id stringlengths 9 16 | title stringlengths 1 382 | authors stringlengths 3 62.8k | categories stringlengths 5 125 | URL stringlengths 31 38 | update_date stringlengths 10 10 | abstract stringlengths 3 6.09k |
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0704.0001 | Calculation of prompt diphoton production cross sections at Tevatron and LHC energies | C. Bal\'azs, E. L. Berger, P. M. Nadolsky, C.-P. Yuan | hep-ph | https://arxiv.org/abs/0704.0001 | 2008-11-26 | A fully differential calculation in perturbative quantum chromodynamics is presented for the production of massive photon pairs at hadron colliders. All next-to-leading order perturbative contributions from quark-antiquark, gluon-(anti)quark, and gluon-gluon subprocesses are included, as well as all-orders resummation ... |
0704.0002 | Sparsity-certifying Graph Decompositions | Ileana Streinu and Louis Theran | math.CO cs.CG | https://arxiv.org/abs/0704.0002 | 2008-12-13 | We describe a new algorithm, the $(k,\ell)$-pebble game with colors, and use it obtain a characterization of the family of $(k,\ell)$-sparse graphs and algorithmic solutions to a family of problems concerning tree decompositions of graphs. Special instances of sparse graphs appear in rigidity theory and have received i... |
0704.0003 | The evolution of the Earth-Moon system based on the dark matter field fluid model | Hongjun Pan | physics.gen-ph | https://arxiv.org/abs/0704.0003 | 2008-01-13 | The evolution of Earth-Moon system is described by the dark matter field fluid model proposed in the Meeting of Division of Particle and Field 2004, American Physical Society. The current behavior of the Earth-Moon system agrees with this model very well and the general pattern of the evolution of the Moon-Earth system... |
0704.0004 | A determinant of Stirling cycle numbers counts unlabeled acyclic single-source automata | David Callan | math.CO | https://arxiv.org/abs/0704.0004 | 2007-05-23 | We show that a determinant of Stirling cycle numbers counts unlabeled acyclic single-source automata. The proof involves a bijection from these automata to certain marked lattice paths and a sign-reversing involution to evaluate the determinant. |
0704.0005 | From dyadic $\Lambda_{\alpha}$ to $\Lambda_{\alpha}$ | Wael Abu-Shammala and Alberto Torchinsky | math.CA math.FA | https://arxiv.org/abs/0704.0005 | 2013-10-15 | In this paper we show how to compute the $\Lambda_{\alpha}$ norm, $\alpha\ge 0$, using the dyadic grid. This result is a consequence of the description of the Hardy spaces $H^p(R^N)$ in terms of dyadic and special atoms. |
0704.0006 | Bosonic characters of atomic Cooper pairs across resonance | Y. H. Pong and C. K. Law | cond-mat.mes-hall | https://arxiv.org/abs/0704.0006 | 2015-05-13 | We study the two-particle wave function of paired atoms in a Fermi gas with tunable interaction strengths controlled by Feshbach resonance. The Cooper pair wave function is examined for its bosonic characters, which is quantified by the correction of Bose enhancement factor associated with the creation and annihilation... |
0704.0007 | Polymer Quantum Mechanics and its Continuum Limit | Alejandro Corichi, Tatjana Vukasinac and Jose A. Zapata | gr-qc | https://arxiv.org/abs/0704.0007 | 2008-11-26 | A rather non-standard quantum representation of the canonical commutation relations of quantum mechanics systems, known as the polymer representation has gained some attention in recent years, due to its possible relation with Planck scale physics. In particular, this approach has been followed in a symmetric sector of... |
0704.0008 | Numerical solution of shock and ramp compression for general material properties | Damian C. Swift | cond-mat.mtrl-sci | https://arxiv.org/abs/0704.0008 | 2009-02-05 | A general formulation was developed to represent material models for applications in dynamic loading. Numerical methods were devised to calculate response to shock and ramp compression, and ramp decompression, generalizing previous solutions for scalar equations of state. The numerical methods were found to be flexible... |
0704.0009 | The Spitzer c2d Survey of Large, Nearby, Insterstellar Clouds. IX. The Serpens YSO Population As Observed With IRAC and MIPS | Paul Harvey, Bruno Merin, Tracy L. Huard, Luisa M. Rebull, Nicholas Chapman, Neal J. Evans II, Philip C. Myers | astro-ph | https://arxiv.org/abs/0704.0009 | 2010-03-18 | We discuss the results from the combined IRAC and MIPS c2d Spitzer Legacy observations of the Serpens star-forming region. In particular we present a set of criteria for isolating bona fide young stellar objects, YSO's, from the extensive background contamination by extra-galactic objects. We then discuss the propertie... |
0704.0010 | Partial cubes: structures, characterizations, and constructions | Sergei Ovchinnikov | math.CO | https://arxiv.org/abs/0704.0010 | 2007-05-23 | Partial cubes are isometric subgraphs of hypercubes. Structures on a graph defined by means of semicubes, and Djokovi\'{c}'s and Winkler's relations play an important role in the theory of partial cubes. These structures are employed in the paper to characterize bipartite graphs and partial cubes of arbitrary dimension... |
0704.0011 | Computing genus 2 Hilbert-Siegel modular forms over $\Q(\sqrt{5})$ via the Jacquet-Langlands correspondence | Clifton Cunningham and Lassina Dembele | math.NT math.AG | https://arxiv.org/abs/0704.0011 | 2008-08-20 | In this paper we present an algorithm for computing Hecke eigensystems of Hilbert-Siegel cusp forms over real quadratic fields of narrow class number one. We give some illustrative examples using the quadratic field $\Q(\sqrt{5})$. In those examples, we identify Hilbert-Siegel eigenforms that are possible lifts from Hi... |
0704.0012 | Distribution of integral Fourier Coefficients of a Modular Form of Half Integral Weight Modulo Primes | Dohoon Choi | math.NT | https://arxiv.org/abs/0704.0012 | 2007-05-23 | Recently, Bruinier and Ono classified cusp forms $f(z) := \sum_{n=0}^{\infty} a_f(n)q ^n \in S_{\lambda+1/2}(\Gamma_0(N),\chi)\cap \mathbb{Z}[[q]]$ that does not satisfy a certain distribution property for modulo odd primes $p$. In this paper, using Rankin-Cohen Bracket, we extend this result to modular forms of half i... |
0704.0013 | $p$-adic Limit of Weakly Holomorphic Modular Forms of Half Integral Weight | Dohoon Choi and YoungJu Choie | math.NT | https://arxiv.org/abs/0704.0013 | 2008-05-26 | Serre obtained the p-adic limit of the integral Fourier coefficient of modular forms on $SL_2(\mathbb{Z})$ for $p=2,3,5,7$. In this paper, we extend the result of Serre to weakly holomorphic modular forms of half integral weight on $\Gamma_{0}(4N)$ for $N=1,2,4$. A proof is based on linear relations among Fourier coeff... |
0704.0014 | Iterated integral and the loop product | Koichi Fujii | math.CA math.AT | https://arxiv.org/abs/0704.0014 | 2009-09-29 | In this article we discuss a relation between the string topology and differential forms based on the theory of Chen's iterated integrals and the cyclic bar complex. |
0704.0015 | Fermionic superstring loop amplitudes in the pure spinor formalism | Christian Stahn | hep-th | https://arxiv.org/abs/0704.0015 | 2009-11-13 | The pure spinor formulation of the ten-dimensional superstring leads to manifestly supersymmetric loop amplitudes, expressed as integrals in pure spinor superspace. This paper explores different methods to evaluate these integrals and then uses them to calculate the kinematic factors of the one-loop and two-loop massle... |
0704.0016 | Lifetime of doubly charmed baryons | Chao-Hsi Chang, Tong Li, Xue-Qian Li and Yu-Ming Wang | hep-ph | https://arxiv.org/abs/0704.0016 | 2008-12-18 | In this work, we evaluate the lifetimes of the doubly charmed baryons $\Xi_{cc}^{+}$, $\Xi_{cc}^{++}$ and $\Omega_{cc}^{+}$. We carefully calculate the non-spectator contributions at the quark level where the Cabibbo-suppressed diagrams are also included. The hadronic matrix elements are evaluated in the simple non-rel... |
0704.0017 | Spectroscopic Observations of the Intermediate Polar EX Hydrae in Quiescence | Nceba Mhlahlo, David H. Buckley, Vikram S. Dhillon, Steven B. Potter, Brian Warner and Patric A. Woudt | astro-ph | https://arxiv.org/abs/0704.0017 | 2009-06-23 | Results from spectroscopic observations of the Intermediate Polar (IP) EX Hya in quiescence during 1991 and 2001 are presented. Spin-modulated radial velocities consistent with an outer disc origin were detected for the first time in an IP. The spin pulsation was modulated with velocities near ~500-600 km/s. These velo... |
0704.0018 | In quest of a generalized Callias index theorem | Andreas Gustavsson | hep-th | https://arxiv.org/abs/0704.0018 | 2007-05-23 | We give a prescription for how to compute the Callias index, using as regulator an exponential function. We find agreement with old results in all odd dimensions. We show that the problem of computing the dimension of the moduli space of self-dual strings can be formulated as an index problem in even-dimensional (loop-... |
0704.0019 | Approximation for extinction probability of the contact process based on the Gr\"obner basis | Norio Konno | math.PR math.AG | https://arxiv.org/abs/0704.0019 | 2007-06-23 | In this note we give a new method for getting a series of approximations for the extinction probability of the one-dimensional contact process by using the Gr\"obner basis. |
0704.0020 | Measurement of the Hadronic Form Factor in D0 --> K- e+ nue Decays | The BABAR Collaboration, B. Aubert, et al | hep-ex | https://arxiv.org/abs/0704.0020 | 2015-06-30 | The shape of the hadronic form factor f+(q2) in the decay D0 --> K- e+ nue has been measured in a model independent analysis and compared with theoretical calculations. We use 75 fb(-1) of data recorded by the BABAR detector at the PEPII electron-positron collider. The corresponding decay branching fraction, relative t... |
0704.0021 | Molecular Synchronization Waves in Arrays of Allosterically Regulated Enzymes | Vanessa Casagrande, Yuichi Togashi, Alexander S. Mikhailov | nlin.PS physics.chem-ph q-bio.MN | https://arxiv.org/abs/0704.0021 | 2007-07-24 | Spatiotemporal pattern formation in a product-activated enzymic reaction at high enzyme concentrations is investigated. Stochastic simulations show that catalytic turnover cycles of individual enzymes can become coherent and that complex wave patterns of molecular synchronization can develop. The analysis based on the ... |
0704.0022 | Stochastic Lie group integrators | Simon J.A. Malham and Anke Wiese | math.NA | https://arxiv.org/abs/0704.0022 | 2007-10-16 | We present Lie group integrators for nonlinear stochastic differential equations with non-commutative vector fields whose solution evolves on a smooth finite dimensional manifold. Given a Lie group action that generates transport along the manifold, we pull back the stochastic flow on the manifold to the Lie group via ... |
0704.0023 | ALMA as the ideal probe of the solar chromosphere | M. A. Loukitcheva, S. K. Solanki and S. White | astro-ph | https://arxiv.org/abs/0704.0023 | 2009-06-23 | The very nature of the solar chromosphere, its structuring and dynamics, remains far from being properly understood, in spite of intensive research. Here we point out the potential of chromospheric observations at millimeter wavelengths to resolve this long-standing problem. Computations carried out with a sophisticate... |
0704.0024 | Formation of quasi-solitons in transverse confined ferromagnetic film media | A.A. Serga, M. Kostylev, and B. Hillebrands | nlin.PS | https://arxiv.org/abs/0704.0024 | 2007-05-30 | The formation of quasi-2D spin-wave waveforms in longitudinally magnetized stripes of ferrimagnetic film was observed by using time- and space-resolved Brillouin light scattering technique. In the linear regime it was found that the confinement decreases the amplitude of dynamic magnetization near the lateral stripe ed... |
0704.0025 | Spectroscopic Properties of Polarons in Strongly Correlated Systems by Exact Diagrammatic Monte Carlo Method | A. S. Mishchenko (1 and 2) and N. Nagaosa (1 and 3) ((1) CREST, Japan Science and Technology Agency, (2) Russian Research Centre ``Kurchatov Institute'', (3) The University of Tokyo) | cond-mat.str-el cond-mat.stat-mech | https://arxiv.org/abs/0704.0025 | 2015-05-13 | We present recent advances in understanding of the ground and excited states of the electron-phonon coupled systems obtained by novel methods of Diagrammatic Monte Carlo and Stochastic Optimization, which enable the approximation-free calculation of Matsubara Green function in imaginary times and perform unbiased analy... |
0704.0026 | Placeholder Substructures II: Meta-Fractals, Made of Box-Kites, Fill Infinite-Dimensional Skies | Robert P. C. de Marrais | math.RA | https://arxiv.org/abs/0704.0026 | 2007-11-22 | Zero-divisors (ZDs) derived by Cayley-Dickson Process (CDP) from N-dimensional hypercomplex numbers (N a power of 2, at least 4) can represent singularities and, as N approaches infinite, fractals -- and thereby,scale-free networks. Any integer greater than 8 and not a power of 2 generates a meta-fractal or "Sky" when ... |
0704.0027 | Filling-Factor-Dependent Magnetophonon Resonance in Graphene | M. O. Goerbig, J.-N. Fuchs, K. Kechedzhi, Vladimir I. Fal'ko | cond-mat.mes-hall | https://arxiv.org/abs/0704.0027 | 2009-09-24 | We describe a peculiar fine structure acquired by the in-plane optical phonon at the Gamma-point in graphene when it is brought into resonance with one of the inter-Landau-level transitions in this material. The effect is most pronounced when this lattice mode (associated with the G-band in graphene Raman spectrum) is ... |
0704.0028 | Pfaffians, hafnians and products of real linear functionals | P\'eter E. Frenkel | math.CA math.PR | https://arxiv.org/abs/0704.0028 | 2014-07-31 | We prove pfaffian and hafnian versions of Lieb's inequalities on determinants and permanents of positive semi-definite matrices. We use the hafnian inequality to improve the lower bound of R\'ev\'esz and Sarantopoulos on the norm of a product of linear functionals on a real Euclidean space (this subject is sometimes ca... |
0704.0029 | Understanding the Flavor Symmetry Breaking and Nucleon Flavor-Spin Structure within Chiral Quark Model | Zhan Shu, Xiao-Lin Chen and Wei-Zhen Deng | hep-ph | https://arxiv.org/abs/0704.0029 | 2010-04-23 | In $\XQM$, a quark can emit Goldstone bosons. The flavor symmetry breaking in the Goldstone boson emission process is used to intepret the nucleon flavor-spin structure. In this paper, we study the inner structure of constituent quarks implied in $\XQM$ caused by the Goldstone boson emission process in nucleon. From a ... |
0704.0030 | Tuning correlation effects with electron-phonon interactions | J.P.Hague and N.d'Ambrumenil | cond-mat.str-el | https://arxiv.org/abs/0704.0030 | 2015-05-13 | We investigate the effect of tuning the phonon energy on the correlation effects in models of electron-phonon interactions using DMFT. In the regime where itinerant electrons, instantaneous electron-phonon driven correlations and static distortions compete on similar energy scales, we find several interesting results i... |
0704.0031 | Crystal channeling of LHC forward protons with preserved distribution in phase space | V. M. Biryukov (Serpukhov, IHEP) | hep-ph | https://arxiv.org/abs/0704.0031 | 2008-11-26 | We show that crystal can trap a broad (x, x', y, y', E) distribution of particles and channel it preserved with a high precision. This sampled-and-hold distribution can be steered by a bent crystal for analysis downstream. In simulations for the 7 TeV Large Hadron Collider, a crystal adapted to the accelerator lattice ... |
0704.0032 | Probing non-standard neutrino interactions with supernova neutrinos | A. Esteban-Pretel, R. Tom\`as and J. W. F. Valle | hep-ph | https://arxiv.org/abs/0704.0032 | 2008-11-26 | We analyze the possibility of probing non-standard neutrino interactions (NSI, for short) through the detection of neutrinos produced in a future galactic supernova (SN).We consider the effect of NSI on the neutrino propagation through the SN envelope within a three-neutrino framework, paying special attention to the i... |
0704.0033 | Convergence of the discrete dipole approximation. I. Theoretical analysis | Maxim A. Yurkin, Valeri P. Maltsev, Alfons G. Hoekstra | physics.optics physics.comp-ph | https://arxiv.org/abs/0704.0033 | 2022-03-31 | We performed a rigorous theoretical convergence analysis of the discrete dipole approximation (DDA). We prove that errors in any measured quantity are bounded by a sum of a linear and quadratic term in the size of a dipole d, when the latter is in the range of DDA applicability. Moreover, the linear term is significant... |
0704.0034 | Origin of adaptive mutants: a quantum measurement? | Vasily Ogryzko | q-bio.PE q-bio.CB quant-ph | https://arxiv.org/abs/0704.0034 | 2007-05-23 | This is a supplement to the paper arXiv:q-bio/0701050, containing the text of correspondence sent to Nature in 1990. |
0704.0035 | Convergence of the discrete dipole approximation. II. An extrapolation technique to increase the accuracy | Maxim A. Yurkin, Valeri P. Maltsev, Alfons G. Hoekstra | physics.optics physics.comp-ph | https://arxiv.org/abs/0704.0035 | 2008-07-29 | We propose an extrapolation technique that allows accuracy improvement of the discrete dipole approximation computations. The performance of this technique was studied empirically based on extensive simulations for 5 test cases using many different discretizations. The quality of the extrapolation improves with refinin... |
0704.0036 | A remark on the number of steady states in a multiple futile cycle | Liming Wang and Eduardo D. Sontag | q-bio.QM q-bio.MN | https://arxiv.org/abs/0704.0036 | 2011-11-09 | The multisite phosphorylation-dephosphorylation cycle is a motif repeatedly used in cell signaling. This motif itself can generate a variety of dynamic behaviors like bistability and ultrasensitivity without direct positive feedbacks. In this paper, we study the number of positive steady states of a general multisite p... |
0704.0037 | The discrete dipole approximation for simulation of light scattering by particles much larger than the wavelength | Maxim A. Yurkin, Valeri P. Maltsev, Alfons G. Hoekstra | physics.optics physics.comp-ph | https://arxiv.org/abs/0704.0037 | 2007-05-23 | In this manuscript we investigate the capabilities of the Discrete Dipole Approximation (DDA) to simulate scattering from particles that are much larger than the wavelength of the incident light, and describe an optimized publicly available DDA computer program that processes the large number of dipoles required for su... |
0704.0038 | The discrete dipole approximation: an overview and recent developments | Maxim A. Yurkin, Alfons G. Hoekstra | physics.optics physics.comp-ph | https://arxiv.org/abs/0704.0038 | 2022-03-30 | We present a review of the discrete dipole approximation (DDA), which is a general method to simulate light scattering by arbitrarily shaped particles. We put the method in historical context and discuss recent developments, taking the viewpoint of a general framework based on the integral equations for the electric fi... |
0704.0039 | Scalar radius of the pion and zeros in the form factor | Jose A. Oller and Luis Roca | hep-ph hep-lat nucl-th | https://arxiv.org/abs/0704.0039 | 2008-11-26 | The quadratic pion scalar radius, \la r^2\ra^\pi_s, plays an important role for present precise determinations of \pi\pi scattering. Recently, Yndur\'ain, using an Omn\`es representation of the null isospin(I) non-strange pion scalar form factor, obtains \la r^2\ra^\pi_s=0.75\pm 0.07 fm^2. This value is larger than the... |
0704.0040 | Multilinear function series in conditionally free probability with amalgamation | Mihai Popa | math.OA math.FA | https://arxiv.org/abs/0704.0040 | 2008-09-05 | As in the cases of freeness and monotonic independence, the notion of conditional freeness is meaningful when complex-valued states are replaced by positive conditional expectations. In this framework, the paper presents several positivity results, a version of the central limit theorem and an analogue of the condition... |
0704.0041 | Quantum Group of Isometries in Classical and Noncommutative Geometry | Debashish Goswami | math.QA math-ph math.MP | https://arxiv.org/abs/0704.0041 | 2009-11-13 | We formulate a quantum generalization of the notion of the group of Riemannian isometries for a compact Riemannian manifold, by introducing a natural notion of smooth and isometric action by a compact quantum group on a classical or noncommutative manifold described by spectral triples, and then proving the existence o... |
0704.0042 | General System theory, Like-Quantum Semantics and Fuzzy Sets | Ignazio Licata | physics.gen-ph quant-ph | https://arxiv.org/abs/0704.0042 | 2010-04-26 | It is outlined the possibility to extend the quantum formalism in relation to the requirements of the general systems theory. It can be done by using a quantum semantics arising from the deep logical structure of quantum theory. It is so possible taking into account the logical openness relationship between observer an... |
0704.0043 | Nonequilibrium entropy limiters in lattice Boltzmann methods | R.A. Brownlee, A.N. Gorban, J. Levesley | cond-mat.stat-mech cond-mat.mtrl-sci | https://arxiv.org/abs/0704.0043 | 2007-11-19 | We construct a system of nonequilibrium entropy limiters for the lattice Boltzmann methods (LBM). These limiters erase spurious oscillations without blurring of shocks, and do not affect smooth solutions. In general, they do the same work for LBM as flux limiters do for finite differences, finite volumes and finite ele... |
0704.0044 | Astrophysical gyrokinetics: kinetic and fluid turbulent cascades in magnetized weakly collisional plasmas | A. A. Schekochihin (Oxford), S. C. Cowley (Culham), W. Dorland (Maryland), G. W. Hammett (Princeton), G. G. Howes (Iowa), E. Quataert (Berkeley), T. Tatsuno (Maryland) | astro-ph nlin.CD physics.plasm-ph physics.space-ph | https://arxiv.org/abs/0704.0044 | 2015-05-13 | We present a theoretical framework for plasma turbulence in astrophysical plasmas (solar wind, interstellar medium, galaxy clusters, accretion disks). The key assumptions are that the turbulence is anisotropic with respect to the mean magnetic field and frequencies are low compared to the ion cyclotron frequency. The e... |
0704.0045 | Evolution of solitary waves and undular bores in shallow-water flows over a gradual slope with bottom friction | G.A. El, R.H.J. Grimshaw, A.M. Kamchatnov | nlin.PS nlin.SI | https://arxiv.org/abs/0704.0045 | 2007-09-23 | This paper considers the propagation of shallow-water solitary and nonlinear periodic waves over a gradual slope with bottom friction in the framework of a variable-coefficient Korteweg-de Vries equation. We use the Whitham averaging method, using a recent development of this theory for perturbed integrable equations. ... |
0704.0046 | A limit relation for entropy and channel capacity per unit cost | I. Csiszar, F. Hiai and D. Petz | quant-ph cs.IT math.IT | https://arxiv.org/abs/0704.0046 | 2009-11-13 | In a quantum mechanical model, Diosi, Feldmann and Kosloff arrived at a conjecture stating that the limit of the entropy of certain mixtures is the relative entropy as system size goes to infinity. The conjecture is proven in this paper for density matrices. The first proof is analytic and uses the quantum law of large... |
0704.0047 | Intelligent location of simultaneously active acoustic emission sources: Part I | T. Kosel and I. Grabec | cs.NE cs.AI | https://arxiv.org/abs/0704.0047 | 2009-09-29 | The intelligent acoustic emission locator is described in Part I, while Part II discusses blind source separation, time delay estimation and location of two simultaneously active continuous acoustic emission sources. The location of acoustic emission on complicated aircraft frame structures is a difficult problem of ... |
0704.0048 | Inference on white dwarf binary systems using the first round Mock LISA Data Challenges data sets | Alexander Stroeer, John Veitch, Christian Roever, Ed Bloomer, James Clark, Nelson Christensen, Martin Hendry, Chris Messenger, Renate Meyer, Matthew Pitkin, Jennifer Toher, Richard Umstaetter, Alberto Vecchio and Graham Woan | gr-qc astro-ph | https://arxiv.org/abs/0704.0048 | 2008-11-26 | We report on the analysis of selected single source data sets from the first round of the Mock LISA Data Challenges (MLDC) for white dwarf binaries. We implemented an end-to-end pipeline consisting of a grid-based coherent pre-processing unit for signal detection, and an automatic Markov Chain Monte Carlo post-processi... |
0704.0049 | An algorithm for the classification of smooth Fano polytopes | Mikkel {\O}bro | math.CO | https://arxiv.org/abs/0704.0049 | 2007-05-23 | We present an algorithm that produces the classification list of smooth Fano d-polytopes for any given d. The input of the algorithm is a single number, namely the positive integer d. The algorithm has been used to classify smooth Fano d-polytopes for d<=7. There are 7622 isomorphism classes of smooth Fano 6-polytopes ... |
0704.0050 | Intelligent location of simultaneously active acoustic emission sources: Part II | T. Kosel and I. Grabec | cs.NE cs.AI | https://arxiv.org/abs/0704.0050 | 2007-05-23 | Part I describes an intelligent acoustic emission locator, while Part II discusses blind source separation, time delay estimation and location of two continuous acoustic emission sources. Acoustic emission (AE) analysis is used for characterization and location of developing defects in materials. AE sources often gen... |
0704.0051 | Visualizing Teleportation | Scott M. Cohen | physics.ed-ph quant-ph | https://arxiv.org/abs/0704.0051 | 2008-05-14 | A novel way of picturing the processing of quantum information is described, allowing a direct visualization of teleportation of quantum states and providing a simple and intuitive understanding of this fascinating phenomenon. The discussion is aimed at providing physicists a method of explaining teleportation to non-s... |
0704.0052 | Quantum Field Theory on Curved Backgrounds. II. Spacetime Symmetries | Arthur Jaffe (1) and Gordon Ritter (1) ((1) Harvard University) | hep-th | https://arxiv.org/abs/0704.0052 | 2007-05-23 | We study space-time symmetries in scalar quantum field theory (including interacting theories) on static space-times. We first consider Euclidean quantum field theory on a static Riemannian manifold, and show that the isometry group is generated by one-parameter subgroups which have either self-adjoint or unitary quant... |
0704.0053 | A Global Approach to the Theory of Special Finsler Manifolds | Nabil L. Youssef, S. H. Abed and A. Soleiman | math.DG gr-qc | https://arxiv.org/abs/0704.0053 | 2009-04-20 | The aim of the present paper is to provide a global presentation of the theory of special Finsler manifolds. We introduce and investigate globally (or intrinsically, free from local coordinates) many of the most important and most commonly used special Finsler manifolds: locally Minkowskian, Berwald, Landesberg, genera... |
0704.0054 | The Hardy-Lorentz Spaces $H^{p,q}(R^n)$ | Wael Abu-Shammala and Alberto Torchinsky | math.CA math.FA | https://arxiv.org/abs/0704.0054 | 2013-10-15 | In this paper we consider the Hardy-Lorentz spaces $H^{p,q}(R^n)$, with $0<p\le 1$, $0<q\le \infty$. We discuss the atomic decomposition of the elements in these spaces, their interpolation properties, and the behavior of singular integrals and other operators acting on them. |
0704.0055 | Potassium intercalation in graphite: A van der Waals density-functional study | Eleni Ziambaras, Jesper Kleis, Elsebeth Schroder, and Per Hyldgaard | cond-mat.soft cond-mat.mtrl-sci | https://arxiv.org/abs/0704.0055 | 2009-11-13 | Potassium intercalation in graphite is investigated by first-principles theory. The bonding in the potassium-graphite compound is reasonably well accounted for by traditional semilocal density functional theory (DFT) calculations. However, to investigate the intercalate formation energy from pure potassium atoms and gr... |
0704.0056 | Phase diagram of Gaussian-core nematics | Santi Prestipino and Franz Saija | cond-mat.soft cond-mat.mtrl-sci | https://arxiv.org/abs/0704.0056 | 2009-11-13 | We study a simple model of a nematic liquid crystal made of parallel ellipsoidal particles interacting via a repulsive Gaussian law. After identifying the relevant solid phases of the system through a careful zero-temperature scrutiny of as many as eleven candidate crystal structures, we determine the melting temperatu... |
0704.0057 | High-spin to low-spin and orbital polarization transitions in multiorbital Mott systems | Philipp Werner and Andrew J. Millis | cond-mat.str-el | https://arxiv.org/abs/0704.0057 | 2009-11-13 | We study the interplay of crystal field splitting and Hund coupling in a two-orbital model which captures the essential physics of systems with two electrons or holes in the e_g shell. We use single site dynamical mean field theory with a recently developed impurity solver which is able to access strong couplings and l... |
0704.0058 | Intelligent Life in Cosmology | Frank J. Tipler | physics.pop-ph | https://arxiv.org/abs/0704.0058 | 2015-05-13 | I shall present three arguments for the proposition that intelligent life is very rare in the universe. First, I shall summarize the consensus opinion of the founders of the Modern Synthesis (Simpson, Dobzhanski, and Mayr) that the evolution of intelligent life is exceedingly improbable. Second, I shall develop the Fer... |
0704.0059 | The Mass and Radius of the Unseen M-Dwarf Companion in the Single-Lined Eclipsing Binary HAT-TR-205-013 | T. G. Beatty, J. M. Fernandez, D. W. Latham, G. A. Bakos, G. Kovacs, R. W. Noyes, R. P. Stefanik, G. Torres, M. E. Everett, C. W. Hergenrother | astro-ph | https://arxiv.org/abs/0704.0059 | 2009-06-23 | We derive masses and radii for both components in the single-lined eclipsing binary HAT-TR-205-013, which consists of a F7V primary and a late M-dwarf secondary. The system's period is short, $P=2.230736 \pm 0.000010$ days, with an orbit indistinguishable from circular, $e=0.012 \pm 0.021$. We demonstrate generally tha... |
0704.0060 | Coulomb excitation of unstable nuclei at intermediate energies | C.A. Bertulani, G. Cardella, M. De Napoli, G. Raciti, and E. Rapisarda | nucl-th | https://arxiv.org/abs/0704.0060 | 2008-11-26 | We investigate the Coulomb excitation of low-lying states of unstable nuclei in intermediate energy collisions ($E_{lab}\sim10-500$ MeV/nucleon). It is shown that the cross sections for the $E1$ and $E2$ transitions are larger at lower energies, much less than 10 MeV/nucleon. Retardation effects and Coulomb distortion ... |
0704.0061 | Intersection Bodies and Generalized Cosine Transforms | Boris Rubin | math.FA | https://arxiv.org/abs/0704.0061 | 2007-05-23 | Intersection bodies represent a remarkable class of geometric objects associated with sections of star bodies and invoking Radon transforms, generalized cosine transforms, and the relevant Fourier analysis. The main focus of this article is interrelation between generalized cosine transforms of different kinds in the... |
0704.0062 | On-line Viterbi Algorithm and Its Relationship to Random Walks | Rastislav \v{S}r\'amek, Bro\v{n}a Brejov\'a, Tom\'a\v{s} Vina\v{r} | cs.DS | https://arxiv.org/abs/0704.0062 | 2010-01-25 | In this paper, we introduce the on-line Viterbi algorithm for decoding hidden Markov models (HMMs) in much smaller than linear space. Our analysis on two-state HMMs suggests that the expected maximum memory used to decode sequence of length $n$ with $m$-state HMM can be as low as $\Theta(m\log n)$, without a significan... |
0704.0063 | Experimental efforts in search of 76Ge Neutrinoless Double Beta Decay | Somnath Choudhury | hep-ph | https://arxiv.org/abs/0704.0063 | 2008-03-12 | Neutrinoless double beta decay is one of the most sensitive approaches in non-accelerator particle physics to take us into a regime of physics beyond the standard model. This article is a brief review of the experiments in search of neutrinoless double beta decay from 76Ge. Following a brief introduction of the process... |
0704.0064 | Nilpotent symmetry invariance in the superfield formulation: the (non-)Abelian 1-form gauge theories | R. P. Malik (Bhu) | hep-th | https://arxiv.org/abs/0704.0064 | 2008-11-26 | We capture the off-shell as well as the on-shell nilpotent Becchi-Rouet-Stora-Tyutin (BRST) and anti-BRST symmetry invariance of the Lagrangian densities of the four (3 + 1)-dimensional (4D) (non-)Abelian 1-form gauge theories within the framework of the superfield formalism. In particular, we provide the geometrical i... |
0704.0065 | Littlewood-Richardson polynomials | A. I. Molev | math.AG math.CO | https://arxiv.org/abs/0704.0065 | 2009-06-03 | We introduce a family of rings of symmetric functions depending on an infinite sequence of parameters. A distinguished basis of such a ring is comprised by analogues of the Schur functions. The corresponding structure coefficients are polynomials in the parameters which we call the Littlewood-Richardson polynomials. We... |
0704.0066 | Lagrangian quantum field theory in momentum picture. IV. Commutation relations for free fields | Bozhidar Z. Iliev (Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, Sofia, Bulgaria) | hep-th | https://arxiv.org/abs/0704.0066 | 2007-05-23 | Possible (algebraic) commutation relations in the Lagrangian quantum theory of free (scalar, spinor and vector) fields are considered from mathematical view-point. As sources of these relations are employed the Heisenberg equations/relations for the dynamical variables and a specific condition for uniqueness of the ope... |
0704.0067 | Order of Epitaxial Self-Assembled Quantum Dots: Linear Analysis | Lawrence H. Friedman | cond-mat.mtrl-sci | https://arxiv.org/abs/0704.0067 | 2007-06-09 | Epitaxial self-assembled quantum dots (SAQDs) are of interest for nanostructured optoelectronic and electronic devices such as lasers, photodetectors and nanoscale logic. Spatial order and size order of SAQDs are important to the development of usable devices. It is likely that these two types of order are strongly lin... |
0704.0068 | A Note About the {Ki(z)} Functions | Branko J. Malesevic | math.NT math.CV | https://arxiv.org/abs/0704.0068 | 2007-06-13 | In the article [Petojevic 2006], A. Petojevi\' c verified useful properties of the $K_{i}(z)$ functions which generalize Kurepa's [Kurepa 1971] left factorial function. In this note, we present simplified proofs of two of these results and we answer the open question stated in [Petojevic 2006]. Finally, we discuss the ... |
0704.0069 | Dynamical Objects for Cohomologically Expanding Maps | John W. Robertson | math.DS | https://arxiv.org/abs/0704.0069 | 2010-01-08 | The goal of this paper is to construct invariant dynamical objects for a (not necessarily invertible) smooth self map of a compact manifold. We prove a result that takes advantage of differences in rates of expansion in the terms of a sheaf cohomological long exact sequence to create unique lifts of finite dimensional ... |
0704.0070 | Coincidence of the oscillations in the dipole transition and in the persistent current of narrow quantum rings with two electrons | He Yanzhang and Bao Chengguang | cond-mat.mes-hall | https://arxiv.org/abs/0704.0070 | 2008-01-19 | The fractional Aharonov-Bohm oscillation (FABO) of narrow quantum rings with two electrons has been studied and has been explained in an analytical way, the evolution of the period and amplitudes against the magnetic field can be exactly described. Furthermore, the dipole transition of the ground state was found to hav... |
0704.0071 | Pairwise comparisons of typological profiles (of languages) | S. Wichmann and E.W. Holman | physics.soc-ph | https://arxiv.org/abs/0704.0071 | 2007-05-23 | No abstract given; compares pairs of languages from World Atlas of Language Structures. |
0704.0072 | The decomposition method and Maple procedure for finding first integrals of nonlinear PDEs of any order with any number of independent variables | Yu.N. Kosovtsov | math-ph math.MP | https://arxiv.org/abs/0704.0072 | 2007-05-23 | In present paper we propose seemingly new method for finding solutions of some types of nonlinear PDEs in closed form. The method is based on decomposition of nonlinear operators on sequence of operators of lower orders. It is shown that decomposition process can be done by iterative procedure(s), each step of which is... |
0704.0073 | A transcendental approach to Koll\'ar's injectivity theorem | Osamu Fujino | math.AG | https://arxiv.org/abs/0704.0073 | 2012-03-06 | We treat Koll\'ar's injectivity theorem from the analytic (or differential geometric) viewpoint. More precisely, we give a curvature condition which implies Koll\'ar type cohomology injectivity theorems. Our main theorem is formulated for a compact K\"ahler manifold, but the proof uses the space of harmonic forms on a ... |
0704.0074 | Injective Morita contexts (revisited) | J. Y. Abuhlail, S. K. Nauman | math.RA | https://arxiv.org/abs/0704.0074 | 2007-08-22 | This paper is an exposition of the so-called injective Morita contexts (in which the connecting bimodule morphisms are injective) and Morita $\alpha$contexts (in which the connecting bimodules enjoy some local projectivity in the sense of Zimmermann-Huisgen). Motivated by situations in which only one trace ideal is in ... |
0704.0075 | Strong decays of charmed baryons | Chong Chen, Xiao-Lin Chen, Xiang Liu, Wei-Zhen Deng and Shi-Lin Zhu | hep-ph hep-ex nucl-ex | https://arxiv.org/abs/0704.0075 | 2008-11-26 | There has been important experimental progress in the sector of heavy baryons in the past several years. We study the strong decays of the S-wave, P-wave, D-wave and radially excited charmed baryons using the $^3P_0$ model. After comparing the calculated decay pattern and total width with the available data, we discuss... |
0704.0076 | CP violation in beauty decays | Michael Gronau | hep-ph hep-ex | https://arxiv.org/abs/0704.0076 | 2008-11-26 | Precision tests of the Kobayashi-Maskawa model of CP violation are discussed, pointing out possible signatures for other sources of CP violation and for new flavor-changing operators. The current status of the most accurate tests is summarized. |
0704.0077 | Universal Forces and the Dark Energy Problem | Afsar Abbas | physics.gen-ph | https://arxiv.org/abs/0704.0077 | 2007-05-23 | The Dark Energy problem is forcing us to re-examine our models and our understanding of relativity and space-time. Here a novel idea of Fundamental Forces is introduced. This allows us to perceive the General Theory of Relativity and Einstein's Equation from a new pesrpective. In addition to providing us with an improv... |
0704.0078 | Linear perturbations of matched spacetimes: the gauge problem and background symmetries | Marc Mars, Filipe C. Mena, Raul Vera | gr-qc | https://arxiv.org/abs/0704.0078 | 2008-11-26 | We present a critical review about the study of linear perturbations of matched spacetimes including gauge problems. We analyse the freedom introduced in the perturbed matching by the presence of background symmetries and revisit the particular case of spherically symmetry in n-dimensions. This analysis includes settin... |
0704.0079 | Operator algebras associated with unitary commutation relations | Stephen C. Power (Lancaster University), Baruch Solel (Technion) | math.OA | https://arxiv.org/abs/0704.0079 | 2007-05-23 | We define nonselfadjoint operator algebras with generators $L_{e_1},..., L_{e_n}, L_{f_1},...,L_{f_m}$ subject to the unitary commutation relations of the form \[ L_{e_i}L_{f_j} = \sum_{k,l} u_{i,j,k,l} L_{f_l}L_{e_k}\] where $u= (u_{i,j,k,l})$ is an $nm \times nm$ unitary matrix. These algebras, which generalise the a... |
0704.0080 | Shaping the Globular Cluster Mass Function by Stellar-Dynamical Evaporation | Dean E. McLaughlin and S. Michael Fall | astro-ph | https://arxiv.org/abs/0704.0080 | 2010-11-11 | We show that the globular cluster mass function (GCMF) in the Milky Way depends on cluster half-mass density (rho_h) in the sense that the turnover mass M_TO increases with rho_h while the width of the GCMF decreases. We argue that this is the expected signature of the slow erosion of a mass function that initially ros... |
0704.0081 | Quantum Deformations of Relativistic Symmetries | V.N. Tolstoy (INP, Moscow State University) | math.QA hep-th math-ph math.MP math.RT | https://arxiv.org/abs/0704.0081 | 2007-05-23 | We discussed quantum deformations of D=4 Lorentz and Poincare algebras. In the case of Poincare algebra it is shown that almost all classical r-matrices of S. Zakrzewski classification correspond to twisted deformations of Abelian and Jordanian types. A part of twists corresponding to the r-matrices of Zakrzewski class... |
0704.0082 | Matter-Wave Bright Solitons with a Finite Background in Spinor Bose-Einstein Condensates | Tetsuo Kurosaki, Miki Wadati | cond-mat.other cond-mat.stat-mech | https://arxiv.org/abs/0704.0082 | 2009-11-13 | We investigate dynamical properties of bright solitons with a finite background in the F=1 spinor Bose-Einstein condensate (BEC), based on an integrable spinor model which is equivalent to the matrix nonlinear Schr\"{o}dinger equation with a self-focusing nonlineality. We apply the inverse scattering method formulated ... |
0704.0083 | Why there is something rather than nothing (out of everything)? | A.O.Barvinsky | hep-th | https://arxiv.org/abs/0704.0083 | 2008-11-26 | The path integral over Euclidean geometries for the recently suggested density matrix of the Universe is shown to describe a microcanonical ensemble in quantum cosmology. This ensemble corresponds to a uniform (weight one) distribution in phase space of true physical variables, but in terms of the observable spacetime ... |
0704.0084 | Formation of density singularities in ideal hydrodynamics of freely cooling inelastic gases: a family of exact solutions | Itzhak Fouxon, Baruch Meerson, Michael Assaf, Eli Livne | cond-mat.soft nlin.PS physics.flu-dyn | https://arxiv.org/abs/0704.0084 | 2009-11-13 | We employ granular hydrodynamics to investigate a paradigmatic problem of clustering of particles in a freely cooling dilute granular gas. We consider large-scale hydrodynamic motions where the viscosity and heat conduction can be neglected, and one arrives at the equations of ideal gas dynamics with an additional term... |
0704.0085 | A Universality in PP-Waves | Partha Mukhopadhyay | hep-th | https://arxiv.org/abs/0704.0085 | 2009-11-13 | We discuss a universality property of any covariant field theory in space-time expanded around pp-wave backgrounds. According to this property the space-time lagrangian density evaluated on a restricted set of field configurations, called universal sector, turns out to be same around all the pp-waves, even off-shell, w... |
0704.0086 | Clustering in a stochastic model of one-dimensional gas | Vladislav V. Vysotsky | math.PR | https://arxiv.org/abs/0704.0086 | 2008-06-17 | We give a quantitative analysis of clustering in a stochastic model of one-dimensional gas. At time zero, the gas consists of $n$ identical particles that are randomly distributed on the real line and have zero initial speeds. Particles begin to move under the forces of mutual attraction. When particles collide, they s... |
0704.0087 | Approximate solutions to the Dirichlet problem for harmonic maps between hyperbolic spaces | Duong Minh Duc and Truong Trung Tuyen | math.DG | https://arxiv.org/abs/0704.0087 | 2007-06-13 | Our main result in this paper is the following: Given $H^m, H^n$ hyperbolic spaces of dimensional $m$ and $n$ corresponding, and given a Holder function $f=(s^1,...,f^{n-1}):\partial H^m\to \partial H^n$ between geometric boundaries of $H^m$ and $H^n$. Then for each $\epsilon >0$ there exists a harmonic map $u:H^m\to H... |
0704.0088 | Some new experimental photonic flame effect features | N.V.Tcherniega | physics.optics | https://arxiv.org/abs/0704.0088 | 2007-05-23 | The results of the spectral, energetical and temporal characteristics of radiation in the presence of the photonic flame effect are presented. Artificial opal posed on Cu plate at the temperature of liquid nitrogen boiling point (77 K) being irradiated by nanosecond ruby laser pulse produces long- term luminiscence wit... |
0704.0089 | A general approach to statistical modeling of physical laws: nonparametric regression | I. Grabec | physics.data-an physics.gen-ph | https://arxiv.org/abs/0704.0089 | 2007-05-23 | Statistical modeling of experimental physical laws is based on the probability density function of measured variables. It is expressed by experimental data via a kernel estimator. The kernel is determined objectively by the scattering of data during calibration of experimental setup. A physical law, which relates measu... |
0704.0090 | Real Options for Project Schedules (ROPS) | Lester Ingber | cs.CE cond-mat.stat-mech cs.MS cs.NA physics.data-an | https://arxiv.org/abs/0704.0090 | 2007-05-23 | Real Options for Project Schedules (ROPS) has three recursive sampling/optimization shells. An outer Adaptive Simulated Annealing (ASA) optimization shell optimizes parameters of strategic Plans containing multiple Projects containing ordered Tasks. A middle shell samples probability distributions of durations of Tasks... |
0704.0091 | Groups with finitely many conjugacy classes and their automorphisms | Ashot Minasyan | math.GR | https://arxiv.org/abs/0704.0091 | 2009-07-07 | We combine classical methods of combinatorial group theory with the theory of small cancellations over relatively hyperbolic groups to construct finitely generated torsion-free groups that have only finitely many classes of conjugate elements. Moreover, we present several results concerning embeddings into such groups.... |
0704.0092 | Energy density for chiral lattice fermions with chemical potential | Christof Gattringer and Ludovit Liptak | hep-lat hep-ph | https://arxiv.org/abs/0704.0092 | 2008-11-26 | We study a recently proposed formulation of overlap fermions at finite density. In particular we compute the energy density as a function of the chemical potential and the temperature. It is shown that overlap fermions with chemical potential reproduce the correct continuum behavior. |
0704.0093 | Aspects of Electron-Phonon Self-Energy Revealed from Angle-Resolved Photoemission Spectroscopy | W.S. Lee, S. Johnston, T.P. Devereaux, and Z.-X. Shen | cond-mat.supr-con cond-mat.str-el | https://arxiv.org/abs/0704.0093 | 2008-01-16 | Lattice contribution to the electronic self-energy in complex correlated oxides is a fascinating subject that has lately stimulated lively discussions. Expectations of electron-phonon self-energy effects for simpler materials, such as Pd and Al, have resulted in several misconceptions in strongly correlated oxides. Her... |
0704.0094 | Timing and Lensing of the Colliding Bullet Clusters: barely enough time and gravity to accelerate the bullet | HongSheng Zhao (SUPA, St Andrews) | astro-ph | https://arxiv.org/abs/0704.0094 | 2007-05-23 | We present semi-analytical constraint on the amount of dark matter in the merging bullet galaxy cluster using the classical Local Group timing arguments. We consider particle orbits in potential models which fit the lensing data. {\it Marginally consistent} CDM models in Newtonian gravity are found with a total mass M_... |
0704.0095 | Geometry of Locally Compact Groups of Polynomial Growth and Shape of Large Balls | Emmanuel Breuillard | math.GR math.DG | https://arxiv.org/abs/0704.0095 | 2012-04-11 | We get asymptotics for the volume of large balls in an arbitrary locally compact group G with polynomial growth. This is done via a study of the geometry of G and a generalization of P. Pansu's thesis. In particular, we show that any such G is weakly commensurable to some simply connected solvable Lie group S, the Lie ... |
0704.0096 | Much ado about 248 | M.C. Nucci and P.G.L. Leach | nlin.SI | https://arxiv.org/abs/0704.0096 | 2007-05-23 | In this note we present three representations of a 248-dimensional Lie algebra, namely the algebra of Lie point symmetries admitted by a system of five trivial ordinary differential equations each of order forty-four, that admitted by a system of seven trivial ordinary differential equations each of order twenty-eight ... |
0704.0097 | Conformal Field Theory and Operator Algebras | Yasuyuki Kawahigashi | math-ph math.MP math.OA | https://arxiv.org/abs/0704.0097 | 2007-05-23 | We review recent progress in operator algebraic approach to conformal quantum field theory. Our emphasis is on use of representation theory in classification theory. This is based on a series of joint works with R. Longo. |
0704.0098 | Sparsely-spread CDMA - a statistical mechanics based analysis | Jack Raymond, David Saad | cs.IT math.IT | https://arxiv.org/abs/0704.0098 | 2009-11-13 | Sparse Code Division Multiple Access (CDMA), a variation on the standard CDMA method in which the spreading (signature) matrix contains only a relatively small number of non-zero elements, is presented and analysed using methods of statistical physics. The analysis provides results on the performance of maximum likelih... |
0704.0099 | On Ando's inequalities for convex and concave functions | Koenraad M.R. Audenaert and Jaspal Singh Aujla | math.FA | https://arxiv.org/abs/0704.0099 | 2007-05-23 | For positive semidefinite matrices $A$ and $B$, Ando and Zhan proved the inequalities $||| f(A)+f(B) ||| \ge ||| f(A+B) |||$ and $||| g(A)+g(B) ||| \le ||| g(A+B) |||$, for any unitarily invariant norm, and for any non-negative operator monotone $f$ on $[0,\infty)$ with inverse function $g$. These inequalities have ver... |
0704.0100 | Topology Change of Black Holes | Daisuke Ida and Masaru Siino | gr-qc | https://arxiv.org/abs/0704.0100 | 2008-11-26 | The topological structure of the event horizon has been investigated in terms of the Morse theory. The elementary process of topological evolution can be understood as a handle attachment. It has been found that there are certain constraints on the nature of black hole topological evolution: (i) There are n kinds of ha... |
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