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2010.14059 | Mu-Tao Wang | Mu-Tao Wang | Limits of quasi-local angular momentum on an isolated gravitating system | Conference on Differential Geometry, Calabi-Yau Theory, and General
Relativity in celebration of the 70th Birthday of Shing-Tung Yau. arXiv admin
note: text overlap with arXiv:2003.07732 | null | null | null | gr-qc math-ph math.AP math.DG math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | I shall discuss the Chen-Wang-Yau quasilocal angular momentum, which is
defined based on the theory of optimal isometric embedding and quasilocal mass
of Wang-Yau, and the limits of which at spatial and null infinity of an
isolated gravitating system. This is based on joint work with Po-Ning Chen,
Jordan Keller, Ye-K... | [
{
"created": "Fri, 23 Oct 2020 21:39:08 GMT",
"version": "v1"
}
] | 2020-10-28 | [
[
"Wang",
"Mu-Tao",
""
]
] | I shall discuss the Chen-Wang-Yau quasilocal angular momentum, which is defined based on the theory of optimal isometric embedding and quasilocal mass of Wang-Yau, and the limits of which at spatial and null infinity of an isolated gravitating system. This is based on joint work with Po-Ning Chen, Jordan Keller, Ye-Kai... |
2206.04964 | Alfredo Bautista | A. Bautista, A. Ibort, J. Lafuente | The space of light rays: Causality and $L$-boundary | 57 pages, 15 figures, accepted for publication in the topical
collection of General Relativity and Gravitation dedicated to the meeting
Singularity theorems, causality, and all that (SCRI21) in honor of Roger
Penrose | null | 10.1007/s10714-022-02942-3 | null | gr-qc math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The space of light rays $\mathcal{N}$ of a conformal Lorentz manifold
$(M,\mathcal{C})$ is, under some topological conditions, a manifold whose basic
elements are unparametrized null geodesics. This manifold $\mathcal{N}$,
strongly inspired on R. Penrose's twistor theory, keeps all information of $M$
and it could be ... | [
{
"created": "Fri, 10 Jun 2022 09:36:06 GMT",
"version": "v1"
}
] | 2022-06-29 | [
[
"Bautista",
"A.",
""
],
[
"Ibort",
"A.",
""
],
[
"Lafuente",
"J.",
""
]
] | The space of light rays $\mathcal{N}$ of a conformal Lorentz manifold $(M,\mathcal{C})$ is, under some topological conditions, a manifold whose basic elements are unparametrized null geodesics. This manifold $\mathcal{N}$, strongly inspired on R. Penrose's twistor theory, keeps all information of $M$ and it could be us... |
gr-qc/9609055 | Bijan Saha | B. Saha and G. N. Shikin | Nonlinear Spinor Field in Bianchi type-I Universe filled with Perfect
Fluid: Exact Self-consistent Solutions | LaTex, 15 pages. Submitted to the Journal of Mathematical Physics | J.Math.Phys. 38 (1997) 5305-5318 | 10.1063/1.531944 | null | gr-qc | null | Self-consistent solutions to nonlinear spinor field equations in General
Relativity have been studied for the case of Bianchi type-I space-time filled
with perfect fluid. The initial and the asymptotic behavior of the field
functions and the metric one has been thoroughly studied. It should be
emphasized the absence ... | [
{
"created": "Tue, 24 Sep 1996 14:06:12 GMT",
"version": "v1"
}
] | 2009-10-28 | [
[
"Saha",
"B.",
""
],
[
"Shikin",
"G. N.",
""
]
] | Self-consistent solutions to nonlinear spinor field equations in General Relativity have been studied for the case of Bianchi type-I space-time filled with perfect fluid. The initial and the asymptotic behavior of the field functions and the metric one has been thoroughly studied. It should be emphasized the absence of... |
1005.2996 | Piero Nicolini | Piero Nicolini | Entropic force, noncommutative gravity and ungravity | 8 pages, final version published on Physical Review D | Phys.Rev.D82:044030,2010 | 10.1103/PhysRevD.82.044030 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | After recalling the basic concepts of gravity as an emergent phenomenon, we
analyze the recent derivation of Newton's law in terms of entropic force
proposed by Verlinde. By reviewing some points of the procedure, we extend it
to the case of a generic quantum gravity entropic correction to get compelling
deviations t... | [
{
"created": "Mon, 17 May 2010 19:00:14 GMT",
"version": "v1"
},
{
"created": "Sun, 13 Jun 2010 11:11:36 GMT",
"version": "v2"
},
{
"created": "Fri, 13 Aug 2010 16:34:19 GMT",
"version": "v3"
}
] | 2014-11-21 | [
[
"Nicolini",
"Piero",
""
]
] | After recalling the basic concepts of gravity as an emergent phenomenon, we analyze the recent derivation of Newton's law in terms of entropic force proposed by Verlinde. By reviewing some points of the procedure, we extend it to the case of a generic quantum gravity entropic correction to get compelling deviations to ... |
gr-qc/0307052 | Rainer Dick | Rainer Dick | On the Newtonian Limit in Gravity Models with Inverse Powers of R | 8 pages | Gen.Rel.Grav. 36 (2004) 217-224 | 10.1023/B:GERG.0000006968.53367.59 | null | gr-qc astro-ph | null | I reconsider the problem of the Newtonian limit in nonlinear gravity models
in the light of recently proposed models with inverse powers of the Ricci
scalar.
Expansion around a maximally symmetric local background with positive
curvature scalar R_0 gives the correct Newtonian limit on length scales <<
R_0^{-1/2} if... | [
{
"created": "Thu, 10 Jul 2003 16:07:10 GMT",
"version": "v1"
}
] | 2009-11-10 | [
[
"Dick",
"Rainer",
""
]
] | I reconsider the problem of the Newtonian limit in nonlinear gravity models in the light of recently proposed models with inverse powers of the Ricci scalar. Expansion around a maximally symmetric local background with positive curvature scalar R_0 gives the correct Newtonian limit on length scales << R_0^{-1/2} if the... |
2303.04107 | Burkhard Kleihaus | Burkhard Kleihaus, Jutta Kunz, Tim Uterm\"ohlen, Emanuele Berti | Quadrupole instability of static scalarized black holes | 5 pages, 4 figures | null | 10.1103/PhysRevD.107.L081501 | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | The addition of a Ricci coupling to Einstein-scalar-Gauss-Bonnet theories
makes general relativity a cosmological attractor. Previous work considered a
quadratic coupling function with two independent coupling constants in such
theories and showed that static, spherically symmetric, spontaneously
scalarized black hol... | [
{
"created": "Tue, 7 Mar 2023 18:17:24 GMT",
"version": "v1"
}
] | 2023-05-10 | [
[
"Kleihaus",
"Burkhard",
""
],
[
"Kunz",
"Jutta",
""
],
[
"Utermöhlen",
"Tim",
""
],
[
"Berti",
"Emanuele",
""
]
] | The addition of a Ricci coupling to Einstein-scalar-Gauss-Bonnet theories makes general relativity a cosmological attractor. Previous work considered a quadratic coupling function with two independent coupling constants in such theories and showed that static, spherically symmetric, spontaneously scalarized black holes... |
gr-qc/0312030 | Mark A. Miller | Mark Miller, Philip Gressman, and Wai-Mo Suen | Towards a Realistic Neutron Star Binary Inspiral: Initial Data and
Multiple Orbit Evolution in Full General Relativity | 22 pages, 18 figures, accepted to Phys. Rev. D | Phys.Rev. D69 (2004) 064026 | 10.1103/PhysRevD.69.064026 | null | gr-qc astro-ph | null | This paper reports on our effort in modeling realistic astrophysical neutron
star binaries in general relativity. We analyze under what conditions the
conformally flat quasiequilibrium (CFQE) approach can generate
``astrophysically relevant'' initial data, by developing an analysis that
determines the violation of th... | [
{
"created": "Thu, 4 Dec 2003 16:59:26 GMT",
"version": "v1"
}
] | 2009-11-10 | [
[
"Miller",
"Mark",
""
],
[
"Gressman",
"Philip",
""
],
[
"Suen",
"Wai-Mo",
""
]
] | This paper reports on our effort in modeling realistic astrophysical neutron star binaries in general relativity. We analyze under what conditions the conformally flat quasiequilibrium (CFQE) approach can generate ``astrophysically relevant'' initial data, by developing an analysis that determines the violation of the ... |
2303.05810 | Enderson Falc\'on | Enderson Falc\'on-Gomez, Vittorio De Falco, Kerlos Atia Abdalmalak,
Adri\'an Amor-Mart\'in, Valent\'in De La Rubia, Gabriel Santamar\'ia-Botello,
Luis Enrique Garc\'ia Mu\~noz | Interaction between linear polarized plane gravitational waves and a
plane electromagnetic wave in the electromagnetic-gravity analogue | 10 pages, 4 figures, 2 tables. Accepted for publication on Physical
Review D | null | 10.1103/PhysRevD.107.124042 | null | gr-qc astro-ph.HE hep-th | http://creativecommons.org/licenses/by/4.0/ | We study the interaction among gravitational and electromagnetic plane waves
by means of an analogue electromagnetic model of gravity, where the
gravitational properties are encoded in the electromagnetic properties of a
material in flat space-time. In this setup, the variations in the metric tensor
produced by the g... | [
{
"created": "Fri, 10 Mar 2023 09:32:01 GMT",
"version": "v1"
}
] | 2023-07-05 | [
[
"Falcón-Gomez",
"Enderson",
""
],
[
"De Falco",
"Vittorio",
""
],
[
"Abdalmalak",
"Kerlos Atia",
""
],
[
"Amor-Martín",
"Adrián",
""
],
[
"De La Rubia",
"Valentín",
""
],
[
"Santamaría-Botello",
"Gabriel",
""
],
[
... | We study the interaction among gravitational and electromagnetic plane waves by means of an analogue electromagnetic model of gravity, where the gravitational properties are encoded in the electromagnetic properties of a material in flat space-time. In this setup, the variations in the metric tensor produced by the gra... |
2004.11334 | Carl-Johan Haster | Carl-Johan Haster, Katerina Chatziioannou, Andreas Bauswein, James
Alexander Clark | Inference of the neutron star equation of state from cosmological
distances | 8 pages, 4 figures | Phys. Rev. Lett. 125, 261101 (2020) | 10.1103/PhysRevLett.125.261101 | LIGO-P2000143 | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Finite-size effects on the gravitational wave signal from a neutron star
merger typically manifest at high frequencies where detector sensitivity
decreases. Proposed sensitivity improvements can give us access both to
stronger signals and to a myriad of weak signals from cosmological distances.
The latter will outnum... | [
{
"created": "Thu, 23 Apr 2020 17:29:39 GMT",
"version": "v1"
}
] | 2021-01-04 | [
[
"Haster",
"Carl-Johan",
""
],
[
"Chatziioannou",
"Katerina",
""
],
[
"Bauswein",
"Andreas",
""
],
[
"Clark",
"James Alexander",
""
]
] | Finite-size effects on the gravitational wave signal from a neutron star merger typically manifest at high frequencies where detector sensitivity decreases. Proposed sensitivity improvements can give us access both to stronger signals and to a myriad of weak signals from cosmological distances. The latter will outnumbe... |
0709.3866 | Michael Martin Nieto | Michael Martin Nieto and John D. Anderson | Search for a Solution of the Pioneer Anomaly | 24 pages 8 figures | Contemp.Phys.48:41-54,2007 | 10.1080/00107510701462061 | LA-UR-07-2169 | gr-qc | null | In 1972 and 1973 the Pioneer 10 and 11 missions were launched. They were the
first to explore the outer solar system and achieved stunning breakthroughs in
deep-space exploration. But beginning in about 1980 an unmodeled force of \sim
8 \times 10^{-8} cm/s^2, directed approximately towards the Sun, appeared in
the tr... | [
{
"created": "Tue, 25 Sep 2007 02:14:36 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Nieto",
"Michael Martin",
""
],
[
"Anderson",
"John D.",
""
]
] | In 1972 and 1973 the Pioneer 10 and 11 missions were launched. They were the first to explore the outer solar system and achieved stunning breakthroughs in deep-space exploration. But beginning in about 1980 an unmodeled force of \sim 8 \times 10^{-8} cm/s^2, directed approximately towards the Sun, appeared in the trac... |
1008.3841 | Alfonso Garc\'ia-Parrado G\'omez-Lobo Dr. | Alfonso Garc\'ia-Parrado G\'omez-Lobo | A note on time-symmetric hypersurfaces in the Schwarzschild geometry | Proof of corollary 2 extended to include hypersurfaces with null
regions. Some additional considerations in section 4 dealing with
hypersurfaces of arbitrary causal character added. References added, To
appear in classical and quantum gravity | Class.Quant.Grav.27:217001,2010 | 10.1088/0264-9381/27/21/217001 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this note we show that any inextensible time-symmetric space-like
hypersurface of differentiability class $C^k$, $k\geq 2$ isometrically embedded
in the maximal Schwarzschild geometry must intersect the bifurcation sphere.
| [
{
"created": "Mon, 23 Aug 2010 15:56:31 GMT",
"version": "v1"
},
{
"created": "Wed, 22 Sep 2010 16:29:30 GMT",
"version": "v2"
}
] | 2010-11-13 | [
[
"Gómez-Lobo",
"Alfonso García-Parrado",
""
]
] | In this note we show that any inextensible time-symmetric space-like hypersurface of differentiability class $C^k$, $k\geq 2$ isometrically embedded in the maximal Schwarzschild geometry must intersect the bifurcation sphere. |
1905.07981 | Takafumi Kokubu | Takafumi Kokubu and Tomohiro Harada | Burst particle creation in gravitational collapse to a horizonless
compact object | 30 pages, 12 figures | Phys. Rev. D 100, 084028 (2019) | 10.1103/PhysRevD.100.084028 | RUP-19-14 | gr-qc astro-ph.HE hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In the previous paper [Harada, Cardoso, and Miyata, Phys.\ Rev.\ D {\bf 99}
(2019), 044039], it is shown that a hollow transmissive shell collapsing to an
ultracompact object of radius very close to its horizon radius generally emits
transient Hawking radiation followed by a couple of bursts separated each other
by a... | [
{
"created": "Mon, 20 May 2019 10:39:57 GMT",
"version": "v1"
},
{
"created": "Tue, 28 May 2019 00:28:11 GMT",
"version": "v2"
}
] | 2019-10-23 | [
[
"Kokubu",
"Takafumi",
""
],
[
"Harada",
"Tomohiro",
""
]
] | In the previous paper [Harada, Cardoso, and Miyata, Phys.\ Rev.\ D {\bf 99} (2019), 044039], it is shown that a hollow transmissive shell collapsing to an ultracompact object of radius very close to its horizon radius generally emits transient Hawking radiation followed by a couple of bursts separated each other by a l... |
1911.02693 | Feroz Shaik | Feroz H. Shaik, Jacob Lange, Scott E. Field, Richard O'Shaughnessy,
Vijay Varma, Lawrence E. Kidder, Harald P. Pfeiffer, and Daniel Wysocki | Impact of subdominant modes on the interpretation of gravitational-wave
signals from heavy binary black hole systems | 24 pages, 12 figures, 1 table; version 2 contains additional material
including a comparison to previous works and measuring individual black hole
spins | Phys. Rev. D 101, 124054 (2020) | 10.1103/PhysRevD.101.124054 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Over the past year, a handful of new gravitational wave models have been
developed to include multiple harmonic modes thereby enabling for the first
time fully Bayesian inference studies including higher modes to be performed.
Using one recently-developed numerical relativity surrogate model,
NRHybSur3dq8, we investi... | [
{
"created": "Thu, 7 Nov 2019 00:56:05 GMT",
"version": "v1"
},
{
"created": "Tue, 23 Jun 2020 19:33:22 GMT",
"version": "v2"
}
] | 2020-07-01 | [
[
"Shaik",
"Feroz H.",
""
],
[
"Lange",
"Jacob",
""
],
[
"Field",
"Scott E.",
""
],
[
"O'Shaughnessy",
"Richard",
""
],
[
"Varma",
"Vijay",
""
],
[
"Kidder",
"Lawrence E.",
""
],
[
"Pfeiffer",
"Harald P.",
""... | Over the past year, a handful of new gravitational wave models have been developed to include multiple harmonic modes thereby enabling for the first time fully Bayesian inference studies including higher modes to be performed. Using one recently-developed numerical relativity surrogate model, NRHybSur3dq8, we investiga... |
2006.11289 | Saeed Ullah Khan | Saeed Ullah Khan and Jingli Ren | Shadow cast by a rotating charged black hole in quintessential dark
energy | 11 Pages, 7 figures, Matches published version | Phys. Dark Universe (2020) | 10.1016/j.dark.2020.100644 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The existence of quintessential dark energy around a black hole has
considerable consequences on its spacetime geometry. Hence, in this article, we
explore its effect on horizons and the silhouette generated by a Kerr-Newman
black hole in quintessential dark energy. Moreover, to analyze the deflection
angle of light,... | [
{
"created": "Sat, 20 Jun 2020 16:05:50 GMT",
"version": "v1"
}
] | 2020-06-23 | [
[
"Khan",
"Saeed Ullah",
""
],
[
"Ren",
"Jingli",
""
]
] | The existence of quintessential dark energy around a black hole has considerable consequences on its spacetime geometry. Hence, in this article, we explore its effect on horizons and the silhouette generated by a Kerr-Newman black hole in quintessential dark energy. Moreover, to analyze the deflection angle of light, w... |
2310.17339 | D\'ebora Aguiar Gomes | D\'ebora Aguiar Gomes, Rebecca Briffa, Aleksander Kozak, Jackson Levi
Said, Margus Saal and Aneta Wojnar | Cosmological constraints of Palatini $f(\mathcal{R})$ gravity | 19 pages, 3 figures | JCAP01(2024)011 | 10.1088/1475-7516/2024/01/011 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this study, we investigate a Palatini $f(R)$ gravity model featuring a
quadratic term correction, aligning it with the most recent expansion rate
data, with a particular focus on the latest SNIa and BAO data. Our analysis
employs CC data as the fundamental dataset, complemented by contributions from
the SN sample ... | [
{
"created": "Thu, 26 Oct 2023 12:10:21 GMT",
"version": "v1"
}
] | 2024-01-10 | [
[
"Gomes",
"Débora Aguiar",
""
],
[
"Briffa",
"Rebecca",
""
],
[
"Kozak",
"Aleksander",
""
],
[
"Said",
"Jackson Levi",
""
],
[
"Saal",
"Margus",
""
],
[
"Wojnar",
"Aneta",
""
]
] | In this study, we investigate a Palatini $f(R)$ gravity model featuring a quadratic term correction, aligning it with the most recent expansion rate data, with a particular focus on the latest SNIa and BAO data. Our analysis employs CC data as the fundamental dataset, complemented by contributions from the SN sample an... |
1402.0657 | Peter Horvathy | C. Duval, G. W. Gibbons, P. A. Horvathy, P. M. Zhang | Carroll versus Newton and Galilei: two dual non-Einsteinian concepts of
time | 32 pages, no figures. A minor error corrected. Accepted for
publication in Classical and Quantum Gravity | null | 10.1088/0264-9381/31/8/085016 | null | gr-qc hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The Carroll group was originally introduced by Levy-Leblond [1] by
considering the limit of the Poincar\'e group as $c\to0$. In this paper an
alternative definition, based on the geometric properties of a non-Minkowskian,
non-Galilean but nevertheless boost-invariant, space-time structure is
proposed. A "duality" wit... | [
{
"created": "Tue, 4 Feb 2014 08:43:18 GMT",
"version": "v1"
},
{
"created": "Fri, 7 Feb 2014 09:26:12 GMT",
"version": "v2"
},
{
"created": "Tue, 25 Feb 2014 02:51:20 GMT",
"version": "v3"
},
{
"created": "Wed, 26 Feb 2014 01:33:22 GMT",
"version": "v4"
},
{
"cre... | 2015-06-18 | [
[
"Duval",
"C.",
""
],
[
"Gibbons",
"G. W.",
""
],
[
"Horvathy",
"P. A.",
""
],
[
"Zhang",
"P. M.",
""
]
] | The Carroll group was originally introduced by Levy-Leblond [1] by considering the limit of the Poincar\'e group as $c\to0$. In this paper an alternative definition, based on the geometric properties of a non-Minkowskian, non-Galilean but nevertheless boost-invariant, space-time structure is proposed. A "duality" with ... |
1307.2552 | Lijing Shao | Lijing Shao, R. Nicolas Caballero, Michael Kramer, Norbert Wex, David
J. Champion, Axel Jessner | A new limit on local Lorentz invariance violation of gravity from
solitary pulsars | 25 pages, 9 figures; accepted by Classical and Quantum Gravity | Class. Quantum Grav. 30 (2013) 165019 | 10.1088/0264-9381/30/16/165019 | null | gr-qc astro-ph.CO astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Gravitational preferred frame effects are generally predicted by alternative
theories that exhibit an isotropic violation of local Lorentz invariance of
gravity. They are described by three parameters in the parametrized
post-Newtonian formalism. One of their strong-field generalizations, $\hat
\alpha_2$, induces a p... | [
{
"created": "Tue, 9 Jul 2013 19:29:41 GMT",
"version": "v1"
}
] | 2013-07-29 | [
[
"Shao",
"Lijing",
""
],
[
"Caballero",
"R. Nicolas",
""
],
[
"Kramer",
"Michael",
""
],
[
"Wex",
"Norbert",
""
],
[
"Champion",
"David J.",
""
],
[
"Jessner",
"Axel",
""
]
] | Gravitational preferred frame effects are generally predicted by alternative theories that exhibit an isotropic violation of local Lorentz invariance of gravity. They are described by three parameters in the parametrized post-Newtonian formalism. One of their strong-field generalizations, $\hat \alpha_2$, induces a pre... |
1604.02448 | Mehdi Saravani | Mehdi Saravani and Niayesh Afshordi | Off-shell Dark Matter: A Cosmological relic of Quantum Gravity | null | Phys. Rev. D 95, 043514 (2017) | 10.1103/PhysRevD.95.043514 | null | gr-qc astro-ph.HE hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study a novel proposal for the origin of cosmological cold dark matter
(CDM) which is rooted in the quantum nature of spacetime. In this model,
off-shell modes of quantum fields can exist in asymptotic states as a result of
spacetime nonlocality (expected in generic theories of quantum gravity), and
play the role ... | [
{
"created": "Fri, 8 Apr 2016 19:59:42 GMT",
"version": "v1"
}
] | 2017-02-22 | [
[
"Saravani",
"Mehdi",
""
],
[
"Afshordi",
"Niayesh",
""
]
] | We study a novel proposal for the origin of cosmological cold dark matter (CDM) which is rooted in the quantum nature of spacetime. In this model, off-shell modes of quantum fields can exist in asymptotic states as a result of spacetime nonlocality (expected in generic theories of quantum gravity), and play the role of... |
1905.06615 | Oleg Tsupko | Gennady S. Bisnovatyi-Kogan and Oleg Yu. Tsupko | Gravitational Lensing in presence of Plasma: Strong Lens Systems, Black
Hole Lensing and Shadow | Invited Review for Special Issue "Gravitational Lensing and
Astrometry" of Universe (published in 2017); partially based on our previous
papers arXiv:0809.1021, arXiv:1006.2321, arXiv:1305.7032, arXiv:1505.06481,
arXiv:1507.04217, arXiv:1702.08768; see also other review arXiv:1507.08545 | Universe 2017, 3, 57 | 10.3390/universe3030057 | null | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this article, we present an overview of the new developments in problems
of the plasma influence on the effects of gravitational lensing, complemented
by pieces of new material and relevant discussions. Deflection of light in the
presence of gravity and plasma is determined by a complex combination of
various phys... | [
{
"created": "Thu, 16 May 2019 09:36:39 GMT",
"version": "v1"
}
] | 2019-05-17 | [
[
"Bisnovatyi-Kogan",
"Gennady S.",
""
],
[
"Tsupko",
"Oleg Yu.",
""
]
] | In this article, we present an overview of the new developments in problems of the plasma influence on the effects of gravitational lensing, complemented by pieces of new material and relevant discussions. Deflection of light in the presence of gravity and plasma is determined by a complex combination of various physic... |
0712.4405 | Steven Detweiler | Ian Vega, Steven Detweiler | Regularization of fields for self-force problems in curved spacetime:
foundations and a time-domain application | 15 pages, 12 figures, 1 table. More figures, extended summary | Phys.Rev.D77:084008,2008 | 10.1103/PhysRevD.77.084008 | null | gr-qc | null | We propose an approach for the calculation of self-forces, energy fluxes and
waveforms arising from moving point charges in curved spacetimes. As opposed to
mode-sum schemes that regularize the self-force derived from the singular
retarded field, this approach regularizes the retarded field itself. The
singular part ... | [
{
"created": "Fri, 28 Dec 2007 20:59:22 GMT",
"version": "v1"
},
{
"created": "Tue, 15 Jan 2008 14:51:35 GMT",
"version": "v2"
}
] | 2010-05-12 | [
[
"Vega",
"Ian",
""
],
[
"Detweiler",
"Steven",
""
]
] | We propose an approach for the calculation of self-forces, energy fluxes and waveforms arising from moving point charges in curved spacetimes. As opposed to mode-sum schemes that regularize the self-force derived from the singular retarded field, this approach regularizes the retarded field itself. The singular part of... |
0707.2982 | Michele Vallisneri | Curt Cutler and Michele Vallisneri | LISA detections of massive black hole inspirals: parameter extraction
errors due to inaccurate template waveforms | RevTeX4, 16 pages, 2 EPS figures. Corrected typos, clarified
statements | Phys.Rev.D76:104018,2007 | 10.1103/PhysRevD.76.104018 | null | gr-qc | null | The planned Laser Interferometer Space Antenna (LISA) is expected to detect
the inspiral and merger of massive black hole binaries (MBHBs) at z <~ 5 with
signal-to-noise ratios (SNRs) of hundreds to thousands. Because of these high
SNRs, and because these SNRs accrete over periods of weeks to months, it should
be pos... | [
{
"created": "Fri, 20 Jul 2007 00:37:23 GMT",
"version": "v1"
},
{
"created": "Wed, 5 Sep 2007 19:38:44 GMT",
"version": "v2"
}
] | 2008-11-26 | [
[
"Cutler",
"Curt",
""
],
[
"Vallisneri",
"Michele",
""
]
] | The planned Laser Interferometer Space Antenna (LISA) is expected to detect the inspiral and merger of massive black hole binaries (MBHBs) at z <~ 5 with signal-to-noise ratios (SNRs) of hundreds to thousands. Because of these high SNRs, and because these SNRs accrete over periods of weeks to months, it should be possi... |
1907.05863 | D. Jaffino Stargen | D. Jaffino Stargen, S. Shankaranarayanan, and Saurya Das | Polymer quantization and advanced gravitational wave detector | v1: 12 pages, 4 figures; v2: 13 pages, 4 figures; Accepted in Phys.
Rev. D | Phys. Rev. D 100, 086007 (2019) | 10.1103/PhysRevD.100.086007 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate the observable consequences of Planck scale effects in the
advanced gravitational wave detector by polymer quantizing the optical field in
the arms of the interferometer. We construct a new set of polymer-modified
creation and annihilation operators to quantize the optical field. Employing
these polyme... | [
{
"created": "Fri, 12 Jul 2019 17:31:18 GMT",
"version": "v1"
},
{
"created": "Tue, 24 Sep 2019 04:55:43 GMT",
"version": "v2"
}
] | 2019-10-18 | [
[
"Stargen",
"D. Jaffino",
""
],
[
"Shankaranarayanan",
"S.",
""
],
[
"Das",
"Saurya",
""
]
] | We investigate the observable consequences of Planck scale effects in the advanced gravitational wave detector by polymer quantizing the optical field in the arms of the interferometer. We construct a new set of polymer-modified creation and annihilation operators to quantize the optical field. Employing these polymer-... |
2003.04416 | Vittorio De Falco Dr | Vittorio De Falco, Emmanuele Battista | Poynting-Robertson effect as a dissipative system in general relativity | 13 pages, 3 figures; Accepted on Physical Review D. Much of this work
appeared previously as arXiv:1911.03197, which remains un-published | null | 10.1103/PhysRevD.101.064040 | null | gr-qc astro-ph.HE hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We determine for the first time in the literature the analytic form of the
Rayleigh potential of the general relativistic Poynting-Robertson effect. The
employed procedure is based on the use of an integrating factor and a new
integration strategy where the test particle's dissipated energy represents the
fundamental... | [
{
"created": "Mon, 9 Mar 2020 21:12:23 GMT",
"version": "v1"
}
] | 2020-03-20 | [
[
"De Falco",
"Vittorio",
""
],
[
"Battista",
"Emmanuele",
""
]
] | We determine for the first time in the literature the analytic form of the Rayleigh potential of the general relativistic Poynting-Robertson effect. The employed procedure is based on the use of an integrating factor and a new integration strategy where the test particle's dissipated energy represents the fundamental v... |
2008.08689 | M. B. Paranjape | M. B. Paranjape | You can see a clock running backwards in time | 9 pages, 2 figures, 2020 Gravity Research Foundation Essay
Competition Honourable Mention | null | 10.1142/S0218271820430166 | UdeM-GPP-TH-20-282 | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The epitome of acausal or anti-chronological behaviour would be to see a
clock running backwards in time. In this essay we point out that this is indeed
possible, but there is no problem with causality. What you see isn't what is
really happening. Locally, causality is always respected. However our
observation should... | [
{
"created": "Wed, 19 Aug 2020 22:23:03 GMT",
"version": "v1"
}
] | 2021-02-03 | [
[
"Paranjape",
"M. B.",
""
]
] | The epitome of acausal or anti-chronological behaviour would be to see a clock running backwards in time. In this essay we point out that this is indeed possible, but there is no problem with causality. What you see isn't what is really happening. Locally, causality is always respected. However our observation should b... |
1810.07388 | Parthapratim Pradhan | Parthapratim Pradhan | Extended Phase Space Thermodynamics of Black Holes in Massive Gravity | Accepted for publication in Modern Physics Letters A (MPLA) | Modern Physics Letters AVol. 34, No. 09, 1950063 (2019) | 10.1142/S0217732319500639 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the extended phase space thermodynamics of black holes in massive
gravity. Particularly, we examine the critical behaviour of this black hole
using the extended phase space formalism. Extended phase space in a sense that
in which the cosmological constant should be treated as a thermodynamic
pressure and its... | [
{
"created": "Wed, 17 Oct 2018 05:22:55 GMT",
"version": "v1"
},
{
"created": "Wed, 26 Dec 2018 05:09:07 GMT",
"version": "v2"
}
] | 2019-04-15 | [
[
"Pradhan",
"Parthapratim",
""
]
] | We study the extended phase space thermodynamics of black holes in massive gravity. Particularly, we examine the critical behaviour of this black hole using the extended phase space formalism. Extended phase space in a sense that in which the cosmological constant should be treated as a thermodynamic pressure and its c... |
1008.3345 | Sabine Hossenfelder | Xavier Calmet, Sabine Hossenfelder, Roberto Percacci | Deformed Special Relativity from Asymptotically Safe Gravity | replaced with published version | Phys.Rev.D82:124024,2010 | 10.1103/PhysRevD.82.124024 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | By studying the notion of a fundamentally minimal length scale in
asymptotically safe gravity we find that a specific version of deformed special
relativity (DSR) naturally arises in this approach. We then consider two
thought experiments to examine the interpretation of the scenario and discuss
similarities and diff... | [
{
"created": "Thu, 19 Aug 2010 16:31:53 GMT",
"version": "v1"
},
{
"created": "Mon, 20 Dec 2010 14:18:18 GMT",
"version": "v2"
}
] | 2010-12-23 | [
[
"Calmet",
"Xavier",
""
],
[
"Hossenfelder",
"Sabine",
""
],
[
"Percacci",
"Roberto",
""
]
] | By studying the notion of a fundamentally minimal length scale in asymptotically safe gravity we find that a specific version of deformed special relativity (DSR) naturally arises in this approach. We then consider two thought experiments to examine the interpretation of the scenario and discuss similarities and differ... |
gr-qc/0510068 | Marc-Thierry Jaekel | Marc-Thierry Jaekel and Serge Reynaud | Post-Einsteinian tests of gravitation | 19 pages Corrected typos | Class. Quantum Grav. 23 (2006) 777-798 | 10.1088/0264-9381/23/3/015 | LPTENS-05/34 | gr-qc | null | Einstein gravitation theory can be extended by preserving its geometrical
nature but changing the relation between curvature and energy-momentum tensors.
This change accounts for radiative corrections, replacing the Newton
gravitation constant by two running couplings which depend on scale and differ
in the two secto... | [
{
"created": "Fri, 14 Oct 2005 06:39:32 GMT",
"version": "v1"
},
{
"created": "Fri, 4 Nov 2005 16:46:32 GMT",
"version": "v2"
}
] | 2007-05-23 | [
[
"Jaekel",
"Marc-Thierry",
""
],
[
"Reynaud",
"Serge",
""
]
] | Einstein gravitation theory can be extended by preserving its geometrical nature but changing the relation between curvature and energy-momentum tensors. This change accounts for radiative corrections, replacing the Newton gravitation constant by two running couplings which depend on scale and differ in the two sectors... |
1011.4618 | Adriano Contillo | Adriano Contillo | Evolution of cosmological perturbations in an RG-driven inflationary
scenario | 18 pages; improved discussion and references added; fitted to match
published version | Phys.Rev.D83:085016,2011 | 10.1103/PhysRevD.83.085016 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A gauge-invariant, linear cosmological perturbation theory of an almost
homogeneous and isotropic universe with dynamically evolving Newton constant G
and cosmological constant $\Lambda$ is presented. The equations governing the
evolution of the comoving fractional spatial gradients of the matter density, G
and $\Lam... | [
{
"created": "Sat, 20 Nov 2010 22:45:03 GMT",
"version": "v1"
},
{
"created": "Wed, 13 Apr 2011 08:49:50 GMT",
"version": "v2"
}
] | 2011-04-22 | [
[
"Contillo",
"Adriano",
""
]
] | A gauge-invariant, linear cosmological perturbation theory of an almost homogeneous and isotropic universe with dynamically evolving Newton constant G and cosmological constant $\Lambda$ is presented. The equations governing the evolution of the comoving fractional spatial gradients of the matter density, G and $\Lambd... |
1105.1213 | Xiao Zhang | Zhuobin Liang and Xiao Zhang | Spacelike hypersurfaces with negative total energy in de Sitter
spacetime | 11 pages, final version, to appear in J. Math. Phys | null | 10.1063/1.3682242 | null | gr-qc hep-th math.DG | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | De Sitter spacetime can be separated into two parts along two kinds of
hypersurfaces and the half-de Sitter spacetimes are covered by the planar and
hyperbolic coordinates respectively. Two positive energy theorems were proved
previously for certain $\P$-asymptotically de Sitter and $\H$-asymptotically de
Sitter init... | [
{
"created": "Fri, 6 May 2011 02:26:15 GMT",
"version": "v1"
},
{
"created": "Thu, 19 Jan 2012 12:18:59 GMT",
"version": "v2"
}
] | 2015-05-28 | [
[
"Liang",
"Zhuobin",
""
],
[
"Zhang",
"Xiao",
""
]
] | De Sitter spacetime can be separated into two parts along two kinds of hypersurfaces and the half-de Sitter spacetimes are covered by the planar and hyperbolic coordinates respectively. Two positive energy theorems were proved previously for certain $\P$-asymptotically de Sitter and $\H$-asymptotically de Sitter initia... |
1010.2481 | Sean Gryb B | Henrique Gomes, Sean Gryb and Tim Koslowski | Einstein gravity as a 3D conformally invariant theory | 27 pages. Published version (minor changes and corrections) | Class.Quant.Grav.28:045005,2011 | 10.1088/0264-9381/28/4/045005 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We give an alternative description of the physical content of general
relativity that does not require a Lorentz invariant spacetime. Instead, we
find that gravity admits a dual description in terms of a theory where local
size is irrelevant. The dual theory is invariant under foliation preserving
3-diffeomorphisms a... | [
{
"created": "Tue, 12 Oct 2010 19:40:08 GMT",
"version": "v1"
},
{
"created": "Mon, 28 Mar 2011 22:45:09 GMT",
"version": "v2"
}
] | 2011-03-30 | [
[
"Gomes",
"Henrique",
""
],
[
"Gryb",
"Sean",
""
],
[
"Koslowski",
"Tim",
""
]
] | We give an alternative description of the physical content of general relativity that does not require a Lorentz invariant spacetime. Instead, we find that gravity admits a dual description in terms of a theory where local size is irrelevant. The dual theory is invariant under foliation preserving 3-diffeomorphisms and... |
2306.04373 | Marion Pillas | M. Pillas, T. Dal Canton, C. Stachie, B. Piotrzkowski, F. Hayes, R.
Hamburg, E. Burns, J. Wood, P. A. Duverne, N. Christensen | Deep Multimessenger Search for Compact Binary Mergers in LIGO, Virgo,
and Fermi/GBM Data from 2016-2017 | 22 pages, 16 figures | ApJ 956 56 (2023) | 10.3847/1538-4357/acf458 | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | GW170817-GRB 170817A provided the first observation of gravitational waves
from a neutron star merger with associated transient counterparts across the
entire electromagnetic spectrum. This discovery demonstrated the
long-hypothesized association between short gamma-ray bursts and neutron star
mergers. More joint det... | [
{
"created": "Wed, 7 Jun 2023 12:13:20 GMT",
"version": "v1"
},
{
"created": "Fri, 20 Oct 2023 14:33:42 GMT",
"version": "v2"
},
{
"created": "Wed, 6 Mar 2024 08:04:53 GMT",
"version": "v3"
}
] | 2024-03-07 | [
[
"Pillas",
"M.",
""
],
[
"Canton",
"T. Dal",
""
],
[
"Stachie",
"C.",
""
],
[
"Piotrzkowski",
"B.",
""
],
[
"Hayes",
"F.",
""
],
[
"Hamburg",
"R.",
""
],
[
"Burns",
"E.",
""
],
[
"Wood",
"J.",
... | GW170817-GRB 170817A provided the first observation of gravitational waves from a neutron star merger with associated transient counterparts across the entire electromagnetic spectrum. This discovery demonstrated the long-hypothesized association between short gamma-ray bursts and neutron star mergers. More joint detec... |
gr-qc/0007026 | Vladimir Kassandrov | V.V.Kassandrov, V.N.Trishin | "Particle-like" singular solutions in Einstein-Maxwell theory and in
algebraic dynamics | 10 pages, 2 figures, 10th Russian gravitation conference, Vladimir,
1999 | Grav.Cosmol.5:272-276,1999 | null | null | gr-qc | null | Foundations of algebrodynamics based on earlier proposed equations of
biquaternionic holomorphy are briefly expounded. Free Maxwell and Yang-Mills
Eqs. are satisfied identically on the solutions of primary system which is also
related to the Eqs. of shear-free null congruences (SFC), and through them - to
the Einstei... | [
{
"created": "Thu, 13 Jul 2000 15:31:04 GMT",
"version": "v1"
}
] | 2014-11-17 | [
[
"Kassandrov",
"V. V.",
""
],
[
"Trishin",
"V. N.",
""
]
] | Foundations of algebrodynamics based on earlier proposed equations of biquaternionic holomorphy are briefly expounded. Free Maxwell and Yang-Mills Eqs. are satisfied identically on the solutions of primary system which is also related to the Eqs. of shear-free null congruences (SFC), and through them - to the Einstein-... |
2105.00253 | Hiroki Takeda | Hiroki Takeda, Soichiro Morisaki, and Atsushi Nishizawa | Scalar-tensor mixed polarization search of gravitational waves | 6 pages, 3 figures | null | 10.1103/PhysRevD.105.084019 | LIGO-P2100137 | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | An additional scalar degree of freedom for a gravitational wave is often
predicted in theories of gravity beyond general relativity and can be used for
a model-agnostic test of gravity. In this letter, we report the direct search
for the scalar-tensor mixed polarization modes of gravitational waves from
compact binar... | [
{
"created": "Sat, 1 May 2021 14:06:24 GMT",
"version": "v1"
},
{
"created": "Wed, 8 Dec 2021 10:07:54 GMT",
"version": "v2"
}
] | 2022-04-27 | [
[
"Takeda",
"Hiroki",
""
],
[
"Morisaki",
"Soichiro",
""
],
[
"Nishizawa",
"Atsushi",
""
]
] | An additional scalar degree of freedom for a gravitational wave is often predicted in theories of gravity beyond general relativity and can be used for a model-agnostic test of gravity. In this letter, we report the direct search for the scalar-tensor mixed polarization modes of gravitational waves from compact binarie... |
gr-qc/9305015 | null | Donald Marolf | An illustration of 2+1 gravity loop transform troubles | 6 pages, latex, SU-GP-93/3-4 | null | null | null | gr-qc | null | A nonperturbative approach to quantum gravity that has generated much
discussion is the attempt to construct a ``loop representation." Despite it's
success in linear quantum theories and a part of 2+1 quantum gravity, it has
recently been noticed that difficulties arise with loop representations in a
different ``sect... | [
{
"created": "Tue, 18 May 1993 16:57:00 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Marolf",
"Donald",
""
]
] | A nonperturbative approach to quantum gravity that has generated much discussion is the attempt to construct a ``loop representation." Despite it's success in linear quantum theories and a part of 2+1 quantum gravity, it has recently been noticed that difficulties arise with loop representations in a different ``sector... |
0804.4816 | Craig Robinson Dr | C.A.K. Robinson, B.S. Sathyaprakash, Anand S. Sengupta | A geometric algorithm for efficient coincident detection of
gravitational waves | 25 pages, 2 figures | Phys.Rev.D78:062002,2008 | 10.1103/PhysRevD.78.062002 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Data from a network of gravitational wave detectors can be analyzed in
coincidence to increase detection confidence and reduce non-stationarity of the
background. We propose and explore a geometric algorithm to combine the data
from a network of detectors. The algorithm makes optimal use of the variances
and covarian... | [
{
"created": "Wed, 30 Apr 2008 13:41:50 GMT",
"version": "v1"
}
] | 2009-02-20 | [
[
"Robinson",
"C. A. K.",
""
],
[
"Sathyaprakash",
"B. S.",
""
],
[
"Sengupta",
"Anand S.",
""
]
] | Data from a network of gravitational wave detectors can be analyzed in coincidence to increase detection confidence and reduce non-stationarity of the background. We propose and explore a geometric algorithm to combine the data from a network of detectors. The algorithm makes optimal use of the variances and covariance... |
1102.5096 | Piero Nicolini | Robert B. Mann and Piero Nicolini | Cosmological production of noncommutative black holes | 13 pages, 10 figures, version matching that published on PRD | Phys.Rev.D84:064014,2011 | 10.1103/PhysRevD.84.064014 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate the pair creation of noncommutative black holes in a
background with positive cosmological constant. As a first step we derive the
noncommutative geometry inspired Schwarzschild deSitter solution. By varying
the mass and the cosmological constant parameters, we find several spacetimes
compatible with t... | [
{
"created": "Thu, 24 Feb 2011 21:00:05 GMT",
"version": "v1"
},
{
"created": "Tue, 13 Sep 2011 15:46:03 GMT",
"version": "v2"
}
] | 2011-09-14 | [
[
"Mann",
"Robert B.",
""
],
[
"Nicolini",
"Piero",
""
]
] | We investigate the pair creation of noncommutative black holes in a background with positive cosmological constant. As a first step we derive the noncommutative geometry inspired Schwarzschild deSitter solution. By varying the mass and the cosmological constant parameters, we find several spacetimes compatible with the... |
1512.08682 | Hakan Cebeci | Hakan Cebeci, N\"ulifer \"Ozdemir, Se\c{c}il \c{S}entorun | Motion of the charged test particles in Kerr-Newman-Taub-NUT spacetime
and analytical solutions | 42 pages, improved version, to appear in PRD | Phys. Rev. D 93, 104031 (2016) | 10.1103/PhysRevD.93.104031 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this work, we study the motion of charged test particles in
Kerr-Newman-Taub-NUT spacetime. We analyze the angular and the radial parts of
the orbit equations and examine the possible orbit types. We also investigate
the spherical orbits and their stabilities. Furthermore, we obtain the
analytical solutions of the... | [
{
"created": "Tue, 29 Dec 2015 13:44:15 GMT",
"version": "v1"
},
{
"created": "Mon, 9 May 2016 14:32:57 GMT",
"version": "v2"
}
] | 2016-05-25 | [
[
"Cebeci",
"Hakan",
""
],
[
"Özdemir",
"Nülifer",
""
],
[
"Şentorun",
"Seçil",
""
]
] | In this work, we study the motion of charged test particles in Kerr-Newman-Taub-NUT spacetime. We analyze the angular and the radial parts of the orbit equations and examine the possible orbit types. We also investigate the spherical orbits and their stabilities. Furthermore, we obtain the analytical solutions of the e... |
gr-qc/0410041 | Rituparno Goswami | Rituparno Goswami, Pankaj S. Joshi, Cenalo Vaz, Louis Witten | A Time-Like Naked Singularity | 4 pages, Revtex4, To appear in Physical Review D | Phys.Rev. D70 (2004) 084038 | 10.1103/PhysRevD.70.084038 | null | gr-qc | null | We construct a class of spherically symmetric collapse models in which a
naked singularity may develop as the end state of collapse. The matter
distribution considered has negative radial and tangential pressures, but the
weak energy condition is obeyed throughout. The singularity forms at the center
of the collapsin... | [
{
"created": "Fri, 8 Oct 2004 17:48:39 GMT",
"version": "v1"
}
] | 2009-11-10 | [
[
"Goswami",
"Rituparno",
""
],
[
"Joshi",
"Pankaj S.",
""
],
[
"Vaz",
"Cenalo",
""
],
[
"Witten",
"Louis",
""
]
] | We construct a class of spherically symmetric collapse models in which a naked singularity may develop as the end state of collapse. The matter distribution considered has negative radial and tangential pressures, but the weak energy condition is obeyed throughout. The singularity forms at the center of the collapsing ... |
1006.3860 | Mauricio Bellini | Pablo Alejandro Sanchez, Jesus Martin Romero, Mauricio Bellini (Mar
del Plata University & IFIMAR-CONICET) | Analytical treatment of SUSY Quasi-normal modes in a non-rotating
Schwarzschild black hole | Version to be published in European Physical Journal C | Eur.Phys.J.C71:1526,2011 | 10.1140/epjc/s10052-010-1526-9 | null | gr-qc astro-ph.HE hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We use the Fock-Ivanenko formalism to obtain the Dirac equation which
describes the interaction of a massless 1/2-spin neutral fermion with a
gravitational field around a Schwarzschild black hole (BH). We obtain
approximated analytical solutions for the eigenvalues of the energy
(quasi-normal frequencies) and their c... | [
{
"created": "Sat, 19 Jun 2010 11:46:43 GMT",
"version": "v1"
},
{
"created": "Thu, 19 Aug 2010 15:38:53 GMT",
"version": "v2"
},
{
"created": "Mon, 15 Nov 2010 21:38:54 GMT",
"version": "v3"
},
{
"created": "Wed, 5 Jan 2011 21:55:06 GMT",
"version": "v4"
}
] | 2011-03-03 | [
[
"Sanchez",
"Pablo Alejandro",
"",
"Mar\n del Plata University & IFIMAR-CONICET"
],
[
"Romero",
"Jesus Martin",
"",
"Mar\n del Plata University & IFIMAR-CONICET"
],
[
"Bellini",
"Mauricio",
"",
"Mar\n del Plata University & IFIMAR-CONICET"
]
] | We use the Fock-Ivanenko formalism to obtain the Dirac equation which describes the interaction of a massless 1/2-spin neutral fermion with a gravitational field around a Schwarzschild black hole (BH). We obtain approximated analytical solutions for the eigenvalues of the energy (quasi-normal frequencies) and their cor... |
2302.05070 | Pardyumn Kumar Sahoo | Gaurav N. Gadbail, Simran Arora, P.K. Sahoo | Dark energy constraint on equation of state parameter in the Weyl type
$f(Q,T)$ gravity | Annals of Physics accepted version | Annals of Physics, 451 (2023) 169244 | 10.1016/j.aop.2023.169244 | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | The equation of state parameter is a significant method for characterizing
dark energy models. We investigate the evolution of the equation of state
parameter with redshift using a Bayesian analysis of recent observational
datasets (the Cosmic Chronometer data (CC) and Pantheon samples). The
Chevallier-Polarski-Linde... | [
{
"created": "Fri, 10 Feb 2023 06:01:53 GMT",
"version": "v1"
}
] | 2023-02-15 | [
[
"Gadbail",
"Gaurav N.",
""
],
[
"Arora",
"Simran",
""
],
[
"Sahoo",
"P. K.",
""
]
] | The equation of state parameter is a significant method for characterizing dark energy models. We investigate the evolution of the equation of state parameter with redshift using a Bayesian analysis of recent observational datasets (the Cosmic Chronometer data (CC) and Pantheon samples). The Chevallier-Polarski-Linder ... |
1908.02677 | Hans Oude Groeniger | Hans Oude Groeniger | On Bianchi type VI$_0$ spacetimes with orthogonal perfect fluid matter | 19 pages, 1 figure | Annales Henri Poincare 21 (2020), 3069-3094 | 10.1007/s00023-020-00934-0 | null | gr-qc math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the asymptotic behaviour of Bianchi type VI$_0$ spacetimes with
orthogonal perfect fluid matter satisfying Einstein's equations. In particular,
we prove a conjecture due to Wainwright about the initial singularity of such
spacetimes. Using the expansion-normalized variables of Wainwright-Hsu, we
demonstrate ... | [
{
"created": "Wed, 7 Aug 2019 15:14:28 GMT",
"version": "v1"
},
{
"created": "Fri, 10 Nov 2023 16:19:27 GMT",
"version": "v2"
}
] | 2023-11-13 | [
[
"Groeniger",
"Hans Oude",
""
]
] | We study the asymptotic behaviour of Bianchi type VI$_0$ spacetimes with orthogonal perfect fluid matter satisfying Einstein's equations. In particular, we prove a conjecture due to Wainwright about the initial singularity of such spacetimes. Using the expansion-normalized variables of Wainwright-Hsu, we demonstrate th... |
1404.0562 | Diego S\'aez | Neus Puchades and Diego S\'aez | Relativistic positioning: errors due to uncertainties in the satellite
world lines | 20 pages, 9 figures, published online in Astrophys. Space, Sci | Astrophys. Space Sci. (2014) | 10.1007/s10509-014-1908-9 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Global navigation satellite systems use appropriate satellite constellations
to get the coordinates of an user -close to Earth- in an almost inertial
reference system. We have simulated both GPS and GALILEO constellations.
Uncertainties in the satellite world lines lead to dominant positioning errors.
In this paper, ... | [
{
"created": "Wed, 2 Apr 2014 14:16:08 GMT",
"version": "v1"
}
] | 2014-04-03 | [
[
"Puchades",
"Neus",
""
],
[
"Sáez",
"Diego",
""
]
] | Global navigation satellite systems use appropriate satellite constellations to get the coordinates of an user -close to Earth- in an almost inertial reference system. We have simulated both GPS and GALILEO constellations. Uncertainties in the satellite world lines lead to dominant positioning errors. In this paper, a ... |
gr-qc/0701030 | Hiromi Saida | Hiromi Saida | Black hole evaporation in a heat bath as a nonequilibrium process and
its final fate | null | Class.Quant.Grav. 24 (2007) 691-722 | 10.1088/0264-9381/24/3/012 | null | gr-qc astro-ph hep-th | null | When a black hole evaporates, there arises a net energy flow from black hole
into its outside environment (heat bath). The existence of energy flow means
that the thermodynamic state of the whole system, which consists of the black
hole and the heat bath, is in a nonequilibrium state. Therefore, in order to
study the... | [
{
"created": "Thu, 4 Jan 2007 02:24:37 GMT",
"version": "v1"
},
{
"created": "Thu, 11 Jan 2007 01:30:25 GMT",
"version": "v2"
}
] | 2009-11-13 | [
[
"Saida",
"Hiromi",
""
]
] | When a black hole evaporates, there arises a net energy flow from black hole into its outside environment (heat bath). The existence of energy flow means that the thermodynamic state of the whole system, which consists of the black hole and the heat bath, is in a nonequilibrium state. Therefore, in order to study the d... |
1610.05734 | Mohsen Fathi | Mohsen Fathi, Morteza Mohseni | Gravitational Collapse in Repulsive $R+\mu^4/R$ Gravity | 20 pages, 7 figures | Eur. Phys. J. Plus 131, 360 (2016) | 10.1140/epjp/i2016-16360-7 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper we work out collapsing conditions for a spherical star in the
weak field limit of the $R+\mu^4/R$ gravity and discuss the importance of the
parameter $\mu$ to generate different criteria in the theory. Such criteria are
proved to be resulting in a variety of different fates for the evolution of the
oute... | [
{
"created": "Mon, 17 Oct 2016 06:34:55 GMT",
"version": "v1"
}
] | 2016-10-19 | [
[
"Fathi",
"Mohsen",
""
],
[
"Mohseni",
"Morteza",
""
]
] | In this paper we work out collapsing conditions for a spherical star in the weak field limit of the $R+\mu^4/R$ gravity and discuss the importance of the parameter $\mu$ to generate different criteria in the theory. Such criteria are proved to be resulting in a variety of different fates for the evolution of the outer ... |
gr-qc/9712004 | Plamen Fiziev | P. P. Fiziev | Spinless Matter in Transposed-Equi-Affine Theory of Gravity | 29 pages, latex, no figures. New Section on semiclassical limit of
wave equation added; old references rearranged; new references, remarks,
comments, and acknowledgments added; typos corrected | Gen.Rel.Grav. 30 (1998) 1341-1370 | 10.1023/A:1018800507761 | SU-FzF: 3/97 | gr-qc hep-th | null | We derive and discus the equations of motion for spinless matter:
relativistic spinless scalar fields, particles and fluids in the recently
proposed by A. Saa model of gravity with covariantly constant volume with
respect to the transposed connection in Einstein-Cartan spaces.
A new interpretation of this theory as... | [
{
"created": "Mon, 1 Dec 1997 09:15:01 GMT",
"version": "v1"
},
{
"created": "Mon, 19 Jan 1998 08:38:09 GMT",
"version": "v2"
},
{
"created": "Sat, 16 May 1998 16:09:52 GMT",
"version": "v3"
}
] | 2015-06-25 | [
[
"Fiziev",
"P. P.",
""
]
] | We derive and discus the equations of motion for spinless matter: relativistic spinless scalar fields, particles and fluids in the recently proposed by A. Saa model of gravity with covariantly constant volume with respect to the transposed connection in Einstein-Cartan spaces. A new interpretation of this theory as a t... |
gr-qc/0612193 | Nikodem Poplawski | Nikodem J. Poplawski | Gravitation, electromagnetism and the cosmological constant in purely
affine gravity | 14 pages, extended and combined with gr-qc/0701176; published version | Int.J.Mod.Phys.D18:809-829,2009 | 10.1142/S0218271809014777 | null | gr-qc math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The Eddington Lagrangian in the purely affine formulation of general
relativity generates the Einstein equations with the cosmological constant. The
Ferraris-Kijowski purely affine Lagrangian for the electromagnetic field, which
has the form of the Maxwell Lagrangian with the metric tensor replaced by the
symmetrized... | [
{
"created": "Fri, 29 Dec 2006 20:50:16 GMT",
"version": "v1"
},
{
"created": "Wed, 31 Jan 2007 17:12:07 GMT",
"version": "v2"
},
{
"created": "Fri, 10 Jul 2009 23:55:14 GMT",
"version": "v3"
}
] | 2010-11-02 | [
[
"Poplawski",
"Nikodem J.",
""
]
] | The Eddington Lagrangian in the purely affine formulation of general relativity generates the Einstein equations with the cosmological constant. The Ferraris-Kijowski purely affine Lagrangian for the electromagnetic field, which has the form of the Maxwell Lagrangian with the metric tensor replaced by the symmetrized R... |
gr-qc/9903093 | Juan A. Valiente | J.A. Valiente-Kroon | On Killing vector fields and Newman-Penrose constants | 23 pages, 8 eps figures. Submitted to J. Math. Phys | J.Math.Phys. 41 (2000) 898-923 | null | null | gr-qc | null | Asymptotically flat spacetimes with one Killing vector field are considered.
The Killing equations are solved asymptotically using polyhomogeneous
expansions (i.e. series in powers of 1/r an ln r), and solved order by order.
The solution to the leading terms of these expansions yield the asymptotic form
of the Killin... | [
{
"created": "Thu, 25 Mar 1999 19:32:45 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Valiente-Kroon",
"J. A.",
""
]
] | Asymptotically flat spacetimes with one Killing vector field are considered. The Killing equations are solved asymptotically using polyhomogeneous expansions (i.e. series in powers of 1/r an ln r), and solved order by order. The solution to the leading terms of these expansions yield the asymptotic form of the Killing ... |
0712.1988 | Shahar Hod | Shahar Hod | Bounds on the mass-to-radius ratio for non-compact field configurations | 4 pages | Class.Quant.Grav.24:6019-6024,2007 | 10.1088/0264-9381/24/23/021 | null | gr-qc | null | It is well known that a spherically symmetric compact star whose energy
density decreases monotonically possesses an upper bound on its mass-to-radius
ratio, $2M/R\leq 8/9$. However, field configurations typically will not be
compact. Here we investigate non-compact static configurations whose matter
fields have a sl... | [
{
"created": "Wed, 12 Dec 2007 17:40:54 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Hod",
"Shahar",
""
]
] | It is well known that a spherically symmetric compact star whose energy density decreases monotonically possesses an upper bound on its mass-to-radius ratio, $2M/R\leq 8/9$. However, field configurations typically will not be compact. Here we investigate non-compact static configurations whose matter fields have a slow... |
0810.0006 | Thomas W. Baumgarte | T. W. Baumgarte, Z. B. Etienne, Y. T. Liu, K. Matera, N. \'O
Murchadha, S. L. Shapiro and K. Taniguchi | Equilibrium initial data for moving puncture simulations: The stationary
1+log slicing | 20 pages, 3 figures, published version | Class.Quant.Grav.26:085007,2009 | 10.1088/0264-9381/26/8/085007 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We propose and explore a "stationary 1+log" slicing condition for the
construction of solutions to Einstein's constraint equations. For stationary
spacetimes, these initial data will give a stationary foliation when evolved
with "moving puncture" gauge conditions that are often used in black hole
evolutions. The resu... | [
{
"created": "Tue, 30 Sep 2008 20:01:41 GMT",
"version": "v1"
},
{
"created": "Thu, 1 Oct 2009 21:26:58 GMT",
"version": "v2"
}
] | 2009-10-12 | [
[
"Baumgarte",
"T. W.",
""
],
[
"Etienne",
"Z. B.",
""
],
[
"Liu",
"Y. T.",
""
],
[
"Matera",
"K.",
""
],
[
"Murchadha",
"N. Ó",
""
],
[
"Shapiro",
"S. L.",
""
],
[
"Taniguchi",
"K.",
""
]
] | We propose and explore a "stationary 1+log" slicing condition for the construction of solutions to Einstein's constraint equations. For stationary spacetimes, these initial data will give a stationary foliation when evolved with "moving puncture" gauge conditions that are often used in black hole evolutions. The result... |
gr-qc/9906053 | David Garfinkle | David Garfinkle | Metrics with distributional curvature | 7 pages, Revtex, terminology changed, background material added | Class.Quant.Grav. 16 (1999) 4101-4109 | 10.1088/0264-9381/16/12/324 | null | gr-qc | null | This paper considers metrics whose curvature tensor makes sense as a
distribution. A class of such metrics, the regular metrics, was defined and
studied by Geroch and Traschen. Here, we generalize their definition to form a
wider class: semi-regular metrics. We then examine in detail two metrics that
are semi-regular... | [
{
"created": "Tue, 15 Jun 1999 15:41:12 GMT",
"version": "v1"
},
{
"created": "Thu, 17 Jun 1999 13:15:57 GMT",
"version": "v2"
},
{
"created": "Fri, 18 Jun 1999 12:59:48 GMT",
"version": "v3"
},
{
"created": "Thu, 24 Jun 1999 14:19:27 GMT",
"version": "v4"
},
{
"c... | 2009-10-31 | [
[
"Garfinkle",
"David",
""
]
] | This paper considers metrics whose curvature tensor makes sense as a distribution. A class of such metrics, the regular metrics, was defined and studied by Geroch and Traschen. Here, we generalize their definition to form a wider class: semi-regular metrics. We then examine in detail two metrics that are semi-regular b... |
gr-qc/0205122 | Alessandra Buonanno | Alessandra Buonanno, Yanbei Chen and Michele Vallisneri | Detection template families for gravitational waves from the final
stages of binary--black-hole inspirals: Nonspinning case | 58 pages, 38 EPS figures, final PRD version; small corrections to GW
flux terms as per Blanchet et al., PRD 71, 129902(E)-129904(E) (2005) | Phys.Rev.D67:024016,2003; Erratum-ibid.D74:029903,2006 | 10.1103/PhysRevD.67.024016 10.1103/PhysRevD.74.029903 | null | gr-qc | null | We investigate the problem of detecting gravitational waves from binaries of
nonspinning black holes with masses m = 5--20 Msun, moving on quasicircular
orbits, which are arguably the most promising sources for first-generation
ground-based detectors. We analyze and compare all the currently available
post--Newtonian... | [
{
"created": "Wed, 29 May 2002 18:26:00 GMT",
"version": "v1"
},
{
"created": "Thu, 12 Dec 2002 01:55:31 GMT",
"version": "v2"
},
{
"created": "Wed, 26 Jul 2006 15:25:45 GMT",
"version": "v3"
}
] | 2014-11-17 | [
[
"Buonanno",
"Alessandra",
""
],
[
"Chen",
"Yanbei",
""
],
[
"Vallisneri",
"Michele",
""
]
] | We investigate the problem of detecting gravitational waves from binaries of nonspinning black holes with masses m = 5--20 Msun, moving on quasicircular orbits, which are arguably the most promising sources for first-generation ground-based detectors. We analyze and compare all the currently available post--Newtonian a... |
gr-qc/9711058 | Shin'ji Mukouyama | Shinji Mukohyama | Excitation of a Kaluza-Klein mode by parametric resonance | 36 pages, Latex file, Accepted for publication in Physical Review D | Phys.Rev. D57 (1998) 6191-6205 | 10.1103/PhysRevD.57.6191 | YITP-97-59 | gr-qc astro-ph | null | In this paper we investigate a parametric resonance phenomenon of a
Kaluza-Klein mode in a $D$-dimensional generalized Kaluza-Klein theory. As the
origin of the parametric resonance we consider a small oscillation of a scale
of the compactification around a today's value of it. To make our arguments
definite and for ... | [
{
"created": "Thu, 20 Nov 1997 02:18:13 GMT",
"version": "v1"
},
{
"created": "Mon, 2 Mar 1998 11:05:38 GMT",
"version": "v2"
}
] | 2009-10-30 | [
[
"Mukohyama",
"Shinji",
""
]
] | In this paper we investigate a parametric resonance phenomenon of a Kaluza-Klein mode in a $D$-dimensional generalized Kaluza-Klein theory. As the origin of the parametric resonance we consider a small oscillation of a scale of the compactification around a today's value of it. To make our arguments definite and for si... |
gr-qc/9901085 | Wang Bin | Bin Wang and Ru-Keng Su | Entropy, topology of two-dimensional extreme black holes | 16 pages, Latex, accepted for publication on PRD | Phys.Rev.D59:104006,1999 | 10.1103/PhysRevD.59.104006 | null | gr-qc | null | Through direct thermodynamic calculations we have shown that different
classical entropies of two-dimensional extreme black holes appear due to two
different treatments, namely Hawking's treatment and Zaslavskii's treatment.
Geometrical and topological properties corresponding to these different
treatments are invest... | [
{
"created": "Fri, 29 Jan 1999 11:58:24 GMT",
"version": "v1"
}
] | 2010-11-22 | [
[
"Wang",
"Bin",
""
],
[
"Su",
"Ru-Keng",
""
]
] | Through direct thermodynamic calculations we have shown that different classical entropies of two-dimensional extreme black holes appear due to two different treatments, namely Hawking's treatment and Zaslavskii's treatment. Geometrical and topological properties corresponding to these different treatments are investig... |
2202.04188 | Job Furtado Neto | M. Nilton, J. Furtado, G. Alencar | On the traversability of wormhole solutions in asymptotically safe
gravity | 12 pages, 10 figures. Two figures included. Matches version accepted
in Phys. Rev. D | null | 10.1103/PhysRevD.105.084048 | null | gr-qc hep-th | http://creativecommons.org/licenses/by/4.0/ | In this paper we study the traversability of a wormhole in the context of
Asymptotically Safe Gravity (ASG) for two different cases, namely, the
spherical case and the pseudospherical case. We carried out an analysis in the
throat of the wormhole with an specific choice of the cutoff function $f=\xi
R$. Recently, thi... | [
{
"created": "Tue, 8 Feb 2022 23:06:47 GMT",
"version": "v1"
},
{
"created": "Sat, 2 Apr 2022 16:57:37 GMT",
"version": "v2"
}
] | 2022-04-28 | [
[
"Nilton",
"M.",
""
],
[
"Furtado",
"J.",
""
],
[
"Alencar",
"G.",
""
]
] | In this paper we study the traversability of a wormhole in the context of Asymptotically Safe Gravity (ASG) for two different cases, namely, the spherical case and the pseudospherical case. We carried out an analysis in the throat of the wormhole with an specific choice of the cutoff function $f=\xi R$. Recently, this ... |
1505.05278 | David Brizuela | David Brizuela | A generalization of the Zerilli master variable for a dynamical
spherical spacetime | 14 pages, accepted for publication in Classical and Quantum Gravity | Class. Quant. Grav. 32, 135005 (2015) | 10.1088/0264-9381/32/13/135005 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The evolution of polar perturbations on a spherical background spacetime is
analyzed. The matter content is assumed to be a massless scalar field.This
provides a nontrivial dynamics to the background and the linearized equations
of motion become much more involved than in the vacuum case. The analysis is
performed in... | [
{
"created": "Wed, 20 May 2015 08:28:23 GMT",
"version": "v1"
}
] | 2022-01-28 | [
[
"Brizuela",
"David",
""
]
] | The evolution of polar perturbations on a spherical background spacetime is analyzed. The matter content is assumed to be a massless scalar field.This provides a nontrivial dynamics to the background and the linearized equations of motion become much more involved than in the vacuum case. The analysis is performed in a... |
1005.3310 | Nicolas Yunes | Nicolas Yunes, Richard O'Shaughnessy, Benjamin J. Owen and Stephon
Alexander | Testing gravitational parity violation with coincident gravitational
waves and short gamma-ray bursts | 21 pages, 2 figures, submitted to Phys. Rev. D | Phys.Rev.D82:064017,2010 | 10.1103/PhysRevD.82.064017 | IGC-10/5-2 | gr-qc astro-ph.CO astro-ph.HE hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Gravitational parity violation is a possibility motivated by particle
physics, string theory and loop quantum gravity. One effect of it is amplitude
birefringence of gravitational waves, whereby left and right
circularly-polarized waves propagate at the same speed but with different
amplitude evolution. Here we propo... | [
{
"created": "Tue, 18 May 2010 20:02:00 GMT",
"version": "v1"
}
] | 2011-05-04 | [
[
"Yunes",
"Nicolas",
""
],
[
"O'Shaughnessy",
"Richard",
""
],
[
"Owen",
"Benjamin J.",
""
],
[
"Alexander",
"Stephon",
""
]
] | Gravitational parity violation is a possibility motivated by particle physics, string theory and loop quantum gravity. One effect of it is amplitude birefringence of gravitational waves, whereby left and right circularly-polarized waves propagate at the same speed but with different amplitude evolution. Here we propose... |
0901.2722 | Bruno Giacomazzo | Bruno Giacomazzo, Luciano Rezzolla, Luca Baiotti | Can magnetic fields be detected during the inspiral of binary neutron
stars? | 5 pages, 4 figures. Small changes to text and figures. Matches
version to appear on MNRAS Letters | Mon.Not.Roy.Astron.Soc.399:L164-L168,2009 | 10.1111/j.1745-3933.2009.00745.x | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Using accurate and fully general-relativistic simulations we assess the
effect that magnetic fields have on the gravitational-wave emission produced
during the inspiral and merger of magnetized neutron stars. In particular, we
show that magnetic fields have an impact after the merger, because they are
amplified by a ... | [
{
"created": "Sun, 18 Jan 2009 20:51:31 GMT",
"version": "v1"
},
{
"created": "Mon, 7 Sep 2009 11:29:33 GMT",
"version": "v2"
}
] | 2009-10-12 | [
[
"Giacomazzo",
"Bruno",
""
],
[
"Rezzolla",
"Luciano",
""
],
[
"Baiotti",
"Luca",
""
]
] | Using accurate and fully general-relativistic simulations we assess the effect that magnetic fields have on the gravitational-wave emission produced during the inspiral and merger of magnetized neutron stars. In particular, we show that magnetic fields have an impact after the merger, because they are amplified by a Ke... |
1804.01072 | Thiago R.P. Caram\^es | J. C. Fabris, Thiago R. P. Caram\^es and J. M. Hoff da Silva | Braneworld gravity within non-conservative gravitational theory | 7 pages | Eur. Phys. J. C (2018) 78: 402 | 10.1140/epjc/s10052-018-5891-0 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate the braneworld gravity starting from the non-conservative
gravitational field equations in a five-dimensional bulk. The approach is based
on the Gauss-Codazzi formalism along with the study of the braneworld
consistency conditions. The effective gravitational equations on the brane are
obtained and the... | [
{
"created": "Tue, 3 Apr 2018 17:37:03 GMT",
"version": "v1"
}
] | 2018-05-28 | [
[
"Fabris",
"J. C.",
""
],
[
"Caramês",
"Thiago R. P.",
""
],
[
"da Silva",
"J. M. Hoff",
""
]
] | We investigate the braneworld gravity starting from the non-conservative gravitational field equations in a five-dimensional bulk. The approach is based on the Gauss-Codazzi formalism along with the study of the braneworld consistency conditions. The effective gravitational equations on the brane are obtained and the c... |
2403.03487 | Tousif Islam | Tousif Islam | Study of eccentric binary black hole mergers using numerical relativity
and an inspiral-merger-ringdown model | 22 figures | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the phenomenology of non-spinning eccentric binary black hole (BBH)
mergers using numerical relativity (NR) waveforms and \texttt{EccentricIMR}
waveform model, as presented in Ref. \cite{Hinder:2017sxy} (Hinder, Kidder, and
Pfeiffer, arXiv:1709.02007). This model is formulated by combining an eccentric
inspi... | [
{
"created": "Wed, 6 Mar 2024 06:05:21 GMT",
"version": "v1"
}
] | 2024-03-07 | [
[
"Islam",
"Tousif",
""
]
] | We study the phenomenology of non-spinning eccentric binary black hole (BBH) mergers using numerical relativity (NR) waveforms and \texttt{EccentricIMR} waveform model, as presented in Ref. \cite{Hinder:2017sxy} (Hinder, Kidder, and Pfeiffer, arXiv:1709.02007). This model is formulated by combining an eccentric inspira... |
1906.01899 | Fabio Moretti | Fabio Moretti, Flavio Bombacigno and Giovanni Montani | Gauge invariant formulation of gravitational waves in metric $f(R)$
gravity | 6 pages, no figures. Comments are welcome | Phys. Rev. D 100, 084014 (2019) | 10.1103/PhysRevD.100.084014 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We analyze the gravitational waves propagation in metric $f(R)$ theories of
gravity. In particular, adopting a gauge invariant formalism we clearly
determine the exact propagating degrees of freedom. Then, investigating their
effects on test masses via geodesic deviation equation, we show that the
additional dynamica... | [
{
"created": "Wed, 5 Jun 2019 09:20:13 GMT",
"version": "v1"
},
{
"created": "Wed, 25 Sep 2019 14:37:16 GMT",
"version": "v2"
}
] | 2019-10-11 | [
[
"Moretti",
"Fabio",
""
],
[
"Bombacigno",
"Flavio",
""
],
[
"Montani",
"Giovanni",
""
]
] | We analyze the gravitational waves propagation in metric $f(R)$ theories of gravity. In particular, adopting a gauge invariant formalism we clearly determine the exact propagating degrees of freedom. Then, investigating their effects on test masses via geodesic deviation equation, we show that the additional dynamical ... |
2007.01968 | Cl\'esio Evangelista Mota | Cl\'esio E. Mota, Luis C. N. Santos, Franciele M. da Silva, Guilherme
Grams, Iarley P. Lobo, D\'ebora P. Menezes | Generalized Rastall's gravity and its effects on compact objects | null | null | 10.1142/S0218271822500237 | null | gr-qc astro-ph.HE nucl-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present a generalization of Rastall's gravity in which the conservation
law of the energy-momentum tensor is altered, and as a result, the trace of the
energy-momentum tensor is taken into account together with the Ricci scalar in
the expression for the covariant derivative. Afterwards, we obtain the field
equatio... | [
{
"created": "Fri, 3 Jul 2020 23:39:20 GMT",
"version": "v1"
},
{
"created": "Fri, 16 Oct 2020 13:37:25 GMT",
"version": "v2"
},
{
"created": "Wed, 23 Feb 2022 15:34:48 GMT",
"version": "v3"
}
] | 2022-02-24 | [
[
"Mota",
"Clésio E.",
""
],
[
"Santos",
"Luis C. N.",
""
],
[
"da Silva",
"Franciele M.",
""
],
[
"Grams",
"Guilherme",
""
],
[
"Lobo",
"Iarley P.",
""
],
[
"Menezes",
"Débora P.",
""
]
] | We present a generalization of Rastall's gravity in which the conservation law of the energy-momentum tensor is altered, and as a result, the trace of the energy-momentum tensor is taken into account together with the Ricci scalar in the expression for the covariant derivative. Afterwards, we obtain the field equations... |
gr-qc/0602107 | Elias C. Vagenas | Elias C. Vagenas | Energy distribution in the dyadosphere of a Reissner-Nordstrom black
hole in Moller's prescription | 12 pages, no figure, LaTeX | Mod.Phys.Lett.A21:1947-1956,2006 | 10.1142/S0217732306020482 | null | gr-qc astro-ph hep-th | null | The energy and momentum distributions in the dyadosphere of a
Reissner-Nordstrom black hole are evaluated. The Moller's energy-momentum
complex is employed for this computation. The spacetime under study is modified
due to the effects of vacuum fluctuations in the dyadosphere. Therefore, the
corrected Reissner-Nordst... | [
{
"created": "Sun, 26 Feb 2006 16:29:52 GMT",
"version": "v1"
},
{
"created": "Wed, 22 Mar 2006 19:30:16 GMT",
"version": "v2"
}
] | 2010-11-11 | [
[
"Vagenas",
"Elias C.",
""
]
] | The energy and momentum distributions in the dyadosphere of a Reissner-Nordstrom black hole are evaluated. The Moller's energy-momentum complex is employed for this computation. The spacetime under study is modified due to the effects of vacuum fluctuations in the dyadosphere. Therefore, the corrected Reissner-Nordstro... |
2003.07145 | Johannes Bl\"umlein | J. Bl\"umlein, A. Maier, P. Marquard, and G. Sch\"afer | Testing binary dynamics in gravity at the sixth post-Newtonian level | 13 pages Latex | null | 10.1016/j.physletb.2020.135496 | DESY 20--044, DO--TH 20/02, SAGEX--20--06 | gr-qc astro-ph.SR hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We calculate the motion of binary mass systems in gravity up to the sixth
post--Newtonian order to the $G_N^3$ terms ab initio using momentum expansions
within an effective field theory approach based on Feynman amplitudes in
harmonic coordinates. For these contributions we construct a canonical
transformation to iso... | [
{
"created": "Mon, 16 Mar 2020 12:30:50 GMT",
"version": "v1"
}
] | 2020-07-15 | [
[
"Blümlein",
"J.",
""
],
[
"Maier",
"A.",
""
],
[
"Marquard",
"P.",
""
],
[
"Schäfer",
"G.",
""
]
] | We calculate the motion of binary mass systems in gravity up to the sixth post--Newtonian order to the $G_N^3$ terms ab initio using momentum expansions within an effective field theory approach based on Feynman amplitudes in harmonic coordinates. For these contributions we construct a canonical transformation to isotr... |
2112.15441 | Francesco Sorge | Francesco Sorge | Kerr spacetime in Lema\^itre coordinates | 19 pages, 3 figures | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present a novel formulation of the Kerr spacetime solution, based on the
Lema\^itre coordinates. Such an approach allows one to avoid the coordinate
singularities of the Boyer-Lindquist metric, thus offering the possibility to
explore in some detail the Kerr physics near and beyond the event horizon,
adopting the ... | [
{
"created": "Tue, 28 Dec 2021 11:07:07 GMT",
"version": "v1"
}
] | 2022-01-03 | [
[
"Sorge",
"Francesco",
""
]
] | We present a novel formulation of the Kerr spacetime solution, based on the Lema\^itre coordinates. Such an approach allows one to avoid the coordinate singularities of the Boyer-Lindquist metric, thus offering the possibility to explore in some detail the Kerr physics near and beyond the event horizon, adopting the po... |
2311.00245 | Susanne Schander | Thorsten Lang and Susanne Schander | Gauge Symmetry Breaking Lattice Regularizations and their Continuum
Limit | null | null | null | null | gr-qc hep-lat math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Lattice regularizations are pivotal in the non-perturbative quantization of
gauge field theories. Wilson's proposal to employ group-valued link fields
simplifies the regularization of gauge fields in principal fiber bundles,
preserving gauge symmetry within the discretized lattice theory. Maintaining
gauge symmetry i... | [
{
"created": "Wed, 1 Nov 2023 02:59:25 GMT",
"version": "v1"
}
] | 2023-11-02 | [
[
"Lang",
"Thorsten",
""
],
[
"Schander",
"Susanne",
""
]
] | Lattice regularizations are pivotal in the non-perturbative quantization of gauge field theories. Wilson's proposal to employ group-valued link fields simplifies the regularization of gauge fields in principal fiber bundles, preserving gauge symmetry within the discretized lattice theory. Maintaining gauge symmetry is ... |
1209.0465 | Paolo Pani | Paolo Pani, Vitor Cardoso, Leonardo Gualtieri, Emanuele Berti, Akihiro
Ishibashi | Black-Hole Bombs and Photon-Mass Bounds | 5 pages, 2 figures. References added. Matches published version | null | 10.1103/PhysRevLett.109.131102 | null | gr-qc astro-ph.HE hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Generic extensions of the standard model predict the existence of ultralight
bosonic degrees of freedom. Several ongoing experiments are aimed at detecting
these particles or constraining their mass range. Here we show that massive
vector fields around rotating black holes can give rise to a strong
superradiant insta... | [
{
"created": "Mon, 3 Sep 2012 20:00:10 GMT",
"version": "v1"
},
{
"created": "Fri, 21 Sep 2012 06:43:37 GMT",
"version": "v2"
}
] | 2015-06-11 | [
[
"Pani",
"Paolo",
""
],
[
"Cardoso",
"Vitor",
""
],
[
"Gualtieri",
"Leonardo",
""
],
[
"Berti",
"Emanuele",
""
],
[
"Ishibashi",
"Akihiro",
""
]
] | Generic extensions of the standard model predict the existence of ultralight bosonic degrees of freedom. Several ongoing experiments are aimed at detecting these particles or constraining their mass range. Here we show that massive vector fields around rotating black holes can give rise to a strong superradiant instabi... |
2302.03192 | Yen-Kheng Lim PhD | Ian Khai-Shuen Ng, Wei Zheng Choo, and Yen-Kheng Lim | Model for an electrostatic capacitor in Einstein-Maxwell theory | 17 pages, 3 figures. New section about spherical capacitor is added.
A coordinate-independent notion of capacitance is introduced | null | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A general relativistic model of a parallel-plate electrostatic capacitor is
presented. The spacetime is a solution to the Einstein--Maxwell equations and
involves class of solution previously studied by Vesel\'{y} and \v{Z}ofka
(V\v{Z}). In particular, the parts containing curvature singularities are cut
out and the ... | [
{
"created": "Tue, 7 Feb 2023 01:49:11 GMT",
"version": "v1"
},
{
"created": "Fri, 2 Jun 2023 07:43:26 GMT",
"version": "v2"
}
] | 2023-06-05 | [
[
"Ng",
"Ian Khai-Shuen",
""
],
[
"Choo",
"Wei Zheng",
""
],
[
"Lim",
"Yen-Kheng",
""
]
] | A general relativistic model of a parallel-plate electrostatic capacitor is presented. The spacetime is a solution to the Einstein--Maxwell equations and involves class of solution previously studied by Vesel\'{y} and \v{Z}ofka (V\v{Z}). In particular, the parts containing curvature singularities are cut out and the re... |
2305.15500 | Konstantinos Dialektopoulos F. | Konstantinos F. Dialektopoulos, Purba Mukherjee, Jackson Levi Said,
Jurgen Mifsud | Neural network reconstruction of scalar-tensor cosmology | null | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Neural networks have shown great promise in providing a data-first approach
to exploring new physics. In this work, we use the full implementation of late
time cosmological data to reconstruct a number of scalar-tensor cosmological
models within the context of neural network systems. In this pipeline, we
incorporate ... | [
{
"created": "Wed, 24 May 2023 18:42:25 GMT",
"version": "v1"
}
] | 2023-05-26 | [
[
"Dialektopoulos",
"Konstantinos F.",
""
],
[
"Mukherjee",
"Purba",
""
],
[
"Said",
"Jackson Levi",
""
],
[
"Mifsud",
"Jurgen",
""
]
] | Neural networks have shown great promise in providing a data-first approach to exploring new physics. In this work, we use the full implementation of late time cosmological data to reconstruct a number of scalar-tensor cosmological models within the context of neural network systems. In this pipeline, we incorporate co... |
1007.2852 | Muhammad Sharif | M. Sharif and H. Rizwana Kausar | Gravitational Perfect Fluid Collapse in f(R) Gravity | 17 pages, accepted for publication in Astrophys. Space Sci | Astrophys. Space Sci.331:281-288, 2011 | 10.1007/s10509-010-0426-7 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper, we investigate spherically symmetric perfect fluid
gravitational collapse in metric $f(R)$ gravity. We take non-static spherically
symmetric metric in the interior region and static spherically symmetric metric
in the exterior region of a star. The junction conditions between interior and
exterior spac... | [
{
"created": "Fri, 18 Jun 2010 02:27:48 GMT",
"version": "v1"
}
] | 2011-01-17 | [
[
"Sharif",
"M.",
""
],
[
"Kausar",
"H. Rizwana",
""
]
] | In this paper, we investigate spherically symmetric perfect fluid gravitational collapse in metric $f(R)$ gravity. We take non-static spherically symmetric metric in the interior region and static spherically symmetric metric in the exterior region of a star. The junction conditions between interior and exterior spacet... |
0910.4256 | Fumitoshi Amemiya | Fumitoshi Amemiya, Tatsuhiko Koike | Gauge-invariant construction of quantum cosmology | 8 pages, 7 figures, accepted for publication in Phys. Rev. D | Phys.Rev.D80:103507,2009 | 10.1103/PhysRevD.80.103507 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present and analyze a gauge-invariant quantum theory of the
Friedmann-Robertson-Walker universe with dust. We construct the reduced phase
space spanned by gauge-invariant quantities by using the so-called relational
formalism at the classical level. The reduced phase space thereby obtained can
be quantized in the ... | [
{
"created": "Thu, 22 Oct 2009 18:56:01 GMT",
"version": "v1"
}
] | 2009-11-10 | [
[
"Amemiya",
"Fumitoshi",
""
],
[
"Koike",
"Tatsuhiko",
""
]
] | We present and analyze a gauge-invariant quantum theory of the Friedmann-Robertson-Walker universe with dust. We construct the reduced phase space spanned by gauge-invariant quantities by using the so-called relational formalism at the classical level. The reduced phase space thereby obtained can be quantized in the sa... |
2310.05200 | Tamara Evstafyeva | Tamara Evstafyeva, Roxana Rosca-Mead, Ulrich Sperhake, Bernd Brugmann | Boson stars in massless and massive scalar-tensor gravity | 26 pages, 20 figures, to match version published in PRD (due to the
large number of figures, some panels may appear blank if viewed from the
browser, we recommend downloading the paper and viewing it locally to avoid
these issues) | Phys. Rev. D 108, 104064, 2023 | 10.1103/PhysRevD.108.104064 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study phenomenological features and stability of boson stars in massless
and massive scalar-tensor theory of gravity with Damour-Esposito-Farese
coupling. This coupling between the tensor and scalar sectors of the theory
leads to a phenomenon called spontaneous scalarization, the onset of which we
investigate by n... | [
{
"created": "Sun, 8 Oct 2023 15:15:14 GMT",
"version": "v1"
},
{
"created": "Fri, 26 Jul 2024 14:59:22 GMT",
"version": "v2"
}
] | 2024-07-29 | [
[
"Evstafyeva",
"Tamara",
""
],
[
"Rosca-Mead",
"Roxana",
""
],
[
"Sperhake",
"Ulrich",
""
],
[
"Brugmann",
"Bernd",
""
]
] | We study phenomenological features and stability of boson stars in massless and massive scalar-tensor theory of gravity with Damour-Esposito-Farese coupling. This coupling between the tensor and scalar sectors of the theory leads to a phenomenon called spontaneous scalarization, the onset of which we investigate by num... |
gr-qc/0104058 | Valerio Bozza | V. Bozza, A. Feoli, G. Lambiase, G. Papini, G. Scarpetta | Maximal Acceleration Effects in Kerr Space | 16 pages, 10 figures, to appear on Phys. Lett. A | Phys.Lett. A283 (2001) 53-61 | 10.1016/S0375-9601(01)00230-4 | null | gr-qc | null | We consider a model in which accelerated particles experience line--elements
with maximal acceleration corrections that are introduced by means of
successive approximations. It is shown that approximations higher than the
first need not be considered. The method is then applied to the Kerr metric.
The effective field... | [
{
"created": "Wed, 18 Apr 2001 11:57:52 GMT",
"version": "v1"
}
] | 2009-11-07 | [
[
"Bozza",
"V.",
""
],
[
"Feoli",
"A.",
""
],
[
"Lambiase",
"G.",
""
],
[
"Papini",
"G.",
""
],
[
"Scarpetta",
"G.",
""
]
] | We consider a model in which accelerated particles experience line--elements with maximal acceleration corrections that are introduced by means of successive approximations. It is shown that approximations higher than the first need not be considered. The method is then applied to the Kerr metric. The effective field e... |
gr-qc/0606075 | Alcides Garat | Alcides Garat | Tetrads in low-energy weak interactions | null | Int.J.Mod.Phys. A33 (2018) no.33, 1850197 | 10.1142/S0217751X1850197X | null | gr-qc | null | Tetrads are introduced in order to study the relationship between gravity and
particle interactions, specially in weak processes at low energy. Through
several examples like inverse Muon decay, elastic Neutrino-Electron scattering,
it is explicitly shown how to assign to each vertex of the corresponding
low-order Fey... | [
{
"created": "Fri, 16 Jun 2006 15:34:55 GMT",
"version": "v1"
}
] | 2019-08-22 | [
[
"Garat",
"Alcides",
""
]
] | Tetrads are introduced in order to study the relationship between gravity and particle interactions, specially in weak processes at low energy. Through several examples like inverse Muon decay, elastic Neutrino-Electron scattering, it is explicitly shown how to assign to each vertex of the corresponding low-order Feynm... |
0909.4157 | Carlos Barcelo | C. Barcelo, S. Liberati, S. Sonego and M. Visser | Revisiting the semiclassical gravity scenario for gravitational collapse | 8 pages, proceedings of the ERE2008, aipproc style | Physics and Mathematics of Gravitation, Proceedings of the Spanish
Relativity Meeting (ERE 2008), eds. K.E. Kunze, M. Mars, M.A. Vazquez-Mozo,
pag. 99-106, AIP Conf. Proc. 1122, 2009 | 10.1063/1.3141347 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The existence of extremely dark and compact astronomical bodies is by now a
well established observational fact. On the other hand, classical General
Relativity predicts the existence of black holes which fit very well with the
observations, but do lead to important conceptual problems. In this
contribution we ask ou... | [
{
"created": "Wed, 23 Sep 2009 09:28:28 GMT",
"version": "v1"
}
] | 2015-05-14 | [
[
"Barcelo",
"C.",
""
],
[
"Liberati",
"S.",
""
],
[
"Sonego",
"S.",
""
],
[
"Visser",
"M.",
""
]
] | The existence of extremely dark and compact astronomical bodies is by now a well established observational fact. On the other hand, classical General Relativity predicts the existence of black holes which fit very well with the observations, but do lead to important conceptual problems. In this contribution we ask ours... |
gr-qc/9311001 | Khatsymovsky | V.Khatsymovsky | On quantization of Regge links | 6 pages, Plain LaTeX, Preprint UUITP-23/1993 | Phys.Lett. B323 (1994) 292-295 | 10.1016/0370-2693(94)91222-X | null | gr-qc | null | In quantum Regge calculus areas of timelike triangles possess discrete
spectrum. This is because bivectors of these triangles are variables
canonically conjugate to orthogonal connection matrices varying in the compact
group. (The scale of quantum of this spectrum is nothing but Plankian one).
This is checked in simp... | [
{
"created": "Mon, 1 Nov 1993 10:59:58 GMT",
"version": "v1"
}
] | 2009-10-22 | [
[
"Khatsymovsky",
"V.",
""
]
] | In quantum Regge calculus areas of timelike triangles possess discrete spectrum. This is because bivectors of these triangles are variables canonically conjugate to orthogonal connection matrices varying in the compact group. (The scale of quantum of this spectrum is nothing but Plankian one). This is checked in simple... |
gr-qc/9606004 | null | K. S. Virbhadra | Directional naked singularity in general relativity | singlespaced 9 pages, LaTex, no figures | null | null | null | gr-qc astro-ph hep-th | null | We consider a static, axially symmetric, and asymptotically flat exact
solution of the Einstein vacuum equations, known as the gamma metric. This is
characterized by two constant parameters $m$ and $\gamma$. We find that the
total energy associated with this metric is $m \gamma$. Considering the total
energy to be po... | [
{
"created": "Tue, 4 Jun 1996 18:40:00 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Virbhadra",
"K. S.",
""
]
] | We consider a static, axially symmetric, and asymptotically flat exact solution of the Einstein vacuum equations, known as the gamma metric. This is characterized by two constant parameters $m$ and $\gamma$. We find that the total energy associated with this metric is $m \gamma$. Considering the total energy to be posi... |
gr-qc/0204076 | Roberto Giambo' | Roberto Giambo' | Anisotropic generalizations of de Sitter spacetime | null | Class.Quant.Grav.19:4399-4404,2002 | 10.1088/0264-9381/19/16/312 | null | gr-qc | null | It is known that de Sitter spacetime can be seen as the solution of field
equation for completely isotropic matter. In the present paper a new class of
exact solutions in spherical symmetry is found and discussed, such that the
energy--momentum tensor has two 2--dimensional distinct isotropic subspaces.
| [
{
"created": "Wed, 24 Apr 2002 16:01:14 GMT",
"version": "v1"
}
] | 2010-11-19 | [
[
"Giambo'",
"Roberto",
""
]
] | It is known that de Sitter spacetime can be seen as the solution of field equation for completely isotropic matter. In the present paper a new class of exact solutions in spherical symmetry is found and discussed, such that the energy--momentum tensor has two 2--dimensional distinct isotropic subspaces. |
2402.05752 | Jian-Dong Zhang | Jing Tan, Jian-dong Zhang, Hui-Min Fan, Jianwei Mei | Constraining the EdGB Theory with Extreme Mass-Ratio Inspirals | 9 page, 3 figures | null | null | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | The Einstein-dilaton-Gauss-Bonnet (EdGB) theory is a modified theory which
include a scalar field to couple with the higher order curvature terms. It has
already been constrained with various observations include the gravitational
wave (GW) with LIGO, Virgo and KAGRA (LVK) Collaboration. In this work, we
study the pr... | [
{
"created": "Thu, 8 Feb 2024 15:36:21 GMT",
"version": "v1"
}
] | 2024-02-09 | [
[
"Tan",
"Jing",
""
],
[
"Zhang",
"Jian-dong",
""
],
[
"Fan",
"Hui-Min",
""
],
[
"Mei",
"Jianwei",
""
]
] | The Einstein-dilaton-Gauss-Bonnet (EdGB) theory is a modified theory which include a scalar field to couple with the higher order curvature terms. It has already been constrained with various observations include the gravitational wave (GW) with LIGO, Virgo and KAGRA (LVK) Collaboration. In this work, we study the prob... |
gr-qc/0601103 | Burkhard Kleihaus | Theodora Ioannidou, Burkhard Kleihaus, and Jutta Kunz | Platonic Gravitating Skyrmions | 13 pages, 4 figures | Phys.Lett. B635 (2006) 161-167 | 10.1016/j.physletb.2006.02.049 | null | gr-qc | null | We construct globally regular gravitating Skyrmions, which possess only
discrete symmetries. In particular, we present tetrahedral and cubic Skyrmions.
The SU(2) Skyrme field is parametrized by an improved harmonic map ansatz.
Consistency then requires also a restricted ansatz for the metric. The
numerical solutions ... | [
{
"created": "Tue, 24 Jan 2006 18:39:07 GMT",
"version": "v1"
}
] | 2009-11-11 | [
[
"Ioannidou",
"Theodora",
""
],
[
"Kleihaus",
"Burkhard",
""
],
[
"Kunz",
"Jutta",
""
]
] | We construct globally regular gravitating Skyrmions, which possess only discrete symmetries. In particular, we present tetrahedral and cubic Skyrmions. The SU(2) Skyrme field is parametrized by an improved harmonic map ansatz. Consistency then requires also a restricted ansatz for the metric. The numerical solutions ob... |
2003.08344 | Saulo Pereira H | R. de C. Lima, Jos\'e A. C. Nogales and S. H. Pereira | Gravitational entropy of wormholes with exotic matter and in galactic
halos | 18 pages, 3 figures | IJMPD 29, (2020) 2050015 | 10.1142/S0218271820500157 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this work we study and compare the features of gravitational entropy near
the throat of transversable wormholes formed by exotic matter and wormholes in
galactic halos. We have verified that gravitational entropy and entropy density
of these wormholes in regions near their throats are indistinguishable for
objects... | [
{
"created": "Wed, 18 Mar 2020 17:18:00 GMT",
"version": "v1"
}
] | 2020-03-19 | [
[
"Lima",
"R. de C.",
""
],
[
"Nogales",
"José A. C.",
""
],
[
"Pereira",
"S. H.",
""
]
] | In this work we study and compare the features of gravitational entropy near the throat of transversable wormholes formed by exotic matter and wormholes in galactic halos. We have verified that gravitational entropy and entropy density of these wormholes in regions near their throats are indistinguishable for objects o... |
2006.16332 | Kristina Gudkova | A. D. Dolgov, K. S. Gudkova | Massive photons and electrically charged black holes | null | null | 10.1016/j.physletb.2020.135844 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The characteristic time of disappearance of electric field in massive
electrodynamics during the capture of electric charge by black holes is
calculated. It is shown that this time does not depend upon the photon mass.
The electric field at large distances disappears with the speed of light.
| [
{
"created": "Mon, 29 Jun 2020 19:35:33 GMT",
"version": "v1"
}
] | 2020-10-07 | [
[
"Dolgov",
"A. D.",
""
],
[
"Gudkova",
"K. S.",
""
]
] | The characteristic time of disappearance of electric field in massive electrodynamics during the capture of electric charge by black holes is calculated. It is shown that this time does not depend upon the photon mass. The electric field at large distances disappears with the speed of light. |
1106.3027 | Sandipan Sengupta | Romesh K. Kaul and Sandipan Sengupta | Topological parameters in gravity | references added | Phys. Rev. D 85, 024026 (2012) | 10.1103/PhysRevD.85.024026 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present the Hamiltonian analysis of the theory of gravity based on a
Lagrangian density containing Hilbert-Palatini term along with three
topological densities, Nieh-Yan, Pontryagin and Euler. The addition of these
topological terms modifies the symplectic structure non-trivially. The
resulting canonical theory de... | [
{
"created": "Wed, 15 Jun 2011 17:17:12 GMT",
"version": "v1"
},
{
"created": "Mon, 20 Jun 2011 05:30:10 GMT",
"version": "v2"
}
] | 2012-01-24 | [
[
"Kaul",
"Romesh K.",
""
],
[
"Sengupta",
"Sandipan",
""
]
] | We present the Hamiltonian analysis of the theory of gravity based on a Lagrangian density containing Hilbert-Palatini term along with three topological densities, Nieh-Yan, Pontryagin and Euler. The addition of these topological terms modifies the symplectic structure non-trivially. The resulting canonical theory deve... |
2109.05994 | M.V.S. Saketh | M. V. S. Saketh, Justin Vines, Jan Steinhoff, Alessandra Buonanno | Conservative and radiative dynamics in classical relativistic scattering
and bound systems | 25 pages | null | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | As recent work continues to demonstrate, the study of relativistic scattering
processes leads to valuable insights and computational tools applicable to the
relativistic bound-orbit two-body problem. This is particularly relevant in the
post-Minkowskian approach to the gravitational two-body problem, where the
field ... | [
{
"created": "Mon, 13 Sep 2021 14:13:05 GMT",
"version": "v1"
}
] | 2021-09-14 | [
[
"Saketh",
"M. V. S.",
""
],
[
"Vines",
"Justin",
""
],
[
"Steinhoff",
"Jan",
""
],
[
"Buonanno",
"Alessandra",
""
]
] | As recent work continues to demonstrate, the study of relativistic scattering processes leads to valuable insights and computational tools applicable to the relativistic bound-orbit two-body problem. This is particularly relevant in the post-Minkowskian approach to the gravitational two-body problem, where the field ha... |
1805.04900 | Bogeun Gwak | Bogeun Gwak | Coalescence of Kerr Black Holes: Binary Systems from GW150914 to
GW170814 | 27 pages, 22 figures | Entropy 21 (2019) no. 10 | 10.3390/e21101017 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate the energy of the gravitational wave from a binary black hole
merger by the coalescence of two Kerr black holes with an orbital angular
momentum. The coalescence is constructed to be consistent with particle
absorption in the limit in which the primary black hole is sufficiently large
compared with the... | [
{
"created": "Sun, 13 May 2018 15:29:57 GMT",
"version": "v1"
}
] | 2019-10-22 | [
[
"Gwak",
"Bogeun",
""
]
] | We investigate the energy of the gravitational wave from a binary black hole merger by the coalescence of two Kerr black holes with an orbital angular momentum. The coalescence is constructed to be consistent with particle absorption in the limit in which the primary black hole is sufficiently large compared with the s... |
1309.6163 | Shahpoor Moradi | Shahpoor Moradi, Roberto Pierini and Stefano Mancini | Spin-Particles Entanglement in Robertson-Walker Spacetime | null | Phys. Rev. D 89, 024022 (2014) | 10.1103/PhysRevD.89.024022 | null | gr-qc quant-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the entanglement between two modes of Dirac field in an expanding
spacetime characterized by the Robertson-Walker metric. This spacetime model
turns out to be asymptotically (in the remote past and far future regions)
Minkowskian. Then, on the one hand we show entanglement creation between
particles and anti... | [
{
"created": "Mon, 23 Sep 2013 18:53:22 GMT",
"version": "v1"
}
] | 2014-01-21 | [
[
"Moradi",
"Shahpoor",
""
],
[
"Pierini",
"Roberto",
""
],
[
"Mancini",
"Stefano",
""
]
] | We study the entanglement between two modes of Dirac field in an expanding spacetime characterized by the Robertson-Walker metric. This spacetime model turns out to be asymptotically (in the remote past and far future regions) Minkowskian. Then, on the one hand we show entanglement creation between particles and anti-p... |
0909.2320 | Wlodzimierz Piechocki | Wlodzimierz Piechocki | Energy scale of the Big Bounce | Talk presented at the conference: XXV Max Born Symposium `The Planck
Scale', Wroclaw, 29 June - 3 July, 2009 | null | 10.1063/1.3284388 | INS 09 | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We examine the nature of the cosmological big-bounce (BB) transition within
the loop geometry underlying Loop Quantum Cosmology (LQC) at classical and
quantum levels. Our canonical quantization method is an alternative to the
standard LQC. Our method opens the door for analyzes of spectra of physical
observables like... | [
{
"created": "Sat, 12 Sep 2009 10:27:12 GMT",
"version": "v1"
}
] | 2015-05-14 | [
[
"Piechocki",
"Wlodzimierz",
""
]
] | We examine the nature of the cosmological big-bounce (BB) transition within the loop geometry underlying Loop Quantum Cosmology (LQC) at classical and quantum levels. Our canonical quantization method is an alternative to the standard LQC. Our method opens the door for analyzes of spectra of physical observables like e... |
gr-qc/0101027 | Jozef Sima | Jozef Sima and Miroslav Sukenik | Determination of Upper Limit of Stars Mass Based on Model of Expansive
Nondecelerative Universe | 3 pages, LaTeX | null | null | SS-01-02 | gr-qc | null | Incorporation of the Vaidya metric in the model of Expansive Nondecelerative
Universe allows to localize the energy density of gravitational field that,
subsequently, enables to determine the upper limit of stars mass. The upper
limit decreases with cosmological time and at present is close to 30-fold of
our Sun mass... | [
{
"created": "Mon, 8 Jan 2001 11:31:03 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Sima",
"Jozef",
""
],
[
"Sukenik",
"Miroslav",
""
]
] | Incorporation of the Vaidya metric in the model of Expansive Nondecelerative Universe allows to localize the energy density of gravitational field that, subsequently, enables to determine the upper limit of stars mass. The upper limit decreases with cosmological time and at present is close to 30-fold of our Sun mass. |
2305.12466 | Rong-Jia Yang | Ziqiang Cai, Tong-Yu He, Wen-Qian Wang, Zhan-Wen Han, Rong-Jia Yang | Types of the geodesic motions in Kerr-Sen-AdS$_{4}$ spacetime | 12 pages, 14 figures | Universe 10 (2024) 3, 133 | 10.3390/universe10030133 | null | gr-qc hep-th | http://creativecommons.org/licenses/by-nc-sa/4.0/ | We consider the geodesic motions in the Kerr-Sen-AdS$_4$ spacetime. We obtain
the equations of motion for light rays and test particles. Using the parametric
diagrams, we shown some regions where the radial and latitudinal geodesic
motions are allowed. We analyse the impact of parameter related to dilatonic
scalar on... | [
{
"created": "Sun, 21 May 2023 14:05:49 GMT",
"version": "v1"
},
{
"created": "Sun, 12 Nov 2023 12:56:52 GMT",
"version": "v2"
}
] | 2024-04-11 | [
[
"Cai",
"Ziqiang",
""
],
[
"He",
"Tong-Yu",
""
],
[
"Wang",
"Wen-Qian",
""
],
[
"Han",
"Zhan-Wen",
""
],
[
"Yang",
"Rong-Jia",
""
]
] | We consider the geodesic motions in the Kerr-Sen-AdS$_4$ spacetime. We obtain the equations of motion for light rays and test particles. Using the parametric diagrams, we shown some regions where the radial and latitudinal geodesic motions are allowed. We analyse the impact of parameter related to dilatonic scalar on t... |
gr-qc/0311007 | Matthew R. Francis | Matthew R. Francis and Arthur Kosowsky | Geometric Algebra Techniques for General Relativity | 34 pages, 0 figures; submitted to Annals of Physics | Annals Phys. 311 (2004) 459-502 | 10.1016/j.aop.2003.12.009 | null | gr-qc | null | Geometric (Clifford) algebra provides an efficient mathematical language for
describing physical problems. We formulate general relativity in this language.
The resulting formalism combines the efficiency of differential forms with the
straightforwardness of coordinate methods. We focus our attention on
orthonormal f... | [
{
"created": "Mon, 3 Nov 2003 16:43:29 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Francis",
"Matthew R.",
""
],
[
"Kosowsky",
"Arthur",
""
]
] | Geometric (Clifford) algebra provides an efficient mathematical language for describing physical problems. We formulate general relativity in this language. The resulting formalism combines the efficiency of differential forms with the straightforwardness of coordinate methods. We focus our attention on orthonormal fra... |
1702.02410 | Matti Savelainen | Matti Savelainen | Four-form field versus fundamental scalar field | 14 pages | JETP Lett. 105 (2017) no.10, 682-685 | 10.1134/S0021364017100034 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A modified-gravity theory with a four-form field strength $F$, a variable
gravitational coupling parameter $G(F)$, and a standard matter action is
considered here. Maxwell and Einstein equations are now derived when including
to action also derivates of $F$. The energy momentum tensor of the 4-form field
contains bot... | [
{
"created": "Wed, 8 Feb 2017 12:59:38 GMT",
"version": "v1"
}
] | 2017-07-27 | [
[
"Savelainen",
"Matti",
""
]
] | A modified-gravity theory with a four-form field strength $F$, a variable gravitational coupling parameter $G(F)$, and a standard matter action is considered here. Maxwell and Einstein equations are now derived when including to action also derivates of $F$. The energy momentum tensor of the 4-form field contains both ... |
1704.08712 | Sergey Chervon | Sergey V. Chervon, Igor V. Fomin and Aroonkumar Beesham | The method of generating functions in exact scalar field cosmology | 15 parges | null | 10.1140/epjc/s10052-018-5795-z | LGCA2017/CH3 and LMME2017/F3 | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Exact solutions construction in scalar fields cosmology is of growing
interest. In this work we review the results which obtained with the help of
one of the most effective method. Namely, the method of generating functions
for exact solutions construction in the scalar field cosmology. We also
included into debate t... | [
{
"created": "Thu, 27 Apr 2017 18:41:06 GMT",
"version": "v1"
},
{
"created": "Sat, 31 Mar 2018 09:54:35 GMT",
"version": "v2"
}
] | 2018-05-09 | [
[
"Chervon",
"Sergey V.",
""
],
[
"Fomin",
"Igor V.",
""
],
[
"Beesham",
"Aroonkumar",
""
]
] | Exact solutions construction in scalar fields cosmology is of growing interest. In this work we review the results which obtained with the help of one of the most effective method. Namely, the method of generating functions for exact solutions construction in the scalar field cosmology. We also included into debate the... |
gr-qc/0208018 | Jonathan Halliwell | J.J. Halliwell | The Interpretation of Quantum Cosmology and the Problem of Time | 22 pages, Latex, 1 figure. To appear in Proceedings of Stephen
Hawking's 60th Birthday Conference | null | null | Imperial TP/1-02/23 | gr-qc | null | The development of quantum cosmology, in which Stephen Hawking played a
crucial role, has frequently encountered substantial conceptual and technical
difficulties related to the problem of time in quantum gravity and to general
issues concerning the foundations of quantum theory. In this contribution to
Stephen's 60t... | [
{
"created": "Wed, 7 Aug 2002 13:02:39 GMT",
"version": "v1"
},
{
"created": "Thu, 8 Aug 2002 15:07:32 GMT",
"version": "v2"
}
] | 2007-05-23 | [
[
"Halliwell",
"J. J.",
""
]
] | The development of quantum cosmology, in which Stephen Hawking played a crucial role, has frequently encountered substantial conceptual and technical difficulties related to the problem of time in quantum gravity and to general issues concerning the foundations of quantum theory. In this contribution to Stephen's 60th ... |
0905.3226 | Jiliang Jing | Jieci Wang, Qiyuan Pan, Songbai Chen and Jiliang Jing | Entanglement of coupled massive scalar field in background of dilaton
black hole | 11 pages, 2 figures, Accepted by PLB | Phys.Lett.B677:186-189,2009 | 10.1016/j.physletb.2009.05.028 | null | gr-qc hep-th quant-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The entanglement of the coupled massive scalar field in the spacetime of a
Garfinkle-Horowitz-Strominger(GHS) dilaton black hole has been investigated. It
is found that the entanglement does not depend on the mass of the particle and
the coupling between the scalar field and the gravitational field, but it
decreases ... | [
{
"created": "Wed, 20 May 2009 07:03:34 GMT",
"version": "v1"
}
] | 2010-04-30 | [
[
"Wang",
"Jieci",
""
],
[
"Pan",
"Qiyuan",
""
],
[
"Chen",
"Songbai",
""
],
[
"Jing",
"Jiliang",
""
]
] | The entanglement of the coupled massive scalar field in the spacetime of a Garfinkle-Horowitz-Strominger(GHS) dilaton black hole has been investigated. It is found that the entanglement does not depend on the mass of the particle and the coupling between the scalar field and the gravitational field, but it decreases as... |
2101.11015 | Miren Radia | Miren Radia, Ulrich Sperhake, Emanuele Berti and Robin Croft | Anomalies in the gravitational recoil of eccentric black-hole mergers
with unequal mass ratios | 14 pages, 7 figures, to match published version in Phys. Rev. D | Phys. Rev. D 103, 104006 (2021) | 10.1103/PhysRevD.103.104006 | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The radiation of linear momentum imparts a recoil (or "kick") to the center
of mass of a merging black hole binary system. Recent numerical relativity
calculations have shown that eccentricity can lead to an approximate 25%
increase in recoil velocities for equal-mass, spinning binaries with spins
lying in the orbita... | [
{
"created": "Tue, 26 Jan 2021 19:00:02 GMT",
"version": "v1"
},
{
"created": "Tue, 11 May 2021 10:40:10 GMT",
"version": "v2"
}
] | 2021-05-12 | [
[
"Radia",
"Miren",
""
],
[
"Sperhake",
"Ulrich",
""
],
[
"Berti",
"Emanuele",
""
],
[
"Croft",
"Robin",
""
]
] | The radiation of linear momentum imparts a recoil (or "kick") to the center of mass of a merging black hole binary system. Recent numerical relativity calculations have shown that eccentricity can lead to an approximate 25% increase in recoil velocities for equal-mass, spinning binaries with spins lying in the orbital ... |
2211.01582 | Michael Good | Michael R.R. Good | Spacetime continuity and quantum information loss | 9 page, 5 figures, 1 table | Universe 2018, 4(11), 122 | 10.3390/universe4110122 | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | Continuity across the shock wave of two regions in the metric during the
formation of a black hole can be relaxed in order to achieve information
preservation. A Planck scale sized spacetime discontinuity leads to unitarity
(a constant asymptotic entanglement entropy) by restricting the origin of
coordinates (moving ... | [
{
"created": "Thu, 3 Nov 2022 04:26:33 GMT",
"version": "v1"
}
] | 2022-11-04 | [
[
"Good",
"Michael R. R.",
""
]
] | Continuity across the shock wave of two regions in the metric during the formation of a black hole can be relaxed in order to achieve information preservation. A Planck scale sized spacetime discontinuity leads to unitarity (a constant asymptotic entanglement entropy) by restricting the origin of coordinates (moving mi... |
2008.01661 | Zhongwen Feng | Zhong-Wen Feng, Xia Zhou, Shi-Qi Zhou | The generalized uncertainty principle impact onto the black hole
thermodynamic phase transition | 9 Pages, 5 figures | Front. Phys. 2022, 10: 887410 | 10.3389/fphy.2022.887410 | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | In this work, we conduct a study regarding the thermodynamic evolution and
the phase transition of a black hole in a finite spherical cavity subject to
the generalized uncertainty principle. The results demonstrate that both the
positive and negative generalized uncertainty principle parameters $\beta_0$
can signific... | [
{
"created": "Mon, 3 Aug 2020 03:57:38 GMT",
"version": "v1"
},
{
"created": "Wed, 9 Dec 2020 09:47:55 GMT",
"version": "v2"
},
{
"created": "Wed, 18 May 2022 03:19:54 GMT",
"version": "v3"
}
] | 2022-05-26 | [
[
"Feng",
"Zhong-Wen",
""
],
[
"Zhou",
"Xia",
""
],
[
"Zhou",
"Shi-Qi",
""
]
] | In this work, we conduct a study regarding the thermodynamic evolution and the phase transition of a black hole in a finite spherical cavity subject to the generalized uncertainty principle. The results demonstrate that both the positive and negative generalized uncertainty principle parameters $\beta_0$ can significan... |
1406.3452 | Luis Herrera | L. Herrera, A. Di Prisco and J. Ospino | Shear-free axially symmetric dissipative fluids | 5 pages Revtex4-1. Published in Phys. Rev. D. Some typos corrected | Phys. Rev. D89,127502, (2014) | 10.1103/PhysRevD.89.127502 | null | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the general properties of axially symmetric dissipative
configurations under the shear-free condition. The link between the magnetic
part of the Weyl tensor and the vorticity, as well as the role of the
dissipative fluxes, are clearly exhibited. As a particular case we examine the
geodesic fluid. In this lat... | [
{
"created": "Fri, 13 Jun 2014 08:38:36 GMT",
"version": "v1"
},
{
"created": "Thu, 26 Jun 2014 07:57:05 GMT",
"version": "v2"
}
] | 2015-06-22 | [
[
"Herrera",
"L.",
""
],
[
"Di Prisco",
"A.",
""
],
[
"Ospino",
"J.",
""
]
] | We study the general properties of axially symmetric dissipative configurations under the shear-free condition. The link between the magnetic part of the Weyl tensor and the vorticity, as well as the role of the dissipative fluxes, are clearly exhibited. As a particular case we examine the geodesic fluid. In this latte... |
1910.12182 | Zhen-Ming Xu | Zhen-Ming Xu, Bin Wu, and Wen-Li Yang | Ruppeiner thermodynamic geometry for the Schwarzschild-AdS black hole | v1:5 pages, twocolumn, 2 figures; v2:add References and some
comments, published in Physical Review D | Phys. Rev. D 101 (2020) 024018 | 10.1103/PhysRevD.101.024018 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Due to the non-independence of entropy and thermodynamic volume for
spherically symmetric black holes in the AdS spacetime, when applying the
Ruppeiner thermodynamic geometry theory to these black holes, we often
encounter an unavoidable problem of the singularity about the line element of
thermodynamic geometry. In ... | [
{
"created": "Sun, 27 Oct 2019 05:05:39 GMT",
"version": "v1"
},
{
"created": "Tue, 7 Jan 2020 02:04:55 GMT",
"version": "v2"
}
] | 2020-01-08 | [
[
"Xu",
"Zhen-Ming",
""
],
[
"Wu",
"Bin",
""
],
[
"Yang",
"Wen-Li",
""
]
] | Due to the non-independence of entropy and thermodynamic volume for spherically symmetric black holes in the AdS spacetime, when applying the Ruppeiner thermodynamic geometry theory to these black holes, we often encounter an unavoidable problem of the singularity about the line element of thermodynamic geometry. In th... |
1606.01132 | Prasia P | P Prasia and V C Kuriakose | Quasi Normal Modes and P-V Criticallity for scalar perturbations in a
class of dRGT massive gravity around Black Holes | Accepted for publication in 'General Relativity and Gravitation'-
Springer | Gen. Relativ. Gravit., 48(7) 48: 89 (2016) | 10.1007/s10714-016-2083-9 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate black holes in a class of dRGT massive gravity for their quasi
normal modes (QNMs) for neutral and charged ones using Improved Asymptotic
Iteration Method (Improved AIM) and their thermodynamic behavior. The QNMs are
studied for different values of the massive parameter m_g for both neutral and
charged... | [
{
"created": "Fri, 3 Jun 2016 15:18:45 GMT",
"version": "v1"
}
] | 2017-01-31 | [
[
"Prasia",
"P",
""
],
[
"Kuriakose",
"V C",
""
]
] | We investigate black holes in a class of dRGT massive gravity for their quasi normal modes (QNMs) for neutral and charged ones using Improved Asymptotic Iteration Method (Improved AIM) and their thermodynamic behavior. The QNMs are studied for different values of the massive parameter m_g for both neutral and charged d... |
1312.0062 | Abhishek Majhi | Abhishek Majhi | Thermodynamic partition function from quantum theory for black hole
horizons in loop quantum gravity | title changed and modifications made to match the published version | Advances in High Energy Physics, vol. 2016, Article ID 1068757, 10
pages, 2016 | 10.1155/2016/1068757 | null | gr-qc quant-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We establish the link between the thermodynamics and the quantum theory of
black hole horizons through the construction of the thermodynamic partition
function, partly based on some physically plausible arguments, by beginning
from the description of quantum states of the horizon, considering loop quantum
gravity(LQG... | [
{
"created": "Sat, 30 Nov 2013 04:51:20 GMT",
"version": "v1"
},
{
"created": "Sat, 28 Jun 2014 15:17:30 GMT",
"version": "v2"
},
{
"created": "Thu, 22 Sep 2016 16:36:48 GMT",
"version": "v3"
}
] | 2016-09-23 | [
[
"Majhi",
"Abhishek",
""
]
] | We establish the link between the thermodynamics and the quantum theory of black hole horizons through the construction of the thermodynamic partition function, partly based on some physically plausible arguments, by beginning from the description of quantum states of the horizon, considering loop quantum gravity(LQG) ... |
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