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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
gr-qc/9905088 | Alexander N. Petrov | A. N. Petrov (1) and J. Katz (2) ((1) Sternberg Astronomical
Institute, Moscow (2) The Racah Institute of Physics, Jerusalem) | Conservation Laws for Large Perturbations on Curved Backgrounds | 13 pages, LaTeX, to appear in the Proceedings of the Conference on
"Fundamental Interactions: From Symmetries to Black Holes" held in Brussels
March 25 - 27, 1999 | Fundamental Interaction: From Symmetries to Black Holes (eds.:
J.M. Frere, M. Henneaux, A. Servin & Ph. Spindel), p.p. 147-157. Brussels:
Universite Libre de Bruxells (1999). | null | null | gr-qc | null | Backgrounds are pervasive in almost every application of general relativity.
Here we consider the Lagrangian formulation of general relativity for large
perturbations with respect to a curved background spacetime. We show that
Noether's theorem combined with Belinfante's "symmetrization" method applied to
the group o... | [
{
"created": "Sat, 22 May 1999 09:39:57 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Petrov",
"A. N.",
""
],
[
"Katz",
"J.",
""
]
] | Backgrounds are pervasive in almost every application of general relativity. Here we consider the Lagrangian formulation of general relativity for large perturbations with respect to a curved background spacetime. We show that Noether's theorem combined with Belinfante's "symmetrization" method applied to the group of ... |
1503.00565 | Christian Corda Prof. | Christian Corda | Quasi-normal modes: the "electrons" of black holes as "gravitational
atoms"? Implications for the black hole information puzzle | 31 pages, review paper. Invited contribution accepted for publication
in the Advances in High Energy Physics Special Issue "Dark Atoms and Dark
Radiation 2015", edited by Maxim Khlopov, Konstantin Belotsky, Jean-Ren\'e
Cudell and Chris Kouvaris. Title changed with respect to the first version.
The results of ar... | Adv. High En. Phys. 867601 (2015) | 10.1155/2015/867601 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Some recent important results on black hole (BH) quantum physics concerning
the BH effective state and the natural correspondence between Hawking radiation
and BH quasi-normal modes (QNMs) are reviewed, clarified and refined. Such a
correspondence permits to naturally interpret QNMs as quantum levels in a
semi-classi... | [
{
"created": "Thu, 26 Feb 2015 18:01:47 GMT",
"version": "v1"
},
{
"created": "Wed, 25 Mar 2015 13:26:36 GMT",
"version": "v2"
},
{
"created": "Tue, 31 Mar 2015 16:18:17 GMT",
"version": "v3"
}
] | 2015-07-23 | [
[
"Corda",
"Christian",
""
]
] | Some recent important results on black hole (BH) quantum physics concerning the BH effective state and the natural correspondence between Hawking radiation and BH quasi-normal modes (QNMs) are reviewed, clarified and refined. Such a correspondence permits to naturally interpret QNMs as quantum levels in a semi-classica... |
gr-qc/9503046 | A. P. Balachandran | A. P. Balachandran, G. Bimonte, G. Marmo and A. Simoni | TOPOLOGY CHANGE AND QUANTUM PHYSICS | 18 pages, Latex file (revised because figures had problems) | Nucl.Phys. B446 (1995) 299-314 | 10.1016/0550-3213(95)00260-Y | DSF-T-5/95, SU-4240-604, IC/95/24 | gr-qc hep-th | null | The role of topology in elementary quantum physics is discussed in detail. It
is argued that attributes of classical spatial topology emerge from properties
of state vectors with suitably smooth time evolution. Equivalently, they emerge
from considerations on the domain of the quantum Hamiltonian, this domain being
o... | [
{
"created": "Fri, 24 Mar 1995 23:25:12 GMT",
"version": "v1"
},
{
"created": "Sun, 26 Mar 1995 16:47:17 GMT",
"version": "v2"
},
{
"created": "Mon, 27 Mar 1995 22:44:04 GMT",
"version": "v3"
}
] | 2009-10-28 | [
[
"Balachandran",
"A. P.",
""
],
[
"Bimonte",
"G.",
""
],
[
"Marmo",
"G.",
""
],
[
"Simoni",
"A.",
""
]
] | The role of topology in elementary quantum physics is discussed in detail. It is argued that attributes of classical spatial topology emerge from properties of state vectors with suitably smooth time evolution. Equivalently, they emerge from considerations on the domain of the quantum Hamiltonian, this domain being oft... |
2004.06466 | Yeinzon Rodriguez Garcia | L. Gabriel Gomez (1), Yeinzon Rodriguez (1,2,3) ((1) Universidad
Industrial de Santander, (2) Universidad Antonio Narino, (3) The Abdus Salam
International Centre for Theoretical Physics) | Coupled Multi-Proca Vector Dark Energy | LaTeX file in RevTex 4.1 style, 14 pages in double column, 13
figures. v2: minor changes according to the referee's suggestions. v3:
Published version in Physics of the Dark Universe | Phys. Dark Univ. 31 (2021) 100759 | 10.1016/j.dark.2020.100759 | PI/UAN-2020-668FT | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study a new class of vector dark energy models where multi-Proca fields
$A_\mu^a$ are coupled to cold dark matter by the term
$f(X)\tilde{\mathcal{L}}_{m}$ where $f(X)$ is a general function of $X\equiv
-\frac{1}{2}A^\mu_ a A^a_\mu$ and $\tilde{\mathcal{L}}_{m}$ is the cold dark
matter Lagrangian. From here, we de... | [
{
"created": "Tue, 14 Apr 2020 13:15:20 GMT",
"version": "v1"
},
{
"created": "Sun, 13 Dec 2020 19:02:12 GMT",
"version": "v2"
},
{
"created": "Thu, 24 Dec 2020 13:40:53 GMT",
"version": "v3"
}
] | 2020-12-25 | [
[
"Gomez",
"L. Gabriel",
""
],
[
"Rodriguez",
"Yeinzon",
""
]
] | We study a new class of vector dark energy models where multi-Proca fields $A_\mu^a$ are coupled to cold dark matter by the term $f(X)\tilde{\mathcal{L}}_{m}$ where $f(X)$ is a general function of $X\equiv -\frac{1}{2}A^\mu_ a A^a_\mu$ and $\tilde{\mathcal{L}}_{m}$ is the cold dark matter Lagrangian. From here, we deri... |
1308.2934 | Christopher Duston | Christopher L Duston | The Fundamental Group of a Spatial Section Represented by a Topspin
Network | Based on work presented at the LOOPS 13 conference at the Perimeter
Institute | null | null | null | gr-qc math-ph math.GN math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present an algorithm which determines the fundamental group of a spatial
section using topspin networks. Tracking the topology of the spatial section is
a unique feature of this approach, which is not possible in standard Loop
Quantum Gravity. This leads to an example of spatial topology change in a
smooth 4-manif... | [
{
"created": "Tue, 13 Aug 2013 18:27:20 GMT",
"version": "v1"
}
] | 2013-08-14 | [
[
"Duston",
"Christopher L",
""
]
] | We present an algorithm which determines the fundamental group of a spatial section using topspin networks. Tracking the topology of the spatial section is a unique feature of this approach, which is not possible in standard Loop Quantum Gravity. This leads to an example of spatial topology change in a smooth 4-manifol... |
2406.11694 | Alexander Zhidenko | R. A. Konoplya and A. Zhidenko | Correspondence between grey-body factors and quasinormal modes | 9 pages, 2 figures | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Quasinormal modes and grey-body factors are spectral characteristics
corresponding to different boundary conditions: the former imply purely
outgoing waves to the event horizon and infinity, while the latter allow for an
incoming wave from the horizon, thus describing a scattering problem.
Nevertheless, we show that ... | [
{
"created": "Mon, 17 Jun 2024 16:11:19 GMT",
"version": "v1"
}
] | 2024-06-18 | [
[
"Konoplya",
"R. A.",
""
],
[
"Zhidenko",
"A.",
""
]
] | Quasinormal modes and grey-body factors are spectral characteristics corresponding to different boundary conditions: the former imply purely outgoing waves to the event horizon and infinity, while the latter allow for an incoming wave from the horizon, thus describing a scattering problem. Nevertheless, we show that th... |
gr-qc/0605111 | Lorenzo Iorio | Lorenzo Iorio | Does Cassini allow to measure relativistic orbital effects in the
Saturnian system of satellites? | Latex2e, 7 pages, no figures, 3 tables, 12 references. To appear in
Int. J. Mod. Phys. D | Int.J.Mod.Phys.D16:11-17,2007 | 10.1142/S0218271807009255 | null | gr-qc astro-ph | null | In this paper we address the following question: do the recent advances in
the orbit determination of the major natural satellites of Saturn obtained with
the analysis of the first data sets from the Cassini mission allow to detect
the general relativistic gravitoelectric orbital precessions of such moons? The
answer... | [
{
"created": "Fri, 19 May 2006 15:49:22 GMT",
"version": "v1"
},
{
"created": "Mon, 5 Jun 2006 15:14:03 GMT",
"version": "v2"
},
{
"created": "Mon, 11 Sep 2006 10:17:27 GMT",
"version": "v3"
}
] | 2010-11-11 | [
[
"Iorio",
"Lorenzo",
""
]
] | In this paper we address the following question: do the recent advances in the orbit determination of the major natural satellites of Saturn obtained with the analysis of the first data sets from the Cassini mission allow to detect the general relativistic gravitoelectric orbital precessions of such moons? The answer i... |
1205.6112 | Jo\~ao Lopes Costa | Piotr T. Chru\'sciel and Jo\~ao Lopes Costa and Markus Heusler | Stationary Black Holes: Uniqueness and Beyond | Major update of the original version by Markus Heusler from 1998.
Piotr T. Chru\'sciel and Jo\~ao Lopes Costa succeeded to this review's
authorship. Significantly restructured and updated all sections; changes are
too numerous to be usefully described here. The number of references
increased from 186 to 329 | Living Rev. Relativity 15, (2012), 7 | 10.12942/lrr-2012-7 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The spectrum of known black-hole solutions to the stationary Einstein
equations has been steadily increasing, sometimes in unexpected ways. In
particular, it has turned out that not all black-hole-equilibrium
configurations are characterized by their mass, angular momentum and global
charges. Moreover, the high degre... | [
{
"created": "Mon, 28 May 2012 13:44:11 GMT",
"version": "v1"
}
] | 2015-06-05 | [
[
"Chruściel",
"Piotr T.",
""
],
[
"Costa",
"João Lopes",
""
],
[
"Heusler",
"Markus",
""
]
] | The spectrum of known black-hole solutions to the stationary Einstein equations has been steadily increasing, sometimes in unexpected ways. In particular, it has turned out that not all black-hole-equilibrium configurations are characterized by their mass, angular momentum and global charges. Moreover, the high degree ... |
2106.13819 | Alexandre Toubiana | Alexandre Toubiana, Kaze W.K. Wong, Stanislav Babak, Enrico Barausse,
Emanuele Berti, Jonathan R. Gair, Sylvain Marsat, Stephen R. Taylor | Discriminating between different scenarios for the formation and
evolution of massive black holes with LISA | Matches PRD version, minor changes | null | 10.1103/PhysRevD.104.083027 | null | gr-qc astro-ph.GA astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Electromagnetic observations have provided strong evidence for the existence
of massive black holes in the center of galaxies, but their origin is still
poorly known. Different scenarios for the formation and evolution of massive
black holes lead to different predictions for their properties and merger
rates. LISA ob... | [
{
"created": "Fri, 25 Jun 2021 18:00:12 GMT",
"version": "v1"
},
{
"created": "Thu, 28 Oct 2021 16:43:37 GMT",
"version": "v2"
}
] | 2021-11-03 | [
[
"Toubiana",
"Alexandre",
""
],
[
"Wong",
"Kaze W. K.",
""
],
[
"Babak",
"Stanislav",
""
],
[
"Barausse",
"Enrico",
""
],
[
"Berti",
"Emanuele",
""
],
[
"Gair",
"Jonathan R.",
""
],
[
"Marsat",
"Sylvain",
""... | Electromagnetic observations have provided strong evidence for the existence of massive black holes in the center of galaxies, but their origin is still poorly known. Different scenarios for the formation and evolution of massive black holes lead to different predictions for their properties and merger rates. LISA obse... |
2402.17800 | Subenoy Chakraborty | Madhukrishna Chakraborty and Subenoy Chakraborty | Raychaudhuri equation and the dynamics of cosmic evolution | 16 pages, 10 figures | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The paper deals with the Raychaudhuri equation (RE) which is a non-linear
ordinary differential equation in $\Theta$, the expansion scalar corresponding
to a geodesic flow. Focusing theorem which follows as a consequence of the RE
has been restated in terms of the cosmic parameter $q$ (deceleration parameter)
both fo... | [
{
"created": "Tue, 27 Feb 2024 06:12:14 GMT",
"version": "v1"
}
] | 2024-02-29 | [
[
"Chakraborty",
"Madhukrishna",
""
],
[
"Chakraborty",
"Subenoy",
""
]
] | The paper deals with the Raychaudhuri equation (RE) which is a non-linear ordinary differential equation in $\Theta$, the expansion scalar corresponding to a geodesic flow. Focusing theorem which follows as a consequence of the RE has been restated in terms of the cosmic parameter $q$ (deceleration parameter) both for ... |
2209.00640 | Collin Capano | Collin D. Capano and Jahed Abedi and Shilpa Kastha and Alexander H.
Nitz and Julian Westerweck and Yi-Fan Wang and Miriam Cabero and Alex B.
Nielsen and Badri Krishnan | Statistical validation of the detection of a sub-dominant quasi-normal
mode in GW190521 | 16 pages, 10 figures | null | null | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | One of the major aims of gravitational wave astronomy is to observationally
test the Kerr nature of black holes. The strongest such test, with minimal
additional assumptions, is provided by observations of multiple ringdown modes,
also known as black hole spectroscopy. For the gravitational wave merger event
GW190521... | [
{
"created": "Thu, 1 Sep 2022 17:47:39 GMT",
"version": "v1"
},
{
"created": "Tue, 18 Oct 2022 20:01:58 GMT",
"version": "v2"
},
{
"created": "Thu, 5 Oct 2023 19:43:17 GMT",
"version": "v3"
}
] | 2023-10-09 | [
[
"Capano",
"Collin D.",
""
],
[
"Abedi",
"Jahed",
""
],
[
"Kastha",
"Shilpa",
""
],
[
"Nitz",
"Alexander H.",
""
],
[
"Westerweck",
"Julian",
""
],
[
"Wang",
"Yi-Fan",
""
],
[
"Cabero",
"Miriam",
""
],
[... | One of the major aims of gravitational wave astronomy is to observationally test the Kerr nature of black holes. The strongest such test, with minimal additional assumptions, is provided by observations of multiple ringdown modes, also known as black hole spectroscopy. For the gravitational wave merger event GW190521, ... |
0912.2330 | Philipp M\"osta | Philipp M\"osta, Carlos Palenzuela, Luciano Rezzolla, Luis Lehner,
Shin'ichirou Yoshida, Denis Pollney | Vacuum Electromagnetic Counterparts of Binary Black-Hole Mergers | null | Phys.Rev.D81:064017,2010 | 10.1103/PhysRevD.81.064017 | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | As one step towards a systematic modeling of the electromagnetic (EM)
emission from an inspiralling black hole binary we consider a simple scenario
in which the binary moves in a uniform magnetic field anchored to a distant
circumbinary disc. We study this system by solving the Einstein-Maxwell
equations in which the... | [
{
"created": "Fri, 11 Dec 2009 20:06:05 GMT",
"version": "v1"
}
] | 2010-04-06 | [
[
"Mösta",
"Philipp",
""
],
[
"Palenzuela",
"Carlos",
""
],
[
"Rezzolla",
"Luciano",
""
],
[
"Lehner",
"Luis",
""
],
[
"Yoshida",
"Shin'ichirou",
""
],
[
"Pollney",
"Denis",
""
]
] | As one step towards a systematic modeling of the electromagnetic (EM) emission from an inspiralling black hole binary we consider a simple scenario in which the binary moves in a uniform magnetic field anchored to a distant circumbinary disc. We study this system by solving the Einstein-Maxwell equations in which the E... |
1904.01345 | Emmanuil Saridakis | Shin'ichi Nojiri, Sergei D. Odintsov, Emmanuel N. Saridakis | Holographic inflation | 6 pages, 2 figures, version accepted in Phys.Lett.B | null | 10.1016/j.physletb.2019.134829 | null | gr-qc astro-ph.CO hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We apply the holographic principle at the early universe, obtaining an
inflation realization of holographic origin. Such a consideration has equal
footing with its well-studied late-time application, and moreover the decrease
of the horizons at early times naturally increases holographic energy density
at inflationar... | [
{
"created": "Tue, 2 Apr 2019 11:32:31 GMT",
"version": "v1"
},
{
"created": "Thu, 1 Aug 2019 09:16:30 GMT",
"version": "v2"
}
] | 2019-08-14 | [
[
"Nojiri",
"Shin'ichi",
""
],
[
"Odintsov",
"Sergei D.",
""
],
[
"Saridakis",
"Emmanuel N.",
""
]
] | We apply the holographic principle at the early universe, obtaining an inflation realization of holographic origin. Such a consideration has equal footing with its well-studied late-time application, and moreover the decrease of the horizons at early times naturally increases holographic energy density at inflationary ... |
1411.6052 | Ernesto F. Eiroa | Ernesto F. Eiroa, Claudio Simeone | Asymptotically anti-de Sitter cylindrical thin-shell wormholes | 11 pages, 3 figures; v2: improved version | Phys. Rev. D 91, 064005 (2015) | 10.1103/PhysRevD.91.064005 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this article we investigate cylindrical thin-shell wormholes which are
asymptotically anti-de Sitter. We analyze their stability under perturbations
preserving the symmetry by using two different methods. We compare the results
with those corresponding to the wormholes constructed from the Levi-Civita
spacetime. W... | [
{
"created": "Fri, 21 Nov 2014 23:47:40 GMT",
"version": "v1"
},
{
"created": "Wed, 11 Mar 2015 17:00:34 GMT",
"version": "v2"
}
] | 2015-03-12 | [
[
"Eiroa",
"Ernesto F.",
""
],
[
"Simeone",
"Claudio",
""
]
] | In this article we investigate cylindrical thin-shell wormholes which are asymptotically anti-de Sitter. We analyze their stability under perturbations preserving the symmetry by using two different methods. We compare the results with those corresponding to the wormholes constructed from the Levi-Civita spacetime. We ... |
2003.13202 | Rika Yamada | Rika Yamada, Yutaro Enomoto, Atsushi Nishizawa, Koji Nagano, Sachiko
Kuroyanagi, Keiko Kokeyama, Kentaro Komori, Yuta Michimura, Takeo Naito,
Izumi Watanabe, Taigen Morimoto, Masaki Ando, Akira Furusawa and Seiji
Kawamura | Optimization of quantum noise by completing the square of multiple
interferometer outputs in quantum locking for gravitational wave detectors | 9 pages, 9 figures | null | 10.1016/j.physleta.2020.126626 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The quantum locking technique, which uses additional short low-loss
sub-cavities, is effective in reducing quantum noise in space gravitational
wave antenna DECIGO. However, the quantum noise of the main interferometer
depends on the control systems in the sub-cavities. Here we demonstrate a new
method to optimize th... | [
{
"created": "Mon, 30 Mar 2020 03:28:26 GMT",
"version": "v1"
},
{
"created": "Mon, 21 Dec 2020 06:05:12 GMT",
"version": "v2"
}
] | 2020-12-22 | [
[
"Yamada",
"Rika",
""
],
[
"Enomoto",
"Yutaro",
""
],
[
"Nishizawa",
"Atsushi",
""
],
[
"Nagano",
"Koji",
""
],
[
"Kuroyanagi",
"Sachiko",
""
],
[
"Kokeyama",
"Keiko",
""
],
[
"Komori",
"Kentaro",
""
],
... | The quantum locking technique, which uses additional short low-loss sub-cavities, is effective in reducing quantum noise in space gravitational wave antenna DECIGO. However, the quantum noise of the main interferometer depends on the control systems in the sub-cavities. Here we demonstrate a new method to optimize the ... |
1305.4248 | Hristu Culetu | Hristu Culetu | Comment on "The entropy of a hole in spacetime" | 5 pages, no figures, extra arguments added, to be submitted to JHEP | null | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Balasubramanian, Czech, Chowdhury and de Boer \cite{BCCdB} studied a
"spherical Rindler space" and found that accelerating observers are causally
disconnected from a spherical region located at the origin of Minkowski space.
We show that there is no any horizon of size $R_{0}$ (which is related to the
chosen initial ... | [
{
"created": "Sat, 18 May 2013 10:33:03 GMT",
"version": "v1"
},
{
"created": "Fri, 6 Dec 2013 12:16:07 GMT",
"version": "v2"
}
] | 2013-12-09 | [
[
"Culetu",
"Hristu",
""
]
] | Balasubramanian, Czech, Chowdhury and de Boer \cite{BCCdB} studied a "spherical Rindler space" and found that accelerating observers are causally disconnected from a spherical region located at the origin of Minkowski space. We show that there is no any horizon of size $R_{0}$ (which is related to the chosen initial co... |
2302.05023 | Hengyu Xu | Hengyu Xu, Shao-Jun Zhang | Tachyonic Instability of Reissner-Nordstr\"{o}m-Melvin Black Holes in
Einstein-Maxwell-Scalar Theory | 16 pages, 15 figures. arXiv admin note: text overlap with
arXiv:2209.02268 | Nuclear Physics B 987 (2023) 116110 | 10.1016/j.nuclphysb.2023.116110 | null | gr-qc | http://creativecommons.org/publicdomain/zero/1.0/ | In the framework of Einstein-Maxwell-scalar theory, we studied scalar field
perturbations of Reissner-Nordstr\"{o}m-Melvin (RNM) black holes, which
describes the RN black holes immersed in a uniform magnetic field. Due to the
coupling to the Maxwell term, the scalar field acquires an effective mass whose
square, in t... | [
{
"created": "Fri, 10 Feb 2023 02:41:06 GMT",
"version": "v1"
}
] | 2023-02-13 | [
[
"Xu",
"Hengyu",
""
],
[
"Zhang",
"Shao-Jun",
""
]
] | In the framework of Einstein-Maxwell-scalar theory, we studied scalar field perturbations of Reissner-Nordstr\"{o}m-Melvin (RNM) black holes, which describes the RN black holes immersed in a uniform magnetic field. Due to the coupling to the Maxwell term, the scalar field acquires an effective mass whose square, in the... |
gr-qc/9301012 | Massimo Porrati | Massimo Porrati | Massive Spin-5/2 Fields Coupled to Gravity: Tree-Level Unitarity vs. the
Equivalence Principle | 6 pages, NYU-TH.93/01/01, (a misprint corrected, minor modifications
of the text) | Phys.Lett. B304 (1993) 77-80 | 10.1016/0370-2693(93)91403-A | null | gr-qc hep-th | null | I show that the gravitational scattering amplitudes of a spin-5/2 field with
mass $m\ll M_{Pl}$ violate tree-level unitarity at energies
$\sqrt{s}\approx\sqrt{mM_{Pl}}$ if the coupling to gravity is minimal.
Unitarity up to energies $\sqrt{s}\approx M_{Pl}$ is restored by adding a
suitable non-minimal term, which giv... | [
{
"created": "Thu, 14 Jan 1993 01:17:21 GMT",
"version": "v1"
},
{
"created": "Thu, 14 Jan 1993 17:15:02 GMT",
"version": "v2"
}
] | 2009-10-22 | [
[
"Porrati",
"Massimo",
""
]
] | I show that the gravitational scattering amplitudes of a spin-5/2 field with mass $m\ll M_{Pl}$ violate tree-level unitarity at energies $\sqrt{s}\approx\sqrt{mM_{Pl}}$ if the coupling to gravity is minimal. Unitarity up to energies $\sqrt{s}\approx M_{Pl}$ is restored by adding a suitable non-minimal term, which gives... |
gr-qc/0401060 | Gilberto Medeiros Kremer | G. M. Kremer | Brane cosmology with a van der Waals equation of state | 9 pages, 2 figures, to be published in General Relativity and
Gravitation | Gen.Rel.Grav. 36 (2004) 1423-1432 | 10.1023/B:GERG.0000022578.70873.6d | null | gr-qc | null | The evolution of a Universe confined onto a 3-brane embedded in a
five-dimensional space-time is investigated where the cosmological fluid on the
brane is modeled by the van der Waals equation of state. It is shown that the
Universe on the brane evolves in such a manner that three distinct periods
concerning its acce... | [
{
"created": "Wed, 14 Jan 2004 11:08:05 GMT",
"version": "v1"
}
] | 2009-11-10 | [
[
"Kremer",
"G. M.",
""
]
] | The evolution of a Universe confined onto a 3-brane embedded in a five-dimensional space-time is investigated where the cosmological fluid on the brane is modeled by the van der Waals equation of state. It is shown that the Universe on the brane evolves in such a manner that three distinct periods concerning its accele... |
2406.00190 | Raissa Costa Barroso | Raissa Costa Barroso, Yves Lemi\`ere, Fran\c{c}ois Mauger and Quentin
Baghi | Coronagraphic time-delay interferometry: characterization and updated
geometric properties | 15 pages, 13 figures | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The Laser Interferometer Space Antenna (LISA) will be a space-borne
gravitational wave (GW) detector to be launched in the next decade. Central to
LISA data analysis is time-delay interferometry (TDI), a numerical procedure
which drastically reduces otherwise overwhelming laser frequency noise. LISA
data analysis is ... | [
{
"created": "Fri, 31 May 2024 20:40:59 GMT",
"version": "v1"
}
] | 2024-06-04 | [
[
"Barroso",
"Raissa Costa",
""
],
[
"Lemière",
"Yves",
""
],
[
"Mauger",
"François",
""
],
[
"Baghi",
"Quentin",
""
]
] | The Laser Interferometer Space Antenna (LISA) will be a space-borne gravitational wave (GW) detector to be launched in the next decade. Central to LISA data analysis is time-delay interferometry (TDI), a numerical procedure which drastically reduces otherwise overwhelming laser frequency noise. LISA data analysis is us... |
1908.08188 | Avani Patel | Utkarsh Kumar, Sukanta Panda and Avani Patel | Geodetic Motion Around Rotating Blackhole in Nonlocal Gravity | 3 pages, 2 figures, submitted to XXIII DAE-BRNS High Energy Physics
Symposium Proceedings | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Recently the non-local gravity theory has come out to be a good candidate for
an effective field theory of quantum gravity and also it can provide rich
phenomenology to understand late-time accelerating expansion of the universe.
For any valid theory of gravity, it has to surmount solar system tests as well
as strong... | [
{
"created": "Wed, 21 Aug 2019 16:24:09 GMT",
"version": "v1"
}
] | 2019-08-23 | [
[
"Kumar",
"Utkarsh",
""
],
[
"Panda",
"Sukanta",
""
],
[
"Patel",
"Avani",
""
]
] | Recently the non-local gravity theory has come out to be a good candidate for an effective field theory of quantum gravity and also it can provide rich phenomenology to understand late-time accelerating expansion of the universe. For any valid theory of gravity, it has to surmount solar system tests as well as strong f... |
2305.00414 | Dao-Jun Liu | Rui-Xin Yang, Fei Xie, Dao-Jun Liu | Tidal Love numbers of a nonexotic compact object with a thin shell | 7 two-column pages, 3 figures; v2: typos corrected; v3: matching the
published version in PRD | null | 10.1103/PhysRevD.108.044014 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | As a possible alternative to black holes, horizonless compact objects have
significant implications for gravitational-wave physics. In this work, we
utilize the standard linearized theory of general relativity to calculate the
quadrupolar tidal Love numbers of a nonexotic compact object with a thin shell
proposed by ... | [
{
"created": "Sun, 30 Apr 2023 07:15:37 GMT",
"version": "v1"
},
{
"created": "Fri, 5 May 2023 06:08:42 GMT",
"version": "v2"
},
{
"created": "Mon, 7 Aug 2023 09:26:53 GMT",
"version": "v3"
}
] | 2023-08-08 | [
[
"Yang",
"Rui-Xin",
""
],
[
"Xie",
"Fei",
""
],
[
"Liu",
"Dao-Jun",
""
]
] | As a possible alternative to black holes, horizonless compact objects have significant implications for gravitational-wave physics. In this work, we utilize the standard linearized theory of general relativity to calculate the quadrupolar tidal Love numbers of a nonexotic compact object with a thin shell proposed by Ro... |
2011.06010 | Ken Ng | Ken K. Y. Ng, Salvatore Vitale, Otto A. Hannuksela, Tjonnie G. F. Li | Constraints on ultralight scalar bosons within black hole spin
measurements from LIGO-Virgo's GWTC-2 | 5 pages, 2 figures, matched PRL version | Phys. Rev. Lett. 126, 151102 (2021) | 10.1103/PhysRevLett.126.151102 | null | gr-qc astro-ph.HE hep-ph | http://creativecommons.org/licenses/by/4.0/ | Clouds of ultralight bosons - such as axions - can form around a rapidly
spinning black hole, if the black hole radius is comparable to the bosons'
wavelength. The cloud rapidly extracts angular momentum from the black hole,
and reduces it to a characteristic value that depends on the boson's mass as
well as on the b... | [
{
"created": "Wed, 11 Nov 2020 19:00:35 GMT",
"version": "v1"
},
{
"created": "Sat, 17 Apr 2021 22:35:07 GMT",
"version": "v2"
}
] | 2021-04-20 | [
[
"Ng",
"Ken K. Y.",
""
],
[
"Vitale",
"Salvatore",
""
],
[
"Hannuksela",
"Otto A.",
""
],
[
"Li",
"Tjonnie G. F.",
""
]
] | Clouds of ultralight bosons - such as axions - can form around a rapidly spinning black hole, if the black hole radius is comparable to the bosons' wavelength. The cloud rapidly extracts angular momentum from the black hole, and reduces it to a characteristic value that depends on the boson's mass as well as on the bla... |
1106.3168 | Pac\^ome Delva Dr. | Pac\^ome Delva, Andrej Cadez, Uros Kostic and Sante Carloni | A relativistic and autonomous navigation satellite system | 4 pages, proceedings of the "Rencontres de Moriond", 2011 sessions in
La Thuile, Aosta valley, Italy | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A relativistic positioning system has been proposed by Bartolom\'e Coll in
2002. Since then, several group developed this topic with different approaches.
I will present a work done in collaboration with Ljubljana University and the
ESA Advanced Concepts Team. We developed a concept, Autonomous Basis of
Coordinates, ... | [
{
"created": "Thu, 16 Jun 2011 08:34:15 GMT",
"version": "v1"
},
{
"created": "Fri, 17 Jun 2011 10:38:48 GMT",
"version": "v2"
}
] | 2011-06-20 | [
[
"Delva",
"Pacôme",
""
],
[
"Cadez",
"Andrej",
""
],
[
"Kostic",
"Uros",
""
],
[
"Carloni",
"Sante",
""
]
] | A relativistic positioning system has been proposed by Bartolom\'e Coll in 2002. Since then, several group developed this topic with different approaches. I will present a work done in collaboration with Ljubljana University and the ESA Advanced Concepts Team. We developed a concept, Autonomous Basis of Coordinates, in... |
gr-qc/0610027 | Michel Leclerc | M. Leclerc | Modified Ostrogradski formulation of field theory | minor additions | null | null | null | gr-qc | null | We present a method for the Hamiltonian formulation of field theories that
are based on Lagrangians containing second derivatives. The new feature of our
formalism is that all four partial derivatives of the field variables are
initially considered as independent fields, in contrast to the conventional
Ostrogradski m... | [
{
"created": "Sat, 7 Oct 2006 06:17:18 GMT",
"version": "v1"
},
{
"created": "Tue, 19 Dec 2006 04:32:14 GMT",
"version": "v2"
},
{
"created": "Tue, 27 Feb 2007 19:26:42 GMT",
"version": "v3"
}
] | 2007-05-23 | [
[
"Leclerc",
"M.",
""
]
] | We present a method for the Hamiltonian formulation of field theories that are based on Lagrangians containing second derivatives. The new feature of our formalism is that all four partial derivatives of the field variables are initially considered as independent fields, in contrast to the conventional Ostrogradski met... |
0706.4474 | Nikodem Poplawski | Nikodem J. Poplawski | F(R) gravity in purely affine formulation | 7 pages; published version | Int.J.Mod.Phys.A23:1891-1901,2008 | 10.1142/S0217751X08039773 | null | gr-qc math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The purely affine, metric-affine and purely metric formulation of general
relativity are dynamically equivalent and the relation between them is
analogous to the Legendre relation between the Lagrangian and Hamiltonian
dynamics. We show that one cannot construct a dynamically equivalent, purely
affine Lagrangian from... | [
{
"created": "Fri, 29 Jun 2007 19:14:46 GMT",
"version": "v1"
},
{
"created": "Wed, 11 Jul 2007 06:10:27 GMT",
"version": "v2"
},
{
"created": "Fri, 4 Jul 2008 22:17:00 GMT",
"version": "v3"
}
] | 2014-11-18 | [
[
"Poplawski",
"Nikodem J.",
""
]
] | The purely affine, metric-affine and purely metric formulation of general relativity are dynamically equivalent and the relation between them is analogous to the Legendre relation between the Lagrangian and Hamiltonian dynamics. We show that one cannot construct a dynamically equivalent, purely affine Lagrangian from a... |
2104.00074 | Mostafizur Rahman | Mostafizur Rahman and Arpan Bhattacharyya | Ringdown of Charged Compact Objects using Membrane Paradigm | 18 pages, 7 Figures, two new sections added, minor improvements;
Accepted for publication in PRD | Phys. Rev. D 104, 044045 (2021) | 10.1103/PhysRevD.104.044045 | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | Although the black holes are an integral part of the standard model of
astrophysics and cosmology, their existence poses some serious fundamental
problems. In recent years, several horizonless compact object models were
proposed to address those issues. As the gravitational wave detectors started
to observe more and ... | [
{
"created": "Wed, 31 Mar 2021 19:13:44 GMT",
"version": "v1"
},
{
"created": "Sun, 25 Jul 2021 17:59:24 GMT",
"version": "v2"
}
] | 2021-08-18 | [
[
"Rahman",
"Mostafizur",
""
],
[
"Bhattacharyya",
"Arpan",
""
]
] | Although the black holes are an integral part of the standard model of astrophysics and cosmology, their existence poses some serious fundamental problems. In recent years, several horizonless compact object models were proposed to address those issues. As the gravitational wave detectors started to observe more and mo... |
1404.2884 | Jorge Bellor\'in | Jorge Bellorin, Alvaro Restuccia and Adrian Sotomayor | Wormholes and naked singularities in the complete Horava theory | 31 pages, 4 figures. Version 2: Conclusions have been expanded and
other minor changes in wording. This version matches the one of PRD | Phys. Rev. D 90, 044009 (2014) | 10.1103/PhysRevD.90.044009 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We find the static spherically symmetric solutions (with vanishing shift
function) of the complete nonprojectable Horava theory explicitly, writing the
space-time metrics as explicit tensors in local coordinate systems. This
completes previous works of other authors that have studied the same
configurations. The solu... | [
{
"created": "Thu, 10 Apr 2014 17:38:01 GMT",
"version": "v1"
},
{
"created": "Thu, 21 Aug 2014 21:25:47 GMT",
"version": "v2"
}
] | 2014-08-25 | [
[
"Bellorin",
"Jorge",
""
],
[
"Restuccia",
"Alvaro",
""
],
[
"Sotomayor",
"Adrian",
""
]
] | We find the static spherically symmetric solutions (with vanishing shift function) of the complete nonprojectable Horava theory explicitly, writing the space-time metrics as explicit tensors in local coordinate systems. This completes previous works of other authors that have studied the same configurations. The soluti... |
gr-qc/0507077 | Wlodzimierz Piechocki | Przemyslaw Malkiewicz and Wlodzimierz Piechocki | Simple model of big-crunch/big-bang transition | 17 pages, no figures, RevTeX4, accepted for publication in Class.
Quantum Grav | Class.Quant.Grav.23:2963-2978,2006 | 10.1088/0264-9381/23/9/012 | null | gr-qc astro-ph hep-th | null | We present classical and quantum dynamics of a test particle in the
compactified Milne space. Background spacetime includes one compact space
dimension undergoing contraction to a point followed by expansion. Quantization
consists in finding a self-adjoint representation of the algebra of particle
observables. Our mo... | [
{
"created": "Mon, 18 Jul 2005 14:17:26 GMT",
"version": "v1"
},
{
"created": "Tue, 30 Aug 2005 15:30:35 GMT",
"version": "v2"
},
{
"created": "Thu, 22 Sep 2005 14:42:15 GMT",
"version": "v3"
},
{
"created": "Sat, 18 Feb 2006 07:15:56 GMT",
"version": "v4"
}
] | 2014-11-17 | [
[
"Malkiewicz",
"Przemyslaw",
""
],
[
"Piechocki",
"Wlodzimierz",
""
]
] | We present classical and quantum dynamics of a test particle in the compactified Milne space. Background spacetime includes one compact space dimension undergoing contraction to a point followed by expansion. Quantization consists in finding a self-adjoint representation of the algebra of particle observables. Our mode... |
2201.07600 | Roberto Oliveri | Martin Enriquez-Rojo, Till Heckelbacher, Roberto Oliveri | Asymptotic dynamics and charges for FLRW spacetimes | v1: 16+6 pages, 1 figure; v2: substantial improvements and
clarifications in the text. This version matches published version in PRD | null | 10.1103/PhysRevD.107.024039 | LMU-ASC 04/22 | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate the asymptotia of decelerating and spatially flat FLRW
spacetimes at future null infinity. We find that the asymptotic algebra of
diffeomorphisms can be enlarged to the recently discovered Weyl-BMS algebra for
asymptotically flat spacetimes by relaxing the boundary conditions. This
algebra remains unde... | [
{
"created": "Wed, 19 Jan 2022 14:01:10 GMT",
"version": "v1"
},
{
"created": "Wed, 8 Feb 2023 12:38:00 GMT",
"version": "v2"
}
] | 2023-02-09 | [
[
"Enriquez-Rojo",
"Martin",
""
],
[
"Heckelbacher",
"Till",
""
],
[
"Oliveri",
"Roberto",
""
]
] | We investigate the asymptotia of decelerating and spatially flat FLRW spacetimes at future null infinity. We find that the asymptotic algebra of diffeomorphisms can be enlarged to the recently discovered Weyl-BMS algebra for asymptotically flat spacetimes by relaxing the boundary conditions. This algebra remains undefo... |
2406.13189 | Tee How Loo | Hamid Shabani, Avik De and Tee-How Loo | The cosmological significance of boundary term in non-metricity gravity | 15 pages, 8 figures | null | null | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | Within the context of metric-affine gravity, we examine the significance of
the boundary term in symmetric teleparallel gravity by employing the
cosmological dynamical system analysis method. We focus on the novel gravity
models characterized by the functions $f(Q,C)$, where $f$ is a smooth function
of the non-metric... | [
{
"created": "Wed, 19 Jun 2024 03:37:58 GMT",
"version": "v1"
},
{
"created": "Sat, 13 Jul 2024 09:35:51 GMT",
"version": "v2"
}
] | 2024-07-16 | [
[
"Shabani",
"Hamid",
""
],
[
"De",
"Avik",
""
],
[
"Loo",
"Tee-How",
""
]
] | Within the context of metric-affine gravity, we examine the significance of the boundary term in symmetric teleparallel gravity by employing the cosmological dynamical system analysis method. We focus on the novel gravity models characterized by the functions $f(Q,C)$, where $f$ is a smooth function of the non-metricit... |
1907.01407 | Andre LeClair | Andr\'e LeClair | Early inflation based on an aboriginal black hole | version 2: references added and typos corrected | null | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | It has been recently proposed that the interior of a black hole is vacuum
energy, and this offers a possible explanation for the dark energy of the
current observable universe. In this article we explore the idea that black
holes are a source of vacuum energy in the early universe as well, and could
possibly explain ... | [
{
"created": "Mon, 1 Jul 2019 17:56:17 GMT",
"version": "v1"
},
{
"created": "Thu, 1 Aug 2019 18:26:43 GMT",
"version": "v2"
}
] | 2019-08-05 | [
[
"LeClair",
"André",
""
]
] | It has been recently proposed that the interior of a black hole is vacuum energy, and this offers a possible explanation for the dark energy of the current observable universe. In this article we explore the idea that black holes are a source of vacuum energy in the early universe as well, and could possibly explain ea... |
1003.0485 | Scott A. Hughes | Pranesh A. Sundararajan, Gaurav Khanna, and Scott A. Hughes | Binary black hole merger gravitational waves and recoil in the large
mass ratio limit | 15 pages, 5 figures. Submitted to Phys. Rev. D | Phys.Rev.D81:104009,2010 | 10.1103/PhysRevD.81.104009 | null | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Spectacular breakthroughs in numerical relativity now make it possible to
compute spacetime dynamics in almost complete generality, allowing us to model
the coalescence and merger of binary black holes with essentially no
approximations. The primary limitation of these calculations is now
computational. In particular... | [
{
"created": "Tue, 2 Mar 2010 01:02:53 GMT",
"version": "v1"
}
] | 2010-05-25 | [
[
"Sundararajan",
"Pranesh A.",
""
],
[
"Khanna",
"Gaurav",
""
],
[
"Hughes",
"Scott A.",
""
]
] | Spectacular breakthroughs in numerical relativity now make it possible to compute spacetime dynamics in almost complete generality, allowing us to model the coalescence and merger of binary black holes with essentially no approximations. The primary limitation of these calculations is now computational. In particular, ... |
1708.02941 | Daniel Johnson | Daniel Johnson, E. A. Huerta, and Roland Haas | Python Open Source Waveform Extractor (POWER): An open source, Python
package to monitor and post-process numerical relativity simulations | v2: minor corrections. Accepted to Classical and Quantum Gravity | Class. Quantum Grav. 35 027002, 2018 | 10.1088/1361-6382/aa9cad | null | gr-qc cs.CE physics.comp-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Numerical simulations of Einstein's field equations provide unique insights
into the physics of compact objects moving at relativistic speeds, and which
are driven by strong gravitational interactions. Numerical relativity has
played a key role to firmly establish gravitational wave astrophysics as a new
field of res... | [
{
"created": "Wed, 9 Aug 2017 18:00:00 GMT",
"version": "v1"
},
{
"created": "Mon, 27 Nov 2017 17:52:41 GMT",
"version": "v2"
}
] | 2018-07-09 | [
[
"Johnson",
"Daniel",
""
],
[
"Huerta",
"E. A.",
""
],
[
"Haas",
"Roland",
""
]
] | Numerical simulations of Einstein's field equations provide unique insights into the physics of compact objects moving at relativistic speeds, and which are driven by strong gravitational interactions. Numerical relativity has played a key role to firmly establish gravitational wave astrophysics as a new field of resea... |
1405.3197 | Timothy Clifton | Timothy Clifton | The Method of Images in Cosmology | 31 pages, 18 figures | Class. Quantum Grav. 31 (2014) 175010 | 10.1088/0264-9381/31/17/175010 | null | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We apply the method of images to the exact initial data for cosmological
models that contain a number of regularly arranged discrete masses. This allows
us to join cosmological regions together by throats, and to construct wormholes
in the initial data. These wormholes allow for the removal of the
asymptotically flat... | [
{
"created": "Tue, 13 May 2014 15:48:27 GMT",
"version": "v1"
},
{
"created": "Thu, 14 Aug 2014 15:56:52 GMT",
"version": "v2"
}
] | 2015-06-19 | [
[
"Clifton",
"Timothy",
""
]
] | We apply the method of images to the exact initial data for cosmological models that contain a number of regularly arranged discrete masses. This allows us to join cosmological regions together by throats, and to construct wormholes in the initial data. These wormholes allow for the removal of the asymptotically flat "... |
2305.14444 | Valerio De Luca | Valerio De Luca, Justin Khoury, Sam S. C. Wong | Non-linearities in the tidal Love numbers of black holes | 30 pages. v2: matching version published in PRD | null | 10.1103/PhysRevD.108.024048 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Tidal Love numbers describe the linear response of a compact object under the
presence of external tidal perturbations, and they are found to vanish exactly
for black holes within General Relativity. In this paper we investigate the
tidal deformability of neutral black holes when non-linearities in the theory
are tak... | [
{
"created": "Tue, 23 May 2023 18:09:46 GMT",
"version": "v1"
},
{
"created": "Thu, 13 Jul 2023 16:02:13 GMT",
"version": "v2"
}
] | 2023-08-02 | [
[
"De Luca",
"Valerio",
""
],
[
"Khoury",
"Justin",
""
],
[
"Wong",
"Sam S. C.",
""
]
] | Tidal Love numbers describe the linear response of a compact object under the presence of external tidal perturbations, and they are found to vanish exactly for black holes within General Relativity. In this paper we investigate the tidal deformability of neutral black holes when non-linearities in the theory are taken... |
2303.09563 | Mostafa Bousder Mr | M. Bousder, E. Salmani, A. El Fatimy and H. Ez-Zahraouy | Holographic dark energy satisfying the energy conditions in Lovelock
gravity | 16 pages, 2 figures | null | 10.1016/j.aop.2023.169282 | null | gr-qc astro-ph.HE hep-th | http://creativecommons.org/licenses/by/4.0/ | In this paper, we show that the holographic dark energy density hides in the
solutions of Lovelock gravity for black holes. Using the obtained mass and
temperature we find density equations. We propose a physical interpretation of
the rescaled Lovelock couplings as a topological mass that describes the
Lovelock branc... | [
{
"created": "Thu, 16 Mar 2023 15:14:54 GMT",
"version": "v1"
}
] | 2023-03-20 | [
[
"Bousder",
"M.",
""
],
[
"Salmani",
"E.",
""
],
[
"Fatimy",
"A. El",
""
],
[
"Ez-Zahraouy",
"H.",
""
]
] | In this paper, we show that the holographic dark energy density hides in the solutions of Lovelock gravity for black holes. Using the obtained mass and temperature we find density equations. We propose a physical interpretation of the rescaled Lovelock couplings as a topological mass that describes the Lovelock branch.... |
gr-qc/0403083 | Makoto Narita | Makoto Narita | Global properties of higher-dimensional cosmological spacetimes | null | Class.Quant.Grav. 21 (2004) 2071-2088 | 10.1088/0264-9381/21/8/011 | AEI-2004-026 | gr-qc hep-th math-ph math.AP math.MP | null | We study global existence problems and asymptotic behavior of
higher-dimensional inhomogeneous spacetimes with a compact Cauchy surface in
the Einstein-Maxwell-dilaton (EMD) system. Spacelike $T^{D-2}$-symmetry is
assumed, where $D\geq 4$ is spacetime dimension. The system of the evolution
equations of the EMD equati... | [
{
"created": "Fri, 19 Mar 2004 09:12:22 GMT",
"version": "v1"
}
] | 2009-11-10 | [
[
"Narita",
"Makoto",
""
]
] | We study global existence problems and asymptotic behavior of higher-dimensional inhomogeneous spacetimes with a compact Cauchy surface in the Einstein-Maxwell-dilaton (EMD) system. Spacelike $T^{D-2}$-symmetry is assumed, where $D\geq 4$ is spacetime dimension. The system of the evolution equations of the EMD equation... |
1504.08201 | Salah Haouat | S. Haouat and R. Chekireb | Effect of the electric field on the creation of fermions in de-Sitter
space-time | arXiv admin note: substantial text overlap with arXiv:1207.4342 | null | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The effect of the electric field on the creation of spin 1/2 particles from
vacuum in the (1+1) dimensional de-Sitter space-time is studied. The Dirac
equation with a constant electric field is solved by introducing an unitary
transformation. Then the canonical method based on Bogoliubov transformation is
applied to ... | [
{
"created": "Thu, 30 Apr 2015 12:54:41 GMT",
"version": "v1"
}
] | 2015-05-01 | [
[
"Haouat",
"S.",
""
],
[
"Chekireb",
"R.",
""
]
] | The effect of the electric field on the creation of spin 1/2 particles from vacuum in the (1+1) dimensional de-Sitter space-time is studied. The Dirac equation with a constant electric field is solved by introducing an unitary transformation. Then the canonical method based on Bogoliubov transformation is applied to ca... |
2204.04966 | Alessandro Zuccotti | Alfio Bonanno, Samuele Silveravalle, Alessandro Zuccotti | Non-symmetric wormholes and localized Big Rip singularities in
Einstein-Weyl gravity | 11 pages, 5 figures | Phys.Rev.D 105 (2022) 12, 124059 | 10.1103/PhysRevD.105.124059 | null | gr-qc hep-th | http://creativecommons.org/licenses/by/4.0/ | The inclusion of the Weyl squared term in the gravitational action is one of
the most simple, yet non trivial modifications to General Relativity at high
energies. Nevertheless the study of the spherically-symmetric vacuum solutions
of this theory has received much attention only in recent times. A new type of
asympt... | [
{
"created": "Mon, 11 Apr 2022 09:34:03 GMT",
"version": "v1"
}
] | 2022-06-29 | [
[
"Bonanno",
"Alfio",
""
],
[
"Silveravalle",
"Samuele",
""
],
[
"Zuccotti",
"Alessandro",
""
]
] | The inclusion of the Weyl squared term in the gravitational action is one of the most simple, yet non trivial modifications to General Relativity at high energies. Nevertheless the study of the spherically-symmetric vacuum solutions of this theory has received much attention only in recent times. A new type of asymptot... |
2301.00210 | Joaquin Estevez Delgado | Gabino Estevez-Delgado, Joaquin Estevez-Delgado, Modesto Pineda Duran
and Arthur Cleary-Balderas | A regular interior solution of Einstein field equations | 15 pages, 6 figures | null | null | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | Starting from the solution of the Einstein field equations in a static and
spherically symmetric spacetime which contains an isotropic fluid, we construct
a model to represent the interior of compact objects with compactness rate
$u=\frac{GM}{c^2R}<0.23577$. The solution is obtained by imposing the isotropy
condition... | [
{
"created": "Sat, 31 Dec 2022 14:54:51 GMT",
"version": "v1"
}
] | 2023-01-03 | [
[
"Estevez-Delgado",
"Gabino",
""
],
[
"Estevez-Delgado",
"Joaquin",
""
],
[
"Duran",
"Modesto Pineda",
""
],
[
"Cleary-Balderas",
"Arthur",
""
]
] | Starting from the solution of the Einstein field equations in a static and spherically symmetric spacetime which contains an isotropic fluid, we construct a model to represent the interior of compact objects with compactness rate $u=\frac{GM}{c^2R}<0.23577$. The solution is obtained by imposing the isotropy condition f... |
1703.10274 | Ward Struyve | Ward Struyve | Loop quantum cosmology and singularities | 17 pages, no figures, LaTeX; v2 minor improvements | Sci. Rep. 7, 8161 (2017) | 10.1038/s41598-017-06616-y | null | gr-qc quant-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Loop quantum gravity is believed to eliminate singularities such as the big
bang and big crunch singularity. This belief is based on studies of so-called
loop quantum cosmology which concerns symmetry-reduced models of quantum
gravity. In this paper, the problem of singularities is analysed in the context
of the Bohm... | [
{
"created": "Thu, 30 Mar 2017 00:05:46 GMT",
"version": "v1"
},
{
"created": "Sun, 10 Sep 2017 20:28:33 GMT",
"version": "v2"
}
] | 2017-09-12 | [
[
"Struyve",
"Ward",
""
]
] | Loop quantum gravity is believed to eliminate singularities such as the big bang and big crunch singularity. This belief is based on studies of so-called loop quantum cosmology which concerns symmetry-reduced models of quantum gravity. In this paper, the problem of singularities is analysed in the context of the Bohmia... |
gr-qc/0007076 | Tatyana P. Shestakova | V. A. Savchenko, T. P. Shestakova and G. M. Vereshkov | The exact cosmological solution to the dynamical equations for the
Bianchi IX model | LaTeX, 14 pages, to be published in Int. J. Mod. Phys. A | Int.J.Mod.Phys. A15 (2000) 3207-3220 | 10.1142/S0217751X00001804 | null | gr-qc | null | Quantum geometrodynamics in extended phase space describes phenomenologically
the integrated system ``a physical object + observation means (a gravitational
vacuum condensate)''. The central place in this version of QGD belongs to the
Schrodinger equation for a wave function of the Universe. An exact solution to
the ... | [
{
"created": "Fri, 28 Jul 2000 10:41:59 GMT",
"version": "v1"
}
] | 2016-12-28 | [
[
"Savchenko",
"V. A.",
""
],
[
"Shestakova",
"T. P.",
""
],
[
"Vereshkov",
"G. M.",
""
]
] | Quantum geometrodynamics in extended phase space describes phenomenologically the integrated system ``a physical object + observation means (a gravitational vacuum condensate)''. The central place in this version of QGD belongs to the Schrodinger equation for a wave function of the Universe. An exact solution to the ``... |
1801.07146 | Hristu Culetu | Hristu Culetu | Black hole interior in Painleve-Gullstrand coordinates | 7 pages, no figures | null | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A nonstatic Schwarzschild black hole interior solution in Painleve-Gullstrand
coordinates is proposed in this paper, by means of a coordinate transformation
that changes the spatial coordinate but the timelike one is preserved. The
timelike and null geodesic equations are obtained exactly, taking advantage
that the s... | [
{
"created": "Tue, 16 Jan 2018 21:24:50 GMT",
"version": "v1"
}
] | 2018-01-23 | [
[
"Culetu",
"Hristu",
""
]
] | A nonstatic Schwarzschild black hole interior solution in Painleve-Gullstrand coordinates is proposed in this paper, by means of a coordinate transformation that changes the spatial coordinate but the timelike one is preserved. The timelike and null geodesic equations are obtained exactly, taking advantage that the spa... |
1201.1821 | Yousef Bisabr | Yousef Bisabr (Farzan-Nahad) | Coincidence Problem and Holographic $f(R)$ Gravity in Spatially flat and
Curved Universes | 9 pages, To appear in Gravitation and Cosmology | Grav. Cosmol. 18, 151 (2012) | 10.1134/S0202289312020041 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The $f(R)$ gravity models formulated in Einstein conformal frame are
equivalent to Einstein gravity together with a minimally coupled scalar field.
The scalar field couples with the matter sector and the coupling term is given
by the conformal factor. We apply the holographic principle to such an
interacting model in... | [
{
"created": "Mon, 9 Jan 2012 16:18:00 GMT",
"version": "v1"
}
] | 2012-07-24 | [
[
"Bisabr",
"Yousef",
"",
"Farzan-Nahad"
]
] | The $f(R)$ gravity models formulated in Einstein conformal frame are equivalent to Einstein gravity together with a minimally coupled scalar field. The scalar field couples with the matter sector and the coupling term is given by the conformal factor. We apply the holographic principle to such an interacting model in s... |
1807.00683 | Wu Bofeng | Bofeng Wu and Chao-Guang Huang | Multipole analysis for linearized $f(R,\mathcal{G})$ gravity with
irreducible Cartesian tensors | 21 pages,0 figures. arXiv admin note: text overlap with
arXiv:1801.06931, arXiv:1801.01209 | Eur. Phys. J. C 79, 519 (2019) | 10.1140/epjc/s10052-019-6992-0 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The field equations of $f(R,\mathcal{G})$ gravity are rewritten in the form
of obvious wave equations with the stress-energy pseudotensor of the matter
fields and the gravitational field, as their sources, under the de Donder
condition. The linearized field equations of $f(R,\mathcal{G})$ gravity are the
same as thos... | [
{
"created": "Fri, 29 Jun 2018 01:47:12 GMT",
"version": "v1"
}
] | 2019-12-04 | [
[
"Wu",
"Bofeng",
""
],
[
"Huang",
"Chao-Guang",
""
]
] | The field equations of $f(R,\mathcal{G})$ gravity are rewritten in the form of obvious wave equations with the stress-energy pseudotensor of the matter fields and the gravitational field, as their sources, under the de Donder condition. The linearized field equations of $f(R,\mathcal{G})$ gravity are the same as those ... |
gr-qc/0304016 | David Delphenich | D. H. Delphenich | Spacetime G-structures I: Topological Defects | 32 pages | null | null | null | gr-qc | null | The notion of G-structure is defined and various geometrical and topological
aspects of such structures are discussed. A particular chain of subgroups in
the affine group for Minkowski space is chosen and the canonical geometrical
and topological objects that are asssociated with each reduction of the bundle
of affin... | [
{
"created": "Wed, 2 Apr 2003 21:42:40 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Delphenich",
"D. H.",
""
]
] | The notion of G-structure is defined and various geometrical and topological aspects of such structures are discussed. A particular chain of subgroups in the affine group for Minkowski space is chosen and the canonical geometrical and topological objects that are asssociated with each reduction of the bundle of affine ... |
2202.11522 | Tomi Koivisto | Tomi Koivisto | Energy in the Relativistic Theory of Gravity | 7 pages; contribution to the Special Issue of the International
Journal of Geometric Methods in Modern Physics dedicated to the conference
Geometric Foundations of Gravity in Tartu 2021 | null | 10.1142/S0219887822400072 | null | gr-qc physics.hist-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The more precise definition and the more fundamental understanding of the
concepts of time, energy, entropy and information are building upon the new,
relativistic foundation of gravity. This lecture is an attempt to explain the
basic principles that underpin this progress, by focusing on the simple but
subtle univer... | [
{
"created": "Mon, 21 Feb 2022 17:09:42 GMT",
"version": "v1"
}
] | 2023-11-17 | [
[
"Koivisto",
"Tomi",
""
]
] | The more precise definition and the more fundamental understanding of the concepts of time, energy, entropy and information are building upon the new, relativistic foundation of gravity. This lecture is an attempt to explain the basic principles that underpin this progress, by focusing on the simple but subtle universa... |
gr-qc/0109063 | T. Damour | Thibault Damour | Questioning the Equivalence Principle | 14 pages, contribution to the ONERA workshop on "Missions spatiales
en physique fondamentale" (Chatillon, 18-19 Jan 2001), to appear in a special
issue of the Comptes Rendus de l'Academie des Sciences (Paris), edited by C.
Borde and P. Touboul | null | 10.1016/S1296-2147(01)01272-0 | null | gr-qc | null | The Equivalence Principle (EP) is not one of the ``universal'' principles of
physics (like the Action Principle). It is a heuristic hypothesis which was
introduced by Einstein in 1907, and used by him to construct his theory of
General Relativity. In modern language, the (Einsteinian) EP consists in
assuming that the... | [
{
"created": "Wed, 19 Sep 2001 10:56:04 GMT",
"version": "v1"
}
] | 2015-06-25 | [
[
"Damour",
"Thibault",
""
]
] | The Equivalence Principle (EP) is not one of the ``universal'' principles of physics (like the Action Principle). It is a heuristic hypothesis which was introduced by Einstein in 1907, and used by him to construct his theory of General Relativity. In modern language, the (Einsteinian) EP consists in assuming that the o... |
1611.03604 | Hang Liu | Hang Liu and Xin-he Meng | Thermodynamics of Schwarzschild-Beltrami-de Sitter Black Hole | six figures,19 pages, accepted by MPLA | Mod.Phys.Lett. A32 (2017) no.27, 1750146 | 10.1142/S0217732317501462 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper, we investigate the thermodynamical properties of
Schwarzschild-Beltrami-de Sitter black hole introduced by Mu-Lin Yan \textit{et
al.} in 2013 by introducing inertial Beltrami coordinates to traditional
non-inertial Schwarzschild-de Sitter metric which is the exact static spherical
symmetry solution of ... | [
{
"created": "Fri, 11 Nov 2016 08:05:05 GMT",
"version": "v1"
},
{
"created": "Wed, 5 Apr 2017 15:06:47 GMT",
"version": "v2"
},
{
"created": "Fri, 21 Jul 2017 02:09:01 GMT",
"version": "v3"
}
] | 2017-08-29 | [
[
"Liu",
"Hang",
""
],
[
"Meng",
"Xin-he",
""
]
] | In this paper, we investigate the thermodynamical properties of Schwarzschild-Beltrami-de Sitter black hole introduced by Mu-Lin Yan \textit{et al.} in 2013 by introducing inertial Beltrami coordinates to traditional non-inertial Schwarzschild-de Sitter metric which is the exact static spherical symmetry solution of Ei... |
2407.19702 | Shao-Wen Wei | Shan-Ping Wu, Shao-Wen Wei | Thermodynamics and phase transition of Bardeen-AdS-class black holes | 18 pages, 11 figures | null | null | null | gr-qc hep-th | http://creativecommons.org/licenses/by/4.0/ | In a generalized parameter space, regular black holes can be regarded as
non-singular solutions under specific parameters in Einstein gravity theory
coupled with non-linear electromagnetic fields. Following this concept, we
investigate the thermodynamic states and phase transitions of Bardeen-AdS-class
black holes, r... | [
{
"created": "Mon, 29 Jul 2024 04:50:43 GMT",
"version": "v1"
}
] | 2024-07-30 | [
[
"Wu",
"Shan-Ping",
""
],
[
"Wei",
"Shao-Wen",
""
]
] | In a generalized parameter space, regular black holes can be regarded as non-singular solutions under specific parameters in Einstein gravity theory coupled with non-linear electromagnetic fields. Following this concept, we investigate the thermodynamic states and phase transitions of Bardeen-AdS-class black holes, rev... |
1612.09215 | Filipe Mena | Irene Brito, M. F. A. Da Silva, Filipe C. Mena and N. O. Santos | Geodesics dynamics in the Linet-Tian spacetime with Lambda>0 | 29 pages, 30 figures | Class. Quantum Grav., vol. 32 (2015) 185015 (26 pages) | 10.1088/0264-9381/32/18/185015 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We analyse the geodesics' dynamics in cylindrically symmetric vacuum
spacetimes with Lambda>0 and compare it to the Lambda=0 and Lambda<0 cases.
When Lambda>0 there are two singularities in the metric which brings new
qualitative features to the dynamics. We find that Lambda=0 planar timelike
confined geodesics are u... | [
{
"created": "Thu, 29 Dec 2016 17:48:12 GMT",
"version": "v1"
}
] | 2016-12-30 | [
[
"Brito",
"Irene",
""
],
[
"Da Silva",
"M. F. A.",
""
],
[
"Mena",
"Filipe C.",
""
],
[
"Santos",
"N. O.",
""
]
] | We analyse the geodesics' dynamics in cylindrically symmetric vacuum spacetimes with Lambda>0 and compare it to the Lambda=0 and Lambda<0 cases. When Lambda>0 there are two singularities in the metric which brings new qualitative features to the dynamics. We find that Lambda=0 planar timelike confined geodesics are uns... |
gr-qc/0512118 | Antoine Folacci | Yves D\'ecanini and Antoine Folacci | Hadamard renormalization of the stress-energy tensor for a quantized
scalar field in a general spacetime of arbitrary dimension | v1:16 pages - v2:26 pages | Phys.Rev.D78:044025,2008 | 10.1103/PhysRevD.78.044025 | null | gr-qc hep-th | null | We develop the Hadamard renormalization of the stress-energy tensor for a
massive scalar field theory defined on a general spacetime of arbitrary
dimension. Our formalism could be helpful in treating some aspects of the
quantum physics of extra spatial dimensions. More precisely, for spacetime
dimension up to six, we... | [
{
"created": "Tue, 20 Dec 2005 22:38:50 GMT",
"version": "v1"
},
{
"created": "Mon, 12 May 2008 09:20:59 GMT",
"version": "v2"
}
] | 2008-11-26 | [
[
"Décanini",
"Yves",
""
],
[
"Folacci",
"Antoine",
""
]
] | We develop the Hadamard renormalization of the stress-energy tensor for a massive scalar field theory defined on a general spacetime of arbitrary dimension. Our formalism could be helpful in treating some aspects of the quantum physics of extra spatial dimensions. More precisely, for spacetime dimension up to six, we e... |
gr-qc/9307024 | null | M.Gasperini and M.Giovannini | Quantum Squeezing and Cosmological Entropy Production | 7 pages, plain TEX, to appear in Class.Quantum Grav., CERN-TH.6954/93 | Class.Quant.Grav.10:L133-L136,1993 | 10.1088/0264-9381/10/9/004 | null | gr-qc astro-ph hep-th | null | The entropy growth in a cosmological process of pair production is completely
determined by the associated squeezing parameter, and is insensitive to the
number of particles in the initial state. The total produced entropy may
represent a significant fraction of the entropy stored today in the cosmic
black-body radia... | [
{
"created": "Tue, 20 Jul 1993 18:16:00 GMT",
"version": "v1"
}
] | 2010-04-06 | [
[
"Gasperini",
"M.",
""
],
[
"Giovannini",
"M.",
""
]
] | The entropy growth in a cosmological process of pair production is completely determined by the associated squeezing parameter, and is insensitive to the number of particles in the initial state. The total produced entropy may represent a significant fraction of the entropy stored today in the cosmic black-body radiati... |
2307.13611 | S Mahesh Chandran | S. Mahesh Chandran, Karthik Rajeev, S. Shankaranarayanan (IIT Bombay) | Real-space quantum-to-classical transition of time dependent background
fluctuations | Version 2: 45 pages, 9 figures, 1 Table. Improved plots and included
additional discussions. Results unchanged. Version accepted in Phys. Rev. D | null | 10.1103/PhysRevD.109.023503 | null | gr-qc astro-ph.CO hep-th quant-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Understanding the emergence of classical behavior from a quantum theory is
vital to establishing the quantum origin for the temperature fluctuations
observed in the Cosmic Microwave Background (CMB). We show that a real-space
approach can comprehensively address the quantum-to-classical transition
problem in the lead... | [
{
"created": "Tue, 25 Jul 2023 16:17:30 GMT",
"version": "v1"
},
{
"created": "Mon, 11 Dec 2023 14:45:28 GMT",
"version": "v2"
}
] | 2024-02-12 | [
[
"Chandran",
"S. Mahesh",
"",
"IIT Bombay"
],
[
"Rajeev",
"Karthik",
"",
"IIT Bombay"
],
[
"Shankaranarayanan",
"S.",
"",
"IIT Bombay"
]
] | Understanding the emergence of classical behavior from a quantum theory is vital to establishing the quantum origin for the temperature fluctuations observed in the Cosmic Microwave Background (CMB). We show that a real-space approach can comprehensively address the quantum-to-classical transition problem in the leadin... |
gr-qc/9412040 | Miguel Ortiz | Gilad Lifschytz, Samir D. Mathur and Miguel E. Ortiz | A Note on the Semi-Classical Approximation in Quantum Gravity | Latex with 3 figures. About 30 pages | Phys.Rev.D53:766-778,1996 | 10.1103/PhysRevD.53.766 | null | gr-qc hep-th | null | We re-examine the semiclassical approximation to quantum gravity in the
canonical formulation, focusing on the definition of a quasiclassical state for
the gravitational field. It is shown that a state with classical correlations
must be a superposition of states of the form $e^{iS}$. In terms of a reduced
phase spac... | [
{
"created": "Tue, 13 Dec 1994 16:45:31 GMT",
"version": "v1"
},
{
"created": "Tue, 20 Jun 1995 16:04:02 GMT",
"version": "v2"
},
{
"created": "Fri, 27 Oct 1995 14:02:17 GMT",
"version": "v3"
}
] | 2010-11-01 | [
[
"Lifschytz",
"Gilad",
""
],
[
"Mathur",
"Samir D.",
""
],
[
"Ortiz",
"Miguel E.",
""
]
] | We re-examine the semiclassical approximation to quantum gravity in the canonical formulation, focusing on the definition of a quasiclassical state for the gravitational field. It is shown that a state with classical correlations must be a superposition of states of the form $e^{iS}$. In terms of a reduced phase space ... |
gr-qc/9608019 | Bozhidar Z. Iliev | Bozhidar Z. Iliev (Inst. Nucl. Res. & Nucl. Energy, Sofia, Bulgaria) | Normal frames and the validity of the equivalence principle. I. Cases in
a neighborhood and at a point | LaTeX2e, 9 pages, to be published in Journal of Physics A:
Mathematical and General | J.Phys.A29:6895-6902,1996 | 10.1088/0305-4470/29/21/020 | null | gr-qc dg-ga math.DG | null | A treatment in a neighborhood and at a point of the equivalence principle on
the basis of derivations of the tensor algebra over a manifold is given.
Necessary and sufficient conditions are given for the existence of local bases,
called normal frames, in which the components of derivations vanish in a
neighborhood or... | [
{
"created": "Thu, 8 Aug 1996 09:47:24 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Iliev",
"Bozhidar Z.",
"",
"Inst. Nucl. Res. & Nucl. Energy, Sofia, Bulgaria"
]
] | A treatment in a neighborhood and at a point of the equivalence principle on the basis of derivations of the tensor algebra over a manifold is given. Necessary and sufficient conditions are given for the existence of local bases, called normal frames, in which the components of derivations vanish in a neighborhood or a... |
2404.13025 | Mahnaz Asghari | Mahnaz Asghari and Alireza Allahyari and David F. Mota | Gravitational wave probes of Barrow cosmology with LISA standard sirens | 26 pages, 5 figures | Journal of Cosmology and Astroparticle Physics (2024) | 10.1088/1475-7516/2024/06/044 | null | gr-qc astro-ph.CO | http://creativecommons.org/licenses/by/4.0/ | We study the Barrow cosmological model, which proposes that quantum gravity
effects create a complex, fractal structure for the universe's apparent
horizon. We leverage the thermodynamics - gravity conjecture. By applying the
Clausius relation to the apparent horizon of the Friedmann - Lema\^itre -
Robertson - Walker... | [
{
"created": "Fri, 19 Apr 2024 17:41:01 GMT",
"version": "v1"
},
{
"created": "Thu, 20 Jun 2024 13:25:02 GMT",
"version": "v2"
}
] | 2024-06-21 | [
[
"Asghari",
"Mahnaz",
""
],
[
"Allahyari",
"Alireza",
""
],
[
"Mota",
"David F.",
""
]
] | We study the Barrow cosmological model, which proposes that quantum gravity effects create a complex, fractal structure for the universe's apparent horizon. We leverage the thermodynamics - gravity conjecture. By applying the Clausius relation to the apparent horizon of the Friedmann - Lema\^itre - Robertson - Walker u... |
1906.06263 | Michael Ebersold | Michael Ebersold, Yannick Boetzel, Guillaume Faye, Chandra K. Mishra,
Bala R. Iyer, Philippe Jetzer | Gravitational-wave amplitudes for compact binaries in eccentric orbits
at the third post-Newtonian order: Memory contributions | 22 pages | Phys. Rev. D 100, 084043 (2019) | 10.1103/PhysRevD.100.084043 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We compute the non-linear memory contributions to the gravitational-wave
amplitudes for compact binaries in eccentric orbits at the third post-Newtonian
(3PN) order in general relativity. These contributions are hereditary in nature
as they are sourced by gravitational waves emitted during the binary's entire
dynamic... | [
{
"created": "Fri, 14 Jun 2019 16:00:46 GMT",
"version": "v1"
},
{
"created": "Mon, 21 Oct 2019 17:37:32 GMT",
"version": "v2"
}
] | 2019-10-22 | [
[
"Ebersold",
"Michael",
""
],
[
"Boetzel",
"Yannick",
""
],
[
"Faye",
"Guillaume",
""
],
[
"Mishra",
"Chandra K.",
""
],
[
"Iyer",
"Bala R.",
""
],
[
"Jetzer",
"Philippe",
""
]
] | We compute the non-linear memory contributions to the gravitational-wave amplitudes for compact binaries in eccentric orbits at the third post-Newtonian (3PN) order in general relativity. These contributions are hereditary in nature as they are sourced by gravitational waves emitted during the binary's entire dynamical... |
1303.6863 | Saskia Grunau | Saskia Grunau, Bhavesh Khamesra | Geodesic motion in the (rotating) black string spacetime | extended conclusion section, typos corrected | Phys. Rev. D 87, 124019 (2013) | 10.1103/PhysRevD.87.124019 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this article we study the geodesic motion of test particles and light in
the five-dimensional (rotating) black string spacetime. If a compact dimension
is added to the four-dimensional Schwarzschild or Kerr spacetime, the new
five-dimensional metric describes a (rotating) black string. The geodesics in
the Schwarz... | [
{
"created": "Wed, 27 Mar 2013 15:39:37 GMT",
"version": "v1"
},
{
"created": "Mon, 27 May 2013 14:33:21 GMT",
"version": "v2"
}
] | 2013-11-20 | [
[
"Grunau",
"Saskia",
""
],
[
"Khamesra",
"Bhavesh",
""
]
] | In this article we study the geodesic motion of test particles and light in the five-dimensional (rotating) black string spacetime. If a compact dimension is added to the four-dimensional Schwarzschild or Kerr spacetime, the new five-dimensional metric describes a (rotating) black string. The geodesics in the Schwarzsc... |
1304.5628 | Muxin Han | Muxin Han | Semiclassical Analysis of Spinfoam Model with a Small Barbero-Immirzi
Parameter | 21 pages, 2 figures | Phys. Rev. D 88 (2013) 044051 | 10.1103/PhysRevD.88.044051 | null | gr-qc hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the semiclassical behavior of Lorentzian
Engle-Pereira-Rovelli-Livine (EPRL) spinfoam model, by taking into account of
the sum over spins in the large spin regime. The large spin parameter \lambda
and small Barbero-Immirzi parameter \gamma are treated as two independent
parameters for the asymptotic expansio... | [
{
"created": "Sat, 20 Apr 2013 12:38:17 GMT",
"version": "v1"
},
{
"created": "Sat, 15 Jun 2013 17:02:23 GMT",
"version": "v2"
}
] | 2013-09-09 | [
[
"Han",
"Muxin",
""
]
] | We study the semiclassical behavior of Lorentzian Engle-Pereira-Rovelli-Livine (EPRL) spinfoam model, by taking into account of the sum over spins in the large spin regime. The large spin parameter \lambda and small Barbero-Immirzi parameter \gamma are treated as two independent parameters for the asymptotic expansion ... |
2311.00736 | Vijaya Santhi M Prof. | M.Vijayasanthi, T.Chinnappalanaidu, S. Srivani Madhu | Viscous Ricci Dark Energy Cosmological Models in Brans-Dicke Theory | 32 pages, 18 figures | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The whole article deals with the analysis of the cosmic model of Ruban's
space-time in the context of a bulk viscosity impact in the form of Ricci dark
energy within the framework Brans-Dicke theory (Brans and Dicke, Phys. Rev.
124, 925 (1961)). We believe that outer space is filled with dark matter and
viscous Ricci... | [
{
"created": "Wed, 1 Nov 2023 13:15:51 GMT",
"version": "v1"
}
] | 2023-11-03 | [
[
"Vijayasanthi",
"M.",
""
],
[
"Chinnappalanaidu",
"T.",
""
],
[
"Madhu",
"S. Srivani",
""
]
] | The whole article deals with the analysis of the cosmic model of Ruban's space-time in the context of a bulk viscosity impact in the form of Ricci dark energy within the framework Brans-Dicke theory (Brans and Dicke, Phys. Rev. 124, 925 (1961)). We believe that outer space is filled with dark matter and viscous Ricci d... |
gr-qc/0605115 | D. Bar | D. Bar | Gravitational holography and trapped surfaces | 30 pages, 2 PS figures, 1 Table. Some misprints were corrected | Int.J.Theor.Phys.46:664-687,2007 | 10.1007/s10773-006-9232-y | null | gr-qc | null | We have previously discussed the characteristics of the gravitational waves
(GW) and have, theoretically, shown that, like the corresponding
electromagnetic (EM) waves, they also demonstrate, under certain conditions,
holographic properties. In this work we have expanded this discussion and show
that the assumed grav... | [
{
"created": "Fri, 19 May 2006 21:38:46 GMT",
"version": "v1"
},
{
"created": "Mon, 6 Aug 2007 20:01:34 GMT",
"version": "v2"
}
] | 2008-11-26 | [
[
"Bar",
"D.",
""
]
] | We have previously discussed the characteristics of the gravitational waves (GW) and have, theoretically, shown that, like the corresponding electromagnetic (EM) waves, they also demonstrate, under certain conditions, holographic properties. In this work we have expanded this discussion and show that the assumed gravit... |
2102.08450 | Stelios Karydas Mr | Stelios Karydas, Eleftherios Papantonopoulos and Emmanuel N. Saridakis | Successful Higgs inflation from combined nonminimal and derivative
couplings | Version 3 published in PRD, 16 pages, 5 figures. Replacecd initial
\alpha=7 combined model with \alpha=5, for demonstrative purposes. Added a
combined model with a polynomial GNMDC and a corresponding discussion, as
well as suggestive comments throughout. References added | Phys. Rev. D 104, 023530 (2021) | 10.1103/PhysRevD.104.023530 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We propose an inflationary scenario based on the concurrent presence of
non-minimal coupling (NMC) and generalized non-minimal derivative coupling
(GNMDC), in the context of Higgs inflation. The combined construction maintains
the advantages of the individual scenarios without sharing their disadvantages.
In particul... | [
{
"created": "Tue, 16 Feb 2021 21:01:35 GMT",
"version": "v1"
},
{
"created": "Tue, 23 Feb 2021 20:15:42 GMT",
"version": "v2"
},
{
"created": "Mon, 9 Aug 2021 06:48:20 GMT",
"version": "v3"
}
] | 2021-08-10 | [
[
"Karydas",
"Stelios",
""
],
[
"Papantonopoulos",
"Eleftherios",
""
],
[
"Saridakis",
"Emmanuel N.",
""
]
] | We propose an inflationary scenario based on the concurrent presence of non-minimal coupling (NMC) and generalized non-minimal derivative coupling (GNMDC), in the context of Higgs inflation. The combined construction maintains the advantages of the individual scenarios without sharing their disadvantages. In particular... |
1202.4422 | Jennie D'Ambroise | Jennie D'Ambroise, Floyd L. Williams | Parametric solution of certain nonlinear differential equations in
cosmology | null | Journal of Nonlinear Mathematical Physics 18, No. 2 (2011), pp.
269-278 | 10.1142/S140292511100143X | null | gr-qc math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We obtain in terms of the Weierstrass elliptic $\wp-$function, sigma
function, and zeta function an explicit parametrized solution of a particular
nonlinear, ordinary differential equation. This equation includes, in special
cases, equations that occur in the study of both homogeneous and inhomogeneous
cosmological m... | [
{
"created": "Mon, 20 Feb 2012 19:02:16 GMT",
"version": "v1"
}
] | 2015-06-04 | [
[
"D'Ambroise",
"Jennie",
""
],
[
"Williams",
"Floyd L.",
""
]
] | We obtain in terms of the Weierstrass elliptic $\wp-$function, sigma function, and zeta function an explicit parametrized solution of a particular nonlinear, ordinary differential equation. This equation includes, in special cases, equations that occur in the study of both homogeneous and inhomogeneous cosmological mod... |
2303.03974 | Yu Hao | Fang-Yu Li, Hao Yu, Jin Li, Lian-Fu Wei, Qing-Quan Jiang | Electromagnetic counterparts of high-frequency gravitational waves in a
rotating laboratory frame system and their detection | 31 pages, 8 figures, 1 table; minor change according to the published
version | Phys.Rev.D 108 (2023) 6, 065014 | 10.1103/PhysRevD.108.065014 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider the perturbative photon flows (PPFs, i.e., electromagnetic (EM)
counterparts) generated by the EM resonance response to high-frequency
gravitational waves (HFGWs) with additional polarization states in a rotating
laboratory frame system. It is found that when the propagating direction of
HFGWs and the sym... | [
{
"created": "Tue, 7 Mar 2023 15:21:00 GMT",
"version": "v1"
},
{
"created": "Tue, 28 Mar 2023 11:19:44 GMT",
"version": "v2"
},
{
"created": "Mon, 15 May 2023 09:48:03 GMT",
"version": "v3"
},
{
"created": "Tue, 24 Oct 2023 08:31:14 GMT",
"version": "v4"
}
] | 2023-10-25 | [
[
"Li",
"Fang-Yu",
""
],
[
"Yu",
"Hao",
""
],
[
"Li",
"Jin",
""
],
[
"Wei",
"Lian-Fu",
""
],
[
"Jiang",
"Qing-Quan",
""
]
] | We consider the perturbative photon flows (PPFs, i.e., electromagnetic (EM) counterparts) generated by the EM resonance response to high-frequency gravitational waves (HFGWs) with additional polarization states in a rotating laboratory frame system. It is found that when the propagating direction of HFGWs and the symme... |
gr-qc/9612040 | Carmen Chicone | Carmen Chicone, Bahram Mashhoon, David Retzloff | Evolutionary Dynamics While Trapped in Resonance: A Keplerian Binary
System Perturbed by Gravitational Radiation | REVTEX Style, Submitted | Class.Quant.Grav. 14 (1997) 1831-1850 | 10.1088/0264-9381/14/7/018 | null | gr-qc | null | The method of averaging is used to investigate the phenomenon of capture into
resonance for a model that describes a Keplerian binary system influenced by
radiation damping and external normally incident periodic gravitational
radiation. The dynamical evolution of the binary orbit while trapped in
resonance is elucid... | [
{
"created": "Mon, 16 Dec 1996 15:47:21 GMT",
"version": "v1"
}
] | 2009-10-28 | [
[
"Chicone",
"Carmen",
""
],
[
"Mashhoon",
"Bahram",
""
],
[
"Retzloff",
"David",
""
]
] | The method of averaging is used to investigate the phenomenon of capture into resonance for a model that describes a Keplerian binary system influenced by radiation damping and external normally incident periodic gravitational radiation. The dynamical evolution of the binary orbit while trapped in resonance is elucidat... |
1801.07894 | Daniela Pugliese Dr | D. Pugliese and Z. Stuchlik | Constraints on two accretion disks centered on the equatorial plane of a
Kerr SMBH | 18 pages, 5 figures multi-panels Proceedings of RAGtime 17-19:
Workshops on black holes and neutron stars, 17-19/23-26 Oct., 1-5 Nov.
2015/2016/2017, Opava, Czech Republic
http://proceedings.physics.cz/index.php/proceedings-of-ragtime-17-19 | null | null | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The possibility that two toroidal accretion configurations may be orbiting
around a~super--massive Kerr black hole has been addressed. Such tori may be
formed during different stages of the Kerr attractor accretion history. We
consider the relative rotation of the tori and the corotation or
counterrotation of a~singl... | [
{
"created": "Wed, 24 Jan 2018 08:07:04 GMT",
"version": "v1"
}
] | 2018-01-25 | [
[
"Pugliese",
"D.",
""
],
[
"Stuchlik",
"Z.",
""
]
] | The possibility that two toroidal accretion configurations may be orbiting around a~super--massive Kerr black hole has been addressed. Such tori may be formed during different stages of the Kerr attractor accretion history. We consider the relative rotation of the tori and the corotation or counterrotation of a~single ... |
2311.15866 | Denis Comelli | Denis Comelli | A space dependent Cosmological Constant | 33 pages | null | null | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | In a specific adiabatic perfect fluid, intrinsic entropy density
perturbations are the source of a {\it space dependent} cosmological constant
responsible for local void inhomogeneity. Assuming an anisotropic Locally
Rotationally Symmetric space time, using the 1+1+2 covariant approach and a
Lemaitre space time metri... | [
{
"created": "Mon, 27 Nov 2023 14:36:08 GMT",
"version": "v1"
},
{
"created": "Wed, 13 Mar 2024 14:50:43 GMT",
"version": "v2"
}
] | 2024-03-14 | [
[
"Comelli",
"Denis",
""
]
] | In a specific adiabatic perfect fluid, intrinsic entropy density perturbations are the source of a {\it space dependent} cosmological constant responsible for local void inhomogeneity. Assuming an anisotropic Locally Rotationally Symmetric space time, using the 1+1+2 covariant approach and a Lemaitre space time metric,... |
gr-qc/9401020 | null | Harald F. Muller and Christoph Schmid | Energy Fluctuations Generated by Inflation | 14 pages, no figures, AMS TeX, ETH--TH/93--15 | null | null | null | gr-qc | null | The energy density correlation function $C(x,y)=<\rho(x)\rho(y)>-<\rho>^2$
and its Fourier transform generated by the gravitational tidal forces of the
inflationary de Sitter expansion are derived for a massless or light ($m<<H$)
neutral scalar field $\Phi$ without self--interactions, minimally coupled to
gravity. Th... | [
{
"created": "Wed, 19 Jan 1994 14:26:00 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Muller",
"Harald F.",
""
],
[
"Schmid",
"Christoph",
""
]
] | The energy density correlation function $C(x,y)=<\rho(x)\rho(y)>-<\rho>^2$ and its Fourier transform generated by the gravitational tidal forces of the inflationary de Sitter expansion are derived for a massless or light ($m<<H$) neutral scalar field $\Phi$ without self--interactions, minimally coupled to gravity. The ... |
2109.10388 | Sandipan Sengupta | Sandipan Sengupta | 4D Einstein-Gauss-Bonnet Gravity From Non-Einsteinian Phase | 25 pages, Title changed, Minor revisions to match the journal version | JCAP 02 (2022) 020 | 10.1088/1475-7516/2022/02/020 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We set up an Einstein-Gauss-Bonnet theory in four dimensions, based on the
recent formulation of pure gravity with extra dimensions of vanishing metrical
length [1]. In absence of torsion, the effective field equations depend only on
the four-metric, reflecting a quadratic curvature nonlinearity but no higher
than se... | [
{
"created": "Tue, 21 Sep 2021 18:19:00 GMT",
"version": "v1"
},
{
"created": "Sun, 6 Feb 2022 16:23:34 GMT",
"version": "v2"
}
] | 2022-02-11 | [
[
"Sengupta",
"Sandipan",
""
]
] | We set up an Einstein-Gauss-Bonnet theory in four dimensions, based on the recent formulation of pure gravity with extra dimensions of vanishing metrical length [1]. In absence of torsion, the effective field equations depend only on the four-metric, reflecting a quadratic curvature nonlinearity but no higher than seco... |
1212.0416 | Saskia Grunau | Saskia Grunau, Valeria Kagramanova, Jutta Kunz | Geodesic Motion in the (Charged) Doubly Spinning Black Ring Spacetime | arXiv admin note: substantial text overlap with arXiv:1208.2548 | Phys. Rev. D 87, 044054 (2013) | 10.1103/PhysRevD.87.044054 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this article we analyze the geodesics of test particles and light in the
five dimensional (charged) doubly spinning black ring spacetime. Apparently it
is not possible to separate the Hamilton-Jacobi-equation for (charged) doubly
spinning black rings in general, so we concentrate on special cases: null
geodesics i... | [
{
"created": "Mon, 3 Dec 2012 15:29:08 GMT",
"version": "v1"
}
] | 2013-03-27 | [
[
"Grunau",
"Saskia",
""
],
[
"Kagramanova",
"Valeria",
""
],
[
"Kunz",
"Jutta",
""
]
] | In this article we analyze the geodesics of test particles and light in the five dimensional (charged) doubly spinning black ring spacetime. Apparently it is not possible to separate the Hamilton-Jacobi-equation for (charged) doubly spinning black rings in general, so we concentrate on special cases: null geodesics in ... |
1105.6099 | Valerio Marra | Valerio Marra, Mikko Paakkonen | Exact spherically-symmetric inhomogeneous model with n perfect fluids | 31 pages, 11 figures; matches version accepted for publication in
JCAP; added application to clustering dark energy, comparison with previous
work on exact solutions, and other minor improvements/references | JCAP01(2012)025 | 10.1088/1475-7516/2012/01/025 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present the exact equations governing the dynamics of a
spherically-symmetric inhomogeneous model with n decoupled and non-comoving
perfect fluids. Thanks to the use of physically meaningful quantities we write
the set of 3+2n equations in a concise and transparent way. The n perfect
fluids can have general equati... | [
{
"created": "Mon, 30 May 2011 20:00:05 GMT",
"version": "v1"
},
{
"created": "Tue, 6 Sep 2011 15:09:18 GMT",
"version": "v2"
},
{
"created": "Tue, 20 Dec 2011 09:07:12 GMT",
"version": "v3"
}
] | 2012-01-11 | [
[
"Marra",
"Valerio",
""
],
[
"Paakkonen",
"Mikko",
""
]
] | We present the exact equations governing the dynamics of a spherically-symmetric inhomogeneous model with n decoupled and non-comoving perfect fluids. Thanks to the use of physically meaningful quantities we write the set of 3+2n equations in a concise and transparent way. The n perfect fluids can have general equation... |
1206.1947 | Sina Khorasani | Sina Ataollah Khorasani | Deflection of Light and Shapiro Delay: An Equivalent Medium Theory
Approach | To appear in Proceedings of SPIE, vol. 8480 | Proc. SPIE 8480, The Nature of Light: Light in Nature IV, 848006
(October 11, 2012) | 10.1117/12.931026 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We discuss the deflection of light and Shapiro delay under the influence of
gravity as described by Schwarzschild metric. We obtain an exact expression
based on the coordinate velocity, as first set forth by Einstein, and present a
discussion on the effect of velocity anisotropy. We conclude that the
anisotropy in th... | [
{
"created": "Sat, 9 Jun 2012 15:27:19 GMT",
"version": "v1"
}
] | 2012-10-23 | [
[
"Khorasani",
"Sina Ataollah",
""
]
] | We discuss the deflection of light and Shapiro delay under the influence of gravity as described by Schwarzschild metric. We obtain an exact expression based on the coordinate velocity, as first set forth by Einstein, and present a discussion on the effect of velocity anisotropy. We conclude that the anisotropy in the ... |
2207.04373 | Huan Yang | Huan Yang, Liujun Zou | Renormalization-group Perspective on Gravitational Critical Collapse | 10 pages, 1 figure | Phys. Rev. D 109, 104034 (2024) | null | null | gr-qc cond-mat.quant-gas cond-mat.stat-mech cond-mat.str-el hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this work, we propose extremal black holes (BH) as critical points of a
new class of gravitational collapses. The conjecture is made by observing the
Continuous Self Similarity (CSS) and Discrete Self Similarity (DSS) behaviours
of perturbations of an extremal black hole spacetime and compare them to
similar prope... | [
{
"created": "Sun, 10 Jul 2022 03:38:45 GMT",
"version": "v1"
},
{
"created": "Thu, 4 Aug 2022 19:41:14 GMT",
"version": "v2"
},
{
"created": "Sat, 18 May 2024 10:34:50 GMT",
"version": "v3"
}
] | 2024-05-21 | [
[
"Yang",
"Huan",
""
],
[
"Zou",
"Liujun",
""
]
] | In this work, we propose extremal black holes (BH) as critical points of a new class of gravitational collapses. The conjecture is made by observing the Continuous Self Similarity (CSS) and Discrete Self Similarity (DSS) behaviours of perturbations of an extremal black hole spacetime and compare them to similar propert... |
2203.08998 | Maria Babiuc | Dillon Buskirk and Maria C. Babiuc Hamilton | Eccentric Pairs: Analytic Gravitational Waves from Binary Black Holes in
Elliptic Orbits | 27 pages, 10 figures, accepted for publication in the International
Journal of Modern Physics D | International Journal of Modern Physics D, Vol. 32, No. 02,
2250138 (2023) | 10.1142/S0218271822501383 | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | Gravitational waves (GW) from eccentric binaries have intricate signals
encoding important features about the location, creation and evolution of the
sources. Eccentricity shortens the merger time, making the emitted GW
statistically predominant in the observed data once detectors will reach the
required sensitivity.... | [
{
"created": "Thu, 17 Mar 2022 00:16:56 GMT",
"version": "v1"
},
{
"created": "Mon, 23 May 2022 21:01:04 GMT",
"version": "v2"
},
{
"created": "Thu, 15 Sep 2022 14:35:02 GMT",
"version": "v3"
},
{
"created": "Thu, 27 Oct 2022 18:23:33 GMT",
"version": "v4"
}
] | 2024-05-13 | [
[
"Buskirk",
"Dillon",
""
],
[
"Hamilton",
"Maria C. Babiuc",
""
]
] | Gravitational waves (GW) from eccentric binaries have intricate signals encoding important features about the location, creation and evolution of the sources. Eccentricity shortens the merger time, making the emitted GW statistically predominant in the observed data once detectors will reach the required sensitivity. W... |
gr-qc/9711054 | Nikolaos Batakis | Nikolaos A. Batakis | General relativity reformed to a genuine Yang-Mills gauge theory for
gravity | Latex, 8pp, no figures | null | null | null | gr-qc hep-th | null | The theory of general relativity is reformed to a genuine Yang-Mills gauge
theory of the Poincar\'e group for gravity. Several pathologies of the
conventional theory are thus removed, but not every GR vacuum satisfies the Y-M
equations. The sector of GR solutions which survive is fully classified and it
is found to i... | [
{
"created": "Tue, 18 Nov 1997 13:08:35 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Batakis",
"Nikolaos A.",
""
]
] | The theory of general relativity is reformed to a genuine Yang-Mills gauge theory of the Poincar\'e group for gravity. Several pathologies of the conventional theory are thus removed, but not every GR vacuum satisfies the Y-M equations. The sector of GR solutions which survive is fully classified and it is found to inc... |
2308.06536 | Tanisha Joshi | Tanisha Joshi | Entropy based Model Independent Diagnostic to Discriminate Dark Energy | null | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We propose utilizing entropy as a diagnostic tool to distinguish between
constant and dynamical dark energy models. Entropy, a measure of the system's
disorder or information content, captures the complexity and evolution of the
universe. By analyzing the entropy measure over cosmic time, we can uncover
distinct patt... | [
{
"created": "Sat, 12 Aug 2023 11:40:53 GMT",
"version": "v1"
}
] | 2023-08-15 | [
[
"Joshi",
"Tanisha",
""
]
] | We propose utilizing entropy as a diagnostic tool to distinguish between constant and dynamical dark energy models. Entropy, a measure of the system's disorder or information content, captures the complexity and evolution of the universe. By analyzing the entropy measure over cosmic time, we can uncover distinct patter... |
1904.00598 | Andreas G. A. Pithis | A. G. A. Pithis and M. Sakellariadou | Group field theory condensate cosmology: An appetizer | Review article as an invited contribution for the special issue
"Progress in Group Field Theory and Related Quantum Gravity Formalisms",
Universe journal | Universe 2019, 5(6) | 10.3390/universe5060147 | KCL-PH-TH/2019-41 | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | This contribution is an appetizer to the relatively young and fast evolving
approach to quantum cosmology based on group field theory condensate states. We
summarize the main assumptions and pillars of this approach which has revealed
new perspectives on the long-standing question of how to recover the continuum
from... | [
{
"created": "Mon, 1 Apr 2019 07:01:16 GMT",
"version": "v1"
},
{
"created": "Thu, 13 Jun 2019 07:54:03 GMT",
"version": "v2"
}
] | 2019-06-14 | [
[
"Pithis",
"A. G. A.",
""
],
[
"Sakellariadou",
"M.",
""
]
] | This contribution is an appetizer to the relatively young and fast evolving approach to quantum cosmology based on group field theory condensate states. We summarize the main assumptions and pillars of this approach which has revealed new perspectives on the long-standing question of how to recover the continuum from d... |
1505.02089 | Jorge Pullin | Jorge Pullin | The ADM papers and part of their modern legacy: loop quantum gravity | 7 pages, prepared for Classical and Quantum Gravity for its
"Milestones of General Relativity" focus issue to be published during the
Centenary Year of GR | null | 10.1088/0264-9381/32/12/124004 | LSU-REL-050815 | gr-qc hep-th quant-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present a summary for non-specialists of loop quantum gravity as part of
the modern legacy of the series of papers by Arnowitt, Deser and Misner circa
1960.
| [
{
"created": "Fri, 8 May 2015 16:18:58 GMT",
"version": "v1"
}
] | 2015-06-17 | [
[
"Pullin",
"Jorge",
""
]
] | We present a summary for non-specialists of loop quantum gravity as part of the modern legacy of the series of papers by Arnowitt, Deser and Misner circa 1960. |
2006.15764 | Gabriele Bozzola | Gabriele Bozzola and Vasileios Paschalidis | General relativistic simulations of the quasi-circular inspiral and
merger of charged black holes: GW150914 and fundamental physics implications | 10 pages (including Supplemental Material), 3 figures. Matches
published version | Phys. Rev. Lett. 126, 041103 (2021) | 10.1103/PhysRevLett.126.041103 | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We perform general-relativistic simulations of charged black holes targeting
GW150914. We show that the inspiral is most efficient for detecting black hole
charge through gravitational waves and that GW150914 is compatible with having
charge-to-mass ratio as high as 0.3. Our work applies to electric and magnetic
char... | [
{
"created": "Mon, 29 Jun 2020 01:03:42 GMT",
"version": "v1"
},
{
"created": "Wed, 27 Jan 2021 17:37:16 GMT",
"version": "v2"
}
] | 2021-02-03 | [
[
"Bozzola",
"Gabriele",
""
],
[
"Paschalidis",
"Vasileios",
""
]
] | We perform general-relativistic simulations of charged black holes targeting GW150914. We show that the inspiral is most efficient for detecting black hole charge through gravitational waves and that GW150914 is compatible with having charge-to-mass ratio as high as 0.3. Our work applies to electric and magnetic charge... |
1302.7037 | Tim Koslowski A | Tim Koslowski | Loop Quantization of Shape Dynamics | 3 pages, LaTeX, talk given at the 13th Marcel Grossmann Meeting,
Stockholm 1-7 July 2012 | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Loop Quantum Gravity (LQG) is a promising approach to quantum gravity, in
particular because it is based on a rigorous quantization of the kinematics of
gravity. A difficult and still open problem in the LQG program is the
construction of the physical Hilbert space for pure quantum gravity. This is
due to the complic... | [
{
"created": "Thu, 28 Feb 2013 00:03:05 GMT",
"version": "v1"
}
] | 2013-03-01 | [
[
"Koslowski",
"Tim",
""
]
] | Loop Quantum Gravity (LQG) is a promising approach to quantum gravity, in particular because it is based on a rigorous quantization of the kinematics of gravity. A difficult and still open problem in the LQG program is the construction of the physical Hilbert space for pure quantum gravity. This is due to the complicat... |
2201.01259 | Xiongjun Fang | Wentao Liu, Xiongjun Fang, Jiliang Jing and Anzhong Wang | Gauge Invariant Perturbations of General Spherically Symmetric
Spacetimes | 27 pages, Accepted for publication in Sci. China, Phys. Mech. Astron | Sci. China, Phys. Mech. Astron. 66(1): 210411 (2023) | 10.1007/s11433-022-1956-4 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper, the gauge choices in general spherically symmetric spacetimes
have been explored. We construct the gauge invariant variables and the master
equations for both the Detweiler easy gauge and the Regge-Wheeler gauge,
respectively. The particular cases for $l=0,1$ are also been investigated. Our
results pro... | [
{
"created": "Tue, 4 Jan 2022 17:43:16 GMT",
"version": "v1"
},
{
"created": "Fri, 7 Jan 2022 18:35:53 GMT",
"version": "v2"
},
{
"created": "Tue, 31 May 2022 03:44:44 GMT",
"version": "v3"
},
{
"created": "Wed, 19 Oct 2022 01:59:08 GMT",
"version": "v4"
}
] | 2022-10-20 | [
[
"Liu",
"Wentao",
""
],
[
"Fang",
"Xiongjun",
""
],
[
"Jing",
"Jiliang",
""
],
[
"Wang",
"Anzhong",
""
]
] | In this paper, the gauge choices in general spherically symmetric spacetimes have been explored. We construct the gauge invariant variables and the master equations for both the Detweiler easy gauge and the Regge-Wheeler gauge, respectively. The particular cases for $l=0,1$ are also been investigated. Our results provi... |
1206.5804 | Juan Pedraza | J. Ramos-Caro, C. A. Ag\'on, J. F. Pedraza | Kinetic Theory of Collisionless Self-Gravitating Gases: II. Relativistic
Corrections in Galactic Dynamics | 30 pages, 8 figures. v2: Minor corrections and references added.
Conclusions unchanged. v3: Version published in PRD | Phys.Rev.D86:043008,2012 | 10.1103/PhysRevD.86.043008 | UTTG-08-12; TCC-010-12 | gr-qc astro-ph.GA | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper we study the kinetic theory of many-particle astrophysical
systems imposing axial symmetry and extending our previous analysis in Phys.
Rev. D 83, 123007 (2011). Starting from a Newtonian model describing a
collisionless self-gravitating gas, we develop a framework to include
systematically the first ge... | [
{
"created": "Mon, 25 Jun 2012 20:00:03 GMT",
"version": "v1"
},
{
"created": "Wed, 25 Jul 2012 18:01:47 GMT",
"version": "v2"
},
{
"created": "Mon, 20 Aug 2012 15:54:46 GMT",
"version": "v3"
}
] | 2012-08-23 | [
[
"Ramos-Caro",
"J.",
""
],
[
"Agón",
"C. A.",
""
],
[
"Pedraza",
"J. F.",
""
]
] | In this paper we study the kinetic theory of many-particle astrophysical systems imposing axial symmetry and extending our previous analysis in Phys. Rev. D 83, 123007 (2011). Starting from a Newtonian model describing a collisionless self-gravitating gas, we develop a framework to include systematically the first gene... |
gr-qc/9906085 | Garcia | L.C.Garcia de Andrade | On dilaton solutions of de Sitter inflation and primordial spin-torsion
density fluctuations | Latex file 10K | Phys.Lett. B468 (1999) 28-30 | 10.1016/S0370-2693(99)01197-1 | null | gr-qc | null | Four classes of exact solutions of Einstein-Cartan dilatonic inflationary de
Sitter cosmology are given.The first is obtained from the equation of state of
massless dilaton instead of an unpolarized fermion fluid used previously by
Gasperini.Repulsive gravity is found in the case where dilatons are constraint
by the ... | [
{
"created": "Sat, 19 Jun 1999 23:10:00 GMT",
"version": "v1"
}
] | 2009-10-31 | [
[
"de Andrade",
"L. C. Garcia",
""
]
] | Four classes of exact solutions of Einstein-Cartan dilatonic inflationary de Sitter cosmology are given.The first is obtained from the equation of state of massless dilaton instead of an unpolarized fermion fluid used previously by Gasperini.Repulsive gravity is found in the case where dilatons are constraint by the pr... |
2209.14595 | Pardyumn Kumar Sahoo | Oleksii Sokoliuk, Alexander Baransky, P.K. Sahoo | Compact stars admitting Finch-Skea symmetry in the presence of various
matter fields | Chinese Physics C published version | Chinese Physics C 47(1) (2023) 015104 | 10.1088/1674-1137/ac9603 | null | gr-qc hep-th | http://creativecommons.org/licenses/by/4.0/ | In the present article authors investigate the anisotropic stellar solutions
admitting Finch-Skea symmetry (viable and non-singular metric potentials) in
the presence of some exotic matter fields, such as: Bose-Einstein Condensate
(BEC) dark matter, Kalb-Ramond fully anisotropic rank-2 tensor field from the
low-energ... | [
{
"created": "Thu, 29 Sep 2022 07:26:21 GMT",
"version": "v1"
}
] | 2022-11-04 | [
[
"Sokoliuk",
"Oleksii",
""
],
[
"Baransky",
"Alexander",
""
],
[
"Sahoo",
"P. K.",
""
]
] | In the present article authors investigate the anisotropic stellar solutions admitting Finch-Skea symmetry (viable and non-singular metric potentials) in the presence of some exotic matter fields, such as: Bose-Einstein Condensate (BEC) dark matter, Kalb-Ramond fully anisotropic rank-2 tensor field from the low-energy ... |
gr-qc/0602090 | Andrzej Krasi\'nski | Andrzej Krasinski and Krzysztof Bolejko (N. Copernicus Astronomical
Center, Polish Academy of Sciences) | Avoidance of singularities in spherically symmetric charged dust | 36 pages, 15 Postscript figures, AMSTex. Correction of of a basic
error in the example in Sec. 11 + resulting modifications in Secs. 11 and 12.
Published in Phys. Rev. D73, 124033 (2006) without the corrections | Phys.Rev.D73:124033,2006; Erratum-ibid.D75:069904,2007 | 10.1103/PhysRevD.73.124033 10.1103/PhysRevD.75.069904 | null | gr-qc | null | In spherically symmetric charged dust, just like in electrically neutral
dust, two kinds of singularity may be present: the Big Bang/Crunch (BB/BC)
singularity, and shell crossings. Quite unlike in neutral dust, the BB/BC
singularity may be avoided. When the absolute value of the charge density r is
everywhere small ... | [
{
"created": "Wed, 22 Feb 2006 16:52:20 GMT",
"version": "v1"
},
{
"created": "Tue, 28 Mar 2006 15:14:00 GMT",
"version": "v2"
},
{
"created": "Mon, 12 Jun 2006 12:31:41 GMT",
"version": "v3"
},
{
"created": "Mon, 26 Feb 2007 13:30:47 GMT",
"version": "v4"
}
] | 2014-11-17 | [
[
"Krasinski",
"Andrzej",
"",
"N. Copernicus Astronomical\n Center, Polish Academy of Sciences"
],
[
"Bolejko",
"Krzysztof",
"",
"N. Copernicus Astronomical\n Center, Polish Academy of Sciences"
]
] | In spherically symmetric charged dust, just like in electrically neutral dust, two kinds of singularity may be present: the Big Bang/Crunch (BB/BC) singularity, and shell crossings. Quite unlike in neutral dust, the BB/BC singularity may be avoided. When the absolute value of the charge density r is everywhere small co... |
2307.09234 | Hongying Guo | Hongying Guo | Gravitational Faraday rotation of light propagation in the
Kerr-Newman-Taub-NUT space-time | null | Eur. Phys. J. Plus 139, 328 (2024) | 10.1140/epjp/s13360-024-05139-6 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate the gravitational Faraday effect in the Kerr-Newman-Taub-NUT
space-time under the weak deflection limit. Contrary to previously stated zero
net effect when the source and the observer are remote from the black hole, a
non-zero Faraday rotation has been found. The rotation angle is dependent on
the spin... | [
{
"created": "Tue, 18 Jul 2023 13:14:04 GMT",
"version": "v1"
}
] | 2024-05-06 | [
[
"Guo",
"Hongying",
""
]
] | We investigate the gravitational Faraday effect in the Kerr-Newman-Taub-NUT space-time under the weak deflection limit. Contrary to previously stated zero net effect when the source and the observer are remote from the black hole, a non-zero Faraday rotation has been found. The rotation angle is dependent on the spin a... |
0712.3518 | Lorenzo Sindoni | L. Sindoni | The Higgs mechanism in Finsler spacetimes | 11 pages, revtex4 | Phys.Rev.D77:124009,2008 | 10.1103/PhysRevD.77.124009 | null | gr-qc | null | Finsler geometry has been recently re-discovered as an interesting
possibility to describe spacetime geometry beyond Riemannian geometry. The most
evident effect of this class of models is the prediction of modified dispersion
relations for particles moving in such backgrounds. In this paper, we are going
to consider... | [
{
"created": "Thu, 20 Dec 2007 18:46:00 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Sindoni",
"L.",
""
]
] | Finsler geometry has been recently re-discovered as an interesting possibility to describe spacetime geometry beyond Riemannian geometry. The most evident effect of this class of models is the prediction of modified dispersion relations for particles moving in such backgrounds. In this paper, we are going to consider t... |
1111.3794 | Timothy Clifton | Timothy Clifton, Chris Clarkson and Philip Bull | The isotropic blackbody CMB as evidence for a homogeneous universe | 5 pages, 1 figure | Phys. Rev. Lett. 109, 051303 (2012) | 10.1103/PhysRevLett.109.051303 | null | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The question of whether the Universe is spatially homogeneous and isotropic
on the largest scales is of fundamental importance to cosmology, but has not
yet been answered decisively. Surprisingly, neither an isotropic primary CMB
nor combined observations of luminosity distances and galaxy number counts are
sufficien... | [
{
"created": "Wed, 16 Nov 2011 13:21:18 GMT",
"version": "v1"
},
{
"created": "Fri, 3 Aug 2012 09:17:29 GMT",
"version": "v2"
}
] | 2015-06-03 | [
[
"Clifton",
"Timothy",
""
],
[
"Clarkson",
"Chris",
""
],
[
"Bull",
"Philip",
""
]
] | The question of whether the Universe is spatially homogeneous and isotropic on the largest scales is of fundamental importance to cosmology, but has not yet been answered decisively. Surprisingly, neither an isotropic primary CMB nor combined observations of luminosity distances and galaxy number counts are sufficient ... |
gr-qc/0211078 | Chiao | Raymond Y. Chiao | Conceptual tensions between quantum mechanics and general relativity:
Are there experimental consequences? | 26 pages, 4 figures, Revised Wheeler Volume Chapter of January 22,
2002 | null | null | null | gr-qc | null | One of the conceptual tensions between quantum mechanics (QM) and general
relativity (GR) arises from the clash between the spatial nonseparability} of
entangled states in QM, and the complete spatial separability of all physical
systems in GR, i.e., between the nonlocality implied by the superposition
principle, and... | [
{
"created": "Mon, 25 Nov 2002 03:48:07 GMT",
"version": "v1"
},
{
"created": "Mon, 30 Dec 2002 16:19:24 GMT",
"version": "v2"
},
{
"created": "Mon, 6 Jan 2003 18:48:48 GMT",
"version": "v3"
},
{
"created": "Wed, 22 Jan 2003 17:58:12 GMT",
"version": "v4"
}
] | 2007-05-23 | [
[
"Chiao",
"Raymond Y.",
""
]
] | One of the conceptual tensions between quantum mechanics (QM) and general relativity (GR) arises from the clash between the spatial nonseparability} of entangled states in QM, and the complete spatial separability of all physical systems in GR, i.e., between the nonlocality implied by the superposition principle, and t... |
1502.04992 | Ra\'ul Carballo-Rubio | Ra\'ul Carballo-Rubio, Carlos Barcel\'o, Luis J. Garay | Some not-so-common ideas about gravity | 12 pages (+ references). Invited talk at DICE2014, Castiglioncello,
September 2014 | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Most of the approaches to the construction of a theory of quantum gravity
share some principles which do not have specific experimental support up to
date. Two of these principles are relevant for our discussion: (i) the
gravitational field should have a quantum description in certain regime, and
(ii) any theory of g... | [
{
"created": "Tue, 17 Feb 2015 18:43:00 GMT",
"version": "v1"
}
] | 2015-02-18 | [
[
"Carballo-Rubio",
"Raúl",
""
],
[
"Barceló",
"Carlos",
""
],
[
"Garay",
"Luis J.",
""
]
] | Most of the approaches to the construction of a theory of quantum gravity share some principles which do not have specific experimental support up to date. Two of these principles are relevant for our discussion: (i) the gravitational field should have a quantum description in certain regime, and (ii) any theory of gra... |
1307.1039 | Chiang-Mei Chen | Gang Sun, Chiang-Mei Chen, Jian-Liang Liu, James M. Nester | An Optimal Choice of Reference for the Quasi-Local Gravitational Energy
and Angular Momentum | 19 pages, 1 figure | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The boundary term of the gravitational Hamiltonian can be used to give the
values of the quasi-local quantities as long as one can provide a suitable
evolution vector field and an appropriate reference. On the two-surface
boundary of a region we have proposed using {\em four dimensional isometric
matching} between th... | [
{
"created": "Wed, 3 Jul 2013 15:15:48 GMT",
"version": "v1"
}
] | 2013-07-04 | [
[
"Sun",
"Gang",
""
],
[
"Chen",
"Chiang-Mei",
""
],
[
"Liu",
"Jian-Liang",
""
],
[
"Nester",
"James M.",
""
]
] | The boundary term of the gravitational Hamiltonian can be used to give the values of the quasi-local quantities as long as one can provide a suitable evolution vector field and an appropriate reference. On the two-surface boundary of a region we have proposed using {\em four dimensional isometric matching} between the ... |
gr-qc/0001012 | Georgii Alekseev | G.A.Alekseev | Gravitational Solitons and Monodromy Transform Approach to Solution of
Integrable Reductions of Einstein Equations | 8 pages, 1 figure, LaTeX2e; based on a talk given at the
International Conference 'Solitons, Collapses and Turbulence: Achievements,
Developments and Perspectives', (Landau Institute for Theoretical Physics,
Chernogolovka, Moscow region, Russia, August 3 -- 10, 1999); as submitted to
Physica D | PhysicaD152:97-103,2001 | 10.1016/S0167-2789(01)00162-2 | null | gr-qc hep-th math-ph math.MP nlin.SI | null | In this paper the well known Belinskii and Zakharov soliton generating
transformations of the solution space of vacuum Einstein equations with
two-dimensional Abelian groups of isometries are considered in the context of
the so called "monodromy transform approach", which provides some general base
for the study of v... | [
{
"created": "Thu, 6 Jan 2000 18:10:32 GMT",
"version": "v1"
}
] | 2009-10-31 | [
[
"Alekseev",
"G. A.",
""
]
] | In this paper the well known Belinskii and Zakharov soliton generating transformations of the solution space of vacuum Einstein equations with two-dimensional Abelian groups of isometries are considered in the context of the so called "monodromy transform approach", which provides some general base for the study of var... |
1603.03880 | Sergey Rubin | Sergey G. Rubin | Interpenetrating subspaces as a funnel to extra space | 10 pages, 5 figures, accepted for publication in Phys. Lett. B,
revised version | Physics Letters B (2016), pp. 622-625 | 10.1016/j.physletb.2016.06.031 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | New solution for two interpenetrating universes is found. Higher derivative
gravity acting in 6-dimensional space is the basis of the study that allows to
obtain stable solution without introducing matter of any sort. Stability of the
solution is maintained by a difference between asymptotic behavior at spacial
infin... | [
{
"created": "Sat, 12 Mar 2016 09:34:55 GMT",
"version": "v1"
},
{
"created": "Thu, 30 Jun 2016 19:00:14 GMT",
"version": "v2"
}
] | 2016-07-20 | [
[
"Rubin",
"Sergey G.",
""
]
] | New solution for two interpenetrating universes is found. Higher derivative gravity acting in 6-dimensional space is the basis of the study that allows to obtain stable solution without introducing matter of any sort. Stability of the solution is maintained by a difference between asymptotic behavior at spacial infinit... |
1902.05221 | Rodrigo Avalos | Rodrigo Avalos and Jorge H. Lira | Reduced thin-sandwich equations on manifolds euclidean at infinity and
on closed manifolds: existence and multiplicity | null | null | 10.1063/5.0008749 | null | gr-qc math.DG | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The reduced thin-sandwich equations (RTSE) appear within Wheeler's
thin-sandwich approach towards the Einstein constraint equations (ECE) of
general relativity. It is known that these equations cannot be well-posed in
general, but, on closed manifolds, sufficient conditions for well-posedness
have been established. I... | [
{
"created": "Thu, 14 Feb 2019 05:02:47 GMT",
"version": "v1"
},
{
"created": "Tue, 16 Jun 2020 04:08:35 GMT",
"version": "v2"
}
] | 2020-12-30 | [
[
"Avalos",
"Rodrigo",
""
],
[
"Lira",
"Jorge H.",
""
]
] | The reduced thin-sandwich equations (RTSE) appear within Wheeler's thin-sandwich approach towards the Einstein constraint equations (ECE) of general relativity. It is known that these equations cannot be well-posed in general, but, on closed manifolds, sufficient conditions for well-posedness have been established. In ... |
1405.5511 | Ronald Adler | Ronald J. Adler | The three-fold theoretical basis of the Gravity Probe B gyro precession
calculation | To appear as one of 21 articles in a special issue of Classical and
Quantum Gravity devoted to the GP-B experiment. 16 pages, 1 figure | null | 10.1088/0264-9381/32/22/224002 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The Gravity Probe B (GP-B) experiment is complete and the results are in
agreement with the predictions of general relativity (GR) for both the geodetic
precession, 6.6 arcsec/yr to about 0.3%, and the Lense-Thirring precession, 39
marcsec to about 19%. This note is concerned with the theoretical basis for the
predic... | [
{
"created": "Wed, 21 May 2014 19:01:11 GMT",
"version": "v1"
}
] | 2015-12-09 | [
[
"Adler",
"Ronald J.",
""
]
] | The Gravity Probe B (GP-B) experiment is complete and the results are in agreement with the predictions of general relativity (GR) for both the geodetic precession, 6.6 arcsec/yr to about 0.3%, and the Lense-Thirring precession, 39 marcsec to about 19%. This note is concerned with the theoretical basis for the predicti... |
1810.01198 | Jeferson de Oliveira | E. Abdalla, B. Cuadros-Melgar, Jeferson de Oliveira, A. B. Pavan and
C. E. Pellicer | Vectorial and spinorial perturbations in Galileon Black Holes:
Quasinormal modes, quasiresonant modes and stability | 25 pages, 5 tables, 11 figures. Version published in Phys. Rev. D 99,
044023 (2019) | Phys. Rev. D 99, 044023 (2019) | 10.1103/PhysRevD.99.044023 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this work we have considered a model that includes the interaction of
gravity and matter fields with Galilean invariance (the so-called derivative
coupling) as well as some corresponding black hole type solutions. Quasinormal
perturbations of two kinds of matter fields have been computed by different
methods. The ... | [
{
"created": "Tue, 2 Oct 2018 12:18:24 GMT",
"version": "v1"
},
{
"created": "Thu, 21 Mar 2019 23:52:55 GMT",
"version": "v2"
}
] | 2019-03-25 | [
[
"Abdalla",
"E.",
""
],
[
"Cuadros-Melgar",
"B.",
""
],
[
"de Oliveira",
"Jeferson",
""
],
[
"Pavan",
"A. B.",
""
],
[
"Pellicer",
"C. E.",
""
]
] | In this work we have considered a model that includes the interaction of gravity and matter fields with Galilean invariance (the so-called derivative coupling) as well as some corresponding black hole type solutions. Quasinormal perturbations of two kinds of matter fields have been computed by different methods. The ef... |
gr-qc/9906046 | Shinsuke Kawai | Shinsuke Kawai and Jiro Soda | Structure Formation in Non-singular Higher Curvature Cosmology | 8 pages, 5 figures. Sections, figures, references added | null | null | KUCP137 | gr-qc | null | We propose novel structure formation scenarios based on a non-singular higher
curvature cosmological model. The model is motivated by the $R^2$ coupling of a
scalar field appearing in the string theory, and in our scenarios the universe
has no beginning and no end. We give two examples with explicit parameter
values ... | [
{
"created": "Tue, 15 Jun 1999 05:31:13 GMT",
"version": "v1"
},
{
"created": "Sun, 17 Oct 1999 23:51:12 GMT",
"version": "v2"
}
] | 2007-05-23 | [
[
"Kawai",
"Shinsuke",
""
],
[
"Soda",
"Jiro",
""
]
] | We propose novel structure formation scenarios based on a non-singular higher curvature cosmological model. The model is motivated by the $R^2$ coupling of a scalar field appearing in the string theory, and in our scenarios the universe has no beginning and no end. We give two examples with explicit parameter values wh... |
1908.09194 | Jasel Berra Montiel | Jasel Berra-Montiel | The Polymer representation for the scalar field: A Wigner functional
approach | 17 pages, no figures | Class. Quantum Grav. 37 025006 (2020) | 10.1088/1361-6382/ab5bc7 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper, we analyze the polymer representation of the real-valued
scalar field theory within the deformation quantization formalism.
Specifically, we obtain the polymer Wigner functional by taking the limit of
Gaussian measures in the Schodinger representation. The limiting functional
corresponds to the polymer... | [
{
"created": "Sat, 24 Aug 2019 19:51:45 GMT",
"version": "v1"
},
{
"created": "Thu, 19 Dec 2019 15:27:30 GMT",
"version": "v2"
}
] | 2019-12-20 | [
[
"Berra-Montiel",
"Jasel",
""
]
] | In this paper, we analyze the polymer representation of the real-valued scalar field theory within the deformation quantization formalism. Specifically, we obtain the polymer Wigner functional by taking the limit of Gaussian measures in the Schodinger representation. The limiting functional corresponds to the polymer r... |
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