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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
gr-qc/0312076 | Jiro Soda | Jiro Soda, Sugumi Kanno | Inflationary Braneworld Driven By Bulk Scalar Field | 8 pages, no figure; invited talk presented at The 6th RESCEU
International Symposium "Frontier in Astroparticle Physics and Cosmology",
Tokyo, Japan, November 4 - 7, 2003 | null | null | null | gr-qc | null | We have developed a formalism to study an inflationary scenario driven by a
bulk inflaton in the two-brane system. The 4-dimensional low energy effective
action is obtained using the gradient expansion method. It is also found that
the dark radiation and the dark scalar source are expressed by the radion. In
the sing... | [
{
"created": "Wed, 17 Dec 2003 02:50:47 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Soda",
"Jiro",
""
],
[
"Kanno",
"Sugumi",
""
]
] | We have developed a formalism to study an inflationary scenario driven by a bulk inflaton in the two-brane system. The 4-dimensional low energy effective action is obtained using the gradient expansion method. It is also found that the dark radiation and the dark scalar source are expressed by the radion. In the single... |
1501.07096 | Chandra Kant Mishra | Chandra Kant Mishra, K. G. Arun, Bala R. Iyer | Third post-Newtonian gravitational waveforms for compact binary systems
in general orbits: Instantaneous terms | Consistent with the published PRD version; Files (readable in
MATHEMATICA) containing the expressions of all the relevant modes
contributing to the 3PN waveform are included in the "source" | Phys. Rev. D 91, 084040 (2015) | 10.1103/PhysRevD.91.084040 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We compute the instantaneous contributions to the spherical harmonic modes of
gravitational waveforms from compact binary systems in general orbits up to the
third post-Newtonian order. We further extend these results for compact
binaries in quasi-elliptical orbits using the 3PN quasi-Keplerian
representation of the ... | [
{
"created": "Wed, 28 Jan 2015 13:33:59 GMT",
"version": "v1"
},
{
"created": "Mon, 11 May 2015 09:08:50 GMT",
"version": "v2"
}
] | 2015-05-12 | [
[
"Mishra",
"Chandra Kant",
""
],
[
"Arun",
"K. G.",
""
],
[
"Iyer",
"Bala R.",
""
]
] | We compute the instantaneous contributions to the spherical harmonic modes of gravitational waveforms from compact binary systems in general orbits up to the third post-Newtonian order. We further extend these results for compact binaries in quasi-elliptical orbits using the 3PN quasi-Keplerian representation of the co... |
1809.04616 | Qing-Qing Zhao | Qing-Qing Zhao, Yue-Zhou Li, H. Lu | Static Equilibria of Charged Particles Around Charged Black Holes: Chaos
Bound and Its Violations | Latex, 29 pages, 1 figure | Phys. Rev. D 98, 124001 (2018) | 10.1103/PhysRevD.98.124001 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the static equilibrium of a charged massive particle around a
charged black hole, balanced by the Lorentz force. For a given black hole, the
equilibrium surface is determined by the charge/mass ratio of the particle. By
investigating a large class of charged black holes, we find that the equilibria
can be st... | [
{
"created": "Wed, 12 Sep 2018 18:03:12 GMT",
"version": "v1"
}
] | 2018-12-12 | [
[
"Zhao",
"Qing-Qing",
""
],
[
"Li",
"Yue-Zhou",
""
],
[
"Lu",
"H.",
""
]
] | We study the static equilibrium of a charged massive particle around a charged black hole, balanced by the Lorentz force. For a given black hole, the equilibrium surface is determined by the charge/mass ratio of the particle. By investigating a large class of charged black holes, we find that the equilibria can be stab... |
gr-qc/9801055 | Jorge Pullin | R. Gambini, O. Obregon, J. Pullin | Yang-Mills analogues of the Immirzi ambiguity | 5 pages, revtex, no figures | Phys.Rev. D59 (1999) 047505 | 10.1103/PhysRevD.59.047505 | CGPG-98/1-2 | gr-qc | null | We draw parallels between the recently introduced ``Immirzi ambiguity'' of
the Ashtekar-like formulation of canonical quantum gravity and other
ambiguities that appear in Yang-Mills theories, like the $\theta$ ambiguity. We
also discuss ambiguities in the Maxwell case, and implication for the loop
quantization of the... | [
{
"created": "Thu, 15 Jan 1998 18:16:01 GMT",
"version": "v1"
}
] | 2009-10-31 | [
[
"Gambini",
"R.",
""
],
[
"Obregon",
"O.",
""
],
[
"Pullin",
"J.",
""
]
] | We draw parallels between the recently introduced ``Immirzi ambiguity'' of the Ashtekar-like formulation of canonical quantum gravity and other ambiguities that appear in Yang-Mills theories, like the $\theta$ ambiguity. We also discuss ambiguities in the Maxwell case, and implication for the loop quantization of these... |
0912.3691 | Ingemar Bengtsson | Jan E. Aman, Ingemar Bengtsson, and Jos\'e M. M. Senovilla | Where are the trapped surfaces? | 6 pages, 1 figure; talk at the Spanish Relativity Meeting ERE09 in
Bilbao | J.Phys.Conf.Ser.229:012004,2010 | 10.1088/1742-6596/229/1/012004 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We discuss the boundary of the spacetime region through each point of which a
trapped surface passes, first in some simple soluble examples, and then in the
self-similar Vaidya solution. For the latter the boundary must lie strictly
inside the event horizon. We present a class of closed trapped surfaces
extending str... | [
{
"created": "Fri, 18 Dec 2009 14:56:49 GMT",
"version": "v1"
}
] | 2010-07-26 | [
[
"Aman",
"Jan E.",
""
],
[
"Bengtsson",
"Ingemar",
""
],
[
"Senovilla",
"José M. M.",
""
]
] | We discuss the boundary of the spacetime region through each point of which a trapped surface passes, first in some simple soluble examples, and then in the self-similar Vaidya solution. For the latter the boundary must lie strictly inside the event horizon. We present a class of closed trapped surfaces extending stric... |
1405.1508 | Cosimo Bambi | Lingyao Kong, Zilong Li, Cosimo Bambi | Constraints on the spacetime geometry around 10 stellar-mass black hole
candidates from the disk's thermal spectrum | 13 pages, 7 figures. v2: refereed version | Astrophys.J.797:78,2014 | 10.1088/0004-637X/797/2/78 | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In a previous paper, one of us has described a code to compute the thermal
spectrum of geometrically thin and optically thick accretion disks around
generic stationary and axisymmetric black holes, which are not necessarily of
the Kerr type. As the structure of the accretion disk and the propagation of
electromagneti... | [
{
"created": "Wed, 7 May 2014 05:47:30 GMT",
"version": "v1"
},
{
"created": "Thu, 9 Oct 2014 01:57:06 GMT",
"version": "v2"
}
] | 2014-12-03 | [
[
"Kong",
"Lingyao",
""
],
[
"Li",
"Zilong",
""
],
[
"Bambi",
"Cosimo",
""
]
] | In a previous paper, one of us has described a code to compute the thermal spectrum of geometrically thin and optically thick accretion disks around generic stationary and axisymmetric black holes, which are not necessarily of the Kerr type. As the structure of the accretion disk and the propagation of electromagnetic ... |
gr-qc/9412013 | Dirk Graudenz | Dirk Graudenz (CERN) | On the Space-Time Geometry of Quantum Systems | 15 pages (LaTeX); figures are included via epsfig; the corresponding
postscript files are uuencoded; AMS-fonts are needed | null | null | CERN-TH.7516/94 | gr-qc hep-th | null | We describe the time evolution of quantum systems in a classical background
space-time by means of a covariant derivative in an infinite dimensional vector
bundle. The corresponding parallel transport operator along a timelike curve
$\cC$ is interpreted as the time evolution operator of an observer moving along
$\cC$... | [
{
"created": "Mon, 5 Dec 1994 11:52:07 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Graudenz",
"Dirk",
"",
"CERN"
]
] | We describe the time evolution of quantum systems in a classical background space-time by means of a covariant derivative in an infinite dimensional vector bundle. The corresponding parallel transport operator along a timelike curve $\cC$ is interpreted as the time evolution operator of an observer moving along $\cC$. ... |
0902.4669 | Nicolas Yunes | Nicolas Yunes and Frans Pretorius | Dynamical Chern-Simons Modified Gravity I: Spinning Black Holes in the
Slow-Rotation Approximation | 13 pages, no figures, replaced with version accepted for publication
in Phys. Rev. D. This version corrects a minor typo in Eq. 1 of the published
version | Phys.Rev.D79:084043,2009 | 10.1103/PhysRevD.79.084043 | null | gr-qc astro-ph.CO astro-ph.HE hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The low-energy limit of string theory contains an anomaly-canceling
correction to the Einstein-Hilbert action, which defines an effective theory:
Chern-Simons (CS) modified gravity. The CS correction consists of the product
of a scalar field with the Pontryagin density, where the former can be treated
as a background... | [
{
"created": "Thu, 26 Feb 2009 19:18:59 GMT",
"version": "v1"
},
{
"created": "Wed, 22 Apr 2009 15:40:21 GMT",
"version": "v2"
},
{
"created": "Sun, 16 Aug 2009 13:30:37 GMT",
"version": "v3"
}
] | 2009-10-29 | [
[
"Yunes",
"Nicolas",
""
],
[
"Pretorius",
"Frans",
""
]
] | The low-energy limit of string theory contains an anomaly-canceling correction to the Einstein-Hilbert action, which defines an effective theory: Chern-Simons (CS) modified gravity. The CS correction consists of the product of a scalar field with the Pontryagin density, where the former can be treated as a background f... |
gr-qc/0303106 | Michael J. Pfenning | Christopher J. Fewster and Michael J. Pfenning | A Quantum Weak Energy Inequality for Spin-One Fields in Curved Spacetime | RevTex4, 29 pages, 1 figure | J.Math.Phys. 44 (2003) 4480-4513 | 10.1063/1.1602554 | Erwin Schrodinger Institute 1295 (2003) | gr-qc math-ph math.MP | null | Quantum weak energy inequalities (QWEI) provide state-independent lower
bounds on averages of the renormalised energy density of a quantum field. We
derive QWEIs for the electromagnetic and massive spin-one fields in globally
hyperbolic spacetimes whose Cauchy surfaces are compact and have trivial first
homology grou... | [
{
"created": "Wed, 26 Mar 2003 16:03:00 GMT",
"version": "v1"
}
] | 2009-11-10 | [
[
"Fewster",
"Christopher J.",
""
],
[
"Pfenning",
"Michael J.",
""
]
] | Quantum weak energy inequalities (QWEI) provide state-independent lower bounds on averages of the renormalised energy density of a quantum field. We derive QWEIs for the electromagnetic and massive spin-one fields in globally hyperbolic spacetimes whose Cauchy surfaces are compact and have trivial first homology group.... |
gr-qc/9908071 | Elisa Di Pietro | Elisa Di Pietro and Jacques Demaret | A constant equation of state for quintessence ? | 9 pages, no figures. Submitted to IJMPD. Typos corrected | Int.J.Mod.Phys. D10 (2001) 231-237 | 10.1142/S0218271801000779 | null | gr-qc | null | Quintessence is often invoked to explain the universe acceleration suggested
by the type Ia supernovae observations. The aim of this letter is to study the
validity of using a constant equation of state for quintessence models. We
shall show that this hypothesis strongly constraint the form of the scalar
potential.
| [
{
"created": "Fri, 27 Aug 1999 16:50:22 GMT",
"version": "v1"
},
{
"created": "Fri, 25 Aug 2000 13:50:17 GMT",
"version": "v2"
},
{
"created": "Tue, 5 Sep 2000 09:07:52 GMT",
"version": "v3"
}
] | 2016-08-31 | [
[
"Di Pietro",
"Elisa",
""
],
[
"Demaret",
"Jacques",
""
]
] | Quintessence is often invoked to explain the universe acceleration suggested by the type Ia supernovae observations. The aim of this letter is to study the validity of using a constant equation of state for quintessence models. We shall show that this hypothesis strongly constraint the form of the scalar potential. |
gr-qc/9606086 | null | Hisashi Onozawa, Takashi Okamura, Takashi Mishima and Hideki Ishihara
(Tokyo Inst. of Tech.) | Perturbing Supersymmetric Black Hole | 4 pages, 2 eps figures, REVTEX | Phys.Rev.D55:4529-4531,1997 | 10.1103/PhysRevD.55.4529 | TIT-HEP-334/COSMO-73 | gr-qc hep-th | null | An investigation of the perturbations of the Reissner-Nordstr\"{o}m black
hole in the $N=2$ supergravity is presented. We prove in the extremal limit
that the black hole responds to the perturbation of each field in the same
manner. We conjecture that we can match the modes of the graviton, gravitino
and photon becau... | [
{
"created": "Sat, 29 Jun 1996 07:59:45 GMT",
"version": "v1"
},
{
"created": "Tue, 22 Oct 1996 12:21:57 GMT",
"version": "v2"
}
] | 2009-12-30 | [
[
"Onozawa",
"Hisashi",
"",
"Tokyo Inst. of Tech."
],
[
"Okamura",
"Takashi",
"",
"Tokyo Inst. of Tech."
],
[
"Mishima",
"Takashi",
"",
"Tokyo Inst. of Tech."
],
[
"Ishihara",
"Hideki",
"",
"Tokyo Inst. of Tech."
]
] | An investigation of the perturbations of the Reissner-Nordstr\"{o}m black hole in the $N=2$ supergravity is presented. We prove in the extremal limit that the black hole responds to the perturbation of each field in the same manner. We conjecture that we can match the modes of the graviton, gravitino and photon because... |
1210.7566 | Xianghui Luo | Xianghui Luo, James Isenberg | Power Law Inflation with Electromagnetism | 56 pages | Ann.Phys. 334(2013)420-454 | null | null | gr-qc math.AP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We generalize Ringstr\"om's global future causal stability results
(Ringstr\"om 2009) for certain expanding cosmological solutions of the
Einstein-scalar field equations to solutions of the Einstein-Maxwell-scalar
field system. In particular, after noting that the power law inflationary
spacetimes $(M^{n+1}, \hat{g},... | [
{
"created": "Mon, 29 Oct 2012 05:22:38 GMT",
"version": "v1"
}
] | 2017-05-19 | [
[
"Luo",
"Xianghui",
""
],
[
"Isenberg",
"James",
""
]
] | We generalize Ringstr\"om's global future causal stability results (Ringstr\"om 2009) for certain expanding cosmological solutions of the Einstein-scalar field equations to solutions of the Einstein-Maxwell-scalar field system. In particular, after noting that the power law inflationary spacetimes $(M^{n+1}, \hat{g}, \... |
2112.05397 | Carlos Heredia Pimienta | Carlos Heredia, Ivan Kol\'a\v{r}, Josep Llosa, Francisco Jos\'e
Maldonado Torralba, Anupam Mazumdar | Infinite-derivative linearized gravity in convolutional form | 23 pages, comments welcome! | Class. Quantum Grav. 39 (2022) 085001 | 10.1088/1361-6382/ac5a14 | null | gr-qc hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | This article aims to transform the infinite-order Lagrangian density for
ghost-free infinite-derivative linearized gravity into non-local. To achieve
it, we use the theory of generalized functions and the Fourier transform in the
space of tempered distributions $\mathcal{S}^\prime$. We show that the
non-local operato... | [
{
"created": "Fri, 10 Dec 2021 09:02:38 GMT",
"version": "v1"
}
] | 2022-03-30 | [
[
"Heredia",
"Carlos",
""
],
[
"Kolář",
"Ivan",
""
],
[
"Llosa",
"Josep",
""
],
[
"Torralba",
"Francisco José Maldonado",
""
],
[
"Mazumdar",
"Anupam",
""
]
] | This article aims to transform the infinite-order Lagrangian density for ghost-free infinite-derivative linearized gravity into non-local. To achieve it, we use the theory of generalized functions and the Fourier transform in the space of tempered distributions $\mathcal{S}^\prime$. We show that the non-local operator ... |
2402.11150 | Neil Ashby | Neil Ashby and Bijunath Patla | A Relativistic Framework to Establish Coordinate Time on the Moon and
Beyond | null | null | null | null | gr-qc | http://creativecommons.org/publicdomain/zero/1.0/ | As humanity aspires to explore the solar system and investigate distant
worlds such as the Moon, Mars, and beyond, there is a growing need to establish
and broaden coordinate time references that depend on the rate of standard
clocks. According to Einstein's theory of relativity, the rate of a standard
clock is influ... | [
{
"created": "Sat, 17 Feb 2024 00:33:58 GMT",
"version": "v1"
}
] | 2024-02-20 | [
[
"Ashby",
"Neil",
""
],
[
"Patla",
"Bijunath",
""
]
] | As humanity aspires to explore the solar system and investigate distant worlds such as the Moon, Mars, and beyond, there is a growing need to establish and broaden coordinate time references that depend on the rate of standard clocks. According to Einstein's theory of relativity, the rate of a standard clock is influen... |
1909.05258 | Emanuele Berti | F\'elix-Louis Juli\'e, Emanuele Berti | Post-Newtonian dynamics and black hole thermodynamics in
Einstein-scalar-Gauss-Bonnet gravity | 20 pages, 4 figures | Phys. Rev. D 100, 104061 (2019) | 10.1103/PhysRevD.100.104061 | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the post-Newtonian dynamics of black hole binaries in
Einstein-scalar-Gauss-Bonnet gravity theories. To this aim we build static,
spherically symmetric black hole solutions at fourth order in the Gauss-Bonnet
coupling $\alpha$. We then "skeletonize" these solutions by reducing them to
point particles with sc... | [
{
"created": "Wed, 11 Sep 2019 18:00:01 GMT",
"version": "v1"
}
] | 2019-12-04 | [
[
"Julié",
"Félix-Louis",
""
],
[
"Berti",
"Emanuele",
""
]
] | We study the post-Newtonian dynamics of black hole binaries in Einstein-scalar-Gauss-Bonnet gravity theories. To this aim we build static, spherically symmetric black hole solutions at fourth order in the Gauss-Bonnet coupling $\alpha$. We then "skeletonize" these solutions by reducing them to point particles with scal... |
2207.00030 | Viola De Renzis | Viola De Renzis, Davide Gerosa, Geraint Pratten, Patricia Schmidt,
Matthew Mould | Characterization of merging black holes with two precessing spins | 12 pages, 8 figures, 1 table | Phys. Rev. D 106, 084040 (2022) | 10.1103/PhysRevD.106.084040 | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Spin precession in merging black-hole binaries is a treasure trove for both
astrophysics and fundamental physics. There are now well-established strategies
to infer from gravitational-wave data whether at least one of the two black
holes is precessing. In this paper we tackle the next-in-line target, namely
the stati... | [
{
"created": "Thu, 30 Jun 2022 18:00:24 GMT",
"version": "v1"
},
{
"created": "Fri, 21 Oct 2022 15:51:21 GMT",
"version": "v2"
}
] | 2022-10-24 | [
[
"De Renzis",
"Viola",
""
],
[
"Gerosa",
"Davide",
""
],
[
"Pratten",
"Geraint",
""
],
[
"Schmidt",
"Patricia",
""
],
[
"Mould",
"Matthew",
""
]
] | Spin precession in merging black-hole binaries is a treasure trove for both astrophysics and fundamental physics. There are now well-established strategies to infer from gravitational-wave data whether at least one of the two black holes is precessing. In this paper we tackle the next-in-line target, namely the statist... |
2006.00907 | Faizuddin Ahmed | Faizuddin Ahmed | Investigation of spin-$0$ massive charged particle subject to a
homogeneous magnetic field with potentials in a topologically trivial flat
class of G\"{o}del-type space-time | 22 pages, accepted for publication in Adv. High Energy Physics
journal | Adv. High Energy Physics Volume 2020, Article ID 7943436 (2020) | 10.1155/2020/7943436 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper, we investigate relativistic quantum dynamics of spin- $0$
massive charged particle subject to a homogeneous magnetic field in the
G\"{o}del-type space-time with potentials. We solve the Klein-Gordon equation
subject to a homogeneous magnetic field in a topologically trivial flat class
of G\"{o}del-type... | [
{
"created": "Fri, 29 May 2020 14:45:56 GMT",
"version": "v1"
}
] | 2020-06-12 | [
[
"Ahmed",
"Faizuddin",
""
]
] | In this paper, we investigate relativistic quantum dynamics of spin- $0$ massive charged particle subject to a homogeneous magnetic field in the G\"{o}del-type space-time with potentials. We solve the Klein-Gordon equation subject to a homogeneous magnetic field in a topologically trivial flat class of G\"{o}del-type s... |
2310.05780 | Andronikos Paliathanasis | Andronikos Paliathanasis | Lie symmetries for the cosmological field equations in brane-world
gravity with bulk scalar field | 14 pages, no figures, to appear in Physica Scripta | null | null | null | gr-qc math-ph math.MP | http://creativecommons.org/licenses/by/4.0/ | We address the group classification problem for gravitational field equations
within the context of brane-world cosmology, considering the presence of a bulk
scalar field. Our investigation revolves around a five-dimensional spacetime,
with the four-dimensional Friedmann--Lema\^{\i}tre--Robertson--Walker geometry
emb... | [
{
"created": "Mon, 9 Oct 2023 15:13:45 GMT",
"version": "v1"
}
] | 2023-10-10 | [
[
"Paliathanasis",
"Andronikos",
""
]
] | We address the group classification problem for gravitational field equations within the context of brane-world cosmology, considering the presence of a bulk scalar field. Our investigation revolves around a five-dimensional spacetime, with the four-dimensional Friedmann--Lema\^{\i}tre--Robertson--Walker geometry embed... |
gr-qc/0005020 | Mohammad Vahid Takook | Mohammad Vahid Takook | Covariant two point function for minimally coupled scalar field in de
Sitter space-time | 7 pages, LaTex; some details added | Mod.Phys.Lett. A16 (2001) 1691-1698 | null | null | gr-qc | null | In a recent paper [1], it has been shown that negative norm states are
indispensable for a fully covariant quantization of the minimally coupled
scalar field in de Sitter space. Their presence, while leaving unchanged the
physical content of the theory, offers an automatic and covariant
renormalization of the vacuum ... | [
{
"created": "Mon, 8 May 2000 09:45:45 GMT",
"version": "v1"
},
{
"created": "Fri, 13 Oct 2000 11:38:32 GMT",
"version": "v2"
}
] | 2007-05-23 | [
[
"Takook",
"Mohammad Vahid",
""
]
] | In a recent paper [1], it has been shown that negative norm states are indispensable for a fully covariant quantization of the minimally coupled scalar field in de Sitter space. Their presence, while leaving unchanged the physical content of the theory, offers an automatic and covariant renormalization of the vacuum en... |
2203.00385 | Umananda Dev Goswami | Pranjal Sarmah and Umananda Dev Goswami | Bianchi Type I model of universe with customized scale factors | 18 pages, 10 figures | Modern Physics Letters A (2022) | 10.1142/S0217732322501346 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | According to standard cosmology, the universe is homogeneous and isotropic at
large scales. However, some anisotropies can be observed at the local scale in
the universe through various ways. Here we have studied the Bianchi type I
model with customizing the scale factors to understand the anisotropic nature
of the u... | [
{
"created": "Tue, 1 Mar 2022 12:10:22 GMT",
"version": "v1"
},
{
"created": "Fri, 9 Sep 2022 08:17:53 GMT",
"version": "v2"
}
] | 2022-09-12 | [
[
"Sarmah",
"Pranjal",
""
],
[
"Goswami",
"Umananda Dev",
""
]
] | According to standard cosmology, the universe is homogeneous and isotropic at large scales. However, some anisotropies can be observed at the local scale in the universe through various ways. Here we have studied the Bianchi type I model with customizing the scale factors to understand the anisotropic nature of the uni... |
gr-qc/0602083 | Tomohiro Inagaki | Tomohiro Inagaki | Radiative Symmetry Breaking and Dynamical Origin of Cosmological
Constant in $\phi^4$ Theory with Non-Linear Curvature Coupling | 9 pages. To appear in the proceedings of 7th Workshop on Quantum
Field Theory Under the Influence of External Conditions (QFEXT 05),
Barcelona, Catalonia, Spain, 5-9 Sep 2005 | J.Phys. A39 (2006) 6455-6462 | 10.1088/0305-4470/39/21/S41 | null | gr-qc | null | A scalar self-interacting theory non-linearly coupled with some power of the
curvature have a possibility to explain the current smallness of the
cosmological constant. Here one concentrate on a massless scalar field in the
four-dimensional Fridmann-Robertson-Walker (FRW) spacetime with flat spatial
part. One show th... | [
{
"created": "Tue, 21 Feb 2006 14:23:35 GMT",
"version": "v1"
}
] | 2009-11-11 | [
[
"Inagaki",
"Tomohiro",
""
]
] | A scalar self-interacting theory non-linearly coupled with some power of the curvature have a possibility to explain the current smallness of the cosmological constant. Here one concentrate on a massless scalar field in the four-dimensional Fridmann-Robertson-Walker (FRW) spacetime with flat spatial part. One show the ... |
2007.09957 | Yungui Gong | Zhu Yi, Yungui Gong, Bin Wang, Zong-hong Zhu | Primordial black holes and secondary gravitational waves from the Higgs
field | added discussion on the running of the self-coupling, published in
PRD | Phys. Rev. D 103, 063535 (2021) | 10.1103/PhysRevD.103.063535 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We devise a novel mechanism and for the first time demonstrate that the Higgs
model in particle physics can drive the inflation to satisfy the cosmic
microwave background observations and simultaneously enhance the curvature
perturbations at small scales to explain the abundance of dark matter in our
universe in the ... | [
{
"created": "Mon, 20 Jul 2020 09:15:32 GMT",
"version": "v1"
},
{
"created": "Thu, 1 Apr 2021 16:25:46 GMT",
"version": "v2"
}
] | 2021-04-07 | [
[
"Yi",
"Zhu",
""
],
[
"Gong",
"Yungui",
""
],
[
"Wang",
"Bin",
""
],
[
"Zhu",
"Zong-hong",
""
]
] | We devise a novel mechanism and for the first time demonstrate that the Higgs model in particle physics can drive the inflation to satisfy the cosmic microwave background observations and simultaneously enhance the curvature perturbations at small scales to explain the abundance of dark matter in our universe in the fo... |
2403.09816 | David Gr\"uber | D. Gr\"uber, L. Sousa, P. P. Avelino | Stochastic gravitational wave background generated by domain wall
networks | null | null | null | null | gr-qc astro-ph.CO hep-th | http://creativecommons.org/licenses/by/4.0/ | In this work we study the power spectrum of the Stochastic Gravitational Wave
Background produced by standard and biased domain wall networks, using the
Velocity-dependent One-Scale model to compute the cosmological evolution of
their characteristic scale and root-mean-squared velocity. We consider a
standard radiati... | [
{
"created": "Thu, 14 Mar 2024 19:10:23 GMT",
"version": "v1"
}
] | 2024-03-18 | [
[
"Grüber",
"D.",
""
],
[
"Sousa",
"L.",
""
],
[
"Avelino",
"P. P.",
""
]
] | In this work we study the power spectrum of the Stochastic Gravitational Wave Background produced by standard and biased domain wall networks, using the Velocity-dependent One-Scale model to compute the cosmological evolution of their characteristic scale and root-mean-squared velocity. We consider a standard radiation... |
gr-qc/9612047 | Vladimir Dzhunushaliev | V.D. Dzhunushaliev | Multidimensional Geometrical Model of the Electrical and SU(2) Colour
Charge with Splitting off the Supplementary Coordinates | LATEX, p.7 | Russ.Phys.J. 41 (1998) 93-96; Izv.Vuz.Fiz. 41N2 (1998) 7-11 | null | null | gr-qc | null | The geometrical model of an electrical charge is proposed. This model has the
''nake'' charge shunted with ``fur - coat'' consisting of virtual wormholes.
The 5D wormhole solution in the Kaluza - Klein's theory is the ''nake'' charge.
The splitting off the supplementary coordinates happens on the two spheres
(null su... | [
{
"created": "Mon, 16 Dec 1996 07:14:23 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Dzhunushaliev",
"V. D.",
""
]
] | The geometrical model of an electrical charge is proposed. This model has the ''nake'' charge shunted with ``fur - coat'' consisting of virtual wormholes. The 5D wormhole solution in the Kaluza - Klein's theory is the ''nake'' charge. The splitting off the supplementary coordinates happens on the two spheres (null surf... |
1201.2667 | Alex Venditti | Alex Venditti, Charles Dyer | On the Response of Particle Detectors in Vaidya Spacetimes | 14 pages, 2 figures | Class. Quantum Grav. 30 (2013) 065004 | 10.1088/0264-9381/30/6/065004 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Using the formalism of the interaction picture we calculate an expression for
the Wightman function for only the spherically symmetric modes of a quantum
Klein-Gordon scalar field in a general Vaidya spacetime with ingoing null dust.
It is demonstrated that particle detectors following time-like trajectories
that are... | [
{
"created": "Thu, 12 Jan 2012 20:43:02 GMT",
"version": "v1"
}
] | 2013-03-06 | [
[
"Venditti",
"Alex",
""
],
[
"Dyer",
"Charles",
""
]
] | Using the formalism of the interaction picture we calculate an expression for the Wightman function for only the spherically symmetric modes of a quantum Klein-Gordon scalar field in a general Vaidya spacetime with ingoing null dust. It is demonstrated that particle detectors following time-like trajectories that are i... |
2106.05163 | Atul Divakarla | Atul K. Divakarla, Bernard F. Whiting | The First-Order Velocity Memory Effect from Compact Binary Coalescing
Sources | null | Phys. Rev. D 104, 064001 (2021) | 10.1103/PhysRevD.104.064001 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | It has long been known that gravitational waves from compact binary
coalescing sources are responsible for a first-order displacement memory effect
experienced by a pair of freely falling test masses. This constant displacement
is sourced from the non-vanishing final gravitational-wave strain present in
the wave's af... | [
{
"created": "Wed, 9 Jun 2021 16:10:56 GMT",
"version": "v1"
}
] | 2021-09-08 | [
[
"Divakarla",
"Atul K.",
""
],
[
"Whiting",
"Bernard F.",
""
]
] | It has long been known that gravitational waves from compact binary coalescing sources are responsible for a first-order displacement memory effect experienced by a pair of freely falling test masses. This constant displacement is sourced from the non-vanishing final gravitational-wave strain present in the wave's afte... |
gr-qc/0607010 | Fabio Scardigli | Fabio Scardigli | Hawking temperature for various kinds of black holes from Heisenberg
uncertainty principle | LaTex file, 7 pages, 2 figures | Int. J. Geom. Meth. Mod. Phys., 2040004, 1 (2020) | 10.1142/S0219887820400046 | null | gr-qc | null | Hawking temperature is computed for a large class of black holes (with
spherical, toroidal and hyperboloidal topologies) using only laws of classical
physics plus the "classical" Heisenberg Uncertainty Principle. This principle
is shown to be fully sufficient to get the result, and there is no need to this
scope of a... | [
{
"created": "Tue, 4 Jul 2006 10:29:52 GMT",
"version": "v1"
}
] | 2020-04-17 | [
[
"Scardigli",
"Fabio",
""
]
] | Hawking temperature is computed for a large class of black holes (with spherical, toroidal and hyperboloidal topologies) using only laws of classical physics plus the "classical" Heisenberg Uncertainty Principle. This principle is shown to be fully sufficient to get the result, and there is no need to this scope of a G... |
0910.3887 | L\'aszl\'o \'A Gergely | L. \'A. Gergely, Z. Keresztes, A. Yu. Kamenshchik, V. Gorini, U.
Moschella | Do supernovae favor tachyonic Big Brake instead de Sitter? | 8 pages, 6 figures, to be published in the Proceedings of the
Invisible Universe International Conference, Paris, 2009, Ed. J. M. Alimi;
v2: references | AIP Conf.Proc.1241:884-891,2010 | 10.1063/1.3462729 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate whether a tachyonic scalar field, encompassing both dark
energy and dark matter-like features will drive our universe towards a Big
Brake singularity or a de Sitter expansion. In doing this it is crucial to
establish the parameter domain of the model, which is compatible with type Ia
supernovae data. W... | [
{
"created": "Tue, 20 Oct 2009 15:59:44 GMT",
"version": "v1"
},
{
"created": "Sun, 1 Nov 2009 06:53:36 GMT",
"version": "v2"
}
] | 2010-08-05 | [
[
"Gergely",
"L. Á.",
""
],
[
"Keresztes",
"Z.",
""
],
[
"Kamenshchik",
"A. Yu.",
""
],
[
"Gorini",
"V.",
""
],
[
"Moschella",
"U.",
""
]
] | We investigate whether a tachyonic scalar field, encompassing both dark energy and dark matter-like features will drive our universe towards a Big Brake singularity or a de Sitter expansion. In doing this it is crucial to establish the parameter domain of the model, which is compatible with type Ia supernovae data. We ... |
1201.4048 | Naonori Sugiyama | Naonori S. Sugiyama | Consistency Relation for multifield inflation scenario with all loop
contributions | 24 pages, 6 figures | JCAP05(2012)032 | 10.1088/1475-7516/2012/05/032 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The consistency relation between non-linear parameters $f_{NL}$ and
$\tau_{NL}$ characterizing Non-Gaussianity generated during the inflationary
period have been emerged as a useful tool which have a possibility to rule out
a large class of inflationary models all at once. In our previous work, we
extended the Suyama... | [
{
"created": "Thu, 19 Jan 2012 12:58:51 GMT",
"version": "v1"
},
{
"created": "Sun, 22 Jan 2012 13:16:34 GMT",
"version": "v2"
},
{
"created": "Tue, 24 Jan 2012 06:34:17 GMT",
"version": "v3"
},
{
"created": "Thu, 8 Mar 2012 09:01:53 GMT",
"version": "v4"
},
{
"cr... | 2012-06-11 | [
[
"Sugiyama",
"Naonori S.",
""
]
] | The consistency relation between non-linear parameters $f_{NL}$ and $\tau_{NL}$ characterizing Non-Gaussianity generated during the inflationary period have been emerged as a useful tool which have a possibility to rule out a large class of inflationary models all at once. In our previous work, we extended the Suyama-Y... |
1712.06533 | Serguei Ossokine | Serguei Ossokine, Tim Dietrich, Evan Foley, Reza Katebi, Geoffrey
Lovelace | Assessing the Energetics of Spinning Binary Black Hole Systems | null | Phys. Rev. D 98, 104057 (2018) | 10.1103/PhysRevD.98.104057 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this work we study the dynamics of spinning binary black hole systems in
the strong field regime. For this purpose we extract from numerical relativity
simulations the binding energy, specific orbital angular momentum, and
gauge-invariant orbital frequency. The goal of our work is threefold: First, we
extract the ... | [
{
"created": "Mon, 18 Dec 2017 17:20:11 GMT",
"version": "v1"
}
] | 2018-12-05 | [
[
"Ossokine",
"Serguei",
""
],
[
"Dietrich",
"Tim",
""
],
[
"Foley",
"Evan",
""
],
[
"Katebi",
"Reza",
""
],
[
"Lovelace",
"Geoffrey",
""
]
] | In this work we study the dynamics of spinning binary black hole systems in the strong field regime. For this purpose we extract from numerical relativity simulations the binding energy, specific orbital angular momentum, and gauge-invariant orbital frequency. The goal of our work is threefold: First, we extract the in... |
0904.3627 | Gil Jannes | Gil Jannes | Condensed matter lessons about the origin of time | v1: 9 pages. Fourth juried prize in FQXi essay contest on "the Nature
of Time" (2008). v2: 2015 update, partially rewritten and extended for
Foundations of Physics. arXiv admin note: substantial text overlap with
arXiv:0810.0613 | Found. Phys. 45, 279-294 (2015) | 10.1007/s10701-014-9864-3 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | It is widely hoped that quantum gravity will shed light on the question of
the origin of time in physics. The currently dominant approaches to a candidate
quantum theory of gravity have naturally evolved from general relativity, on
the one hand, and from particle physics, on the other hand. A third important
branch o... | [
{
"created": "Thu, 23 Apr 2009 08:41:09 GMT",
"version": "v1"
},
{
"created": "Wed, 13 May 2015 16:46:04 GMT",
"version": "v2"
}
] | 2015-05-14 | [
[
"Jannes",
"Gil",
""
]
] | It is widely hoped that quantum gravity will shed light on the question of the origin of time in physics. The currently dominant approaches to a candidate quantum theory of gravity have naturally evolved from general relativity, on the one hand, and from particle physics, on the other hand. A third important branch of ... |
2302.00529 | Jo\'as Ven\^ancio | Jo\'as Ven\^ancio | On the quasinormal modes in generalized Nariai spacetimes | 114 pages, 7 figures. arXiv admin note: text overlap with
arXiv:1804.05953 | This PhD thesis was published as a book by Lambert Academic
Publishing (2021). ISBN: 978-6203840384 | null | null | gr-qc hep-th math-ph math.MP | http://creativecommons.org/licenses/by/4.0/ | Quasinormal modes are eigenmodes of dissipative systems. For instance, if a
spacetime with an event or cosmological horizon is perturbed from its
equilibrium state, quasinormal modes arise as damped oscillations with a
spectrum of complex frequencies, called quasinormal frequencies, that depends
just on the charges w... | [
{
"created": "Wed, 1 Feb 2023 15:57:43 GMT",
"version": "v1"
}
] | 2023-02-02 | [
[
"Venâncio",
"Joás",
""
]
] | Quasinormal modes are eigenmodes of dissipative systems. For instance, if a spacetime with an event or cosmological horizon is perturbed from its equilibrium state, quasinormal modes arise as damped oscillations with a spectrum of complex frequencies, called quasinormal frequencies, that depends just on the charges whi... |
gr-qc/0511091 | Jerry B. Griffiths | J. B. Griffiths and J. Podolsky | A new look at the Plebanski-Demianski family of solutions | 33 pages, 2 figures. To appear in Int. J. Mod. Phys. D | Int.J.Mod.Phys. D15 (2006) 335-370 | 10.1142/S0218271806007742 | null | gr-qc | null | The Plebanski-Demianski metric, and those that can be obtained from it by
taking coordinate transformations in certain limits, include the complete
family of space-times of type D with an aligned electromagnetic field and a
possibly non-zero cosmological constant. Starting with a new form of the line
element which is... | [
{
"created": "Wed, 16 Nov 2005 17:24:27 GMT",
"version": "v1"
}
] | 2009-11-11 | [
[
"Griffiths",
"J. B.",
""
],
[
"Podolsky",
"J.",
""
]
] | The Plebanski-Demianski metric, and those that can be obtained from it by taking coordinate transformations in certain limits, include the complete family of space-times of type D with an aligned electromagnetic field and a possibly non-zero cosmological constant. Starting with a new form of the line element which is b... |
gr-qc/0305086 | Maria da Conceicao Bento | M.C. Bento, O. Bertolami and A.A. Sen | Generalized Chaplygin Gas Model: Dark Energy - Dark Matter Unification
and CMBR Constraints | 9 pages, 2 figures; essay selected for an honorable mention by the
Gravity Research Foundation, 2003 | Gen.Rel.Grav.35:2063-2069,2003 | 10.1023/A:1026207312105 | null | gr-qc | null | The generalized Chaplygin gas (GCG) model allows for an unified description
of the recent accelerated expansion of the Universe and the evolution of energy
density perturbations. This dark energy - dark matter unification is achieved
through an exotic background fluid whose equation of state is given by $p = -
A/\rho... | [
{
"created": "Thu, 22 May 2003 14:47:16 GMT",
"version": "v1"
}
] | 2014-11-17 | [
[
"Bento",
"M. C.",
""
],
[
"Bertolami",
"O.",
""
],
[
"Sen",
"A. A.",
""
]
] | The generalized Chaplygin gas (GCG) model allows for an unified description of the recent accelerated expansion of the Universe and the evolution of energy density perturbations. This dark energy - dark matter unification is achieved through an exotic background fluid whose equation of state is given by $p = - A/\rho^{... |
1904.09713 | Nikolaos Dimakis | N. Dimakis, A. Paliathanasis, Petros A. Terzis and T. Christodoulakis | Cosmological Solutions in Multiscalar Field Theory | 15 pages, 3 figures, Latex2e source file, revised to agree with the
accepted EPJC version | null | 10.1140/epjc/s10052-019-7130-8 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider a cosmological model with two scalar fields minimally coupled to
gravity which have a mixed kinetic term. Hence, Chiral cosmology is included in
our analysis. The coupling function and the potential function, which depend on
one of the fields, characterize the model we study. We prove the existence of
exa... | [
{
"created": "Mon, 22 Apr 2019 03:55:29 GMT",
"version": "v1"
},
{
"created": "Fri, 12 Jul 2019 01:22:46 GMT",
"version": "v2"
}
] | 2019-09-04 | [
[
"Dimakis",
"N.",
""
],
[
"Paliathanasis",
"A.",
""
],
[
"Terzis",
"Petros A.",
""
],
[
"Christodoulakis",
"T.",
""
]
] | We consider a cosmological model with two scalar fields minimally coupled to gravity which have a mixed kinetic term. Hence, Chiral cosmology is included in our analysis. The coupling function and the potential function, which depend on one of the fields, characterize the model we study. We prove the existence of exact... |
1705.06941 | Arpita Mitra | Rabin Banerjee, Sumanta Chakraborty, Arpita Mitra, Pradip Mukherjee | Cosmological implications of shift symmetric Galileon field | Revised Version; Accepted in PRD; 20 pages; 1 figure | Phys. Rev. D 96, 064023 (2017) | 10.1103/PhysRevD.96.064023 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A ghost-free metric formulation of the recently proposed covariant Galileon
model \cite{RPgal} which retains the internal shift symmetry has been
constructed. This presents a new result because the covariant Galileon models
introduced so far in the literature lacks the full Galileon symmetry. We
demonstrate that the ... | [
{
"created": "Fri, 19 May 2017 11:32:20 GMT",
"version": "v1"
},
{
"created": "Wed, 23 Aug 2017 16:07:15 GMT",
"version": "v2"
}
] | 2017-09-20 | [
[
"Banerjee",
"Rabin",
""
],
[
"Chakraborty",
"Sumanta",
""
],
[
"Mitra",
"Arpita",
""
],
[
"Mukherjee",
"Pradip",
""
]
] | A ghost-free metric formulation of the recently proposed covariant Galileon model \cite{RPgal} which retains the internal shift symmetry has been constructed. This presents a new result because the covariant Galileon models introduced so far in the literature lacks the full Galileon symmetry. We demonstrate that the sa... |
gr-qc/0606004 | Edward Malec | Bogusz Kinasiewicz, Patryk Mach and Edward Malec | Selfgravitation in a general-relativistic accretion of steady fluids | Typos corrected. Talk given at the 42nd Karpacz Winter School of
Theoretical Physics, Ladek, Poland February 2006 on Current Mathematical
Topics in Gravitation and Cosmology | Int.J.Geom.Meth.Mod.Phys.4:197-208,2007 | 10.1142/S0219887807001953 | null | gr-qc | null | The selfgravity of an infalling gas can alter significantly the accretion of
gases. In the case of spherically symmetric steady flows of polytropic perfect
fluids the mass accretion rate achieves maximal value when the mass of the
fluid is 1/3 of the total mass. There are two weakly accreting regimes, one
over-abunda... | [
{
"created": "Thu, 1 Jun 2006 17:23:07 GMT",
"version": "v1"
},
{
"created": "Tue, 20 Jun 2006 11:23:37 GMT",
"version": "v2"
}
] | 2008-11-26 | [
[
"Kinasiewicz",
"Bogusz",
""
],
[
"Mach",
"Patryk",
""
],
[
"Malec",
"Edward",
""
]
] | The selfgravity of an infalling gas can alter significantly the accretion of gases. In the case of spherically symmetric steady flows of polytropic perfect fluids the mass accretion rate achieves maximal value when the mass of the fluid is 1/3 of the total mass. There are two weakly accreting regimes, one over-abundant... |
2302.14653 | Th. M. Nieuwenhuizen | Theodorus Maria Nieuwenhuizen | Exact solutions for black holes with a smooth quantum core | 29 pages, 8 figures | null | null | null | gr-qc astro-ph.GA | http://creativecommons.org/licenses/by-nc-nd/4.0/ | A class of exact solutions are presented for the interior of black holes of
solar mass and beyond. In a core enclosed by the inner horizon, the binding
energy released by dissolution of the pre-collapse nuclei is stored in
electrostatic and zero point energy. Gravitational collapse is prevented by
their negative pres... | [
{
"created": "Mon, 27 Feb 2023 18:09:42 GMT",
"version": "v1"
}
] | 2023-03-01 | [
[
"Nieuwenhuizen",
"Theodorus Maria",
""
]
] | A class of exact solutions are presented for the interior of black holes of solar mass and beyond. In a core enclosed by the inner horizon, the binding energy released by dissolution of the pre-collapse nuclei is stored in electrostatic and zero point energy. Gravitational collapse is prevented by their negative pressu... |
1306.1489 | Eyo Ita III | Ching-Yi Chou, Eyo Ita, Chopin Soo | Affine group formulation of the Standard Model coupled to gravity | 9 pages | Annals of Physics 343 (2014), pp. 153-163 | 10.1016/j.aop.2014.01.017 | REP12 | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | This work demonstrates that a complete description of the interaction of
matter and all forces, gravitational and non-gravitational, can in fact be
realized within a quantum affine algebraic framework. Using the affine group
formalism, we construct elements of a physical Hilbert space for full,
Lorentzian quantum gra... | [
{
"created": "Thu, 6 Jun 2013 17:49:53 GMT",
"version": "v1"
},
{
"created": "Sat, 8 Jun 2013 19:17:26 GMT",
"version": "v2"
},
{
"created": "Fri, 31 Jan 2014 12:59:36 GMT",
"version": "v3"
},
{
"created": "Thu, 13 Mar 2014 12:50:41 GMT",
"version": "v4"
}
] | 2015-06-16 | [
[
"Chou",
"Ching-Yi",
""
],
[
"Ita",
"Eyo",
""
],
[
"Soo",
"Chopin",
""
]
] | This work demonstrates that a complete description of the interaction of matter and all forces, gravitational and non-gravitational, can in fact be realized within a quantum affine algebraic framework. Using the affine group formalism, we construct elements of a physical Hilbert space for full, Lorentzian quantum gravi... |
2105.05047 | Fatemeh Naeimipour | Behrouz Mirza, Fatemeh Naeimipour and Masoumeh Tavakoli | Joule-Thomson expansion of the quasitopological black holes | 14 pages,8 figures,53 Reference | Frontiers in Physics 9 (2021) 628727 | 10.3389/fphy.2021.628727 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper, we investigate the thermal stability and Joule-Thomson
expansion of some new qusitopological black hole solutions. We first study the
higher-dimensional static quasitopological black hole solutions in the presence
of Born-Infeld, exponential and logarithmic nonlinear electrodynamics. The
stable regions... | [
{
"created": "Sun, 9 May 2021 16:49:31 GMT",
"version": "v1"
}
] | 2021-05-13 | [
[
"Mirza",
"Behrouz",
""
],
[
"Naeimipour",
"Fatemeh",
""
],
[
"Tavakoli",
"Masoumeh",
""
]
] | In this paper, we investigate the thermal stability and Joule-Thomson expansion of some new qusitopological black hole solutions. We first study the higher-dimensional static quasitopological black hole solutions in the presence of Born-Infeld, exponential and logarithmic nonlinear electrodynamics. The stable regions o... |
1106.1805 | Scott Robertson | Scott James Robertson | Hawking Radiation in Dispersive Media | PhD thesis, 221 pages, 53 figures | null | null | null | gr-qc physics.optics | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Hawking radiation, despite its presence in theoretical physics for over
thirty years, remains elusive and undetected. It also suffers, in its original
context of gravitational black holes, from conceptual difficulties. Of
particular note is the trans-Planckian problem, which is concerned with the
apparent origin of t... | [
{
"created": "Thu, 9 Jun 2011 13:27:30 GMT",
"version": "v1"
}
] | 2011-06-10 | [
[
"Robertson",
"Scott James",
""
]
] | Hawking radiation, despite its presence in theoretical physics for over thirty years, remains elusive and undetected. It also suffers, in its original context of gravitational black holes, from conceptual difficulties. Of particular note is the trans-Planckian problem, which is concerned with the apparent origin of the... |
1605.09094 | Miguel Campiglia | Miguel Campiglia, Alok Laddha | Sub-subleading soft gravitons: New symmetries of quantum gravity? | 5 pages | null | 10.1016/j.physletb.2016.11.046 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Due to seminal works of Weinberg, Cachazo and Strominger we know that tree
level quantum gravity amplitudes satisfy three factorization constraints.
Building on previous works which relate two of these constraints to symmetries
of quantum gravity at null infinity, we present rather strong evidence that the
third cons... | [
{
"created": "Mon, 30 May 2016 03:37:04 GMT",
"version": "v1"
}
] | 2017-02-01 | [
[
"Campiglia",
"Miguel",
""
],
[
"Laddha",
"Alok",
""
]
] | Due to seminal works of Weinberg, Cachazo and Strominger we know that tree level quantum gravity amplitudes satisfy three factorization constraints. Building on previous works which relate two of these constraints to symmetries of quantum gravity at null infinity, we present rather strong evidence that the third constr... |
gr-qc/0403107 | Alexander Poltorak | Alexander Poltorak | On the Energy Problem in General Relativity | 6 pages, LaTeX, GR10 Abstract (1983) | 10th International Conference on General Relativity and
Gravitation, Padova, 1983, Contributed Papers, Ed.: B. Bertotti, F. de
Felice, A. Pascolini. Vol.1, p. 609 | null | null | gr-qc | null | The Energy Problem (EP) in General Relativity (GR) is analyzed in the context
of GR's axiomatic inconsistencies. EP is classified according to its local and
global aspects. The local aspects of the EP include noncovariance of the
energy-momentum pseudotensor (EMPT) of the gravitational field, non-uniqueness
of the EM... | [
{
"created": "Thu, 25 Mar 2004 23:19:27 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Poltorak",
"Alexander",
""
]
] | The Energy Problem (EP) in General Relativity (GR) is analyzed in the context of GR's axiomatic inconsistencies. EP is classified according to its local and global aspects. The local aspects of the EP include noncovariance of the energy-momentum pseudotensor (EMPT) of the gravitational field, non-uniqueness of the EMPT... |
1707.08179 | Massimo Giovannini | Massimo Giovannini | Squeezed relic photons beyond the horizon | 33 pages. arXiv admin note: text overlap with arXiv:1608.05843 | Phys. Rev. D 96, 103513 (2017) | 10.1103/PhysRevD.96.103513 | null | gr-qc astro-ph.CO hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Owing to the analogy with the ordinary photons in the visible range of the
electromagnetic spectrum, the Glauber theory is generalized to address the
quantum coherence of the gauge field fluctuations parametrically amplified
during an inflationary stage of expansion. The first and second degrees of
quantum coherence ... | [
{
"created": "Sat, 22 Jul 2017 14:08:54 GMT",
"version": "v1"
}
] | 2017-11-20 | [
[
"Giovannini",
"Massimo",
""
]
] | Owing to the analogy with the ordinary photons in the visible range of the electromagnetic spectrum, the Glauber theory is generalized to address the quantum coherence of the gauge field fluctuations parametrically amplified during an inflationary stage of expansion. The first and second degrees of quantum coherence of... |
2209.08748 | Mark Klehfoth | Mark G. Klehfoth and Robert M. Wald | Local and Covariant Flow Relations for OPE Coefficients in Lorentzian
Spacetimes | 115 pages, 1 figure (shortened abstract; full abstract in paper) | null | null | null | gr-qc hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | For Euclidean quantum field theories, Holland and Hollands have shown
operator product expansion (OPE) coefficients satisfy "flow equations": For
interaction parameter $\lambda$, the partial derivative of any OPE coefficient
with respect to $\lambda$ is given by an integral over Euclidean space of a sum
of products o... | [
{
"created": "Mon, 19 Sep 2022 03:59:08 GMT",
"version": "v1"
}
] | 2022-09-20 | [
[
"Klehfoth",
"Mark G.",
""
],
[
"Wald",
"Robert M.",
""
]
] | For Euclidean quantum field theories, Holland and Hollands have shown operator product expansion (OPE) coefficients satisfy "flow equations": For interaction parameter $\lambda$, the partial derivative of any OPE coefficient with respect to $\lambda$ is given by an integral over Euclidean space of a sum of products of ... |
2004.10001 | Andrew Matas | Andrew Matas, Tim Dietrich, Alessandra Buonanno, Tanja Hinderer,
Michael P\"urrer, Francois Foucart, Michael Boyle, Matthew D. Duez, Lawrence
E. Kidder, Harald P. Pfeiffer, Mark A. Scheel | An aligned-spin neutron-star--black-hole waveform model based on the
effective-one-body approach and numerical-relativity simulations | 18 pages, 10 Figures | Phys. Rev. D 102, 043023 (2020) | 10.1103/PhysRevD.102.043023 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | After the discovery of gravitational waves from binary black holes (BBHs) and
binary neutron stars (BNSs) with the LIGO and Virgo detectors,
neutron-star--black-holes (NSBHs) are the natural next class of binary systems
to be observed. In this work, we develop a waveform model for aligned-spin
neutron-star--black-hol... | [
{
"created": "Tue, 21 Apr 2020 13:43:34 GMT",
"version": "v1"
},
{
"created": "Sun, 21 Feb 2021 18:12:12 GMT",
"version": "v2"
}
] | 2021-02-23 | [
[
"Matas",
"Andrew",
""
],
[
"Dietrich",
"Tim",
""
],
[
"Buonanno",
"Alessandra",
""
],
[
"Hinderer",
"Tanja",
""
],
[
"Pürrer",
"Michael",
""
],
[
"Foucart",
"Francois",
""
],
[
"Boyle",
"Michael",
""
],
... | After the discovery of gravitational waves from binary black holes (BBHs) and binary neutron stars (BNSs) with the LIGO and Virgo detectors, neutron-star--black-holes (NSBHs) are the natural next class of binary systems to be observed. In this work, we develop a waveform model for aligned-spin neutron-star--black-holes... |
0906.0668 | Hosein Haghi | Y. Sobouti, A. Hasani Zonoozi, H. Haghi | Tully-Fisher relation, key to dark matter companion of baryonic matter | 1 figure, 5 pages, submitted to A&A | Astron.Astrophys.507:635-638,2009 | 10.1051/0004-6361/200912571 | null | gr-qc astro-ph.GA | http://creativecommons.org/licenses/publicdomain/ | Rotation curves of spiral galaxies \emph{i}) fall off much less steeply than
the Keplerian curves do, and \emph{ii}) have asymptotic speeds almost
proportional to the fourth root of the mass of the galaxy, the Tully-Fisher
relation. These features alone are sufficient for assigning a dark companion to
the galaxy in a... | [
{
"created": "Wed, 3 Jun 2009 09:31:41 GMT",
"version": "v1"
},
{
"created": "Wed, 30 Dec 2009 08:37:37 GMT",
"version": "v2"
}
] | 2010-11-02 | [
[
"Sobouti",
"Y.",
""
],
[
"Zonoozi",
"A. Hasani",
""
],
[
"Haghi",
"H.",
""
]
] | Rotation curves of spiral galaxies \emph{i}) fall off much less steeply than the Keplerian curves do, and \emph{ii}) have asymptotic speeds almost proportional to the fourth root of the mass of the galaxy, the Tully-Fisher relation. These features alone are sufficient for assigning a dark companion to the galaxy in an ... |
gr-qc/9604034 | Fernando C. Lombardo | Mario Castagnino | The Mathematical Structure of Superspace as a Consequence of Time
Asymmetry | 45 pages, latex, no figures | Phys.Rev.D57:750-767,1998 | 10.1103/PhysRevD.57.750 | null | gr-qc | null | It is demonstrated how a convenient choice of the mathematical structure of
the quantum cosmology superspace, precisely the definition of a convenient
regular state superspace and the restriction of the dynamics to this space,
yields directly to an irreversible evolution, in the classical (and
semiclassical) phase of... | [
{
"created": "Wed, 17 Apr 1996 20:25:06 GMT",
"version": "v1"
}
] | 2010-11-19 | [
[
"Castagnino",
"Mario",
""
]
] | It is demonstrated how a convenient choice of the mathematical structure of the quantum cosmology superspace, precisely the definition of a convenient regular state superspace and the restriction of the dynamics to this space, yields directly to an irreversible evolution, in the classical (and semiclassical) phase of t... |
1810.06789 | Eric Ling | Eric Ling | The Big Bang is a Coordinate Singularity for $k = -1$ Inflationary FLRW
Spacetimes | 46 pages, 20 figures, v3 to appear in Foundations of Physics | null | 10.1007/s10701-020-00335-7 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We show that the big bang is a coordinate singularity for a large class of $k
= -1$ inflationary FLRW spacetimes which we have dubbed 'Milne-like.' By
introducing a new set of coordinates, the big bang appears as a past boundary
of the universe where the metric is no longer degenerate -- a result which has
already be... | [
{
"created": "Tue, 16 Oct 2018 01:59:36 GMT",
"version": "v1"
},
{
"created": "Wed, 30 Jan 2019 18:43:33 GMT",
"version": "v2"
},
{
"created": "Thu, 20 Feb 2020 12:33:45 GMT",
"version": "v3"
}
] | 2020-03-12 | [
[
"Ling",
"Eric",
""
]
] | We show that the big bang is a coordinate singularity for a large class of $k = -1$ inflationary FLRW spacetimes which we have dubbed 'Milne-like.' By introducing a new set of coordinates, the big bang appears as a past boundary of the universe where the metric is no longer degenerate -- a result which has already been... |
1110.5480 | Yongge Ma | Li Qin and Yongge Ma | Coherent State Functional Integrals in Quantum Cosmology | 16 pages, errors corrected, published version in PRD | Phys. Rev. D 85 (2012), 063515 | 10.1103/PhysRevD.85.063515 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Coherent state functional integrals for the minisuperspace models of quantum
cosmology are studied. By the well-established canonical theories, the
transition amplitudes in the path-integral representations of Wheeler-DeWitt
quantum cosmology and loop quantum cosmology can be formulated through group
averaging. The e... | [
{
"created": "Tue, 25 Oct 2011 12:18:54 GMT",
"version": "v1"
},
{
"created": "Wed, 28 Mar 2012 13:46:41 GMT",
"version": "v2"
}
] | 2015-05-30 | [
[
"Qin",
"Li",
""
],
[
"Ma",
"Yongge",
""
]
] | Coherent state functional integrals for the minisuperspace models of quantum cosmology are studied. By the well-established canonical theories, the transition amplitudes in the path-integral representations of Wheeler-DeWitt quantum cosmology and loop quantum cosmology can be formulated through group averaging. The eff... |
1806.09653 | Dmitriy Grad | D. A. Grad, S. A. Paston, A. A. Sheykin | Definitions of energy for the description of gravity as the splitting
theory | This version matches the published one | D. A. Grad et al 2018 J. Phys.: Conf. Ser. 1038 012007 | 10.1088/1742-6596/1038/1/012007 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the definitions of energy, naturally arising in the splitting
theory, which is the field theoretic formulation of the Regge-Teitelboim
gravity. The latter regards our spacetime as a surface embedded in a flat bulk.
The splitting theory describes embedded spacetime in the language of the some
field theory in ... | [
{
"created": "Mon, 25 Jun 2018 18:28:04 GMT",
"version": "v1"
}
] | 2018-06-27 | [
[
"Grad",
"D. A.",
""
],
[
"Paston",
"S. A.",
""
],
[
"Sheykin",
"A. A.",
""
]
] | We study the definitions of energy, naturally arising in the splitting theory, which is the field theoretic formulation of the Regge-Teitelboim gravity. The latter regards our spacetime as a surface embedded in a flat bulk. The splitting theory describes embedded spacetime in the language of the some field theory in a ... |
1903.09611 | Maksym Teslyk Mr | M.v. Teslyk, O.M. Teslyk, and L.V. Zadorozhna | Unruh effect and entropy of Schwarzschild black hole | null | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider Unruh effect as an origin for Schwarzschild black hole entropy
thus implying unitarian evolution of gravity. We simulate the black hole by set
of Unruh horizons and estimate total entropy of the system. Dependence on mass
and spin of the emitted particles is taken into account. The obtained results
may be... | [
{
"created": "Fri, 22 Mar 2019 17:11:16 GMT",
"version": "v1"
}
] | 2019-03-25 | [
[
"Teslyk",
"M. v.",
""
],
[
"Teslyk",
"O. M.",
""
],
[
"Zadorozhna",
"L. V.",
""
]
] | We consider Unruh effect as an origin for Schwarzschild black hole entropy thus implying unitarian evolution of gravity. We simulate the black hole by set of Unruh horizons and estimate total entropy of the system. Dependence on mass and spin of the emitted particles is taken into account. The obtained results may be e... |
gr-qc/0701018 | Felix Finster | Felix Finster, Niky Kamran, Joel Smoller, Shing-Tung Yau | A Rigorous Treatment of Energy Extraction from a Rotating Black Hole | 19 pages, LaTeX, proof of Propositions 2.3 and 3.1 given in more
detail | Commun.Math.Phys.287:829-847,2009 | 10.1007/s00220-009-0730-7 | null | gr-qc math-ph math.MP | null | The Cauchy problem is considered for the scalar wave equation in the Kerr
geometry. We prove that by choosing a suitable wave packet as initial data, one
can extract energy from the black hole, thereby putting supperradiance, the
wave analogue of the Penrose process, into a rigorous mathematical framework.
We quantif... | [
{
"created": "Mon, 1 Jan 2007 21:59:50 GMT",
"version": "v1"
},
{
"created": "Mon, 16 Jul 2007 09:44:20 GMT",
"version": "v2"
},
{
"created": "Thu, 22 May 2008 09:44:15 GMT",
"version": "v3"
}
] | 2014-11-17 | [
[
"Finster",
"Felix",
""
],
[
"Kamran",
"Niky",
""
],
[
"Smoller",
"Joel",
""
],
[
"Yau",
"Shing-Tung",
""
]
] | The Cauchy problem is considered for the scalar wave equation in the Kerr geometry. We prove that by choosing a suitable wave packet as initial data, one can extract energy from the black hole, thereby putting supperradiance, the wave analogue of the Penrose process, into a rigorous mathematical framework. We quantify ... |
1811.04490 | Travis Robson | Travis Robson, Neil J. Cornish | Detecting Gravitational Wave Bursts with LISA in the presence of
Instrumental Glitches | 15 pages, 9 figures | Phys. Rev. D 99, 024019 (2019) | 10.1103/PhysRevD.99.024019 | null | gr-qc astro-ph.IM | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The Laser Interferometer Space Antenna (LISA) will open a rich discovery
space in the milli-Hertz gravitational wave band. In addition to the
anticipated signals from many millions of binary systems, this band may contain
new and previously un-imagined sources for which we currently have no models.
To detect unmodele... | [
{
"created": "Sun, 11 Nov 2018 22:01:38 GMT",
"version": "v1"
}
] | 2019-01-16 | [
[
"Robson",
"Travis",
""
],
[
"Cornish",
"Neil J.",
""
]
] | The Laser Interferometer Space Antenna (LISA) will open a rich discovery space in the milli-Hertz gravitational wave band. In addition to the anticipated signals from many millions of binary systems, this band may contain new and previously un-imagined sources for which we currently have no models. To detect unmodeled ... |
1012.0645 | Jiliang Jing | Mengjie Wang, Songbai Chen, Jiliang Jing | Second-order phase transition of Kehagias-Sfetsos black hole in deformed
H\v{o}rava-Lifshitz gravity | 9 pages, no figure, accepted for publication in PLB | Phys.Lett.B695:401-404,2011 | 10.1016/j.physletb.2010.11.055 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the second-order phase transition (SOPT) for the spherically
symmetric Kehagias-Sfetsos (KS) black hole in the deformed H\v{o}rava-Lifshitz
gravity by applying the methods of equilibrium and non-equilibrium
fluctuations. We find that, although the KS black hole has only one mass
parameter as the usual Schwar... | [
{
"created": "Fri, 3 Dec 2010 06:38:54 GMT",
"version": "v1"
},
{
"created": "Tue, 14 Dec 2010 10:15:20 GMT",
"version": "v2"
}
] | 2011-10-19 | [
[
"Wang",
"Mengjie",
""
],
[
"Chen",
"Songbai",
""
],
[
"Jing",
"Jiliang",
""
]
] | We study the second-order phase transition (SOPT) for the spherically symmetric Kehagias-Sfetsos (KS) black hole in the deformed H\v{o}rava-Lifshitz gravity by applying the methods of equilibrium and non-equilibrium fluctuations. We find that, although the KS black hole has only one mass parameter as the usual Schwarzs... |
gr-qc/9210013 | Patrick Brady | Warren G. Anderson, Patrick R. Brady, Werner Israel, and Sharon M.
Morsink | Quantum Effects in Black Hole Interiors | 13 pages, 1 figure (not included), RevTex | Phys.Rev.Lett. 70 (1993) 1041-1044 | 10.1103/PhysRevLett.70.1041 | Alberta-Thy-36-92 | gr-qc | null | The Weyl curvature inside a black hole formed in a generic collapse grows,
classically without bound, near to the inner horizon, due to partial absorption
and blueshifting of the radiative tail of the collapse. Using a spherical
model, we examine how this growth is modified by quantum effects of conformally
coupled m... | [
{
"created": "Fri, 23 Oct 1992 17:27:15 GMT",
"version": "v1"
}
] | 2009-10-22 | [
[
"Anderson",
"Warren G.",
""
],
[
"Brady",
"Patrick R.",
""
],
[
"Israel",
"Werner",
""
],
[
"Morsink",
"Sharon M.",
""
]
] | The Weyl curvature inside a black hole formed in a generic collapse grows, classically without bound, near to the inner horizon, due to partial absorption and blueshifting of the radiative tail of the collapse. Using a spherical model, we examine how this growth is modified by quantum effects of conformally coupled mas... |
2309.10934 | Peter Martin | Michael Bishop, Peter Martin, Douglas Singleton | Quantum gravity, the cosmological constant, and parity transformation | 10 pages, revtex-4, 0 figures, published in PLB | Phys.Lett.B 845 (2023) 138173 | 10.1016/j.physletb.2023.138173 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | One of the leading issues in quantum field theory and cosmology is the
mismatch between the observed and calculated values for the cosmological
constant in Einstein's field equations of up to 120 orders of magnitude. In
this paper, we discuss new methods to potentially bridge this chasm using the
generalized uncertai... | [
{
"created": "Tue, 19 Sep 2023 21:11:27 GMT",
"version": "v1"
}
] | 2023-09-21 | [
[
"Bishop",
"Michael",
""
],
[
"Martin",
"Peter",
""
],
[
"Singleton",
"Douglas",
""
]
] | One of the leading issues in quantum field theory and cosmology is the mismatch between the observed and calculated values for the cosmological constant in Einstein's field equations of up to 120 orders of magnitude. In this paper, we discuss new methods to potentially bridge this chasm using the generalized uncertaint... |
1709.02259 | Muhammad Sharif | M. Sharif and Arfa Waseem | On the Stability of Einstein Universe in f(R,T,R_{\mu\nu}T^{\mu\nu})
Gravity | 18 pages, 4 figures | Mod. Phys. Lett. A 33(2018)1850216 | 10.1142/S0217732318502164 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | This paper investigates the existence and stability of Einstein universe in
the context of $f(R,T,Q)$ gravity, where $Q=R_{\mu\nu}T^{\mu\nu}$. Considering
linear homogeneous perturbations around scale factor and energy density, we
formulate static as well as perturbed field equations. We parameterize the
stability re... | [
{
"created": "Wed, 6 Sep 2017 05:30:06 GMT",
"version": "v1"
}
] | 2018-12-19 | [
[
"Sharif",
"M.",
""
],
[
"Waseem",
"Arfa",
""
]
] | This paper investigates the existence and stability of Einstein universe in the context of $f(R,T,Q)$ gravity, where $Q=R_{\mu\nu}T^{\mu\nu}$. Considering linear homogeneous perturbations around scale factor and energy density, we formulate static as well as perturbed field equations. We parameterize the stability regi... |
2004.14206 | Milad Hajebrahimi | Milad Hajebrahimi and Kourosh Nozari | A quantum-corrected approach to black hole radiation via a tunneling
process | 14 pages, 3 figures | Progress of Theoretical and Experimental Physics, 2020(4), 043E03 | 10.1093/ptep/ptaa032 | null | gr-qc hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In the language of black hole physics, Hawking radiation is one of the most
controversial subjects about which there exist lots of puzzles, including the
information loss problem and the question of whether this radiation is thermal
or not. In this situation, a possible way to face these problems is to bring
quantum ... | [
{
"created": "Tue, 28 Apr 2020 13:06:41 GMT",
"version": "v1"
}
] | 2020-04-30 | [
[
"Hajebrahimi",
"Milad",
""
],
[
"Nozari",
"Kourosh",
""
]
] | In the language of black hole physics, Hawking radiation is one of the most controversial subjects about which there exist lots of puzzles, including the information loss problem and the question of whether this radiation is thermal or not. In this situation, a possible way to face these problems is to bring quantum ef... |
1711.10502 | Vitor Cardoso | Vitor Cardoso, Joao L. Costa, Kyriakos Destounis, Peter Hintz, Aron
Jansen | Quasinormal modes and Strong Cosmic Censorship | To appear in Physical Review Letters, as an Editors' Suggestion | Phys. Rev. Lett. 120, 031103 (2018) | 10.1103/PhysRevLett.120.031103 | null | gr-qc hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The fate of Cauchy horizons, such as those found inside charged black holes,
is intrinsically connected to the decay of small perturbations exterior to the
event horizon. As such, the validity of the strong cosmic censorship (SCC)
conjecture is tied to how effectively the exterior damps fluctuations. Here, we
study m... | [
{
"created": "Tue, 28 Nov 2017 19:00:06 GMT",
"version": "v1"
},
{
"created": "Thu, 11 Jan 2018 21:06:57 GMT",
"version": "v2"
}
] | 2018-01-24 | [
[
"Cardoso",
"Vitor",
""
],
[
"Costa",
"Joao L.",
""
],
[
"Destounis",
"Kyriakos",
""
],
[
"Hintz",
"Peter",
""
],
[
"Jansen",
"Aron",
""
]
] | The fate of Cauchy horizons, such as those found inside charged black holes, is intrinsically connected to the decay of small perturbations exterior to the event horizon. As such, the validity of the strong cosmic censorship (SCC) conjecture is tied to how effectively the exterior damps fluctuations. Here, we study mas... |
1306.2367 | Stefano Bertone | Stefano Bertone, Olivier Minazzoli, Mariateresa Crosta, Christophe Le
Poncin-Lafitte, Alberto Vecchiato, Marie-Christine Angonin | Time Transfer functions as a way to validate light propagation solutions
for space astrometry | 16 pages, submitted to CQG | null | 10.1088/0264-9381/31/1/015021 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Given the extreme accuracy of modern space astrometry, a precise relativistic
modeling of observations is required. Concerning light propagation, the
standard procedure is the solution of the null-geodesic equations. However,
another approach based on the Time Transfer Functions (TTF) has demonstrated
its capability ... | [
{
"created": "Mon, 10 Jun 2013 22:17:06 GMT",
"version": "v1"
}
] | 2013-11-26 | [
[
"Bertone",
"Stefano",
""
],
[
"Minazzoli",
"Olivier",
""
],
[
"Crosta",
"Mariateresa",
""
],
[
"Poncin-Lafitte",
"Christophe Le",
""
],
[
"Vecchiato",
"Alberto",
""
],
[
"Angonin",
"Marie-Christine",
""
]
] | Given the extreme accuracy of modern space astrometry, a precise relativistic modeling of observations is required. Concerning light propagation, the standard procedure is the solution of the null-geodesic equations. However, another approach based on the Time Transfer Functions (TTF) has demonstrated its capability to... |
1009.5231 | G. Dautcourt | G. Dautcourt | The lightcone of G\"odel-like spacetimes | 19 pages, 1 figure | Class.Quant.Grav.27:225024,2010 | 10.1088/0264-9381/27/22/225024 | AEI-2010-151 | gr-qc | http://creativecommons.org/licenses/by-nc-sa/3.0/ | A study of the lightcone of the G\"odel universe is extended to the so-called
G\"odel-like spacetimes. This family of highly symmetric 4-D Lorentzian spaces
is defined by metrics of the form $ds^2=-(dt+H(x)dy)^2+D^2(x)dy^2+dx^2+dz^2$,
together with the requirement of spacetime homogeneity, and includes the
G\"odel me... | [
{
"created": "Mon, 27 Sep 2010 11:49:43 GMT",
"version": "v1"
}
] | 2011-03-28 | [
[
"Dautcourt",
"G.",
""
]
] | A study of the lightcone of the G\"odel universe is extended to the so-called G\"odel-like spacetimes. This family of highly symmetric 4-D Lorentzian spaces is defined by metrics of the form $ds^2=-(dt+H(x)dy)^2+D^2(x)dy^2+dx^2+dz^2$, together with the requirement of spacetime homogeneity, and includes the G\"odel metr... |
1711.09270 | Vasilis Oikonomou | K. Kleidis, V.K. Oikonomou | Loop Quantum Cosmology Corrected Gauss-Bonnet Singular Cosmology | IJGMMP Accepted | null | 10.1142/S0219887818500640 | null | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this work we investigate which Loop Quantum Cosmology corrected
Gauss-Bonnet $F(\mathcal{G})$ gravity can realize two singular cosmological
scenarios, the intermediate inflation and the singular bounce scenarios. The
intermediate inflation scenario has a Type III sudden singularity at $t=0$,
while the singular bou... | [
{
"created": "Sat, 25 Nov 2017 18:18:16 GMT",
"version": "v1"
}
] | 2018-03-28 | [
[
"Kleidis",
"K.",
""
],
[
"Oikonomou",
"V. K.",
""
]
] | In this work we investigate which Loop Quantum Cosmology corrected Gauss-Bonnet $F(\mathcal{G})$ gravity can realize two singular cosmological scenarios, the intermediate inflation and the singular bounce scenarios. The intermediate inflation scenario has a Type III sudden singularity at $t=0$, while the singular bounc... |
2302.13634 | Marius Adrian Oancea | Lars Andersson, Marius A. Oancea | Spin Hall effects in the sky | null | Class. Quantum Grav. 40 154002 (2023) | 10.1088/1361-6382/ace021 | null | gr-qc physics.optics | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In many areas of physics, the propagation of wave packets carrying intrinsic
angular momentum is generally influenced by spin-orbit interactions. This is
the main mechanism behind spin Hall effects, which result in wave packets
following spin-dependent trajectories. Spin Hall effects have been observed in
several exp... | [
{
"created": "Mon, 27 Feb 2023 09:59:07 GMT",
"version": "v1"
},
{
"created": "Mon, 10 Jul 2023 13:08:11 GMT",
"version": "v2"
}
] | 2023-07-11 | [
[
"Andersson",
"Lars",
""
],
[
"Oancea",
"Marius A.",
""
]
] | In many areas of physics, the propagation of wave packets carrying intrinsic angular momentum is generally influenced by spin-orbit interactions. This is the main mechanism behind spin Hall effects, which result in wave packets following spin-dependent trajectories. Spin Hall effects have been observed in several exper... |
2405.09124 | Kirill Bronnikov | S.V. Bolokhov, K.A. Bronnikov, M.V. Skvortsova | A regular center instead of a black bounce | 16 pages, 6 figures | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The widely discussed ``black-bounce'' mechanism of removing a singularity at
$r=0$ in a spherically symmetric space-time, proposed by Simpson and Visser,
consists in removing the point $r=0$ and its close neighborhood, resulting in
emergence of a regular minimum of the spherical radius that can be a wormhole
throat o... | [
{
"created": "Wed, 15 May 2024 06:40:32 GMT",
"version": "v1"
}
] | 2024-05-16 | [
[
"Bolokhov",
"S. V.",
""
],
[
"Bronnikov",
"K. A.",
""
],
[
"Skvortsova",
"M. V.",
""
]
] | The widely discussed ``black-bounce'' mechanism of removing a singularity at $r=0$ in a spherically symmetric space-time, proposed by Simpson and Visser, consists in removing the point $r=0$ and its close neighborhood, resulting in emergence of a regular minimum of the spherical radius that can be a wormhole throat or ... |
2008.12143 | Sergey Chervon | Sergey V. Chervon, J\'ulio C. Fabris and Igor V. Fomin | Black holes and wormholes in $f(R)$ gravity with a kinetic curvature
scalar | 25 pages. arXiv admin note: text overlap with arXiv:2005.11858 | Class.Quant.Grav. 38 (2021) 11, 115005 | 10.1088/1361-6382/abebf0 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the chiral self-gravitating model (CSGM) of a special type in the
spherically symmetric static spacetime in Einstein frame. Such CSGM is derived,
by virtue of Weyl conformal transformation, from a gravity model in the Jordan
frame corresponding to a modified $f(R)$ gravity with a kinetic scalar
curvature. We... | [
{
"created": "Tue, 25 Aug 2020 18:40:22 GMT",
"version": "v1"
},
{
"created": "Tue, 1 Mar 2022 14:16:50 GMT",
"version": "v2"
}
] | 2022-03-02 | [
[
"Chervon",
"Sergey V.",
""
],
[
"Fabris",
"Júlio C.",
""
],
[
"Fomin",
"Igor V.",
""
]
] | We study the chiral self-gravitating model (CSGM) of a special type in the spherically symmetric static spacetime in Einstein frame. Such CSGM is derived, by virtue of Weyl conformal transformation, from a gravity model in the Jordan frame corresponding to a modified $f(R)$ gravity with a kinetic scalar curvature. We i... |
1212.5806 | Francisco Lobo | Francisco S. N. Lobo, Foad Parsaei, Nematollah Riazi | New asymptotically flat phantom wormhole solutions | 7 pages, 2 figures. V2: 11 pages, 6 figures; two new solutions,
stability discussion and references added; to appear in PRD. V3: typos
corrected | Phys.Rev.D87:084030,2013 | 10.1103/PhysRevD.87.084030 | null | gr-qc astro-ph.HE hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A possible cause of the late-time cosmic acceleration is an exotic fluid with
an equation of state lying within the phantom regime, i.e., $w=p/\rho <-1$. The
latter violates the null energy condition, which is a fundamental ingredient in
wormhole physics. Thus, cosmic phantom energy may, in principle, provide a
natur... | [
{
"created": "Sun, 23 Dec 2012 15:26:34 GMT",
"version": "v1"
},
{
"created": "Thu, 28 Mar 2013 23:05:30 GMT",
"version": "v2"
},
{
"created": "Wed, 10 Apr 2013 08:14:12 GMT",
"version": "v3"
}
] | 2013-04-12 | [
[
"Lobo",
"Francisco S. N.",
""
],
[
"Parsaei",
"Foad",
""
],
[
"Riazi",
"Nematollah",
""
]
] | A possible cause of the late-time cosmic acceleration is an exotic fluid with an equation of state lying within the phantom regime, i.e., $w=p/\rho <-1$. The latter violates the null energy condition, which is a fundamental ingredient in wormhole physics. Thus, cosmic phantom energy may, in principle, provide a natural... |
2403.06886 | Shaobing Yuan | Shaobing Yuan, Changkai Luo, Zezhou Hu, Zhenyu Zhang, Bin Chen | QED Effects on Kerr-Newman Black Hole Shadows | 14 pages, 8 figures; v2: references added and minor revisions | null | null | null | gr-qc astro-ph.HE hep-th | http://creativecommons.org/licenses/by/4.0/ | Incorporating first-order QED effects, we explore the shadows of Kerr-Newman
black holes with a magnetic charge through the numerical backward ray-tracing
method. Our investigation accounts for both the direct influence of the
electromagnetic field on light rays and the distortion of the background
spacetime metric d... | [
{
"created": "Mon, 11 Mar 2024 16:43:09 GMT",
"version": "v1"
},
{
"created": "Tue, 26 Mar 2024 14:58:39 GMT",
"version": "v2"
}
] | 2024-03-27 | [
[
"Yuan",
"Shaobing",
""
],
[
"Luo",
"Changkai",
""
],
[
"Hu",
"Zezhou",
""
],
[
"Zhang",
"Zhenyu",
""
],
[
"Chen",
"Bin",
""
]
] | Incorporating first-order QED effects, we explore the shadows of Kerr-Newman black holes with a magnetic charge through the numerical backward ray-tracing method. Our investigation accounts for both the direct influence of the electromagnetic field on light rays and the distortion of the background spacetime metric due... |
2104.09019 | Naoki Sato | Naoki Sato | The Effect of Spacetime Curvature on Statistical Distributions | 23 pages, 5 figures | Class. Quantum Grav. 38 165003 (2021) | 10.1088/1361-6382/ac11a9 | null | gr-qc math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The Boltzmann distribution of an ideal gas is determined by the Hamiltonian
function generating single particle dynamics. Systems with higher complexity
often exhibit topological constraints, which are independent of the Hamiltonian
and may affect the shape of the distribution function as well. Here, we study a
furth... | [
{
"created": "Mon, 19 Apr 2021 02:30:13 GMT",
"version": "v1"
}
] | 2021-07-29 | [
[
"Sato",
"Naoki",
""
]
] | The Boltzmann distribution of an ideal gas is determined by the Hamiltonian function generating single particle dynamics. Systems with higher complexity often exhibit topological constraints, which are independent of the Hamiltonian and may affect the shape of the distribution function as well. Here, we study a further... |
2305.02004 | Jonatan Herrera | Sa\'ul Burgos, Jos\'e Luis Flores, J\'onatan Herrera | The c-completion of Lorentzian metric spaces | 29 pages, 2 figures | null | null | null | gr-qc math.DG | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Inspired by some Lorentzian versions of the notion of metric and length space
introduced by Kunzinger and S\"amman, and more recently, by M\"uller, and
Minguzzi and S\"uhr, we revisit the notion of Lorentzian metric space in order
to later construct the c-completion of these general objects. We not only prove
that th... | [
{
"created": "Wed, 3 May 2023 09:51:56 GMT",
"version": "v1"
},
{
"created": "Tue, 16 May 2023 16:25:03 GMT",
"version": "v2"
}
] | 2023-05-17 | [
[
"Burgos",
"Saúl",
""
],
[
"Flores",
"José Luis",
""
],
[
"Herrera",
"Jónatan",
""
]
] | Inspired by some Lorentzian versions of the notion of metric and length space introduced by Kunzinger and S\"amman, and more recently, by M\"uller, and Minguzzi and S\"uhr, we revisit the notion of Lorentzian metric space in order to later construct the c-completion of these general objects. We not only prove that this... |
0908.1295 | Sanjit Das | Sanjit Das, Kartik Prabhu, Sayan Kar | Ricci flow of unwarped and warped product manifolds | 25 pages, 25 figures, some figures replaced | Int.J.Geom.Meth.Mod.Phys.07:837-856,2010 | 10.1142/S0219887810004579 | null | gr-qc math.DG | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We analyse Ricci flow (normalised/un-normalised) of product manifolds
--unwarped as well as warped, through a study of generic examples. First, we
investigate such flows for the unwarped scenario with manifolds of the type
$\mathbb S^n\times \mathbb S^m$, $\mathbb S^n\times \mathbb H^m$, $\mathbb
H^m\times \mathbb H^... | [
{
"created": "Mon, 10 Aug 2009 10:28:50 GMT",
"version": "v1"
},
{
"created": "Wed, 16 Sep 2009 12:07:40 GMT",
"version": "v2"
}
] | 2011-05-09 | [
[
"Das",
"Sanjit",
""
],
[
"Prabhu",
"Kartik",
""
],
[
"Kar",
"Sayan",
""
]
] | We analyse Ricci flow (normalised/un-normalised) of product manifolds --unwarped as well as warped, through a study of generic examples. First, we investigate such flows for the unwarped scenario with manifolds of the type $\mathbb S^n\times \mathbb S^m$, $\mathbb S^n\times \mathbb H^m$, $\mathbb H^m\times \mathbb H^n$... |
1010.1792 | Valeri Frolov | Valeri Frolov | Applications of hidden symmetries to black hole physics | This is an extended version of the talks at NEB-14 conference
(June,Ioannina,Greece) and JGRG20 meeting (September, Kyoto, Japan) | null | 10.1088/1742-6596/283/1/012012 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | This work is a brief review of applications of hidden symmetries to black
hole physics. Symmetry is one of the most important concepts of the science. In
physics and mathematics the symmetry allows one to simplify a problem, and
often to make it solvable. According to the Noether theorem symmetries are
responsible fo... | [
{
"created": "Fri, 8 Oct 2010 22:41:56 GMT",
"version": "v1"
},
{
"created": "Wed, 13 Oct 2010 18:00:06 GMT",
"version": "v2"
}
] | 2015-05-20 | [
[
"Frolov",
"Valeri",
""
]
] | This work is a brief review of applications of hidden symmetries to black hole physics. Symmetry is one of the most important concepts of the science. In physics and mathematics the symmetry allows one to simplify a problem, and often to make it solvable. According to the Noether theorem symmetries are responsible for ... |
gr-qc/9912109 | Georgii Alekseev | G.A.Alekseev | Monodromy transform approach to solution of the Ernst equations in
General Relativity | 4 pages, 1 figure, LaTeX2e; based on a talk given at the
`International European Conference on Gravitation: Journ\'ees Relativistes
99.' Weimar, Germany, 12 - 17 Sep 1999; as submitted to Annalen der Physik
(Leipzig) | null | null | null | gr-qc math-ph math.MP nlin.SI solv-int | null | The approach, referred to as "monodromy transform", provides some general
base for solution of all known integrable space - time symmetry reductions of
Einstein equations for the case of pure vacuum gravitational fields, in the
presence of gravitationally interacting massless fields, as well as for some
string theory... | [
{
"created": "Mon, 27 Dec 1999 18:31:46 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Alekseev",
"G. A.",
""
]
] | The approach, referred to as "monodromy transform", provides some general base for solution of all known integrable space - time symmetry reductions of Einstein equations for the case of pure vacuum gravitational fields, in the presence of gravitationally interacting massless fields, as well as for some string theory i... |
1107.2025 | Bibekananda Nayak jr | Bibekananda Nayak and Mubasher Jamil | Effect of Vacuum Energy on Evolution of Primordial Black Holes in
Einstein Gravity | 9 pages, 3 figures | Phys. Lett. B Volume 709, Issue 3 (2012)118-122 | 10.1016/j.physletb.2012.02.010 | null | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the evolution of primordail black holes by considering present
universe is no more matter dominated rather vacuum energy dominated. We also
consider the accretion of radiation, matter and vacuum energy during respective
dominance period. In this scenario, we found that radiation accretion
efficiency should b... | [
{
"created": "Mon, 11 Jul 2011 13:34:12 GMT",
"version": "v1"
}
] | 2012-03-05 | [
[
"Nayak",
"Bibekananda",
""
],
[
"Jamil",
"Mubasher",
""
]
] | We study the evolution of primordail black holes by considering present universe is no more matter dominated rather vacuum energy dominated. We also consider the accretion of radiation, matter and vacuum energy during respective dominance period. In this scenario, we found that radiation accretion efficiency should be ... |
gr-qc/0105038 | Piotr Jaranowski | Thibault Damour, Piotr Jaranowski, and Gerhard Sch\"afer | Dimensional regularization of the gravitational interaction of point
masses | REVTeX, 8 pages, 1 figure; submitted to Phys. Lett. B | Phys.Lett.B513:147-155,2001 | 10.1016/S0370-2693(01)00642-6 | IHES/P/01/19 | gr-qc hep-th | null | We show how to use dimensional regularization to determine, within the
Arnowitt-Deser-Misner canonical formalism, the reduced Hamiltonian describing
the dynamics of two gravitationally interacting point masses. Implementing, at
the third post-Newtonian (3PN) accuracy, our procedure we find that dimensional
continuati... | [
{
"created": "Fri, 11 May 2001 08:01:53 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Damour",
"Thibault",
""
],
[
"Jaranowski",
"Piotr",
""
],
[
"Schäfer",
"Gerhard",
""
]
] | We show how to use dimensional regularization to determine, within the Arnowitt-Deser-Misner canonical formalism, the reduced Hamiltonian describing the dynamics of two gravitationally interacting point masses. Implementing, at the third post-Newtonian (3PN) accuracy, our procedure we find that dimensional continuation... |
2005.05757 | Naresh Dadhich | Naresh Dadhich | On causal structure of $4D$-Einstein-Gauss-Bonnet black hole | 4 pages, no figures, References added, matches with the published
version | Eur. Phys. J. {\bf C80}, 832 (2020) | null | null | gr-qc astro-ph.HE hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The recently proposed effective equation of motion for the $4D$-
Einstein-Gauss-Bonnet gravity admits a static black hole solution that has,
like the Rissner-Nordstr\"{o}m charged black hole, two horizons instead of one
for the Schwarzschild black hole. This means that the central singularity is
timelike instead of s... | [
{
"created": "Mon, 11 May 2020 11:39:23 GMT",
"version": "v1"
},
{
"created": "Sat, 16 May 2020 11:35:18 GMT",
"version": "v2"
},
{
"created": "Fri, 11 Sep 2020 03:53:49 GMT",
"version": "v3"
}
] | 2020-09-14 | [
[
"Dadhich",
"Naresh",
""
]
] | The recently proposed effective equation of motion for the $4D$- Einstein-Gauss-Bonnet gravity admits a static black hole solution that has, like the Rissner-Nordstr\"{o}m charged black hole, two horizons instead of one for the Schwarzschild black hole. This means that the central singularity is timelike instead of spa... |
1905.08642 | Saeed Fakhry | M. Heydari-Fard, S. Fakhry and S. N. Hasani | Perihelion advance and trajectory of charged test particles in
Reissner-Nordstrom field via the higher-order geodesic deviations | 12 pages, 1 figure | Journal of Advances in High Energy Physics (2019) | 10.1155/2019/1879568 | null | gr-qc hep-th | http://creativecommons.org/licenses/by-nc-sa/4.0/ | By using the higher-order geodesic deviation equations for charged particles,
we apply the method described by Kerner et.al. to calculate the perihelion
advance and trajectory of charged test particles in the Riessner-Nordstrom
spacetime. The effect of charge on the perihelion advance is studied and
compared the resu... | [
{
"created": "Mon, 20 May 2019 17:03:24 GMT",
"version": "v1"
}
] | 2019-06-05 | [
[
"Heydari-Fard",
"M.",
""
],
[
"Fakhry",
"S.",
""
],
[
"Hasani",
"S. N.",
""
]
] | By using the higher-order geodesic deviation equations for charged particles, we apply the method described by Kerner et.al. to calculate the perihelion advance and trajectory of charged test particles in the Riessner-Nordstrom spacetime. The effect of charge on the perihelion advance is studied and compared the result... |
2302.14480 | Peter M\'esz\'aros | Peter M\'esz\'aros | Evolution of perturbations in a universe with exotic solid-like matter | 19 pages, 3 figures | Physics of the Dark Universe 42 (2023) 101297 | 10.1016/j.dark.2023.101297 | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | We study cosmological perturbations in a universe with only one matter
component described by a triplet of fields. Configuration of these fields is
the same as for body coordinates of a solid, and they enter the matter
Lagrangian only through the kinetic term. We restrict ourselves only to cases
with constant pressur... | [
{
"created": "Tue, 28 Feb 2023 10:38:39 GMT",
"version": "v1"
},
{
"created": "Mon, 14 Aug 2023 08:28:35 GMT",
"version": "v2"
}
] | 2023-08-15 | [
[
"Mészáros",
"Peter",
""
]
] | We study cosmological perturbations in a universe with only one matter component described by a triplet of fields. Configuration of these fields is the same as for body coordinates of a solid, and they enter the matter Lagrangian only through the kinetic term. We restrict ourselves only to cases with constant pressure ... |
gr-qc/9906091 | Yutaka Hosotani | Jefferson Bjoraker and Yutaka Hosotani | Stable monopole and dyon solutions in the Einstein-Yang-Mills theory in
asymptotically anti-de Sitter Space | 9 pages with 5 figures. Revised version. To appear in Phys Rev Lett | Phys.Rev.Lett. 84 (2000) 1853 | 10.1103/PhysRevLett.84.1853 | UMN-TH-1803/99, NUC-MINN-99/13-T | gr-qc hep-th | null | A continuum of new monopole and dyon solutions in the Einstein-Yang-Mills
theory in asymptotically anti-de Sitter space are found. They are regular
everywhere and specified with their mass, and non-Abelian electric and magnetic
charges. A class of monopole solutions which have no node in non-Abelian
magnetic fields a... | [
{
"created": "Wed, 23 Jun 1999 04:28:53 GMT",
"version": "v1"
},
{
"created": "Mon, 9 Aug 1999 20:45:23 GMT",
"version": "v2"
},
{
"created": "Tue, 14 Dec 1999 17:08:13 GMT",
"version": "v3"
}
] | 2009-10-31 | [
[
"Bjoraker",
"Jefferson",
""
],
[
"Hosotani",
"Yutaka",
""
]
] | A continuum of new monopole and dyon solutions in the Einstein-Yang-Mills theory in asymptotically anti-de Sitter space are found. They are regular everywhere and specified with their mass, and non-Abelian electric and magnetic charges. A class of monopole solutions which have no node in non-Abelian magnetic fields are... |
1909.08199 | S. Kalyana Rama | S. Kalyana Rama | LQ Stars : Modifying the Tolman -- Oppenheimer -- Volkoff equations a la
LQC | Latex file. 26 pages | null | null | IMSc/2019/09/07 | gr-qc astro-ph.HE hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We rewrite the Tolman -- Oppenheimer -- Volkoff (TOV) equations for four and
higher dimensional static spherically symmetric stars so that they resemble the
equations for anisotropic cosmology. This becomes possible by treating the
curvature terms of the sphere as part of the matter sector. Comparing then with
the ef... | [
{
"created": "Wed, 18 Sep 2019 03:42:45 GMT",
"version": "v1"
}
] | 2019-09-19 | [
[
"Rama",
"S. Kalyana",
""
]
] | We rewrite the Tolman -- Oppenheimer -- Volkoff (TOV) equations for four and higher dimensional static spherically symmetric stars so that they resemble the equations for anisotropic cosmology. This becomes possible by treating the curvature terms of the sphere as part of the matter sector. Comparing then with the effe... |
gr-qc/0007079 | Somasri Sen | S. Sen and T. R. Seshadri | Self interacting Brans Dicke cosmology and Quintessence | 8pages, 5 figures, PRD style, some changes are made, figures added,
reference added. To be published in Int. J. Mod. Phys. D | Int.J.Mod.Phys. D12 (2003) 445-460 | 10.1142/S0218271803003049 | MRI-PHY/P20000532 | gr-qc astro-ph | null | Recent cosmological observations reveal that we are living in a flat
accelerated expanding universe. In this work we have investigated the nature of
the potential compatible with the power law expansion of the universe in a self
interacting Brans Dicke cosmology with a perfect fluid background and have
analyzed wheth... | [
{
"created": "Sat, 29 Jul 2000 07:15:05 GMT",
"version": "v1"
},
{
"created": "Mon, 31 Dec 2001 13:09:57 GMT",
"version": "v2"
}
] | 2009-10-31 | [
[
"Sen",
"S.",
""
],
[
"Seshadri",
"T. R.",
""
]
] | Recent cosmological observations reveal that we are living in a flat accelerated expanding universe. In this work we have investigated the nature of the potential compatible with the power law expansion of the universe in a self interacting Brans Dicke cosmology with a perfect fluid background and have analyzed whether... |
gr-qc/0508083 | Sugumi Kanno | Jiro Soda, Sugumi Kanno | Braneworld Cosmological Perturbation Theory at Low Energy | 10 pages, Based on a talk presented at ACRGR4, the 4th Australasian
Conference on General Relativity and Gravitation, Monash University,
Melbourne, January 2004. To appear in the proceedings, in General Relativity
and Gravitation | Gen.Rel.Grav.37:1621-1628,2005 | 10.1007/s10714-005-0139-3 | null | gr-qc | null | Homogeneous cosmology in the braneworld can be studied without solving bulk
equations of motion explicitly. The reason is simply because the symmetry of
the spacetime restricts possible corrections in the 4-dimensional effective
equations of motion. It would be great if we could analyze cosmological
perturbations wit... | [
{
"created": "Sat, 20 Aug 2005 07:28:20 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Soda",
"Jiro",
""
],
[
"Kanno",
"Sugumi",
""
]
] | Homogeneous cosmology in the braneworld can be studied without solving bulk equations of motion explicitly. The reason is simply because the symmetry of the spacetime restricts possible corrections in the 4-dimensional effective equations of motion. It would be great if we could analyze cosmological perturbations witho... |
gr-qc/0204043 | Sascha Husa | Sascha Husa | Problems and Successes in the Numerical Approach to the Conformal Field
Equations | 20 pages, to appear in the proceedings of the conference ``The
Conformal Structure of Spacetimes: Geometry, Analysis, Numerics'', ed. by J.
Frauendiener and H. Friedrich, to be published by Springer Verlag, Lecture
Notes in Physics series | Lect.Notes Phys. 604 (2002) 239-260 | null | AEI-2002-030 | gr-qc | null | This talk reports on the status of an approach to the numerical study of
isolated systems with the conformal field equations. We first describe the
algorithms used in a code which has been developed at AEI in the last years,
and discuss a milestone result obtained by Huebner. Then we present more recent
results as ex... | [
{
"created": "Fri, 12 Apr 2002 09:28:29 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Husa",
"Sascha",
""
]
] | This talk reports on the status of an approach to the numerical study of isolated systems with the conformal field equations. We first describe the algorithms used in a code which has been developed at AEI in the last years, and discuss a milestone result obtained by Huebner. Then we present more recent results as exam... |
gr-qc/9811060 | Francesco Belgiorno | F.Belgiorno and M.Martellini | Quantum properties of the electron field in Kerr-Newman black hole
manifolds | 9 pages, uses revtex | Phys.Lett. B453 (1999) 17-22 | 10.1016/S0370-2693(99)00313-5 | null | gr-qc | null | We study some spectral features of the one-particle electron Hamiltonian
obtained by separating the Dirac equation in a Kerr-Newman black hole
background. We find that the essential spectrum includes the whole real line.
As a consequence, there is no gap in the spectrum and discrete eigenvalues are
not allowed for an... | [
{
"created": "Wed, 18 Nov 1998 14:36:01 GMT",
"version": "v1"
}
] | 2016-08-31 | [
[
"Belgiorno",
"F.",
""
],
[
"Martellini",
"M.",
""
]
] | We study some spectral features of the one-particle electron Hamiltonian obtained by separating the Dirac equation in a Kerr-Newman black hole background. We find that the essential spectrum includes the whole real line. As a consequence, there is no gap in the spectrum and discrete eigenvalues are not allowed for any ... |
1010.5513 | Aron Wall | Aron C. Wall | The Generalized Second Law implies a Quantum Singularity Theorem | 46 pages, 8 figures. v2: discussion of global hyperbolicity revised
(4.1, 5.2), more comments on AdS. v3: major revisions including change of
title. v4: similar to published version, but with corrections to plan of
paper (1) and definition of global hyperbolicity (3.2). v5: fixed proof of
Thm. 1, changed wordin... | Class. Quantum Grav. 30, 165003 (2013) | 10.1088/0264-9381/30/16/165003 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The generalized second law can be used to prove a singularity theorem, by
generalizing the notion of a trapped surface to quantum situations. Like
Penrose's original singularity theorem, it implies that spacetime is null
geodesically incomplete inside black holes, and to the past of spatially
infinite Friedmann--Robe... | [
{
"created": "Tue, 26 Oct 2010 20:42:18 GMT",
"version": "v1"
},
{
"created": "Sun, 20 Feb 2011 03:04:19 GMT",
"version": "v2"
},
{
"created": "Thu, 24 Jan 2013 07:09:11 GMT",
"version": "v3"
},
{
"created": "Tue, 13 Aug 2013 21:50:09 GMT",
"version": "v4"
},
{
"c... | 2016-12-07 | [
[
"Wall",
"Aron C.",
""
]
] | The generalized second law can be used to prove a singularity theorem, by generalizing the notion of a trapped surface to quantum situations. Like Penrose's original singularity theorem, it implies that spacetime is null geodesically incomplete inside black holes, and to the past of spatially infinite Friedmann--Robert... |
1712.00612 | Yury F. Pirogov | Yuriy F. Pirogov | Quartet-metric gravity and dark components of the Universe | Minor corrections. 7 pages. Report presented at the XXXI Intern.
Workshop on HEP, Protvino, 5-7 July 2017 | Int. J. Mod. Phys.: Conf. Series, 47, 1860101 (2018) | 10.1142/S2010194518601011 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In the report there are presented the general frameworks for the
quartet-metric gravity based upon the two physical concepts. First, there exist
in space-time the distinct dynamical coordinates, given by a scalar quartet,
playing the role of the Higgs fields for gravity. Second, the physical gravity
fields arising du... | [
{
"created": "Sat, 2 Dec 2017 14:30:41 GMT",
"version": "v1"
},
{
"created": "Wed, 6 Dec 2017 14:32:14 GMT",
"version": "v2"
}
] | 2019-03-19 | [
[
"Pirogov",
"Yuriy F.",
""
]
] | In the report there are presented the general frameworks for the quartet-metric gravity based upon the two physical concepts. First, there exist in space-time the distinct dynamical coordinates, given by a scalar quartet, playing the role of the Higgs fields for gravity. Second, the physical gravity fields arising due ... |
1502.07395 | Oleg Titov | O. Titov, A. Girdiuk | The deflection of light induced by the Sun's gravitational field and
measured with geodetic VLBI | null | Proc. of "Journees-2014" meeting (edited by Z. Malkin and N.
Capitaine), pp. 75-78 | null | null | gr-qc astro-ph.IM | http://creativecommons.org/licenses/by/4.0/ | The Sun's gravitational field deflects the apparent positions of close
objects in accordance with the formulae of general relativity. Optical
astrometry is used to test the prediction, but only with the stars close to the
Sun and only during total Solar eclipses. Geodetic Very Long Baseline
Interferometry (VLBI) is c... | [
{
"created": "Wed, 25 Feb 2015 23:03:18 GMT",
"version": "v1"
},
{
"created": "Mon, 2 Nov 2015 02:54:21 GMT",
"version": "v2"
}
] | 2015-11-03 | [
[
"Titov",
"O.",
""
],
[
"Girdiuk",
"A.",
""
]
] | The Sun's gravitational field deflects the apparent positions of close objects in accordance with the formulae of general relativity. Optical astrometry is used to test the prediction, but only with the stars close to the Sun and only during total Solar eclipses. Geodetic Very Long Baseline Interferometry (VLBI) is cap... |
1809.09183 | Jorge Pullin | Jorge Pullin and Parampreet Singh | Report on session QG3 of the 15th Marcel Grossmann Meeting | 5 pages, no figures, to appear in the conference proceedings | null | 10.1142/13149 | LSU-REL-092418 | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We summarize the talks presented at the QG3 session (loop quantum gravity:
cosmology and black holes) of the 15th Marcel Grossmann Meeting held in Rome,
Italy on July 1-7 2018.
| [
{
"created": "Mon, 24 Sep 2018 19:34:31 GMT",
"version": "v1"
}
] | 2023-01-27 | [
[
"Pullin",
"Jorge",
""
],
[
"Singh",
"Parampreet",
""
]
] | We summarize the talks presented at the QG3 session (loop quantum gravity: cosmology and black holes) of the 15th Marcel Grossmann Meeting held in Rome, Italy on July 1-7 2018. |
2206.15333 | Yu-Xiao Liu | Yu-Qiang Liu, Yu-Qi Dong, and Yu-Xiao Liu | Classification of Gravitational Waves in Higher-dimensional Space-time
and Possibility of Observation | 19 pages, 4 figures | Eur. Phys. J. C 83, 857 (2023) | 10.1140/epjc/s10052-023-11944-7 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The direct detection of gravitational waves opens the possibility to test
general relativity and its alternatives in the strong field regime. Here we
focus on the test of the existence of extra dimensions. The classification of
gravitational waves in metric gravity theories according to their polarizations
in higher-... | [
{
"created": "Thu, 30 Jun 2022 15:01:02 GMT",
"version": "v1"
},
{
"created": "Fri, 23 Feb 2024 11:42:43 GMT",
"version": "v2"
}
] | 2024-02-26 | [
[
"Liu",
"Yu-Qiang",
""
],
[
"Dong",
"Yu-Qi",
""
],
[
"Liu",
"Yu-Xiao",
""
]
] | The direct detection of gravitational waves opens the possibility to test general relativity and its alternatives in the strong field regime. Here we focus on the test of the existence of extra dimensions. The classification of gravitational waves in metric gravity theories according to their polarizations in higher-di... |
0803.2530 | Stanislav Hled\'ik | Zden\v{e}k Stuchl\'ik | Spherically Symmetric Static Configurations of Uniform Density in
Spacetimes with a Non-Zero Cosmological Constant | 11 pages | ActaPhys.Slov.50:219-228,2000 | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Interior solutions of Einstein's equations with a non-zero cosmological
constant are given for static and spherically symmetric configurations of
uniform density. The metric tensor and pressure are determined for both
positive and negative values of the cosmological constant. Limits on the outer
radius of the interio... | [
{
"created": "Mon, 17 Mar 2008 21:03:52 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Stuchlík",
"Zdeněk",
""
]
] | Interior solutions of Einstein's equations with a non-zero cosmological constant are given for static and spherically symmetric configurations of uniform density. The metric tensor and pressure are determined for both positive and negative values of the cosmological constant. Limits on the outer radius of the interior ... |
2301.04334 | Merab Gogberashvili Prof | Merab Gogberashvili | Fixing cosmological constant on the event horizon | 5 pages, no figures | Eur. Phys. J. C 82 (2022) 1049 | 10.1140/epjc/s10052-022-11033-1 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Standard cosmological equations are written for the Hubble volume, while the
real boundary of space-time is the event horizon. Within the unimodular and
thermodynamic approaches to gravity, the dark energy term in cosmological
equations appears as an integration constant, which we fix at the event horizon
and obtain ... | [
{
"created": "Wed, 11 Jan 2023 07:07:31 GMT",
"version": "v1"
}
] | 2023-01-12 | [
[
"Gogberashvili",
"Merab",
""
]
] | Standard cosmological equations are written for the Hubble volume, while the real boundary of space-time is the event horizon. Within the unimodular and thermodynamic approaches to gravity, the dark energy term in cosmological equations appears as an integration constant, which we fix at the event horizon and obtain th... |
1209.5128 | Radouane Gannouji | Radouane Gannouji | DGP black holes on the brane | 5 pages, 1 figure | Eur. Phys. J. C (2018) 78: 318 | 10.1140/epjc/s10052-018-5809-x | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We find an exact solution on the brane for static black hole in the DGP
model. In the appropriate limit we recover the 2 known solutions, the
Schwarzschild and the Reissner-Nordstrom solutions with tidal charge. The
solution has 2 branches, which correspond asymptotically to de-Sitter or flat
Universe. Also we study ... | [
{
"created": "Sun, 23 Sep 2012 23:52:09 GMT",
"version": "v1"
}
] | 2018-04-24 | [
[
"Gannouji",
"Radouane",
""
]
] | We find an exact solution on the brane for static black hole in the DGP model. In the appropriate limit we recover the 2 known solutions, the Schwarzschild and the Reissner-Nordstrom solutions with tidal charge. The solution has 2 branches, which correspond asymptotically to de-Sitter or flat Universe. Also we study th... |
gr-qc/0007084 | V. Suneeta | T.R.Govindarajan and V.Suneeta | Quasi-normal modes of AdS black holes : A superpotential approach | LaTeX, 17 pages, 5 eps figures, 1 eepic figure, minor typos corrected | Class.Quant.Grav. 18 (2001) 265-276 | 10.1088/0264-9381/18/2/306 | IMSc/2000/07/37 | gr-qc hep-th | null | A novel method, based on superpotentials is proposed for obtaining the
quasi-normal modes of anti-de Sitter black holes. This is inspired by the case
of the three-dimensional BTZ black hole, where the quasi-normal modes can be
obtained exactly and are proportional to the surface gravity. Using this
approach, the quas... | [
{
"created": "Mon, 31 Jul 2000 15:06:36 GMT",
"version": "v1"
},
{
"created": "Wed, 25 Oct 2000 15:24:16 GMT",
"version": "v2"
}
] | 2009-10-31 | [
[
"Govindarajan",
"T. R.",
""
],
[
"Suneeta",
"V.",
""
]
] | A novel method, based on superpotentials is proposed for obtaining the quasi-normal modes of anti-de Sitter black holes. This is inspired by the case of the three-dimensional BTZ black hole, where the quasi-normal modes can be obtained exactly and are proportional to the surface gravity. Using this approach, the quasi-... |
1303.4350 | Felipe Falciano | E. Goulart and F. T. Falciano | Disformal invariance of Maxwell's field equations | 8 pages, no figures | Class. Quantum Grav. 30 (2013) 155020 | 10.1088/0264-9381/30/15/155020 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We show that Maxwell's electrodynamics in vacuum is invariant under active
transformations of the metric. These metrics are related by disformal mappings
induced by derivatives of the gauge vector $A_{\mu}$ such that the gauge
symmetry is preserved. Our results generalize the well known conformal
invariance of electr... | [
{
"created": "Mon, 18 Mar 2013 18:22:53 GMT",
"version": "v1"
}
] | 2013-07-17 | [
[
"Goulart",
"E.",
""
],
[
"Falciano",
"F. T.",
""
]
] | We show that Maxwell's electrodynamics in vacuum is invariant under active transformations of the metric. These metrics are related by disformal mappings induced by derivatives of the gauge vector $A_{\mu}$ such that the gauge symmetry is preserved. Our results generalize the well known conformal invariance of electrod... |
2211.17147 | Mohamed Ould El Hadj | Theo Torres, Mohamed Ould El Hadj, Shi-Qian Hu and Ruth Gregory | Regge pole description of scattering by dirty black holes | 23 pages, 15 figures | Phys. Rev. D 107, 064028 (2023) | 10.1103/PhysRevD.107.064028 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the problem of plane monochromatic scalar waves impinging upon a
Schwarzschild dirty black hole -- a Schwarzschild black hole surrounded by a
thin spherical shell of matter -- using the complex angular momentum approach.
We first recall general results concerning the differential scattering cross
section in ... | [
{
"created": "Wed, 30 Nov 2022 16:35:16 GMT",
"version": "v1"
}
] | 2023-03-15 | [
[
"Torres",
"Theo",
""
],
[
"Hadj",
"Mohamed Ould El",
""
],
[
"Hu",
"Shi-Qian",
""
],
[
"Gregory",
"Ruth",
""
]
] | We study the problem of plane monochromatic scalar waves impinging upon a Schwarzschild dirty black hole -- a Schwarzschild black hole surrounded by a thin spherical shell of matter -- using the complex angular momentum approach. We first recall general results concerning the differential scattering cross section in th... |
1501.03510 | Don N. Page | Don N. Page and Andrey A. Shoom | Local Invariants Vanishing on Stationary Horizons: A Diagnostic for
Locating Black Holes | 5 pages, LaTeX, additional material added, retitled at the suggestion
of the Physical Review Letters editor when accepting the paper | Phys. Rev. Lett. 114, 141102 (2015) | 10.1103/PhysRevLett.114.141102 | Alberta-Thy-1-15 | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Inspired by the example of Abdelqader and Lake for the Kerr metric, we
construct local scalar polynomial curvature invariants that vanish on the
horizon of any stationary black hole: the squared norms of the wedge products
of n linearly independent gradients of scalar polynomial curvature invariants,
where n is the l... | [
{
"created": "Wed, 14 Jan 2015 21:04:59 GMT",
"version": "v1"
},
{
"created": "Tue, 20 Jan 2015 19:52:16 GMT",
"version": "v2"
},
{
"created": "Wed, 11 Mar 2015 15:55:56 GMT",
"version": "v3"
},
{
"created": "Thu, 19 Mar 2015 18:00:56 GMT",
"version": "v4"
}
] | 2015-04-16 | [
[
"Page",
"Don N.",
""
],
[
"Shoom",
"Andrey A.",
""
]
] | Inspired by the example of Abdelqader and Lake for the Kerr metric, we construct local scalar polynomial curvature invariants that vanish on the horizon of any stationary black hole: the squared norms of the wedge products of n linearly independent gradients of scalar polynomial curvature invariants, where n is the loc... |
gr-qc/0604094 | Tomas Janssen | Tomas Janssen, Tomislav Prokopec (Utrecht U.) | Instabilities in the nonsymmetric theory of gravitation | 29 pages | Class.Quant.Grav. 23 (2006) 4967-4982 | 10.1088/0264-9381/23/15/015 | SPIN-06-15, ITP-UU-06-18 | gr-qc | null | We consider the linearized nonsymmetric theory of gravitation (NGT) within
the background of an expanding universe and near a Schwarzschild metric. We
show that the theory always develops instabilities unless the linearized
nonsymmetric lagrangian reduces to a particular simple form. This theory
contains a gauge inva... | [
{
"created": "Fri, 21 Apr 2006 13:25:30 GMT",
"version": "v1"
}
] | 2009-11-11 | [
[
"Janssen",
"Tomas",
"",
"Utrecht U."
],
[
"Prokopec",
"Tomislav",
"",
"Utrecht U."
]
] | We consider the linearized nonsymmetric theory of gravitation (NGT) within the background of an expanding universe and near a Schwarzschild metric. We show that the theory always develops instabilities unless the linearized nonsymmetric lagrangian reduces to a particular simple form. This theory contains a gauge invari... |
2103.08104 | Wen-Biao Han | Song Li, Ahmadjon A. Abdujabbarov, Wen-Biao Han | Qualifying ringdown and shadow of black holes under general parametrized
metrics with photon orbits | 18 pages, 27 figures | Eur. Phys. J. C 81:649 (2021) | 10.1140/epjc/s10052-021-09445-6 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The motion of photons around black holes determines the shape of shadow and
match the ringdown properties of a perturbed black hole. Observations of
shadows and ringdown waveforms will reveal the nature of black holes. In this
paper, we study the motion of photons in a general parametrized metric beyond
the Kerr hypo... | [
{
"created": "Mon, 15 Mar 2021 02:47:10 GMT",
"version": "v1"
},
{
"created": "Wed, 28 Jul 2021 07:02:30 GMT",
"version": "v2"
}
] | 2021-07-29 | [
[
"Li",
"Song",
""
],
[
"Abdujabbarov",
"Ahmadjon A.",
""
],
[
"Han",
"Wen-Biao",
""
]
] | The motion of photons around black holes determines the shape of shadow and match the ringdown properties of a perturbed black hole. Observations of shadows and ringdown waveforms will reveal the nature of black holes. In this paper, we study the motion of photons in a general parametrized metric beyond the Kerr hypoth... |
gr-qc/9605042 | Dr. Greg Comer | G. L. Comer (Saint Louis University), Nathalie Deruelle (DARC,
Observatoire de Paris) and David Langlois (DARC, Observatoire de Paris) | Long-wavelength iteration scheme and scalar-tensor gravity | 13 pages, requires REVTeX, submitted to Phys. Rev. D | Phys.Rev.D55:3497-3504,1997 | 10.1103/PhysRevD.55.3497 | null | gr-qc | null | Inhomogeneous and anisotropic cosmologies are modeled withing the framework
of scalar-tensor gravity theories. The inhomogeneities are calculated to
third-order in the so-called long-wavelength iteration scheme. We write the
solutions for general scalar coupling and discuss what happens to the
third-order terms when ... | [
{
"created": "Sun, 19 May 1996 16:08:27 GMT",
"version": "v1"
}
] | 2011-08-17 | [
[
"Comer",
"G. L.",
"",
"Saint Louis University"
],
[
"Deruelle",
"Nathalie",
"",
"DARC,\n Observatoire de Paris"
],
[
"Langlois",
"David",
"",
"DARC, Observatoire de Paris"
]
] | Inhomogeneous and anisotropic cosmologies are modeled withing the framework of scalar-tensor gravity theories. The inhomogeneities are calculated to third-order in the so-called long-wavelength iteration scheme. We write the solutions for general scalar coupling and discuss what happens to the third-order terms when th... |
2408.05825 | Somayyeh Mahmoudi | S. Mahmoudi and S. H. Hendi | Gravitational Radiation in Generalized Brans Dicke Theory: Compact
Binary Systems | Accepted for Eur. Phys. J. C | null | null | null | gr-qc hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | This paper investigates the generation and properties of
gravitational radiation within the framework of Generalized
Brans-Dicke (GBD) theory, with a specific emphasis on its
manifestation in compact binary systems. The primary focus of this study lies
in the
comprehensive exploration of gravitational radiati... | [
{
"created": "Sun, 11 Aug 2024 17:00:01 GMT",
"version": "v1"
}
] | 2024-08-13 | [
[
"Mahmoudi",
"S.",
""
],
[
"Hendi",
"S. H.",
""
]
] | This paper investigates the generation and properties of gravitational radiation within the framework of Generalized Brans-Dicke (GBD) theory, with a specific emphasis on its manifestation in compact binary systems. The primary focus of this study lies in the comprehensive exploration of gravitational radiation generat... |
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