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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1812.04031 | Damianos Iosifidis | Damianos Iosifidis | Exactly Solvable Connections in Metric-Affine Gravity | 39 pages, 1 figure, references added | null | 10.1088/1361-6382/ab0be2 | null | gr-qc hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | This article presents a systematic way to solve for the Affine Connection in
Metric-Affine Geometry. We start by adding to the Einstein-Hilbert action, a
general action that is linear in the connection and its partial derivatives and
respects projective invariance. We then generalize the result for Metric-Affine
f(R)... | [
{
"created": "Mon, 10 Dec 2018 19:09:20 GMT",
"version": "v1"
},
{
"created": "Mon, 15 Apr 2019 12:48:19 GMT",
"version": "v2"
},
{
"created": "Mon, 24 Jun 2019 07:17:05 GMT",
"version": "v3"
}
] | 2019-06-25 | [
[
"Iosifidis",
"Damianos",
""
]
] | This article presents a systematic way to solve for the Affine Connection in Metric-Affine Geometry. We start by adding to the Einstein-Hilbert action, a general action that is linear in the connection and its partial derivatives and respects projective invariance. We then generalize the result for Metric-Affine f(R) T... |
1710.11177 | John W. Moffat | M. A. Green, J. W. Moffat and V. T. Toth | Modified Gravity (MOG), the speed of gravitational radiation and the
event GW170817/GRB170817A | 6 pages, no figures | null | 10.1016/j.physletb.2018.03.015 | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Modified gravity (MOG) is a covariant, relativistic, alternative
gravitational theory whose field equations are derived from an action that
supplements the spacetime metric tensor with vector and scalar fields. Both
gravitational (spin 2) and electromagnetic waves travel on null geodesics of
the theory's one metric. ... | [
{
"created": "Mon, 30 Oct 2017 18:38:11 GMT",
"version": "v1"
}
] | 2018-03-14 | [
[
"Green",
"M. A.",
""
],
[
"Moffat",
"J. W.",
""
],
[
"Toth",
"V. T.",
""
]
] | Modified gravity (MOG) is a covariant, relativistic, alternative gravitational theory whose field equations are derived from an action that supplements the spacetime metric tensor with vector and scalar fields. Both gravitational (spin 2) and electromagnetic waves travel on null geodesics of the theory's one metric. De... |
gr-qc/0209055 | Nicholas G. Phillips | Nicholas G Phillips and B. L. Hu | Noise Kernel and Stress Energy Bi-Tensor of Quantum Fields in
Conformally-Optical Metrics: Schwarzschild Black Holes | 19 pages, RevTeX 4 | null | null | null | gr-qc | null | In Paper II [N. G. Phillips and B. L. Hu, previous abstract] we presented the
details for the regularization of the noise kernel of a quantum scalar field in
optical spacetimes by the modified point separation scheme, and a Gaussian
approximation for the Green function. We worked out the regularized noise
kernel for ... | [
{
"created": "Tue, 17 Sep 2002 18:10:50 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Phillips",
"Nicholas G",
""
],
[
"Hu",
"B. L.",
""
]
] | In Paper II [N. G. Phillips and B. L. Hu, previous abstract] we presented the details for the regularization of the noise kernel of a quantum scalar field in optical spacetimes by the modified point separation scheme, and a Gaussian approximation for the Green function. We worked out the regularized noise kernel for tw... |
2211.14747 | Wenting Zhou | Wenting Zhou, Shijing Cheng, and Hongwei Yu | Understanding thermal nature of de Sitter spacetime via inter-detector
interaction | 14 pages | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The seminar discovery by Gibbons and Hawking that a freely falling detector
observes an isotropic background of thermal radiation reveals that de Sitter
space is equivalent to a thermal bath at the Gibbons-Hawking temperature in
Minkowski space, as far as the response rate of the detector is concerned.
Meanwhile, for... | [
{
"created": "Sun, 27 Nov 2022 07:01:48 GMT",
"version": "v1"
}
] | 2022-11-29 | [
[
"Zhou",
"Wenting",
""
],
[
"Cheng",
"Shijing",
""
],
[
"Yu",
"Hongwei",
""
]
] | The seminar discovery by Gibbons and Hawking that a freely falling detector observes an isotropic background of thermal radiation reveals that de Sitter space is equivalent to a thermal bath at the Gibbons-Hawking temperature in Minkowski space, as far as the response rate of the detector is concerned. Meanwhile, for a... |
1307.4854 | Lorenzo Sebastiani | R. Myrzakulov, L. Sebastiani and S. Zerbini | Inhomogeneous viscous fluids in FRW universe | 11 pages, references added; Galaxies 2013, 1 | Galaxies, v.1, N2, 83-95 (2013) | 10.3390/galaxies1020083 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We give a brief review of some aspects of inhomogeneous viscous fluids in a
flat Friedmann-Robertson-Walker Universe. In general, it is pointed out that
several fluid models may bring the future Universe evolution to become
singular, with the appearance of the so-called Big Rip scenario. We investigate
the effects of... | [
{
"created": "Thu, 18 Jul 2013 07:51:34 GMT",
"version": "v1"
},
{
"created": "Tue, 23 Jul 2013 08:17:37 GMT",
"version": "v2"
}
] | 2013-11-19 | [
[
"Myrzakulov",
"R.",
""
],
[
"Sebastiani",
"L.",
""
],
[
"Zerbini",
"S.",
""
]
] | We give a brief review of some aspects of inhomogeneous viscous fluids in a flat Friedmann-Robertson-Walker Universe. In general, it is pointed out that several fluid models may bring the future Universe evolution to become singular, with the appearance of the so-called Big Rip scenario. We investigate the effects of f... |
2402.00813 | Panagiota Kolitsidou | Panagiota Kolitsidou, Jonathan E. Thompson, Mark Hannam | Impact of anti-symmetric contributions to signal multipoles in the
measurement of black-hole spins | 14 pages, 8 figures | null | null | LIGO-P2300431 | gr-qc | http://creativecommons.org/licenses/by/4.0/ | Many current models for the gravitational-wave signal from precessing
black-hole binaries neglect an asymmetry in the $\pm m$ multipoles. The
asymmetry is weak, but is responsible for out-of-plane recoil, which for the
final black hole can be several thousand km/s. In this work we show that the
multipole asymmetry is... | [
{
"created": "Thu, 1 Feb 2024 17:51:38 GMT",
"version": "v1"
}
] | 2024-02-02 | [
[
"Kolitsidou",
"Panagiota",
""
],
[
"Thompson",
"Jonathan E.",
""
],
[
"Hannam",
"Mark",
""
]
] | Many current models for the gravitational-wave signal from precessing black-hole binaries neglect an asymmetry in the $\pm m$ multipoles. The asymmetry is weak, but is responsible for out-of-plane recoil, which for the final black hole can be several thousand km/s. In this work we show that the multipole asymmetry is a... |
gr-qc/0310010 | Xin-Zhou Li | Xiang-hua Zhai, Li-ping Fu | Features of Motion Around Charged D-Stars | 9 pages, 2 figures | Nuovo Cim.B119:157-166,2004 | 10.1393/ncb/i2003-10091-6 | null | gr-qc | null | The motion of light and a neutral test particle around the charged D-star has
been studied. The difference of the deficit angle of light from the case in
asymptotically flat spacetime is in a factor $(1-\epsilon^2)$. The motion of a
test particle is affected by the deficit angle and the charge. Through the
phase anal... | [
{
"created": "Thu, 2 Oct 2003 07:23:04 GMT",
"version": "v1"
}
] | 2011-08-24 | [
[
"Zhai",
"Xiang-hua",
""
],
[
"Fu",
"Li-ping",
""
]
] | The motion of light and a neutral test particle around the charged D-star has been studied. The difference of the deficit angle of light from the case in asymptotically flat spacetime is in a factor $(1-\epsilon^2)$. The motion of a test particle is affected by the deficit angle and the charge. Through the phase analys... |
1704.02931 | Vasilis Oikonomou | S.D. Odintsov, V.K. Oikonomou | Inflation with a Smooth Constant-Roll to Constant-Roll Era Transition | PRD accepted | Phys. Rev. D 96, 024029 (2017) | 10.1103/PhysRevD.96.024029 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper we study canonical scalar field models with a varying second
slow-roll parameter, that allow transitions between constant-roll eras. In the
models with two constant-roll eras it is possible to avoid fine-tunings in the
initial conditions of the scalar field. We mainly focus on the stability of the
resul... | [
{
"created": "Mon, 10 Apr 2017 16:16:06 GMT",
"version": "v1"
},
{
"created": "Sun, 25 Jun 2017 18:21:18 GMT",
"version": "v2"
}
] | 2017-07-26 | [
[
"Odintsov",
"S. D.",
""
],
[
"Oikonomou",
"V. K.",
""
]
] | In this paper we study canonical scalar field models with a varying second slow-roll parameter, that allow transitions between constant-roll eras. In the models with two constant-roll eras it is possible to avoid fine-tunings in the initial conditions of the scalar field. We mainly focus on the stability of the resulti... |
gr-qc/0506127 | Ettore Minguzzi | E. Minguzzi | Simultaneity in special and general relativity | Latex2e, 9 pages, no figures. To appear in the proceedings of the
school 'Relativistic Coordinates, Reference and Positioning Systems',
Salamanca (Spain), January 21-25, 2005 | null | null | null | gr-qc | null | We present some basic facts concerning simultaneity in both special and
general relativity. We discuss Weyl's proof of the consistence of Einstein's
synchronization convention and consider the general relativistic problem of
assigning a time function to a congruence of timelike curves.
| [
{
"created": "Tue, 28 Jun 2005 10:24:42 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Minguzzi",
"E.",
""
]
] | We present some basic facts concerning simultaneity in both special and general relativity. We discuss Weyl's proof of the consistence of Einstein's synchronization convention and consider the general relativistic problem of assigning a time function to a congruence of timelike curves. |
1104.5471 | James Ryan | James P. Ryan | Tensor models and embedded Riemann surfaces | 9 pages, 7 fig | null | 10.1103/PhysRevD.85.024010 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Tensor models and, more generally, group field theories are candidates for
higher-dimensional quantum gravity, just as matrix models are in the 2d
setting. With the recent advent of a 1/N-expansion for coloured tensor models,
more focus has been given to the study of the topological aspects of their
Feynman graphs. C... | [
{
"created": "Thu, 28 Apr 2011 19:02:57 GMT",
"version": "v1"
}
] | 2013-05-30 | [
[
"Ryan",
"James P.",
""
]
] | Tensor models and, more generally, group field theories are candidates for higher-dimensional quantum gravity, just as matrix models are in the 2d setting. With the recent advent of a 1/N-expansion for coloured tensor models, more focus has been given to the study of the topological aspects of their Feynman graphs. Cru... |
1506.07122 | Morgan Le Delliou | Alan Maciel, Morgan Le Delliou (IFT-UNESP), Jos\'e P. Mimoso (DFUL) | A dual null formalism for the collapse of fluids in a cosmological
background | 10pp 1 fig. corrected for equation labels, cross listing corrected | Phys. Rev. D 92, 083525 (2015) | 10.1103/PhysRevD.92.083525 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this work we revisit the definition of Matter Trapping Surfaces (MTS)
introduced in previous investigations and show how it can be expressed in the
so-called dual null formalism developed for Trapping Horizons (TH). With the
aim of unifying both approaches, we construct a 2+2 threading from the 1+3
flow, and thus ... | [
{
"created": "Tue, 23 Jun 2015 18:27:00 GMT",
"version": "v1"
},
{
"created": "Wed, 24 Jun 2015 18:20:51 GMT",
"version": "v2"
}
] | 2015-10-28 | [
[
"Maciel",
"Alan",
"",
"IFT-UNESP"
],
[
"Delliou",
"Morgan Le",
"",
"IFT-UNESP"
],
[
"Mimoso",
"José P.",
"",
"DFUL"
]
] | In this work we revisit the definition of Matter Trapping Surfaces (MTS) introduced in previous investigations and show how it can be expressed in the so-called dual null formalism developed for Trapping Horizons (TH). With the aim of unifying both approaches, we construct a 2+2 threading from the 1+3 flow, and thus is... |
2406.03279 | Lorenzo Boldorini | L. Boldorini and G. Montani | Effective Quantum Gravitational Collapse in a Polymer Framework | 18 pages, 13 figures, submitted to PRD. Added references | null | null | null | gr-qc hep-th | http://creativecommons.org/licenses/by/4.0/ | We study how the presence of an area gap, different than zero, affects the
gravitational collapse of a dust ball. The implementation of such discreteness
is achieved through the framework of polymer quantization, a scheme inspired by
loop quantum gravity (LQG). We study the collapse using variables which
represent th... | [
{
"created": "Wed, 5 Jun 2024 13:54:22 GMT",
"version": "v1"
},
{
"created": "Thu, 13 Jun 2024 13:24:19 GMT",
"version": "v2"
}
] | 2024-06-14 | [
[
"Boldorini",
"L.",
""
],
[
"Montani",
"G.",
""
]
] | We study how the presence of an area gap, different than zero, affects the gravitational collapse of a dust ball. The implementation of such discreteness is achieved through the framework of polymer quantization, a scheme inspired by loop quantum gravity (LQG). We study the collapse using variables which represent the ... |
1209.3791 | Eugen Simanek | Eugen Simanek | Energy quantization for matter orbiting black hole and Hawking radiation | null | null | null | null | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The energy of a test particle orbiting a Schwarzschild black hole is
quantized owing to the quantization of the angular momentum. For smallest
stable circular orbit, the excitation energy is found to resemble closely the
expression for the temperature of the Hawking radiation. This result is
consistent with the Unruh... | [
{
"created": "Fri, 31 Aug 2012 20:12:13 GMT",
"version": "v1"
}
] | 2012-09-19 | [
[
"Simanek",
"Eugen",
""
]
] | The energy of a test particle orbiting a Schwarzschild black hole is quantized owing to the quantization of the angular momentum. For smallest stable circular orbit, the excitation energy is found to resemble closely the expression for the temperature of the Hawking radiation. This result is consistent with the Unruh e... |
gr-qc/0408076 | Massimo Tinto | Massimo Tinto, and Malik Rakhmanov | On the laser frequency stabilization by locking to a LISA arm | 3 pages, 1 figure | null | null | null | gr-qc | null | LISA is an array of three spacecraft flying in an approximately equilateral
triangle configuration, which will be used as a low-frequency detector of
gravitational waves. Recently a technique has been proposed for suppressing the
phase noise of the onboard lasers by locking them to the LISA arms. In this
paper we sho... | [
{
"created": "Sat, 21 Aug 2004 18:46:54 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Tinto",
"Massimo",
""
],
[
"Rakhmanov",
"Malik",
""
]
] | LISA is an array of three spacecraft flying in an approximately equilateral triangle configuration, which will be used as a low-frequency detector of gravitational waves. Recently a technique has been proposed for suppressing the phase noise of the onboard lasers by locking them to the LISA arms. In this paper we show ... |
2403.00531 | Esha Bhatia | Esha Bhatia, Sayan Chakrabarti, Sovan Chakraborty | Phenomenology of renormalization group improved gravity from the
kinematics of SPARC galaxies | 17 pages, 23 figures | null | null | null | gr-qc astro-ph.GA | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Renormalization Group correction to General Relativity (RGGR) proposes a
logarithmic running of the gravitational coupling $\left(G\right)$, resulting
in a modified description of gravity. This has the potential to explain the
observed kinematics of the galaxies, including the missing-mass problem. We,
for the first ... | [
{
"created": "Fri, 1 Mar 2024 13:43:31 GMT",
"version": "v1"
},
{
"created": "Thu, 1 Aug 2024 08:51:19 GMT",
"version": "v2"
}
] | 2024-08-02 | [
[
"Bhatia",
"Esha",
""
],
[
"Chakrabarti",
"Sayan",
""
],
[
"Chakraborty",
"Sovan",
""
]
] | Renormalization Group correction to General Relativity (RGGR) proposes a logarithmic running of the gravitational coupling $\left(G\right)$, resulting in a modified description of gravity. This has the potential to explain the observed kinematics of the galaxies, including the missing-mass problem. We, for the first ti... |
2012.01066 | Peng Wang | Peng Wang, Houwen Wu, Haitang Yang | Scalarized Einstein-Born-Infeld-scalar Black Holes | v1: 27 pages, 7 figures; v2: 27 pages, 7 figures, references added | Phys. Rev. D 103, 104012 (2021) | 10.1103/PhysRevD.103.104012 | CTP-SCU/2020037 | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The phenomenon of spontaneous scalarization of Reissner-Nordstr\"{o}m (RN)
black holes has recently been found in an Einstein-Maxwell-scalar (EMS) model
due to a non-minimal coupling between the scalar and Maxwell fields. Non-linear
electrodynamics, e.g., Born-Infeld (BI) electrodynamics, generalizes Maxwell's
theory... | [
{
"created": "Wed, 2 Dec 2020 10:18:33 GMT",
"version": "v1"
},
{
"created": "Sun, 7 Feb 2021 09:21:18 GMT",
"version": "v2"
}
] | 2021-05-19 | [
[
"Wang",
"Peng",
""
],
[
"Wu",
"Houwen",
""
],
[
"Yang",
"Haitang",
""
]
] | The phenomenon of spontaneous scalarization of Reissner-Nordstr\"{o}m (RN) black holes has recently been found in an Einstein-Maxwell-scalar (EMS) model due to a non-minimal coupling between the scalar and Maxwell fields. Non-linear electrodynamics, e.g., Born-Infeld (BI) electrodynamics, generalizes Maxwell's theory i... |
gr-qc/0702091 | Hajime Sotani | Hajime Sotani, Shijun Yoshida, and Kostas D. Kokkotas | Gravitational radiation from collapsing magnetized dust | null | Phys.Rev.D75:084015,2007 | 10.1103/PhysRevD.75.084015 | null | gr-qc | null | In this article we study the influence of magnetic fields on the axial
gravitational waves emitted during the collapse of a homogeneous dust sphere.
We found that while the energy emitted depends weakly on the initial matter
perturbations it has strong dependence on the strength and the distribution of
the magnetic f... | [
{
"created": "Thu, 15 Feb 2007 15:09:34 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Sotani",
"Hajime",
""
],
[
"Yoshida",
"Shijun",
""
],
[
"Kokkotas",
"Kostas D.",
""
]
] | In this article we study the influence of magnetic fields on the axial gravitational waves emitted during the collapse of a homogeneous dust sphere. We found that while the energy emitted depends weakly on the initial matter perturbations it has strong dependence on the strength and the distribution of the magnetic fie... |
2402.19010 | Josef Kluson | J. Kluson | Reparametrization invariant action for Gravity with Dynamical
Determinant of Metric | 22 pages | null | null | null | gr-qc | http://creativecommons.org/publicdomain/zero/1.0/ | We present manifestly reparametrization invariant action for theory of
gravity with dynamical determinant of metric. We show that it is similar to a
reparametrization invariant action for unimodular gravity. We determine
canonical form of the action and study structure of constraints.
| [
{
"created": "Thu, 29 Feb 2024 10:11:05 GMT",
"version": "v1"
}
] | 2024-03-01 | [
[
"Kluson",
"J.",
""
]
] | We present manifestly reparametrization invariant action for theory of gravity with dynamical determinant of metric. We show that it is similar to a reparametrization invariant action for unimodular gravity. We determine canonical form of the action and study structure of constraints. |
1706.03040 | Cenalo Vaz | Souvik Sarkar and Cenalo Vaz | Canonical Chern-Simons Gravity | null | Physical Review D 96, 024056 (2017) | 10.1103/PhysRevD.96.024056 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the canonical description of the axisymmetric vacuum in 2+1
dimensional gravity, treating Einstein's gravity as a Chern Simons gauge theory
on a manifold with the restriction that the dreibein is invertible. Our
treatment is in the spirit of Kucha\v r's description of the Schwarzschild
black hole in 3+1 dime... | [
{
"created": "Fri, 9 Jun 2017 16:57:16 GMT",
"version": "v1"
}
] | 2017-09-13 | [
[
"Sarkar",
"Souvik",
""
],
[
"Vaz",
"Cenalo",
""
]
] | We study the canonical description of the axisymmetric vacuum in 2+1 dimensional gravity, treating Einstein's gravity as a Chern Simons gauge theory on a manifold with the restriction that the dreibein is invertible. Our treatment is in the spirit of Kucha\v r's description of the Schwarzschild black hole in 3+1 dimens... |
2004.07515 | Matthew Charles Edwards | Matthew C. Edwards, Patricio Maturana-Russel, Renate Meyer, Jonathan
Gair, Natalia Korsakova, Nelson Christensen | Identifying and Addressing Nonstationary LISA Noise | 19 pages, 17 figures | Phys. Rev. D 102, 084062 (2020) | 10.1103/PhysRevD.102.084062 | null | gr-qc astro-ph.IM | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We anticipate noise from the Laser Interferometer Space Antenna (LISA) will
exhibit nonstationarities throughout the duration of its mission due to factors
such as antenna repointing, cyclostationarities from spacecraft motion, and
glitches as highlighted by LISA Pathfinder. In this paper, we use a surrogate
data app... | [
{
"created": "Thu, 16 Apr 2020 08:11:24 GMT",
"version": "v1"
},
{
"created": "Fri, 18 Sep 2020 00:20:10 GMT",
"version": "v2"
}
] | 2020-10-29 | [
[
"Edwards",
"Matthew C.",
""
],
[
"Maturana-Russel",
"Patricio",
""
],
[
"Meyer",
"Renate",
""
],
[
"Gair",
"Jonathan",
""
],
[
"Korsakova",
"Natalia",
""
],
[
"Christensen",
"Nelson",
""
]
] | We anticipate noise from the Laser Interferometer Space Antenna (LISA) will exhibit nonstationarities throughout the duration of its mission due to factors such as antenna repointing, cyclostationarities from spacecraft motion, and glitches as highlighted by LISA Pathfinder. In this paper, we use a surrogate data appro... |
1307.3599 | Douglas A. Singleton | Preston Jones, Gerardo Munoz, Douglas Singleton, Triyanta | Field localization and Nambu Jona-Lasinio mass generation mechanism in
an alternative 5-dimensional brane model | 25 pages, no figures. Version matches published version, minor
corrections | Phys.Rev. D88 (2013) 025048 | 10.1103/PhysRevD.88.025048 | null | gr-qc hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider a 5-dimensional brane world model with a single brane which is
distinct from the well known Randall-Sundrum model. We discuss the similarities
and differences between our brane model and the Randall-Sundrum brane model. In
particular we focus on the localization of 5D fields with different spins --
spin 0... | [
{
"created": "Sat, 13 Jul 2013 01:22:21 GMT",
"version": "v1"
},
{
"created": "Tue, 13 Aug 2013 21:40:00 GMT",
"version": "v2"
}
] | 2013-08-15 | [
[
"Jones",
"Preston",
""
],
[
"Munoz",
"Gerardo",
""
],
[
"Singleton",
"Douglas",
""
],
[
"Triyanta",
"",
""
]
] | We consider a 5-dimensional brane world model with a single brane which is distinct from the well known Randall-Sundrum model. We discuss the similarities and differences between our brane model and the Randall-Sundrum brane model. In particular we focus on the localization of 5D fields with different spins -- spin 0, ... |
1510.06776 | Ashfaque Bokhari | Suhail Khan (1), Tahir Hussain (1), Ashfaque H. Bokhari (2) and Gulzar
Ali Khan (1) (1) Department of Mathematics, University of Peshawar, Peshawar
Khyber Pakhtoonkhwa, Pakistan. (2) Department of Mathematics, King Fahd
University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia | Conformal Killing Vectors Of Plane Symmetric Four Dimensional Lorentzian
Manifolds | null | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper, we investigate conformal Killing's vectors (CKVs) admitted by
some plane symmetric spacetimes. Ten conformal Killing's equations and their
general forms of CKVs are derived along with their conformal factor. The
existence of conformal Killing's symmetry imposes restrictions on the metric
functions. The... | [
{
"created": "Thu, 22 Oct 2015 22:00:04 GMT",
"version": "v1"
}
] | 2015-10-26 | [
[
"Khan",
"Suhail",
""
],
[
"Hussain",
"Tahir",
""
],
[
"Bokhari",
"Ashfaque H.",
""
],
[
"Khan",
"Gulzar Ali",
""
],
[
"Mathematics",
"Department of",
""
],
[
"Peshawar",
"University of",
""
],
[
"Pakhtoonkhwa",
... | In this paper, we investigate conformal Killing's vectors (CKVs) admitted by some plane symmetric spacetimes. Ten conformal Killing's equations and their general forms of CKVs are derived along with their conformal factor. The existence of conformal Killing's symmetry imposes restrictions on the metric functions. The c... |
gr-qc/9910053 | Garcia | L.C.Garcia de Andrade and R.O.Ramos (Universidade do Estado do Rio de
Janeiro) | Spin-torsion in Chaotic Inflation | Latex file 10 Kb | null | null | null | gr-qc | null | The role of spin-torsion coupling to gravity is analyzed in the context of a
model of chaotic inflation. The system of equations constructed from the
Einstein-Cartan and inflaton field equations are studied and it is shown that
spin-torsion interactions are effective only at the very first e-folds of
inflation, becom... | [
{
"created": "Thu, 14 Oct 1999 21:52:03 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"de Andrade",
"L. C. Garcia",
"",
"Universidade do Estado do Rio de\n Janeiro"
],
[
"Ramos",
"R. O.",
"",
"Universidade do Estado do Rio de\n Janeiro"
]
] | The role of spin-torsion coupling to gravity is analyzed in the context of a model of chaotic inflation. The system of equations constructed from the Einstein-Cartan and inflaton field equations are studied and it is shown that spin-torsion interactions are effective only at the very first e-folds of inflation, becomin... |
1807.10167 | Orlando Luongo | Rocco D'Agostino, Orlando Luongo | Growth of matter perturbations in non-minimal teleparallel dark energy | 14 pages, 12 figures, accepted for publication in Phys. Rev. D | Phys. Rev. D 98, 124013 (2018) | 10.1103/PhysRevD.98.124013 | null | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the growth rate of matter perturbations in the context of
teleparallel dark energy in a flat universe. We investigate the dynamics of
different theoretical scenarios based on specific forms of the scalar field
potential. Allowing for non-minimal coupling between torsion scalar and scalar
field, we perform a ... | [
{
"created": "Thu, 26 Jul 2018 14:27:54 GMT",
"version": "v1"
},
{
"created": "Thu, 29 Nov 2018 14:26:09 GMT",
"version": "v2"
}
] | 2018-12-19 | [
[
"D'Agostino",
"Rocco",
""
],
[
"Luongo",
"Orlando",
""
]
] | We study the growth rate of matter perturbations in the context of teleparallel dark energy in a flat universe. We investigate the dynamics of different theoretical scenarios based on specific forms of the scalar field potential. Allowing for non-minimal coupling between torsion scalar and scalar field, we perform a ph... |
2205.04462 | Pardyumn Kumar Sahoo | Raja Solanki, Simran Arora, P.K. Sahoo, P.H.R.S. Moraes | Bulk viscous fluid in symmetric teleparallel cosmology: theory versus
experiment | Comments are welcome | Universe, 9(1) (2023) 12 | 10.3390/universe9010012 | null | gr-qc hep-th | http://creativecommons.org/licenses/by/4.0/ | The standard formulation of General Relativity Theory, in the absence of a
cosmological constant, is unable to explain the responsible mechanism for the
observed late-time cosmic acceleration. On the other hand, by inserting the
cosmological constant in Einstein's field equations it is possible to describe
the cosmic... | [
{
"created": "Sat, 7 May 2022 06:03:53 GMT",
"version": "v1"
},
{
"created": "Wed, 23 Nov 2022 00:52:48 GMT",
"version": "v2"
}
] | 2022-12-26 | [
[
"Solanki",
"Raja",
""
],
[
"Arora",
"Simran",
""
],
[
"Sahoo",
"P. K.",
""
],
[
"Moraes",
"P. H. R. S.",
""
]
] | The standard formulation of General Relativity Theory, in the absence of a cosmological constant, is unable to explain the responsible mechanism for the observed late-time cosmic acceleration. On the other hand, by inserting the cosmological constant in Einstein's field equations it is possible to describe the cosmic a... |
gr-qc/0504145 | Michele Vallisneri | Michele Vallisneri | Geometric Time Delay Interferometry | 18 pages REVTeX4, 6 EPS figures, revised PRD version. Related
materials can be found at http://www.vallis.org/tdi | Phys.Rev.D72:042003,2005; Erratum-ibid.D76:109903,2007 | 10.1103/PhysRevD.72.042003 10.1103/PhysRevD.76.109903 | null | gr-qc | null | The space-based gravitational-wave observatory LISA, a NASA-ESA mission to be
launched after 2012, will achieve its optimal sensitivity using Time Delay
Interferometry (TDI), a LISA-specific technique needed to cancel the otherwise
overwhelming laser noise in the inter-spacecraft phase measurements. The TDI
observabl... | [
{
"created": "Fri, 29 Apr 2005 19:08:15 GMT",
"version": "v1"
},
{
"created": "Tue, 28 Jun 2005 19:27:51 GMT",
"version": "v2"
}
] | 2014-11-17 | [
[
"Vallisneri",
"Michele",
""
]
] | The space-based gravitational-wave observatory LISA, a NASA-ESA mission to be launched after 2012, will achieve its optimal sensitivity using Time Delay Interferometry (TDI), a LISA-specific technique needed to cancel the otherwise overwhelming laser noise in the inter-spacecraft phase measurements. The TDI observables... |
2407.15289 | Marco Galoppo | Marco Galoppo, Rudeep Gaur and Christopher Harvey-Hawes | Kerr--Newman Memory Effect | 24 pages, 0 figures | null | null | null | gr-qc hep-th math-ph math.MP | http://creativecommons.org/licenses/by/4.0/ | We bring the Kerr--Newman spacetime into the Bondi--Sachs gauge by means of
zero angular momentum, null geodesics. We compute the memory effect produced at
the black hole horizon by a transient gravitational shock wave, which from
future null infinity is seen as a Bondi-Metzner-Sachs supertranslation. This
results in... | [
{
"created": "Sun, 21 Jul 2024 22:56:38 GMT",
"version": "v1"
}
] | 2024-07-23 | [
[
"Galoppo",
"Marco",
""
],
[
"Gaur",
"Rudeep",
""
],
[
"Harvey-Hawes",
"Christopher",
""
]
] | We bring the Kerr--Newman spacetime into the Bondi--Sachs gauge by means of zero angular momentum, null geodesics. We compute the memory effect produced at the black hole horizon by a transient gravitational shock wave, which from future null infinity is seen as a Bondi-Metzner-Sachs supertranslation. This results in a... |
gr-qc/0311002 | Francisco Lobo | Francisco S.N. Lobo and Paulo Crawford | Linearized stability analysis of thin-shell wormholes with a
cosmological constant | 16 pages, 10 figures, LaTeX2e, IOP style files. Accepted for
publication in Classical and Quantum Gravity | Class.Quant.Grav. 21 (2004) 391-404 | 10.1088/0264-9381/21/2/004 | null | gr-qc | null | Spherically symmetric thin-shell wormholes in the presence of a cosmological
constant are constructed applying the cut-and-paste technique implemented by
Visser. Using the Darmois-Israel formalism the surface stresses, which are
concentrated at the wormhole throat, are determined. This construction allows
one to appl... | [
{
"created": "Sat, 1 Nov 2003 11:33:51 GMT",
"version": "v1"
}
] | 2009-11-10 | [
[
"Lobo",
"Francisco S. N.",
""
],
[
"Crawford",
"Paulo",
""
]
] | Spherically symmetric thin-shell wormholes in the presence of a cosmological constant are constructed applying the cut-and-paste technique implemented by Visser. Using the Darmois-Israel formalism the surface stresses, which are concentrated at the wormhole throat, are determined. This construction allows one to apply ... |
1607.07714 | Robert Bluhm | R. Bluhm | Background Fields and Gravity | Presented at the Seventh Meeting on CPT and Lorentz Symmetry,
Bloomington, Indiana, June 20-24, 2016 | null | null | null | gr-qc hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Gravitational theories with fixed background fields break diffeomorphism
invariance. This breaking can be spontaneous or explicit. A brief summary of
the main consequences of these types of breaking is presented.
| [
{
"created": "Tue, 26 Jul 2016 14:25:05 GMT",
"version": "v1"
}
] | 2016-07-27 | [
[
"Bluhm",
"R.",
""
]
] | Gravitational theories with fixed background fields break diffeomorphism invariance. This breaking can be spontaneous or explicit. A brief summary of the main consequences of these types of breaking is presented. |
0903.4352 | Wlodzimierz Piechocki | Przemyslaw Malkiewicz and Wlodzimierz Piechocki | Energy Scale of the Big Bounce | 5 pages, no figures, version published by Phys Rev D80, 063506 (2009) | Phys.Rev.D80:063506,2009 | 10.1103/PhysRevD.80.063506 | INS 10 | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We examine the nature of the cosmological Big Bounce transition within the
loop geometry underlying loop quantum cosmology at classical and quantum
levels. Our canonical quantization method is an alternative to the standard
loop quantum cosmology. An evolution parameter we use has a clear
interpretation. Our method o... | [
{
"created": "Wed, 25 Mar 2009 14:22:39 GMT",
"version": "v1"
},
{
"created": "Thu, 13 Aug 2009 08:06:06 GMT",
"version": "v2"
},
{
"created": "Wed, 23 Sep 2009 09:44:08 GMT",
"version": "v3"
}
] | 2009-09-24 | [
[
"Malkiewicz",
"Przemyslaw",
""
],
[
"Piechocki",
"Wlodzimierz",
""
]
] | We examine the nature of the cosmological Big Bounce transition within the loop geometry underlying loop quantum cosmology at classical and quantum levels. Our canonical quantization method is an alternative to the standard loop quantum cosmology. An evolution parameter we use has a clear interpretation. Our method ope... |
1807.10343 | S Habib Mazharimousavi | S. Danial Forghani, S. Habib Mazharimousavi and M. Halilsoy | Fate of a Thin-Shell Wormhole Powered by Morris-Thorne Wormhole | 6 pages, one figure | Eur. Phys. J. Plus (2018) 133: 497 | 10.1140/epjp/i2018-12409-y | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Asymmetric thin-shell wormholes from two traversable Morris-Thorne wormhole
spacetimes, with identical shape but different redshift functions, are
constructed. Energy density of the thin-shell wormhole derives its power from a
Morris-Thorne wormhole which is already exotic. By choice, the weak energy
condition for th... | [
{
"created": "Thu, 26 Jul 2018 20:13:38 GMT",
"version": "v1"
}
] | 2019-01-17 | [
[
"Forghani",
"S. Danial",
""
],
[
"Mazharimousavi",
"S. Habib",
""
],
[
"Halilsoy",
"M.",
""
]
] | Asymmetric thin-shell wormholes from two traversable Morris-Thorne wormhole spacetimes, with identical shape but different redshift functions, are constructed. Energy density of the thin-shell wormhole derives its power from a Morris-Thorne wormhole which is already exotic. By choice, the weak energy condition for the ... |
gr-qc/0403027 | Martin Zofka | M. Zofka | Comments on photonic shells | null | Class.Quant.Grav. 21 (2004) 465-470 | 10.1088/0264-9381/21/2/010 | null | gr-qc | null | We investigate in detail the special case of an infinitely thin static
cylindrical shell composed of counter-rotating photons on circular geodetical
paths separating two distinct parts of Minkowski spacetimes--one inside and the
other outside the shell--and compare it to a static disk shell formed by null
particles c... | [
{
"created": "Fri, 5 Mar 2004 13:50:10 GMT",
"version": "v1"
}
] | 2009-11-10 | [
[
"Zofka",
"M.",
""
]
] | We investigate in detail the special case of an infinitely thin static cylindrical shell composed of counter-rotating photons on circular geodetical paths separating two distinct parts of Minkowski spacetimes--one inside and the other outside the shell--and compare it to a static disk shell formed by null particles cou... |
2005.09464 | Ali \"Ovg\"un Dr. | Wajiha Javed, Ali Hamza and Ali \"Ovg\"un | Effect of Non-linear Electrodynamics on Weak field deflection angle by
Black Hole | 12 pages. Accepted for publication in Physical Review D
(https://journals.aps.org/prd/abstract/10.1103/PhysRevD.101.103521) | Phys. Rev. D 101, 103521 (2020) | 10.1103/PhysRevD.101.103521 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this work, we investigate the weak deflection angle of light from exact
black hole within the non-linear electrodynamics. First we calculate the
Gaussian optical curvature using the optical spacetime geometry. With the help
of modern geometrical way popularized by Gibbons and Werner, we examine the
deflection angl... | [
{
"created": "Fri, 15 May 2020 20:51:49 GMT",
"version": "v1"
}
] | 2020-05-20 | [
[
"Javed",
"Wajiha",
""
],
[
"Hamza",
"Ali",
""
],
[
"Övgün",
"Ali",
""
]
] | In this work, we investigate the weak deflection angle of light from exact black hole within the non-linear electrodynamics. First we calculate the Gaussian optical curvature using the optical spacetime geometry. With the help of modern geometrical way popularized by Gibbons and Werner, we examine the deflection angle ... |
gr-qc/0306022 | Sebastian Schlicht | Sebastian Schlicht | Considerations on the Unruh Effect: Causality and Regularization | 19 pages, 2 figures, v2: some minor changes | Class.Quant.Grav. 21 (2004) 4647-4660 | 10.1088/0264-9381/21/19/011 | null | gr-qc | null | This article is motivated by the observation, that calculations of the Unruh
effect based on idealized particle detectors are usually made in a way that
involves integrations along the {\em entire} detector trajectory up to the
infinitely remote {\em future}. We derive an expression which allows
time-dependence of th... | [
{
"created": "Thu, 5 Jun 2003 13:44:00 GMT",
"version": "v1"
},
{
"created": "Wed, 20 Aug 2003 15:00:59 GMT",
"version": "v2"
}
] | 2009-11-10 | [
[
"Schlicht",
"Sebastian",
""
]
] | This article is motivated by the observation, that calculations of the Unruh effect based on idealized particle detectors are usually made in a way that involves integrations along the {\em entire} detector trajectory up to the infinitely remote {\em future}. We derive an expression which allows time-dependence of the ... |
1712.06582 | Iber\^e Kuntz | Iber\^e Kuntz | Quantum Corrections to the Gravitational Backreaction | null | null | 10.1140/epjc/s10052-017-5487-0 | null | gr-qc hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Effective Field Theory techniques are used to study the leading order quantum
corrections to the gravitational wave backreaction. The effective stress-energy
tensor is calculated and it is shown that it has a non-vanishing trace that
contributes to the cosmological constant. By comparing the result obtained with
LIGO... | [
{
"created": "Mon, 18 Dec 2017 18:55:23 GMT",
"version": "v1"
}
] | 2018-01-03 | [
[
"Kuntz",
"Iberê",
""
]
] | Effective Field Theory techniques are used to study the leading order quantum corrections to the gravitational wave backreaction. The effective stress-energy tensor is calculated and it is shown that it has a non-vanishing trace that contributes to the cosmological constant. By comparing the result obtained with LIGO's... |
gr-qc/9701022 | James Hartle | James B. Hartle (Institute for Theoretical Physics, University of
California, Santa Barbara) | Quantum Cosmology: Problems for the 21st Century | 18pages, uses REVTEX 3.0, one embedded ps figure, corrected reference | in Proceedings of the 11th Nishinomiya-Yukawa Symposium, ed by K.
Kikkawa, H. Kunitomo, and H. Ohtsubo, World Scientific Singapore, 1998. | null | NSF-ITP-96-141, UCSBTH-96-26 | gr-qc hep-th quant-ph | null | Two fundamental laws are needed for prediction in the universe: (1) a basic
dynamical law and (2) a law for the cosmological initial condition. Quantum
cosmology is the area of basic research concerned with the search for a theory
of the initial cosmological state. The issues involved in this search are
presented in ... | [
{
"created": "Sat, 11 Jan 1997 00:22:53 GMT",
"version": "v1"
},
{
"created": "Thu, 16 Jan 1997 19:04:11 GMT",
"version": "v2"
}
] | 2008-02-03 | [
[
"Hartle",
"James B.",
"",
"Institute for Theoretical Physics, University of\n California, Santa Barbara"
]
] | Two fundamental laws are needed for prediction in the universe: (1) a basic dynamical law and (2) a law for the cosmological initial condition. Quantum cosmology is the area of basic research concerned with the search for a theory of the initial cosmological state. The issues involved in this search are presented in th... |
gr-qc/0308083 | Robin W. Tucker | Robin W. Tucker (Lancaster University UK) | Field-Particle Dynamics in Spacetime Geometries | LaTeX, 28 pages | null | 10.1098/rspa.2004.1311 | null | gr-qc | null | With the aid of a Fermi-Walker chart associated with an orthonormal frame
attached to a time-like curve in spacetime, a discussion is given of
relativistic balance laws that may be used to construct models of massive
particles with spin, electric charge and a magnetic moment,interacting with
background electromagneti... | [
{
"created": "Tue, 26 Aug 2003 09:15:41 GMT",
"version": "v1"
}
] | 2009-11-10 | [
[
"Tucker",
"Robin W.",
"",
"Lancaster University UK"
]
] | With the aid of a Fermi-Walker chart associated with an orthonormal frame attached to a time-like curve in spacetime, a discussion is given of relativistic balance laws that may be used to construct models of massive particles with spin, electric charge and a magnetic moment,interacting with background electromagnetic ... |
2105.11691 | Ilham Prasetyo | I. Prasetyo, H. S. Ramadhan and A. Sulaksono | An Ultra-compact Object from Semi-classical Gravity | 33 pages, 9 figures, accepted for publication in Physical Review D | Phys. Rev. D 103 (2021) 123536 | 10.1103/PhysRevD.103.123536 | null | gr-qc hep-th | http://creativecommons.org/licenses/by/4.0/ | In a recent report, Carballo-Rubio [1] utilizes the semi-classical theory of
gravity to obtain a generalized Tolman-Oppenheimer-Volkoff (TOV) equation. This
model has a new coupling constant $l_p$ implying two different modified TOV
equation forms characterized by the sign of $p'$. The negative branch reduces
to the ... | [
{
"created": "Tue, 25 May 2021 06:18:06 GMT",
"version": "v1"
}
] | 2021-06-21 | [
[
"Prasetyo",
"I.",
""
],
[
"Ramadhan",
"H. S.",
""
],
[
"Sulaksono",
"A.",
""
]
] | In a recent report, Carballo-Rubio [1] utilizes the semi-classical theory of gravity to obtain a generalized Tolman-Oppenheimer-Volkoff (TOV) equation. This model has a new coupling constant $l_p$ implying two different modified TOV equation forms characterized by the sign of $p'$. The negative branch reduces to the or... |
2209.04813 | Zacharias Roupas | Zacharias Roupas | The Cosmological Black Hole | Talk given in the 11th International Conference on Mathematical
Modelling in Physical Sciences | AIP Conf. Proc. 2872, 060012 (2023) | 10.1063/5.0162770 | null | gr-qc astro-ph.HE hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We briefly review the recent novel solution of General Relativity, we call
the cosmological black hole, firstly discovered in [Roupas, Z. Eur. Phys. J. C
82, 255 (2022)]. A dark energy universe and a Schwartzschild black hole are
matched on a common dual event horizon which is finitely thick due to quantum
indetermin... | [
{
"created": "Sun, 11 Sep 2022 08:18:33 GMT",
"version": "v1"
}
] | 2024-02-09 | [
[
"Roupas",
"Zacharias",
""
]
] | We briefly review the recent novel solution of General Relativity, we call the cosmological black hole, firstly discovered in [Roupas, Z. Eur. Phys. J. C 82, 255 (2022)]. A dark energy universe and a Schwartzschild black hole are matched on a common dual event horizon which is finitely thick due to quantum indeterminac... |
1510.01925 | Suzanne Lan\'ery | Suzanne Lan\'ery and Thomas Thiemann | Projective Loop Quantum Gravity II. Searching for Semi-Classical States | 51 pages, 1 figure | J. Math. Phys. 58(5):052302 (2017) | 10.1063/1.4983133 | null | gr-qc hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In [arXiv:1411.3592] an extension of the Ashtekar-Lewandowski (AL) state
space of Loop Quantum Gravity was set up with the help a projective formalism
introduced by Kijowski [Kijowski 1977; see also: arXiv:1304.6330,
arXiv:1411.3590]. The motivation for this work was to achieve a more balanced
treatment of the positi... | [
{
"created": "Wed, 7 Oct 2015 12:42:55 GMT",
"version": "v1"
}
] | 2017-05-23 | [
[
"Lanéry",
"Suzanne",
""
],
[
"Thiemann",
"Thomas",
""
]
] | In [arXiv:1411.3592] an extension of the Ashtekar-Lewandowski (AL) state space of Loop Quantum Gravity was set up with the help a projective formalism introduced by Kijowski [Kijowski 1977; see also: arXiv:1304.6330, arXiv:1411.3590]. The motivation for this work was to achieve a more balanced treatment of the position... |
2312.11908 | Yi Liao | Haiyuan Feng, Yi Liao, and Rong-Jia Yang | Stability of the de-Sitter universe: One-loop nonlocal $f(R)$ gravity | 26 pages,0 figure | JHEP 05 (2024) 115 | 10.1007/JHEP05(2024)115 | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | With the method of the background field expansion, we investigate the
one-loop quantization of the Euclidean nonlocal $f(R)$ model in the de-Sitter
universe. We obtain the ghost-free condition (GFC) based on the transformation
from the Jordan frame to the Einstein frame and the classical stability
condition (CSC) sat... | [
{
"created": "Tue, 19 Dec 2023 07:30:57 GMT",
"version": "v1"
},
{
"created": "Sat, 11 May 2024 02:02:21 GMT",
"version": "v2"
}
] | 2024-05-14 | [
[
"Feng",
"Haiyuan",
""
],
[
"Liao",
"Yi",
""
],
[
"Yang",
"Rong-Jia",
""
]
] | With the method of the background field expansion, we investigate the one-loop quantization of the Euclidean nonlocal $f(R)$ model in the de-Sitter universe. We obtain the ghost-free condition (GFC) based on the transformation from the Jordan frame to the Einstein frame and the classical stability condition (CSC) satis... |
gr-qc/0308037 | Ujjal Debnath | Ujjal Debnath, Subenoy Chakraborty | Role of Initial Data in Higher Dimensional Quasi-Spherical Gravitational
Collapse | 7 Latex Pages, RevTex Style, No figures | Gen.Rel.Grav. 37 (2005) 225-232 | 10.1007/s10714-005-0011-5 | null | gr-qc | null | We study the gravitational collapse in ($n+2$)-D quasi-spherical Szekeres
space-time (which possess no killing vectors) with dust as the matter
distribution. Instead of choosing the radial coordinate `$r$' as the initial
value for the scale factor $R$, we consider a power function of $r$ as the
initial scale for the ... | [
{
"created": "Tue, 12 Aug 2003 11:18:39 GMT",
"version": "v1"
}
] | 2009-11-10 | [
[
"Debnath",
"Ujjal",
""
],
[
"Chakraborty",
"Subenoy",
""
]
] | We study the gravitational collapse in ($n+2$)-D quasi-spherical Szekeres space-time (which possess no killing vectors) with dust as the matter distribution. Instead of choosing the radial coordinate `$r$' as the initial value for the scale factor $R$, we consider a power function of $r$ as the initial scale for the ra... |
1402.1139 | Jose M. M. Senovilla | Jos\'e M. M. Senovilla | Gravitational double layers | 11 pages, no figures. Minor corrections and some references added.
Typos corrected, new comments and new reference | null | 10.1088/0264-9381/31/7/072002 | null | gr-qc hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | I analyze the properties of thin shells through which the scalar curvature R
is discontinuous in gravity theories with R + R^2 Lagrangian on the bulk. These
shells/domain walls are of a new kind because they possess, in addition to the
standard energy-momentum tensor, an external energy flux vector, an external
scala... | [
{
"created": "Wed, 5 Feb 2014 19:43:08 GMT",
"version": "v1"
},
{
"created": "Wed, 12 Feb 2014 19:26:45 GMT",
"version": "v2"
},
{
"created": "Thu, 20 Feb 2014 13:52:10 GMT",
"version": "v3"
}
] | 2015-06-18 | [
[
"Senovilla",
"José M. M.",
""
]
] | I analyze the properties of thin shells through which the scalar curvature R is discontinuous in gravity theories with R + R^2 Lagrangian on the bulk. These shells/domain walls are of a new kind because they possess, in addition to the standard energy-momentum tensor, an external energy flux vector, an external scalar ... |
0905.1654 | Lisa Goggin | The LIGO Scientific Collaboration: B. Abbott, et al | Search for gravitational wave ringdowns from perturbed black holes in
LIGO S4 data | 8 pages, 6 figures | Phys.Rev.D80:062001,2009 | 10.1103/PhysRevD.80.062001 | LIGO-P080093 | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | According to general relativity a perturbed black hole will settle to a
stationary configuration by the emission of gravitational radiation. Such a
perturbation will occur, for example, in the coalescence of a black hole
binary, following their inspiral and subsequent merger. At late times the
waveform is a superposi... | [
{
"created": "Mon, 11 May 2009 16:59:48 GMT",
"version": "v1"
},
{
"created": "Mon, 17 Aug 2009 19:52:24 GMT",
"version": "v2"
}
] | 2009-09-24 | [
[
"The LIGO Scientific Collaboration",
"",
""
],
[
"Abbott",
"B.",
""
]
] | According to general relativity a perturbed black hole will settle to a stationary configuration by the emission of gravitational radiation. Such a perturbation will occur, for example, in the coalescence of a black hole binary, following their inspiral and subsequent merger. At late times the waveform is a superpositi... |
gr-qc/0105055 | Avraham E. Mayo | Jacob D. Bekenstein and Avraham E. Mayo | Black holes are one-dimensional | 5 pages, REVTEX, This essay received Second Award in the Annual Essay
Competition of the Gravity Research Foundation for the year 2001 | Gen.Rel.Grav. 33 (2001) 2095-2099 | 10.1023/A:1015278813573 | null | gr-qc | null | The holographic principle has revealed that physical systems in 3-D space,
black holes included, are basically two-dimensional as far as their information
content is concerned. This conclusion is complemented by one sketched here: as
far as entropy or information flow is concerned, a black hole behaves as a
one-dimen... | [
{
"created": "Thu, 17 May 2001 07:24:19 GMT",
"version": "v1"
}
] | 2015-06-25 | [
[
"Bekenstein",
"Jacob D.",
""
],
[
"Mayo",
"Avraham E.",
""
]
] | The holographic principle has revealed that physical systems in 3-D space, black holes included, are basically two-dimensional as far as their information content is concerned. This conclusion is complemented by one sketched here: as far as entropy or information flow is concerned, a black hole behaves as a one-dimensi... |
1311.2800 | Rong-Jia Yang | Rong-Jia Yang, Bohai Chen, Haijun Zhao, Jun Li, Yuan Liu | Test of conformal gravity with astrophysical observations | 6 pages, 2 figures | Phys. Lett. B 727 (2013) 43 | 10.1016/j.physletb.2013.10.035 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Since it can describe the rotation curves of galaxies without dark matter and
can give rise to accelerated expansion, conformal gravity attracts much
attention recently. As a theory of modified gravity, it is important to test
conformal gravity with astrophysical observations. Here we constrain conformal
gravity with... | [
{
"created": "Tue, 12 Nov 2013 14:59:17 GMT",
"version": "v1"
}
] | 2014-05-28 | [
[
"Yang",
"Rong-Jia",
""
],
[
"Chen",
"Bohai",
""
],
[
"Zhao",
"Haijun",
""
],
[
"Li",
"Jun",
""
],
[
"Liu",
"Yuan",
""
]
] | Since it can describe the rotation curves of galaxies without dark matter and can give rise to accelerated expansion, conformal gravity attracts much attention recently. As a theory of modified gravity, it is important to test conformal gravity with astrophysical observations. Here we constrain conformal gravity with S... |
1503.06539 | Shinji Tsujikawa | Antonio De Felice, Kazuya Koyama, Shinji Tsujikawa | Observational signatures of the theories beyond Horndeski | 20 pages, 4 figures, published in JCAP | JCAP 1505 (2015) 058 | 10.1088/1475-7516/2015/05/058 | null | gr-qc astro-ph.CO hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In the approach of the effective field theory of modified gravity, we derive
the equations of motion for linear perturbations in the presence of a
barotropic perfect fluid on the flat isotropic cosmological background. In a
simple version of Gleyzes-Langlois-Piazza-Vernizzi (GLPV) theories, which is
the minimum exten... | [
{
"created": "Mon, 23 Mar 2015 06:19:43 GMT",
"version": "v1"
},
{
"created": "Thu, 28 May 2015 15:02:46 GMT",
"version": "v2"
}
] | 2015-05-29 | [
[
"De Felice",
"Antonio",
""
],
[
"Koyama",
"Kazuya",
""
],
[
"Tsujikawa",
"Shinji",
""
]
] | In the approach of the effective field theory of modified gravity, we derive the equations of motion for linear perturbations in the presence of a barotropic perfect fluid on the flat isotropic cosmological background. In a simple version of Gleyzes-Langlois-Piazza-Vernizzi (GLPV) theories, which is the minimum extensi... |
gr-qc/9610011 | Piotr Chrusciel | Piotr T. Chru\'sciel | On rigidity of analytic black holes | 10 pages, latex with amssymb | Commun.Math.Phys. 189 (1997) 1-7 | 10.1007/s002200050187 | null | gr-qc | null | We establish global extendibility (to the domain of outer communications) of
locally defined isometries of appropriately regular analytic black holes. This
allows us to fill a gap in the Hawking-Ellis proof of black-hole rigidity.
| [
{
"created": "Wed, 9 Oct 1996 11:20:52 GMT",
"version": "v1"
}
] | 2009-10-28 | [
[
"Chruściel",
"Piotr T.",
""
]
] | We establish global extendibility (to the domain of outer communications) of locally defined isometries of appropriately regular analytic black holes. This allows us to fill a gap in the Hawking-Ellis proof of black-hole rigidity. |
gr-qc/0007007 | Sergei M. Kopeikin | Sergei M. Kopeikin (University of Missouri-Columbia, USA), N.V.
Shuygina, M.V. Vasilyev, E.I. Yagudina (Institute of Applied Astronomy,
Russia), L.I. Yagudin (Pulkovo Observatory, Russia) | Numerical Data-Processing Simulations of Microarcsecond Classical and
Relativistic Effects in Space Astrometry | 5 pages, the talk given at the IAU Coll. 180 "Towards Models and
Constants for Sub-Microarcsecond Astrometry", Washington DC, March 26 - April
2, 2000 | null | null | null | gr-qc astro-ph | null | The accuracy of astrometric observations conducted via a space-borne optical
interferometer orbiting the Earth is expected to approach a few
microarcseconds. Data processing of such extremely high-precision measurements
requires access to a rigorous relativistic model of light ray propagation
developed in the framewo... | [
{
"created": "Wed, 5 Jul 2000 17:15:54 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Kopeikin",
"Sergei M.",
"",
"University of Missouri-Columbia, USA"
],
[
"Shuygina",
"N. V.",
"",
"Institute of Applied Astronomy,\n Russia"
],
[
"Vasilyev",
"M. V.",
"",
"Institute of Applied Astronomy,\n Russia"
],
[
"Yagudina",
"E. I.",
... | The accuracy of astrometric observations conducted via a space-borne optical interferometer orbiting the Earth is expected to approach a few microarcseconds. Data processing of such extremely high-precision measurements requires access to a rigorous relativistic model of light ray propagation developed in the framework... |
1906.10708 | Abraham Harte | Abraham I. Harte | Gravitational lensing beyond geometric optics: II. Metric independence | 37 pages, 1 figure | Gen. Rel. Grav. 51:160 (2019) | 10.1007/s10714-019-2646-7 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Typical applications of gravitational lensing use the properties of
electromagnetic or gravitational waves to infer the geometry through which
those waves propagate. Nevertheless, the optical fields themselves - as opposed
to their interactions with material bodies - encode very little of that
geometry: It is shown h... | [
{
"created": "Tue, 25 Jun 2019 18:00:56 GMT",
"version": "v1"
},
{
"created": "Sun, 8 Dec 2019 10:40:51 GMT",
"version": "v2"
}
] | 2019-12-10 | [
[
"Harte",
"Abraham I.",
""
]
] | Typical applications of gravitational lensing use the properties of electromagnetic or gravitational waves to infer the geometry through which those waves propagate. Nevertheless, the optical fields themselves - as opposed to their interactions with material bodies - encode very little of that geometry: It is shown her... |
1001.0550 | \"Ozg\"ur Akarsu | Ozgur Akarsu, Can B. Kilinc | de Sitter expansion with anisotropic fluid in Bianchi type-I space-time | 9 pages. Some corrections made in text and references in v2 | Astrophysics and Space Science, 326 (2010) 315-322 | 10.1007/s10509-009-0254-9 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Some features of the Bianchi type-I universes in the presence of a fluid that
wields an anisotropic equation of state (EoS) parameter are discussed in the
context of general relativity. The models that exhibit de Sitter volumetric
expansion due to the constant effective energy density (the sum of the energy
density o... | [
{
"created": "Mon, 4 Jan 2010 18:20:56 GMT",
"version": "v1"
},
{
"created": "Mon, 25 Jan 2010 17:40:50 GMT",
"version": "v2"
}
] | 2010-03-02 | [
[
"Akarsu",
"Ozgur",
""
],
[
"Kilinc",
"Can B.",
""
]
] | Some features of the Bianchi type-I universes in the presence of a fluid that wields an anisotropic equation of state (EoS) parameter are discussed in the context of general relativity. The models that exhibit de Sitter volumetric expansion due to the constant effective energy density (the sum of the energy density of ... |
0806.4340 | Emanuel Gallo | Emanuel Gallo, Luis Lehner and Osvaldo Moreschi | Estimating total momentum at finite distances | 10 pages, 1 figure. Typos corrected. Comments added and a new
Appendix. To be published in PRD | Phys.Rev.D78:084027,2008 | 10.1103/PhysRevD.78.084027 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the difficulties associated with the evaluation of the total Bondi
momentum at finite distances around the central source of a general
(asymptotically flat) spacetime. Since the total momentum is only rigorously
defined at future null infinity, both finite distance and gauge effects must be
taken into accoun... | [
{
"created": "Thu, 26 Jun 2008 15:20:40 GMT",
"version": "v1"
},
{
"created": "Thu, 25 Sep 2008 18:51:28 GMT",
"version": "v2"
}
] | 2008-11-26 | [
[
"Gallo",
"Emanuel",
""
],
[
"Lehner",
"Luis",
""
],
[
"Moreschi",
"Osvaldo",
""
]
] | We study the difficulties associated with the evaluation of the total Bondi momentum at finite distances around the central source of a general (asymptotically flat) spacetime. Since the total momentum is only rigorously defined at future null infinity, both finite distance and gauge effects must be taken into account ... |
1812.02394 | Mykhailo Konchatnij | Yu. L. Bolotin, V. A. Cherkaskiy, O.Yu. Ivashtenko, M. I. Konchatnyi,
L. G. Zazunov | APPLIED COSMOGRAPHY: A Pedagogical Review | 66 pages, 4 figures | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Based on the cosmological principle only, the method of describing the
evolution of the Universe, called cosmography, is in fact a kinematics of
cosmological expansion. The effectiveness of cosmography lies in the fact that
it allows, based on the results of observations, to perform a rigid selection
of models that d... | [
{
"created": "Thu, 6 Dec 2018 07:59:33 GMT",
"version": "v1"
}
] | 2018-12-07 | [
[
"Bolotin",
"Yu. L.",
""
],
[
"Cherkaskiy",
"V. A.",
""
],
[
"Ivashtenko",
"O. Yu.",
""
],
[
"Konchatnyi",
"M. I.",
""
],
[
"Zazunov",
"L. G.",
""
]
] | Based on the cosmological principle only, the method of describing the evolution of the Universe, called cosmography, is in fact a kinematics of cosmological expansion. The effectiveness of cosmography lies in the fact that it allows, based on the results of observations, to perform a rigid selection of models that do ... |
gr-qc/0102080 | Tsukasa Murata | Tsukasa Murata, Keiji Tsunoda, Kazuhiro Yamamoto (Hiroshima Univ.) | Explicit Derivation of the Fluctuation-Dissipation Relation of the
Vacuum Noise in the N-dimensional de Sitter Spacetime | 22 pages including 2 figures, to be published in Int. J. Mod. Phys. A | null | 10.1142/S0217751X01004244 | HUPD-0010 | gr-qc hep-ph hep-th | null | Motivated by a recent work by Terashima (Phys. Rev. D60 084001), we revisit
the fluctuation-dissipation (FD) relation between the dissipative coefficient
of a detector and the vacuum noise of fields in curved spacetime. In an
explicit manner we show that the dissipative coefficient obtained from
classical equations o... | [
{
"created": "Mon, 19 Feb 2001 04:37:44 GMT",
"version": "v1"
}
] | 2009-11-07 | [
[
"Murata",
"Tsukasa",
"",
"Hiroshima Univ."
],
[
"Tsunoda",
"Keiji",
"",
"Hiroshima Univ."
],
[
"Yamamoto",
"Kazuhiro",
"",
"Hiroshima Univ."
]
] | Motivated by a recent work by Terashima (Phys. Rev. D60 084001), we revisit the fluctuation-dissipation (FD) relation between the dissipative coefficient of a detector and the vacuum noise of fields in curved spacetime. In an explicit manner we show that the dissipative coefficient obtained from classical equations of ... |
1711.01925 | Houri Ziaeepour | Houri Ziaeepour | Non-equilibrium evolution of quantum fields during inflation and late
accelerating expansion | 57 pages, 16 figures | null | null | null | gr-qc astro-ph.CO hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | To understand mechanisms leading to inflation and late acceleration of the
Universe it is important to see how one or a set of quantum fields may evolve
such that the classical energy-momentum tensor behave similar to a cosmological
constant. In this work we consider a toy model including 3 scalar fields with
very di... | [
{
"created": "Fri, 3 Nov 2017 15:06:35 GMT",
"version": "v1"
},
{
"created": "Tue, 20 Feb 2018 10:10:27 GMT",
"version": "v2"
},
{
"created": "Sun, 15 Jul 2018 13:42:06 GMT",
"version": "v3"
}
] | 2018-07-17 | [
[
"Ziaeepour",
"Houri",
""
]
] | To understand mechanisms leading to inflation and late acceleration of the Universe it is important to see how one or a set of quantum fields may evolve such that the classical energy-momentum tensor behave similar to a cosmological constant. In this work we consider a toy model including 3 scalar fields with very diff... |
1905.02454 | Alessandro Tronconi | A.Y. Kamenshchik, A. Tronconi, G. Venturi | Induced Gravity and Quantum Cosmology | 8 pages, no figures | Phys. Rev. D 100, 023521 (2019) | 10.1103/PhysRevD.100.023521 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the Wheeler-DeWitt equation for a class of induced gravity models in
the minisuperspace approximation. In such models a scalar field nonminimally
coupled to gravity determines the effective Newton's constant. For simplicity
our analysis is limited to power-law potentials for the scalar field which have
exact... | [
{
"created": "Tue, 7 May 2019 10:32:10 GMT",
"version": "v1"
}
] | 2019-07-24 | [
[
"Kamenshchik",
"A. Y.",
""
],
[
"Tronconi",
"A.",
""
],
[
"Venturi",
"G.",
""
]
] | We study the Wheeler-DeWitt equation for a class of induced gravity models in the minisuperspace approximation. In such models a scalar field nonminimally coupled to gravity determines the effective Newton's constant. For simplicity our analysis is limited to power-law potentials for the scalar field which have exact c... |
1810.07060 | Yoshinta Setyawati | Yoshinta Eka Setyawati, Frank Ohme, Sebastian Khan | Enhancing gravitational waveform models through dynamic calibration | 14 pages, 13 figures | Phys. Rev. D 99, 024010 (2019) | 10.1103/PhysRevD.99.024010 | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | Strategies to model the inspiral, merger and ringdown gravitational waveform
of coalescing binaries are restricted in parameter space by the coverage of
available numerical-relativity simulations. When more numerical waveforms
become available, substantial efforts to manually (re-)calibrate models are
required. The a... | [
{
"created": "Tue, 16 Oct 2018 15:03:54 GMT",
"version": "v1"
}
] | 2019-01-10 | [
[
"Setyawati",
"Yoshinta Eka",
""
],
[
"Ohme",
"Frank",
""
],
[
"Khan",
"Sebastian",
""
]
] | Strategies to model the inspiral, merger and ringdown gravitational waveform of coalescing binaries are restricted in parameter space by the coverage of available numerical-relativity simulations. When more numerical waveforms become available, substantial efforts to manually (re-)calibrate models are required. The aim... |
gr-qc/0410104 | J. Daniel Christensen | J. Daniel Christensen, Louis Crane | Causal sites as quantum geometry | 21 pages, 3 eps figures; v2: added references; to appear in JMP | J.Math.Phys. 46 (2005) 122502 | 10.1063/1.2138043 | null | gr-qc math.CT | null | We propose a structure called a causal site to use as a setting for quantum
geometry, replacing the underlying point set. The structure has an interesting
categorical form, and a natural "tangent 2-bundle," analogous to the tangent
bundle of a smooth manifold. Examples with reasonable finiteness conditions
have an in... | [
{
"created": "Wed, 20 Oct 2004 20:36:48 GMT",
"version": "v1"
},
{
"created": "Wed, 28 Sep 2005 19:50:33 GMT",
"version": "v2"
}
] | 2009-11-10 | [
[
"Christensen",
"J. Daniel",
""
],
[
"Crane",
"Louis",
""
]
] | We propose a structure called a causal site to use as a setting for quantum geometry, replacing the underlying point set. The structure has an interesting categorical form, and a natural "tangent 2-bundle," analogous to the tangent bundle of a smooth manifold. Examples with reasonable finiteness conditions have an intr... |
gr-qc/0310095 | Donald Salisbury | D. C. Salisbury | Gauge Fixing and Observables in General Relativity | Contribution to the Proceedings of Spacetime and Fundamental
Interactions: Quantum Aspects, May, 2003, honoring the 65'th birthday of A.
P. Balachandran | Mod.Phys.Lett. A18 (2003) 2475-2482 | 10.1142/S0217732303012714 | null | gr-qc | null | The conventional group of four-dimensional diffeomorphisms is not realizeable
as a canonical transformation group in phase space. Yet there is a larger
field-dependent symmetry transformation group which does faithfully reproduce
4-D diffeomorphism symmetries. Some properties of this group were first
explored by Berg... | [
{
"created": "Sun, 19 Oct 2003 21:52:34 GMT",
"version": "v1"
}
] | 2009-11-10 | [
[
"Salisbury",
"D. C.",
""
]
] | The conventional group of four-dimensional diffeomorphisms is not realizeable as a canonical transformation group in phase space. Yet there is a larger field-dependent symmetry transformation group which does faithfully reproduce 4-D diffeomorphism symmetries. Some properties of this group were first explored by Bergma... |
1902.02128 | Gabriele Barca | Gabriele Barca, Paolo Di Antonio, Giovanni Montani, Alberto Patti | Semiclassical and Quantum Polymer Effects in the Flat Isotropic Universe | New submission to match published version | Phys. Rev. D 99, 123509 (2019) | 10.1103/PhysRevD.99.123509 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We analyze some relevant semiclassical and quantum features of the
implementation of Polymer Quantum Mechanics to the phenomenology of the flat
isotropic Universe.
We firstly investigate a parallelism between the semiclassical polymer
dynamics of the flat isotropic Universe, as reduced to the effect of a modified
s... | [
{
"created": "Wed, 6 Feb 2019 11:57:23 GMT",
"version": "v1"
},
{
"created": "Thu, 16 Apr 2020 10:53:21 GMT",
"version": "v2"
}
] | 2020-04-17 | [
[
"Barca",
"Gabriele",
""
],
[
"Di Antonio",
"Paolo",
""
],
[
"Montani",
"Giovanni",
""
],
[
"Patti",
"Alberto",
""
]
] | We analyze some relevant semiclassical and quantum features of the implementation of Polymer Quantum Mechanics to the phenomenology of the flat isotropic Universe. We firstly investigate a parallelism between the semiclassical polymer dynamics of the flat isotropic Universe, as reduced to the effect of a modified simpl... |
1809.03320 | Mustapha Azreg-A\"inou | Mustapha Azreg-A\"inou, Ayyesha K. Ahmed, Mubasher Jamil | Spherical accretion by normal and phantom Einstein--Maxwell--dilaton
black holes | 18 pages, 2 figures, minor corrections, references added | Class. Quantum Grav. 35 (2018) 235001 | 10.1088/1361-6382/aae997 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate the spherical accretion process for general static spherically
symmetric fluids. We analyze this process by using the general metric ansatz
for spherically symmetric black holes. We specialize to the case of normal and
phantom isothermal fluids and investigate their accretion process onto normal
and ph... | [
{
"created": "Wed, 5 Sep 2018 04:27:10 GMT",
"version": "v1"
},
{
"created": "Tue, 6 Nov 2018 06:40:32 GMT",
"version": "v2"
}
] | 2018-11-07 | [
[
"Azreg-Aïnou",
"Mustapha",
""
],
[
"Ahmed",
"Ayyesha K.",
""
],
[
"Jamil",
"Mubasher",
""
]
] | We investigate the spherical accretion process for general static spherically symmetric fluids. We analyze this process by using the general metric ansatz for spherically symmetric black holes. We specialize to the case of normal and phantom isothermal fluids and investigate their accretion process onto normal and phan... |
2110.08560 | Gamal G.L. Nashed | G.G.L. Nashed and Shin'ichi Nojiri | Black holes with Lagrange multiplier and potential in mimetic-like
gravitational theory: multi-horizon black holes | 14 pages, 12 figures. arXiv admin note: text overlap with
arXiv:2107.13550 | JCAP05(2022)011 | 10.1088/1475-7516/2022/05/011 | null | gr-qc hep-th | http://creativecommons.org/licenses/by/4.0/ | In this paper, we employ the {\bf mimetic-like} field equations coupled with
the Lagrange multiplier and %mimetic {\bf potential} to derive non-trivial
spherically symmetric black hole (BH) solutions. We divided this study into
three cases: The first one in which we take the Lagrange multiplier and
%mimetic {\bf the ... | [
{
"created": "Sat, 16 Oct 2021 12:04:46 GMT",
"version": "v1"
},
{
"created": "Tue, 19 Oct 2021 06:56:41 GMT",
"version": "v2"
},
{
"created": "Tue, 7 Dec 2021 18:13:02 GMT",
"version": "v3"
},
{
"created": "Thu, 9 Dec 2021 08:39:19 GMT",
"version": "v4"
},
{
"cre... | 2022-05-18 | [
[
"Nashed",
"G. G. L.",
""
],
[
"Nojiri",
"Shin'ichi",
""
]
] | In this paper, we employ the {\bf mimetic-like} field equations coupled with the Lagrange multiplier and %mimetic {\bf potential} to derive non-trivial spherically symmetric black hole (BH) solutions. We divided this study into three cases: The first one in which we take the Lagrange multiplier and %mimetic {\bf the po... |
2107.13804 | Tact Ikeda | Tact Ikeda, Aya Iyonaga and Tsutomu Kobayashi | Stars disformally coupled to a shift-symmetric scalar field | 12 pages, 4 figures | null | 10.1103/PhysRevD.104.104009 | RUP-21-13 | gr-qc | http://creativecommons.org/licenses/by/4.0/ | We investigate static and spherically symmetric stars disformally coupled to
a scalar field. The scalar field is assumed to be shift symmetric, and hence
the conformal and disformal factors of the metric coupled to matter are
dependent only on the kinetic term of the scalar field. Assuming that the
scalar field is li... | [
{
"created": "Thu, 29 Jul 2021 08:07:35 GMT",
"version": "v1"
}
] | 2021-11-17 | [
[
"Ikeda",
"Tact",
""
],
[
"Iyonaga",
"Aya",
""
],
[
"Kobayashi",
"Tsutomu",
""
]
] | We investigate static and spherically symmetric stars disformally coupled to a scalar field. The scalar field is assumed to be shift symmetric, and hence the conformal and disformal factors of the metric coupled to matter are dependent only on the kinetic term of the scalar field. Assuming that the scalar field is line... |
1412.7632 | Anirban Saha Dr. | Sunandan Gangopadhyay, Anirban Saha, Swarup Saha | Interaction of a circularly polarised gravitational wave with a charged
particle in a static magnetic background | 8 pages, Latex | Gen.Rel.Grav. 47 (2015) 6, 65 | 10.1007/s10714-015-1906-4 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Interaction of a charged particle in a static magnetic background, i.e., a
Landau system with circularly polarised gravitational wave (GW) is studied
quantum mechanically in the long wavelength and low velocity limit. We quantize
the classical Hamiltonian following \cite{speli}. The rotating polarization
vectors of t... | [
{
"created": "Wed, 24 Dec 2014 09:51:49 GMT",
"version": "v1"
}
] | 2015-06-03 | [
[
"Gangopadhyay",
"Sunandan",
""
],
[
"Saha",
"Anirban",
""
],
[
"Saha",
"Swarup",
""
]
] | Interaction of a charged particle in a static magnetic background, i.e., a Landau system with circularly polarised gravitational wave (GW) is studied quantum mechanically in the long wavelength and low velocity limit. We quantize the classical Hamiltonian following \cite{speli}. The rotating polarization vectors of the... |
2203.15141 | John Klauder | John R. Klauder | A Straight Forward Path to a Path Integration of Einstein's Gravity | 19 pages, a review of path integration that leads to a path integral
for gravity, a few tiny improvements, minor modifications, corrected O and
partial TeX definitions, a sign error has \ nu \rightarrow 0 TO
\nu\rightarrtow. inviity | null | 10.1016/j.aop.2022.169148 | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | Path integration is a respected form of quantization that all theoretical
quantum physicists should welcome. This elaboration begins with simple examples
of three different versions of path integration. After an important
clarification of how gravity can be properly quantized, an appropriate path
integral, that also ... | [
{
"created": "Mon, 28 Mar 2022 23:26:55 GMT",
"version": "v1"
},
{
"created": "Wed, 30 Mar 2022 14:36:10 GMT",
"version": "v2"
},
{
"created": "Mon, 11 Apr 2022 19:17:13 GMT",
"version": "v3"
},
{
"created": "Mon, 16 May 2022 23:47:25 GMT",
"version": "v4"
},
{
"c... | 2023-01-10 | [
[
"Klauder",
"John R.",
""
]
] | Path integration is a respected form of quantization that all theoretical quantum physicists should welcome. This elaboration begins with simple examples of three different versions of path integration. After an important clarification of how gravity can be properly quantized, an appropriate path integral, that also in... |
0912.2858 | Rolando Gaitan Deveras RGD | Rolando Gaitan D. (Grupo de F\'isica Te\'orica, Departamento de
F\'isica, FACYT-UC), Juan Petit and Alfredo Mej\'ia | Variational principle and free falling in a space-time with torsion | Talk given at the VII Congress of the Venezuelan Physical Society,
Caracas, December 07-11 of 2009 | null | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A comparison between the two possible variational principles for the study of
a free falling spinless particle in a space-time with torsion is noted. It is
well known that the autoparallel trajectories can be obtained from a
variational principle based on a non-holonomic mapping, starting with the
standard world-line... | [
{
"created": "Tue, 15 Dec 2009 12:10:04 GMT",
"version": "v1"
}
] | 2009-12-21 | [
[
"D.",
"Rolando Gaitan",
"",
"Grupo de Física Teórica, Departamento de\n Física, FACYT-UC"
],
[
"Petit",
"Juan",
""
],
[
"Mejía",
"Alfredo",
""
]
] | A comparison between the two possible variational principles for the study of a free falling spinless particle in a space-time with torsion is noted. It is well known that the autoparallel trajectories can be obtained from a variational principle based on a non-holonomic mapping, starting with the standard world-line a... |
0712.1273 | Lorenzo Iorio | Lorenzo Iorio | Jupiter, Saturn and the Pioneer anomaly: a planetary-based independent
test | Latex, 6 pages, no figures, no tables, 22 references. To appear in
JGP (Journal of Gravitational Physics) | Journal of Gravitational Physics, vol. 1, no.1, pp. 5-8, 2007 | null | null | gr-qc astro-ph hep-ph physics.space-ph | null | In this paper we use the ratio of the corrections to the standard
Newtonian/Einsteinian secular precessions of the longitudes of perihelia of
Jupiter and Saturn, recently estimated by the Russian astronomer E.V. Pitjeva
by fitting almost one century of data with the EPM ephemerides, to make an
independent, planetary-... | [
{
"created": "Sat, 8 Dec 2007 10:31:43 GMT",
"version": "v1"
}
] | 2007-12-15 | [
[
"Iorio",
"Lorenzo",
""
]
] | In this paper we use the ratio of the corrections to the standard Newtonian/Einsteinian secular precessions of the longitudes of perihelia of Jupiter and Saturn, recently estimated by the Russian astronomer E.V. Pitjeva by fitting almost one century of data with the EPM ephemerides, to make an independent, planetary-ba... |
gr-qc/0308012 | Rituparno Goswami | Pankaj S. Joshi, Rituparno Goswami, Naresh Dadhich | The critical role of shear in gravitational collapse | 4 pages, Letter, Revised version,clarity improved | null | null | null | gr-qc | null | We investigate here how the shearing effects present within a collapsing
matter cloud influence the outcome of gravitational collapse in terms of
formation of either a black hole or a naked singularity as the final end state.
For collapse of practically all physically reasonable matter fields, we prove
that it would ... | [
{
"created": "Wed, 6 Aug 2003 00:15:32 GMT",
"version": "v1"
},
{
"created": "Wed, 27 Aug 2003 22:24:31 GMT",
"version": "v2"
},
{
"created": "Tue, 13 Jan 2004 05:15:07 GMT",
"version": "v3"
}
] | 2007-05-23 | [
[
"Joshi",
"Pankaj S.",
""
],
[
"Goswami",
"Rituparno",
""
],
[
"Dadhich",
"Naresh",
""
]
] | We investigate here how the shearing effects present within a collapsing matter cloud influence the outcome of gravitational collapse in terms of formation of either a black hole or a naked singularity as the final end state. For collapse of practically all physically reasonable matter fields, we prove that it would al... |
1507.05587 | Daniele Trifir\'o | Daniele Trifir\`o (1 and 2), Richard O'Shaughnessy (3), Davide Gerosa
(4), Emanuele Berti (2 and 5), Michael Kesden (6), Tyson Littenberg (7),
Ulrich Sperhake (4, 2 and 8) ((1) Dipartimento di Fisica E. Fermi,
Universit\`a di Pisa, Italy, (2) Department of Physics and Astronomy, The
University of Mississippi, U... | Distinguishing black-hole spin-orbit resonances by their gravitational
wave signatures. II: Full parameter estimation | 24 pages, 14 figures | Phys. Rev. D 93, 044071 (2016) | 10.1103/PhysRevD.93.044071 | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Gravitational waves from coalescing binary black holes encode the evolution
of their spins prior to merger. In the post-Newtonian regime and on the
precession timescale, this evolution has one of three morphologies, with the
spins either librating around one of two fixed points ("resonances") or
circulating freely. I... | [
{
"created": "Mon, 20 Jul 2015 18:41:33 GMT",
"version": "v1"
},
{
"created": "Sat, 12 Dec 2015 21:17:54 GMT",
"version": "v2"
},
{
"created": "Mon, 15 Feb 2016 10:41:48 GMT",
"version": "v3"
}
] | 2016-03-02 | [
[
"Trifirò",
"Daniele",
"",
"1 and 2"
],
[
"O'Shaughnessy",
"Richard",
"",
"2 and 5"
],
[
"Gerosa",
"Davide",
"",
"2 and 5"
],
[
"Berti",
"Emanuele",
"",
"2 and 5"
],
[
"Kesden",
"Michael",
"",
"4, 2 and 8"
],
[
... | Gravitational waves from coalescing binary black holes encode the evolution of their spins prior to merger. In the post-Newtonian regime and on the precession timescale, this evolution has one of three morphologies, with the spins either librating around one of two fixed points ("resonances") or circulating freely. In ... |
gr-qc/9703011 | Alexander L. Gromov | G.N.Parfionov, R.R.Zapatrine | Empirical topology in the histories approach to quantum theory | 17 pages, latex, some technical corrections | null | null | IRB-MSP-970301 | gr-qc quant-ph | null | An idealized experiment estimating the spacetime topology is considered in
both classical and quantum frameworks. The latter is described in terms of
histories approach to quantum theory. A procedure creating combinatorial models
of topology is suggested. The correspondence between these models and
discretized spacet... | [
{
"created": "Wed, 5 Mar 1997 07:53:34 GMT",
"version": "v1"
},
{
"created": "Fri, 14 Mar 1997 07:02:12 GMT",
"version": "v2"
}
] | 2008-02-03 | [
[
"Parfionov",
"G. N.",
""
],
[
"Zapatrine",
"R. R.",
""
]
] | An idealized experiment estimating the spacetime topology is considered in both classical and quantum frameworks. The latter is described in terms of histories approach to quantum theory. A procedure creating combinatorial models of topology is suggested. The correspondence between these models and discretized spacetim... |
1411.5672 | Philipp Hoehn | Philipp A. Hoehn | Canonical linearized Regge Calculus: counting lattice gravitons with
Pachner moves | 26+13 pages, 2 appendices, many figures. References updated, small
clarifications added. This article is fairly self-contained | Phys. Rev. D 91, 124034 (2015) | 10.1103/PhysRevD.91.124034 | null | gr-qc hep-lat math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We afford a systematic and comprehensive account of the canonical dynamics of
4D Regge Calculus perturbatively expanded to linear order around a flat
background. To this end, we consider the Pachner moves which generate the most
basic and general simplicial evolution scheme. The linearized regime features a
vertex di... | [
{
"created": "Thu, 20 Nov 2014 20:55:05 GMT",
"version": "v1"
},
{
"created": "Mon, 24 Nov 2014 15:34:43 GMT",
"version": "v2"
}
] | 2015-06-17 | [
[
"Hoehn",
"Philipp A.",
""
]
] | We afford a systematic and comprehensive account of the canonical dynamics of 4D Regge Calculus perturbatively expanded to linear order around a flat background. To this end, we consider the Pachner moves which generate the most basic and general simplicial evolution scheme. The linearized regime features a vertex disp... |
1910.13522 | Merav Hadad | Merav Hadad | Truncation of Einstein equations through Gravitational Foliation | 26 pages, no figures | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In previous works, we suggested considering a (3+1)D quantum gravitational
field as an evolution of a (2+1)D renormalized quantum gravitational field
along the direction of the gravitational force. The starting point of the
suggestion is a derivation of a unique hypersurface which looks effectively
like (2+1)D from t... | [
{
"created": "Tue, 29 Oct 2019 20:42:06 GMT",
"version": "v1"
},
{
"created": "Mon, 1 Feb 2021 13:29:29 GMT",
"version": "v2"
},
{
"created": "Fri, 15 Jul 2022 10:31:54 GMT",
"version": "v3"
}
] | 2022-07-18 | [
[
"Hadad",
"Merav",
""
]
] | In previous works, we suggested considering a (3+1)D quantum gravitational field as an evolution of a (2+1)D renormalized quantum gravitational field along the direction of the gravitational force. The starting point of the suggestion is a derivation of a unique hypersurface which looks effectively like (2+1)D from the... |
1406.5919 | Ettore Minguzzi | E. Minguzzi | Area theorem and smoothness of compact Cauchy horizons | 44 pages. v2: added Sect. 2.4 on the propagation of singularities and
a second version of the area theorem (Theor. 14) which quantifies the area
increase due to the jump set | Commun. Math. Phys. 339, 57-98 (2015) | 10.1007/s00220-015-2415-8 | null | gr-qc math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We obtain an improved version of the area theorem for not necessarily
differentiable horizons which, in conjunction with a recent result on the
completeness of generators, allows us to prove that under the null energy
condition every compactly generated Cauchy horizon is smooth and compact. We
explore the consequence... | [
{
"created": "Mon, 23 Jun 2014 14:24:34 GMT",
"version": "v1"
},
{
"created": "Wed, 24 Jun 2015 13:06:06 GMT",
"version": "v2"
}
] | 2015-07-28 | [
[
"Minguzzi",
"E.",
""
]
] | We obtain an improved version of the area theorem for not necessarily differentiable horizons which, in conjunction with a recent result on the completeness of generators, allows us to prove that under the null energy condition every compactly generated Cauchy horizon is smooth and compact. We explore the consequences ... |
1007.4337 | Yuri Obukhov | Natalia Kudryashova and Yuri N. Obukhov | On the dynamics of classical particle with spin | 14 pages, Revtex, no figures | Phys.Lett.A374:3801-3805,2010 | 10.1016/j.physleta.2010.07.046 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The complete explicitly covariant 4-dimensional description of the dynamics
of a free classical particle with spin within the framework of the special
relativity theory is presented. The key point of our approach is the the
introduction of the new vector field which enables to define the analogues of
the mean spin an... | [
{
"created": "Sun, 25 Jul 2010 17:39:18 GMT",
"version": "v1"
}
] | 2014-11-21 | [
[
"Kudryashova",
"Natalia",
""
],
[
"Obukhov",
"Yuri N.",
""
]
] | The complete explicitly covariant 4-dimensional description of the dynamics of a free classical particle with spin within the framework of the special relativity theory is presented. The key point of our approach is the the introduction of the new vector field which enables to define the analogues of the mean spin and ... |
gr-qc/0207080 | Badri Krishnan | Abhay Ashtekar and Badri Krishnan | Dynamical Horizons: Energy, Angular Momentum, Fluxes and Balance Laws | 4 pages, RevTeX4. Minor typos corrected. To appear in Phys.Rev.Lett | Phys.Rev.Lett.89:261101,2002 | 10.1103/PhysRevLett.89.261101 | null | gr-qc | null | Dynamical horizons are considered in full, non-linear general relativity.
Expressions of fluxes of energy and angular momentum carried by gravitational
waves across these horizons are obtained. Fluxes are local, the energy flux is
positive and change in the horizon area is related to these fluxes. The flux
formulae a... | [
{
"created": "Sun, 21 Jul 2002 19:12:27 GMT",
"version": "v1"
},
{
"created": "Thu, 25 Jul 2002 19:09:41 GMT",
"version": "v2"
},
{
"created": "Sun, 3 Nov 2002 19:57:59 GMT",
"version": "v3"
}
] | 2011-05-05 | [
[
"Ashtekar",
"Abhay",
""
],
[
"Krishnan",
"Badri",
""
]
] | Dynamical horizons are considered in full, non-linear general relativity. Expressions of fluxes of energy and angular momentum carried by gravitational waves across these horizons are obtained. Fluxes are local, the energy flux is positive and change in the horizon area is related to these fluxes. The flux formulae als... |
2010.03708 | Yao-Zhong Zhang | Yao-Zhong Zhang | Analytic solutions of the Teukolsky equation for massless perturbations
of any spin in de Sitter background | LaTex 12 pages. To appear in J. Math. Phys | J. Math. Phys. 61, 103508 (2020) | 10.1063/5.0015848 | null | gr-qc hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present analytic solutions to the Teukolsky equation for massless
perturbations of any spin in the 4-dimensional de Sitter background. The
angular part of the equation fixes the separation constant to a discrete set
and its solution is given by hypergeometric polynomials. For the radial part,
we derive analytic po... | [
{
"created": "Thu, 8 Oct 2020 00:45:27 GMT",
"version": "v1"
}
] | 2020-10-21 | [
[
"Zhang",
"Yao-Zhong",
""
]
] | We present analytic solutions to the Teukolsky equation for massless perturbations of any spin in the 4-dimensional de Sitter background. The angular part of the equation fixes the separation constant to a discrete set and its solution is given by hypergeometric polynomials. For the radial part, we derive analytic powe... |
gr-qc/9703061 | Max Banados | M. Banados, M. Henneaux, C. Iannuzzo and C.M. Viallet | A note on the gauge symmetries of pure Chern-Simons theories with p-form
gauge fields | 22 pages, latex, one eps figure | Class.Quant.Grav. 14 (1997) 2455-2468 | 10.1088/0264-9381/14/9/006 | ULB-TH-97/04, PAR-LPTHE-97-08 | gr-qc hep-th | null | The gauge symmetries of pure Chern-Simons theories with p-form gauge fields
are analyzed. It is shown that the number of independent gauge symmetries
depends crucially on the parity of p. The case where p is odd appears to be a
direct generalization of the p=1 case and presents the remarkable feature that
the timelik... | [
{
"created": "Fri, 21 Mar 1997 14:56:26 GMT",
"version": "v1"
}
] | 2009-10-30 | [
[
"Banados",
"M.",
""
],
[
"Henneaux",
"M.",
""
],
[
"Iannuzzo",
"C.",
""
],
[
"Viallet",
"C. M.",
""
]
] | The gauge symmetries of pure Chern-Simons theories with p-form gauge fields are analyzed. It is shown that the number of independent gauge symmetries depends crucially on the parity of p. The case where p is odd appears to be a direct generalization of the p=1 case and presents the remarkable feature that the timelike ... |
1610.06637 | Tommi Markkanen | Tommi Markkanen | Decoherence Can Relax Cosmic Acceleration: an Example | 11 pages, 2 figures. v2: expanded text, new title and abstract.
Results unchanged. v3: version accepted for publication by JCAP, added
references | null | 10.1088/1475-7516/2017/09/022 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate back reaction in de Sitter space in an approach where only
states that are observationally accessible are included in the density matrix.
Using the Bunch-Davies vacuum as the initial condition we find for a conformal
scalar field and a cosmological constant that tracing over the unobservable
states bey... | [
{
"created": "Fri, 21 Oct 2016 00:54:49 GMT",
"version": "v1"
},
{
"created": "Thu, 24 Aug 2017 12:47:35 GMT",
"version": "v2"
},
{
"created": "Fri, 8 Sep 2017 17:00:36 GMT",
"version": "v3"
}
] | 2017-09-20 | [
[
"Markkanen",
"Tommi",
""
]
] | We investigate back reaction in de Sitter space in an approach where only states that are observationally accessible are included in the density matrix. Using the Bunch-Davies vacuum as the initial condition we find for a conformal scalar field and a cosmological constant that tracing over the unobservable states beyon... |
2306.09289 | Alexey Golovnev | Daniel Blixt, Alexey Golovnev, Maria-Jose Guzman, Ramazan Maksyutov | Geometry and covariance of symmetric teleparallel theories of gravity | minor amendments; 19 pages | Physical Review D 109 (2024) 044061 | 10.1103/PhysRevD.109.044061 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present the geometric foundations and derivations of equations of motion
for symmetric teleparallel theories of gravity in the coincident gauge and
covariant frameworks. We discuss the theoretical challenges introduced by the
auxiliary fields responsible for the covariantisation procedure. We elucidate a
tetradic ... | [
{
"created": "Thu, 15 Jun 2023 17:15:55 GMT",
"version": "v1"
},
{
"created": "Fri, 13 Oct 2023 05:23:38 GMT",
"version": "v2"
},
{
"created": "Fri, 2 Feb 2024 16:54:23 GMT",
"version": "v3"
}
] | 2024-02-27 | [
[
"Blixt",
"Daniel",
""
],
[
"Golovnev",
"Alexey",
""
],
[
"Guzman",
"Maria-Jose",
""
],
[
"Maksyutov",
"Ramazan",
""
]
] | We present the geometric foundations and derivations of equations of motion for symmetric teleparallel theories of gravity in the coincident gauge and covariant frameworks. We discuss the theoretical challenges introduced by the auxiliary fields responsible for the covariantisation procedure. We elucidate a tetradic st... |
gr-qc/0609096 | Gamal Nashed G.L. | Gamal G.L. Nashed | Kerr-Newman Solution and Energy in Teleparallel Equivalent of Einstein
Theory | 11 pages, Latex. Will appear in Mod. Phys. Lett. A | Mod.Phys.Lett.A22:1047-1056,2007 | 10.1142/S021773230702141X | null | gr-qc | null | An exact charged axially symmetric solution of the coupled gravitational and
electromagnetic fields in the teleparallel equivalent of Einstein theory is
derived. It is characterized by three parameters ``$ $the gravitational mass
$M$, the charge parameter $Q$ and the rotation parameter $a$" and its
associated metric ... | [
{
"created": "Thu, 21 Sep 2006 22:32:47 GMT",
"version": "v1"
}
] | 2010-10-27 | [
[
"Nashed",
"Gamal G. L.",
""
]
] | An exact charged axially symmetric solution of the coupled gravitational and electromagnetic fields in the teleparallel equivalent of Einstein theory is derived. It is characterized by three parameters ``$ $the gravitational mass $M$, the charge parameter $Q$ and the rotation parameter $a$" and its associated metric gi... |
gr-qc/0502023 | Jiliang Jing | Jiliang Jing | Dirac Quasinormal modes of Schwarzschild black hole | 14 pages, 5 figures | Phys.Rev. D71 (2005) 124006 | 10.1103/PhysRevD.71.124006 | null | gr-qc astro-ph hep-th | null | The quasinormal modes (QNMs) associated with the decay of Dirac field
perturbation around a Schwarzschild black hole is investigated by using
continued fraction and Hill-determinant approaches. It is shown that the
fundamental quasinormal frequencies become evenly spaced for large angular
quantum number and the spaci... | [
{
"created": "Sun, 6 Feb 2005 04:11:34 GMT",
"version": "v1"
}
] | 2009-11-11 | [
[
"Jing",
"Jiliang",
""
]
] | The quasinormal modes (QNMs) associated with the decay of Dirac field perturbation around a Schwarzschild black hole is investigated by using continued fraction and Hill-determinant approaches. It is shown that the fundamental quasinormal frequencies become evenly spaced for large angular quantum number and the spacing... |
2010.15108 | Puskar Mondal | Puskar Mondal | The linear stability of the Einstein-Euler system on negative Einstein
spaces | null | null | null | null | gr-qc math-ph math.DG math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Here we prove the linear stability of a family of `$n+1$'-dimensional
Friedmann Lema\^{i}tre Robertson Walker (FLRW) cosmological models of general
relativity. We show that the solutions to the linearized Einstein-Euler field
equations around a class of FLRW metrics with compact spatial topology
(negative Einstein sp... | [
{
"created": "Wed, 28 Oct 2020 17:50:46 GMT",
"version": "v1"
},
{
"created": "Sat, 7 Nov 2020 04:55:38 GMT",
"version": "v2"
},
{
"created": "Sun, 15 Nov 2020 20:56:54 GMT",
"version": "v3"
},
{
"created": "Tue, 8 Jun 2021 06:04:01 GMT",
"version": "v4"
},
{
"cre... | 2021-10-01 | [
[
"Mondal",
"Puskar",
""
]
] | Here we prove the linear stability of a family of `$n+1$'-dimensional Friedmann Lema\^{i}tre Robertson Walker (FLRW) cosmological models of general relativity. We show that the solutions to the linearized Einstein-Euler field equations around a class of FLRW metrics with compact spatial topology (negative Einstein spac... |
2401.04770 | Georgios Doulis | Georgios Doulis, Sebastiano Bernuzzi, Wolfgang Tichy | Entropy based flux limiting scheme for conservation laws | 18 pages, 19 figures. arXiv admin note: text overlap with
arXiv:2202.08839 | null | null | null | gr-qc astro-ph.HE | http://creativecommons.org/licenses/by/4.0/ | The construction of high-resolution shock-capturing schemes is vital in
producing highly accurate gravitational waveforms from neutron star binaries.
The entropy based flux limiting (EFL) scheme is able to perform fast converging
binary neutron star merger simulations reaching up to fourth-order convergence
in the gr... | [
{
"created": "Tue, 9 Jan 2024 19:00:15 GMT",
"version": "v1"
}
] | 2024-01-11 | [
[
"Doulis",
"Georgios",
""
],
[
"Bernuzzi",
"Sebastiano",
""
],
[
"Tichy",
"Wolfgang",
""
]
] | The construction of high-resolution shock-capturing schemes is vital in producing highly accurate gravitational waveforms from neutron star binaries. The entropy based flux limiting (EFL) scheme is able to perform fast converging binary neutron star merger simulations reaching up to fourth-order convergence in the grav... |
1902.08352 | Kai Lin | Kai Lin and Wei-Liang Qian | On matrix method for black hole quasinormal modes | null | Chinese Physics C, Vol. 43, No. 3 (2019) 035105 | 10.1088/1674-1137/43/3/035105 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper, we provide a comprehensive survey of possible applications of
the matrix method for black hole quasinormal modes. The proposed algorithm can
generally be applied to various background metrics, and in particular, it
accommodates for both analytic and numerical forms of the tortoise coordinates,
as well ... | [
{
"created": "Fri, 22 Feb 2019 03:23:30 GMT",
"version": "v1"
},
{
"created": "Wed, 27 Feb 2019 06:12:48 GMT",
"version": "v2"
}
] | 2019-02-28 | [
[
"Lin",
"Kai",
""
],
[
"Qian",
"Wei-Liang",
""
]
] | In this paper, we provide a comprehensive survey of possible applications of the matrix method for black hole quasinormal modes. The proposed algorithm can generally be applied to various background metrics, and in particular, it accommodates for both analytic and numerical forms of the tortoise coordinates, as well as... |
0901.0892 | Sanjeev S. Seahra | Sanjeev S. Seahra, Christian G. Boehmer | Einstein static universes are unstable in generic f(R) models | 7 pages, 2 figures. Minor corrections. Minor changes and references
added to match version accepted by Phys. Rev. D | Phys.Rev.D79:064009,2009 | 10.1103/PhysRevD.79.064009 | null | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study Einstein static universes in the context of generic f(R) models. It
is shown that Einstein static solutions exist for a wide variety of modified
gravity models sourced by a barotropic perfect fluid with equation of state
w=p/rho, but these solutions are always unstable to either homogeneous or
inhomogeneous ... | [
{
"created": "Wed, 7 Jan 2009 18:50:00 GMT",
"version": "v1"
},
{
"created": "Fri, 20 Feb 2009 15:56:32 GMT",
"version": "v2"
},
{
"created": "Sat, 14 Mar 2009 16:08:56 GMT",
"version": "v3"
}
] | 2009-03-14 | [
[
"Seahra",
"Sanjeev S.",
""
],
[
"Boehmer",
"Christian G.",
""
]
] | We study Einstein static universes in the context of generic f(R) models. It is shown that Einstein static solutions exist for a wide variety of modified gravity models sourced by a barotropic perfect fluid with equation of state w=p/rho, but these solutions are always unstable to either homogeneous or inhomogeneous pe... |
2103.01693 | Paulo M. S\'a | Paulo M. S\'a | Late-time evolution of the Universe within a two-scalar-field
cosmological model | 15 pages, 4 figures | Phys. Rev. D 103, 123517 (2021) | 10.1103/PhysRevD.103.123517 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate the late-time evolution of the Universe within a cosmological
model in which dark matter and dark energy are identified with two interacting
scalar fields. Using methods of qualitative analysis of dynamical systems, we
identify all cosmological solutions of this model. We show that viable
solutions -- ... | [
{
"created": "Tue, 2 Mar 2021 12:55:45 GMT",
"version": "v1"
},
{
"created": "Fri, 11 Jun 2021 17:36:43 GMT",
"version": "v2"
}
] | 2021-06-14 | [
[
"Sá",
"Paulo M.",
""
]
] | We investigate the late-time evolution of the Universe within a cosmological model in which dark matter and dark energy are identified with two interacting scalar fields. Using methods of qualitative analysis of dynamical systems, we identify all cosmological solutions of this model. We show that viable solutions -- in... |
1609.07312 | B. S. Kandemir | B. S. Kandemir and \"Umit Ertem | Quasinormal modes of BTZ black hole and Hawking-like radiation in
graphene | 5 pages,1 figure | Annalen der Physik 529(4), 1600330 (2017) | 10.1002/andp.201600330 | null | gr-qc cond-mat.mes-hall | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The Ba\~{n}ados-Teitelboim-Zanelli (BTZ) black hole model corresponds to a
solution of (2+1)-dimensional Einstein gravity with negative cosmological
constant, and by a conformal rescaling its metric can be mapped onto the
hyperbolic pseudosphere surface (Beltrami trumpet) with negative curvature.
Beltrami trumpet sha... | [
{
"created": "Fri, 23 Sep 2016 11:20:29 GMT",
"version": "v1"
}
] | 2017-04-26 | [
[
"Kandemir",
"B. S.",
""
],
[
"Ertem",
"Ümit",
""
]
] | The Ba\~{n}ados-Teitelboim-Zanelli (BTZ) black hole model corresponds to a solution of (2+1)-dimensional Einstein gravity with negative cosmological constant, and by a conformal rescaling its metric can be mapped onto the hyperbolic pseudosphere surface (Beltrami trumpet) with negative curvature. Beltrami trumpet shape... |
2403.14309 | Jan Tr\"ankle | Shyam Balaji, Guillem Dom\`enech, Gabriele Franciolini, Alexander
Ganz, Jan Tr\"ankle | Probing modified Hawking evaporation with gravitational waves from the
primordial black hole dominated universe | 18 pages+appendices, 7 figures | null | null | null | gr-qc astro-ph.CO hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | It has been recently proposed that Hawking evaporation might slow down after
a black hole has lost about half of its mass. Such an effect, called "memory
burden", is parameterized as a suppression in the mass loss rate by negative
powers $n$ of the black hole entropy and could considerably extend the lifetime
of a bl... | [
{
"created": "Thu, 21 Mar 2024 11:30:57 GMT",
"version": "v1"
}
] | 2024-03-22 | [
[
"Balaji",
"Shyam",
""
],
[
"Domènech",
"Guillem",
""
],
[
"Franciolini",
"Gabriele",
""
],
[
"Ganz",
"Alexander",
""
],
[
"Tränkle",
"Jan",
""
]
] | It has been recently proposed that Hawking evaporation might slow down after a black hole has lost about half of its mass. Such an effect, called "memory burden", is parameterized as a suppression in the mass loss rate by negative powers $n$ of the black hole entropy and could considerably extend the lifetime of a blac... |
1511.06161 | Jun-Qi Guo | Jun-Qi Guo and Pankaj S. Joshi | Spherical vacuum and scalar collapse for the Starobinsky R^2 model | 10 pages, 6 figures. Major change | Phys. Rev. D 94, 044063 (2016) | 10.1103/PhysRevD.94.044063 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Spherical vacuum and scalar collapse for the Starobinsky R^2 model is
simulated. Obtained by considering the quantum-gravitational effects, this
model would admit some cases of singularity-free cosmological spacetimes. It is
found, however, that in vacuum and scalar collapse, when f' or the physical
scalar field is s... | [
{
"created": "Thu, 19 Nov 2015 13:30:28 GMT",
"version": "v1"
},
{
"created": "Sun, 29 Nov 2015 08:01:40 GMT",
"version": "v2"
},
{
"created": "Wed, 31 Aug 2016 16:30:22 GMT",
"version": "v3"
}
] | 2016-09-01 | [
[
"Guo",
"Jun-Qi",
""
],
[
"Joshi",
"Pankaj S.",
""
]
] | Spherical vacuum and scalar collapse for the Starobinsky R^2 model is simulated. Obtained by considering the quantum-gravitational effects, this model would admit some cases of singularity-free cosmological spacetimes. It is found, however, that in vacuum and scalar collapse, when f' or the physical scalar field is str... |
1606.06589 | Hooman Moradpour Hooman | Hooman Moradpour (RIAAM, Iran), Ines G. Salako (African Inst. Math.
Sci., Cape Town & Benin, IMSP & Ketou U.) | Thermodynamic analysis of the static spherically symmetric field
equations in Rastall theory | accepted by AHEP | null | 10.1155/2016/3492796 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The restrictions on the Rastall theory due to apply the Newtonian limit to
the theory are derived. In addition, we use the zero-zero component of the
Rastall field equations as well as the unified first law of thermodynamics to
find the Misner-Sharp mass content confined to the event horizon of the
spherically symmet... | [
{
"created": "Sun, 19 Jun 2016 13:20:15 GMT",
"version": "v1"
},
{
"created": "Mon, 19 Sep 2016 08:12:29 GMT",
"version": "v2"
}
] | 2018-04-24 | [
[
"Moradpour",
"Hooman",
"",
"RIAAM, Iran"
],
[
"Salako",
"Ines G.",
"",
"African Inst. Math.\n Sci., Cape Town & Benin, IMSP & Ketou U."
]
] | The restrictions on the Rastall theory due to apply the Newtonian limit to the theory are derived. In addition, we use the zero-zero component of the Rastall field equations as well as the unified first law of thermodynamics to find the Misner-Sharp mass content confined to the event horizon of the spherically symmetri... |
0707.0876 | Yosef Zlochower | Badri Krishnan, Carlos O. Lousto, Yosef Zlochower | Quasi-Local Linear Momentum in Black-Hole Binaries | 5 pages, 3 figures, revtex4 | Phys.Rev.D76:081501,2007 | 10.1103/PhysRevD.76.081501 | null | gr-qc astro-ph | null | We propose a quasi-local formula for the linear momentum of black-hole
horizons inspired by the formalism of quasi-local horizons. We test this
formula using two complementary configurations: (i) by calculating the large
orbital linear momentum of the two black holes in an unequal-mass, zero-spin,
quasi-circular bina... | [
{
"created": "Fri, 6 Jul 2007 19:53:23 GMT",
"version": "v1"
},
{
"created": "Mon, 1 Oct 2007 15:44:42 GMT",
"version": "v2"
}
] | 2008-11-26 | [
[
"Krishnan",
"Badri",
""
],
[
"Lousto",
"Carlos O.",
""
],
[
"Zlochower",
"Yosef",
""
]
] | We propose a quasi-local formula for the linear momentum of black-hole horizons inspired by the formalism of quasi-local horizons. We test this formula using two complementary configurations: (i) by calculating the large orbital linear momentum of the two black holes in an unequal-mass, zero-spin, quasi-circular binary... |
2203.17080 | Pujian Mao | Pujian Mao and Weicheng Zhao | Notes on self-dual gravity | 11+4 pages; v2 minor revision, typos fixed; v3 minor typos corrected | JHEP 06 (2022) 081 | 10.1007/JHEP06(2022)081 | null | gr-qc hep-th | http://creativecommons.org/licenses/by/4.0/ | In this paper, we study self-dual gravity in the Newman-Penrose formalism. We
specify the self-dual solution space from the Newman-Unti solutions. We show
that the asymptotic symmetries of the self-dual gravity are still the
(extended) BMS symmetries. We transform the self-dual Taub-NUT solution into
the Newman-Unti ... | [
{
"created": "Thu, 31 Mar 2022 14:52:37 GMT",
"version": "v1"
},
{
"created": "Thu, 16 Jun 2022 02:43:22 GMT",
"version": "v2"
},
{
"created": "Mon, 5 Sep 2022 12:59:39 GMT",
"version": "v3"
}
] | 2022-09-07 | [
[
"Mao",
"Pujian",
""
],
[
"Zhao",
"Weicheng",
""
]
] | In this paper, we study self-dual gravity in the Newman-Penrose formalism. We specify the self-dual solution space from the Newman-Unti solutions. We show that the asymptotic symmetries of the self-dual gravity are still the (extended) BMS symmetries. We transform the self-dual Taub-NUT solution into the Newman-Unti ga... |
2404.14286 | Nihar Gupte | Nihar Gupte, Antoni Ramos-Buades, Alessandra Buonanno, Jonathan Gair,
M. Coleman Miller, Maximilian Dax, Stephen R. Green, Michael P\"urrer, Jonas
Wildberger, Jakob Macke, and Bernhard Sch\"olkopf | Evidence for eccentricity in the population of binary black holes
observed by LIGO-Virgo-KAGRA | 33 pages, 13 figures | null | null | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Binary black holes (BBHs) in eccentric orbits produce distinct modulations
the emitted gravitational waves (GWs). The measurement of orbital eccentricity
can provide robust evidence for dynamical binary formation channels. We analyze
57 GW events from the first, second and third observing runs of the
LIGO-Virgo-KAGRA... | [
{
"created": "Mon, 22 Apr 2024 15:37:08 GMT",
"version": "v1"
}
] | 2024-04-23 | [
[
"Gupte",
"Nihar",
""
],
[
"Ramos-Buades",
"Antoni",
""
],
[
"Buonanno",
"Alessandra",
""
],
[
"Gair",
"Jonathan",
""
],
[
"Miller",
"M. Coleman",
""
],
[
"Dax",
"Maximilian",
""
],
[
"Green",
"Stephen R.",
... | Binary black holes (BBHs) in eccentric orbits produce distinct modulations the emitted gravitational waves (GWs). The measurement of orbital eccentricity can provide robust evidence for dynamical binary formation channels. We analyze 57 GW events from the first, second and third observing runs of the LIGO-Virgo-KAGRA (... |
1301.6060 | Igor I. Smolyaninov | Igor I. Smolyaninov | Extra-dimensional metamaterials: simple models of inflation and metric
signature transitions | 14 pages, 1 figure | Universe 3,66 (2017) | 10.3390/universe3030066 | null | gr-qc physics.optics | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Lattices of topological defects, such as Abrikosov lattices and domain wall
lattices often arise as metastable ground states in higher-dimensional field
theoretical models. We demonstrate that such lattice states may be described as
extra-dimensional metamaterials via higher-dimensional effective medium theory.
A 4+1... | [
{
"created": "Fri, 25 Jan 2013 15:10:59 GMT",
"version": "v1"
}
] | 2017-09-22 | [
[
"Smolyaninov",
"Igor I.",
""
]
] | Lattices of topological defects, such as Abrikosov lattices and domain wall lattices often arise as metastable ground states in higher-dimensional field theoretical models. We demonstrate that such lattice states may be described as extra-dimensional metamaterials via higher-dimensional effective medium theory. A 4+1 d... |
1509.01572 | Andreas Kreienbuehl | Andreas Kreienbuehl and Pietro Benedusi and Daniel Ruprecht and Rolf
Krause | Time parallel gravitational collapse simulation | 16 pages, 8 figures, 1 listing, and 1 table | Communications in Applied Mathematics and Computational Science
12-1 (2017), 109--128 | 10.2140/camcos.2017.12.109 | null | gr-qc cs.CE cs.DC cs.PF | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | This article demonstrates the applicability of the parallel-in-time method
Parareal to the numerical solution of the Einstein gravity equations for the
spherical collapse of a massless scalar field. To account for the shrinking of
the spatial domain in time, a tailored load balancing scheme is proposed and
compared t... | [
{
"created": "Fri, 4 Sep 2015 19:32:45 GMT",
"version": "v1"
},
{
"created": "Sun, 24 Apr 2016 19:18:58 GMT",
"version": "v2"
},
{
"created": "Wed, 28 Dec 2016 22:06:40 GMT",
"version": "v3"
}
] | 2017-05-23 | [
[
"Kreienbuehl",
"Andreas",
""
],
[
"Benedusi",
"Pietro",
""
],
[
"Ruprecht",
"Daniel",
""
],
[
"Krause",
"Rolf",
""
]
] | This article demonstrates the applicability of the parallel-in-time method Parareal to the numerical solution of the Einstein gravity equations for the spherical collapse of a massless scalar field. To account for the shrinking of the spatial domain in time, a tailored load balancing scheme is proposed and compared to ... |
2205.00425 | Peng-Cheng Li | Tieguang Zi, Ziqi Zhou, Hai-Tian Wang, Peng-Cheng Li, Jian-dong Zhang
and Bin Chen | Analytic Kludge Waveforms for Extreme Mass Ratio Inspirals of Charged
Object around Kerr-Newman Black Hole | 15 pages, 7 figures, nb source is available, minor changes, to be
published in PRD | null | 10.1103/PhysRevD.107.023005 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We derive the approximate, ``analytic-kludge'' (AK) waveforms for the
inspiral of a charged stellar-mass compact object (CO) into a charged massive
Kerr-Newman (KN) black hole (BH). The modifications of the inspiral orbit due
to the charges in this system can be attributed to three sources: the electric
force between... | [
{
"created": "Sun, 1 May 2022 09:01:44 GMT",
"version": "v1"
},
{
"created": "Mon, 14 Nov 2022 08:54:56 GMT",
"version": "v2"
},
{
"created": "Wed, 4 Jan 2023 07:04:38 GMT",
"version": "v3"
}
] | 2023-01-25 | [
[
"Zi",
"Tieguang",
""
],
[
"Zhou",
"Ziqi",
""
],
[
"Wang",
"Hai-Tian",
""
],
[
"Li",
"Peng-Cheng",
""
],
[
"Zhang",
"Jian-dong",
""
],
[
"Chen",
"Bin",
""
]
] | We derive the approximate, ``analytic-kludge'' (AK) waveforms for the inspiral of a charged stellar-mass compact object (CO) into a charged massive Kerr-Newman (KN) black hole (BH). The modifications of the inspiral orbit due to the charges in this system can be attributed to three sources: the electric force between t... |
gr-qc/9602041 | R. Loll | R. Loll (INFN, Firenze) | A real alternative to quantum gravity in loop space | 11 pages, plain TeX, Feb 96 | Phys.Rev.D54:5381-5384,1996 | 10.1103/PhysRevD.54.5381 | DFF 244/02/96 | gr-qc hep-th | null | We show that the Hamiltonian of four-dimensional Lorentzian gravity, defined
on a space of real, SU(2)-valued connections, in spite of its non-polynomiality
possesses a natural quantum analogue in a lattice-discretized formulation of
the theory. This opens the way for a systematic investigation of its spectrum.
The u... | [
{
"created": "Wed, 21 Feb 1996 16:46:17 GMT",
"version": "v1"
}
] | 2011-09-09 | [
[
"Loll",
"R.",
"",
"INFN, Firenze"
]
] | We show that the Hamiltonian of four-dimensional Lorentzian gravity, defined on a space of real, SU(2)-valued connections, in spite of its non-polynomiality possesses a natural quantum analogue in a lattice-discretized formulation of the theory. This opens the way for a systematic investigation of its spectrum. The una... |
gr-qc/0408052 | Sergey Kozyrev | S. Kozyrev | Static spherically symmetric constant density relativistic and Newtonian
stars in the Lobachevskyan geometry | 10 pages | null | null | null | gr-qc | null | The present paper has the purpose to illustrate the importance of the ideas
and constructions of the Non-Euclidean (Lobachevsky) Geometry, which can be
applied even today for solving some conceptually important problems. We study
the static and spherically symmetric solutions to the Einstein field equations
under the... | [
{
"created": "Tue, 17 Aug 2004 08:49:00 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Kozyrev",
"S.",
""
]
] | The present paper has the purpose to illustrate the importance of the ideas and constructions of the Non-Euclidean (Lobachevsky) Geometry, which can be applied even today for solving some conceptually important problems. We study the static and spherically symmetric solutions to the Einstein field equations under the a... |
2210.15564 | Lang Liu | Zu-Cheng Chen, Sang Pyo Kim and Lang Liu | Gravitational and electromagnetic radiation from binary black holes with
electric and magnetic charges: Hyperbolic orbits on a cone | 21 pages, 2 figures; | Communications in Theoretical Physics (2023) | 10.1088/1572-9494/acce98 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We derive the hyperbolic orbit of binary black holes with electric and
magnetic charges. In the low-velocity and weak-field regime, by using the
Newtonian method, we calculate the total emission rate of energy due to
gravitational and electromagnetic radiation from binary black holes with
electric and magnetic charge... | [
{
"created": "Thu, 27 Oct 2022 15:56:57 GMT",
"version": "v1"
},
{
"created": "Thu, 8 Jun 2023 15:43:11 GMT",
"version": "v2"
}
] | 2023-06-09 | [
[
"Chen",
"Zu-Cheng",
""
],
[
"Kim",
"Sang Pyo",
""
],
[
"Liu",
"Lang",
""
]
] | We derive the hyperbolic orbit of binary black holes with electric and magnetic charges. In the low-velocity and weak-field regime, by using the Newtonian method, we calculate the total emission rate of energy due to gravitational and electromagnetic radiation from binary black holes with electric and magnetic charges ... |
2109.02844 | Wei-Liang Qian | Wei-Liang Qian, Kai Lin, Xiao-Mei Kuang, Bin Wang, and Rui-Hong Yue | Quasinormal modes in two-photon autocorrelation and the geometric-optics
approximation | 12 pages, 3 figures | null | 10.1140/epjc/s10052-022-10155-w | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this work, we study the black hole light echoes in terms of the two-photon
autocorrelation and explore their connection with the quasinormal modes. It is
shown that the above time-domain phenomenon can be analyzed by utilizing the
well-known frequency-domain relations between the quasinormal modes and
characterist... | [
{
"created": "Tue, 7 Sep 2021 03:55:51 GMT",
"version": "v1"
},
{
"created": "Mon, 10 Jan 2022 18:01:28 GMT",
"version": "v2"
},
{
"created": "Fri, 11 Feb 2022 14:06:20 GMT",
"version": "v3"
}
] | 2022-03-14 | [
[
"Qian",
"Wei-Liang",
""
],
[
"Lin",
"Kai",
""
],
[
"Kuang",
"Xiao-Mei",
""
],
[
"Wang",
"Bin",
""
],
[
"Yue",
"Rui-Hong",
""
]
] | In this work, we study the black hole light echoes in terms of the two-photon autocorrelation and explore their connection with the quasinormal modes. It is shown that the above time-domain phenomenon can be analyzed by utilizing the well-known frequency-domain relations between the quasinormal modes and characteristic... |
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