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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
gr-qc/0505061 | Sawa Manoff | Sawa Manoff | Standard emitters (clocks) and calibrated standard emitters (clocks) in
spaces with affine connections and metrics | 18 pages, LaTeX | null | null | null | gr-qc | null | It is shown that the general belief that the frequency and the absolute value
of the velocity of periodic signals sent by a standard emitter do not change on
the world line of the emitter needs to be revised and new conditions for the
existence of a calibrted standard emitter should be taken into account. The
notions... | [
{
"created": "Thu, 12 May 2005 13:09:19 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Manoff",
"Sawa",
""
]
] | It is shown that the general belief that the frequency and the absolute value of the velocity of periodic signals sent by a standard emitter do not change on the world line of the emitter needs to be revised and new conditions for the existence of a calibrted standard emitter should be taken into account. The notions o... |
1111.0730 | Liu Zhao | Wei Xu, Kun Meng and Liu Zhao | Accelerating BTZ spacetime | 15 pages. v2: minor modifications and an extra reference; v3: version
to appear in CQG | Class. Quantum Grav. 29 (2012) 155005 | 10.1088/0264-9381/29/15/155005 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | An exact solution of $(2+1)$-dimensional Einstein gravity with cosmological
constant is studied. The corresponding spacetime is interpreted as an
accelerating BTZ spacetime. The proper acceleration, horizon structure,
temperature and entropy are presented in detail. The metric being studied is
very similar to the one... | [
{
"created": "Thu, 3 Nov 2011 05:18:57 GMT",
"version": "v1"
},
{
"created": "Sat, 5 Nov 2011 00:47:17 GMT",
"version": "v2"
},
{
"created": "Wed, 13 Jun 2012 01:28:36 GMT",
"version": "v3"
}
] | 2015-06-03 | [
[
"Xu",
"Wei",
""
],
[
"Meng",
"Kun",
""
],
[
"Zhao",
"Liu",
""
]
] | An exact solution of $(2+1)$-dimensional Einstein gravity with cosmological constant is studied. The corresponding spacetime is interpreted as an accelerating BTZ spacetime. The proper acceleration, horizon structure, temperature and entropy are presented in detail. The metric being studied is very similar to the one s... |
0705.2203 | Calvin Smith | Calvin J. Smith | An absolute quantum energy inequality for the Dirac field in curved
spacetime | null | Class.Quant.Grav.24:4733-4750,2007 | 10.1088/0264-9381/24/18/012 | null | gr-qc | null | Quantum Weak Energy Inequalities (QWEIs) are results which limit the extent
to which the smeared renormalised energy density of a quantum field can be
negative. On globally hyperbolic spacetimes the massive quantum Dirac field is
known to obey a QWEI in terms of a reference state chosen arbitrarily from the
class of ... | [
{
"created": "Tue, 15 May 2007 18:00:47 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Smith",
"Calvin J.",
""
]
] | Quantum Weak Energy Inequalities (QWEIs) are results which limit the extent to which the smeared renormalised energy density of a quantum field can be negative. On globally hyperbolic spacetimes the massive quantum Dirac field is known to obey a QWEI in terms of a reference state chosen arbitrarily from the class of Ha... |
1605.07609 | Jorge A. Rueda | J. F. Rodriguez, J. A. Rueda, R. Ruffini | What can we really infer from GW 150914? (II) | submitted to PRD. arXiv admin note: substantial text overlap with
arXiv:1605.04767 | null | null | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In a recent letter we have outlined some issues on GW 150914, we hereby give
additional details. We analyze the event GW 150914 announced by the Advanced
Laser Interferometer Gravitational-Wave Observatory (LIGO) as the
gravitational-wave emission of a black-hole binary merger. We show that the
parameters of the coal... | [
{
"created": "Tue, 24 May 2016 11:24:17 GMT",
"version": "v1"
}
] | 2016-05-26 | [
[
"Rodriguez",
"J. F.",
""
],
[
"Rueda",
"J. A.",
""
],
[
"Ruffini",
"R.",
""
]
] | In a recent letter we have outlined some issues on GW 150914, we hereby give additional details. We analyze the event GW 150914 announced by the Advanced Laser Interferometer Gravitational-Wave Observatory (LIGO) as the gravitational-wave emission of a black-hole binary merger. We show that the parameters of the coales... |
2011.13490 | George Hobbs | N. Yonemaru, S. Kuroyanagi, G. Hobbs, K. Takahashi, X.-J. Zhu, W. A.
Coles, S. Dai, E. Howard, R. Manchester, D. Reardon, C. Russell, R. Shannon,
N. Thyagarajan, R. Spiewak, J.-B. Wang | Searching for gravitational wave bursts from cosmic string cusps with
the Parkes Pulsar Timing Array | Accepted for publication by MNRAS | null | 10.1093/mnras/staa3721 | null | gr-qc astro-ph.CO | http://creativecommons.org/licenses/by/4.0/ | Cosmic strings are potential gravitational wave (GW) sources that can be
probed by pulsar timing arrays (PTAs). In this work we develop a detection
algorithm for a GW burst from a cusp on a cosmic string, and apply it to Parkes
PTA data. We find four events with a false alarm probability less than 1%.
However further... | [
{
"created": "Thu, 26 Nov 2020 23:06:52 GMT",
"version": "v1"
}
] | 2020-12-09 | [
[
"Yonemaru",
"N.",
""
],
[
"Kuroyanagi",
"S.",
""
],
[
"Hobbs",
"G.",
""
],
[
"Takahashi",
"K.",
""
],
[
"Zhu",
"X. -J.",
""
],
[
"Coles",
"W. A.",
""
],
[
"Dai",
"S.",
""
],
[
"Howard",
"E.",
... | Cosmic strings are potential gravitational wave (GW) sources that can be probed by pulsar timing arrays (PTAs). In this work we develop a detection algorithm for a GW burst from a cusp on a cosmic string, and apply it to Parkes PTA data. We find four events with a false alarm probability less than 1%. However further i... |
gr-qc/9902012 | Oscar Alejandro Reula | Mirta S. Iriondo, Enzo O. Leguizamon and Oscar A. Reula | A comment on gr-qc/9901053 | null | null | null | null | gr-qc | null | In eprint gr-qc/9901053 Gen Yoneda and Hisa-aki Shinkai have made several
claims disputing our results in gr-qc/9710004, and gr-qc/9804019. We show here
that these claims are not correct.
| [
{
"created": "Wed, 3 Feb 1999 17:10:37 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Iriondo",
"Mirta S.",
""
],
[
"Leguizamon",
"Enzo O.",
""
],
[
"Reula",
"Oscar A.",
""
]
] | In eprint gr-qc/9901053 Gen Yoneda and Hisa-aki Shinkai have made several claims disputing our results in gr-qc/9710004, and gr-qc/9804019. We show here that these claims are not correct. |
2206.02725 | Sebasti\'an Bahamonde Dr | Sebastian Bahamonde, Jorge Gigante Valcarcel, Laur J\"arv, Joosep
Lember | Black hole solutions in scalar-tensor symmetric teleparallel gravity | Matches published version in JCAP. 24 pages, 1 figure | JCAP08(2022)082 | 10.1088/1475-7516/2022/08/082 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Symmetric teleparallel gravity is constructed with a nonzero nonmetricity
tensor while both torsion and curvature are vanishing. In this framework, we
find exact scalarised spherically symmetric static solutions in scalar-tensor
theories built with a nonminimal coupling between the nonmetricity scalar and a
scalar fi... | [
{
"created": "Mon, 6 Jun 2022 16:35:09 GMT",
"version": "v1"
},
{
"created": "Fri, 2 Sep 2022 00:21:34 GMT",
"version": "v2"
}
] | 2022-09-05 | [
[
"Bahamonde",
"Sebastian",
""
],
[
"Valcarcel",
"Jorge Gigante",
""
],
[
"Järv",
"Laur",
""
],
[
"Lember",
"Joosep",
""
]
] | Symmetric teleparallel gravity is constructed with a nonzero nonmetricity tensor while both torsion and curvature are vanishing. In this framework, we find exact scalarised spherically symmetric static solutions in scalar-tensor theories built with a nonminimal coupling between the nonmetricity scalar and a scalar fiel... |
0712.1180 | R. M. Kiehn | R. M. Kiehn | Part I. The Cosmological Vacuum from a Topological Perspective | 70 pages, 5 figures | null | null | null | gr-qc | null | This article examines how the physical presence of field energy and
particulate matter can be interpreted in terms of the topological properties of
space-time. The theory is developed in terms of vector and matrix equations of
exterior differential systems, which are not constrained by tensor
diffeomorphic equivalenc... | [
{
"created": "Fri, 7 Dec 2007 16:30:57 GMT",
"version": "v1"
}
] | 2007-12-10 | [
[
"Kiehn",
"R. M.",
""
]
] | This article examines how the physical presence of field energy and particulate matter can be interpreted in terms of the topological properties of space-time. The theory is developed in terms of vector and matrix equations of exterior differential systems, which are not constrained by tensor diffeomorphic equivalences... |
2011.11192 | Sebasti\'an N\'ajera Valencia | Sebasti\'an N\'ajera and Roberto A. Sussman | Non-comoving Cold Dark Matter in a $\Lambda$CDM background | 15 pages, 8 figures | Eur. Phys. J. C 81, 374 (2021) | 10.1140/epjc/s10052-021-09154-0 | null | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We examine the evolution of peculiar velocities of cold dark matter (CDM) in
localized arrays of inhomogeneous cosmic structures in a $\Lambda$CDM
background that can be identified as a frame comoving with the Cosmic Microwave
(CMB). These arrays are constructed by smoothly matching to this cosmological
background re... | [
{
"created": "Mon, 23 Nov 2020 03:15:50 GMT",
"version": "v1"
},
{
"created": "Tue, 24 Nov 2020 03:34:53 GMT",
"version": "v2"
},
{
"created": "Mon, 12 Apr 2021 20:17:41 GMT",
"version": "v3"
}
] | 2021-05-03 | [
[
"Nájera",
"Sebastián",
""
],
[
"Sussman",
"Roberto A.",
""
]
] | We examine the evolution of peculiar velocities of cold dark matter (CDM) in localized arrays of inhomogeneous cosmic structures in a $\Lambda$CDM background that can be identified as a frame comoving with the Cosmic Microwave (CMB). These arrays are constructed by smoothly matching to this cosmological background regi... |
2102.00124 | Beatriz Elizaga Navascu\'es | Beatriz Elizaga Navascu\'es and Guillermo A. Mena Marug\'an | Quantization ambiguities and the robustness of effective descriptions of
primordial perturbations in hybrid Loop Quantum Cosmology | 13 pages | Class. Quantum Grav. 39, 015017 (2021) | 10.1088/1361-6382/ac3b9b | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the imprint that certain quantization ambiguities may leave in
effective regimes of the hybrid loop quantum description of cosmological
perturbations. More specifically, in the case of scalar perturbations we
investigate how to reconstruct the Mukhanov-Sasaki field in the effective
regime of Loop Quantum Cos... | [
{
"created": "Sat, 30 Jan 2021 01:23:08 GMT",
"version": "v1"
},
{
"created": "Fri, 10 Sep 2021 02:24:40 GMT",
"version": "v2"
},
{
"created": "Sun, 26 Dec 2021 16:43:59 GMT",
"version": "v3"
}
] | 2021-12-28 | [
[
"Navascués",
"Beatriz Elizaga",
""
],
[
"Marugán",
"Guillermo A. Mena",
""
]
] | We study the imprint that certain quantization ambiguities may leave in effective regimes of the hybrid loop quantum description of cosmological perturbations. More specifically, in the case of scalar perturbations we investigate how to reconstruct the Mukhanov-Sasaki field in the effective regime of Loop Quantum Cosmo... |
1310.7097 | Arturo Stabile | A. Stabile, An. Stabile, S. Capozziello | Conformal Transformations and Weak Field Limit of Scalar-Tensor Gravity | 11 pages, preliminary version | Phys. Rev. D 88, 124011 (2013) | 10.1103/PhysRevD.88.124011 | null | gr-qc astro-ph.EP astro-ph.GA | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The weak field limit of scalar tensor theories of gravity is discussed in
view of conformal transformations. Specifically, we consider how physical
quantities, like gravitational potentials derived in the Newtonian
approximation for the same scalar-tensor theory, behave in the Jordan and in
the Einstein frame. The ap... | [
{
"created": "Sat, 26 Oct 2013 10:59:10 GMT",
"version": "v1"
},
{
"created": "Wed, 4 Dec 2013 18:30:54 GMT",
"version": "v2"
}
] | 2015-02-25 | [
[
"Stabile",
"A.",
""
],
[
"Stabile",
"An.",
""
],
[
"Capozziello",
"S.",
""
]
] | The weak field limit of scalar tensor theories of gravity is discussed in view of conformal transformations. Specifically, we consider how physical quantities, like gravitational potentials derived in the Newtonian approximation for the same scalar-tensor theory, behave in the Jordan and in the Einstein frame. The appr... |
1706.06440 | Jorge A. Rueda | J. F. Rodriguez, J. A. Rueda, R. Ruffini | Strong-field gravitational-wave emission in Schwarzschild and Kerr
geometries: some general considerations | Resubmitted to PRD after Referee report | null | null | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We show how the concurrent implementation of the exact solutions of the
Einstein equations, of the equations of motion of the test particles, and of
the relativistic estimate of the emission of gravitational waves from test
particles, can establish a priori constraints on the possible phenomena
occurring in Nature. T... | [
{
"created": "Tue, 20 Jun 2017 13:53:12 GMT",
"version": "v1"
},
{
"created": "Tue, 20 Mar 2018 17:29:38 GMT",
"version": "v2"
}
] | 2018-03-21 | [
[
"Rodriguez",
"J. F.",
""
],
[
"Rueda",
"J. A.",
""
],
[
"Ruffini",
"R.",
""
]
] | We show how the concurrent implementation of the exact solutions of the Einstein equations, of the equations of motion of the test particles, and of the relativistic estimate of the emission of gravitational waves from test particles, can establish a priori constraints on the possible phenomena occurring in Nature. Two... |
2311.08446 | Anuj Mishra | Anuj Mishra, N. V. Krishnendu, Apratim Ganguly | Unveiling Microlensing Biases in Testing General Relativity with
Gravitational Waves | 21 pages, 12 figures | null | null | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Gravitational waves (GW) from chirping binary black holes (BBHs) provide
unique opportunities to test general relativity (GR) in the strong-field
regime. However, testing GR can be challenging when incomplete physical
modeling of the expected signal gives rise to systematic biases. In this study,
we investigate the p... | [
{
"created": "Tue, 14 Nov 2023 18:48:58 GMT",
"version": "v1"
}
] | 2023-11-16 | [
[
"Mishra",
"Anuj",
""
],
[
"Krishnendu",
"N. V.",
""
],
[
"Ganguly",
"Apratim",
""
]
] | Gravitational waves (GW) from chirping binary black holes (BBHs) provide unique opportunities to test general relativity (GR) in the strong-field regime. However, testing GR can be challenging when incomplete physical modeling of the expected signal gives rise to systematic biases. In this study, we investigate the pot... |
1711.07558 | Shahram Panahiyan | Seyed Hossein Hendi, Behzad Eslam Panah, Shahram Panahiyan and Mehrab
Momennia | Magnetic solutions in Einstein-massive gravity with linear and nonlinear
fields | 12 pages, 5 figures, Matches published version | Eur. Phys. J. C 78 (2018) 432 | 10.1140/epjc/s10052-018-5914-x | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The solutions of $U(1)$ gauge-gravity coupling is one of the interesting
models for analyzing the semi-classical nature of spacetime. In this regard,
different well-known singular and nonsingular solutions have been taken into
account. The paper at hand investigates the geometrical properties of the
magnetic solution... | [
{
"created": "Mon, 20 Nov 2017 21:44:04 GMT",
"version": "v1"
},
{
"created": "Tue, 5 Jun 2018 08:54:50 GMT",
"version": "v2"
}
] | 2018-06-06 | [
[
"Hendi",
"Seyed Hossein",
""
],
[
"Panah",
"Behzad Eslam",
""
],
[
"Panahiyan",
"Shahram",
""
],
[
"Momennia",
"Mehrab",
""
]
] | The solutions of $U(1)$ gauge-gravity coupling is one of the interesting models for analyzing the semi-classical nature of spacetime. In this regard, different well-known singular and nonsingular solutions have been taken into account. The paper at hand investigates the geometrical properties of the magnetic solutions ... |
2206.10652 | Dongjun Li | Dongjun Li, Pratik Wagle, Yanbei Chen, Nicol\'as Yunes | Perturbations of spinning black holes beyond General Relativity:
Modified Teukolsky equation | 33 pages, 2 figures, 1 table | null | 10.1103/PhysRevX.13.021029 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The detection of gravitational waves from compact binary mergers by the
LIGO/Virgo collaboration has, for the first time, allowed for tests of
relativistic gravity in the strong, dynamical and nonlinear regime. Outside
Einstein's relativity, spinning black holes may be different from their general
relativistic counte... | [
{
"created": "Tue, 21 Jun 2022 18:04:48 GMT",
"version": "v1"
},
{
"created": "Thu, 25 May 2023 15:16:59 GMT",
"version": "v2"
}
] | 2023-05-26 | [
[
"Li",
"Dongjun",
""
],
[
"Wagle",
"Pratik",
""
],
[
"Chen",
"Yanbei",
""
],
[
"Yunes",
"Nicolás",
""
]
] | The detection of gravitational waves from compact binary mergers by the LIGO/Virgo collaboration has, for the first time, allowed for tests of relativistic gravity in the strong, dynamical and nonlinear regime. Outside Einstein's relativity, spinning black holes may be different from their general relativistic counterp... |
2109.14457 | Petr Tretyakov | Petr V. Tretyakov | Bianchi I cosmological solutions in teleparallel gravity | null | MPLA V.37, No. 08, 2250046 (2022) | 10.1142/S0217732322500468 | null | gr-qc | http://creativecommons.org/licenses/by-nc-sa/4.0/ | In the present paper we discuss dynamic of anisotropic Bianchi I Universe
filled by the perfect fluid in teleparallel $f(T)$-gravity. By using as
analytical as numerical approaches we confirm the main results of previous
authors such as presence of future isotropic attractor and find a number of the
new one such as e... | [
{
"created": "Wed, 29 Sep 2021 14:46:05 GMT",
"version": "v1"
},
{
"created": "Fri, 22 Apr 2022 09:20:41 GMT",
"version": "v2"
}
] | 2022-04-25 | [
[
"Tretyakov",
"Petr V.",
""
]
] | In the present paper we discuss dynamic of anisotropic Bianchi I Universe filled by the perfect fluid in teleparallel $f(T)$-gravity. By using as analytical as numerical approaches we confirm the main results of previous authors such as presence of future isotropic attractor and find a number of the new one such as exi... |
gr-qc/0108020 | Vladimir | V. Dzhunushaliev, H.-J. Schmidt and O. Rurenko | Spherically Symmetric solutions in Multidimensional Gravity with the
SU(2) Gauge Group as the Extra Dimensions | misprints are corrected | Int.J.Mod.Phys. D11 (2002) 685-702 | 10.1142/S0218271802001925 | null | gr-qc hep-th | null | The multidimensional gravity on the principal bundle with the SU(2) gauge
group is considered. The numerical investigation of the spherically symmetric
metrics with the center of symmetry is made. The solution of the gravitational
equations depends on the boundary conditions of the ``SU(2) gauge potential''
(off-diag... | [
{
"created": "Wed, 8 Aug 2001 06:37:45 GMT",
"version": "v1"
},
{
"created": "Mon, 20 Aug 2001 12:30:41 GMT",
"version": "v2"
}
] | 2009-11-07 | [
[
"Dzhunushaliev",
"V.",
""
],
[
"Schmidt",
"H. -J.",
""
],
[
"Rurenko",
"O.",
""
]
] | The multidimensional gravity on the principal bundle with the SU(2) gauge group is considered. The numerical investigation of the spherically symmetric metrics with the center of symmetry is made. The solution of the gravitational equations depends on the boundary conditions of the ``SU(2) gauge potential'' (off-diagon... |
gr-qc/0504135 | Amjad Ashoorioon | A. Ashoorioon, J. L. Hovdebo, R. B. Mann | Running of the Spectral Index and Violation of the Consistency Relation
Between Tensor and Scalar Spectra from trans-Planckian Physics | v1: 18 pages, 8 figures; v4: matched with the NPB version | Nucl.Phys. B727 (2005) 63-76 | 10.1016/j.nuclphysb.2005.08.020 | null | gr-qc astro-ph hep-th | null | One of the firm predictions of inflationary cosmology is the consistency
relation between scalar and tensor spectra. It has been argued that such a
relation -if experimentally confirmed- would offer strong support for the idea
of inflation. We examine the possibility that trans-Planckian physics violates
the consiste... | [
{
"created": "Wed, 27 Apr 2005 22:06:21 GMT",
"version": "v1"
},
{
"created": "Mon, 2 May 2005 19:24:01 GMT",
"version": "v2"
},
{
"created": "Wed, 22 Jun 2005 00:28:06 GMT",
"version": "v3"
},
{
"created": "Mon, 3 Oct 2005 22:19:51 GMT",
"version": "v4"
}
] | 2016-08-31 | [
[
"Ashoorioon",
"A.",
""
],
[
"Hovdebo",
"J. L.",
""
],
[
"Mann",
"R. B.",
""
]
] | One of the firm predictions of inflationary cosmology is the consistency relation between scalar and tensor spectra. It has been argued that such a relation -if experimentally confirmed- would offer strong support for the idea of inflation. We examine the possibility that trans-Planckian physics violates the consistenc... |
2107.08844 | Yen Chin Ong | Yuanyuan Duan, Fangxun Liu, Yu Wang, Yen Chin Ong | On the Counter-Rotation of Closed Timelike Curves | An undergraduate research project. 5 pages | Universe 8 (2022) 28 | 10.3390/universe8010028 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | While it is tempting to think of closed timelike curves (CTCs) around
rotating bodies such as a black hole as being "caused" by the rotation of the
source, Andr\'eka et al. pointed out that the underlying physics is not as
straightforward since such CTCs are "counter-rotating", i.e., the time
orientation (the opening... | [
{
"created": "Mon, 19 Jul 2021 13:02:24 GMT",
"version": "v1"
}
] | 2022-02-01 | [
[
"Duan",
"Yuanyuan",
""
],
[
"Liu",
"Fangxun",
""
],
[
"Wang",
"Yu",
""
],
[
"Ong",
"Yen Chin",
""
]
] | While it is tempting to think of closed timelike curves (CTCs) around rotating bodies such as a black hole as being "caused" by the rotation of the source, Andr\'eka et al. pointed out that the underlying physics is not as straightforward since such CTCs are "counter-rotating", i.e., the time orientation (the opening o... |
0808.0905 | Tomas Liko | Ivan Booth, Tomas Liko | Supersymmetric isolated horizons in ADS spacetime | 15 pages, 1 figure; v2: two references added; minor corrections; to
appear in Physics Letters B | Phys.Lett.B670:61-66,2008 | 10.1016/j.physletb.2008.10.020 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We discuss various physical aspects of nonextremal, extremal and
supersymmetric black holes in asymptotically anti-de Sitter (ADS) spacetimes.
Specifically, we discuss how the isolated horizon (IH) framework leads to an
ambiguity-free description of rotating black holes in these spacetimes. We then
apply this framewo... | [
{
"created": "Wed, 6 Aug 2008 19:18:38 GMT",
"version": "v1"
},
{
"created": "Mon, 13 Oct 2008 03:23:04 GMT",
"version": "v2"
}
] | 2008-12-18 | [
[
"Booth",
"Ivan",
""
],
[
"Liko",
"Tomas",
""
]
] | We discuss various physical aspects of nonextremal, extremal and supersymmetric black holes in asymptotically anti-de Sitter (ADS) spacetimes. Specifically, we discuss how the isolated horizon (IH) framework leads to an ambiguity-free description of rotating black holes in these spacetimes. We then apply this framework... |
gr-qc/0010005 | Sergey S. Kokarev | Sergey S. Kokarev | Space-time as multidimensional elastic plate | 12 pages, 3 TexCad figures, Latex2e | Nuovo Cim. B113 (1998) 1339-1350 | null | null | gr-qc | null | It is suggested, that a curved 4-dimensional space-time manifold is a
strained elastic plate in multidimensional embedding space-time. Its
thicknesses along extradimensions are much less than 4-dimensional sizes.
Reduced 4-dimensional free energy density of the strained plate in a weak
strain case is similar to GR La... | [
{
"created": "Mon, 2 Oct 2000 17:56:29 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Kokarev",
"Sergey S.",
""
]
] | It is suggested, that a curved 4-dimensional space-time manifold is a strained elastic plate in multidimensional embedding space-time. Its thicknesses along extradimensions are much less than 4-dimensional sizes. Reduced 4-dimensional free energy density of the strained plate in a weak strain case is similar to GR Lagr... |
1909.04603 | Hyat Huang | Hyat Huang, Jinbo Yang | Charged Ellis Wormhole and Black Bounce | 27 papes, 8 figures, accepted for publication in Phys. Rev. D | Phys. Rev. D 100, 124063 (2019) | 10.1103/PhysRevD.100.124063 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | By replacing the scalar $\phi$ with $i\phi$ in the solution constructed in
Ref\cite{Huang:2019lsl}, we obtain electrically-charged wormhole and black hole
solutions in the Einstein-Maxwell-scalar theory, in which the scalar is a
phantom field coupled to the Maxwell field non-minimally. Our solutions are
simpler than ... | [
{
"created": "Tue, 10 Sep 2019 16:19:19 GMT",
"version": "v1"
},
{
"created": "Tue, 19 Nov 2019 05:16:55 GMT",
"version": "v2"
}
] | 2020-01-08 | [
[
"Huang",
"Hyat",
""
],
[
"Yang",
"Jinbo",
""
]
] | By replacing the scalar $\phi$ with $i\phi$ in the solution constructed in Ref\cite{Huang:2019lsl}, we obtain electrically-charged wormhole and black hole solutions in the Einstein-Maxwell-scalar theory, in which the scalar is a phantom field coupled to the Maxwell field non-minimally. Our solutions are simpler than th... |
1707.00979 | Pardyumn Kumar Sahoo | P.K. Sahoo, Parbati Sahoo, Binaya K. Bishi, Sezgin Ayg\"un | Magnetized strange quark matter in $f(R,T)$ gravity with bilinear and
special form of time varying deceleration parameter | 11 pages, 24 figures, to appear in New Astronomy | New Astronomy, Vol. 60 (2018) 80-87 | 10.1016/j.newast.2017.10.010 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper, we have studied homogeneous and anisotropic, locally
rotationally symmetric (LRS) Bianchi type-I universe model with magnetized
strange quark matter (MSQM) distribution and cosmological constant $\Lambda$ in
$f(R,T)$ gravity. The exact solutions of the field equations are obtained under
bilinear and sp... | [
{
"created": "Sat, 1 Jul 2017 07:02:56 GMT",
"version": "v1"
},
{
"created": "Sat, 28 Oct 2017 10:43:49 GMT",
"version": "v2"
}
] | 2017-11-07 | [
[
"Sahoo",
"P. K.",
""
],
[
"Sahoo",
"Parbati",
""
],
[
"Bishi",
"Binaya K.",
""
],
[
"Aygün",
"Sezgin",
""
]
] | In this paper, we have studied homogeneous and anisotropic, locally rotationally symmetric (LRS) Bianchi type-I universe model with magnetized strange quark matter (MSQM) distribution and cosmological constant $\Lambda$ in $f(R,T)$ gravity. The exact solutions of the field equations are obtained under bilinear and spec... |
0808.3074 | Claude Warnick | G.W. Gibbons, C.M. Warnick, M.C. Werner | Light-bending in Schwarzschild-de-Sitter: projective geometry of the
optical metric | 8 pages | Class.Quant.Grav.25:245009,2008 | 10.1088/0264-9381/25/24/245009 | DAMTP-2008-74 | gr-qc astro-ph hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We interpret the well known fact that the equations for light rays in the
Kottler or Schwarzschild-de Sitter metric are independent of the cosmological
constant in terms of the projective equivalence of the optical metric for any
value of \Lambda. We explain why this does not imply that lensing phenomena are
independ... | [
{
"created": "Fri, 22 Aug 2008 12:55:07 GMT",
"version": "v1"
}
] | 2008-12-18 | [
[
"Gibbons",
"G. W.",
""
],
[
"Warnick",
"C. M.",
""
],
[
"Werner",
"M. C.",
""
]
] | We interpret the well known fact that the equations for light rays in the Kottler or Schwarzschild-de Sitter metric are independent of the cosmological constant in terms of the projective equivalence of the optical metric for any value of \Lambda. We explain why this does not imply that lensing phenomena are independen... |
2201.07662 | Robert Penna | Robert F. Penna | Gravitational Pulse Wave Scattering and the Geroch group | null | null | null | null | gr-qc hep-th | http://creativecommons.org/licenses/by/4.0/ | Cylindrical gravitational pulse waves are cylindrical gravitational waves
with a pulse profile in the radial direction. The dynamics of cylindrical
gravitational pulse waves is governed by a two dimensional integrable sigma
model with an infinite dimensional hidden symmetry called the Geroch group.
Piran, Safier, and... | [
{
"created": "Wed, 19 Jan 2022 15:34:29 GMT",
"version": "v1"
}
] | 2022-01-20 | [
[
"Penna",
"Robert F.",
""
]
] | Cylindrical gravitational pulse waves are cylindrical gravitational waves with a pulse profile in the radial direction. The dynamics of cylindrical gravitational pulse waves is governed by a two dimensional integrable sigma model with an infinite dimensional hidden symmetry called the Geroch group. Piran, Safier, and K... |
gr-qc/0412053 | Alessandro D. A. M. Spallicci | Bertrand Chauvineau, Alessandro D.A.M. Spallicci, Jean-Daniel Fournier | Brans-Dicke gravity and the capture of stars by black holes: some
asymptotic results | 4 pages. Submitted to Classical and Quantum Gravity | Class.Quant.Grav. 22 (2005) S457-S460 | 10.1088/0264-9381/22/10/043 | null | gr-qc | null | In the context of star capture by a black hole, a new noticeable difference
between Brans-Dicke theory and general relativity gravitational radiation is
pointed out. This feature stems from the non-stationarity of the black hole
state, barring Hawking's theorem.
| [
{
"created": "Sun, 12 Dec 2004 14:05:00 GMT",
"version": "v1"
}
] | 2009-11-10 | [
[
"Chauvineau",
"Bertrand",
""
],
[
"Spallicci",
"Alessandro D. A. M.",
""
],
[
"Fournier",
"Jean-Daniel",
""
]
] | In the context of star capture by a black hole, a new noticeable difference between Brans-Dicke theory and general relativity gravitational radiation is pointed out. This feature stems from the non-stationarity of the black hole state, barring Hawking's theorem. |
2302.14405 | Salih Kibaro\u{g}lu | Salih Kibaro\u{g}lu | Born-Infeld-$f(R)$ gravity with de Sitter solutions | 7 pages. The paper is accepted for publication in IJGMMP | IJGMMP Vol. 20, No. 08, 2350141 (2023) | 10.1142/S0219887823501414 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this study, we consider the Born--Infeld-$f(R)$ gravity in which the
$f(R)$ term enters directly into the square root in the Palatini formulation.
We shortly analyzed this model for an explicit $f(R)$ function which includes
positive and negative powers of the curvature scalar. We also show that both
the ordinary ... | [
{
"created": "Tue, 28 Feb 2023 08:40:00 GMT",
"version": "v1"
}
] | 2023-05-30 | [
[
"Kibaroğlu",
"Salih",
""
]
] | In this study, we consider the Born--Infeld-$f(R)$ gravity in which the $f(R)$ term enters directly into the square root in the Palatini formulation. We shortly analyzed this model for an explicit $f(R)$ function which includes positive and negative powers of the curvature scalar. We also show that both the ordinary Bo... |
gr-qc/0101110 | Ricardo Medina | R. Medina | Some remarks on the thermal and vacuum fluctuations of a massive scalar
field | 12 pages | null | null | null | gr-qc hep-th math-ph math.MP | null | Thermal fluctuations of a massive scalar field in the Rindler wedge have been
recently obtained. As a by product, the Minkowski vacuum fluctuations seen by a
uniformly accelerated observer have been determined and confronted with the
corresponding Minkowski thermal fluctuations of the same field, seen by an
inertial ... | [
{
"created": "Mon, 29 Jan 2001 12:07:47 GMT",
"version": "v1"
},
{
"created": "Fri, 2 Feb 2001 13:33:57 GMT",
"version": "v2"
}
] | 2007-05-23 | [
[
"Medina",
"R.",
""
]
] | Thermal fluctuations of a massive scalar field in the Rindler wedge have been recently obtained. As a by product, the Minkowski vacuum fluctuations seen by a uniformly accelerated observer have been determined and confronted with the corresponding Minkowski thermal fluctuations of the same field, seen by an inertial ob... |
2209.12415 | Yaling Li | Ya-Ling Li, Guo-Qing Huang, Zong-Qiang Huang, Fu-Wen Shu | Detecting sublunar-mass primordial black holes with the Earth-Moon
binary system | 23 pages, 16 figures | null | 10.1103/PhysRevD.107.084019 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper we propose a new way to detect sublunar-mass primordial black
holes (PBHs) by direct observations of the Earth-Moon binary system.Our method
is based on treating PBH as a perturbation term, by assuming that the PBH is
far away from the Earth-Moon binary (far greater than 1 AU) and the mass of the
PBH is... | [
{
"created": "Mon, 26 Sep 2022 04:45:56 GMT",
"version": "v1"
}
] | 2023-04-26 | [
[
"Li",
"Ya-Ling",
""
],
[
"Huang",
"Guo-Qing",
""
],
[
"Huang",
"Zong-Qiang",
""
],
[
"Shu",
"Fu-Wen",
""
]
] | In this paper we propose a new way to detect sublunar-mass primordial black holes (PBHs) by direct observations of the Earth-Moon binary system.Our method is based on treating PBH as a perturbation term, by assuming that the PBH is far away from the Earth-Moon binary (far greater than 1 AU) and the mass of the PBH is s... |
0909.3586 | Joakim Munkhammar | Joakim Munkhammar | Linearization of Moffat's Symmetric Complex Metric Gravity | 8 pages | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper we investigate a complex symmetric generalization of general
relativity and in particular we investigate its linearized field equations. We
begin by reviewing some basic definitions and structures in Moffat's symmetric
complex metric field theory of gravity. We then move on to derive the
linearized reta... | [
{
"created": "Sat, 19 Sep 2009 13:51:07 GMT",
"version": "v1"
}
] | 2009-09-22 | [
[
"Munkhammar",
"Joakim",
""
]
] | In this paper we investigate a complex symmetric generalization of general relativity and in particular we investigate its linearized field equations. We begin by reviewing some basic definitions and structures in Moffat's symmetric complex metric field theory of gravity. We then move on to derive the linearized retard... |
1205.2298 | Claudio Nassif Cruz | Cl\'audio Nassif Cruz (retired professor) and Ant\^onio Carlos Amaro
de Faria Jr | Variation of the speed of light with temperature of the expanding
universe | 3 pages and 1 figure; Phys. Rev. D86, 027703 (2012) | null | 10.1103/PhysRevD.86.027703 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | From an extended relativistic dynamics for a particle moving in a cosmic
background field with temperature T, we aim to obtain the speed of light with
an explicit dependence on the background temperature of the universe. Although
finding the speed of light in the early universe much larger than its current
value, our... | [
{
"created": "Thu, 10 May 2012 15:48:45 GMT",
"version": "v1"
},
{
"created": "Fri, 18 May 2012 12:50:55 GMT",
"version": "v2"
},
{
"created": "Mon, 18 Jun 2012 13:30:39 GMT",
"version": "v3"
},
{
"created": "Sun, 22 Jul 2012 15:55:28 GMT",
"version": "v4"
},
{
"c... | 2021-02-04 | [
[
"Cruz",
"Cláudio Nassif",
"",
"retired professor"
],
[
"Faria",
"Antônio Carlos Amaro de",
"Jr"
]
] | From an extended relativistic dynamics for a particle moving in a cosmic background field with temperature T, we aim to obtain the speed of light with an explicit dependence on the background temperature of the universe. Although finding the speed of light in the early universe much larger than its current value, our a... |
1004.1268 | Chao-Guang Huang | Chao-Guang Huang | Principle of Relativity, 24 possible kinematical algebras and new
geometries with Poincar\'e symmetry | 11 pages, talk on the 9th Asia-Pacific International Conference on
Gravitation and Astrophysics, Jun. 29-Jul. 2, Wuhan, China | null | 10.1142/9789814307673_0012 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | From the principle of relativity with two universal invariant parameters $c$
and $l$, 24 possible kinematical (including geometrical and static) algebras
can be obtained. Each algebra is of 10 dimensional, generating the symmetry of
a 4 dimensional homogeneous space-time or a pure space. In addition to the
ordinary P... | [
{
"created": "Thu, 8 Apr 2010 07:24:45 GMT",
"version": "v1"
},
{
"created": "Fri, 9 Apr 2010 02:27:23 GMT",
"version": "v2"
}
] | 2017-08-23 | [
[
"Huang",
"Chao-Guang",
""
]
] | From the principle of relativity with two universal invariant parameters $c$ and $l$, 24 possible kinematical (including geometrical and static) algebras can be obtained. Each algebra is of 10 dimensional, generating the symmetry of a 4 dimensional homogeneous space-time or a pure space. In addition to the ordinary Poi... |
2306.17841 | Yann Gouttenoire Dr | Yann Gouttenoire, Edoardo Vitagliano | Domain wall interpretation of the PTA signal confronting black hole
overproduction | Major improvements of the PBH formation modeling, of the depth of the
Bayesian analysis and of the SMBH binary prior (5 pages, 4 figures +
appendix, 21 pages in total) | null | null | null | gr-qc astro-ph.CO hep-ph hep-th | http://creativecommons.org/licenses/by/4.0/ | Recently, Pulsar Timing Array (PTA) collaborations have detected a stochastic
gravitational wave background (SGWB) at nano-Hz frequencies, with Domain Wall
networks (DWs) proposed as potential sources. To be cosmologically viable, they
must annihilate before dominating the universe energy budget, thus generating a
SG... | [
{
"created": "Fri, 30 Jun 2023 17:58:14 GMT",
"version": "v1"
},
{
"created": "Wed, 15 Nov 2023 14:20:50 GMT",
"version": "v2"
}
] | 2023-11-16 | [
[
"Gouttenoire",
"Yann",
""
],
[
"Vitagliano",
"Edoardo",
""
]
] | Recently, Pulsar Timing Array (PTA) collaborations have detected a stochastic gravitational wave background (SGWB) at nano-Hz frequencies, with Domain Wall networks (DWs) proposed as potential sources. To be cosmologically viable, they must annihilate before dominating the universe energy budget, thus generating a SGWB... |
2106.03976 | Jean-Baptiste Bayle | Jean-Baptiste Bayle, Michele Vallisneri, Stanislav Babak, Antoine
Petiteau | On the matrix formulation of time-delay interferometry | Response to arXiv/2105.02054, 2 pages, no figures | null | null | null | gr-qc astro-ph.IM | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Time-delay interferometry (TDI) is a processing step essential for the
scientific exploitation of LISA, as it reduces the otherwise overwhelming laser
noise in the interferometric measurements. The fundamental idea is to define
new laser-noise-free observables by combining appropriately time-shifted
measurements. Fir... | [
{
"created": "Mon, 7 Jun 2021 21:37:46 GMT",
"version": "v1"
}
] | 2021-06-09 | [
[
"Bayle",
"Jean-Baptiste",
""
],
[
"Vallisneri",
"Michele",
""
],
[
"Babak",
"Stanislav",
""
],
[
"Petiteau",
"Antoine",
""
]
] | Time-delay interferometry (TDI) is a processing step essential for the scientific exploitation of LISA, as it reduces the otherwise overwhelming laser noise in the interferometric measurements. The fundamental idea is to define new laser-noise-free observables by combining appropriately time-shifted measurements. First... |
0801.1528 | Edward Glass | E.N. Glass | Acceleration and Classical Electromagnetic Radiation | To appear in Gen. Rel. Grav | Gen.Rel.Grav.40:1193-1202,2008 | 10.1007/s10714-007-0596-y | null | gr-qc | null | Classical radiation from an accelerated charge is reviewed along with the
reciprocal topic of accelerated observers detecting radiation from a static
charge. This review commemerates Bahram Mashhoon's 60th birthday.
| [
{
"created": "Wed, 9 Jan 2008 23:08:43 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Glass",
"E. N.",
""
]
] | Classical radiation from an accelerated charge is reviewed along with the reciprocal topic of accelerated observers detecting radiation from a static charge. This review commemerates Bahram Mashhoon's 60th birthday. |
0706.2193 | Guillermo F. Rubilar | G. F. Rubilar | Linear pre-metric electrodynamics and deduction of the light cone | 73 pages, 8 figures, LaTeX, corresponds to published version | AnnalenPhys.11:717-782,2002 | 10.1002/1521-3889(200211)11:10/11<717::AID-ANDP717>3.0.CO;2-6 | null | gr-qc | null | We formulate a general framework for describing the electromagnetic
properties of spacetime. These properties are encoded in the `constitutive
tensor of the vacuum', a quantity analogous to that used in the description of
material media. We give a generally covariant derivation of the Fresnel
equation describing the ... | [
{
"created": "Thu, 14 Jun 2007 20:42:25 GMT",
"version": "v1"
}
] | 2017-09-27 | [
[
"Rubilar",
"G. F.",
""
]
] | We formulate a general framework for describing the electromagnetic properties of spacetime. These properties are encoded in the `constitutive tensor of the vacuum', a quantity analogous to that used in the description of material media. We give a generally covariant derivation of the Fresnel equation describing the lo... |
2112.00919 | Georgios Fanaras | Georgios Fanaras, Alexander Vilenkin | Jackiw-Teitelboim and Kantowski-Sachs quantum cosmology | 43 pages, 6 figures | null | 10.1088/1475-7516/2022/03/056 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study quantum cosmology of the $2D$ Jackiw-Teitelboim (JT) gravity with
$\Lambda>0$ and calculate the Hartle-Hawking (HH) wave function for this model
in the minisuperspace framework. Our approach is guided by the observation that
the JT dynamics can be mapped exactly onto that of the Kantowski-Sachs (KS)
model de... | [
{
"created": "Thu, 2 Dec 2021 01:35:08 GMT",
"version": "v1"
},
{
"created": "Fri, 10 Dec 2021 16:07:16 GMT",
"version": "v2"
}
] | 2022-04-06 | [
[
"Fanaras",
"Georgios",
""
],
[
"Vilenkin",
"Alexander",
""
]
] | We study quantum cosmology of the $2D$ Jackiw-Teitelboim (JT) gravity with $\Lambda>0$ and calculate the Hartle-Hawking (HH) wave function for this model in the minisuperspace framework. Our approach is guided by the observation that the JT dynamics can be mapped exactly onto that of the Kantowski-Sachs (KS) model desc... |
0706.2623 | Muxin Han | Muxin Han | Quantum Dyanmics of Loop Quantum Gravity | 95 pages, MSc Thesis (Advisor: Dr. Jorge Pullin), Louisiana State
University | null | null | null | gr-qc hep-th math-ph math.MP | null | In the last 20 years, loop quantum gravity, a background independent approach
to unify general relativity and quantum mechanics, has been widely
investigated. The aim of loop quantum gravity is to construct a mathematically
rigorous, background independent, nonperturbative quantum theory for the
Lorentzian gravitatio... | [
{
"created": "Mon, 18 Jun 2007 15:31:33 GMT",
"version": "v1"
}
] | 2007-06-25 | [
[
"Han",
"Muxin",
""
]
] | In the last 20 years, loop quantum gravity, a background independent approach to unify general relativity and quantum mechanics, has been widely investigated. The aim of loop quantum gravity is to construct a mathematically rigorous, background independent, nonperturbative quantum theory for the Lorentzian gravitationa... |
2102.13138 | S Habib Mazharimousavi | S. Habib Mazharimousavi | Comment on "Reissner-Nordstr\"{o}m Black Holes in the Inverse
Electrodynamics Model, [arXiv:1407.4383]" | 3 pages, no figures. Intended as a comment on arXiv:1407.4383 | null | 10.1142/S0219887821501553 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Recently, the inverse electrodynamics model (IEM) was introduced and applied
to fined Reissner-Nordstr\"{o}m black holes in the context of the general
relativity coupled minimally with the nonlinear electrodynamics \cite{1}. The
solution consists of both electric and magnetic fields as of the dyonic
solutions. Here i... | [
{
"created": "Thu, 25 Feb 2021 19:35:04 GMT",
"version": "v1"
}
] | 2021-09-22 | [
[
"Mazharimousavi",
"S. Habib",
""
]
] | Recently, the inverse electrodynamics model (IEM) was introduced and applied to fined Reissner-Nordstr\"{o}m black holes in the context of the general relativity coupled minimally with the nonlinear electrodynamics \cite{1}. The solution consists of both electric and magnetic fields as of the dyonic solutions. Here in ... |
1311.0065 | John T. Whelan | John T. Whelan, Reinhard Prix, Curt J. Cutler, and Joshua L. Willis | New Coordinates for the Amplitude Parameter Space of Continuous
Gravitational Waves | REVTeX, 18 pages, 8 image files included in 7 figures | Class. Quantum Grav. 31 (2014) 065002 | 10.1088/0264-9381/31/6/065002 | LIGO-P1300105-v5; AEI-2013-250 | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The parameter space for continuous gravitational waves (GWs) can be divided
into amplitude parameters (signal amplitude, inclination and polarization
angles describing the orientation of the source, and an initial phase) and
phase-evolution parameters. The division is useful in part because the
Jaranowski-Krolak-Schu... | [
{
"created": "Fri, 1 Nov 2013 00:17:03 GMT",
"version": "v1"
},
{
"created": "Fri, 29 Nov 2013 17:02:12 GMT",
"version": "v2"
},
{
"created": "Tue, 25 Feb 2014 07:12:44 GMT",
"version": "v3"
}
] | 2014-02-26 | [
[
"Whelan",
"John T.",
""
],
[
"Prix",
"Reinhard",
""
],
[
"Cutler",
"Curt J.",
""
],
[
"Willis",
"Joshua L.",
""
]
] | The parameter space for continuous gravitational waves (GWs) can be divided into amplitude parameters (signal amplitude, inclination and polarization angles describing the orientation of the source, and an initial phase) and phase-evolution parameters. The division is useful in part because the Jaranowski-Krolak-Schutz... |
2105.06876 | Farshid Soltani | Farshid Soltani, Carlo Rovelli and Pierre Martin-Dussaud | The End of a Black Hole's Evaporation -- Part II | 10 pages, 12 figures. V2: added references, corrected typos | Phys. Rev. D 104, 066015 (2021) | 10.1103/PhysRevD.104.066015 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We derive an explicit expression for the transition amplitude from black to
white hole horizon at the end of Hawking evaporation using covariant loop
quantum gravity.
| [
{
"created": "Fri, 14 May 2021 15:02:32 GMT",
"version": "v1"
},
{
"created": "Sat, 31 Jul 2021 14:22:06 GMT",
"version": "v2"
}
] | 2021-09-22 | [
[
"Soltani",
"Farshid",
""
],
[
"Rovelli",
"Carlo",
""
],
[
"Martin-Dussaud",
"Pierre",
""
]
] | We derive an explicit expression for the transition amplitude from black to white hole horizon at the end of Hawking evaporation using covariant loop quantum gravity. |
1010.4776 | Tomi Koivisto | Luca Amendola, Kari Enqvist, Tomi Koivisto | Unifying Einstein and Palatini gravities | 17 pages, no figures | Phys.Rev.D83:044016,2011 | 10.1103/PhysRevD.83.044016 | HIP-2010-26/TH, ITP-UU-10-37, SPIN-10/32 | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider a novel class of $f(\R)$ gravity theories where the connection is
related to the conformally scaled metric $\hat g_{\mu\nu}=C(\R)g_{\mu\nu}$ with
a scaling that depends on the scalar curvature $\R$ only. We call them
C-theories and show that the Einstein and Palatini gravities can be obtained as
special l... | [
{
"created": "Fri, 22 Oct 2010 19:05:24 GMT",
"version": "v1"
}
] | 2011-02-18 | [
[
"Amendola",
"Luca",
""
],
[
"Enqvist",
"Kari",
""
],
[
"Koivisto",
"Tomi",
""
]
] | We consider a novel class of $f(\R)$ gravity theories where the connection is related to the conformally scaled metric $\hat g_{\mu\nu}=C(\R)g_{\mu\nu}$ with a scaling that depends on the scalar curvature $\R$ only. We call them C-theories and show that the Einstein and Palatini gravities can be obtained as special lim... |
1404.5784 | Luca Fabbri | Luca Fabbri, Stefano Vignolo, Sante Carloni | Renormalizability of the Dirac Equation in Torsion-Gravity with
Non-Minimal Coupling | 19 pages | Phys.Rev.D90,024012(2014) | 10.1103/PhysRevD.90.024012 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We will consider the torsional completion of gravity for a background filled
with Dirac matter fields, studying what happens when fermionic non-minimal
coupling is taken into account: we will show that, although non-minimal
couplings are usually disregarded because of their ill-defined behaviour in
ultraviolet regime... | [
{
"created": "Wed, 23 Apr 2014 11:07:52 GMT",
"version": "v1"
},
{
"created": "Tue, 6 May 2014 11:39:32 GMT",
"version": "v2"
},
{
"created": "Thu, 10 Jul 2014 11:16:51 GMT",
"version": "v3"
},
{
"created": "Fri, 3 Oct 2014 13:51:42 GMT",
"version": "v4"
}
] | 2014-10-06 | [
[
"Fabbri",
"Luca",
""
],
[
"Vignolo",
"Stefano",
""
],
[
"Carloni",
"Sante",
""
]
] | We will consider the torsional completion of gravity for a background filled with Dirac matter fields, studying what happens when fermionic non-minimal coupling is taken into account: we will show that, although non-minimal couplings are usually disregarded because of their ill-defined behaviour in ultraviolet regimes,... |
gr-qc/0011098 | Marco Cavagli\`a | Marco Cavaglia, Paulo Vargas Moniz | FRW Cosmological Solutions in M-theory | LaTeX, 10 pages. Submitted to the on-line proceedings of the Ninth
Marcel Grossmann Meeting (Rome, 2-8 July 2000) | null | null | MIT-CTP-3050 | gr-qc | null | We present the canonical and quantum cosmological investigation of a
four-dimensional, spatially flat, Friedmann-Robertson-Walker (FRW) model that
is derived from the bosonic Neveu-Schwarz/Neveu-Schwarz sector of the
low-energy M-theory effective action. We discuss in detail the phase space of
the classical theory. W... | [
{
"created": "Mon, 27 Nov 2000 21:52:58 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Cavaglia",
"Marco",
""
],
[
"Moniz",
"Paulo Vargas",
""
]
] | We present the canonical and quantum cosmological investigation of a four-dimensional, spatially flat, Friedmann-Robertson-Walker (FRW) model that is derived from the bosonic Neveu-Schwarz/Neveu-Schwarz sector of the low-energy M-theory effective action. We discuss in detail the phase space of the classical theory. We ... |
2309.10130 | Sunil Maurya DR. | S. K. Maurya, K. N. Singh, M. Govender, G. Mustafa, S. Ray | The effect of gravitational decoupling on constraining the mass and
radius for the secondary component of GW190814 and other self-bound strange
stars in f(Q)-gravity theory | Accepted in The Astrophysical Journal Supplement Series | null | null | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | Inspired by the conundrum of the gravitational event, GW190814 which brings
to light the coalescence of a 23 $ M_{\odot}$ black hole with a yet to be
determined secondary component, we look to modelling compact objects within the
framework of $f(\mathcal{Q})$ gravity by employing the method of gravitational
decouplin... | [
{
"created": "Mon, 18 Sep 2023 20:11:08 GMT",
"version": "v1"
}
] | 2023-09-20 | [
[
"Maurya",
"S. K.",
""
],
[
"Singh",
"K. N.",
""
],
[
"Govender",
"M.",
""
],
[
"Mustafa",
"G.",
""
],
[
"Ray",
"S.",
""
]
] | Inspired by the conundrum of the gravitational event, GW190814 which brings to light the coalescence of a 23 $ M_{\odot}$ black hole with a yet to be determined secondary component, we look to modelling compact objects within the framework of $f(\mathcal{Q})$ gravity by employing the method of gravitational decoupling.... |
1606.03981 | Thomas Sotiriou | Andrew Coates, Michael W. Horbartsch, Thomas P. Sotiriou | Gravitational Higgs Mechanism in Neutron Star Interiors | 5 pages | Phys. Rev. D 95, 084003 (2017) | 10.1103/PhysRevD.95.084003 | null | gr-qc astro-ph.HE hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We suggest that nonminimally coupled scalar fields can lead to modifications
of the microphysics in the interiors of relativistic stars. As a concrete
example, we consider the generation of a non-zero photon mass in such
high-density environments. This is achieved by means of a light gravitational
scalar, and the sca... | [
{
"created": "Mon, 13 Jun 2016 14:49:47 GMT",
"version": "v1"
}
] | 2017-04-12 | [
[
"Coates",
"Andrew",
""
],
[
"Horbartsch",
"Michael W.",
""
],
[
"Sotiriou",
"Thomas P.",
""
]
] | We suggest that nonminimally coupled scalar fields can lead to modifications of the microphysics in the interiors of relativistic stars. As a concrete example, we consider the generation of a non-zero photon mass in such high-density environments. This is achieved by means of a light gravitational scalar, and the scala... |
1506.06590 | Walter Del Pozzo | Walter Del Pozzo, Tjonnie G. F. Li, Chris Messenger | Cosmological inference using only gravitational wave observations of
binary neutron stars | 14 pages, 6 figures, accepted for publication in Physical Review D | Phys. Rev. D 95, 043502 (2017) | 10.1103/PhysRevD.95.043502 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | [Abridged] This study presents the first Bayesian investigation of the
accuracy with which the cosmological parameters can be measured using
information coming \emph{only} from the gravitational wave observations of
binary neutron star systems by Einstein Telescope. We find, by direct
simulation of $10^3$ detections ... | [
{
"created": "Mon, 22 Jun 2015 13:31:03 GMT",
"version": "v1"
},
{
"created": "Wed, 11 Jan 2017 12:36:53 GMT",
"version": "v2"
}
] | 2017-02-08 | [
[
"Del Pozzo",
"Walter",
""
],
[
"Li",
"Tjonnie G. F.",
""
],
[
"Messenger",
"Chris",
""
]
] | [Abridged] This study presents the first Bayesian investigation of the accuracy with which the cosmological parameters can be measured using information coming \emph{only} from the gravitational wave observations of binary neutron star systems by Einstein Telescope. We find, by direct simulation of $10^3$ detections of... |
gr-qc/9902069 | Andres Gomberoff | Andres Gomberoff and Donald Marolf | On Group Averaging for SO(n,1) | Minor corrections, 17 pages,RevTex | Int.J.Mod.Phys. D8 (1999) 519-535 | 10.1142/S0218271899000365 | null | gr-qc hep-th math.QA | null | The technique known as group averaging provides powerful machinery for the
study of constrained systems. However, it is likely to be well defined only in
a limited set of cases. Here, we investigate the possibility of using a
`renormalized' group averaging in certain models. The results of our study may
indicate a ge... | [
{
"created": "Mon, 22 Feb 1999 22:43:50 GMT",
"version": "v1"
},
{
"created": "Wed, 7 Apr 1999 00:37:39 GMT",
"version": "v2"
}
] | 2015-06-25 | [
[
"Gomberoff",
"Andres",
""
],
[
"Marolf",
"Donald",
""
]
] | The technique known as group averaging provides powerful machinery for the study of constrained systems. However, it is likely to be well defined only in a limited set of cases. Here, we investigate the possibility of using a `renormalized' group averaging in certain models. The results of our study may indicate a gene... |
1705.04049 | Hamid Reza Sepangi | Maysam Motaharfar, Erfan Massaeli, Hamid Reza Sepangi | Power spectra in warm G-inflation and its consistency: stochastic
approach | 13 pages, 4 figures, to appear in PRD | Phys. Rev. D 96, 103541 (2017) | 10.1103/PhysRevD.96.103541 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Recently, it has been realized that the so-called G-inflation model inspired
by supplementing a generalized covariant Galileon-like non-linear derivative
self-interacting term to the standard kinetic term should be ruled out from
inflationary models. This is due to the fact that it suffers from lack of an
oscillatory... | [
{
"created": "Thu, 11 May 2017 07:42:02 GMT",
"version": "v1"
},
{
"created": "Wed, 15 Nov 2017 04:28:24 GMT",
"version": "v2"
},
{
"created": "Sun, 3 Dec 2017 08:49:19 GMT",
"version": "v3"
}
] | 2017-12-06 | [
[
"Motaharfar",
"Maysam",
""
],
[
"Massaeli",
"Erfan",
""
],
[
"Sepangi",
"Hamid Reza",
""
]
] | Recently, it has been realized that the so-called G-inflation model inspired by supplementing a generalized covariant Galileon-like non-linear derivative self-interacting term to the standard kinetic term should be ruled out from inflationary models. This is due to the fact that it suffers from lack of an oscillatory p... |
0803.4072 | Hideki Ishihara | Kouji Ogawa, Hideki Ishihara, Hiroshi Kozaki, Hiroyuki Nakano, and
Shinya Saito | Stationary Rotating Strings as Relativistic Particle Mechanics | 20pages, 7 figures | Phys.Rev.D78:023525,2008 | 10.1103/PhysRevD.78.023525 | OCU-PHYS 295, AP-GR 57 | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Stationary rotating strings can be viewed as geodesic motions in appropriate
metrics on a two-dimensional space. We obtain all solutions describing
stationary rotating strings in flat spacetime as an application. These rotating
strings have infinite length with various wiggly shapes. Averaged value of the
string ener... | [
{
"created": "Fri, 28 Mar 2008 09:32:33 GMT",
"version": "v1"
},
{
"created": "Mon, 23 Jun 2008 06:15:49 GMT",
"version": "v2"
}
] | 2008-12-18 | [
[
"Ogawa",
"Kouji",
""
],
[
"Ishihara",
"Hideki",
""
],
[
"Kozaki",
"Hiroshi",
""
],
[
"Nakano",
"Hiroyuki",
""
],
[
"Saito",
"Shinya",
""
]
] | Stationary rotating strings can be viewed as geodesic motions in appropriate metrics on a two-dimensional space. We obtain all solutions describing stationary rotating strings in flat spacetime as an application. These rotating strings have infinite length with various wiggly shapes. Averaged value of the string energy... |
1107.5994 | Kamal Nandi | Amrita Bhattacharya, Ramil Izmailov, Ettore Laserra and Kamal K. Nandi | A Nonsingular Brans Wormhole: An Analogue to Naked Black Holes | 20 pages, 4 figures | Class.Quant.Grav.28:155009,2011 | 10.1088/0264-9381/28/15/155009 | null | gr-qc hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In a recent paper, we showed the Jordan frame vacuum Brans Class I solution
provided a wormhole analogue to Horowitz-Ross naked black hole in the wormhole
range -3/2<{\omega}<-4/3. Thereafter, the solution has been criticized by some
authors that, because of the presence of singularity in that solution within
this ra... | [
{
"created": "Thu, 28 Jul 2011 18:29:40 GMT",
"version": "v1"
}
] | 2011-09-16 | [
[
"Bhattacharya",
"Amrita",
""
],
[
"Izmailov",
"Ramil",
""
],
[
"Laserra",
"Ettore",
""
],
[
"Nandi",
"Kamal K.",
""
]
] | In a recent paper, we showed the Jordan frame vacuum Brans Class I solution provided a wormhole analogue to Horowitz-Ross naked black hole in the wormhole range -3/2<{\omega}<-4/3. Thereafter, the solution has been criticized by some authors that, because of the presence of singularity in that solution within this rang... |
0905.1908 | Pablo Laguna | Pablo Laguna, Shane L. Larson, David Spergel, Nicolas Yunes | Integrated Sachs-Wolfe Effect for Gravitational Radiation | 4 pages, 1 figure, replaced with version accepted for publication in
ApJ Letters | null | 10.1088/2041-8205/715/1/L12 | null | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Gravitational waves are messengers carrying valuable information about their
sources. For sources at cosmological distances, the waves will contain also the
imprint left by the intervening matter. The situation is in close analogy with
cosmic microwave photons, for which the large-scale structures the photons
travers... | [
{
"created": "Tue, 12 May 2009 16:55:29 GMT",
"version": "v1"
},
{
"created": "Thu, 15 Apr 2010 19:55:47 GMT",
"version": "v2"
}
] | 2015-05-13 | [
[
"Laguna",
"Pablo",
""
],
[
"Larson",
"Shane L.",
""
],
[
"Spergel",
"David",
""
],
[
"Yunes",
"Nicolas",
""
]
] | Gravitational waves are messengers carrying valuable information about their sources. For sources at cosmological distances, the waves will contain also the imprint left by the intervening matter. The situation is in close analogy with cosmic microwave photons, for which the large-scale structures the photons traverse ... |
2208.05796 | Subhash Chandra Mahapatra | Subhash Mahapatra, Indrani Banerjee | Rotating hairy black holes and thermodynamics from gravitational
decoupling | 30 Pages, 17 Figures, references added, discussion extended,
Published version | Phys. Dark Univ. 39 (2023) 101172 | 10.1016/j.dark.2023.101172 | null | gr-qc hep-th | http://creativecommons.org/licenses/by/4.0/ | We study the method of extended gravitational decoupling in obtaining static
black hole solutions satisfying Einstein's equations with a tensor vacuum. The
source has quite generic characteristics and satisfies the strong energy
condition. The stationary, axisymmetric counterpart of the static metric is
obtained by a... | [
{
"created": "Thu, 11 Aug 2022 12:46:12 GMT",
"version": "v1"
},
{
"created": "Tue, 24 Jan 2023 06:45:55 GMT",
"version": "v2"
}
] | 2023-01-25 | [
[
"Mahapatra",
"Subhash",
""
],
[
"Banerjee",
"Indrani",
""
]
] | We study the method of extended gravitational decoupling in obtaining static black hole solutions satisfying Einstein's equations with a tensor vacuum. The source has quite generic characteristics and satisfies the strong energy condition. The stationary, axisymmetric counterpart of the static metric is obtained by app... |
2402.00055 | Ebrahim Yusofi Ramneti | K. Suratgar, M. Mohsenzadeh, E. Yusofi, and F. Taghizadeh-Farahmand | Accelerating Universe in Terms of Hankel Function Index | 11 pages, 2 tables | Modern Physics Letters A, 2024 | 10.1142/S021773232350178X | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | In this paper, $F(\nu)$ cosmology is proposed for the accelerating universe
with asymptotic de Sitter expansion in terms of Hankel function index $\nu$. To
some extent, both the initial expansion during early inflation and the current
accelerated expansion can be studied with a vacuum cosmic fluid i.e. $\Lambda$
in t... | [
{
"created": "Sun, 28 Jan 2024 05:55:37 GMT",
"version": "v1"
}
] | 2024-02-02 | [
[
"Suratgar",
"K.",
""
],
[
"Mohsenzadeh",
"M.",
""
],
[
"Yusofi",
"E.",
""
],
[
"Taghizadeh-Farahmand",
"F.",
""
]
] | In this paper, $F(\nu)$ cosmology is proposed for the accelerating universe with asymptotic de Sitter expansion in terms of Hankel function index $\nu$. To some extent, both the initial expansion during early inflation and the current accelerated expansion can be studied with a vacuum cosmic fluid i.e. $\Lambda$ in the... |
2008.12703 | Theo Torres | T. Torres, S. R. Dolan | Electromagnetic self-force on a charged particle on Kerr spacetime:
equatorial circular orbits | 41 pages, 10 figures, 1 table | Phys. Rev. D 106, 024024 (2022) | 10.1103/PhysRevD.106.024024 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We calculate the self-force acting on a charged particle on a circular
geodesic orbit in the equatorial plane of a rotating black hole. We show by
direct calculation that the dissipative self-force balances with the sum of the
flux radiated to infinity and through the black hole horizon. Prograde orbits
are found to ... | [
{
"created": "Fri, 28 Aug 2020 15:27:06 GMT",
"version": "v1"
}
] | 2022-07-19 | [
[
"Torres",
"T.",
""
],
[
"Dolan",
"S. R.",
""
]
] | We calculate the self-force acting on a charged particle on a circular geodesic orbit in the equatorial plane of a rotating black hole. We show by direct calculation that the dissipative self-force balances with the sum of the flux radiated to infinity and through the black hole horizon. Prograde orbits are found to st... |
1310.1097 | Georgios Lukes Gerakopoulos | Georgios Lukes-Gerakopoulos, Andrzej J. Maciejewski, Maria Przybylska
and Tomasz Stachowiak | Comment on "Nonexistence of the final first integral in the
Zipoy-Voorhees space-time" | 2 pages, 1 figure | null | 10.1103/PhysRevD.88.108501 | null | gr-qc astro-ph.SR | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The accuracy of the numerical findings of Lukes-Gerakopoulos PRD 86, 044013
(2012), regarding the existence of additional first integrals in the
Zipoy-Voorhees space-time, was recently questioned by Maciejewski et al. PRD
88, 064003 (2013). In this comment, it is shown that the discrepancy between
the results of Luke... | [
{
"created": "Thu, 3 Oct 2013 20:01:57 GMT",
"version": "v1"
}
] | 2013-11-26 | [
[
"Lukes-Gerakopoulos",
"Georgios",
""
],
[
"Maciejewski",
"Andrzej J.",
""
],
[
"Przybylska",
"Maria",
""
],
[
"Stachowiak",
"Tomasz",
""
]
] | The accuracy of the numerical findings of Lukes-Gerakopoulos PRD 86, 044013 (2012), regarding the existence of additional first integrals in the Zipoy-Voorhees space-time, was recently questioned by Maciejewski et al. PRD 88, 064003 (2013). In this comment, it is shown that the discrepancy between the results of Lukes-... |
1609.07933 | Elias C. Vagenas | Pedro Bargue\~no, Elias C. Vagenas | Black holes with constant topological Euler density | 7 pages, REVTeX 4, 1 figure, to appear in EPL | null | 10.1209/0295-5075/115/60002 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A class of four dimensional spherically symmetric and static geometries with
constant topological Euler density is studied. These geometries are shown to
solve the coupled Einstein-Maxwell system when non-linear Born-Infeld-like
electrodynamics is employed.
| [
{
"created": "Mon, 26 Sep 2016 11:48:09 GMT",
"version": "v1"
}
] | 2016-11-23 | [
[
"Bargueño",
"Pedro",
""
],
[
"Vagenas",
"Elias C.",
""
]
] | A class of four dimensional spherically symmetric and static geometries with constant topological Euler density is studied. These geometries are shown to solve the coupled Einstein-Maxwell system when non-linear Born-Infeld-like electrodynamics is employed. |
1507.02623 | Mariam Bouhmadi-Lopez | Joao Morais, Mariam Bouhmadi-Lopez, Salvatore Capozziello | Can f(R) gravity contribute to (dark) radiation? | 29 pages, 10 figures, RevTex4. Discussion improved. Version accepted
in JCAP | null | 10.1088/1475-7516/2015/09/041 | null | gr-qc astro-ph.CO hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We discuss the possibility that suitable modifications of gravity could
account for some amount of the radiation we observe today, in addition to the
possibility of explaining the present speed up of the universe. We start
introducing and reviewing cosmological reconstruction methods for metric $f(R)$
theories of gra... | [
{
"created": "Tue, 7 Jul 2015 20:04:10 GMT",
"version": "v1"
},
{
"created": "Mon, 13 Jul 2015 19:18:35 GMT",
"version": "v2"
},
{
"created": "Thu, 27 Aug 2015 15:16:49 GMT",
"version": "v3"
}
] | 2015-12-02 | [
[
"Morais",
"Joao",
""
],
[
"Bouhmadi-Lopez",
"Mariam",
""
],
[
"Capozziello",
"Salvatore",
""
]
] | We discuss the possibility that suitable modifications of gravity could account for some amount of the radiation we observe today, in addition to the possibility of explaining the present speed up of the universe. We start introducing and reviewing cosmological reconstruction methods for metric $f(R)$ theories of gravi... |
2111.05282 | H\'ector Ra\'ul Olivares S\'anchez | H. Olivares, I. M. Peshkov, E. R. Most, F. M. Guercilena, L. J.
Papenfort | A new first-order formulation of the Einstein equations exploiting
analogies with electrodynamics | 20 pages, 1 figure | null | 10.1103/PhysRevD.105.124038 | null | gr-qc astro-ph.HE math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The Einstein and Maxwell equations are both systems of hyperbolic equations
which need to satisfy a set of elliptic constraints throughout evolution.
However, while electrodynamics (EM) and magnetohydrodynamics (MHD) have
benefited from a large number of evolution schemes that are able to enforce
these constraints an... | [
{
"created": "Tue, 9 Nov 2021 17:23:53 GMT",
"version": "v1"
}
] | 2022-06-29 | [
[
"Olivares",
"H.",
""
],
[
"Peshkov",
"I. M.",
""
],
[
"Most",
"E. R.",
""
],
[
"Guercilena",
"F. M.",
""
],
[
"Papenfort",
"L. J.",
""
]
] | The Einstein and Maxwell equations are both systems of hyperbolic equations which need to satisfy a set of elliptic constraints throughout evolution. However, while electrodynamics (EM) and magnetohydrodynamics (MHD) have benefited from a large number of evolution schemes that are able to enforce these constraints and ... |
gr-qc/0305060 | Choquet-Bruhat | Yvonne Choquet-Bruhat | Future complete Einsteinian space times with U(1) symmetry, the
unpolarized case | 67 pages, text for the volume of the Cargese meeting "50 years of the
Cauchy problem in General Relativity" | null | null | null | gr-qc | null | I prove the existence of vacuum $S^{1}$ symmetric Einsteinian, unpolarized,
space times which are complete in the direction of the expansion, for small
initial data, without supposing that the $S^{1}$ orbits are orthogonal to the
3-manifolds, as was done in previous work in collaboration with V. Moncrief.
| [
{
"created": "Thu, 15 May 2003 19:49:43 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Choquet-Bruhat",
"Yvonne",
""
]
] | I prove the existence of vacuum $S^{1}$ symmetric Einsteinian, unpolarized, space times which are complete in the direction of the expansion, for small initial data, without supposing that the $S^{1}$ orbits are orthogonal to the 3-manifolds, as was done in previous work in collaboration with V. Moncrief. |
gr-qc/9908072 | Keith Anguige | K. Anguige | A class of plane symmetric perfect-fluid cosmologies with a Kasner-like
singularity | LaTeX, 15 pages, no figures, to appear in CQG, correction to
existence proof | Class.Quant.Grav.17:2117-2128,2000 | 10.1088/0264-9381/17/10/306 | null | gr-qc | null | We prove the existence of a class of plane symmetric perfect-fluid
cosmologies with a (-1/3, 2/3, 2/3) Kasner-like singularity. These solutions of
the Einstein equations depend on two smooth functions of one space coordinate.
They are constructed by solving a symmetric hyperbolic system of Fuchsian
equations.
| [
{
"created": "Mon, 30 Aug 1999 10:19:39 GMT",
"version": "v1"
},
{
"created": "Wed, 8 Sep 1999 13:44:26 GMT",
"version": "v2"
},
{
"created": "Wed, 20 Oct 1999 13:14:00 GMT",
"version": "v3"
},
{
"created": "Tue, 26 Oct 1999 12:02:12 GMT",
"version": "v4"
},
{
"cr... | 2011-07-19 | [
[
"Anguige",
"K.",
""
]
] | We prove the existence of a class of plane symmetric perfect-fluid cosmologies with a (-1/3, 2/3, 2/3) Kasner-like singularity. These solutions of the Einstein equations depend on two smooth functions of one space coordinate. They are constructed by solving a symmetric hyperbolic system of Fuchsian equations. |
1511.00604 | Jacobo Asorey | J. Asorey, M. Asorey and D. Garcia-Alvarez | Symplectic gauge fields and dark matter | 16 pages | Phys. Rev. D 92, 103517 (2015) | 10.1103/PhysRevD.92.103517 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The dynamics of symplectic gauge fields provides a consistent framework for
fundamental interactions based on spin three gauge fields. One remarkable
property is that symplectic gauge fields only have minimal couplings with
gravitational fields and not with any other field of the Standard Model.
Interactions with ord... | [
{
"created": "Mon, 2 Nov 2015 17:34:05 GMT",
"version": "v1"
},
{
"created": "Mon, 23 Nov 2015 16:47:57 GMT",
"version": "v2"
}
] | 2015-11-24 | [
[
"Asorey",
"J.",
""
],
[
"Asorey",
"M.",
""
],
[
"Garcia-Alvarez",
"D.",
""
]
] | The dynamics of symplectic gauge fields provides a consistent framework for fundamental interactions based on spin three gauge fields. One remarkable property is that symplectic gauge fields only have minimal couplings with gravitational fields and not with any other field of the Standard Model. Interactions with ordin... |
0711.2274 | Jose Geraldo Pereira | R. Aldrovandi, J. G. Pereira | de Sitter Relativity: a New Road to Quantum Gravity? | 18 pages, no figures. v3: Important presentation changes intended to
clarify some points of the previous version; title slightly changed and
references added. Version to be published in Foundations of Physics | Found.Phys.39:1-19,2009 | 10.1007/s10701-008-9258-5 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The Poincare' group generalizes the Galilei group for high-velocity
kinematics. The de Sitter group is assumed to go one step further, generalizing
Poincare' as the group governing high-energy kinematics. In other words,
ordinary special relativity is here replaced by de Sitter relativity. In this
theory, the cosmolo... | [
{
"created": "Wed, 14 Nov 2007 19:35:41 GMT",
"version": "v1"
},
{
"created": "Wed, 23 Jan 2008 14:17:55 GMT",
"version": "v2"
},
{
"created": "Wed, 12 Nov 2008 11:08:54 GMT",
"version": "v3"
}
] | 2009-01-16 | [
[
"Aldrovandi",
"R.",
""
],
[
"Pereira",
"J. G.",
""
]
] | The Poincare' group generalizes the Galilei group for high-velocity kinematics. The de Sitter group is assumed to go one step further, generalizing Poincare' as the group governing high-energy kinematics. In other words, ordinary special relativity is here replaced by de Sitter relativity. In this theory, the cosmologi... |
gr-qc/0304095 | M. Meyer | S. Deser | A Note on Matter Superenergy Tensors | 3 pages | Class.Quant.Grav.20:L213-L215,2003 | 10.1088/0264-9381/20/15/102 | BRX TH-517 | gr-qc hep-th | null | We consider Bel-Robinson-like higher derivative conserved two-index tensors
$H_\mn$ in simple matter models, following a recently suggested Maxwell field
version. In flat space, we show that they are essentially equivalent to the
true stress-tensors. In curved Ricci-flat backgrounds it is possible to
redefine $H_\mn$... | [
{
"created": "Thu, 24 Apr 2003 18:54:00 GMT",
"version": "v1"
}
] | 2009-11-10 | [
[
"Deser",
"S.",
""
]
] | We consider Bel-Robinson-like higher derivative conserved two-index tensors $H_\mn$ in simple matter models, following a recently suggested Maxwell field version. In flat space, we show that they are essentially equivalent to the true stress-tensors. In curved Ricci-flat backgrounds it is possible to redefine $H_\mn$ s... |
2106.00193 | Koustav Chandra | Koustav Chandra, V. Villa-Ortega, T. Dent, C. McIsaac, Archana Pai, I.
W. Harry, G. S. Cabourn Davies, K. Soni | An optimized PyCBC search for gravitational waves from intermediate-mass
black hole mergers | v2; 15 pages, 10 figures; Published in Physical Review D | Phys. Rev. D 104, 042004 (2021) | 10.1103/PhysRevD.104.042004 | null | gr-qc astro-ph.HE | http://creativecommons.org/licenses/by/4.0/ | The detection of intermediate-mass black holes (IMBHs) i.e. those with mass
$\sim 100$-$10^5 M_\odot$, is an emerging goal of gravitational-wave (GW)
astronomy with wide implications for cosmology and tests of strong-field
gravity. Current PyCBC-based searches for compact binary mergers, which matched
filter the dete... | [
{
"created": "Tue, 1 Jun 2021 02:43:23 GMT",
"version": "v1"
},
{
"created": "Sat, 28 Aug 2021 03:40:31 GMT",
"version": "v2"
}
] | 2021-08-31 | [
[
"Chandra",
"Koustav",
""
],
[
"Villa-Ortega",
"V.",
""
],
[
"Dent",
"T.",
""
],
[
"McIsaac",
"C.",
""
],
[
"Pai",
"Archana",
""
],
[
"Harry",
"I. W.",
""
],
[
"Davies",
"G. S. Cabourn",
""
],
[
"Son... | The detection of intermediate-mass black holes (IMBHs) i.e. those with mass $\sim 100$-$10^5 M_\odot$, is an emerging goal of gravitational-wave (GW) astronomy with wide implications for cosmology and tests of strong-field gravity. Current PyCBC-based searches for compact binary mergers, which matched filter the detect... |
gr-qc/9906065 | Ezra T. Newman | Juergen Ehlers and Ezra T. Newman | The Theory of Caustics and Wavefront Singularities with Physical
Applications | Figs. not included | J.Math.Phys. 41 (2000) 3344-3378 | 10.1063/1.533316 | null | gr-qc | null | This is intended as an introduction to and review of the work of V, Arnold
and his collaborators on the theory of Lagrangian and Legendrian submanifolds
and their associated maps. The theory is illustrated by applications to
Hamilton-Jacobi theory and the eikonal equation, with an emphasis on null
surfaces and wavefr... | [
{
"created": "Wed, 16 Jun 1999 20:07:06 GMT",
"version": "v1"
}
] | 2015-06-25 | [
[
"Ehlers",
"Juergen",
""
],
[
"Newman",
"Ezra T.",
""
]
] | This is intended as an introduction to and review of the work of V, Arnold and his collaborators on the theory of Lagrangian and Legendrian submanifolds and their associated maps. The theory is illustrated by applications to Hamilton-Jacobi theory and the eikonal equation, with an emphasis on null surfaces and wavefron... |
2103.03867 | Albert Escriv\`a | Albert Escriv\`a and Antonio Enea Romano | Effects of the shape of curvature peaks on the size of primordial black
holes | 9 pages and 10 figures. v2: small changes and references added | JCAP 05 (2021) 066 | 10.1088/1475-7516/2021/05/066 | ICCUB-21-003 | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We simulate numerically the formation of spherically symmetric primordial
black holes (PBHs) seeded by different families of primordial curvature
perturbations profiles on a Friedman-Robertson-Walker (FRW) Universe filled by
radiation fluid. We have studied the dependency on the curvature profile of the
initial mass ... | [
{
"created": "Fri, 5 Mar 2021 18:46:07 GMT",
"version": "v1"
},
{
"created": "Thu, 15 Apr 2021 17:48:10 GMT",
"version": "v2"
}
] | 2021-06-01 | [
[
"Escrivà",
"Albert",
""
],
[
"Romano",
"Antonio Enea",
""
]
] | We simulate numerically the formation of spherically symmetric primordial black holes (PBHs) seeded by different families of primordial curvature perturbations profiles on a Friedman-Robertson-Walker (FRW) Universe filled by radiation fluid. We have studied the dependency on the curvature profile of the initial mass $M... |
1504.05119 | Davi Rodrigues | Davi C. Rodrigues, Bertrand Chauvineau, Oliver F. Piattella | Scalar-Tensor gravity with system-dependent potential and its relation
with Renormalization Group extended General Relativity | 29 pages, 2 figs. v2: small changes in text and ref's. v3: further
details on the relation between this work and others on the Renormalization
Group. Version to appear in JCAP | JCAP09(2015)009 | 10.1088/1475-7516/2015/09/009 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We show that Renormalization Group extensions of the Einstein-Hilbert action
for large scale physics are not, in general, a particular case of standard
Scalar-Tensor (ST) gravity. We present a new class of ST actions, in which the
potential is not necessarily fixed at the action level, and show that this
extended ST ... | [
{
"created": "Mon, 20 Apr 2015 16:54:35 GMT",
"version": "v1"
},
{
"created": "Thu, 30 Apr 2015 19:03:29 GMT",
"version": "v2"
},
{
"created": "Mon, 20 Jul 2015 22:04:28 GMT",
"version": "v3"
}
] | 2015-09-03 | [
[
"Rodrigues",
"Davi C.",
""
],
[
"Chauvineau",
"Bertrand",
""
],
[
"Piattella",
"Oliver F.",
""
]
] | We show that Renormalization Group extensions of the Einstein-Hilbert action for large scale physics are not, in general, a particular case of standard Scalar-Tensor (ST) gravity. We present a new class of ST actions, in which the potential is not necessarily fixed at the action level, and show that this extended ST th... |
gr-qc/0409075 | Kip S. Thorne | Erika D'Ambrosio (1), Richard O'Shaughnessy (1), Sergey Strigin (2),
Kip S. Thorne (1) and Sergey Vyatchanin (2) ((1) California Institute of
Technology, (2) Moscow State University) | Reducing Thermoelastic Noise in Gravitational-Wave Interferometers by
Flattening the Light Beams | Submitted to Physical Review D on 13 September, 2004; Revtex; 26
pages, 10 figures. This paper is a close companion to gr-qc/0409050 "The
implications of Mexican-hat mirrors: calculations of thermoelastic noise and
interferometer sensitivity to perturbations for the Mexican-hat mirror
proposal for advanced LIGO... | null | null | null | gr-qc | null | In the baseline design for advanced LIGO interferometers, the most serious
noise source is tiny, dynamically fluctuating bumps and valleys on the faces of
the arm-cavity mirrors, caused by random flow of heat in the mirrors' sapphire
substrates: so-called "thermoelastic noise". We propose replacing the
interferometer... | [
{
"created": "Mon, 20 Sep 2004 15:36:10 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"D'Ambrosio",
"Erika",
""
],
[
"O'Shaughnessy",
"Richard",
""
],
[
"Strigin",
"Sergey",
""
],
[
"Thorne",
"Kip S.",
""
],
[
"Vyatchanin",
"Sergey",
""
]
] | In the baseline design for advanced LIGO interferometers, the most serious noise source is tiny, dynamically fluctuating bumps and valleys on the faces of the arm-cavity mirrors, caused by random flow of heat in the mirrors' sapphire substrates: so-called "thermoelastic noise". We propose replacing the interferometers'... |
1703.00029 | Leo Brewin | Leo Brewin | Evolutions of Gowdy, Brill and Teukolsky initial data on a smooth
lattice | 67 pages, 18 figures | Phys. Rev. D 96, 024037 (2017) | 10.1103/PhysRevD.96.024037 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Numerical results, based on a lattice method for computational general
relativity, will be presented for Cauchy evolution of initial data for the
Brill, Teukolsky and polarised Gowdy space-times. The simple objective of this
paper is to demonstrate that the lattice method can, at least for these
space-times, match re... | [
{
"created": "Tue, 28 Feb 2017 19:11:04 GMT",
"version": "v1"
}
] | 2017-08-02 | [
[
"Brewin",
"Leo",
""
]
] | Numerical results, based on a lattice method for computational general relativity, will be presented for Cauchy evolution of initial data for the Brill, Teukolsky and polarised Gowdy space-times. The simple objective of this paper is to demonstrate that the lattice method can, at least for these space-times, match resu... |
1909.04057 | Shahar Hod | Shahar Hod | The quantum emission spectra of rapidly-rotating Kerr black holes:
discrete or continuous? | 6 pages | Physics Letters B 749, 115 (2015) | 10.1016/j.physletb.2015.07.068 | null | gr-qc astro-ph.HE hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Bekenstein and Mukhanov (BM) have suggested that, in a quantum theory of
gravity, black holes may have discrete emission spectra. Using the time-energy
uncertainty principle they have also shown that, for a (non-rotating)
Schwarzschild black hole, the natural broadening $\delta\omega$ of the
black-hole emission lines... | [
{
"created": "Mon, 9 Sep 2019 18:00:09 GMT",
"version": "v1"
}
] | 2019-09-18 | [
[
"Hod",
"Shahar",
""
]
] | Bekenstein and Mukhanov (BM) have suggested that, in a quantum theory of gravity, black holes may have discrete emission spectra. Using the time-energy uncertainty principle they have also shown that, for a (non-rotating) Schwarzschild black hole, the natural broadening $\delta\omega$ of the black-hole emission lines i... |
1107.0708 | Leonardo Modesto | Bernard Carr, Leonardo Modesto, Isabeau Pr\'emont-Schwarz | Generalized Uncertainty Principle and Self-dual Black Holes | 13 Pages, 6 figures | null | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The Generalized Uncertainty Principle suggests corrections to the Uncertainty
Principle as the energy increases towards the Planck value. It provides a
natural transition between the expressions for the Compton wavelength below the
Planck mass and the black hole event horizon size above this mass. It also
suggests co... | [
{
"created": "Mon, 4 Jul 2011 19:29:11 GMT",
"version": "v1"
}
] | 2011-07-05 | [
[
"Carr",
"Bernard",
""
],
[
"Modesto",
"Leonardo",
""
],
[
"Prémont-Schwarz",
"Isabeau",
""
]
] | The Generalized Uncertainty Principle suggests corrections to the Uncertainty Principle as the energy increases towards the Planck value. It provides a natural transition between the expressions for the Compton wavelength below the Planck mass and the black hole event horizon size above this mass. It also suggests corr... |
0709.1917 | Michael Martin Nieto | Michael Martin Nieto and John D. Anderson | Seeking a solution of the Pioneer Anomaly | 7 pages, 1 figure, invited talk at the Fourth Meeting on CPT and
Lorentz Symmetry, 8-11 Aug. 2007, held at Indiana University | null | 10.1142/9789812779519_0025 | LA-UR 07-6117 | gr-qc | null | The 1972 and 1973 launched Pioneer 10 and 11 were the first missions to
explore the outer solar system. They achieved stunning breakthroughs in
deep-space exploration. But around 1980 an unmodeled force of \sim 8 \times
10^{-8} cm/s^2, directed approximately towards the Sun, appeared in the
tracking data. It later wa... | [
{
"created": "Wed, 12 Sep 2007 15:48:34 GMT",
"version": "v1"
}
] | 2016-11-09 | [
[
"Nieto",
"Michael Martin",
""
],
[
"Anderson",
"John D.",
""
]
] | The 1972 and 1973 launched Pioneer 10 and 11 were the first missions to explore the outer solar system. They achieved stunning breakthroughs in deep-space exploration. But around 1980 an unmodeled force of \sim 8 \times 10^{-8} cm/s^2, directed approximately towards the Sun, appeared in the tracking data. It later was ... |
gr-qc/0605094 | Samad Khakshournia | S. Ghassemi, S. Khakshournia, and R. Mansouri | Generalized Friedmann Equations for a Finite Thick Brane | 13 pages | JHEP 0608 (2006) 019 | 10.1088/1126-6708/2006/08/019 | null | gr-qc astro-ph hep-th | null | We present the generalized Friedmann equations describing the cosmological
evolution of a finite thick brane immeresed in a five-dimensional Schwarzschild
Anti-de Sitter spacetime. A linear term in the density in addition to a
quatratic one arises in the Friedmann equation, leading to the standard
cosmological evolut... | [
{
"created": "Wed, 17 May 2006 06:56:23 GMT",
"version": "v1"
}
] | 2009-11-11 | [
[
"Ghassemi",
"S.",
""
],
[
"Khakshournia",
"S.",
""
],
[
"Mansouri",
"R.",
""
]
] | We present the generalized Friedmann equations describing the cosmological evolution of a finite thick brane immeresed in a five-dimensional Schwarzschild Anti-de Sitter spacetime. A linear term in the density in addition to a quatratic one arises in the Friedmann equation, leading to the standard cosmological evolutio... |
gr-qc/0305029 | Piotr Chrusciel | Myeongju Chae, Piotr T. Chrusciel | On the dynamics of Gowdy space times | latex 2e, a few figures, several style files, 69 pages | null | null | null | gr-qc | null | We study the behavior near the singularity t=0 of Gowdy metrics. We prove
existence of an open dense set of boundary points near which the solution is
smoothly "asymptotically velocity term dominated" (AVTD). We show that the set
of AVTD solutions satisfying a uniformity condition is open in the set of all
solutions.... | [
{
"created": "Thu, 8 May 2003 08:54:26 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Chae",
"Myeongju",
""
],
[
"Chrusciel",
"Piotr T.",
""
]
] | We study the behavior near the singularity t=0 of Gowdy metrics. We prove existence of an open dense set of boundary points near which the solution is smoothly "asymptotically velocity term dominated" (AVTD). We show that the set of AVTD solutions satisfying a uniformity condition is open in the set of all solutions. W... |
1311.1353 | Vassil Tinchev | Vassil K. Tinchev, Stoytcho S. Yazadjiev | Possible imprints of cosmic strings in the shadows of galactic black
holes | 13 pages, 7 figures;v2 references added | null | 10.1142/S0218271814500606 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We examine the shadow cast by a Kerr black hole pierced by a cosmic string.
The observable images depend not only on the black hole spin parameter and the
angle of inclination, but also on the deficit angle yielded by the cosmic
string. The dependence of the observable characteristics of the shadow on the
deficit ang... | [
{
"created": "Wed, 6 Nov 2013 11:19:47 GMT",
"version": "v1"
},
{
"created": "Thu, 14 Nov 2013 14:25:40 GMT",
"version": "v2"
}
] | 2015-06-17 | [
[
"Tinchev",
"Vassil K.",
""
],
[
"Yazadjiev",
"Stoytcho S.",
""
]
] | We examine the shadow cast by a Kerr black hole pierced by a cosmic string. The observable images depend not only on the black hole spin parameter and the angle of inclination, but also on the deficit angle yielded by the cosmic string. The dependence of the observable characteristics of the shadow on the deficit angle... |
2207.13106 | Rossella Gamba | Rossella Gamba, Sebastiano Bernuzzi | Resonant tides in binary neutron star mergers: analytical-numerical
relativity study | 9 pages, 9 figures | null | 10.1103/PhysRevD.107.044014 | null | gr-qc astro-ph.HE | http://creativecommons.org/licenses/by/4.0/ | Resonant excitations of $f$-modes in binary neutron star coalescences
influence the gravitational waves (GWs) emission in both quasicircular and
highly eccentric mergers and can deliver information on the star interior. Most
models of resonant tides are built using approximate, perturbative approaches
and thus requir... | [
{
"created": "Tue, 26 Jul 2022 18:00:05 GMT",
"version": "v1"
}
] | 2023-02-22 | [
[
"Gamba",
"Rossella",
""
],
[
"Bernuzzi",
"Sebastiano",
""
]
] | Resonant excitations of $f$-modes in binary neutron star coalescences influence the gravitational waves (GWs) emission in both quasicircular and highly eccentric mergers and can deliver information on the star interior. Most models of resonant tides are built using approximate, perturbative approaches and thus require ... |
0810.0990 | Jane MacGibbon | Jane H MacGibbon | Reply to Flambaum Commentary [arXiv:0808.2518] on Black Hole Constraints
on Varying Fundamental Constants [arXiv:0706.2188, PRL 99, 061301 (2007)] | 2 pages; published version | Phys.Rev.Lett.102:069002,2009 | 10.1103/PhysRevLett.102.069002 | null | gr-qc astro-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We discuss the Flambaum commentary [arXiv:0808.2518] on the application of
the Generalized Second Law of Thermodynamics to derive limits on the variation
of fundamental constants, for example the fine structure constant.
| [
{
"created": "Mon, 6 Oct 2008 19:15:08 GMT",
"version": "v1"
},
{
"created": "Tue, 27 Jan 2009 20:55:32 GMT",
"version": "v2"
},
{
"created": "Fri, 13 Feb 2009 20:45:20 GMT",
"version": "v3"
}
] | 2009-02-27 | [
[
"MacGibbon",
"Jane H",
""
]
] | We discuss the Flambaum commentary [arXiv:0808.2518] on the application of the Generalized Second Law of Thermodynamics to derive limits on the variation of fundamental constants, for example the fine structure constant. |
2010.08979 | Alexander Tsirulev | Ivan Potashov, Julia Tchemarina and Alexander Tsirulev | Null and Timelike Geodesics Near the Throats of Phantom Scalar Field
Wormholes | 18 pages, 6 figures | Universe 2020, 6(10), 183 | 10.3390/universe6100183 | null | gr-qc astro-ph.GA | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study geodesic motion near the throats of asymptotically flat, static,
spherically~symmetric traversable wormholes supported by a self-gravitating
minimally coupled phantom scalar field with an arbitrary self-interaction
potential. We assume that any such wormhole possesses the reflection symmetry
with respect to ... | [
{
"created": "Sun, 18 Oct 2020 13:06:08 GMT",
"version": "v1"
}
] | 2020-10-20 | [
[
"Potashov",
"Ivan",
""
],
[
"Tchemarina",
"Julia",
""
],
[
"Tsirulev",
"Alexander",
""
]
] | We study geodesic motion near the throats of asymptotically flat, static, spherically~symmetric traversable wormholes supported by a self-gravitating minimally coupled phantom scalar field with an arbitrary self-interaction potential. We assume that any such wormhole possesses the reflection symmetry with respect to th... |
gr-qc/0210027 | Tomohiro Harada | Tomohiro Harada, Hideki Maeda and Benoit Semelin | Criticality and convergence in Newtonian collapse | 15 pages, 8 figures, accepted for publication in PRD, figures 1 and 3
at lower resolution than in journal version, typos corrected | Phys.Rev. D67 (2003) 084003 | 10.1103/PhysRevD.67.084003 | WU-AP/153/02 | gr-qc astro-ph | null | We study through numerical simulation the spherical collapse of isothermal
gas in Newtonian gravity. We observe a critical behavior which occurs at the
threshold of gravitational instability leading to core formation. For a given
initial density profile, we find a critical temperature, which is of the same
order as t... | [
{
"created": "Wed, 9 Oct 2002 01:44:38 GMT",
"version": "v1"
},
{
"created": "Mon, 17 Feb 2003 03:42:48 GMT",
"version": "v2"
},
{
"created": "Thu, 20 Mar 2003 08:12:43 GMT",
"version": "v3"
}
] | 2009-11-07 | [
[
"Harada",
"Tomohiro",
""
],
[
"Maeda",
"Hideki",
""
],
[
"Semelin",
"Benoit",
""
]
] | We study through numerical simulation the spherical collapse of isothermal gas in Newtonian gravity. We observe a critical behavior which occurs at the threshold of gravitational instability leading to core formation. For a given initial density profile, we find a critical temperature, which is of the same order as the... |
2108.00419 | Grigory Volovik | G.E. Volovik | Macroscopic quantum tunneling: from quantum vortices to black holes and
Universe | 22 pages, no figures, accepted in JETP, arXiv admin note: text
overlap with arXiv:2103.10954, arXiv:2107.11193 | null | 10.1134/S1063776122100120 | null | gr-qc cond-mat.other | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The paper has been prepared for the JETP issue, dedicated to the 95th
anniversary of the birth of E.I. Rashba. E. Rashba stood at the origins of
macroscopic quantum tunneling together with his colleagues from the Landau
Institute S.V. Iordansky and A.M. Finkelshtein. They pave the way for studying
macroscopic quantum... | [
{
"created": "Sun, 1 Aug 2021 10:09:59 GMT",
"version": "v1"
},
{
"created": "Sun, 22 May 2022 09:56:45 GMT",
"version": "v10"
},
{
"created": "Mon, 16 Aug 2021 07:29:51 GMT",
"version": "v2"
},
{
"created": "Fri, 10 Sep 2021 19:51:45 GMT",
"version": "v3"
},
{
"c... | 2022-12-28 | [
[
"Volovik",
"G. E.",
""
]
] | The paper has been prepared for the JETP issue, dedicated to the 95th anniversary of the birth of E.I. Rashba. E. Rashba stood at the origins of macroscopic quantum tunneling together with his colleagues from the Landau Institute S.V. Iordansky and A.M. Finkelshtein. They pave the way for studying macroscopic quantum t... |
1412.0775 | Yaser Tavakoli | Yaser Tavakoli and Julio C. Fabris | Creation of particles in a cyclic universe driven by loop quantum
cosmology | 10 pages, 2 figures | Int. J. Mod. Phys. D 24, No. 8 (2015) 1550062 | 10.1142/S0218271815500625 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider an isotropic and homogeneous universe in loop quantum cosmology.
We assume that the matter content of the universe is dominated by dust matter
in early time and a phantom matter at late time which constitutes the dark
energy component. The quantum gravity modifications to the Friedmann equation
in this mo... | [
{
"created": "Tue, 2 Dec 2014 03:49:10 GMT",
"version": "v1"
},
{
"created": "Fri, 22 May 2015 20:07:05 GMT",
"version": "v2"
}
] | 2015-05-26 | [
[
"Tavakoli",
"Yaser",
""
],
[
"Fabris",
"Julio C.",
""
]
] | We consider an isotropic and homogeneous universe in loop quantum cosmology. We assume that the matter content of the universe is dominated by dust matter in early time and a phantom matter at late time which constitutes the dark energy component. The quantum gravity modifications to the Friedmann equation in this mode... |
gr-qc/9805022 | Patrizia Vitale | G. Bimonte, R. Musto, A. Stern and P. Vitale | Comments on the Non-Commutative Description of Classical Gravity | Latex file, 13 pages, no figures | Phys.Lett. B441 (1998) 69-76 | 10.1016/S0370-2693(98)01200-3 | UAHEP 982, DSF-12/98 | gr-qc hep-th | null | We find a one-parameter family of Lagrangian descriptions for classical
general relativity in terms of tetrads which are not c-numbers. Rather, they
obey exotic commutation relations. These noncommutative properties drop out in
the metric sector of the theory, where the Christoffel symbols and the Riemann
tensor are ... | [
{
"created": "Thu, 7 May 1998 12:52:43 GMT",
"version": "v1"
}
] | 2009-10-31 | [
[
"Bimonte",
"G.",
""
],
[
"Musto",
"R.",
""
],
[
"Stern",
"A.",
""
],
[
"Vitale",
"P.",
""
]
] | We find a one-parameter family of Lagrangian descriptions for classical general relativity in terms of tetrads which are not c-numbers. Rather, they obey exotic commutation relations. These noncommutative properties drop out in the metric sector of the theory, where the Christoffel symbols and the Riemann tensor are or... |
gr-qc/0205026 | Sigbjorn Hervik | Oyvind Gron and Sigbjorn Hervik | The Weyl Curvature Conjecture | 21 pages, 4 ps figures | null | null | null | gr-qc astro-ph | null | In this paper we review Penrose's Weyl curvature conjecture which states that
the concept of gravitational entropy and the Weyl tensor is somehow linked, at
least in a cosmological setting. We give a description of a certain entity
constructed from the Weyl tensor, from the very early history of our universe
until th... | [
{
"created": "Tue, 7 May 2002 13:12:56 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Gron",
"Oyvind",
""
],
[
"Hervik",
"Sigbjorn",
""
]
] | In this paper we review Penrose's Weyl curvature conjecture which states that the concept of gravitational entropy and the Weyl tensor is somehow linked, at least in a cosmological setting. We give a description of a certain entity constructed from the Weyl tensor, from the very early history of our universe until the ... |
1506.03809 | Andreas Nink | Maximilian Demmel and Andreas Nink | Connections and geodesics in the space of metrics | 15 pages, 3 figures (V2: more clarifying remarks in sections IV and
V. V3: additional comment in section IV, version published in PRD) | Phys. Rev. D 92, 104013 (2015) | 10.1103/PhysRevD.92.104013 | MITP/15-041 | gr-qc hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We argue that the exponential relation $g_{\mu\nu} =
\bar{g}_{\mu\rho}\big(\mathrm{e}^h\big)^\rho{}_\nu$ is the most natural metric
parametrization since it describes geodesics that follow from the basic
structure of the space of metrics. The corresponding connection is derived, and
its relation to the Levi-Civita co... | [
{
"created": "Thu, 11 Jun 2015 19:57:48 GMT",
"version": "v1"
},
{
"created": "Wed, 16 Sep 2015 08:16:16 GMT",
"version": "v2"
},
{
"created": "Mon, 9 Nov 2015 16:02:15 GMT",
"version": "v3"
}
] | 2015-11-11 | [
[
"Demmel",
"Maximilian",
""
],
[
"Nink",
"Andreas",
""
]
] | We argue that the exponential relation $g_{\mu\nu} = \bar{g}_{\mu\rho}\big(\mathrm{e}^h\big)^\rho{}_\nu$ is the most natural metric parametrization since it describes geodesics that follow from the basic structure of the space of metrics. The corresponding connection is derived, and its relation to the Levi-Civita conn... |
gr-qc/9512037 | Sergei N. Vergeles | S.N. Vergeles | A new approach to quantization of gravity. 2+1-dimensional example | 30 pages, LaTex, no figures | null | null | null | gr-qc | null | In this paper the quantization of the 2$+$1-dimensional gravity couplet to
the massless Dirac field is carried out. The problem is solved by the
application of the new Dynamic Quantization Method [1,2]. It is well-known that
in general covariant theories such as gravitation, a Hamiltonian is any linear
combination of... | [
{
"created": "Wed, 20 Dec 1995 17:18:05 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Vergeles",
"S. N.",
""
]
] | In this paper the quantization of the 2$+$1-dimensional gravity couplet to the massless Dirac field is carried out. The problem is solved by the application of the new Dynamic Quantization Method [1,2]. It is well-known that in general covariant theories such as gravitation, a Hamiltonian is any linear combination of t... |
2406.09487 | Marek Czachor | Marek Czachor | Three-space as a quantum hyper-layer in 1+3 dimensions | A sequel to M. Czachor, "Cosmic-time quantum mechanics and the
passage-of-time problem", Universe 9, 188 (2023).
https://doi.org/10.3390/universe9040188 | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We discuss a formalism where a universe is identified with the support of a
wave function propagating through space-time. As opposed to classical
cosmology, the resulting universe is not a spacelike section of some
space-time, but a hyper-layer of a finite timelike width, a set which is not a
three-dimensional subman... | [
{
"created": "Thu, 13 Jun 2024 15:26:19 GMT",
"version": "v1"
}
] | 2024-06-17 | [
[
"Czachor",
"Marek",
""
]
] | We discuss a formalism where a universe is identified with the support of a wave function propagating through space-time. As opposed to classical cosmology, the resulting universe is not a spacelike section of some space-time, but a hyper-layer of a finite timelike width, a set which is not a three-dimensional submanif... |
2401.04597 | Christian Boehmer | Christian G. Boehmer, Antonio d'Alfonso del Sordo, Betti Hartmann | Azimuthal geodesics in closed FLRW cosmologies | 7 pages | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Modern cosmology is closely linked to our understanding of radial null
geodesics as these model the propagation of light signals through an expanding
universe. Azimuthal geodesics, on the other hand, are perhaps best known for
their relevance within closed cosmological models. Such models typically have a
finite life... | [
{
"created": "Tue, 9 Jan 2024 15:06:42 GMT",
"version": "v1"
}
] | 2024-01-10 | [
[
"Boehmer",
"Christian G.",
""
],
[
"del Sordo",
"Antonio d'Alfonso",
""
],
[
"Hartmann",
"Betti",
""
]
] | Modern cosmology is closely linked to our understanding of radial null geodesics as these model the propagation of light signals through an expanding universe. Azimuthal geodesics, on the other hand, are perhaps best known for their relevance within closed cosmological models. Such models typically have a finite lifeti... |
gr-qc/9812043 | Claus Kiefer | A. Barvinsky, A. Kamenshchik, C. Kiefer, I. Mishakov | Decoherence in quantum cosmology at the onset of inflation | LATEX, 26 pages | Nucl.Phys. B551 (1999) 374-396 | 10.1016/S0550-3213(99)00208-4 | Freiburg THEP-98/26 | gr-qc | null | We calculate the reduced density matrix for the inflaton field in a model of
chaotic inflation by tracing out degrees of freedom corresponding to various
bosonic fields. We find a qualitatively new contribution to the density matrix
given by the Euclidean effective action of quantum fields. We regularise the
ultravio... | [
{
"created": "Sat, 12 Dec 1998 16:06:58 GMT",
"version": "v1"
}
] | 2009-10-31 | [
[
"Barvinsky",
"A.",
""
],
[
"Kamenshchik",
"A.",
""
],
[
"Kiefer",
"C.",
""
],
[
"Mishakov",
"I.",
""
]
] | We calculate the reduced density matrix for the inflaton field in a model of chaotic inflation by tracing out degrees of freedom corresponding to various bosonic fields. We find a qualitatively new contribution to the density matrix given by the Euclidean effective action of quantum fields. We regularise the ultraviole... |
1206.2107 | Juan Manuel Garcia-Islas | J. Manuel Garcia-Islas | Measurements and Information in Spin Foam Models | 15 pages, 3 figures. Improved version | International Journal of Modern Physics A, Volume: 27, Number: 28
2012, 1250164 | 10.1142/S0217751X12501643 | null | gr-qc math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present a problem relating measurements and information theory in spin
foam models. In the three dimensional case of quantum gravity we can compute
probabilities of spin network graphs and study the behaviour of the Shannon
entropy associated to the corresponding information. We present a general
definition, compu... | [
{
"created": "Mon, 11 Jun 2012 06:40:32 GMT",
"version": "v1"
},
{
"created": "Mon, 28 Jan 2013 18:40:50 GMT",
"version": "v2"
}
] | 2015-06-05 | [
[
"Garcia-Islas",
"J. Manuel",
""
]
] | We present a problem relating measurements and information theory in spin foam models. In the three dimensional case of quantum gravity we can compute probabilities of spin network graphs and study the behaviour of the Shannon entropy associated to the corresponding information. We present a general definition, compute... |
1009.6013 | Nicolas Yunes | Nicolas Yunes, Alessandra Buonanno, Scott A. Hughes, Yi Pan, Enrico
Barausse, M. Coleman Miller, William Throwe | Extreme Mass-Ratio Inspirals in the Effective-One-Body Approach:
Quasi-Circular, Equatorial Orbits around a Spinning Black Hole | 21 pages, 8 figures, submitted to Phys. Rev. D | Phys.Rev.D83:044044,2011 | 10.1103/PhysRevD.83.044044 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We construct effective-one-body waveform models suitable for data analysis
with LISA for extreme-mass ratio inspirals in quasi-circular, equatorial orbits
about a spinning supermassive black hole. The accuracy of our model is
established through comparisons against frequency-domain, Teukolsky-based
waveforms in the r... | [
{
"created": "Wed, 29 Sep 2010 22:54:46 GMT",
"version": "v1"
}
] | 2011-03-23 | [
[
"Yunes",
"Nicolas",
""
],
[
"Buonanno",
"Alessandra",
""
],
[
"Hughes",
"Scott A.",
""
],
[
"Pan",
"Yi",
""
],
[
"Barausse",
"Enrico",
""
],
[
"Miller",
"M. Coleman",
""
],
[
"Throwe",
"William",
""
]
] | We construct effective-one-body waveform models suitable for data analysis with LISA for extreme-mass ratio inspirals in quasi-circular, equatorial orbits about a spinning supermassive black hole. The accuracy of our model is established through comparisons against frequency-domain, Teukolsky-based waveforms in the rad... |
1304.5626 | Muxin Han | Muxin Han, Thomas Krajewski | Path Integral Representation of Lorentzian Spinfoam Model, Asymptotics,
and Simplicial Geometries | 35 pages, no figure | Class. Quantum Grav. 31 (2014) 015009 | 10.1088/0264-9381/31/1/015009 | null | gr-qc hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A new path integral representation of Lorentzian Engle-Pereira-Rovelli-Livine
(EPRL) spinfoam model is derived by employing the theory of unitary
representation of SL(2,$\mathbb{C}$). The path integral representation is taken
as a starting point of semiclassical analysis. The relation between the
spinfoam model and c... | [
{
"created": "Sat, 20 Apr 2013 12:27:45 GMT",
"version": "v1"
},
{
"created": "Sat, 16 Nov 2013 14:26:52 GMT",
"version": "v2"
},
{
"created": "Sat, 18 Feb 2023 01:19:18 GMT",
"version": "v3"
},
{
"created": "Tue, 10 Oct 2023 01:23:35 GMT",
"version": "v4"
}
] | 2023-10-11 | [
[
"Han",
"Muxin",
""
],
[
"Krajewski",
"Thomas",
""
]
] | A new path integral representation of Lorentzian Engle-Pereira-Rovelli-Livine (EPRL) spinfoam model is derived by employing the theory of unitary representation of SL(2,$\mathbb{C}$). The path integral representation is taken as a starting point of semiclassical analysis. The relation between the spinfoam model and cla... |
gr-qc/0209078 | Leonid V. Verozub | L. Verozub and A. Kochetov | Testing of Metric-Field Equations of Gravitation by Binary Pulsar | 8 pages, 1 figure, latex | Grav.Cosmol. 6 (2000) 246 | null | null | gr-qc astro-ph | null | Testing of the gravitation equations, proposed by one of the authors earlier,
by a binary pulsar is considered. It has been shown that the formulas for the
gravitation radiation of the system resulting from the equations do not
contradict the available observations data.
| [
{
"created": "Sun, 22 Sep 2002 12:42:21 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Verozub",
"L.",
""
],
[
"Kochetov",
"A.",
""
]
] | Testing of the gravitation equations, proposed by one of the authors earlier, by a binary pulsar is considered. It has been shown that the formulas for the gravitation radiation of the system resulting from the equations do not contradict the available observations data. |
2007.14019 | Gungwon Kang | Yeong-Bok Bae, Hyung Mok Lee and Gungwon Kang | Gravitational Wave Capture in Spinning Black Hole Encounters | 14 pages, 7 figures, to be published on The Astrophysical Journal | null | null | null | gr-qc astro-ph.HE hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The orbits of two black holes which are initially unbound can be transformed
into bound orbits by emitting gravitational waves during close encounters in a
star cluster, which is called a gravitational wave (GW) capture. The effects of
spin of black holes on GW capture are investigated in the context of numerical
rel... | [
{
"created": "Tue, 28 Jul 2020 06:52:43 GMT",
"version": "v1"
}
] | 2020-07-29 | [
[
"Bae",
"Yeong-Bok",
""
],
[
"Lee",
"Hyung Mok",
""
],
[
"Kang",
"Gungwon",
""
]
] | The orbits of two black holes which are initially unbound can be transformed into bound orbits by emitting gravitational waves during close encounters in a star cluster, which is called a gravitational wave (GW) capture. The effects of spin of black holes on GW capture are investigated in the context of numerical relat... |
0910.1198 | Izzet Sakalli | H.Pasaoglu and I.Sakalli | Hawking Radiation of Linear Dilaton Black Holes in Various Theories | Typing mistakes in eq.32 have been corrected. The obtained radiation
spectrum is pure thermal! Namely, the information is lost in the process of
Hawking radiation. To be published in IJTP | Int.J.Theor.Phys.48:3517-3525,2009 | 10.1007/s10773-009-0156-1 | null | gr-qc | http://creativecommons.org/licenses/publicdomain/ | Using the Damour-Ruffini-Sannan, the Parikh-Wilczek and the thin film
brick-wall models, we investigate the Hawking radiation of uncharged massive
particles from 4-dimensional linear dilaton black holes, which are the
solutions to Einstein-Maxwell-Dilaton, Einstein-Yang-Mills-Dilaton and
Einstein-Yang-Mills-Born-Infe... | [
{
"created": "Wed, 7 Oct 2009 09:28:38 GMT",
"version": "v1"
},
{
"created": "Thu, 8 Oct 2009 06:53:42 GMT",
"version": "v2"
}
] | 2010-03-25 | [
[
"Pasaoglu",
"H.",
""
],
[
"Sakalli",
"I.",
""
]
] | Using the Damour-Ruffini-Sannan, the Parikh-Wilczek and the thin film brick-wall models, we investigate the Hawking radiation of uncharged massive particles from 4-dimensional linear dilaton black holes, which are the solutions to Einstein-Maxwell-Dilaton, Einstein-Yang-Mills-Dilaton and Einstein-Yang-Mills-Born-Infeld... |
2005.13561 | Christian Pfeifer | Manuel Hohmann, Christian Pfeifer, Nicoleta Voicu | The kinetic gas universe | 4 pages, Essay written for the Gravity Research Foundation
competition 2020, Journal references updated | Eur. Phys. J. C 80, 809 (2020) | 10.1140/epjc/s10052-020-8391-y | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A description of many-particle systems, which is more fundamental than the
fluid approach, is to consider them as a kinetic gas. In this approach the
dynamical variable in which the properties of the system are encoded, is the
distribution of the gas particles in position and velocity space, called
1-particle distrib... | [
{
"created": "Wed, 27 May 2020 18:00:09 GMT",
"version": "v1"
},
{
"created": "Sun, 6 Sep 2020 15:08:27 GMT",
"version": "v2"
}
] | 2020-09-08 | [
[
"Hohmann",
"Manuel",
""
],
[
"Pfeifer",
"Christian",
""
],
[
"Voicu",
"Nicoleta",
""
]
] | A description of many-particle systems, which is more fundamental than the fluid approach, is to consider them as a kinetic gas. In this approach the dynamical variable in which the properties of the system are encoded, is the distribution of the gas particles in position and velocity space, called 1-particle distribut... |
0707.0199 | Subenoy Chakraborty | Subenoy Chakraborty, Asit Banerjee and Tanwi Bandyopadhyay | Matter in the Bulk and its Consequences on the Brane: A Possible Source
of Dark Energy | 3 pages, no figure | null | null | null | gr-qc | null | The usual brane world scenario with anti de Sitter bulk has been generalized
by considering a general form of energy momentum tensor in the bulk. The
modified Einstein equation on the brane has been constructed. Two examples have
been cited of which, the first one shows the usual brane equations when matter
in the bu... | [
{
"created": "Mon, 2 Jul 2007 11:46:33 GMT",
"version": "v1"
}
] | 2007-07-03 | [
[
"Chakraborty",
"Subenoy",
""
],
[
"Banerjee",
"Asit",
""
],
[
"Bandyopadhyay",
"Tanwi",
""
]
] | The usual brane world scenario with anti de Sitter bulk has been generalized by considering a general form of energy momentum tensor in the bulk. The modified Einstein equation on the brane has been constructed. Two examples have been cited of which, the first one shows the usual brane equations when matter in the bulk... |
2210.09154 | Lorenzo Iorio | Lorenzo Iorio | Frame-Dragging in Extrasolar Circumbinary Planetary Systems | LaTex2e, 15 pages, no tables, 2 figures. Accepted for publication in
Universe | Universe 2022, 8(10), 546 | 10.3390/universe8100546 | null | gr-qc astro-ph.EP physics.space-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Extrasolar circumbinary planets are so called because they orbit two stars
instead of just one; to date, an increasing number of such planets have been
discovered with a variety of techniques. If the orbital frequency of the
hosting stellar pair is much higher than the planetary one, the tight stellar
binary can be c... | [
{
"created": "Mon, 17 Oct 2022 15:00:22 GMT",
"version": "v1"
}
] | 2022-10-24 | [
[
"Iorio",
"Lorenzo",
""
]
] | Extrasolar circumbinary planets are so called because they orbit two stars instead of just one; to date, an increasing number of such planets have been discovered with a variety of techniques. If the orbital frequency of the hosting stellar pair is much higher than the planetary one, the tight stellar binary can be con... |
gr-qc/0211039 | Jacek Jezierski | Jacek Jezierski | CYK Tensors, Maxwell Field and Conserved Quantities for Spin-2 Field | 20 pages, LaTeX | Class.Quant.Grav. 19 (2002) 4405-4429 | 10.1088/0264-9381/19/16/313 | null | gr-qc | null | Starting from an important application of Conformal Yano--Killing tensors for
the existence of global charges in gravity, some new observations at $\scri^+$
are given. They allow to define asymptotic charges (at future null infinity) in
terms of the Weyl tensor together with their fluxes through $\scri^+$. It
occurs ... | [
{
"created": "Tue, 12 Nov 2002 11:36:24 GMT",
"version": "v1"
}
] | 2016-08-31 | [
[
"Jezierski",
"Jacek",
""
]
] | Starting from an important application of Conformal Yano--Killing tensors for the existence of global charges in gravity, some new observations at $\scri^+$ are given. They allow to define asymptotic charges (at future null infinity) in terms of the Weyl tensor together with their fluxes through $\scri^+$. It occurs th... |
1409.5941 | Rui Chen | Ge-Rui Chen, Shiwei Zhou, and Yong-Chang Huang | Vector particles tunneling from BTZ black holes | null | International Journal of Modern Physics D,24,1550005(2015) | 10.1142/S0218271815500054 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper we investigate vector particles' Hawking radiation from a BTZ
black hole. By applying the WKB approximation and the Hamilton-Jacobi Ansatz to
the Proca equation, we obtain the tunneling spectrum of vector particles. The
expected Hawking temperature is recovered.
| [
{
"created": "Sun, 21 Sep 2014 05:18:12 GMT",
"version": "v1"
}
] | 2015-02-03 | [
[
"Chen",
"Ge-Rui",
""
],
[
"Zhou",
"Shiwei",
""
],
[
"Huang",
"Yong-Chang",
""
]
] | In this paper we investigate vector particles' Hawking radiation from a BTZ black hole. By applying the WKB approximation and the Hamilton-Jacobi Ansatz to the Proca equation, we obtain the tunneling spectrum of vector particles. The expected Hawking temperature is recovered. |
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