Date: Tue, 30 Oct 07 00:01:01 GMT Subject: gr-qc daily 9 new + 8 crosses received by eprepget ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ Send any complaints regarding submissions directly to submitter. ------------------------------------------------------------------------------ Point your www client at http://arXiv.org/ To unsubscribe, e-mail To: gr-qc@arXiv.org, Subject: cancel ------------------------------------------------------------------------------ received by eprepget from Fri 26 Oct 07 20:00:04 GMT to Mon 29 Oct 07 20:00:22 GMT ------------------------------------------------------------------------------ \\ arXiv:0710.5169 Date: Fri, 26 Oct 2007 20:00:06 GMT (64kb) Title: Relativistic black hole-neutron star binaries in quasiequilibrium: effects of the black hole excision boundary condition Authors: Keisuke Taniguchi, Thomas W. Baumgarte, Joshua A. Faber, and Stuart L. Shapiro Categories: gr-qc Comments: 15 pages, 14 figures, submitted to Phys. Rev. D \\ We construct new models of black hole-neutron star binaries in quasiequilibrium circular orbits by solving Einstein's constraint equations in the conformal thin-sandwich decomposition together with the relativistic equations of hydrostationary equilibrium. We adopt maximal slicing, assume spatial conformal flatness, and impose equilibrium boundary conditions on an excision surface (i.e., the apparent horizon) to model the black hole. In our previous treatment we adopted a "leading-order" approximation for a parameter related to the black-hole spin in these boundary conditions to construct approximately nonspinning black holes. Here we improve on the models by computing the black hole's quasilocal spin angular momentum and setting it to zero. As before, we adopt a polytropic equation of state with adiabatic index Gamma=2 and assume the neutron star to be irrotational. In addition to recomputing several sequences for comparison with our earlier results, we study a wider range of neutron star masses and binary mass ratios. To locate the innermost stable circular orbit we search for turning points along both the binding energy and total angular momentum curves for these sequences. Unlike for our previous approximate boundary condition, these two minima now coincide. We also identify the formation of cusps on the neutron star surface, indicating the onset of tidal disruption. Comparing these two critical binary separations for different mass ratios and neutron star compactions we distinguish those regions that will lead to a tidal disruption of the neutron star from those that will result in the plunge into the black hole of a neutron star more or less intact, albeit distorted by tidal forces. \\ ( http://arxiv.org/abs/0710.5169 , 64kb) ------------------------------------------------------------------------------ \\ arXiv:0710.5250 Date: Sat, 27 Oct 2007 19:56:54 GMT (22kb) Title: Time-frequency analysis of extreme-mass-ratio inspiral signals in mock LISA data Authors: Jonathan R Gair, Ilya Mandel, Linqing Wen Categories: gr-qc Comments: Amaldi-7 conference proceedings; requires jpconf style files \\ Extreme-mass-ratio inspirals (EMRIs) of ~ 1-10 solar-mass compact objects into ~ million solar-mass massive black holes can serve as excellent probes of strong-field general relativity. The Laser Interferometer Space Antenna (LISA) is expected to detect gravitational wave signals from apprxomiately one hundred EMRIs per year, but the data analysis of EMRI signals poses a unique set of challenges due to their long duration and the extensive parameter space of possible signals. One possible approach is to carry out a search for EMRI tracks in the time-frequency domain. We have applied a time-frequency search to the data from the Mock LISA Data Challenge (MLDC) with promising results. Our analysis used the Hierarchical Algorithm for Clusters and Ridges to identify tracks in the time-frequency spectrogram corresponding to EMRI sources. We then estimated the EMRI source parameters from these tracks. In these proceedings, we discuss the results of this analysis of the MLDC round 1.3 data. \\ ( http://arxiv.org/abs/0710.5250 , 22kb) ------------------------------------------------------------------------------ \\ arXiv:0710.5282 Date: Sun, 28 Oct 2007 18:20:12 GMT (14kb) Title: Scalar Field Equations from Quantum Gravity during Inflation Authors: E. O. Kahya and R. P. Woodard Categories: gr-qc Comments: 19 pages, 5 tables Report-no: UFIFT-QG-07-05 \\ We exploit a previous computation of the self-mass-squared from quantum gravity to include quantum corrections to the scalar evolution equation. The plane wave mode functions are shown to receive no significant one loop corrections at late times. This result probably applies as well to the inflaton of scalar-driven inflation. If so, there is no significant correction to the $\phi \phi$ correlator that plays a crucial role in computations of the power spectrum. \\ ( http://arxiv.org/abs/0710.5282 , 14kb) ------------------------------------------------------------------------------ \\ arXiv:0710.5310 Date: Sun, 28 Oct 2007 20:07:45 GMT (9kb) Title: Twisting type N vacuums with cosmological constant Authors: Pawel Nurowski Categories: gr-qc \\ We provide the first examples of vacuum metrics with cosmological constant which have a twisting quadruple principal null direction. \\ ( http://arxiv.org/abs/0710.5310 , 9kb) ------------------------------------------------------------------------------ \\ arXiv:0710.5366 Date: Mon, 29 Oct 2007 09:51:45 GMT (9kb) Title: Logarithm of the scale factor as a generalised coordinate in a lagrangian for dark matter and dark energy Authors: Debashis Gangopadhyay and Somnath Mukherjee Categories: gr-qc Comments: 18 pages, latex \\ A lagrangian for the $k-$ essence field is set up with canonical kinetic terms and incorporating the scaling relation of [1]. There are two degrees of freedom, {\it viz.},$q(t)= ln\enskip a(t)$ ($a(t)$ is the scale factor) and the scalar field $\phi$, and an interaction term involving $\phi$ and $q(t)$.The Euler-Lagrange equations are solved for $q$ and $\phi$. Using these solutions quantities of cosmological interest are determined. The energy density $\rho$ has a constant component which we identify as dark energy and a component behaving as $a^{-3}$ which we call dark matter. The pressure $p$ is {\it negative} for time $t\to \infty$ and the sound velocity $c_{s}^{2}={\partial p\over\partial\rho} << 1$. When dark energy dominates, the deceleration parameter $Q\to -1$ while in the matter dominated era $Q\sim {1\over 2}$. The equation of state parameter $w={p\over \rho}$ is shown to be consistent with $w={p\over\rho}\sim -1$ for dark energy domination and during the matter dominated era we have $w\sim 0$. Bounds for the parameters of the theory are estimated from observational data. Keywords: k-essence models, dark matter, dark energy PACS No: 98.80.-k \\ ( http://arxiv.org/abs/0710.5366 , 9kb) ------------------------------------------------------------------------------ \\ arXiv:0710.5373 Date: Mon, 29 Oct 2007 10:21:08 GMT (592kb) Title: The Unruh effect and its applications Authors: Luis C. B. Crispino, Atsushi Higuchi and George E. A. Matsas Categories: gr-qc Comments: 53 pages, 11 figures, submitted to Reviews of Modern Physics \\ It has been thirty years since the discovery of the Unruh effect. It has played a crucial role in our understanding that the particle content of a field theory is observer dependent. This effect is important in its own right and as a way to understand the phenomenon of particle emission from black holes and cosmological horizons. Here, we review the Unruh effect with particular emphasis to its applications. We also comment on a number of recent developments and discuss some controversies. Effort is also made to clarify what seems to be common misconceptions. \\ ( http://arxiv.org/abs/0710.5373 , 592kb) ------------------------------------------------------------------------------ \\ arXiv:0710.5407 Date: Mon, 29 Oct 2007 12:34:18 GMT (175kb) Title: Ray optics in the field of non-minimal Dirac monopole Authors: Alexander B. Balakin, Alexei E. Zayats Categories: gr-qc Comments: 10 pages, 4 figures, submitted to Gravitation & Cosmology \\ Based on the analogy with non-minimal SU(2) symmetric Wu-Yang monopole with regular metric, the solution describing a non-minimal U(1) symmetric Dirac monopole is obtained. In order to take into account the curvature coupling of gravitational and electromagnetic fields, we reconstruct the effective metrics of two types: the so-called associated and optical metrics. The optical metrics display explicitly that the effect of birefringence induced by curvature takes place in the vicinity of the non-minimal Dirac monopole; these optical metrics are studied analytically and numerically. \\ ( http://arxiv.org/abs/0710.5407 , 175kb) ------------------------------------------------------------------------------ \\ arXiv:0710.5460 Date: Mon, 29 Oct 2007 15:56:17 GMT (15kb) Title: Pioneer Effect: An Interesting Numerical Coincidence Authors: Jarmo M\"akel\"a Categories: gr-qc Comments: 15 pages, no figures \\ We note that if we construct from the observed anomalous acceleration $a_P=(8.74\pm1.33)\times 10^{-10}m/s^2$ of the spacecrafts Pioneer 10 and 11 towards the Sun, the proton mass $m_p$ and Newton's gravitational constant $G$ a quantity $\ell_P:=(Gm_p/a_P)^{1/2}$, which has the same dimension as length, then $\ell_P$ is roughly of the same order of magnitude as is the Compton wave length of a proton. We formulate a simple quantum mechanical hypothesis, which aims to provide an explanation to this interesting numerical coincidence. \\ ( http://arxiv.org/abs/0710.5460 , 15kb) ------------------------------------------------------------------------------ \\ arXiv:0710.5493 Date: Mon, 29 Oct 2007 17:53:00 GMT (12kb) Title: Report on workshop A1: Exact solutions and their interpretation Authors: Jos\'e M. M. Senovilla Categories: gr-qc Comments: 9 pages, no figures. Report submitted to the Proceedings of GR18 \\ I report on the communications and posters presented on exact solutions and their interpretation at the GRG18 Conference, Sydney. \\ ( http://arxiv.org/abs/0710.5493 , 12kb) %-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%- ------------------------------------------------------------------------------ \\ arXiv:math-ph/0611025 (*cross-listing*) Date: Sun, 12 Nov 2006 17:03:02 GMT (17kb) Date (revised v2): Sun, 28 Oct 2007 13:03:32 GMT (21kb) Title: The Casimir Effect for Parallel Plates Revisited Authors: N.A. Kawakami, M.C. Nemes, W.F. Wreszinski Categories: math-ph gr-qc math.MP quant-ph Comments: 25 pages, no figures, latex \\ The Casimir effect for a massless scalar field with Dirichlet and periodic boundary conditions (b.c.) on infinite parallel plates is revisited in the local quantum field theory (lqft) framework introduced by B.Kay. The model displays a number of more realistic features than the ones he treated. In addition to local observables, as the energy density, we propose to consider intensive variables, such as the energy per unit area $\epsilon$, as fundamental observables. Adopting this view, lqft rejects Dirichlet (the same result may be proved for Neumann or mixed) b.c., and accepts periodic b.c.: in the former case $\epsilon$ diverges, in the latter it is finite, as is shown by an expression for the local energy density obtained from lqft through the use of the Poisson summation formula. Another way to see this uses methods from the Euler summation formula: in the proof of regularization independence of the energy per unit area, a regularization-dependent surface term arises upon use of Dirichlet b.c. but not periodic b.c.. For the conformally invariant scalar quantum field, this surface term is absent, due to the condition of zero trace of the energy momentum tensor, as remarked by B.De Witt. The latter property does not hold in tha application to the dark energy problem in Cosmology, in which we argue that periodic b.c. might play a distinguished role. \\ ( http://arxiv.org/abs/math-ph/0611025 , 21kb) ------------------------------------------------------------------------------ \\ arXiv:0705.4145 (*cross-listing*) Date: Tue, 29 May 2007 05:26:32 GMT (211kb) Date (revised v2): Sat, 27 Oct 2007 08:46:23 GMT (212kb) Title: Statefinder diagnosis for the interacting model of holographic dark energy Authors: Jingfei Zhang, Xin Zhang, Hongya Liu Categories: astro-ph gr-qc hep-ph hep-th Comments: 17 pages, 5 figures; accepted for publication in Phys. Lett. B \\ In this paper, we investigate the holographic dark energy model with interaction between dark energy and dark matter, from the statefinder viewpoint. We plot the trajectories of the interacting holographic dark energy model for different interaction cases as well as for different values of the parameter $c$ in the statefinder-plane. The statefinder diagrams characterize the properties of the holographic dark energy and show the discrimination between the two cases with and without interaction. As a result, we show the influence of the interaction to the evolution of the universe in the statefinder diagrams. Moreover, as a complement to the statefinder diagnosis, we study the interacting holographic dark energy model in the $w-w'$ plane, which can provide us with a dynamical diagnosis. \\ ( http://arxiv.org/abs/0705.4145 , 212kb) ------------------------------------------------------------------------------ \\ arXiv:0709.3573 (*cross-listing*) Date: Sat, 22 Sep 2007 10:21:32 GMT (61kb) Date (revised v2): Mon, 29 Oct 2007 13:23:38 GMT (61kb) Title: Does Information Rule the Quantum Black Hole? Authors: Hyeong-Chan Kim, Jae-Weon Lee, and Jungjai Lee Categories: hep-th gr-qc Comments: 4 pages, 2 figures, remove false argument \\ Using the Landauer's principle of information erasure, we show that the statement "the Schwarzschild black hole is a maximal entropy object" implies that its entropy is given by mass-squared. We also obtain the quantized black hole mass spectra and entropy by using the fact that the information is composed of bit or trit. The black hole entropy has a sub-leading contribution proportional to the logarithm of area in addition to the usual areal term without an artificial cutoff. Comparing the results with the analysis of Hod \cite{Hod}, we argue that the Schwarzschild black hole erases information in unit of trit. We also argue that the minimum of a black hole mass is $\sqrt{\log 3/(8\pi)}M_P$. \\ ( http://arxiv.org/abs/0709.3573 , 61kb) ------------------------------------------------------------------------------ \\ arXiv:0710.2956 (*cross-listing*) Date: Tue, 16 Oct 2007 12:21:38 GMT (58kb) Date (revised v2): Tue, 23 Oct 2007 15:20:33 GMT (58kb) Date (revised v3): Sat, 27 Oct 2007 07:10:36 GMT (58kb) Title: Near Extremal Black Hole Entropy as Entanglement Entropy via AdS2/CFT1 Authors: Tatsuo Azeyanagi, Tatsuma Nishioka and Tadashi Takayanagi Categories: hep-th gr-qc Comments: LaTeX, 32 pages, 7 figures; added references Report-no: KUNS-2105 \\ We point out that the entropy of (near) extremal black holes can be interpreted as the entanglement entropy of dual conformal quantum mechanics via AdS2/CFT1. As an explicit example, we study near extremal BTZ black holes and derive this claim from AdS3/CFT2. We also analytically compute the entanglement entropy in the two dimensional CFT of a free Dirac fermion compactified on a circle at finite temperature. From this result, we clarify the relation between the thermal entropy and entanglement entropy, which is essential for the entanglement interpretation of black hole entropy. \\ ( http://arxiv.org/abs/0710.2956 , 58kb) ------------------------------------------------------------------------------ \\ arXiv:0710.3395 (*cross-listing*) Date: Wed, 17 Oct 2007 21:01:00 GMT (124kb) Title: If LHC is a Mini-Time-Machines Factory, Can We Notice? Authors: A.Mironov, A.Morozov and T.N.Tomaras Categories: hep-th gr-qc hep-ph Comments: 22 pages, 6 figures; published in the Proceedings of the Balkan Workshop 2005 (19-23 May 2005, Vrnjacka Banja, Serbia) Journal-ref: Facta Universitatis (Series: Physics, Chemistry and Technology), 4 (2006) 381-404 \\ Assuming the hypothesis of TeV-scale multi-dimensional gravity, one can imagine that at LHC not only mini-black-holes (MBH) will be intensively created, but also other exotic gravitational configurations, including hypothetical mini-time-machines (MTM). Like MBH, they should quickly evaporate, but one can wonder if their temporal existence at the moment of high-energy collision can leave any traces in the observable data. We briefly discuss five thinkable effects: (i) change of the energy spectrum due to the frequency-filtration property of MTM, (ii) possible production of anomalously energetic particles, accelerated by passing many times through gravitational field inside the MTM, (iii) acceleration of particle decays, since the proper time of a particle moving inside MTM can strongly exceed the laboratory time, (iv) CPT and naive unitarity violation (thermalization) due to effective non-local interactions caused by MTM and to possible ambiguity in the population of closed world-lines inside MTM, (v) collective effects due to conversion of a single particle into a bunch of its co-existing copies within the MTM. Despite possible particle-antiparticle conversion inside MTM, they do not seem to produce any specific CP-violation effects. \\ ( http://arxiv.org/abs/0710.3395 , 124kb) ------------------------------------------------------------------------------ \\ arXiv:0710.4609 (*cross-listing*) Date: Thu, 25 Oct 2007 14:31:00 GMT (15kb) Title: Energy Radiation by Cosmic Superstrings in Brane Inflation Authors: Hassan Firouzjahi Categories: hep-th astro-ph gr-qc hep-ph Comments: 8 pages, no figure \\ The dominant method of energy loss by a loop of cosmic D-strings in models of warped brane inflation is studied. It is shown that the energy loss via Ramond-Ramond field radiation can dominate by many orders of magnitude over the energy radiation via gravitational wave emission. The ratio of these two energy loss mechanisms depends on the energy scale of inflation, the mass scale of string theory and whether it is a single-throat or a multi-throat inflationary scenario. This can have important consequences for the detection of cosmic superstrings in the near future. It is argued that the bounds from CMB anisotropies and BBN are the dominant cosmological sources to constrain the physical parameters of the network of cosmic superstrings, whereas the role of the gravitational wave-based experiments may be secondary. \\ ( http://arxiv.org/abs/0710.4609 , 15kb) ------------------------------------------------------------------------------ \\ arXiv:0710.4918 (*cross-listing*) Date: Thu, 25 Oct 2007 17:21:18 GMT (15kb) Title: A precise formulation of the third law of thermodynamics with applications to statistical physics and black holes Authors: Walter F. Wreszinski and Elcio Abdalla Categories: math-ph gr-qc math.MP Comments: 23 pages, no figures \\ The third law of thermodynamics is formulated precisely: all points of the zero temperature manifold $\Gamma_0$ are physically adiabatically inaccessible from the state space of a simple system. in addition to implying the unattainability of absolute zero in finite time (or "by a finite number of operations"), it admits as corollary, under a continuity assumption, that all points of $\Gamma_0$ are adiabatically equivalent. We argue that the third law is universally valid for all macroscopic systems which obey the laws of quantum mechanics and/or quantum field theory, and therefore places a relevant constraint on present and future approximate theories of quantum gravity, from which (classical) black holes emerge by suitable limits. \\ ( http://arxiv.org/abs/0710.4918 , 15kb) ------------------------------------------------------------------------------ \\ arXiv:0710.5150 (*cross-listing*) Date: Fri, 26 Oct 2007 18:05:10 GMT (30kb) Title: Absorption Effects due to Spin in the Worldline Approach to Black Hole Dynamics Authors: Rafael A. Porto Categories: hep-th gr-qc Comments: 17 pages, 2 figures \\ We generalize the effective point particle approach to black hole dynamics to include spin. In this approach dissipative effects are captured by degrees of freedom localized on the wordline. The absorptive properties of the black hole are determined by correlation functions which can be matched with the graviton absorption cross section in the long wavelength approximation. For rotating black holes, superradiance is responsible for the leading contribution. The effective theory is then used to predict the power loss due to spin in the dynamics of non-relativistic binary systems. An enhancement of three powers of the relative velocity is found with respect to the non-rotating case. Then we generalize the results to other type of constituents in the binary system, such as rotating neutron stars. Finally we compute the power loss absorbed by a test spinning black hole in a given spacetime background. \\ ( http://arxiv.org/abs/0710.5150 , 30kb) %%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%% ------------------------------------------------------------------------------ \\ arXiv:gr-qc/0601128 replaced with revised version Sat, 27 Oct 2007 15:53:30 GMT (34kb) Title: The Principle of the Fermionic Projector: An Approach for Quantum Gravity? Authors: Felix Finster Categories: gr-qc Comments: 18 pages, LaTeX, few typos corrected (published version) \\ ( http://arxiv.org/abs/gr-qc/0601128 , 34kb) ------------------------------------------------------------------------------ \\ arXiv:gr-qc/0612024 replaced with revised version Mon, 29 Oct 2007 18:55:54 GMT (29kb) Title: Consistency of post-Newtonian waveforms with numerical relativity Authors: John G. Baker, James R. van Meter, Sean T. McWilliams, Joan Centrella, Bernard J. Kelly Categories: gr-qc Comments: Replaced with published version -- one figure removed, text and other figures updated for clarity of discussion Journal-ref: Phys. Rev. Lett. vol. 99, 181101 (2007) \\ ( http://arxiv.org/abs/gr-qc/0612024 , 29kb) ------------------------------------------------------------------------------ \\ arXiv:astro-ph/0703259 (*cross-listing*) replaced with revised version Mon, 29 Oct 2007 11:50:41 GMT (213kb) Title: Unified Dark Matter in Scalar Field Cosmologies Authors: Daniele Bertacca (Phys. Dept., Padova, Italy), Sabino Matarrese (Phys. Dept., Padova, Italy), Massimo Pietroni (INFN, Padova, Italy) Categories: astro-ph gr-qc hep-ph Comments: 11 pages LaTeX file, 3 figures. Modified to match the accepted version in Mod. Phys. Lett. A \\ ( http://arxiv.org/abs/astro-ph/0703259 , 213kb) ------------------------------------------------------------------------------ \\ arXiv:0704.2499 replaced with revised version Mon, 29 Oct 2007 17:10:22 GMT (7kb) Title: Electromagnetic Dark Energy and Gravitoelectrodynamics of Superconductors Authors: Clovis Jacinto de Matos Categories: gr-qc Comments: 9 pages \\ ( http://arxiv.org/abs/0704.2499 , 7kb) ------------------------------------------------------------------------------ \\ arXiv:0706.2360 (*cross-listing*) replaced with revised version Sun, 28 Oct 2007 18:24:52 GMT (525kb) Title: Magnetorotational collapse of very massive stars to black holes in full general relativity Authors: Yuk Tung Liu, Stuart L. Shapiro, Branson C. Stephens (UIUC) Categories: astro-ph gr-qc Comments: 17 pages, 13 figures, replaced with the published version Journal-ref: Phys.Rev.D 76 (2007) 084017 \\ ( http://arxiv.org/abs/0706.2360 , 525kb) ------------------------------------------------------------------------------ \\ arXiv:0706.3890 replaced with revised version Sun, 28 Oct 2007 05:33:31 GMT (13kb) Title: Hawking Radiation via Tunneling from Hot NUT-Kerr-Newman-Kasuya Spacetime Authors: M. Hossain Ali Categories: gr-qc hep-th Comments: To appear in Class. Quant. Grav \\ ( http://arxiv.org/abs/0706.3890 , 13kb) ------------------------------------------------------------------------------ \\ arXiv:0707.1816 replaced with revised version Mon, 29 Oct 2007 13:05:18 GMT (12kb) Title: Open FRW model in Loop Quantum Cosmology Authors: Lukasz Szulc Categories: gr-qc Comments: 12 pages, no figures, latex \\ ( http://arxiv.org/abs/0707.1816 , 12kb) ------------------------------------------------------------------------------ \\ arXiv:0707.2303 (*cross-listing*) replaced with revised version Mon, 29 Oct 2007 15:59:11 GMT (381kb) Title: The Refractive Index of Curved Spacetime: the Fate of Causality in QED Authors: Timothy J. Hollowood and Graham M. Shore Categories: hep-th gr-qc Comments: 43 pages, 19 figures, JHEP3, conclusions respecting microcausality modified \\ ( http://arxiv.org/abs/0707.2303 , 381kb) ------------------------------------------------------------------------------ \\ arXiv:0707.2848 (*cross-listing*) replaced with revised version Mon, 29 Oct 2007 08:39:53 GMT (158kb) Title: Prospects of inflation in delicate D-brane cosmology Authors: Sudhakar Panda, M. Sami, Shinji Tsujikawa Categories: hep-th astro-ph gr-qc hep-ph Comments: 12 pages, 8 figures, version to appear in Physical Review D \\ ( http://arxiv.org/abs/0707.2848 , 158kb) ------------------------------------------------------------------------------ \\ arXiv:0707.3475 (*cross-listing*) replaced with revised version Mon, 29 Oct 2007 16:00:17 GMT (509kb) Title: Electric field of a pointlike charge in a strong magnetic field and ground state of a hydrogenlike atom Authors: A. E. Shabad, V. V. Usov Categories: astro-ph gr-qc hep-lat hep-ph hep-th physics.atom-ph Comments: 45 pages, 6 figures, accepted to Phys. Rev. D \\ ( http://arxiv.org/abs/0707.3475 , 509kb) ------------------------------------------------------------------------------ \\ arXiv:0708.3209 (*cross-listing*) replaced with revised version Mon, 29 Oct 2007 15:52:34 GMT (40kb) Title: Relativistic Aberration for Accelerating Observers Authors: Robert Beig, J. Mark Heinzle Categories: physics.class-ph gr-qc Comments: 7 figures; subject: special relativity; pedagogical article; replaced to match version appearing in Am. J. Phys \\ ( http://arxiv.org/abs/0708.3209 , 40kb) ------------------------------------------------------------------------------ \\ arXiv:0708.3622 (*cross-listing*) replaced with revised version Mon, 29 Oct 2007 16:17:02 GMT (362kb) Title: On cosmological observables in a swiss-cheese universe Authors: Valerio Marra, Edward W. Kolb, Sabino Matarrese, Antonio Riotto Categories: astro-ph gr-qc Comments: 25 pages, 21 figures; replaced to fit the version accepted for publication in Phys. Rev. D \\ ( http://arxiv.org/abs/0708.3622 , 362kb) ------------------------------------------------------------------------------ \\ arXiv:0710.1378 replaced with revised version Sun, 28 Oct 2007 22:30:04 GMT (108kb) Title: Generation and detection of gravitational waves at microwave frequencies by means of a superconducting two-body system Authors: Raymond Y. Chiao Categories: gr-qc Comments: 12 pages, 3 figures, 'Time and Matter' conference,10-09a-07 version with acknowledgments added, and with the mention of linear induction generator added on page 3, and entangled states on pages 9 and 10 \\ ( http://arxiv.org/abs/0710.1378 , 108kb) ------------------------------------------------------------------------------ \\ arXiv:0710.3670 (*cross-listing*) replaced with revised version Sun, 28 Oct 2007 17:39:11 GMT (74kb,D) Title: Generalized Israel Junction Conditions for a Fourth-Order Brane World Authors: Adam Balcerzak and Mariusz P. Dabrowski Categories: hep-th astro-ph gr-qc Comments: REVTEX4, 7 pages, 1 figure \\ ( http://arxiv.org/abs/0710.3670 , 74kb) ------------------------------------------------------------------------------ \\ arXiv:0710.4153 replaced with revised version Sun, 28 Oct 2007 12:43:50 GMT (51kb,D) Title: Quantum Indeterminacy of Emergent Spacetime Authors: Craig J. Hogan Categories: gr-qc astro-ph hep-th \\ ( http://arxiv.org/abs/0710.4153 , 51kb) %%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%--- For subscribe options to combined physics archives, e-mail To: physics@arXiv.org, Subject: subscribe ----------------------------------------------------------------------------- For help on viewing and making submissions, see http://arXiv.org/help/ For a list of archive mirror sites, see http://arXiv.org/servers.html ----------------------------------------------------------------------------- Third-party submissions cause excessive problems. Author self-submissions are exceedingly preferred. E-mail submissions have been discontinued in favor of better support for Web submissions. See http://arXiv.org/help/uploads