Base datasets
Collection
Basic datasets from which other combined datasets are formed. • 6 items • Updated
id stringlengths 9 13 | submitter stringlengths 1 64 ⌀ | authors stringlengths 5 22.9k | title stringlengths 4 245 | comments stringlengths 1 548 ⌀ | journal-ref stringlengths 4 362 ⌀ | doi stringlengths 12 82 ⌀ | report-no stringlengths 2 281 ⌀ | categories stringclasses 793
values | license stringclasses 9
values | orig_abstract stringlengths 24 1.95k | versions listlengths 1 30 | update_date stringlengths 10 10 | authors_parsed sequencelengths 1 1.74k | abstract stringlengths 21 1.95k |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
gr-qc/0606094 | Eric Poisson | Brent Preston and Eric Poisson | A light-cone gauge for black-hole perturbation theory | 12 pages | Phys.Rev. D74 (2006) 064010 | 10.1103/PhysRevD.74.064010 | null | gr-qc | null | The geometrical meaning of the Eddington-Finkelstein coordinates of
Schwarzschild spacetime is well understood: (i) the advanced-time coordinate v
is constant on incoming light cones that converge toward r=0, (ii) the angles
theta and phi are constant on the null generators of each light cone, (iii) the
radial coordi... | [
{
"created": "Wed, 21 Jun 2006 20:39:16 GMT",
"version": "v1"
}
] | 2009-11-11 | [
[
"Preston",
"Brent",
""
],
[
"Poisson",
"Eric",
""
]
] | The geometrical meaning of the Eddington-Finkelstein coordinates of Schwarzschild spacetime is well understood: (i) the advanced-time coordinate v is constant on incoming light cones that converge toward r=0, (ii) the angles theta and phi are constant on the null generators of each light cone, (iii) the radial coordina... |
1702.05201 | Yen-Kheng Lim | Yen-Kheng Lim | Cohomogeneity-1 solutions in Einstein-Maxwell-dilaton gravity | Typos corrected, 20 pages, no figures | Phys. Rev. D 95, 104008 (2017) | 10.1103/PhysRevD.95.104008 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The field equations for Einstein-Maxwell-dilaton gravity in $D$ dimensions
are reduced to an effective one-dimensional system under the influence of
exponential potentials. Various cases where exact solutions can be found are
explored. With this procedure, we present interesting solutions such as a
one-parameter gene... | [
{
"created": "Fri, 17 Feb 2017 01:17:13 GMT",
"version": "v1"
},
{
"created": "Tue, 9 May 2017 00:37:09 GMT",
"version": "v2"
}
] | 2017-05-10 | [
[
"Lim",
"Yen-Kheng",
""
]
] | The field equations for Einstein-Maxwell-dilaton gravity in $D$ dimensions are reduced to an effective one-dimensional system under the influence of exponential potentials. Various cases where exact solutions can be found are explored. With this procedure, we present interesting solutions such as a one-parameter genera... |
0708.1169 | Sebastian Szybka | Piotr T. Chru\'sciel, Sebastian J. Szybka | On the Ernst electro-vacuum equations and ergosurfaces | 15 pages, no figures, minor changes | ActaPhys.Polon.B39:59-74,2008 | null | null | gr-qc | null | The question of smoothness at the ergosurface of the space-time metric
constructed out of solutions (E,phi) of the Ernst electro-vacuum equations is
considered. We prove smoothness of those ergosurfaces at which Re(E) provides
the dominant contribution to f=-(Re(E)+|phi|^2) at the zero-level-set of f.
Some partial re... | [
{
"created": "Thu, 9 Aug 2007 19:32:19 GMT",
"version": "v1"
},
{
"created": "Sat, 10 Nov 2007 09:51:24 GMT",
"version": "v2"
}
] | 2008-11-26 | [
[
"Chruściel",
"Piotr T.",
""
],
[
"Szybka",
"Sebastian J.",
""
]
] | The question of smoothness at the ergosurface of the space-time metric constructed out of solutions (E,phi) of the Ernst electro-vacuum equations is considered. We prove smoothness of those ergosurfaces at which Re(E) provides the dominant contribution to f=-(Re(E)+|phi|^2) at the zero-level-set of f. Some partial resu... |
0905.4121 | Albert Tarantola | Bartolome Coll and Albert Tarantola | Using pulsars to define space-time coordinates | null | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Fully relativistic coordinates have been proposed for (relativistically)
running a "GPS" system. These coordinates are the arrival times of the light
signals emitted by four "satellites" (clocks). Replacing the signals emitted by
four controlled clocks by the signals emitted by four pulsars defines a
coordinate syste... | [
{
"created": "Tue, 26 May 2009 06:19:45 GMT",
"version": "v1"
}
] | 2009-05-27 | [
[
"Coll",
"Bartolome",
""
],
[
"Tarantola",
"Albert",
""
]
] | Fully relativistic coordinates have been proposed for (relativistically) running a "GPS" system. These coordinates are the arrival times of the light signals emitted by four "satellites" (clocks). Replacing the signals emitted by four controlled clocks by the signals emitted by four pulsars defines a coordinate system ... |
gr-qc/0701074 | H Mohseni Sadjadi | H. Mohseni Sadjadi | Particle vs. future event horizon in interacting holographic dark energy
model | 12 pages, 2 figures, references added, abstract changed, typos
corrected. To be published in JCAP | JCAP 0702:026,2007 | 10.1088/1475-7516/2007/02/026 | null | gr-qc astro-ph | null | By choosing the future event horizon as the horizon of the flat FLRW
universe, we show that although the interacting holographic dark energy model
is able to explain the phantom divide line crossing, but the thermodynamics
second law is not respected in this model. We show that if one takes the
particle event horizon... | [
{
"created": "Sun, 14 Jan 2007 08:36:39 GMT",
"version": "v1"
},
{
"created": "Wed, 24 Jan 2007 21:16:31 GMT",
"version": "v2"
},
{
"created": "Wed, 7 Feb 2007 07:10:53 GMT",
"version": "v3"
}
] | 2010-10-27 | [
[
"Sadjadi",
"H. Mohseni",
""
]
] | By choosing the future event horizon as the horizon of the flat FLRW universe, we show that although the interacting holographic dark energy model is able to explain the phantom divide line crossing, but the thermodynamics second law is not respected in this model. We show that if one takes the particle event horizon a... |
gr-qc/0108011 | SG Ghosh | S G Ghosh (Science College, Nagpur, India) and A Beesham (University
of Zululand, RSA) | Higher dimensional inhomogeneous dust collapse and cosmic censorship | 15 pages, LaTeX, 1 figure, 2 tables | Phys.Rev. D64 (2001) 124005 | 10.1103/PhysRevD.64.124005 | null | gr-qc | null | We investigate the occurrence and nature of a naked singularity in the
gravitational collapse of an inhomogeneous dust cloud described by higher
dimensional Tolman-Bondi space-times. The naked singularities are found to be
gravitationally strong in the sense of Tipler. Higher dimensions seem to favour
black holes rat... | [
{
"created": "Fri, 3 Aug 2001 06:45:39 GMT",
"version": "v1"
}
] | 2009-11-07 | [
[
"Ghosh",
"S G",
"",
"Science College, Nagpur, India"
],
[
"Beesham",
"A",
"",
"University\n of Zululand, RSA"
]
] | We investigate the occurrence and nature of a naked singularity in the gravitational collapse of an inhomogeneous dust cloud described by higher dimensional Tolman-Bondi space-times. The naked singularities are found to be gravitationally strong in the sense of Tipler. Higher dimensions seem to favour black holes rathe... |
0708.2378 | Glenn Barnich | Glenn Barnich and Geoffrey Compere | Surface charge algebra in gauge theories and thermodynamic integrability | 40 pages Latex file, published version | J.Math.Phys.49:042901,2008 | 10.1063/1.2889721 | ULB-TH/06-30 | gr-qc hep-th | null | Surface charges and their algebra in interacting Lagrangian gauge field
theories are investigated by using techniques from the variational calculus. In
the case of exact solutions and symmetries, the surface charges are interpreted
as a Pfaff system. Integrability is governed by Frobenius' theorem and the
charges ass... | [
{
"created": "Fri, 17 Aug 2007 15:40:13 GMT",
"version": "v1"
},
{
"created": "Sun, 18 May 2008 22:41:25 GMT",
"version": "v2"
}
] | 2008-11-26 | [
[
"Barnich",
"Glenn",
""
],
[
"Compere",
"Geoffrey",
""
]
] | Surface charges and their algebra in interacting Lagrangian gauge field theories are investigated by using techniques from the variational calculus. In the case of exact solutions and symmetries, the surface charges are interpreted as a Pfaff system. Integrability is governed by Frobenius' theorem and the charges assoc... |
2108.00175 | Mehdi Shokri | Mehdi Shokri, Mohammad Reza Setare, Salvatore Capozziello and Jafar
Sadeghi | Constant-roll $f(R)$ inflation compared with Cosmic Microwave Background
anisotropies and swampland criteria | 16 pages, 5 figures | null | null | null | gr-qc astro-ph.CO | http://creativecommons.org/publicdomain/zero/1.0/ | Inflationary models derived from $f(R)$ gravity, where the scalaron rolls
down with a constant rate from the top to the minimum of the effective
potential, are considered. Specifically, we take into account three $f(R)$
models \textit{i.e.}\,Starobinsky $R^{2}$, $R^{2p}$ and the logarithmic
corrected models. We compa... | [
{
"created": "Sat, 31 Jul 2021 08:10:03 GMT",
"version": "v1"
},
{
"created": "Fri, 13 Aug 2021 05:05:03 GMT",
"version": "v2"
}
] | 2021-08-16 | [
[
"Shokri",
"Mehdi",
""
],
[
"Setare",
"Mohammad Reza",
""
],
[
"Capozziello",
"Salvatore",
""
],
[
"Sadeghi",
"Jafar",
""
]
] | Inflationary models derived from $f(R)$ gravity, where the scalaron rolls down with a constant rate from the top to the minimum of the effective potential, are considered. Specifically, we take into account three $f(R)$ models \textit{i.e.}\,Starobinsky $R^{2}$, $R^{2p}$ and the logarithmic corrected models. We compare... |
gr-qc/0108054 | Louis Scheffer | Louis K. Scheffer | A Conventional Physics Explanation for the Anomalous Acceleration of
Pioneer 10/11 | LaTex; 5 pages, 2 figures, to be submitted to PRL | null | null | null | gr-qc astro-ph | null | Anderson, et al., find the measured trajectories of Pioneer 10 and 11
spacecraft deviate from the trajectories computed from known forces acting on
them. This unmodelled acceleration can be accounted for by non-isotropic
radiation of spacecraft heat. Various forms of non-isotropic radiation were
proposed by Katz, Mur... | [
{
"created": "Wed, 22 Aug 2001 22:19:11 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Scheffer",
"Louis K.",
""
]
] | Anderson, et al., find the measured trajectories of Pioneer 10 and 11 spacecraft deviate from the trajectories computed from known forces acting on them. This unmodelled acceleration can be accounted for by non-isotropic radiation of spacecraft heat. Various forms of non-isotropic radiation were proposed by Katz, Murph... |
gr-qc/0512058 | Tatyana P. Shestakova | T. P. Shestakova | Changing the Hilbert space structure as a consequence of gauge
transformations in "extended phase space" version of quantum geometrodynamics | 12 pages, 2 figures, talk presented at the International Conference
"Physical Interpretations of Relativity Theory - PIRT-2005" (Bauman
University, Moscow, July 2005) | Physical Interpretations of Relativity Theory: Proceedings of
International Meeting (Moscow, 4 - 7 July 2005), eds by M. C. Duffy, V. O.
Gladyshev, A. N. Morozov and P. Rowlands, Moscow, 2005, P. 26 - 34 | null | null | gr-qc | null | In the earlier works on quantum geometrodynamics in extended phase space it
has been argued that a wave function of the Universe should satisfy a
Schrodinger equation. Its form, as well as a measure in Schrodinger scalar
product, depends on a gauge condition (a chosen reference frame). It is known
that the geometry o... | [
{
"created": "Fri, 9 Dec 2005 11:52:22 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Shestakova",
"T. P.",
""
]
] | In the earlier works on quantum geometrodynamics in extended phase space it has been argued that a wave function of the Universe should satisfy a Schrodinger equation. Its form, as well as a measure in Schrodinger scalar product, depends on a gauge condition (a chosen reference frame). It is known that the geometry of ... |
1406.4118 | Farook Rahaman | Farook Rahaman, Koushik Chakraborty, P.K.F. Kuhfittig, G. C. Shit,
Mosiur Rahman | A new deterministic model of strange stars | one new figures and minor revisions have been done. To appear in
Eur.Phys.J.C | null | 10.1140/epjc/s10052-014-3126-6 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The observed evidence for the existence of strange stars and the concomitant
observed masses and radii are used to derive an interpolation formula for the
mass as a function of the radial coordinate. The resulting general mass
function becomes an effective model for a strange star. The analysis is based
on the MIT ba... | [
{
"created": "Fri, 13 Jun 2014 05:21:52 GMT",
"version": "v1"
},
{
"created": "Thu, 9 Oct 2014 12:32:23 GMT",
"version": "v2"
}
] | 2015-06-22 | [
[
"Rahaman",
"Farook",
""
],
[
"Chakraborty",
"Koushik",
""
],
[
"Kuhfittig",
"P. K. F.",
""
],
[
"Shit",
"G. C.",
""
],
[
"Rahman",
"Mosiur",
""
]
] | The observed evidence for the existence of strange stars and the concomitant observed masses and radii are used to derive an interpolation formula for the mass as a function of the radial coordinate. The resulting general mass function becomes an effective model for a strange star. The analysis is based on the MIT bag ... |
gr-qc/9911051 | Esposito Giampiero | Giampiero Esposito | Complex Geometry of Nature and General Relativity | 229 pages, plain Tex | null | null | DSF preprint 99/38 | gr-qc | null | An attempt is made of giving a self-contained introduction to holomorphic
ideas in general relativity, following work over the last thirty years by
several authors. The main topics are complex manifolds, spinor and twistor
methods, heaven spaces.
| [
{
"created": "Mon, 15 Nov 1999 11:06:50 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Esposito",
"Giampiero",
""
]
] | An attempt is made of giving a self-contained introduction to holomorphic ideas in general relativity, following work over the last thirty years by several authors. The main topics are complex manifolds, spinor and twistor methods, heaven spaces. |
gr-qc/0601112 | Hakan Andreasson | Hakan Andreasson, Gerhard Rein | A numerical investigation of the stability of steady states and critical
phenomena for the spherically symmetric Einstein-Vlasov system | 29 pages, 10 figures | Class.Quant.Grav. 23 (2006) 3659-3678 | 10.1088/0264-9381/23/11/001 | null | gr-qc | null | The stability features of steady states of the spherically symmetric
Einstein-Vlasov system are investigated numerically. We find support for the
conjecture by Zeldovich and Novikov that the binding energy maximum along a
steady state sequence signals the onset of instability, a conjecture which we
extend to and conf... | [
{
"created": "Thu, 26 Jan 2006 15:09:46 GMT",
"version": "v1"
}
] | 2009-11-11 | [
[
"Andreasson",
"Hakan",
""
],
[
"Rein",
"Gerhard",
""
]
] | The stability features of steady states of the spherically symmetric Einstein-Vlasov system are investigated numerically. We find support for the conjecture by Zeldovich and Novikov that the binding energy maximum along a steady state sequence signals the onset of instability, a conjecture which we extend to and confir... |
2207.10717 | Hemwati Nandan | Shubham Kala, Hemwati Nandan and Prateek Sharma | Shadow and weak gravitational lensing of a rotating regular black hole
in a non-minimally coupled Einstein-Yang-Mills theory in the presence of
plasma | null | Eur. Phys. J. Plus (2022) | 10.1140/epjp/s13360-022-02634-6 | null | gr-qc | http://creativecommons.org/licenses/by-sa/4.0/ | The null geodesics of the regular and rotating magnetically charged black
hole in a non-minimally coupled Einstein-Yang-Mills theory surrounded by a
plasma medium is studied. The effect of magnetic charge and Yang-Mills
parameter on the effective potential and radius of photon orbits has
investigated. We then study t... | [
{
"created": "Thu, 21 Jul 2022 19:12:44 GMT",
"version": "v1"
}
] | 2022-07-25 | [
[
"Kala",
"Shubham",
""
],
[
"Nandan",
"Hemwati",
""
],
[
"Sharma",
"Prateek",
""
]
] | The null geodesics of the regular and rotating magnetically charged black hole in a non-minimally coupled Einstein-Yang-Mills theory surrounded by a plasma medium is studied. The effect of magnetic charge and Yang-Mills parameter on the effective potential and radius of photon orbits has investigated. We then study the... |
gr-qc/0410098 | Donato Bini | D. Bini, C. Cherubini, B. Mashhoon | Inertial effects of an accelerating black hole | Proceedings of the XVI Conference of the Italian Society for General
Relativity and Gravitation (SIGRAV), Vietri (SA), September 13-16, 2004.
Prepared using revtex4 macros | AIP Conference Proc. 751 (2005) 37-45. | 10.1063/1.1891528 | null | gr-qc astro-ph | null | We consider the static vacuum C metric that represents the gravitational
field of a black hole of mass $m$ undergoing uniform translational acceleration
$A$ such that $mA<1/(3\sqrt{3})$. The influence of the inertial acceleration on
the exterior perturbations of this background are investigated. In particular,
we fin... | [
{
"created": "Wed, 20 Oct 2004 08:35:35 GMT",
"version": "v1"
}
] | 2009-11-10 | [
[
"Bini",
"D.",
""
],
[
"Cherubini",
"C.",
""
],
[
"Mashhoon",
"B.",
""
]
] | We consider the static vacuum C metric that represents the gravitational field of a black hole of mass $m$ undergoing uniform translational acceleration $A$ such that $mA<1/(3\sqrt{3})$. The influence of the inertial acceleration on the exterior perturbations of this background are investigated. In particular, we find ... |
2006.03940 | Badri Krishnan | Daniel Pook-Kolb, Ofek Birnholtz, Jose Luis Jaramillo, Badri Krishnan
and Erik Schnetter | Horizons in a binary black hole merger II: Fluxes, multipole moments and
stability | 25 pages, 19 figures | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study in detail the dynamics and stability of marginally trapped surfaces
during a binary black hole merger. This is the second in a two-part study. The
first part studied the basic geometric aspects of the world tubes traced out by
the marginal surfaces and the status of the area increase law. Here we continue
an... | [
{
"created": "Sat, 6 Jun 2020 18:56:25 GMT",
"version": "v1"
}
] | 2020-06-09 | [
[
"Pook-Kolb",
"Daniel",
""
],
[
"Birnholtz",
"Ofek",
""
],
[
"Jaramillo",
"Jose Luis",
""
],
[
"Krishnan",
"Badri",
""
],
[
"Schnetter",
"Erik",
""
]
] | We study in detail the dynamics and stability of marginally trapped surfaces during a binary black hole merger. This is the second in a two-part study. The first part studied the basic geometric aspects of the world tubes traced out by the marginal surfaces and the status of the area increase law. Here we continue and ... |
gr-qc/0610098 | Palash Baran Pal | Jos\'e F. Nieves and Palash B. Pal | Comment on ``Can gravity distinguish between Dirac and Majorana
neutrinos?'' | 1 page, Revtex, no figure | Phys.Rev.Lett.98:069001,2007 | 10.1103/PhysRevLett.98.069001 | SINP/TNP/06-28 | gr-qc | null | This is a comment on the paper gr-qc/0605153, by Singh, Mobed and Papini.
| [
{
"created": "Fri, 20 Oct 2006 05:06:14 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Nieves",
"José F.",
""
],
[
"Pal",
"Palash B.",
""
]
] | This is a comment on the paper gr-qc/0605153, by Singh, Mobed and Papini. |
gr-qc/0402023 | D.V. Ahluwalia-Khalilova | D. V. Ahluwalia-Khalilova | Special relativity with two invariant scales: Motivation, Fermions,
Bosons, Locality, and Critique | Int. J. Mod. Phys. D (in press). Extended version of a set of two
informal lectures given in "La Sapienza" (Rome, May 2001) | Int.J.Mod.Phys.D13:335-346,2004 | 10.1142/S0218271804004633 | CIU-002 | gr-qc hep-th nucl-th | null | We present a Master equation for description of fermions and bosons for
special relativities with two invariant scales, SR2, (c and lambda_P). We
introduce canonically-conjugate variables (chi^0, chi) to (epsilon, pi) of
Judes-Visser. Together, they bring in a formal element of linearity and
locality in an otherwise ... | [
{
"created": "Wed, 4 Feb 2004 18:57:41 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Ahluwalia-Khalilova",
"D. V.",
""
]
] | We present a Master equation for description of fermions and bosons for special relativities with two invariant scales, SR2, (c and lambda_P). We introduce canonically-conjugate variables (chi^0, chi) to (epsilon, pi) of Judes-Visser. Together, they bring in a formal element of linearity and locality in an otherwise no... |
1804.02842 | Ion I. Cotaescu | Ion I. Cotaescu | Propagators of the Dirac fermions in de Sitter expanding universe | 14 pages, no figures | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The propagators of the Dirac fermions are studied in the configuration
representation on the expanding portion of the $(1+3)$-dimensional de Sitter
spacetime considering a fixed vacuum of Bunch-Davies type. In this
representation the method of Koksma and Prokopec [J. F. Koksma and T. Prokopec,
Class. Quant. Grav. {\b... | [
{
"created": "Mon, 9 Apr 2018 06:49:25 GMT",
"version": "v1"
},
{
"created": "Mon, 30 Apr 2018 15:03:50 GMT",
"version": "v2"
},
{
"created": "Tue, 1 May 2018 06:33:15 GMT",
"version": "v3"
},
{
"created": "Thu, 23 Aug 2018 12:55:24 GMT",
"version": "v4"
},
{
"cre... | 2018-09-20 | [
[
"Cotaescu",
"Ion I.",
""
]
] | The propagators of the Dirac fermions are studied in the configuration representation on the expanding portion of the $(1+3)$-dimensional de Sitter spacetime considering a fixed vacuum of Bunch-Davies type. In this representation the method of Koksma and Prokopec [J. F. Koksma and T. Prokopec, Class. Quant. Grav. {\bf ... |
2102.06433 | Bahram Mashhoon | Bahram Mashhoon | Gravitomagnetic Stern--Gerlach Force | 20 pages; v2: minor improvements; v3: references added; v4:
references [47] and [62] updated | Entropy 23, 445 (2021) | 10.3390/e23040445 | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | A heuristic description of the spin-rotation-gravity coupling is presented
and the implications of the corresponding gravitomagnetic Stern--Gerlach force
are briefly mentioned. It is shown, within the framework of linearized general
relativity, that the gravitomagnetic Stern--Gerlach force reduces in the
appropriate ... | [
{
"created": "Fri, 12 Feb 2021 10:28:29 GMT",
"version": "v1"
},
{
"created": "Sat, 27 Feb 2021 08:34:27 GMT",
"version": "v2"
},
{
"created": "Sun, 21 Mar 2021 14:29:57 GMT",
"version": "v3"
},
{
"created": "Fri, 9 Apr 2021 18:11:22 GMT",
"version": "v4"
}
] | 2021-04-21 | [
[
"Mashhoon",
"Bahram",
""
]
] | A heuristic description of the spin-rotation-gravity coupling is presented and the implications of the corresponding gravitomagnetic Stern--Gerlach force are briefly mentioned. It is shown, within the framework of linearized general relativity, that the gravitomagnetic Stern--Gerlach force reduces in the appropriate co... |
1901.10285 | Sebastian Szybka | Sebastian J. Szybka, Adam Cie\'slik | Standing waves in general relativity | 9 pages | Phys. Rev. D 100, 064025 (2019) | 10.1103/PhysRevD.100.064025 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We propose a covariant definition of standing gravitational waves in general
relativity.
| [
{
"created": "Tue, 29 Jan 2019 13:49:06 GMT",
"version": "v1"
},
{
"created": "Thu, 26 Sep 2019 08:38:06 GMT",
"version": "v2"
}
] | 2019-09-27 | [
[
"Szybka",
"Sebastian J.",
""
],
[
"Cieślik",
"Adam",
""
]
] | We propose a covariant definition of standing gravitational waves in general relativity. |
1403.0371 | Cosimo Bambi | Naoki Tsukamoto, Zilong Li, Cosimo Bambi | Constraining the spin and the deformation parameters from the black hole
shadow | 1+18 pages, 11 figures. v2: a few typos corrected | JCAP 1406:043,2014 | 10.1088/1475-7516/2014/06/043 | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Within 5-10 years, very-long baseline interferometry (VLBI) facilities will
be able to directly image the accretion flow around SgrA$^*$, the super-massive
black hole candidate at the center of the Galaxy, and observe the black hole
"shadow". In 4-dimensional general relativity, the no-hair theorem asserts that
uncha... | [
{
"created": "Mon, 3 Mar 2014 10:24:41 GMT",
"version": "v1"
},
{
"created": "Wed, 18 Jun 2014 14:24:30 GMT",
"version": "v2"
}
] | 2014-06-19 | [
[
"Tsukamoto",
"Naoki",
""
],
[
"Li",
"Zilong",
""
],
[
"Bambi",
"Cosimo",
""
]
] | Within 5-10 years, very-long baseline interferometry (VLBI) facilities will be able to directly image the accretion flow around SgrA$^*$, the super-massive black hole candidate at the center of the Galaxy, and observe the black hole "shadow". In 4-dimensional general relativity, the no-hair theorem asserts that uncharg... |
1107.5979 | Mariano Cadoni | Mariano Cadoni, Salvatore Mignemi and Matteo Serra | Exact solutions with AdS asymptotics of Einstein and Einstein-Maxwell
gravity minimally coupled to a scalar field | Some references added | null | 10.1103/PhysRevD.84.084046 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We propose a general method for solving exactly the static field equations of
Einstein and Einstein-Maxwell gravity minimally coupled to a scalar field. Our
method starts from an ansatz for the scalar field profile, and determines,
together with the metric functions, the corresponding form of the scalar
self-interact... | [
{
"created": "Fri, 29 Jul 2011 14:17:28 GMT",
"version": "v1"
},
{
"created": "Fri, 12 Aug 2011 14:16:35 GMT",
"version": "v2"
}
] | 2013-05-29 | [
[
"Cadoni",
"Mariano",
""
],
[
"Mignemi",
"Salvatore",
""
],
[
"Serra",
"Matteo",
""
]
] | We propose a general method for solving exactly the static field equations of Einstein and Einstein-Maxwell gravity minimally coupled to a scalar field. Our method starts from an ansatz for the scalar field profile, and determines, together with the metric functions, the corresponding form of the scalar self-interactio... |
1412.8470 | Mark D. Roberts | Mark D. Roberts | Hybrid imploding scalar and ads spacetime | size increased from 3 pages to 10 pages | null | 10.1016/j.physletb.2019.06.024 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A solution to the massless scalar cosmological constant field equations is
presented. The solution has imploding scalar and parts of anti-deSitter or
deSitter spacetime as limiting cases. Some of the solutions properties are
discussed however not much can be said because of the contrasting properties of
imploding sca... | [
{
"created": "Mon, 29 Dec 2014 14:51:28 GMT",
"version": "v1"
},
{
"created": "Mon, 2 Feb 2015 15:32:59 GMT",
"version": "v2"
},
{
"created": "Sat, 27 Jul 2019 15:01:24 GMT",
"version": "v3"
}
] | 2019-07-30 | [
[
"Roberts",
"Mark D.",
""
]
] | A solution to the massless scalar cosmological constant field equations is presented. The solution has imploding scalar and parts of anti-deSitter or deSitter spacetime as limiting cases. Some of the solutions properties are discussed however not much can be said because of the contrasting properties of imploding scala... |
0710.0258 | D\"orte Hansen | D\"orte Hansen | Next to leading order gravitational wave emission and dynamical
evolution of compact binary systems with spin | typos corrected; version submitted to Class. Quant. Grav | Class.Quant.Grav.25:165011,2008 | 10.1088/0264-9381/25/16/165011 | null | gr-qc | null | Compact binary systems with spinning components are considered. Finite size
effects due to rotational deformation are taken into account. The dynamical
evolution and next to leading order gravitational wave forms are calculated,
taking into account the orbital motion up to the first post-Newtonian
approximation.
| [
{
"created": "Mon, 1 Oct 2007 10:19:32 GMT",
"version": "v1"
},
{
"created": "Wed, 28 Nov 2007 17:00:45 GMT",
"version": "v2"
}
] | 2008-11-26 | [
[
"Hansen",
"Dörte",
""
]
] | Compact binary systems with spinning components are considered. Finite size effects due to rotational deformation are taken into account. The dynamical evolution and next to leading order gravitational wave forms are calculated, taking into account the orbital motion up to the first post-Newtonian approximation. |
1611.01435 | Wolfgang Muschik | Wolfgang Muschik | A modified Belinfante/Rosenfeld Procedure for Testing the Compatibility
of General-Covariant Continuum Physics and General Relativity Theory | null | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Creating a modified Belinfante/Rosenfeld procedure, Mathisson-Papapetrou-like
equations are derived by which a comparison of General-Covariant Continuum
Physics with General Relativity Theory becomes possible.
| [
{
"created": "Fri, 4 Nov 2016 16:11:45 GMT",
"version": "v1"
}
] | 2016-11-07 | [
[
"Muschik",
"Wolfgang",
""
]
] | Creating a modified Belinfante/Rosenfeld procedure, Mathisson-Papapetrou-like equations are derived by which a comparison of General-Covariant Continuum Physics with General Relativity Theory becomes possible. |
1702.02314 | Sergey Yu. Vernov | Alexander Yu. Kamenshchik, Ekaterina O. Pozdeeva, Sergey Yu. Vernov,
Alessandro Tronconi, Giovanni Venturi | Bianchi-I cosmological model and crossing singularities | 11 pages, v2: accepted for publication in Phys. Rev. D | Phys. Rev. D 95, 083503 (2017) | 10.1103/PhysRevD.95.083503 | null | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider a rather simple method for the description of the Big Bang - Big
Crunch cosmological singularity crossing. For the flat Friedmann universe this
method gives the same results as more complicated methods, using Weyl symmetry
or the transitions between the Jordan and Einstein frames. It is then easily
genera... | [
{
"created": "Wed, 8 Feb 2017 07:50:16 GMT",
"version": "v1"
},
{
"created": "Thu, 30 Mar 2017 12:28:39 GMT",
"version": "v2"
}
] | 2017-04-12 | [
[
"Kamenshchik",
"Alexander Yu.",
""
],
[
"Pozdeeva",
"Ekaterina O.",
""
],
[
"Vernov",
"Sergey Yu.",
""
],
[
"Tronconi",
"Alessandro",
""
],
[
"Venturi",
"Giovanni",
""
]
] | We consider a rather simple method for the description of the Big Bang - Big Crunch cosmological singularity crossing. For the flat Friedmann universe this method gives the same results as more complicated methods, using Weyl symmetry or the transitions between the Jordan and Einstein frames. It is then easily generali... |
1808.09099 | Fabio Biancalana | Charles W. Robson, Leone Di Mauro Villari and Fabio Biancalana | Universal quantum Hawking evaporation of integrable two-dimensional
solitons | null | null | 10.1088/1367-2630/ab1bf5 | null | gr-qc hep-th nlin.PS nlin.SI physics.optics quant-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We show that any soliton solution of an arbitrary two-dimensional integrable
equation has the potential to eventually evaporate and emit the exact analogue
of Hawking radiation from black holes. From the AKNS matrix formulation of
integrability, we show that it is possible to associate a real spacetime metric
tensor ... | [
{
"created": "Mon, 27 Aug 2018 09:04:11 GMT",
"version": "v1"
}
] | 2019-09-04 | [
[
"Robson",
"Charles W.",
""
],
[
"Villari",
"Leone Di Mauro",
""
],
[
"Biancalana",
"Fabio",
""
]
] | We show that any soliton solution of an arbitrary two-dimensional integrable equation has the potential to eventually evaporate and emit the exact analogue of Hawking radiation from black holes. From the AKNS matrix formulation of integrability, we show that it is possible to associate a real spacetime metric tensor wh... |
gr-qc/9307008 | null | C.Barrabes, B.Boisseau and M.Sakellariadou | Gravitational Effects on Domain Walls with Curvature Correction | null | Phys.Rev. D49 (1994) 2734-2739 | 10.1103/PhysRevD.49.2734 | null | gr-qc | null | We derive the effective action for a domain wall with small thickness in
curved spacetime and show that, apart from the Nambu term, it includes a
contribution proportional to the induced curvature. We then use this action to
study the dynamics of a spherical thick bubble of false vacuum (de Sitter)
surrounded by an i... | [
{
"created": "Fri, 9 Jul 1993 19:27:31 GMT",
"version": "v1"
}
] | 2009-10-22 | [
[
"Barrabes",
"C.",
""
],
[
"Boisseau",
"B.",
""
],
[
"Sakellariadou",
"M.",
""
]
] | We derive the effective action for a domain wall with small thickness in curved spacetime and show that, apart from the Nambu term, it includes a contribution proportional to the induced curvature. We then use this action to study the dynamics of a spherical thick bubble of false vacuum (de Sitter) surrounded by an inf... |
1402.6452 | Lijing Shao | Lijing Shao | Tests of local Lorentz invariance violation of gravity in the standard
model extension with pulsars | minor modification; published in Physical Review Letters | Physical Review Letters 112 (2014) 111103 | 10.1103/PhysRevLett.112.111103 | null | gr-qc astro-ph.HE hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Standard-model extension (SME) is an effective field theory introducing all
possible Lorentz-violating (LV) operators to the standard model (SM) and
general relativity (GR). In the pure-gravity sector of minimal SME (mSME), nine
coefficients describe dominant observable deviations from GR. We systematically
implement... | [
{
"created": "Wed, 26 Feb 2014 08:36:36 GMT",
"version": "v1"
},
{
"created": "Sun, 23 Mar 2014 01:46:29 GMT",
"version": "v2"
}
] | 2014-03-25 | [
[
"Shao",
"Lijing",
""
]
] | Standard-model extension (SME) is an effective field theory introducing all possible Lorentz-violating (LV) operators to the standard model (SM) and general relativity (GR). In the pure-gravity sector of minimal SME (mSME), nine coefficients describe dominant observable deviations from GR. We systematically implemented... |
2105.07956 | Carlos A. S. Almeida | R. Oliveira, D. M. Dantas, and C. A. S. Almeida | Quasinormal frequencies for a black hole in a bumblebee gravity | 12 pages, 10 figures | null | 10.1209/0295-5075/ac130c | null | gr-qc hep-th | http://creativecommons.org/licenses/by/4.0/ | After recent observational events like the LIGO-Virgo detections of
gravitational waves and the shadow image of M87* supermassive black hole by
Event Horizon Telescope (EHT), the theoretical study of black holes was
significantly improved. Quantities as quasinormal frequencies, shadows, and
light deflection become mo... | [
{
"created": "Thu, 13 May 2021 23:14:19 GMT",
"version": "v1"
}
] | 2021-09-22 | [
[
"Oliveira",
"R.",
""
],
[
"Dantas",
"D. M.",
""
],
[
"Almeida",
"C. A. S.",
""
]
] | After recent observational events like the LIGO-Virgo detections of gravitational waves and the shadow image of M87* supermassive black hole by Event Horizon Telescope (EHT), the theoretical study of black holes was significantly improved. Quantities as quasinormal frequencies, shadows, and light deflection become more... |
1903.06951 | Ian Vega | Karlo de Leon, Ian Vega | Weak gravitational lensing by two-power-law densities using the
Gauss-Bonnet theorem | 11 pages, 3 figures | Phys. Rev. D 99, 124007 (2019) | 10.1103/PhysRevD.99.124007 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the weak-field deflection of light by mass distributions described
by two-power-law densities $\rho(R)=\rho_0 R^{-\alpha}(R+1)^{\beta-\alpha}$,
where $\alpha$ and $\beta$ are non-negative integers. New analytic expressions
of deflection angles are obtained via the application of the Gauss-Bonnet
theorem to a... | [
{
"created": "Sat, 16 Mar 2019 16:07:18 GMT",
"version": "v1"
}
] | 2019-06-19 | [
[
"de Leon",
"Karlo",
""
],
[
"Vega",
"Ian",
""
]
] | We study the weak-field deflection of light by mass distributions described by two-power-law densities $\rho(R)=\rho_0 R^{-\alpha}(R+1)^{\beta-\alpha}$, where $\alpha$ and $\beta$ are non-negative integers. New analytic expressions of deflection angles are obtained via the application of the Gauss-Bonnet theorem to a c... |
2004.15002 | Romain Ruzziconi | Glenn Barnich, Pujian Mao, Romain Ruzziconi | Conserved currents in the Palatini formulation of general relativity | 12 Pages | PoS (CORFU2019) 171 | 10.22323/1.376.0171 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We derive the expressions for the local, on-shell closed co-dimension 2 forms
in the Palatini formulation of general relativity and explicitly show their
on-shell equivalence to those of the metric formulation. When compared to other
first order formulations, two subtleties have to be addressed during the
constructio... | [
{
"created": "Thu, 30 Apr 2020 17:48:21 GMT",
"version": "v1"
}
] | 2020-08-21 | [
[
"Barnich",
"Glenn",
""
],
[
"Mao",
"Pujian",
""
],
[
"Ruzziconi",
"Romain",
""
]
] | We derive the expressions for the local, on-shell closed co-dimension 2 forms in the Palatini formulation of general relativity and explicitly show their on-shell equivalence to those of the metric formulation. When compared to other first order formulations, two subtleties have to be addressed during the construction:... |
0804.3840 | Kouji Nakamura | Kouji Nakamura | Perturbations of Matter Fields in the Second-order Gauge-invariant
Cosmological Perturbation Theory | (v1) 76 pages, no figure; (v2) minor revision, typos are corrected,
references are added; (v3) Title is changed, Compactified into 55 pages,
Comment on the comparison with the other work is added; (v4)typos are
corrected | Phys.Rev.D80:124021,2009 | 10.1103/PhysRevD.80.124021 | null | gr-qc astro-ph hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Some formulae for the perturbations of the matter fields are summarized
within the framework of the second-order gauge-invariant cosmological
perturbation theory in a four dimensional homogeneous isotropic universe, which
is developed in the papers [K.Nakamura, Prog.Theor.Phys., 117 (2007), 17.]. We
derive the formul... | [
{
"created": "Thu, 24 Apr 2008 05:27:31 GMT",
"version": "v1"
},
{
"created": "Wed, 30 Jul 2008 06:51:49 GMT",
"version": "v2"
},
{
"created": "Wed, 31 Dec 2008 06:48:10 GMT",
"version": "v3"
},
{
"created": "Sat, 3 Jan 2009 05:50:35 GMT",
"version": "v4"
}
] | 2009-12-30 | [
[
"Nakamura",
"Kouji",
""
]
] | Some formulae for the perturbations of the matter fields are summarized within the framework of the second-order gauge-invariant cosmological perturbation theory in a four dimensional homogeneous isotropic universe, which is developed in the papers [K.Nakamura, Prog.Theor.Phys., 117 (2007), 17.]. We derive the formulae... |
1310.1963 | Emil Mottola | Paul R. Anderson (Wake Forest Univ.) and Emil Mottola (Los Alamos
National Laboratory) | Quantum Vacuum Instability of 'Eternal' de Sitter Space | 47 pages, 11 figures | Phys. Rev. D 89, 104039 (2014) | 10.1103/PhysRevD.89.104039 | LA-UR-13-26990 | gr-qc astro-ph.CO hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The Euclidean or Bunch-Davies O(4,1) invariant 'vacuum' state of quantum
fields in global de Sitter space is shown to be unstable to small
perturbations, even for a massive free field with no self-interactions. There
are perturbations of this state with arbitrarily small energy density at early
times that is exponent... | [
{
"created": "Mon, 7 Oct 2013 22:05:35 GMT",
"version": "v1"
}
] | 2014-05-28 | [
[
"Anderson",
"Paul R.",
"",
"Wake Forest Univ."
],
[
"Mottola",
"Emil",
"",
"Los Alamos\n National Laboratory"
]
] | The Euclidean or Bunch-Davies O(4,1) invariant 'vacuum' state of quantum fields in global de Sitter space is shown to be unstable to small perturbations, even for a massive free field with no self-interactions. There are perturbations of this state with arbitrarily small energy density at early times that is exponentia... |
1309.4836 | Yusuke Sakakibara | Y. Sakakibara, N. Kimura, T. Suzuki, K. Yamamoto, D. Chen, S. Koike,
C. Tokoku, T. Uchiyama, M. Ohashi and K. Kuroda | A Study of Cooling Time Reduction of Interferometric Cryogenic
Gravitational Wave Detectors Using a High-Emissivity Coating | 8 pages, 9 figures, Proceedings of CEC/ICMC 2013 | null | 10.1063/1.4860839 | null | gr-qc astro-ph.IM physics.ins-det | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In interferometric cryogenic gravitational wave detectors, there are plans to
cool mirrors and their suspension systems (payloads) in order to reduce thermal
noise, that is, one of the fundamental noise sources. Because of the large
payload masses (several hundred kg in total) and their thermal isolation, a
cooling t... | [
{
"created": "Thu, 19 Sep 2013 02:12:48 GMT",
"version": "v1"
}
] | 2014-03-05 | [
[
"Sakakibara",
"Y.",
""
],
[
"Kimura",
"N.",
""
],
[
"Suzuki",
"T.",
""
],
[
"Yamamoto",
"K.",
""
],
[
"Chen",
"D.",
""
],
[
"Koike",
"S.",
""
],
[
"Tokoku",
"C.",
""
],
[
"Uchiyama",
"T.",
"... | In interferometric cryogenic gravitational wave detectors, there are plans to cool mirrors and their suspension systems (payloads) in order to reduce thermal noise, that is, one of the fundamental noise sources. Because of the large payload masses (several hundred kg in total) and their thermal isolation, a cooling tim... |
2002.00437 | Maxim Eingorn | Ezgi Canay, Maxim Eingorn | Duel of cosmological screening lengths | 17 pages, one nice figure | Physics of the Dark Universe 29, 100565 (2020) | 10.1016/j.dark.2020.100565 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Two distinct perturbative approaches have been recently formulated within
General Relativity, arguing for the screening of gravity in the $\Lambda$CDM
Universe. In this paper we compare them and show that the offered screening
concepts, each characterized by its own interaction range, can peacefully
coexist. Accordin... | [
{
"created": "Sun, 2 Feb 2020 17:47:00 GMT",
"version": "v1"
}
] | 2020-04-30 | [
[
"Canay",
"Ezgi",
""
],
[
"Eingorn",
"Maxim",
""
]
] | Two distinct perturbative approaches have been recently formulated within General Relativity, arguing for the screening of gravity in the $\Lambda$CDM Universe. In this paper we compare them and show that the offered screening concepts, each characterized by its own interaction range, can peacefully coexist. Accordingl... |
1703.03295 | Swagat Saurav Mishra | Swagat S. Mishra, Varun Sahni and Yuri Shtanov | Sourcing Dark Matter and Dark Energy from $\alpha$-attractors | 43 pages, 22 figures, Some clarifications and an additional
reference. Main results unchanged. Accepted for publication in JCAP | JCAP 06 (2017) 045 | 10.1088/1475-7516/2017/06/045 | null | gr-qc astro-ph.CO hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Recently, Kallosh and Linde have drawn attention to a new family of
superconformal inflationary potentials, subsequently called
$\alpha$-attractors. The $\alpha$-attractor family can interpolate between a
large class of inflationary models. It also has an important theoretical
underpinning within the framework of sup... | [
{
"created": "Tue, 7 Mar 2017 19:00:59 GMT",
"version": "v1"
},
{
"created": "Thu, 16 Mar 2017 05:05:12 GMT",
"version": "v2"
},
{
"created": "Fri, 16 Jun 2017 06:32:51 GMT",
"version": "v3"
}
] | 2018-10-26 | [
[
"Mishra",
"Swagat S.",
""
],
[
"Sahni",
"Varun",
""
],
[
"Shtanov",
"Yuri",
""
]
] | Recently, Kallosh and Linde have drawn attention to a new family of superconformal inflationary potentials, subsequently called $\alpha$-attractors. The $\alpha$-attractor family can interpolate between a large class of inflationary models. It also has an important theoretical underpinning within the framework of super... |
gr-qc/9504004 | Ted Jacobson | Ted Jacobson | Thermodynamics of Spacetime: The Einstein Equation of State | 8 pages, 1 figure. Revised version has core unchanged but paper
rewritten and expanded to clarify the reasoning and to emphasize some points.
One figure added | Phys.Rev.Lett.75:1260-1263,1995 | 10.1103/PhysRevLett.75.1260 | UMDGR-95-114 | gr-qc hep-th | null | The Einstein equation is derived from the proportionality of entropy and
horizon area together with the fundamental relation $\delta Q=TdS$ connecting
heat, entropy, and temperature. The key idea is to demand that this relation
hold for all the local Rindler causal horizons through each spacetime point,
with $\delta ... | [
{
"created": "Tue, 4 Apr 1995 18:54:14 GMT",
"version": "v1"
},
{
"created": "Tue, 6 Jun 1995 17:47:58 GMT",
"version": "v2"
}
] | 2010-11-01 | [
[
"Jacobson",
"Ted",
""
]
] | The Einstein equation is derived from the proportionality of entropy and horizon area together with the fundamental relation $\delta Q=TdS$ connecting heat, entropy, and temperature. The key idea is to demand that this relation hold for all the local Rindler causal horizons through each spacetime point, with $\delta Q$... |
0910.0335 | Vladimir S. Manko | V.S. Manko and E. Ruiz | Schwarzschild black hole levitating in the hyperextreme Kerr field | 6 pages, 1 figure; improved version | Gen. Rel. Grav. 44: 2891-2899, 2012 | 10.1007/s10714-012-1429-1 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The equilibrium configurations between a Schwarzschild black hole and a
hyperextreme Kerr object are shown to be described by a three-parameter
subfamily of the extended double-Kerr solution. For this subfamily, its Ernst
potential and corresponding metric functions, we provide a physical
representation which employs... | [
{
"created": "Fri, 2 Oct 2009 07:04:38 GMT",
"version": "v1"
},
{
"created": "Thu, 5 Nov 2015 06:33:06 GMT",
"version": "v2"
}
] | 2015-11-06 | [
[
"Manko",
"V. S.",
""
],
[
"Ruiz",
"E.",
""
]
] | The equilibrium configurations between a Schwarzschild black hole and a hyperextreme Kerr object are shown to be described by a three-parameter subfamily of the extended double-Kerr solution. For this subfamily, its Ernst potential and corresponding metric functions, we provide a physical representation which employs a... |
1706.07482 | Abhay Ashtekar | Abhay Ashtekar | Implications of a positive cosmological constant for general relativity | A Key Issues Review, Commissioned by Rep. Prog. Phys. 12 pages, 3
figures | Rep. Prog. Phys. 80, 102901 (2017) | 10.1088/1361-6633/aa7bb1 | null | gr-qc hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Most of the literature on general relativity over the last century assumes
that the cosmological constant $\Lambda$ is zero. However, by now independent
observations have led to a consensus that the dynamics of the universe is best
described by Einstein's equations with a small but positive $\Lambda$.
Interestingly, ... | [
{
"created": "Thu, 22 Jun 2017 20:37:33 GMT",
"version": "v1"
}
] | 2021-04-02 | [
[
"Ashtekar",
"Abhay",
""
]
] | Most of the literature on general relativity over the last century assumes that the cosmological constant $\Lambda$ is zero. However, by now independent observations have led to a consensus that the dynamics of the universe is best described by Einstein's equations with a small but positive $\Lambda$. Interestingly, th... |
gr-qc/9506031 | Marcelo Jose Reboucas | J. Santos, M.J. Reboucas, A.F.F. Teixeira | Classification of Second Order Symmetric Tensors in 5-Dimensional
Kaluza-Klein-Type Theories | 22 pages, To appear in J. Math. Phys 36 (1995) | J.Math.Phys. 36 (1995) 3074-3084 | 10.1063/1.531013 | CBPF-NF-052/94 | gr-qc astro-ph | null | An algebraic classification of second order symmetric tensors in
5-dimensional Kaluza-Klein-type Lorentzian spaces is presented by using Jordan
matrices. We show that the possible Segre types are $[1,1111]$, [2111], [311],
[z,\bar{z},111], and the degeneracies thereof. A set of canonical forms for
each Segre type is ... | [
{
"created": "Sat, 17 Jun 1995 01:51:15 GMT",
"version": "v1"
}
] | 2015-06-25 | [
[
"Santos",
"J.",
""
],
[
"Reboucas",
"M. J.",
""
],
[
"Teixeira",
"A. F. F.",
""
]
] | An algebraic classification of second order symmetric tensors in 5-dimensional Kaluza-Klein-type Lorentzian spaces is presented by using Jordan matrices. We show that the possible Segre types are $[1,1111]$, [2111], [311], [z,\bar{z},111], and the degeneracies thereof. A set of canonical forms for each Segre type is fo... |
gr-qc/9909088 | Iver H. Brevik | I. Brevik and A. G. Fr{\o}seth | Energy Production in the Formation of a Finite Thickness Cosmic String | 20 pages, LaTeX, no figures | Phys.Rev.D61:085011,2000 | 10.1103/PhysRevD.61.085011 | null | gr-qc | null | The classical electromagnetic modes outside a long, straight, superconducting
cosmic string are calculated, assuming the string to be surrounded by a
superconducting cylindric surface of radius R. Thereafter, by use of a
Bogoliubov-type argument, the electromagnetic energy W produced per unit length
in the lowest two... | [
{
"created": "Wed, 29 Sep 1999 15:32:45 GMT",
"version": "v1"
}
] | 2009-01-14 | [
[
"Brevik",
"I.",
""
],
[
"Frøseth",
"A. G.",
""
]
] | The classical electromagnetic modes outside a long, straight, superconducting cosmic string are calculated, assuming the string to be surrounded by a superconducting cylindric surface of radius R. Thereafter, by use of a Bogoliubov-type argument, the electromagnetic energy W produced per unit length in the lowest two m... |
2303.06239 | Chengcheng Liu | Chengcheng Liu, Shahn Majid | Quantum Kaluza-Klein theory with $M_2(\mathbb{C})$ | null | JHEP 09 (2023) 102 | 10.1007/JHEP09(2023)102 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Following steps analogous to classical Kaluza-Klein theory, we solve for the
quantum Riemannian geometry on $C^\infty(M)\otimes M_2(\mathbb{C})$ in terms of
classical Riemannian geometry on a smooth manifold $M$, a finite quantum
geometry on the algebra $M_2(\mathbb{C})$ of $2\times 2$ matrices, and a
quantum metric ... | [
{
"created": "Fri, 10 Mar 2023 23:09:22 GMT",
"version": "v1"
}
] | 2023-11-03 | [
[
"Liu",
"Chengcheng",
""
],
[
"Majid",
"Shahn",
""
]
] | Following steps analogous to classical Kaluza-Klein theory, we solve for the quantum Riemannian geometry on $C^\infty(M)\otimes M_2(\mathbb{C})$ in terms of classical Riemannian geometry on a smooth manifold $M$, a finite quantum geometry on the algebra $M_2(\mathbb{C})$ of $2\times 2$ matrices, and a quantum metric cr... |
1005.3722 | George Gillies | Alvin J. Sanders and George T. Gillies | Precise Gravitational Tests via the SEE Mission: A Proposal for
Space-Based Measurements | Presented at the 2004 Pescara Meeting on Tests of the Equivalence
Principle | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The objective of a SEE mission is to support development of unification
theory by carrying out sensitive gravitational tests capable of determining
whether various alternative theories are compatible with nature. Gravitation is
a key "missing link" in unification theory. Nearly all unification theories
incorporate gr... | [
{
"created": "Thu, 20 May 2010 14:53:58 GMT",
"version": "v1"
}
] | 2010-05-21 | [
[
"Sanders",
"Alvin J.",
""
],
[
"Gillies",
"George T.",
""
]
] | The objective of a SEE mission is to support development of unification theory by carrying out sensitive gravitational tests capable of determining whether various alternative theories are compatible with nature. Gravitation is a key "missing link" in unification theory. Nearly all unification theories incorporate grav... |
0901.4629 | Ujjal Debnath | Surajit Chattopadhyay and Ujjal Debnath | Tachyonic field interacting with Scalar (Phantom) Field | 7 LateX pages, 16 figures, RevTeX style | Braz.J.Phys.39:86-91,2009 | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this letter, we have considered the universe is filled with the mixture of
tachyonic field and scalar or phantom field. If the tachyonic field interacts
with scalar or phantom field, the interaction term decays with time and the
energy for scalar field is transferred to tachyonic field or the energy for
phantom fi... | [
{
"created": "Thu, 29 Jan 2009 09:33:08 GMT",
"version": "v1"
}
] | 2009-04-24 | [
[
"Chattopadhyay",
"Surajit",
""
],
[
"Debnath",
"Ujjal",
""
]
] | In this letter, we have considered the universe is filled with the mixture of tachyonic field and scalar or phantom field. If the tachyonic field interacts with scalar or phantom field, the interaction term decays with time and the energy for scalar field is transferred to tachyonic field or the energy for phantom fiel... |
gr-qc/0203085 | Harald P. Pfeiffer | Harald P. Pfeiffer, Gregory B. Cook, Saul A. Teukolsky | Comparing initial-data sets for binary black holes | 18 pages, 12 figures, accepted for publication in Phys. Rev. D | Phys.Rev. D66 (2002) 024047 | 10.1103/PhysRevD.66.024047 | null | gr-qc | null | We compare the results of constructing binary black hole initial data with
three different decompositions of the constraint equations of general
relativity. For each decomposition we compute the initial data using a
superposition of two Kerr-Schild black holes to fix the freely specifiable
data. We find that these in... | [
{
"created": "Mon, 25 Mar 2002 21:35:36 GMT",
"version": "v1"
},
{
"created": "Sat, 22 Jun 2002 21:41:26 GMT",
"version": "v2"
}
] | 2009-11-07 | [
[
"Pfeiffer",
"Harald P.",
""
],
[
"Cook",
"Gregory B.",
""
],
[
"Teukolsky",
"Saul A.",
""
]
] | We compare the results of constructing binary black hole initial data with three different decompositions of the constraint equations of general relativity. For each decomposition we compute the initial data using a superposition of two Kerr-Schild black holes to fix the freely specifiable data. We find that these init... |
1704.08570 | Jiri Podolsky | Jiri Podolsky, Robert Svarc, Roland Steinbauer, Clemens S\"amann | Penrose junction conditions extended: impulsive waves with gyratons | 15 pages, 2 figures | Phys. Rev. D 96, 064043 (2017) | 10.1103/PhysRevD.96.064043 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We generalize the classical junction conditions for constructing impulsive
gravitational waves by the Penrose "cut and paste" method. Specifically, we
study nonexpanding impulses which propagate in spaces of constant curvature
with any value of the cosmological constant (that is Minkowski, de Sitter, or
anti-de Sitte... | [
{
"created": "Thu, 27 Apr 2017 13:47:46 GMT",
"version": "v1"
}
] | 2017-10-04 | [
[
"Podolsky",
"Jiri",
""
],
[
"Svarc",
"Robert",
""
],
[
"Steinbauer",
"Roland",
""
],
[
"Sämann",
"Clemens",
""
]
] | We generalize the classical junction conditions for constructing impulsive gravitational waves by the Penrose "cut and paste" method. Specifically, we study nonexpanding impulses which propagate in spaces of constant curvature with any value of the cosmological constant (that is Minkowski, de Sitter, or anti-de Sitter ... |
gr-qc/0504043 | Leonardo Modesto | Leonardo Modesto | Quantum Gravitational Collapse | 13 pages, LaTeX | null | null | null | gr-qc | null | We apply the recent results in Loop Quantum Cosmology and in the resolution
of Black Hole singularity to the gravitational collapse of a star. We study the
dynamic of the space time in the interior of the Schwarzschild radius. In
particular in our simple model we obtain the evolution of the matter inside the
star and... | [
{
"created": "Sun, 10 Apr 2005 12:36:18 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Modesto",
"Leonardo",
""
]
] | We apply the recent results in Loop Quantum Cosmology and in the resolution of Black Hole singularity to the gravitational collapse of a star. We study the dynamic of the space time in the interior of the Schwarzschild radius. In particular in our simple model we obtain the evolution of the matter inside the star and o... |
1102.0907 | Dana Levanony | Dana Levanony and Amos Ori | Extended time-travelling objects in Misner space | accepted for publication in Physical Review D | Phys.Rev.D83:044043,2011 | 10.1103/PhysRevD.83.044043 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Misner space is a two-dimensional (2D) locally-flat spacetime which elegantly
demonstrates the emergence of closed timelike curves from causally well-behaved
initial conditions. Here we explore the motion of rigid extended objects in
this time-machine spacetime. This kind of 2D time-travel is found to be risky
due to... | [
{
"created": "Fri, 4 Feb 2011 13:25:49 GMT",
"version": "v1"
}
] | 2011-03-23 | [
[
"Levanony",
"Dana",
""
],
[
"Ori",
"Amos",
""
]
] | Misner space is a two-dimensional (2D) locally-flat spacetime which elegantly demonstrates the emergence of closed timelike curves from causally well-behaved initial conditions. Here we explore the motion of rigid extended objects in this time-machine spacetime. This kind of 2D time-travel is found to be risky due to i... |
0811.4055 | Wolf-Dieter Reinhard Stein | W.-D. R. Stein | An Alternative to Kaluza | 4 pages | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In Kaluza derived theories the electromagnetic potential is interpreted as a
part of the metric in a higher dimensional theory of gravity. Here we present a
more Yang-Mills like unification of classical electromagnetism and gravity
within five dimensions, where the electromagnetic potential is related to the
connecio... | [
{
"created": "Tue, 25 Nov 2008 11:13:41 GMT",
"version": "v1"
},
{
"created": "Thu, 4 Dec 2008 10:59:37 GMT",
"version": "v2"
}
] | 2008-12-04 | [
[
"Stein",
"W. -D. R.",
""
]
] | In Kaluza derived theories the electromagnetic potential is interpreted as a part of the metric in a higher dimensional theory of gravity. Here we present a more Yang-Mills like unification of classical electromagnetism and gravity within five dimensions, where the electromagnetic potential is related to the connecion ... |
2106.04870 | Malik Al Matwi | Malik Matwi | Spin current in BF theory | 23 pages, accepted for publication on Physics | Physics 2021, 3(2), 427-448 | 10.3390/physics3020029 | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | In this paper, we introduce a current which we call spin current
corresponding to the variation of the matter action in BF theory with respect
to the spin connection $A$ which takes values in Lie algebra
$\mathfrak{so}(3,\mathbb{C})$ in self-dual formalism. For keeping the
constraint $DB^i=0$ satisfied, we suggest ad... | [
{
"created": "Wed, 9 Jun 2021 07:52:23 GMT",
"version": "v1"
},
{
"created": "Thu, 1 Jul 2021 13:36:57 GMT",
"version": "v2"
}
] | 2021-07-02 | [
[
"Matwi",
"Malik",
""
]
] | In this paper, we introduce a current which we call spin current corresponding to the variation of the matter action in BF theory with respect to the spin connection $A$ which takes values in Lie algebra $\mathfrak{so}(3,\mathbb{C})$ in self-dual formalism. For keeping the constraint $DB^i=0$ satisfied, we suggest addi... |
1607.04962 | Daniel Litim | Kevin Falls, Daniel F. Litim, Kostas Nikolakopoulos, and Christoph
Rahmede | On de Sitter solutions in asymptotically safe $f(R)$ theories | 27 pages, 11 figures, 3 tables. v2: explanations added, to appear
with CQG | null | 10.1088/1361-6382/aac440 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The availability of scaling solutions in renormalisation group improved
versions of cosmology are investigated in the high-energy limit. We adopt
$f(R)$-type models of quantum gravity which display an interacting ultraviolet
fixed point at shortest distances. Expanding the gravitational fixed point
action to very hig... | [
{
"created": "Mon, 18 Jul 2016 07:32:41 GMT",
"version": "v1"
},
{
"created": "Tue, 15 May 2018 10:28:21 GMT",
"version": "v2"
}
] | 2018-05-16 | [
[
"Falls",
"Kevin",
""
],
[
"Litim",
"Daniel F.",
""
],
[
"Nikolakopoulos",
"Kostas",
""
],
[
"Rahmede",
"Christoph",
""
]
] | The availability of scaling solutions in renormalisation group improved versions of cosmology are investigated in the high-energy limit. We adopt $f(R)$-type models of quantum gravity which display an interacting ultraviolet fixed point at shortest distances. Expanding the gravitational fixed point action to very high ... |
1905.10087 | Vladimir S. Manko | V.S. Manko, E. Ruiz, M.B. Sadovnikova | Binary systems of recoiling extreme Kerr black holes | 12 pages, 7 figures | null | 10.1016/j.physletb.2019.07.011 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In the present paper the repulsion of two extreme Kerr black holes arising
from their spin-spin interaction is analyzed within the framework of special
subfamilies of the well-known Kinnersley-Chitre solution. The binary
configurations of both equal and nonequal extreme repelling black holes are
considered.
| [
{
"created": "Fri, 24 May 2019 08:30:31 GMT",
"version": "v1"
}
] | 2019-09-04 | [
[
"Manko",
"V. S.",
""
],
[
"Ruiz",
"E.",
""
],
[
"Sadovnikova",
"M. B.",
""
]
] | In the present paper the repulsion of two extreme Kerr black holes arising from their spin-spin interaction is analyzed within the framework of special subfamilies of the well-known Kinnersley-Chitre solution. The binary configurations of both equal and nonequal extreme repelling black holes are considered. |
1701.00017 | Y. Jack Ng | Y. Jack Ng | Quantum Foam, Gravitational Thermodynamics, and the Dark Sector | 13 pages, 6 figures, to appear in the Proceedings of IARD 2016 (in
Journal of Physics: Conference Series), for a short version of this article,
see "Holographic theory of gravity and cosmology" (arXiv:1610.06236) | null | 10.1088/1742-6596/845/1/012001 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We use two simple independent gedankan experiments to show that the
holographic principle can be understood intuitively as having its origin in the
quantum fluctuations of spacetime. Applied to cosmology, this consideration
leads to a dynamical cosmological constant of the observed magnitude, a result
that can also b... | [
{
"created": "Fri, 30 Dec 2016 21:27:32 GMT",
"version": "v1"
}
] | 2017-06-28 | [
[
"Ng",
"Y. Jack",
""
]
] | We use two simple independent gedankan experiments to show that the holographic principle can be understood intuitively as having its origin in the quantum fluctuations of spacetime. Applied to cosmology, this consideration leads to a dynamical cosmological constant of the observed magnitude, a result that can also be ... |
gr-qc/0310044 | Theodore A. Jacobson | Christopher Eling and Ted Jacobson | Static post-Newtonian equivalence of GR and gravity with a dynamical
preferred frame | 13 pages; v.2: minor editing, signs corrected, version to appear in
PRD; v. 3: signs corrected in eqn (3) | Phys.Rev. D69 (2004) 064005 | 10.1103/PhysRevD.69.064005 | null | gr-qc astro-ph hep-th | null | A generally covariant extension of general relativity (GR) in which a
dynamical unit timelike vector field is coupled to the metric is studied in the
asymptotic weak field limit of spherically symmetric static solutions. The two
post-Newtonian parameters known as the Eddington-Robertson-Schiff parameters
are found to... | [
{
"created": "Tue, 7 Oct 2003 16:19:16 GMT",
"version": "v1"
},
{
"created": "Wed, 21 Jan 2004 15:34:19 GMT",
"version": "v2"
},
{
"created": "Sat, 28 Feb 2004 16:26:39 GMT",
"version": "v3"
}
] | 2009-11-10 | [
[
"Eling",
"Christopher",
""
],
[
"Jacobson",
"Ted",
""
]
] | A generally covariant extension of general relativity (GR) in which a dynamical unit timelike vector field is coupled to the metric is studied in the asymptotic weak field limit of spherically symmetric static solutions. The two post-Newtonian parameters known as the Eddington-Robertson-Schiff parameters are found to b... |
gr-qc/0507063 | Francisco Lobo | Francisco S. N. Lobo, Paulo Crawford | Stability analysis of dynamic thin shells | 19 pages, 11 figures, LaTeX2e, IOP style files. V2: Comments and
references added. This version to appear in Classical and Quantum Gravity | Class.Quant.Grav. 22 (2005) 4869-4886 | 10.1088/0264-9381/22/22/012 | null | gr-qc astro-ph hep-th | null | We analyze the stability of generic spherically symmetric thin shells to
linearized perturbations around static solutions. We include the momentum flux
term in the conservation identity, deduced from the ''ADM'' constraint and the
Lanczos equations. Following the Ishak-Lake analysis, we deduce a master
equation which... | [
{
"created": "Thu, 14 Jul 2005 16:27:16 GMT",
"version": "v1"
},
{
"created": "Thu, 6 Oct 2005 22:16:38 GMT",
"version": "v2"
}
] | 2009-11-11 | [
[
"Lobo",
"Francisco S. N.",
""
],
[
"Crawford",
"Paulo",
""
]
] | We analyze the stability of generic spherically symmetric thin shells to linearized perturbations around static solutions. We include the momentum flux term in the conservation identity, deduced from the ''ADM'' constraint and the Lanczos equations. Following the Ishak-Lake analysis, we deduce a master equation which d... |
1706.00431 | Robert R. Caldwell | R. R. Caldwell, C. Devulder, N. A. Maksimova | Gravitational Wave -- Gauge Field Dynamics | Awarded Fifth Prize in 2017 Gravity Research Foundation Essay Contest | null | 10.1142/S0218271817420056 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The dynamics of a gravitational wave propagating through a cosmic gauge field
are dramatically different than in vacuum. We show that a gravitational wave
acquires an effective mass, is birefringent, and its normal modes are a linear
combination of gravitational waves and gauge field excitations, leading to the
pheno... | [
{
"created": "Thu, 1 Jun 2017 18:00:02 GMT",
"version": "v1"
}
] | 2017-11-22 | [
[
"Caldwell",
"R. R.",
""
],
[
"Devulder",
"C.",
""
],
[
"Maksimova",
"N. A.",
""
]
] | The dynamics of a gravitational wave propagating through a cosmic gauge field are dramatically different than in vacuum. We show that a gravitational wave acquires an effective mass, is birefringent, and its normal modes are a linear combination of gravitational waves and gauge field excitations, leading to the phenome... |
2205.04773 | Aditya Sharma | Aditya Sharma, Kinjal Banerjee, Jishnu Bhattacharyya | de Sitterization via Kerr-Schild | Publication details updated. Results are unchanged | 2022, Physical Review D | 10.1103/PhysRevD.106.063518 | Vol. 106, No.6 | gr-qc hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Spatially homogeneous cosmological spacetimes, evolving in the presence of a
positive cosmological constant and matter satisfying some reasonable energy
conditions, typically approach the de Sitter geometry asymptotically (at least
locally). In this work, we propose an alternate way to characterize this
phenomena. We... | [
{
"created": "Tue, 10 May 2022 09:51:08 GMT",
"version": "v1"
},
{
"created": "Mon, 19 Sep 2022 06:43:14 GMT",
"version": "v2"
}
] | 2022-09-20 | [
[
"Sharma",
"Aditya",
""
],
[
"Banerjee",
"Kinjal",
""
],
[
"Bhattacharyya",
"Jishnu",
""
]
] | Spatially homogeneous cosmological spacetimes, evolving in the presence of a positive cosmological constant and matter satisfying some reasonable energy conditions, typically approach the de Sitter geometry asymptotically (at least locally). In this work, we propose an alternate way to characterize this phenomena. We f... |
1412.4761 | Stephen Green | Alex Buchel, Stephen R. Green, Luis Lehner, Steven L. Liebling | Conserved quantities and dual turbulent cascades in Anti-de Sitter
spacetime | 9 pages, 2 figures; V2: minor updates; V3: updates to match version
accepted for publication | Phys. Rev. D 91, 064026 (2015) | 10.1103/PhysRevD.91.064026 | null | gr-qc hep-th nlin.CD | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider the dynamics of a spherically symmetric massless scalar field
coupled to general relativity in Anti--de Sitter spacetime in the
small-amplitude limit. Within the context of our previously developed two time
framework (TTF) to study the leading self-gravitating effects, we demonstrate
the existence of two ... | [
{
"created": "Mon, 15 Dec 2014 20:54:34 GMT",
"version": "v1"
},
{
"created": "Fri, 26 Dec 2014 21:49:41 GMT",
"version": "v2"
},
{
"created": "Tue, 17 Feb 2015 16:26:19 GMT",
"version": "v3"
}
] | 2015-03-18 | [
[
"Buchel",
"Alex",
""
],
[
"Green",
"Stephen R.",
""
],
[
"Lehner",
"Luis",
""
],
[
"Liebling",
"Steven L.",
""
]
] | We consider the dynamics of a spherically symmetric massless scalar field coupled to general relativity in Anti--de Sitter spacetime in the small-amplitude limit. Within the context of our previously developed two time framework (TTF) to study the leading self-gravitating effects, we demonstrate the existence of two ne... |
0907.3838 | Yousef Bisabr | Yousef Bisabr | Solar System Constraints on a Cosmologically Viable $f(R)$ Theory | 10 pages, no figure, Accepted for publication in Physics Letters B | Phys.Lett.B683:96-100,2010 | 10.1016/j.physletb.2009.11.062 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Recently, a model $f(R)$ theory is proposed \cite{recent} which is
cosmologically viable and distinguishable from $\Lambda$CDM. We use chameleon
mechanism to investigate viability of the model in terms of Solar System
experiments.
| [
{
"created": "Wed, 22 Jul 2009 13:15:12 GMT",
"version": "v1"
},
{
"created": "Wed, 2 Dec 2009 16:46:45 GMT",
"version": "v2"
}
] | 2010-01-15 | [
[
"Bisabr",
"Yousef",
""
]
] | Recently, a model $f(R)$ theory is proposed \cite{recent} which is cosmologically viable and distinguishable from $\Lambda$CDM. We use chameleon mechanism to investigate viability of the model in terms of Solar System experiments. |
gr-qc/9712046 | Spiros Cotsakis | S. Cotsakis (Department of Mathematics, University of the Aegean) | Mathematical problems in higher order gravity and cosmology | 3 pages, LaTeX, talk presented at the Eighth Marcel Grossmann
Meeting, Jerousalem, June 22--27, 1997 | null | null | null | gr-qc | null | We discuss the issue of motivating the analysis of higher order gravity
theories and their cosmologies and introduce a rule which states that these
theories may be considered as a vehicle for testing whether certain properties
may be of relevance to quantum theory. We discuss the physicality issue arising
as a conseq... | [
{
"created": "Wed, 10 Dec 1997 14:46:34 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Cotsakis",
"S.",
"",
"Department of Mathematics, University of the Aegean"
]
] | We discuss the issue of motivating the analysis of higher order gravity theories and their cosmologies and introduce a rule which states that these theories may be considered as a vehicle for testing whether certain properties may be of relevance to quantum theory. We discuss the physicality issue arising as a conseque... |
1610.03400 | Yong Cai | Yong Cai, Youping Wan, Hai-Guang Li, Taotao Qiu, and Yun-Song Piao | The Effective Field Theory of nonsingular cosmology | 21 pages, 2 figures, published in JHEP | JHEP01(2017)090 | 10.1007/JHEP01(2017)090 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper, we explore the nonsingular cosmology within the framework of
the Effective Field Theory(EFT) of cosmological perturbations. Due to the
recently proved no-go theorem, any nonsingular cosmological models based on the
cubic Galileon suffer from pathologies. We show how the EFT could help us
clarify the or... | [
{
"created": "Tue, 11 Oct 2016 15:50:49 GMT",
"version": "v1"
},
{
"created": "Mon, 17 Oct 2016 13:32:23 GMT",
"version": "v2"
},
{
"created": "Sun, 22 Jan 2017 14:30:03 GMT",
"version": "v3"
}
] | 2017-01-24 | [
[
"Cai",
"Yong",
""
],
[
"Wan",
"Youping",
""
],
[
"Li",
"Hai-Guang",
""
],
[
"Qiu",
"Taotao",
""
],
[
"Piao",
"Yun-Song",
""
]
] | In this paper, we explore the nonsingular cosmology within the framework of the Effective Field Theory(EFT) of cosmological perturbations. Due to the recently proved no-go theorem, any nonsingular cosmological models based on the cubic Galileon suffer from pathologies. We show how the EFT could help us clarify the orig... |
1006.4439 | Shahar Hod | Shahar Hod | Relaxation dynamics of charged gravitational collapse | 5 pages | Phys.Lett.A374:2901,2010 | 10.1016/j.physleta.2010.05.052 | null | gr-qc astro-ph.HE hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study analytically the relaxation dynamics of charged test fields left
outside a newly born charged black hole. In particular, we obtain a simple
analytic expression for the fundamental quasinormal resonances of near-extremal
Reissner-Nordstr\"om black holes. The formula is expressed in terms of the
black-hole phy... | [
{
"created": "Wed, 23 Jun 2010 07:48:53 GMT",
"version": "v1"
}
] | 2011-04-07 | [
[
"Hod",
"Shahar",
""
]
] | We study analytically the relaxation dynamics of charged test fields left outside a newly born charged black hole. In particular, we obtain a simple analytic expression for the fundamental quasinormal resonances of near-extremal Reissner-Nordstr\"om black holes. The formula is expressed in terms of the black-hole physi... |
1404.4491 | Rabin Banerjee | Rabin Banerjee, Arpita Mitra, Pradip Mukherjee | A new formulation of non-relativistic diffeomorphism invariance | minor changes, new reference added, to appear in PLB | null | 10.1016/j.physletb.2014.09.004 | null | gr-qc cond-mat.other hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We provide a new formulation of nonrelativistic diffeomorphism invariance. It
is generated by localising the usual global Galilean Symmetry. The
correspondence with the type of diffeomorphism invariant models currently in
vogue in the theory of fractional quantum Hall effect has been discussed. Our
construction is sh... | [
{
"created": "Thu, 17 Apr 2014 11:18:52 GMT",
"version": "v1"
},
{
"created": "Wed, 3 Sep 2014 07:23:17 GMT",
"version": "v2"
},
{
"created": "Thu, 4 Sep 2014 09:56:51 GMT",
"version": "v3"
}
] | 2015-06-19 | [
[
"Banerjee",
"Rabin",
""
],
[
"Mitra",
"Arpita",
""
],
[
"Mukherjee",
"Pradip",
""
]
] | We provide a new formulation of nonrelativistic diffeomorphism invariance. It is generated by localising the usual global Galilean Symmetry. The correspondence with the type of diffeomorphism invariant models currently in vogue in the theory of fractional quantum Hall effect has been discussed. Our construction is show... |
gr-qc/9905054 | Kleidis Kostas | K. Kleidis, H. Varvoglis and D. B. Papadopoulos | Parametric resonant acceleration of particles by gravitational waves | LaTeX file, 16 pages | Class.Quant.Grav. 13 (1996) 2547-2562 | 10.1088/0264-9381/13/9/018 | null | gr-qc | null | We study the resonant interaction of charged particles with a gravitational
wave propagating in the non-empty interstellar space in the presence of a
uniform magnetic field. It is found that this interaction can be cast in the
form of a parametric resonance problem which, besides the main resonance,
allows for the ex... | [
{
"created": "Mon, 17 May 1999 08:03:55 GMT",
"version": "v1"
}
] | 2009-10-31 | [
[
"Kleidis",
"K.",
""
],
[
"Varvoglis",
"H.",
""
],
[
"Papadopoulos",
"D. B.",
""
]
] | We study the resonant interaction of charged particles with a gravitational wave propagating in the non-empty interstellar space in the presence of a uniform magnetic field. It is found that this interaction can be cast in the form of a parametric resonance problem which, besides the main resonance, allows for the exis... |
gr-qc/9903029 | Ion Cotaescu | Ion I. Cot\u{a}escu (The West University of Timi\c{s}oara, Romania) | Comment on the quantum modes of the scalar field on AdS_{d+1} spacetime | 8 pages, Latex | null | null | null | gr-qc | null | The problem of the quantum modes of the scalar free field on anti-de Sitter
backgrounds with an arbitrary number of space dimensions is considered. It is
shown that this problem can be solved by using the same quantum numbers as
those of the nonrelativistic oscillator and two parameters which give the
energy quanta a... | [
{
"created": "Mon, 8 Mar 1999 13:33:10 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Cotăescu",
"Ion I.",
"",
"The West University of Timişoara, Romania"
]
] | The problem of the quantum modes of the scalar free field on anti-de Sitter backgrounds with an arbitrary number of space dimensions is considered. It is shown that this problem can be solved by using the same quantum numbers as those of the nonrelativistic oscillator and two parameters which give the energy quanta and... |
1907.10059 | Shammi Tahura | Shammi Tahura, Kent Yagi, Zack Carson | Testing Gravity with Gravitational Waves from Binary Black Hole Mergers:
Contributions from Amplitude Corrections | v2: The third author has been added, which was accidentally missed in
the first submission; v3: matches the published version | Phys. Rev. D 100, 104001 (2019) | 10.1103/PhysRevD.100.104001 | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The detection of gravitational waves has offered us the opportunity to
explore the dynamical and strong-field regime of gravity. Because matched
filtering is more sensitive to variations in the gravitational waveform phase
than the amplitude, many tests of gravity with gravitational waves have been
carried out using ... | [
{
"created": "Tue, 23 Jul 2019 16:28:53 GMT",
"version": "v1"
},
{
"created": "Thu, 25 Jul 2019 16:17:39 GMT",
"version": "v2"
},
{
"created": "Sun, 29 Dec 2019 22:40:54 GMT",
"version": "v3"
}
] | 2020-01-01 | [
[
"Tahura",
"Shammi",
""
],
[
"Yagi",
"Kent",
""
],
[
"Carson",
"Zack",
""
]
] | The detection of gravitational waves has offered us the opportunity to explore the dynamical and strong-field regime of gravity. Because matched filtering is more sensitive to variations in the gravitational waveform phase than the amplitude, many tests of gravity with gravitational waves have been carried out using on... |
1605.08420 | Avneet Singh | Avneet Singh | Gravitational wave transient signal emission via Ekman pumping in
neutron stars during post-glitch relaxation phase | 24 pages, 11 figures; v1: initial submission; v2: internal review;
v3: journal review; v4: copyedited version; v5-6: minor typos corrected and
references updated; v7 (final): corrections in metadata | Phys. Rev. D 95, 024022 (2017) | 10.1103/PhysRevD.95.024022 | LIGO Document LIGO-P1600091 | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Glitches in the rotational frequency of a spinning neutron star could be
promising sources of gravitational wave signals lasting between a few
microseconds to a few weeks. The emitted signals and their properties depend
upon the internal properties of the neutron star. In neutron stars, the most
important physical pr... | [
{
"created": "Thu, 26 May 2016 19:27:59 GMT",
"version": "v1"
},
{
"created": "Sun, 29 May 2016 20:43:10 GMT",
"version": "v2"
},
{
"created": "Mon, 5 Sep 2016 13:00:48 GMT",
"version": "v3"
},
{
"created": "Wed, 21 Dec 2016 12:47:00 GMT",
"version": "v4"
},
{
"cr... | 2017-10-11 | [
[
"Singh",
"Avneet",
""
]
] | Glitches in the rotational frequency of a spinning neutron star could be promising sources of gravitational wave signals lasting between a few microseconds to a few weeks. The emitted signals and their properties depend upon the internal properties of the neutron star. In neutron stars, the most important physical prop... |
1607.07312 | Krzysztof A. Meissner | Krzysztof A. Meissner and Hermann Nicolai | Conformal Anomalies and Gravitational Waves | 4 pages | null | 10.1016/j.physletb.2017.06.031 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We argue that the presence of conformal anomalies in gravitational theories
can lead to observable modifications to Einstein's equations via the induced
anomalous effective actions, whose non-localities can overwhelm the smallness
of the Planck scale. The fact that no such effects have been seen in recent
cosmologica... | [
{
"created": "Mon, 25 Jul 2016 15:18:06 GMT",
"version": "v1"
},
{
"created": "Sun, 28 Aug 2016 16:12:31 GMT",
"version": "v2"
}
] | 2017-06-21 | [
[
"Meissner",
"Krzysztof A.",
""
],
[
"Nicolai",
"Hermann",
""
]
] | We argue that the presence of conformal anomalies in gravitational theories can lead to observable modifications to Einstein's equations via the induced anomalous effective actions, whose non-localities can overwhelm the smallness of the Planck scale. The fact that no such effects have been seen in recent cosmological ... |
gr-qc/9404008 | Paulo Rodrigues Lima Vargas Moniz | A.D.Y. Cheng, P.D. D'Eath and P.R.L.V. Moniz | Quantization of the Bianchi type-IX model in supergravity with a
cosmological constant | 17 pages report DAMTP R93/35 | Phys.Rev. D49 (1994) 5246-5251 | 10.1103/PhysRevD.49.5246 | null | gr-qc | null | Diagonal Bianchi type-IX models are studied in the quantum theory of $ N = 1
$ supergravity with a cosmological constant. It is shown, by imposing the
supersymmetry and Lorentz quantum constraints, that there are no physical
quantum states in this model. The $ k = + 1 $ Friedmann model in supergravity
with cosmologic... | [
{
"created": "Wed, 6 Apr 1994 16:15:54 GMT",
"version": "v1"
}
] | 2009-10-22 | [
[
"Cheng",
"A. D. Y.",
""
],
[
"D'Eath",
"P. D.",
""
],
[
"Moniz",
"P. R. L. V.",
""
]
] | Diagonal Bianchi type-IX models are studied in the quantum theory of $ N = 1 $ supergravity with a cosmological constant. It is shown, by imposing the supersymmetry and Lorentz quantum constraints, that there are no physical quantum states in this model. The $ k = + 1 $ Friedmann model in supergravity with cosmological... |
1106.5543 | Carlos Augusto Romero Filho | C. Romero, J. B. Fonseca-Neto and M. L. Pucheu | General Relativity and Weyl Frames | Talk presented at the 8th Alexander Friedmann International Seminar
on General Relativity and Gravitation (Rio de Janeiro - 2011) | null | 10.1142/S2010194511001115 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present the general theory of relativity in the language of a
non-Riemannian geometry, namely, Weyl geometry. We show that the new
mathematical formalism may lead to different pictures of the same gravitational
phenomena, by making use of the concept of Weyl frames. We show that, in this
formalism, it is possible ... | [
{
"created": "Tue, 28 Jun 2011 00:25:27 GMT",
"version": "v1"
}
] | 2015-05-28 | [
[
"Romero",
"C.",
""
],
[
"Fonseca-Neto",
"J. B.",
""
],
[
"Pucheu",
"M. L.",
""
]
] | We present the general theory of relativity in the language of a non-Riemannian geometry, namely, Weyl geometry. We show that the new mathematical formalism may lead to different pictures of the same gravitational phenomena, by making use of the concept of Weyl frames. We show that, in this formalism, it is possible to... |
2301.09797 | Yusuke Manita | Yusuke Manita, Sirachak Panpanich and Rampei Kimura | Viable massive gravity without nonlinear screening | 8 pages | null | null | KUNS-2951 | gr-qc astro-ph.CO hep-th | http://creativecommons.org/licenses/by/4.0/ | We study nonlinear effects of perturbations around a cosmological background
in projected massive gravity, which admits self-accelerating solutions in an
open FLRW universe. Using the zero-curvature scaling limit, we derive nonlinear
equations containing all the relevant terms on subhorizon scales. We find that
the s... | [
{
"created": "Tue, 24 Jan 2023 03:19:39 GMT",
"version": "v1"
}
] | 2023-01-25 | [
[
"Manita",
"Yusuke",
""
],
[
"Panpanich",
"Sirachak",
""
],
[
"Kimura",
"Rampei",
""
]
] | We study nonlinear effects of perturbations around a cosmological background in projected massive gravity, which admits self-accelerating solutions in an open FLRW universe. Using the zero-curvature scaling limit, we derive nonlinear equations containing all the relevant terms on subhorizon scales. We find that the sol... |
gr-qc/9506009 | Imtjj51 | F.J.de Urries and J.Julve | Degrees of Freedom of Arbitrarily Higher-Derivative Field Theories | 24 pages, plain TEX | null | null | preprint IMAFF-95/36 | gr-qc hep-th | null | As an example of what happens with physically relevant theories like
effective gravity, we consider the covariant relativistic theory of a scalar
field of arbitrarily higher differential order. A procedure based on the
Legendre transformation and suitable field redefinitions allows to recast it as
a theory of second ... | [
{
"created": "Mon, 5 Jun 1995 17:16:43 GMT",
"version": "v1"
},
{
"created": "Tue, 6 Jun 1995 14:30:58 GMT",
"version": "v2"
}
] | 2008-02-03 | [
[
"de Urries",
"F. J.",
""
],
[
"Julve",
"J.",
""
]
] | As an example of what happens with physically relevant theories like effective gravity, we consider the covariant relativistic theory of a scalar field of arbitrarily higher differential order. A procedure based on the Legendre transformation and suitable field redefinitions allows to recast it as a theory of second or... |
gr-qc/9905073 | Bodo Geyer | Bodo Geyer, Sergei D. Odintsov and Sergio Zerbini | Inflationary Brans-Dicke Quantum Universe | 10 pages, 3 additional references | Phys.Lett.B460:58-62,1999 | 10.1016/S0370-2693(99)00751-0 | null | gr-qc hep-th | null | The formulation of Brans-Dicke (BD) gravity with matter in the Einstein frame
is realized as Einstein gravity with dilaton and dilaton coupled matter. We
calculate the one-loop 4d anomaly-induced effective action due to N dilaton-
coupled massless fermions on the time-dependent conformally flat background
with non-tr... | [
{
"created": "Thu, 20 May 1999 10:39:20 GMT",
"version": "v1"
},
{
"created": "Wed, 26 May 1999 13:34:34 GMT",
"version": "v2"
}
] | 2009-09-17 | [
[
"Geyer",
"Bodo",
""
],
[
"Odintsov",
"Sergei D.",
""
],
[
"Zerbini",
"Sergio",
""
]
] | The formulation of Brans-Dicke (BD) gravity with matter in the Einstein frame is realized as Einstein gravity with dilaton and dilaton coupled matter. We calculate the one-loop 4d anomaly-induced effective action due to N dilaton- coupled massless fermions on the time-dependent conformally flat background with non-triv... |
1503.07581 | Bertrand Chauvineau | Bertrand Chauvineau, Davi C. Rodrigues, J\'ulio C. Fabris | Scalar-tensor theories with an external scalar | 21 pages, 3 figures, revtex To appear in General Relativity and
Gravitation | null | 10.1007/s10714-016-2075-9 | null | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Scalar-tensor (ST) gravity is considered in the case where the scalar is an
external field. We show that General Relativity (GR) and usual ST gravity are
particular cases of the External Scalar-Tensor (EST) gravity. It is shown with
a particular cosmological example that it is possible to join a part of a GR
solution... | [
{
"created": "Wed, 25 Mar 2015 23:44:36 GMT",
"version": "v1"
},
{
"created": "Fri, 29 Jan 2016 12:19:06 GMT",
"version": "v2"
},
{
"created": "Mon, 23 May 2016 16:28:55 GMT",
"version": "v3"
}
] | 2016-06-08 | [
[
"Chauvineau",
"Bertrand",
""
],
[
"Rodrigues",
"Davi C.",
""
],
[
"Fabris",
"Júlio C.",
""
]
] | Scalar-tensor (ST) gravity is considered in the case where the scalar is an external field. We show that General Relativity (GR) and usual ST gravity are particular cases of the External Scalar-Tensor (EST) gravity. It is shown with a particular cosmological example that it is possible to join a part of a GR solution t... |
1110.0173 | Paulo Pitanga | P. Pitanga | G\"odel's universe and the chronology protection conjecture | Added references; conclusions enlarged | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present a solution for the geodesic motion in G\"odel's universe that
provides a particular proof of Hawking's chronology protection conjecture in
three-dimensional gravity theory. The solution is based upon the fact that the
group of the automorphisms of the Heisenberg motion group H1\timesU(1), modulo
discrete s... | [
{
"created": "Sun, 2 Oct 2011 11:50:02 GMT",
"version": "v1"
},
{
"created": "Mon, 10 Oct 2011 13:03:28 GMT",
"version": "v2"
},
{
"created": "Tue, 11 Oct 2011 23:05:36 GMT",
"version": "v3"
},
{
"created": "Mon, 17 Oct 2011 16:13:46 GMT",
"version": "v4"
},
{
"cr... | 2015-03-19 | [
[
"Pitanga",
"P.",
""
]
] | We present a solution for the geodesic motion in G\"odel's universe that provides a particular proof of Hawking's chronology protection conjecture in three-dimensional gravity theory. The solution is based upon the fact that the group of the automorphisms of the Heisenberg motion group H1\timesU(1), modulo discrete sub... |
gr-qc/0307112 | Jeff Murugan | George F.R. Ellis, Jeff Murugan and Christos G. Tsagas | The Emergent Universe: An Explicit Construction | 10 pages, 6 eps figures, revtex4. Discussion on initial conditions
improved and typos corrected. This version to appear in Classical and Quantum
Gravity | Class.Quant.Grav.21:233-250,2004 | 10.1088/0264-9381/21/1/016 | null | gr-qc astro-ph | null | We provide a realisation of a singularity-free inflationary universe in the
form of a simple cosmological model dominated at early times by a single
minimally coupled scalar field with a physically based potential. The universe
starts asymptotically from an initial Einstein static state, which may be large
enough to ... | [
{
"created": "Mon, 28 Jul 2003 12:45:14 GMT",
"version": "v1"
},
{
"created": "Thu, 6 Nov 2003 20:21:12 GMT",
"version": "v2"
}
] | 2008-11-26 | [
[
"Ellis",
"George F. R.",
""
],
[
"Murugan",
"Jeff",
""
],
[
"Tsagas",
"Christos G.",
""
]
] | We provide a realisation of a singularity-free inflationary universe in the form of a simple cosmological model dominated at early times by a single minimally coupled scalar field with a physically based potential. The universe starts asymptotically from an initial Einstein static state, which may be large enough to av... |
0904.1715 | Chris Van Den Broeck | Chris Van Den Broeck, Duncan A. Brown, Thomas Cokelaer, Ian Harry,
Gareth Jones, B.S. Sathyaprakash, Hideyuki Tagoshi, and Hirotaka Takahashi | Template banks to search for compact binaries with spinning components
in gravitational wave data | 11 pages, 3 figures | Phys.Rev.D80:024009,2009 | 10.1103/PhysRevD.80.024009 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Gravitational waves from coalescing compact binaries are one of the most
promising sources for detectors such as LIGO, Virgo and GEO600. If the
components of the binary posess significant angular momentum (spin), as is
likely to be the case if one component is a black hole, spin-induced precession
of a binary's orbit... | [
{
"created": "Fri, 10 Apr 2009 18:08:31 GMT",
"version": "v1"
}
] | 2009-09-02 | [
[
"Broeck",
"Chris Van Den",
""
],
[
"Brown",
"Duncan A.",
""
],
[
"Cokelaer",
"Thomas",
""
],
[
"Harry",
"Ian",
""
],
[
"Jones",
"Gareth",
""
],
[
"Sathyaprakash",
"B. S.",
""
],
[
"Tagoshi",
"Hideyuki",
""
... | Gravitational waves from coalescing compact binaries are one of the most promising sources for detectors such as LIGO, Virgo and GEO600. If the components of the binary posess significant angular momentum (spin), as is likely to be the case if one component is a black hole, spin-induced precession of a binary's orbital... |
gr-qc/0403104 | Zet Gheorghe | G. Zet, C. D. Oprisan, S. Babeti | Solutions without singularities in gauge theory of gravitation | 9 pages, no figures | Int.J.Mod.Phys. C15 (2004) 1031-1038 | 10.1142/S0129183104006443 | null | gr-qc | null | A de-Sitter gauge theory of the gravitational field is developed using a
spherical symmetric Minkowski space-time as base manifold. The gravitational
field is described by gauge potentials and the mathematical structure of the
underlying space-time is not affected by physical events. The field equations
are written a... | [
{
"created": "Thu, 25 Mar 2004 12:57:10 GMT",
"version": "v1"
}
] | 2009-11-10 | [
[
"Zet",
"G.",
""
],
[
"Oprisan",
"C. D.",
""
],
[
"Babeti",
"S.",
""
]
] | A de-Sitter gauge theory of the gravitational field is developed using a spherical symmetric Minkowski space-time as base manifold. The gravitational field is described by gauge potentials and the mathematical structure of the underlying space-time is not affected by physical events. The field equations are written and... |
gr-qc/0012014 | B. S. Sathyaprakash | B.S. Sathyaprakash | The gravitational wave symphony of the Universe | Proceedings of the International Conference on Gravitation and
Cosmology, held at IIT Kharagpur, Jan 2000 (to appear in Pramana J. Phys.) | Pramana 56:457-475,2001 | 10.1007/s12043-001-0096-7 | null | gr-qc | null | The new millennium will see the upcoming of several ground-based
interferometric gravitational wave antennas. Within the next decade a
space-based antenna may also begin to observe the distant Universe. These
gravitational wave detectors will together operate as a network taking data
continuously for several years, w... | [
{
"created": "Mon, 4 Dec 2000 22:58:19 GMT",
"version": "v1"
},
{
"created": "Wed, 10 Jul 2002 21:58:38 GMT",
"version": "v2"
}
] | 2009-10-31 | [
[
"Sathyaprakash",
"B. S.",
""
]
] | The new millennium will see the upcoming of several ground-based interferometric gravitational wave antennas. Within the next decade a space-based antenna may also begin to observe the distant Universe. These gravitational wave detectors will together operate as a network taking data continuously for several years, wat... |
1901.04658 | Hayato Motohashi | Hayato Motohashi, Masato Minamitsuji | Exact black hole solutions in shift-symmetric quadratic degenerate
higher-order scalar-tensor theories | 15 pages; reference added; matches published version | Phys. Rev. D 99, 064040 (2019) | 10.1103/PhysRevD.99.064040 | YITP-19-01 | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We find various exact black hole solutions in the shift-symmetric subclass of
the quadratic degenerate higher-order scalar-tensor (DHOST) theories with
linearly time dependent scalar field whose kinetic term is constant. The exact
solutions are the Schwarzschild and Schwarzschild-(anti-)de Sitter solutions,
and the S... | [
{
"created": "Tue, 15 Jan 2019 04:45:44 GMT",
"version": "v1"
},
{
"created": "Tue, 22 Jan 2019 08:23:49 GMT",
"version": "v2"
},
{
"created": "Wed, 10 Apr 2019 12:50:41 GMT",
"version": "v3"
}
] | 2019-04-11 | [
[
"Motohashi",
"Hayato",
""
],
[
"Minamitsuji",
"Masato",
""
]
] | We find various exact black hole solutions in the shift-symmetric subclass of the quadratic degenerate higher-order scalar-tensor (DHOST) theories with linearly time dependent scalar field whose kinetic term is constant. The exact solutions are the Schwarzschild and Schwarzschild-(anti-)de Sitter solutions, and the Sch... |
1703.02372 | Kimet Jusufi | Kimet Jusufi, Ali Ovgun, Gordana Apostolovska | Tunneling of Massive/Massless Bosons From the Apparent Horizon of FRW
Universe | 7 pages, accepted for publication in Advances in High Energy Physics | Advances in High Energy Physics, vol. 2017, Article ID 8798657, 7
pages, 2017 | 10.1155/2017/8798657 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this article we investigate the Hawking radiation of vector particles from
the apparent horizon of a Friedmann-Robertson-Walker (FRW) universe in the
framework of quantum tunneling method. Furthermore we use Proca equation, a
relativistic wave equation for a massive/massless spin-1 particle (massless
$\gamma$ phot... | [
{
"created": "Tue, 7 Mar 2017 13:36:33 GMT",
"version": "v1"
},
{
"created": "Mon, 22 May 2017 16:34:02 GMT",
"version": "v2"
}
] | 2017-07-04 | [
[
"Jusufi",
"Kimet",
""
],
[
"Ovgun",
"Ali",
""
],
[
"Apostolovska",
"Gordana",
""
]
] | In this article we investigate the Hawking radiation of vector particles from the apparent horizon of a Friedmann-Robertson-Walker (FRW) universe in the framework of quantum tunneling method. Furthermore we use Proca equation, a relativistic wave equation for a massive/massless spin-1 particle (massless $\gamma$ photon... |
2207.02835 | Dipayan Mukherjee | Dipayan Mukherjee, H. K. Jassal, Kinjalk Lochan | Bouncing and collapsing universes dual to late-time cosmological models | 36 pages, 12 figures, minor changes | Eur. Phys. J. C 84, 318 (2024) | 10.1140/epjc/s10052-024-12673-1 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We use the Jordan frame-Einstein frame correspondence to explore dual
universes with contrasting cosmological evolutions. We study the mapping
between Einstein and Jordan frames where the Einstein frame universe describes
the late-time evolution of the physical universe, which is driven by dark
energy and non-relativ... | [
{
"created": "Wed, 6 Jul 2022 17:47:38 GMT",
"version": "v1"
},
{
"created": "Thu, 21 Jul 2022 05:56:12 GMT",
"version": "v2"
},
{
"created": "Sun, 25 Dec 2022 12:47:57 GMT",
"version": "v3"
},
{
"created": "Wed, 27 Mar 2024 15:23:54 GMT",
"version": "v4"
}
] | 2024-03-28 | [
[
"Mukherjee",
"Dipayan",
""
],
[
"Jassal",
"H. K.",
""
],
[
"Lochan",
"Kinjalk",
""
]
] | We use the Jordan frame-Einstein frame correspondence to explore dual universes with contrasting cosmological evolutions. We study the mapping between Einstein and Jordan frames where the Einstein frame universe describes the late-time evolution of the physical universe, which is driven by dark energy and non-relativis... |
1904.08012 | Antony Speranza | Antony J. Speranza | Geometrical tools for embedding fields, submanifolds, and foliations | 43 + 18 pages, 2 figures, v2: updated discussion of normal bundle
topology, references added | null | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Embedding fields provide a way of coupling a background structure to a theory
while preserving diffeomorphism-invariance. Examples of such background
structures include embedded submanifolds, such as branes; boundaries of local
subregions, such as the Ryu-Takayanagi surface in holography; and foliations,
which appear... | [
{
"created": "Tue, 16 Apr 2019 23:22:25 GMT",
"version": "v1"
},
{
"created": "Fri, 26 Apr 2019 03:38:30 GMT",
"version": "v2"
}
] | 2019-04-29 | [
[
"Speranza",
"Antony J.",
""
]
] | Embedding fields provide a way of coupling a background structure to a theory while preserving diffeomorphism-invariance. Examples of such background structures include embedded submanifolds, such as branes; boundaries of local subregions, such as the Ryu-Takayanagi surface in holography; and foliations, which appear i... |
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