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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1712.06872 | Robert T Thompson | Robert T. Thompson | Covariant electrodynamics in linear media: Optical metric | null | Phys. Rev. D 97, 065001 (2018) | 10.1103/PhysRevD.97.065001 | null | gr-qc physics.optics | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | While the postulate of covariance of Maxwell's equations for all inertial
observers led Einstein to special relativity, it was the further demand of
general covariance -- form invariance under general coordinate transformations,
including between accelerating frames -- that led to general relativity.
Several lines of... | [
{
"created": "Tue, 19 Dec 2017 11:31:22 GMT",
"version": "v1"
},
{
"created": "Thu, 8 Mar 2018 21:01:30 GMT",
"version": "v2"
}
] | 2018-03-12 | [
[
"Thompson",
"Robert T.",
""
]
] | While the postulate of covariance of Maxwell's equations for all inertial observers led Einstein to special relativity, it was the further demand of general covariance -- form invariance under general coordinate transformations, including between accelerating frames -- that led to general relativity. Several lines of i... |
1906.07113 | Isha Kotecha | Goffredo Chirco and Isha Kotecha | Generalized Gibbs Ensembles in Discrete Quantum Gravity | 8 pages; Springer LNCS format; invited contribution to the conference
proceedings of GSI 2019, to be published in Springer's LNCS series: Geometric
Science of Information 2019, ed. F. Nielsen and F. Barbaresco | null | 10.1007/978-3-030-26980-7 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Maximum entropy principle and Souriau's symplectic generalization of Gibbs
states have provided crucial insights leading to extensions of standard
equilibrium statistical mechanics and thermodynamics. In this brief
contribution, we show how such extensions are instrumental in the setting of
discrete quantum gravity, ... | [
{
"created": "Mon, 17 Jun 2019 16:28:47 GMT",
"version": "v1"
}
] | 2019-08-12 | [
[
"Chirco",
"Goffredo",
""
],
[
"Kotecha",
"Isha",
""
]
] | Maximum entropy principle and Souriau's symplectic generalization of Gibbs states have provided crucial insights leading to extensions of standard equilibrium statistical mechanics and thermodynamics. In this brief contribution, we show how such extensions are instrumental in the setting of discrete quantum gravity, to... |
2205.05674 | Alejandro Jim\'enez-Cano | Alejandro Jim\'enez-Cano and Francisco Jos\'e Maldonado Torralba | Vector stability in quadratic metric-affine theories | 23 pages, no figures, no tables. Some parts have been extended,
rewritten and clarified. Version accepted for publication in JCAP | null | 10.1088/1475-7516/2022/09/044 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this work we study the stability of the four vector irreducible pieces of
the torsion and the nonmetricity tensors in the general quadratic metric-affine
Lagrangian in 4 dimensions. The goal will be to elucidate under which
conditions the spin-1 modes associated to such vectors can propagate in a safe
way, togethe... | [
{
"created": "Wed, 11 May 2022 17:58:14 GMT",
"version": "v1"
},
{
"created": "Fri, 29 Jul 2022 16:00:54 GMT",
"version": "v2"
}
] | 2022-09-21 | [
[
"Jiménez-Cano",
"Alejandro",
""
],
[
"Torralba",
"Francisco José Maldonado",
""
]
] | In this work we study the stability of the four vector irreducible pieces of the torsion and the nonmetricity tensors in the general quadratic metric-affine Lagrangian in 4 dimensions. The goal will be to elucidate under which conditions the spin-1 modes associated to such vectors can propagate in a safe way, together ... |
0808.3644 | Iver Brevik | Iver Brevik | Two-Fluid Viscous Modified Gravity on a RS Brane | 8 pages, no figures; to appear in Gravitation & Cosmology | Grav.Cosmol.14:332-335,2008 | 10.1134/S0202289308040075 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Singularities in the dark energy late universe are discussed, under the
assumption that the Lagrangian contains the Einstein term R plus a modified
gravity term R^\alpha, where \alpha is a constant. The 4D fluid is taken to be
viscous and composed of two components, one Einstein component where the bulk
viscosity is ... | [
{
"created": "Wed, 27 Aug 2008 07:55:19 GMT",
"version": "v1"
}
] | 2008-12-18 | [
[
"Brevik",
"Iver",
""
]
] | Singularities in the dark energy late universe are discussed, under the assumption that the Lagrangian contains the Einstein term R plus a modified gravity term R^\alpha, where \alpha is a constant. The 4D fluid is taken to be viscous and composed of two components, one Einstein component where the bulk viscosity is pr... |
1211.2702 | Daniele Pranzetti | Daniele Pranzetti | Dynamical evaporation of quantum horizons | 35 pages, 5 figures; improved and more detailed presentation;
published in CQG | 2013 Class. Quantum Grav. 30 165004 | 10.1088/0264-9381/30/16/165004 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We describe the black hole evaporation process driven by the dynamical
evolution of the quantum gravitational degrees of freedom resident at the
horizon, as identified by the loop quantum gravity kinematics. Using a parallel
with the Brownian motion, we interpret the first law of quantum dynamical
horizon in terms of... | [
{
"created": "Mon, 12 Nov 2012 17:23:44 GMT",
"version": "v1"
},
{
"created": "Mon, 15 Jul 2013 16:12:18 GMT",
"version": "v2"
}
] | 2013-07-16 | [
[
"Pranzetti",
"Daniele",
""
]
] | We describe the black hole evaporation process driven by the dynamical evolution of the quantum gravitational degrees of freedom resident at the horizon, as identified by the loop quantum gravity kinematics. Using a parallel with the Brownian motion, we interpret the first law of quantum dynamical horizon in terms of a... |
gr-qc/0507095 | Michel Leclerc | M. Leclerc | One-parameter teleparallel limit of Poincare gravity | 8 pages, revtex4, accepted for publication in Phys. Rev. D | Phys.Rev. D72 (2005) 044002 | 10.1103/PhysRevD.72.044002 | null | gr-qc | null | Poincare gauge theories that, in the absence of spinning matter, reduce to
the one-parameter teleparallel theory are investigated with respect to their
mathematical consistency and experimental viability. It is argued that the
theories can be consistently coupled to the known standard model particles.
Moreover, we es... | [
{
"created": "Fri, 22 Jul 2005 22:16:42 GMT",
"version": "v1"
}
] | 2009-11-11 | [
[
"Leclerc",
"M.",
""
]
] | Poincare gauge theories that, in the absence of spinning matter, reduce to the one-parameter teleparallel theory are investigated with respect to their mathematical consistency and experimental viability. It is argued that the theories can be consistently coupled to the known standard model particles. Moreover, we esta... |
gr-qc/0509004 | Yaakov Friedman | Yaakov Friedman and Yuriy Gofman | A new relativistic kinematics of accelerated systems | 12 pages, 2 figures | Physica Scripta82:015004, 2010 | 10.1088/0031-8949/82/01/015004 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider transformations between uniformly accelerated systems, assuming
that the Clock Hypothesis is false. We use the proper velocity-time description
of events rather than the usual space-time description in order to obtain
linear transformations. Based on the generalized principle of relativity and
the ensuing... | [
{
"created": "Thu, 1 Sep 2005 11:48:21 GMT",
"version": "v1"
},
{
"created": "Tue, 22 Jun 2010 11:55:07 GMT",
"version": "v2"
}
] | 2015-06-25 | [
[
"Friedman",
"Yaakov",
""
],
[
"Gofman",
"Yuriy",
""
]
] | We consider transformations between uniformly accelerated systems, assuming that the Clock Hypothesis is false. We use the proper velocity-time description of events rather than the usual space-time description in order to obtain linear transformations. Based on the generalized principle of relativity and the ensuing s... |
1308.0581 | Artyom Astashenok V | Artyom V. Astashenok | Effective Dark Energy Models and Dark Energy Models with Bounce in
frames of $F(T)$ Gravity | 10 pp., 5 figures | null | 10.1007/s10509-014-1846-6 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Various cosmological models in frames of $F(T)$ gravity are considered. The
general scheme of constructing effective dark energy models with various
evolution is presented. It is showed that these models in principle are
compatible with $\Lambda$CDM model. The dynamics of universe governed by $F(T)$
gravity can mimic... | [
{
"created": "Fri, 2 Aug 2013 19:00:56 GMT",
"version": "v1"
},
{
"created": "Mon, 5 Aug 2013 10:53:50 GMT",
"version": "v2"
},
{
"created": "Tue, 6 Aug 2013 10:51:41 GMT",
"version": "v3"
}
] | 2015-06-16 | [
[
"Astashenok",
"Artyom V.",
""
]
] | Various cosmological models in frames of $F(T)$ gravity are considered. The general scheme of constructing effective dark energy models with various evolution is presented. It is showed that these models in principle are compatible with $\Lambda$CDM model. The dynamics of universe governed by $F(T)$ gravity can mimics ... |
gr-qc/9303024 | null | Frederick J. Ernst and Isidore Hauser | Generalized Symmetries of the Einstein Equations | 22 pages, LaTeX document, report FJE-93-002 | null | 10.1063/1.530302 | null | gr-qc | null | We reformulate the symmetries of Gurses [Phys. Rev. Lett. 70, 367 (1993)] in
a more abstract, more geometrical manner. The type (b) transformation of
\gurses\ is related to a diffeomorphism of the differentiable manifold onto
itself. The type (c) symmetry is replaced by a more general type (c-bar)
symmetry that has t... | [
{
"created": "Sat, 20 Mar 1993 00:34:59 GMT",
"version": "v1"
}
] | 2009-10-22 | [
[
"Ernst",
"Frederick J.",
""
],
[
"Hauser",
"Isidore",
""
]
] | We reformulate the symmetries of Gurses [Phys. Rev. Lett. 70, 367 (1993)] in a more abstract, more geometrical manner. The type (b) transformation of \gurses\ is related to a diffeomorphism of the differentiable manifold onto itself. The type (c) symmetry is replaced by a more general type (c-bar) symmetry that has the... |
2102.05495 | Genly Le\'on | Genly Leon, Sebasti\'an Cu\'ellar, Esteban Gonz\'alez, Samuel Lepe,
Claudio Michea and Alfredo D. Millano | Averaging Generalized Scalar Field Cosmologies II: Locally Rotationally
Symmetric Bianchi I and flat Friedmann-Lema\^itre-Robertson-Walker models | Research Program Averaging Generalized Scalar Field Cosmologies, part
II. 27 pages, 7 compound figures. Minor revision. References updated.
Discussion improved | null | 10.1140/epjc/s10052-021-09230-5 | null | gr-qc math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Scalar field cosmologies with a generalized harmonic potential and a matter
fluid with a barotropic Equation of State (EoS) with barotropic index $\gamma$
for the Locally Rotationally Symmetric (LRS) Bianchi I and flat
Friedmann-Lema\^itre-Robertson-Walker (FLRW) metrics are investigated. Methods
from the theory of a... | [
{
"created": "Wed, 10 Feb 2021 15:35:17 GMT",
"version": "v1"
},
{
"created": "Thu, 11 Feb 2021 23:23:15 GMT",
"version": "v2"
},
{
"created": "Wed, 31 Mar 2021 03:55:41 GMT",
"version": "v3"
},
{
"created": "Tue, 27 Apr 2021 17:48:48 GMT",
"version": "v4"
}
] | 2021-06-03 | [
[
"Leon",
"Genly",
""
],
[
"Cuéllar",
"Sebastián",
""
],
[
"González",
"Esteban",
""
],
[
"Lepe",
"Samuel",
""
],
[
"Michea",
"Claudio",
""
],
[
"Millano",
"Alfredo D.",
""
]
] | Scalar field cosmologies with a generalized harmonic potential and a matter fluid with a barotropic Equation of State (EoS) with barotropic index $\gamma$ for the Locally Rotationally Symmetric (LRS) Bianchi I and flat Friedmann-Lema\^itre-Robertson-Walker (FLRW) metrics are investigated. Methods from the theory of ave... |
1308.0024 | Tirthabir Biswas | Tirthabir Biswas | Before the Bang | Essay, received "Honorable Mention" in the GRF 2013 "Essays on
Gravitation" competition | null | 10.1142/S0218271813420315 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | While inflation has been an extremely successful cosmological paradigm,
almost certainly something have had to have happened before it began. Can the
pre-inflationary phase be of any theoretical or phenomenological significance?
Could Quantum Gravity have played any interesting role in this story? These are
some of t... | [
{
"created": "Wed, 31 Jul 2013 20:07:16 GMT",
"version": "v1"
}
] | 2015-06-16 | [
[
"Biswas",
"Tirthabir",
""
]
] | While inflation has been an extremely successful cosmological paradigm, almost certainly something have had to have happened before it began. Can the pre-inflationary phase be of any theoretical or phenomenological significance? Could Quantum Gravity have played any interesting role in this story? These are some of the... |
1811.05179 | Tomohiro Harada | Tomohiro Harada, Vitor Cardoso, Daiki Miyata | Particle creation in gravitational collapse to a horizonless compact
object | 30 pages, 6 figures, typos corrected, minor correction | Phys. Rev. D 99, 044039 (2019) | 10.1103/PhysRevD.99.044039 | RUP-18-34 | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Black holes (BHs) play a central role in physics. However, gathering
observational evidence for their existence is a notoriously difficult task.
Current strategies to quantify the evidence for BHs all boil down to looking
for signs of highly compact, horizonless bodies. Here, we study particle
creation by objects whi... | [
{
"created": "Tue, 13 Nov 2018 09:40:52 GMT",
"version": "v1"
},
{
"created": "Fri, 23 Nov 2018 06:48:53 GMT",
"version": "v2"
},
{
"created": "Thu, 28 Feb 2019 05:18:51 GMT",
"version": "v3"
}
] | 2019-03-01 | [
[
"Harada",
"Tomohiro",
""
],
[
"Cardoso",
"Vitor",
""
],
[
"Miyata",
"Daiki",
""
]
] | Black holes (BHs) play a central role in physics. However, gathering observational evidence for their existence is a notoriously difficult task. Current strategies to quantify the evidence for BHs all boil down to looking for signs of highly compact, horizonless bodies. Here, we study particle creation by objects which... |
gr-qc/0504138 | Ali Shojai | F. Shojai, A. Shirinifard | Classical and Quantum Limits in Bohmian Quantum Cosmology | to appear in Int. J. Mod. Phys. D | Int.J.Mod.Phys. D14 (2005) 1333 | 10.1142/S0218271805007140 | null | gr-qc quant-ph | null | In this paper we have investigated the classical limit in Bohmian quantum
cosmology. It is observed that in the quantum regime where the quantum
potential is greater than the classical one, one has an expansion in terms of
negative powers of the Planck constant. But in the classical limit there are
regions having pos... | [
{
"created": "Thu, 28 Apr 2005 07:59:22 GMT",
"version": "v1"
}
] | 2009-11-11 | [
[
"Shojai",
"F.",
""
],
[
"Shirinifard",
"A.",
""
]
] | In this paper we have investigated the classical limit in Bohmian quantum cosmology. It is observed that in the quantum regime where the quantum potential is greater than the classical one, one has an expansion in terms of negative powers of the Planck constant. But in the classical limit there are regions having posit... |
2103.17053 | Sugumi Kanno | Sugumi Kanno, Jiro Soda, Junsei Tokuda | Indirect detection of gravitons through quantum entanglement | 5 pages, 2 figures | Phys. Rev. D 104, 083516 (2021) | 10.1103/PhysRevD.104.083516 | KOBE-COSMO-21-06 | gr-qc hep-ph hep-th quant-ph | http://creativecommons.org/licenses/by/4.0/ | We propose an experiment that the entanglement between two macroscopic
mirrors suspended at the end of an equal-arm interferometer is destroyed by the
noise of gravitons through bremsstrahlung. By calculating the correlation
function of the noise, we obtain the decoherence time from the decoherence
functional. We est... | [
{
"created": "Tue, 30 Mar 2021 14:14:47 GMT",
"version": "v1"
}
] | 2021-10-13 | [
[
"Kanno",
"Sugumi",
""
],
[
"Soda",
"Jiro",
""
],
[
"Tokuda",
"Junsei",
""
]
] | We propose an experiment that the entanglement between two macroscopic mirrors suspended at the end of an equal-arm interferometer is destroyed by the noise of gravitons through bremsstrahlung. By calculating the correlation function of the noise, we obtain the decoherence time from the decoherence functional. We estim... |
0810.3809 | Sunil Maharaj | S. Thirukkanesh, S. D. Maharaj | Charged anisotropic matter with linear equation of state | 17 pages, To appear in Class. Quantum Grav | Class.Quant.Grav.25:235001,2008 | 10.1088/0264-9381/25/23/235001 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider the general situation of a compact relativistic body with
anisotropic pressures in the presence of the electromagnetic field. The
equation of state for the matter distribution is linear and may be applied to
strange stars with quark matter. Three classes of new exact solutions are found
to the Einstein-Ma... | [
{
"created": "Tue, 21 Oct 2008 12:07:55 GMT",
"version": "v1"
}
] | 2009-01-16 | [
[
"Thirukkanesh",
"S.",
""
],
[
"Maharaj",
"S. D.",
""
]
] | We consider the general situation of a compact relativistic body with anisotropic pressures in the presence of the electromagnetic field. The equation of state for the matter distribution is linear and may be applied to strange stars with quark matter. Three classes of new exact solutions are found to the Einstein-Maxw... |
1401.0939 | Ian Harry | The LIGO Scientific Collaboration, the Virgo Collaboration and the
NINJA-2 Collaboration: J. Aasi, B. P. Abbott, R. Abbott, T. Abbott, M. R.
Abernathy, T. Accadia, F. Acernese, K. Ackley, C. Adams, T. Adams, P.
Addesso, R. X. Adhikari, C. Affeldt, M. Agathos, N. Aggarwal, O. D. Aguiar,
A. Ain, P. Ajith, A. Alem... | The NINJA-2 project: Detecting and characterizing gravitational
waveforms modelled using numerical binary black hole simulations | 52 pages, 11 figures, 7 tables | Class. Quantum Grav. 31 115004, 2014 | 10.1088/0264-9381/31/11/115004 | LIGO-P1300199 | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The Numerical INJection Analysis (NINJA) project is a collaborative effort
between members of the numerical relativity and gravitational-wave astrophysics
communities. The purpose of NINJA is to study the ability to detect
gravitational waves emitted from merging binary black holes and recover their
parameters with n... | [
{
"created": "Sun, 5 Jan 2014 21:00:19 GMT",
"version": "v1"
}
] | 2014-05-21 | [
[
"The LIGO Scientific Collaboration",
"",
""
],
[
"the Virgo Collaboration",
"",
""
],
[
"2 Collaboration",
"",
""
],
[
"Aasi",
"J.",
""
],
[
"Abbott",
"B. P.",
""
],
[
"Abbott",
"R.",
""
],
[
"Abbott",
"T.",
... | The Numerical INJection Analysis (NINJA) project is a collaborative effort between members of the numerical relativity and gravitational-wave astrophysics communities. The purpose of NINJA is to study the ability to detect gravitational waves emitted from merging binary black holes and recover their parameters with nex... |
gr-qc/9208005 | Salman Habib | Salman Habib and Henry E. Kandrup | Nonlinear Noise in Cosmology | 26 pages | Phys.Rev. D46 (1992) 5303-5314 | 10.1103/PhysRevD.46.5303 | LA-UR-92-2337 | gr-qc | null | This paper derives and analyzes exact, nonlocal Langevin equations
appropriate in a cosmological setting to describe the interaction of some
collective degree of freedom with a surrounding ``environment.'' Formally,
these equations are much more general, involving as they do a more or less
arbitrary ``system,'' chara... | [
{
"created": "Thu, 13 Aug 1992 06:42:19 GMT",
"version": "v1"
}
] | 2009-10-22 | [
[
"Habib",
"Salman",
""
],
[
"Kandrup",
"Henry E.",
""
]
] | This paper derives and analyzes exact, nonlocal Langevin equations appropriate in a cosmological setting to describe the interaction of some collective degree of freedom with a surrounding ``environment.'' Formally, these equations are much more general, involving as they do a more or less arbitrary ``system,'' charact... |
2305.18178 | Riccardo Della Monica | Riccardo Della Monica, Ivan de Martino, Mariafelicia de Laurentis | Testing space-time geometries and theories of gravity at the Galactic
Center with pulsar's time delay | 15 pages, 8 figures, 1 table. Accepted for publication in MNRAS | null | 10.1093/mnras/stad2125 | null | gr-qc astro-ph.GA astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We developed a numerical methodology to compute the fully-relativistic
propagation time of photons emitted by a pulsar in orbit around a massive
compact object, like the supermassive black hole Sagittarius A* in the Galactic
Center, whose gravitational field is described by a generic spherically
symmetric space-time.... | [
{
"created": "Mon, 29 May 2023 16:16:26 GMT",
"version": "v1"
},
{
"created": "Thu, 13 Jul 2023 10:21:09 GMT",
"version": "v2"
}
] | 2023-07-20 | [
[
"Della Monica",
"Riccardo",
""
],
[
"de Martino",
"Ivan",
""
],
[
"de Laurentis",
"Mariafelicia",
""
]
] | We developed a numerical methodology to compute the fully-relativistic propagation time of photons emitted by a pulsar in orbit around a massive compact object, like the supermassive black hole Sagittarius A* in the Galactic Center, whose gravitational field is described by a generic spherically symmetric space-time. P... |
gr-qc/0106059 | S. Antoci | S. Antoci and L. Mihich | One thing that general relativity says about photons in matter | 13 pages, 1 figure. Text to appear in Nuovo Cimento B | Nuovo Cim.B116:801-812,2001 | null | null | gr-qc cond-mat quant-ph | null | Let us abandon for a moment the strict epistemological standpoint of quantum
field theory, that eventually comes to declare nonsensical any question about
the photon posed outside the quantum theoretical framework. We can then avail
of the works by Whittaker et al. and by Synge about the particle and the wave
model o... | [
{
"created": "Tue, 19 Jun 2001 16:01:31 GMT",
"version": "v1"
},
{
"created": "Thu, 26 Jul 2001 16:45:37 GMT",
"version": "v2"
}
] | 2010-11-11 | [
[
"Antoci",
"S.",
""
],
[
"Mihich",
"L.",
""
]
] | Let us abandon for a moment the strict epistemological standpoint of quantum field theory, that eventually comes to declare nonsensical any question about the photon posed outside the quantum theoretical framework. We can then avail of the works by Whittaker et al. and by Synge about the particle and the wave model of ... |
gr-qc/0310112 | Kirill Bronnikov | K.A. Bronnikov and V.N. Melnikov | Conformal frames and D-dimensional gravity | 20 pages, to be published in: Proceedings of the 18th Course of the
School on Cosmology and Gravitation: The Gravitational Constant. Generalized
Gravitational Theories and Experiments (30 April-10 May 2003, Erice). Ed. by
G.T. Gillies, V.N. Melnikov and V. de Sabbata (Kluwer) (in print) (2003) | null | 10.1007/978-1-4020-2242-5_2 | null | gr-qc | null | We review some results concerning the properties of static, spherically
symmetric solutions of multidimensional theories of gravity: various
scalar-tensor theories and a generalized string-motivated model with multiple
scalar fields and fields of antisymmetric forms associated with p-branes. A
Kaluza-Klein type frame... | [
{
"created": "Mon, 27 Oct 2003 08:54:39 GMT",
"version": "v1"
}
] | 2015-06-25 | [
[
"Bronnikov",
"K. A.",
""
],
[
"Melnikov",
"V. N.",
""
]
] | We review some results concerning the properties of static, spherically symmetric solutions of multidimensional theories of gravity: various scalar-tensor theories and a generalized string-motivated model with multiple scalar fields and fields of antisymmetric forms associated with p-branes. A Kaluza-Klein type framewo... |
gr-qc/9812064 | Elizabeth Winstanley | E. Winstanley | Existence of stable hairy black holes in su(2) Einstein-Yang-Mills
theory with a negative cosmological constant | 22 pages, 10 figures (1 ps file), LaTeX2e, uses amssymb, graphicx
Minor changes, version to appear in Classical and Quantum Gravity | Class.Quant.Grav. 16 (1999) 1963-1978 | 10.1088/0264-9381/16/6/325 | OUTP-98-92-P | gr-qc | null | We consider black holes in EYM theory with a negative cosmological constant.
The solutions obtained are somewhat different from those for which the
cosmological constant is either positive or zero. Firstly, regular black hole
solutions exist for continuous intervals of the parameter space, rather than
discrete points... | [
{
"created": "Thu, 17 Dec 1998 17:35:42 GMT",
"version": "v1"
},
{
"created": "Thu, 29 Apr 1999 16:49:33 GMT",
"version": "v2"
}
] | 2009-10-31 | [
[
"Winstanley",
"E.",
""
]
] | We consider black holes in EYM theory with a negative cosmological constant. The solutions obtained are somewhat different from those for which the cosmological constant is either positive or zero. Firstly, regular black hole solutions exist for continuous intervals of the parameter space, rather than discrete points. ... |
gr-qc/0104092 | Kirill Bronnikov | Kirill A. Bronnikov (VNIIMS, Moscow; PFUR, Moscow) | Spherically symmetric false vacuum: no-go theorems and global structure | Latex2e, 4 pages, 1 bezier figure | Phys.Rev.D64:064013,2001 | 10.1103/PhysRevD.64.064013 | null | gr-qc hep-th | null | We enumerate all possible types of spacetime causal structures that can
appear in static, spherically symmetric configurations of a self-gravitating,
real, nonlinear, minimally coupled scalar field \phi in general relativity,
with an arbitrary potential V(\phi), not necessarily positive-definite. It is
shown that a v... | [
{
"created": "Fri, 27 Apr 2001 14:47:46 GMT",
"version": "v1"
}
] | 2014-11-17 | [
[
"Bronnikov",
"Kirill A.",
"",
"VNIIMS, Moscow; PFUR, Moscow"
]
] | We enumerate all possible types of spacetime causal structures that can appear in static, spherically symmetric configurations of a self-gravitating, real, nonlinear, minimally coupled scalar field \phi in general relativity, with an arbitrary potential V(\phi), not necessarily positive-definite. It is shown that a var... |
2204.05997 | Ashkan Alibabaei | Ashkan Alibabaei | Geometric post-Newtonian description of spin-half particles in curved
spacetime | Master's thesis, 8+77 pages, 3 figures. v2: corrected typos, updated
discussion in chapter 5, removed double references. v3: corrected further
typos | null | 10.15488/11949 | null | gr-qc hep-th math-ph math.MP quant-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Einstein Equivalence Principle (EEP) requires all matter components to
universally couple to gravity via a single common geometry: that of spacetime.
This relates quantum theory with geometry as soon as interactions with gravity
are considered. In this work, I study the geometric theory of coupling a
spin-1/2 particl... | [
{
"created": "Tue, 12 Apr 2022 13:39:09 GMT",
"version": "v1"
},
{
"created": "Thu, 2 Jun 2022 17:50:22 GMT",
"version": "v2"
},
{
"created": "Mon, 12 Sep 2022 14:12:40 GMT",
"version": "v3"
}
] | 2022-09-13 | [
[
"Alibabaei",
"Ashkan",
""
]
] | Einstein Equivalence Principle (EEP) requires all matter components to universally couple to gravity via a single common geometry: that of spacetime. This relates quantum theory with geometry as soon as interactions with gravity are considered. In this work, I study the geometric theory of coupling a spin-1/2 particle ... |
gr-qc/0106016 | Eric Gourgoulhon | Philippe Grandcl\'ement, Eric Gourgoulhon and Silvano Bonazzola (DARC,
CNRS, Observatoire de Paris) | Binary black holes in circular orbits. II. Numerical methods and first
results | 27 pages, 20 PostScript figures, improved presentation of the
regularization procedure for the shift vector, new section devoted to the
check of the momentum constraint, references added + minor corrections,
accepted for publication in Phys. Rev. D | Phys.Rev. D65 (2002) 044021 | 10.1103/PhysRevD.65.044021 | null | gr-qc astro-ph | null | We present the first results from a new method for computing spacetimes
representing corotating binary black holes in circular orbits. The method is
based on the assumption of exact equilibrium. It uses the standard 3+1
decomposition of Einstein equations and conformal flatness approximation for
the 3-metric. Contrar... | [
{
"created": "Tue, 5 Jun 2001 20:51:47 GMT",
"version": "v1"
},
{
"created": "Mon, 18 Jun 2001 09:20:41 GMT",
"version": "v2"
},
{
"created": "Fri, 28 Sep 2001 14:54:02 GMT",
"version": "v3"
},
{
"created": "Thu, 8 Nov 2001 21:29:41 GMT",
"version": "v4"
}
] | 2009-11-07 | [
[
"Grandclément",
"Philippe",
"",
"DARC,\n CNRS, Observatoire de Paris"
],
[
"Gourgoulhon",
"Eric",
"",
"DARC,\n CNRS, Observatoire de Paris"
],
[
"Bonazzola",
"Silvano",
"",
"DARC,\n CNRS, Observatoire de Paris"
]
] | We present the first results from a new method for computing spacetimes representing corotating binary black holes in circular orbits. The method is based on the assumption of exact equilibrium. It uses the standard 3+1 decomposition of Einstein equations and conformal flatness approximation for the 3-metric. Contrary ... |
gr-qc/0212040 | Marc Mars | Edward Malec, Marc Mars, Walter Simon | On the Penrose Inequality | 6 pages, no figures. To appear in the Proceedings of the Spanish
Relativity Meeting (ERE 2002), Mao, Menorca, Spain, 22-24 Sept 2002 | null | null | ERE-2002-01 | gr-qc | null | We summarize results on the Penrose inequality bounding the ADM-mass or the
Bondi mass in terms of the area of an outermost apparent horizon for
asymptotically flat initial data of Einstein's equations. We first recall the
proof, due to Geroch and to Jang and Wald, of monotonicity of the
Geroch-Hawking mass under a s... | [
{
"created": "Mon, 9 Dec 2002 15:44:42 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Malec",
"Edward",
""
],
[
"Mars",
"Marc",
""
],
[
"Simon",
"Walter",
""
]
] | We summarize results on the Penrose inequality bounding the ADM-mass or the Bondi mass in terms of the area of an outermost apparent horizon for asymptotically flat initial data of Einstein's equations. We first recall the proof, due to Geroch and to Jang and Wald, of monotonicity of the Geroch-Hawking mass under a smo... |
1411.0829 | Christian Corda Prof. | Ignazio Licata, Christian Corda, Elmo Benedetto | A Machian Request for the Equivalence Principle in Extended Gravity and
non-geodesic motion | 11 pages, accepted for publication in Gravitation and Cosmology, to
appear in in vol. 22, issue 1 (2016) of the journal | Grav. Cosm. 22, 1, 48 (2016) | 10.1134/S0202289316010102 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Starting from the origin of Einstein general relativity (GR) the request of
Mach on the theory's structure has been the core of the foundational debate.
That problem is strictly connected with the nature of the mass-energy
equivalence. It is well known that this is exactly the key point that Einstein
used to realize ... | [
{
"created": "Tue, 4 Nov 2014 08:59:09 GMT",
"version": "v1"
},
{
"created": "Sat, 26 Sep 2015 08:16:53 GMT",
"version": "v2"
}
] | 2016-04-07 | [
[
"Licata",
"Ignazio",
""
],
[
"Corda",
"Christian",
""
],
[
"Benedetto",
"Elmo",
""
]
] | Starting from the origin of Einstein general relativity (GR) the request of Mach on the theory's structure has been the core of the foundational debate. That problem is strictly connected with the nature of the mass-energy equivalence. It is well known that this is exactly the key point that Einstein used to realize a ... |
2403.12240 | Thomas Colas | C.P. Burgess, Thomas Colas, R. Holman, Greg Kaplanek and Vincent
Vennin | Cosmic Purity Lost: Perturbative and Resummed Late-Time Inflationary
Decoherence | 37 pages plus appendices, 7 figures; typos corrected | null | null | null | gr-qc astro-ph.CO hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We compute the rate with which unobserved fields decohere other fields to
which they couple, both in flat space and in de Sitter space, for scalar fields
prepared in their standard adiabatic vacuum. The process is very efficient in
de Sitter space once the modes in question pass outside the Hubble scale,
displaying t... | [
{
"created": "Mon, 18 Mar 2024 20:44:42 GMT",
"version": "v1"
},
{
"created": "Wed, 17 Apr 2024 12:10:44 GMT",
"version": "v2"
}
] | 2024-04-18 | [
[
"Burgess",
"C. P.",
""
],
[
"Colas",
"Thomas",
""
],
[
"Holman",
"R.",
""
],
[
"Kaplanek",
"Greg",
""
],
[
"Vennin",
"Vincent",
""
]
] | We compute the rate with which unobserved fields decohere other fields to which they couple, both in flat space and in de Sitter space, for scalar fields prepared in their standard adiabatic vacuum. The process is very efficient in de Sitter space once the modes in question pass outside the Hubble scale, displaying the... |
gr-qc/9611012 | Nicholas G. Phillips | Nicholas G. Phillips, B. L. Hu | Fluctuations of the vacuum energy density of quantum fields in curved
spacetime via generalized zeta functions | Uses revtex | Phys.Rev. D55 (1997) 6123-6134 | 10.1103/PhysRevD.55.6123 | UMDPP#97-58 | gr-qc | null | For quantum fields on a curved spacetime with an Euclidean section, we derive
a general expression for the stress energy tensor two-point function in terms
of the effective action. The renormalized two-point function is given in terms
of the second variation of the Mellin transform of the trace of the heat kernel
for... | [
{
"created": "Tue, 5 Nov 1996 19:47:39 GMT",
"version": "v1"
}
] | 2016-08-31 | [
[
"Phillips",
"Nicholas G.",
""
],
[
"Hu",
"B. L.",
""
]
] | For quantum fields on a curved spacetime with an Euclidean section, we derive a general expression for the stress energy tensor two-point function in terms of the effective action. The renormalized two-point function is given in terms of the second variation of the Mellin transform of the trace of the heat kernel for t... |
gr-qc/0210068 | Burc Gokden | Burc Gokden | Study of a formalism modeling massive particles at the speed of light on
a Machian basis | 12 pages, 1 figure, written using Revtex4, new arguments added | null | null | null | gr-qc | null | In this paper we develop a formalism which models all massive particles as
travelling at the speed of light(c). This is done by completing the 3-velocity
v of a test particle to the speed of light by adding an auxiliary 3-velocity
component z for the particle. According to the observations and laws of physics
defined... | [
{
"created": "Sat, 19 Oct 2002 19:59:22 GMT",
"version": "v1"
},
{
"created": "Wed, 22 Jan 2003 22:26:10 GMT",
"version": "v2"
}
] | 2007-05-23 | [
[
"Gokden",
"Burc",
""
]
] | In this paper we develop a formalism which models all massive particles as travelling at the speed of light(c). This is done by completing the 3-velocity v of a test particle to the speed of light by adding an auxiliary 3-velocity component z for the particle. According to the observations and laws of physics defined i... |
1909.12848 | Kwinten Fransen | Geoffrey Comp\`ere, Kwinten Fransen and Caroline Jonas | Transition from inspiral to plunge into a highly spinning black hole | 9 pages, published version | null | 10.1088/1361-6382/ab79d3 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We extend the Ori-Thorne-Kesden procedure to consistently describe the
non-quasi-circular transition around the ISCO from inspiral to plunge into a
black hole of arbitrary spin, including near-extremal. We identify that for
moderate or high spins the transition is governed by the Painlev\'e
transcendent equation of t... | [
{
"created": "Fri, 27 Sep 2019 18:00:04 GMT",
"version": "v1"
},
{
"created": "Thu, 2 Apr 2020 14:27:30 GMT",
"version": "v2"
}
] | 2020-06-17 | [
[
"Compère",
"Geoffrey",
""
],
[
"Fransen",
"Kwinten",
""
],
[
"Jonas",
"Caroline",
""
]
] | We extend the Ori-Thorne-Kesden procedure to consistently describe the non-quasi-circular transition around the ISCO from inspiral to plunge into a black hole of arbitrary spin, including near-extremal. We identify that for moderate or high spins the transition is governed by the Painlev\'e transcendent equation of the... |
1103.2311 | Giuseppe De Risi | G. De Risi | Cosmological backreaction of heavy string states | 13 pages, 1 figure, The discussion on the results has been extended.
To be published on MPLA | null | 10.1142/S0217732311036991 | BA-TH/11-642 | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We propose a mechanism to have a smooth transition from a pre-Big Bang phase
to a standard cosmological phase. Such transition is driven by gravitational
production of heavy massive string states that backreact on the geometry to
stop the growth of the curvature. Close to the string scale, particle creation
can becom... | [
{
"created": "Fri, 11 Mar 2011 16:45:12 GMT",
"version": "v1"
},
{
"created": "Wed, 19 Oct 2011 10:42:32 GMT",
"version": "v2"
}
] | 2015-05-27 | [
[
"De Risi",
"G.",
""
]
] | We propose a mechanism to have a smooth transition from a pre-Big Bang phase to a standard cosmological phase. Such transition is driven by gravitational production of heavy massive string states that backreact on the geometry to stop the growth of the curvature. Close to the string scale, particle creation can become ... |
gr-qc/0105015 | Kohkichi Konno | K. Konno | Moments of inertia of relativistic magnetized stars | 7 pages, 3 figures, accepted for publication in Astronomy and
Astrophysics | Astron.Astrophys.372:594,2001 | 10.1051/0004-6361:20010556 | null | gr-qc astro-ph | null | We consider principal moments of inertia of axisymmetric, magnetically
deformed stars in the context of general relativity. The general expression for
the moment of inertia with respect to the symmetric axis is obtained. The
numerical estimates are derived for several polytropic stellar models. We find
that the value... | [
{
"created": "Thu, 3 May 2001 11:27:44 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Konno",
"K.",
""
]
] | We consider principal moments of inertia of axisymmetric, magnetically deformed stars in the context of general relativity. The general expression for the moment of inertia with respect to the symmetric axis is obtained. The numerical estimates are derived for several polytropic stellar models. We find that the values ... |
2203.13757 | Joan Sola | Joan Sola Peracaula | The Cosmological Constant Problem and Running Vacuum in the Expanding
Universe | Matches the published version in Phil.Trans.Roy.Soc.Lond.A (2022) | Phil. Trans. R. Soc. A 380 (2022) 20210182 | 10.1098/rsta.2021.0182 | null | gr-qc astro-ph.CO hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | It is well-known that quantum field theory (QFT) induces a huge value of the
cosmological constant, $\Lambda$, which is outrageously inconsistent with
cosmological observations. We review here some aspects of this fundamental
theoretical conundrum (`the cosmological constant problem') and strongly argue
in favor of t... | [
{
"created": "Fri, 25 Mar 2022 16:36:38 GMT",
"version": "v1"
},
{
"created": "Sun, 17 Jul 2022 18:15:10 GMT",
"version": "v2"
}
] | 2022-07-19 | [
[
"Peracaula",
"Joan Sola",
""
]
] | It is well-known that quantum field theory (QFT) induces a huge value of the cosmological constant, $\Lambda$, which is outrageously inconsistent with cosmological observations. We review here some aspects of this fundamental theoretical conundrum (`the cosmological constant problem') and strongly argue in favor of the... |
2005.11038 | Angel Rincon | Francisco Tello-Ortiz, M. Malaver, Angel Rincon and Y. Gomez-Leyton | Relativistic Anisotropic Fluid Spheres Satisfying a Non-Linear Equation
of State | 13 pages, 5 figures. Published in EPJ C | Eur. Phys. J. C 80, 371 (2020) | 10.1140/epjc/s10052-020-7956-0 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this work, a spherically symmetric and static relativistic anisotropic
fluid sphere solution of the Einstein field equations is provided. To build
this particular model, we have imposed metric potential $e^{2\lambda(r)}$ and
an equation of state. Specifically, the so-called modified generalized
Chaplygin equation ... | [
{
"created": "Fri, 22 May 2020 07:19:40 GMT",
"version": "v1"
}
] | 2020-05-25 | [
[
"Tello-Ortiz",
"Francisco",
""
],
[
"Malaver",
"M.",
""
],
[
"Rincon",
"Angel",
""
],
[
"Gomez-Leyton",
"Y.",
""
]
] | In this work, a spherically symmetric and static relativistic anisotropic fluid sphere solution of the Einstein field equations is provided. To build this particular model, we have imposed metric potential $e^{2\lambda(r)}$ and an equation of state. Specifically, the so-called modified generalized Chaplygin equation of... |
gr-qc/0212121 | null | Sergei M. Kopeikin (Department of Physics and Astronomy, University of
Missouri-Columbia, USA) | The Post-Newtonian Treatment of the VLBI Experiment on September 8, 2002 | 15 pages, 2 figures, final version accepted to Phys. Lett. A | Phys.Lett. A312 (2003) 147-157 | 10.1016/S0375-9601(03)00613-3 | null | gr-qc astro-ph hep-ph hep-th | null | Gravitational physics of VLBI experiment conducted on September 8, 2002 and
dedicated to measure the speed of gravity (a fundamental constant in the
Einstein equations) is treated in the first post-Newtonian approximation.
Explicit speed-of-gravity parameterization is introduced to the Einstein
equations to single ou... | [
{
"created": "Mon, 30 Dec 2002 03:01:05 GMT",
"version": "v1"
},
{
"created": "Fri, 10 Jan 2003 19:09:57 GMT",
"version": "v2"
},
{
"created": "Tue, 18 Feb 2003 21:39:22 GMT",
"version": "v3"
},
{
"created": "Fri, 28 Mar 2003 21:59:09 GMT",
"version": "v4"
}
] | 2007-05-23 | [
[
"Kopeikin",
"Sergei M.",
"",
"Department of Physics and Astronomy, University of\n Missouri-Columbia, USA"
]
] | Gravitational physics of VLBI experiment conducted on September 8, 2002 and dedicated to measure the speed of gravity (a fundamental constant in the Einstein equations) is treated in the first post-Newtonian approximation. Explicit speed-of-gravity parameterization is introduced to the Einstein equations to single out ... |
1203.3223 | Carlos O. Lousto | Carlos O. Lousto, Hiroyuki Nakano, Yosef Zlochower, Bruno C. Mundim,
Manuela Campanelli (RIT) | Study of Conformally Flat Initial Data for Highly Spinning Black Holes
and their Early Evolutions | 9 pages, 8 figures | null | 10.1103/PhysRevD.85.124013 | null | gr-qc astro-ph.CO astro-ph.GA astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study conformally-flat initial data for an arbitrary number of spinning
black holes with exact analytic solutions to the momentum constraints
constructed from a linear combination of the classical Bowen-York and conformal
Kerr extrinsic curvatures. The solution leading to the largest intrinsic spin,
relative to th... | [
{
"created": "Wed, 14 Mar 2012 21:52:17 GMT",
"version": "v1"
},
{
"created": "Thu, 14 Jun 2012 18:29:20 GMT",
"version": "v2"
}
] | 2012-06-15 | [
[
"Lousto",
"Carlos O.",
"",
"RIT"
],
[
"Nakano",
"Hiroyuki",
"",
"RIT"
],
[
"Zlochower",
"Yosef",
"",
"RIT"
],
[
"Mundim",
"Bruno C.",
"",
"RIT"
],
[
"Campanelli",
"Manuela",
"",
"RIT"
]
] | We study conformally-flat initial data for an arbitrary number of spinning black holes with exact analytic solutions to the momentum constraints constructed from a linear combination of the classical Bowen-York and conformal Kerr extrinsic curvatures. The solution leading to the largest intrinsic spin, relative to the ... |
2406.14603 | Marc Schneider | Francesco Del Porro, Stefano Liberati, Marc Schneider | Tunneling method for Hawking quanta in analogue gravity | 20 pages, 12 figures -- submitted to the special issue of Comptes
Rendus Physique in memory of Renaud Parentani | null | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Analogue Hawking radiation from acoustic horizons is now a well-established
phenomenon, both theoretically and experimentally. Its persistence, despite the
modified dispersion relations characterising analogue models, has been crucial
in advancing our understanding of the robustness of this phenomenon against
ultravi... | [
{
"created": "Thu, 20 Jun 2024 18:00:00 GMT",
"version": "v1"
}
] | 2024-06-24 | [
[
"Del Porro",
"Francesco",
""
],
[
"Liberati",
"Stefano",
""
],
[
"Schneider",
"Marc",
""
]
] | Analogue Hawking radiation from acoustic horizons is now a well-established phenomenon, both theoretically and experimentally. Its persistence, despite the modified dispersion relations characterising analogue models, has been crucial in advancing our understanding of the robustness of this phenomenon against ultraviol... |
gr-qc/9805072 | Jerome Martin | Jerome Martin and Dominik J. Schwarz | Amplitude of superhorizon cosmological perturbations | Contributions to the XXXIIIrd Rencontres de Moriond, Fundamental
Parameters in Cosmology, 5 pages, Latex | null | null | null | gr-qc astro-ph | null | We study the influence of reheating on super-horizon density perturbations
and gravitational waves. We correct wrong claims [L. P. Grishchuk Phys. Rev. D
50, 7154 (1994) and gr-qc/9801011] about the joining of perturbations at
cosmological transitions and about the quantization of cosmological
perturbations.
| [
{
"created": "Tue, 19 May 1998 09:15:09 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Martin",
"Jerome",
""
],
[
"Schwarz",
"Dominik J.",
""
]
] | We study the influence of reheating on super-horizon density perturbations and gravitational waves. We correct wrong claims [L. P. Grishchuk Phys. Rev. D 50, 7154 (1994) and gr-qc/9801011] about the joining of perturbations at cosmological transitions and about the quantization of cosmological perturbations. |
gr-qc/0403081 | Luca Lusanna | L.Lusanna (INFN, Firenze) and M.Pauri (Parma Univ.) | The Physical Role of Gravitational and Gauge Degrees of Freedom in
General Relativity - I: Dynamical Synchronization and Generalized Inertial
Effects | 45 pages, Revtex4, some refinements added | Gen.Rel.Grav.38:187-227,2006 | 10.1007/s10714-005-0217-6 | null | gr-qc | null | This is the first of a couple of papers in which, by exploiting the
capabilities of the Hamiltonian approach to general relativity, we get a number
of technical achievements that are instrumental both for a disclosure of
\emph{new} results concerning specific issues, and for new insights about
\emph{old} foundational... | [
{
"created": "Thu, 18 Mar 2004 10:29:25 GMT",
"version": "v1"
},
{
"created": "Thu, 1 Jul 2004 15:49:55 GMT",
"version": "v2"
}
] | 2014-11-17 | [
[
"Lusanna",
"L.",
"",
"INFN, Firenze"
],
[
"Pauri",
"M.",
"",
"Parma Univ."
]
] | This is the first of a couple of papers in which, by exploiting the capabilities of the Hamiltonian approach to general relativity, we get a number of technical achievements that are instrumental both for a disclosure of \emph{new} results concerning specific issues, and for new insights about \emph{old} foundational p... |
gr-qc/0012103 | Valdir B. Bezerra | J. Spinelly (UFPb), E. R. Bezerra de Mello (UFPb) and V. B.
Bezerra(UFPb) | Relativistic Quantum Scattering on a Cone | 22 pages, LATEX file | null | 10.1088/0264-9381/18/8/311 | null | gr-qc | null | We study the relativistic quantum mechanical scattering of a bosonic particle
by an infinite straight cosmic string, considering the non-minimal coupling
between the bosonic field and the scalar curvature. In this case, an effective
two-dimensional delta-function interaction takes place besides the usual
topological ... | [
{
"created": "Thu, 28 Dec 2000 12:58:15 GMT",
"version": "v1"
}
] | 2009-10-31 | [
[
"Spinelly",
"J.",
"",
"UFPb"
],
[
"de Mello",
"E. R. Bezerra",
"",
"UFPb"
],
[
"Bezerra",
"V. B.",
"",
"UFPb"
]
] | We study the relativistic quantum mechanical scattering of a bosonic particle by an infinite straight cosmic string, considering the non-minimal coupling between the bosonic field and the scalar curvature. In this case, an effective two-dimensional delta-function interaction takes place besides the usual topological sc... |
gr-qc/0207033 | R. Michael Jones | R. Michael Jones | The criteria for a solution of the field equations to be a classical
limit of a quantum cosmology | 4 pages, submitted to Astronomische Nachrichten | null | null | null | gr-qc | null | If the gravitational field is quantized, then a solution of Einstein's field
equations is a valid cosmological model only if it corresponds to a classical
limit of a quantum cosmology. To determine which solutions are valid requires
looking at quantum cosmology in a particular way. Because we infer the geometry
by me... | [
{
"created": "Fri, 5 Jul 2002 19:29:11 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Jones",
"R. Michael",
""
]
] | If the gravitational field is quantized, then a solution of Einstein's field equations is a valid cosmological model only if it corresponds to a classical limit of a quantum cosmology. To determine which solutions are valid requires looking at quantum cosmology in a particular way. Because we infer the geometry by meas... |
2209.04025 | R. E. Kastner | A. Schlatter and R. E. Kastner | Gravity from Transactions: Fulfilling the Entropic Gravity Program | Final accepted version, Journal of Physics Communications (2023) | null | 10.1088/2399-6528/acd6d7 | null | gr-qc physics.hist-ph quant-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | This is a review of new developments in entropic gravity in light of the
Relativistic Transactional Interpretation (RTI). A transactional approach to
spacetime events can give rise in a natural way to entropic gravity (in the way
originally proposed by Erik Verlinde) while also overcoming extant objections
to that re... | [
{
"created": "Thu, 8 Sep 2022 20:32:26 GMT",
"version": "v1"
},
{
"created": "Wed, 14 Jun 2023 00:52:32 GMT",
"version": "v2"
}
] | 2023-06-16 | [
[
"Schlatter",
"A.",
""
],
[
"Kastner",
"R. E.",
""
]
] | This is a review of new developments in entropic gravity in light of the Relativistic Transactional Interpretation (RTI). A transactional approach to spacetime events can give rise in a natural way to entropic gravity (in the way originally proposed by Erik Verlinde) while also overcoming extant objections to that rese... |
1007.5387 | Ryan Hamerly | Ryan Hamerly and Yanbei Chen | Event Horizon Deformations in Extreme Mass-Ratio Black Hole Mergers | 23 pages, 14 figures | Phys. Rev. D 84, 124015 (2011) | 10.1103/PhysRevD.84.124015 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the geometry of the event horizon of a spacetime in which a small
compact object plunges into a large Schwarzschild black hole. We first use the
Regge-Wheeler and Zerilli formalisms to calculate the metric perturbations
induced by this small compact object, then find the new event horizon by
propagating null... | [
{
"created": "Fri, 30 Jul 2010 08:17:41 GMT",
"version": "v1"
},
{
"created": "Thu, 8 Dec 2011 09:00:38 GMT",
"version": "v2"
}
] | 2011-12-09 | [
[
"Hamerly",
"Ryan",
""
],
[
"Chen",
"Yanbei",
""
]
] | We study the geometry of the event horizon of a spacetime in which a small compact object plunges into a large Schwarzschild black hole. We first use the Regge-Wheeler and Zerilli formalisms to calculate the metric perturbations induced by this small compact object, then find the new event horizon by propagating null g... |
1804.07872 | Kiyoshi Shiraishi | Kiyoshi Shiraishi and Takuya Maki | Quantum fluctuation of stress tensor and black holes in three dimensions | 18 pages, 12 figures | Physical Review D49, No. 10, pp. 5286-5294, 15 May 1994 | 10.1103/PhysRevD.49.5286 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The quantum stress tensor near a three-dimensional black hole is studied for
a conformally coupled scalar field. The back reaction to the metric is also
investigated.
| [
{
"created": "Sat, 21 Apr 2018 00:50:36 GMT",
"version": "v1"
}
] | 2018-05-02 | [
[
"Shiraishi",
"Kiyoshi",
""
],
[
"Maki",
"Takuya",
""
]
] | The quantum stress tensor near a three-dimensional black hole is studied for a conformally coupled scalar field. The back reaction to the metric is also investigated. |
gr-qc/9410045 | Sardanashvily Gennadi | G.Sardanashvily | Gauge Gravitation Theory. What is the Geometry of the World? | 16 pp., compuscript LaTeX, report TP\94\213 | null | null | null | gr-qc hep-th | null | When joined the unified gauge picture of fundamental interactions, the
gravitation theory leads to geometry of a space-time which is far from
simplicity of pseudo-Riemannian geometry of Einstein's General Relativity. This
is geometry of the affine-metric composite dislocated manifolds. The goal is
modification of the... | [
{
"created": "Sun, 30 Oct 1994 02:49:47 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Sardanashvily",
"G.",
""
]
] | When joined the unified gauge picture of fundamental interactions, the gravitation theory leads to geometry of a space-time which is far from simplicity of pseudo-Riemannian geometry of Einstein's General Relativity. This is geometry of the affine-metric composite dislocated manifolds. The goal is modification of the f... |
1609.07992 | Christine Farrugia | Christine R. Farrugia and Joseph Sultana | Thermodynamic Geodesics of a Reissner Nordstr\"om Black Hole | 15 pages, 4 figures | null | 10.1007/s10714-016-2169-4 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Starting from a Geometrothermodynamics metric for the space of thermodynamic
equilibrium states in the mass representation, we use numerical techniques to
analyse the thermodynamic geodesics of a supermassive Reissner Nordstr\"{o}m
black hole in isolation. Appropriate constraints are obtained by taking into
account t... | [
{
"created": "Fri, 23 Sep 2016 11:00:30 GMT",
"version": "v1"
},
{
"created": "Thu, 13 Oct 2016 11:57:17 GMT",
"version": "v2"
}
] | 2016-12-12 | [
[
"Farrugia",
"Christine R.",
""
],
[
"Sultana",
"Joseph",
""
]
] | Starting from a Geometrothermodynamics metric for the space of thermodynamic equilibrium states in the mass representation, we use numerical techniques to analyse the thermodynamic geodesics of a supermassive Reissner Nordstr\"{o}m black hole in isolation. Appropriate constraints are obtained by taking into account the... |
1307.5098 | David Garfinkle | Lydia Bieri and David Garfinkle | An electromagnetic analog of gravitational wave memory | null | null | 10.1088/0264-9381/30/19/195009 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present an electromagnetic analog of gravitational wave memory. That is,
we consider what change has occurred to a detector of electromagnetic radiation
after the wave has passed. Rather than a distortion in the detector, as occurs
in the gravitational wave case, we find a residual velocity (a "kick") to the
charg... | [
{
"created": "Thu, 18 Jul 2013 23:21:22 GMT",
"version": "v1"
},
{
"created": "Tue, 10 Sep 2013 21:06:16 GMT",
"version": "v2"
}
] | 2015-06-16 | [
[
"Bieri",
"Lydia",
""
],
[
"Garfinkle",
"David",
""
]
] | We present an electromagnetic analog of gravitational wave memory. That is, we consider what change has occurred to a detector of electromagnetic radiation after the wave has passed. Rather than a distortion in the detector, as occurs in the gravitational wave case, we find a residual velocity (a "kick") to the charges... |
gr-qc/0212011 | Tae Hoon Lee | T. H. Lee, B. H. J. McKellar | Neutrino Clustering in the Galaxy with a Global Monopole | 8 pages, Revtex4 | Phys.Rev. D67 (2003) 103007 | 10.1103/PhysRevD.67.103007 | null | gr-qc | null | In spherically symmetric, static spacetime, we show that only j=1/2 fermions
can satisfy both Einstein's field equation and Dirac's equation. It is also
shown that neutrinos are able to have effective masses and cluster in the
galactic halo when they are coupled to a global monopole situated at the
galactic core. Ast... | [
{
"created": "Tue, 3 Dec 2002 02:57:00 GMT",
"version": "v1"
}
] | 2009-11-07 | [
[
"Lee",
"T. H.",
""
],
[
"McKellar",
"B. H. J.",
""
]
] | In spherically symmetric, static spacetime, we show that only j=1/2 fermions can satisfy both Einstein's field equation and Dirac's equation. It is also shown that neutrinos are able to have effective masses and cluster in the galactic halo when they are coupled to a global monopole situated at the galactic core. Astro... |
2109.14183 | Dah-Wei Chiou | Bo-Hung Chen and Dah-Wei Chiou | Response of the Unruh-DeWitt detector in a gravitational wave background | 32 pages, 2 figures; contains some of the same material in
arXiv:1605.06656; v2: various minor improvements made, version to appear in
PRD | Phys. Rev. D 105, 024053 (2022) | 10.1103/PhysRevD.105.024053 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Applying the techniques of light-front quantization to quantize a scalar
field in a monochromatic gravitational wave background, we manage to
investigate the response of the Unruh-DeWitt detector coupled to a scalar field
in the presence of a gravitational wave for the two cases moving along a
free-falling trajectory... | [
{
"created": "Wed, 29 Sep 2021 03:58:10 GMT",
"version": "v1"
},
{
"created": "Sat, 22 Jan 2022 06:14:27 GMT",
"version": "v2"
}
] | 2022-02-03 | [
[
"Chen",
"Bo-Hung",
""
],
[
"Chiou",
"Dah-Wei",
""
]
] | Applying the techniques of light-front quantization to quantize a scalar field in a monochromatic gravitational wave background, we manage to investigate the response of the Unruh-DeWitt detector coupled to a scalar field in the presence of a gravitational wave for the two cases moving along a free-falling trajectory a... |
1111.5819 | Sarah Gossan | S. Gossan, J. Veitch, B. S. Sathyaprakash | Bayesian model selection for testing the no-hair theorem with black hole
ringdowns | 9 pages, 5 figures | null | 10.1103/PhysRevD.85.124056 | null | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | General relativity predicts that a black hole that results from the merger of
two compact stars (either black holes or neutron stars) is initially highly
deformed but soon settles down to a quiescent state by emitting a superposition
of quasi-normal modes (QNMs). The QNMs are damped sinusoids with characteristic
freq... | [
{
"created": "Thu, 24 Nov 2011 17:24:54 GMT",
"version": "v1"
},
{
"created": "Sat, 26 May 2012 13:37:13 GMT",
"version": "v2"
}
] | 2015-03-19 | [
[
"Gossan",
"S.",
""
],
[
"Veitch",
"J.",
""
],
[
"Sathyaprakash",
"B. S.",
""
]
] | General relativity predicts that a black hole that results from the merger of two compact stars (either black holes or neutron stars) is initially highly deformed but soon settles down to a quiescent state by emitting a superposition of quasi-normal modes (QNMs). The QNMs are damped sinusoids with characteristic freque... |
1504.02645 | Tiberiu Harko | Shi-Dong Liang, Tiberiu Harko | Superconducting dark energy | 18 pages, 16 figures, accepted for publication in PRD | Phys. Rev. D 91, 085042, 2015 | 10.1103/PhysRevD.91.085042 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Based on the analogy with superconductor physics we consider a
scalar-vector-tensor gravitational model, in which the dark energy action is
described by a gauge invariant electromagnetic type functional. By assuming
that the ground state of the dark energy is in a form of a condensate with the
U(1) symmetry spontaneo... | [
{
"created": "Fri, 10 Apr 2015 11:56:46 GMT",
"version": "v1"
}
] | 2015-06-24 | [
[
"Liang",
"Shi-Dong",
""
],
[
"Harko",
"Tiberiu",
""
]
] | Based on the analogy with superconductor physics we consider a scalar-vector-tensor gravitational model, in which the dark energy action is described by a gauge invariant electromagnetic type functional. By assuming that the ground state of the dark energy is in a form of a condensate with the U(1) symmetry spontaneous... |
0903.4776 | Leonardo Fernandez-Jambrina | L. Fern\'andez-Jambrina | Past singularities in phantom theories | 4 pp. Uses eas.cls. Spanish Relativity Meeting ERE 2007: Relativistic
Astrophysics and Cosmology. Eds: A. Oscoz, E. Mediavilla, M. Serra-Ricart.
EAS Publications Series, Volume 30, EDP Sciences, Les Ulis, 131-136 (2008) | Spanish Relativity Meeting ERE 2007: Relativistic Astrophysics and
Cosmology. Eds: A. Oscoz, E. Mediavilla, M. Serra-Ricart. EAS Publications
Series, Volume 30, EDP Sciences, Les Ulis, 131-136 (2008) | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | FLRW models filled with just dark energy are shown to have a finite past,
since causal geodesics cannot be extended beyond a certain proper time. It is
shown that curvature measured along causal geodesics becomes infinity on
travelling to the past, though curvature scalars tend to zero. Furthermore the
time measured ... | [
{
"created": "Fri, 27 Mar 2009 11:41:31 GMT",
"version": "v1"
}
] | 2009-03-31 | [
[
"Fernández-Jambrina",
"L.",
""
]
] | FLRW models filled with just dark energy are shown to have a finite past, since causal geodesics cannot be extended beyond a certain proper time. It is shown that curvature measured along causal geodesics becomes infinity on travelling to the past, though curvature scalars tend to zero. Furthermore the time measured by... |
1302.2285 | Ka\'ca Bradonji\'c | John Stachel and Ka\'ca Bradonji\'c | Quantum Gravity: Meaning and Measurement | 24 pages; Minor content additions; fixed typos and references. The
published article can be found at
http://dx.doi.org/10.1016/j.shpsb.2013.12.002 | null | 10.1016/j.shpsb.2013.12.002 | null | gr-qc physics.hist-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A discussion of the meaning of a physical concept cannot be separated from
discussion of the conditions for its ideal measurement. We assert that
quantization is no more than the invocation of the quantum of action in the
explanation of some process or phenomenon, and does not imply an assertion of
the fundamental na... | [
{
"created": "Sun, 10 Feb 2013 01:16:17 GMT",
"version": "v1"
},
{
"created": "Sun, 12 Jan 2014 22:44:24 GMT",
"version": "v2"
}
] | 2014-01-14 | [
[
"Stachel",
"John",
""
],
[
"Bradonjić",
"Kaća",
""
]
] | A discussion of the meaning of a physical concept cannot be separated from discussion of the conditions for its ideal measurement. We assert that quantization is no more than the invocation of the quantum of action in the explanation of some process or phenomenon, and does not imply an assertion of the fundamental natu... |
2210.15367 | Andrea Orizzonte | Andrea Orizzonte | Barbero--Immirzi--Holst Lagrangian with Spacetime Barbero--Immirzi
Connections | 43 pages, 0 figures | null | null | null | gr-qc math-ph math.DG math.MP | http://creativecommons.org/licenses/by-nc-nd/4.0/ | We carry out the complete variational analysis of the Barbero--Immirzi--Holst
Lagrangian, which is the Holst Lagrangian expressed in terms of the triad of
fields $(\theta, A, \kappa)$, where $\theta$ is the solder form/spin frame, $A$
is the spacetime Barbero--Immirzi connection, and $\kappa$ is the extrinsic
spaceti... | [
{
"created": "Thu, 27 Oct 2022 12:25:25 GMT",
"version": "v1"
}
] | 2022-10-28 | [
[
"Orizzonte",
"Andrea",
""
]
] | We carry out the complete variational analysis of the Barbero--Immirzi--Holst Lagrangian, which is the Holst Lagrangian expressed in terms of the triad of fields $(\theta, A, \kappa)$, where $\theta$ is the solder form/spin frame, $A$ is the spacetime Barbero--Immirzi connection, and $\kappa$ is the extrinsic spacetime... |
gr-qc/0302085 | Roberto De Pietri | Juri Agresti (Firenze Univ.), Roberto De Pietri (Parma Univ. & INFN),
Luca Lusanna (INFN, Firenze), Luca Martucci (Milano Univ. & INFN) | Background-Independent Gravitational Waves | RevTex4, 4 pages, 4 figures | null | null | null | gr-qc astro-ph hep-th | null | A Hamiltonian linearization of the rest-frame instant form of tetrad gravity
(gr-qc/0302084), where the Hamiltonian is the weak ADM energy ${\hat E}_{ADM}$,
in a completely fixed (non harmonic) 3-orthogonal Hamiltonian gauge is defined.
For the first time this allows to find an explicit solution of all the
Hamiltonia... | [
{
"created": "Thu, 20 Feb 2003 12:02:39 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Agresti",
"Juri",
"",
"Firenze Univ."
],
[
"De Pietri",
"Roberto",
"",
"Parma Univ. & INFN"
],
[
"Lusanna",
"Luca",
"",
"INFN, Firenze"
],
[
"Martucci",
"Luca",
"",
"Milano Univ. & INFN"
]
] | A Hamiltonian linearization of the rest-frame instant form of tetrad gravity (gr-qc/0302084), where the Hamiltonian is the weak ADM energy ${\hat E}_{ADM}$, in a completely fixed (non harmonic) 3-orthogonal Hamiltonian gauge is defined. For the first time this allows to find an explicit solution of all the Hamiltonian ... |
2212.03285 | Arina Shtennikova | S. Mironov and A. Shtennikova | Stable cosmological solutions in Horndeski theory | null | null | 10.1088/1475-7516/2023/06/037 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | It is known that the construction of a completely stable solution in
Horndeski theory is restricted very strongly by the so-called no-go theorem.
Previously, various techniques have been used to avoid the conditions of the
theorem. In this paper a new way of constructing stable solutions are shown in
the general Horn... | [
{
"created": "Tue, 6 Dec 2022 19:38:07 GMT",
"version": "v1"
},
{
"created": "Tue, 17 Jan 2023 14:34:15 GMT",
"version": "v2"
},
{
"created": "Wed, 8 Mar 2023 15:36:05 GMT",
"version": "v3"
}
] | 2023-06-23 | [
[
"Mironov",
"S.",
""
],
[
"Shtennikova",
"A.",
""
]
] | It is known that the construction of a completely stable solution in Horndeski theory is restricted very strongly by the so-called no-go theorem. Previously, various techniques have been used to avoid the conditions of the theorem. In this paper a new way of constructing stable solutions are shown in the general Hornde... |
1912.03976 | Nils Andersson | N. Andersson, S. Wells and G.L. Comer | A variational approach to relativistic superfluid vortex elasticity | 29 pages, RevTeX preprint format, 1 figure | null | 10.1088/1361-6382/ab79d7 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | It is well known that a superfluid rotates by forming an array of quantized
vortices. A relativistic formulation for superfluid vortex dynamics is required
for a range of problems in astrophysics and cosmology, from neutron star
interiors and radio pulsar glitches to possible dark matter condensates on
galactic scale... | [
{
"created": "Mon, 9 Dec 2019 11:34:00 GMT",
"version": "v1"
}
] | 2020-06-17 | [
[
"Andersson",
"N.",
""
],
[
"Wells",
"S.",
""
],
[
"Comer",
"G. L.",
""
]
] | It is well known that a superfluid rotates by forming an array of quantized vortices. A relativistic formulation for superfluid vortex dynamics is required for a range of problems in astrophysics and cosmology, from neutron star interiors and radio pulsar glitches to possible dark matter condensates on galactic scales.... |
1905.13155 | Zack Carson | Zack Carson, Kent Yagi | Multi-band gravitational wave tests of general relativity | 6 pages, 4 figures; IMR consistency test updates and additional
citations; Updated DECIGO noise curves; Small fixes and style change; Fixed
small issue with Lisa/TianQin bounds on beta | null | 10.1088/1361-6382/ab5c9a | null | gr-qc astro-ph.HE hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The violent collisions of black holes provide for excellent test-beds of
Einstein's general relativity in the strong/dynamical gravity regime. We here
demonstrate the resolving power one can gain upon the use of multi-band
observations of gravitational waves from both ground- and space-based
detectors. We find signif... | [
{
"created": "Thu, 30 May 2019 16:19:48 GMT",
"version": "v1"
},
{
"created": "Tue, 4 Jun 2019 19:09:36 GMT",
"version": "v2"
},
{
"created": "Tue, 8 Oct 2019 22:27:09 GMT",
"version": "v3"
},
{
"created": "Tue, 17 Dec 2019 22:27:54 GMT",
"version": "v4"
},
{
"cre... | 2020-08-25 | [
[
"Carson",
"Zack",
""
],
[
"Yagi",
"Kent",
""
]
] | The violent collisions of black holes provide for excellent test-beds of Einstein's general relativity in the strong/dynamical gravity regime. We here demonstrate the resolving power one can gain upon the use of multi-band observations of gravitational waves from both ground- and space-based detectors. We find signific... |
1101.3765 | Manuel Tiglio | Scott E. Field, Chad R. Galley, Frank Herrmann, Jan S. Hesthaven, Evan
Ochsner, Manuel Tiglio | Reduced basis catalogs for gravitational wave templates | Minor changes in some of the phrasing to match the version as
published in PRL | Phys.Rev.Lett.106:221102,2011 | 10.1103/PhysRevLett.106.221102 | null | gr-qc astro-ph.IM physics.data-an | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We introduce a reduced basis approach as a new paradigm for modeling,
representing and searching for gravitational waves. We construct waveform
catalogs for non-spinning compact binary coalescences, and we find that for
accuracies of 99% and 99.999% the method generates a factor of about $10-10^5$
fewer templates tha... | [
{
"created": "Wed, 19 Jan 2011 20:09:21 GMT",
"version": "v1"
},
{
"created": "Mon, 13 Jun 2011 19:57:28 GMT",
"version": "v2"
}
] | 2015-03-17 | [
[
"Field",
"Scott E.",
""
],
[
"Galley",
"Chad R.",
""
],
[
"Herrmann",
"Frank",
""
],
[
"Hesthaven",
"Jan S.",
""
],
[
"Ochsner",
"Evan",
""
],
[
"Tiglio",
"Manuel",
""
]
] | We introduce a reduced basis approach as a new paradigm for modeling, representing and searching for gravitational waves. We construct waveform catalogs for non-spinning compact binary coalescences, and we find that for accuracies of 99% and 99.999% the method generates a factor of about $10-10^5$ fewer templates than ... |
gr-qc/9606051 | Nikolai V. Mitskievich | Nikolai V. Mitskievich (Physics Department, University of Guadalajara,
Guadalajara, Mexico) | Relativistic Physics in Arbitrary Reference Frames | 137 pages, LaTeX type, amssym.def, amssym | null | null | null | gr-qc | null | In this paper we give a review of the most general approach to description of
reference frames, the monad formalism. This approach is explicitly general
covariant at each step, permitting to use abstract representation of tensor
quantities; it is applicable also to special relativity when non-inertial
effects are con... | [
{
"created": "Mon, 17 Jun 1996 18:20:36 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Mitskievich",
"Nikolai V.",
"",
"Physics Department, University of Guadalajara,\n Guadalajara, Mexico"
]
] | In this paper we give a review of the most general approach to description of reference frames, the monad formalism. This approach is explicitly general covariant at each step, permitting to use abstract representation of tensor quantities; it is applicable also to special relativity when non-inertial effects are consi... |
1907.04717 | David Keitel | David Keitel, Graham Woan, Matthew Pitkin, Courtney Schumacher,
Brynley Pearlstone, Keith Riles, Andrew G. Lyne, Jim Palfreyman, Benjamin
Stappers, Patrick Weltevrede | First search for long-duration transient gravitational waves after
glitches in the Vela and Crab pulsars | 10 pages, 3 figures (incl. appendices). Updated to match version
accepted by PRD and fixed a few references | Phys. Rev. D 100, 064058 (2019) | 10.1103/PhysRevD.100.064058 | LIGO-P1900183 | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Gravitational waves (GWs) can offer a novel window into the structure and
dynamics of neutron stars. Here we present the first search for long-duration
quasi-monochromatic GW transients triggered by pulsar glitches. We focus on two
glitches observed in radio timing of the Vela pulsar (PSR J0835-4510) on 12
December 2... | [
{
"created": "Wed, 10 Jul 2019 13:38:42 GMT",
"version": "v1"
},
{
"created": "Tue, 10 Sep 2019 15:05:47 GMT",
"version": "v2"
},
{
"created": "Wed, 18 Sep 2019 13:38:32 GMT",
"version": "v3"
}
] | 2019-10-02 | [
[
"Keitel",
"David",
""
],
[
"Woan",
"Graham",
""
],
[
"Pitkin",
"Matthew",
""
],
[
"Schumacher",
"Courtney",
""
],
[
"Pearlstone",
"Brynley",
""
],
[
"Riles",
"Keith",
""
],
[
"Lyne",
"Andrew G.",
""
],
... | Gravitational waves (GWs) can offer a novel window into the structure and dynamics of neutron stars. Here we present the first search for long-duration quasi-monochromatic GW transients triggered by pulsar glitches. We focus on two glitches observed in radio timing of the Vela pulsar (PSR J0835-4510) on 12 December 201... |
1605.03212 | Mariam Bouhmadi-Lopez | Mariam Bouhmadi-L\'opez, K. Sravan Kumar, Jo\~ao Marto, Jo\~ao Morais
and Alexander Zhuk | $K$-essence model from the mechanical approach point of view: coupled
scalar field and the late cosmic acceleration | 26 pages, no figures. Conclusions extended and references updated.
Version accepted in JCAP | JCAP 07 (2016) 050 | 10.1088/1475-7516/2016/07/050 | null | gr-qc astro-ph.CO hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper, we consider the Universe at the late stage of its evolution
and deep inside the cell of uniformity. At these scales, we can consider the
Universe to be filled with dust-like matter in the form of discretely
distributed galaxies, a $K$-essence scalar field, playing the role of dark
energy, and radiation... | [
{
"created": "Tue, 10 May 2016 20:56:21 GMT",
"version": "v1"
},
{
"created": "Tue, 19 Jul 2016 13:32:03 GMT",
"version": "v2"
}
] | 2016-08-02 | [
[
"Bouhmadi-López",
"Mariam",
""
],
[
"Kumar",
"K. Sravan",
""
],
[
"Marto",
"João",
""
],
[
"Morais",
"João",
""
],
[
"Zhuk",
"Alexander",
""
]
] | In this paper, we consider the Universe at the late stage of its evolution and deep inside the cell of uniformity. At these scales, we can consider the Universe to be filled with dust-like matter in the form of discretely distributed galaxies, a $K$-essence scalar field, playing the role of dark energy, and radiation a... |
gr-qc/0606111 | Leszek Soko{\l}owski | Leszek M. Sokolowski and Andrzej Staruszkiewicz | On the issue of gravitons | 14 pages. One phrase added | Class.Quant.Grav. 23 (2006) 5907-5918 | 10.1088/0264-9381/23/20/012 | null | gr-qc | null | We investigate the problem of whether one can anticipate any features of the
graviton without a detailed knowledge of a full quantum gravity. Assuming that
in linearized gravity the graviton is in a sense similar to the photon, we
derive a curious large number coincidence between the number of gravitons
emitted by a ... | [
{
"created": "Mon, 26 Jun 2006 11:37:38 GMT",
"version": "v1"
},
{
"created": "Fri, 6 Oct 2006 11:46:15 GMT",
"version": "v2"
}
] | 2009-11-11 | [
[
"Sokolowski",
"Leszek M.",
""
],
[
"Staruszkiewicz",
"Andrzej",
""
]
] | We investigate the problem of whether one can anticipate any features of the graviton without a detailed knowledge of a full quantum gravity. Assuming that in linearized gravity the graviton is in a sense similar to the photon, we derive a curious large number coincidence between the number of gravitons emitted by a so... |
2003.06829 | Reggie Pantig | Reggie C. Pantig, Emmanuel T. Rodulfo | Rotating dirty black hole and its shadow | 14 pages, 23 figures; corrected some typos; added some references;
accepted for publication in Chinese Journal of Physics | Chin. J. Phys. (2020) | 10.1016/j.cjph.2020.08.001 | null | gr-qc | http://creativecommons.org/licenses/by-nc-sa/4.0/ | In this paper, we examine the effect of dark matter to a Kerr black hole of
mass $m$. The metric is derived using the Newman-Janis algorithm, where the
seed metric originates from the Schwarzschild black hole surrounded by a
spherical shell of dark matter with mass $M$ and thickness $\Delta r_{s}$. The
seed metric is... | [
{
"created": "Sun, 15 Mar 2020 13:33:13 GMT",
"version": "v1"
},
{
"created": "Fri, 20 Mar 2020 02:38:45 GMT",
"version": "v2"
},
{
"created": "Sat, 8 Aug 2020 01:45:51 GMT",
"version": "v3"
}
] | 2020-08-11 | [
[
"Pantig",
"Reggie C.",
""
],
[
"Rodulfo",
"Emmanuel T.",
""
]
] | In this paper, we examine the effect of dark matter to a Kerr black hole of mass $m$. The metric is derived using the Newman-Janis algorithm, where the seed metric originates from the Schwarzschild black hole surrounded by a spherical shell of dark matter with mass $M$ and thickness $\Delta r_{s}$. The seed metric is a... |
gr-qc/9506091 | null | Franco Buccella, Giampiero Esposito, Gennaro Miele | Spontaneously Broken SU(5) Symmetries and One-Loop Effects in the Early
Universe | 19 pages, plain-tex, published in Classical and Quantum Gravity,
volume 9, pages 1499-1509, year 1992 | Class.Quant.Grav.9:1499-1509,1992 | 10.1088/0264-9381/9/6/008 | DSF 91/19 | gr-qc | null | This paper studies one-loop effective potential and
spontaneous-symmetry-breaking pattern for SU(5) gauge theory in de Sitter
space-time. Curvature effects modify the flat-space effective potential by
means of a very complicated special function previously derived in the
literature. An algebraic technique already dev... | [
{
"created": "Sat, 1 Jul 1995 20:25:35 GMT",
"version": "v1"
}
] | 2010-04-06 | [
[
"Buccella",
"Franco",
""
],
[
"Esposito",
"Giampiero",
""
],
[
"Miele",
"Gennaro",
""
]
] | This paper studies one-loop effective potential and spontaneous-symmetry-breaking pattern for SU(5) gauge theory in de Sitter space-time. Curvature effects modify the flat-space effective potential by means of a very complicated special function previously derived in the literature. An algebraic technique already devel... |
2112.02121 | David Brown | Isaac Raj Waldstein and J. David Brown | Generalized geodesic deviation in de Sitter spacetime | 9 pages, 6 figures. Final version published in Classical and Quantum
Gravity | Classical and Quantum Gravity, Volume 39, Number 11, 2022 | 10.1088/1361-6382/ac6a9e | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The geodesic deviation equation (GDE) describes the tendency of objects to
accelerate towards or away from each other due to spacetime curvature. The GDE
assumes that nearby geodesics have a small rate of separation, which is
formally treated as the same order in smallness as the separation itself. This
assumption is... | [
{
"created": "Fri, 3 Dec 2021 19:06:31 GMT",
"version": "v1"
},
{
"created": "Sun, 26 Jun 2022 20:11:15 GMT",
"version": "v2"
}
] | 2022-06-28 | [
[
"Waldstein",
"Isaac Raj",
""
],
[
"Brown",
"J. David",
""
]
] | The geodesic deviation equation (GDE) describes the tendency of objects to accelerate towards or away from each other due to spacetime curvature. The GDE assumes that nearby geodesics have a small rate of separation, which is formally treated as the same order in smallness as the separation itself. This assumption is d... |
1506.06682 | Ariel Edery | Ariel Edery and Benjamin Constantineau | Formation of a condensate during charged collapse | 21 pages, 10 figures,to appear in CQG. arXiv admin note: text overlap
with arXiv:1203.2279 v2: matches published version in Class. Quantum Grav | Class. Quantum Grav. 32 (2015) 165007 | 10.1088/0264-9381/32/16/165007 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We observe a condensate forming in the interior of a black hole (BH) during
numerical simulations of gravitational collapse of a massless charged (complex)
scalar field. The magnitude of the scalar field in the interior tends to a
non-zero constant; spontaneous breaking of gauge symmetry occurs and a
condensate forms... | [
{
"created": "Mon, 22 Jun 2015 17:09:59 GMT",
"version": "v1"
},
{
"created": "Thu, 9 Jul 2015 16:17:15 GMT",
"version": "v2"
}
] | 2015-07-28 | [
[
"Edery",
"Ariel",
""
],
[
"Constantineau",
"Benjamin",
""
]
] | We observe a condensate forming in the interior of a black hole (BH) during numerical simulations of gravitational collapse of a massless charged (complex) scalar field. The magnitude of the scalar field in the interior tends to a non-zero constant; spontaneous breaking of gauge symmetry occurs and a condensate forms. ... |
2408.00452 | Shad Ali | Shad Ali, Tong Liu | The CR Volume for Black Holes and the Corresponding Entropy Variation: A
Review | 19 pages, 7 figures, Accepted in Journal of New Astronomy Reviews | New Astro. Rev., 101709, 99(2024) | 10.1016/j.newar.2024.101709 | null | gr-qc hep-th | http://creativecommons.org/licenses/by/4.0/ | This paper reviews the work done on black hole interior volume, entropy, and
evaporation. An insight into the basics for understanding the interior volume
is presented. A general analogy to investigate the interior volume of a black
hole, the associated quantum mode's entropy, and the evolution relation between
the i... | [
{
"created": "Thu, 1 Aug 2024 10:45:37 GMT",
"version": "v1"
}
] | 2024-08-08 | [
[
"Ali",
"Shad",
""
],
[
"Liu",
"Tong",
""
]
] | This paper reviews the work done on black hole interior volume, entropy, and evaporation. An insight into the basics for understanding the interior volume is presented. A general analogy to investigate the interior volume of a black hole, the associated quantum mode's entropy, and the evolution relation between the int... |
2102.11130 | Martin Bojowald | Martin Bojowald | Non-covariance of "covariant polymerization" in models of loop quantum
gravity | 15 pages, v2: new extended example of a bijective canonical
transformation | Phys. Rev. D 103, 126025 (2021) | 10.1103/PhysRevD.103.126025 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | It is possible to implement a certain form of modified gravity inspired by
loop quantization through non-bijective canonical transformations. The
canonical nature might suggest that such modifications are guaranteed to
preserve general covariance. Here, however, we show that a dedicated space-time
analysis is still r... | [
{
"created": "Mon, 22 Feb 2021 15:58:08 GMT",
"version": "v1"
},
{
"created": "Tue, 29 Jun 2021 18:38:02 GMT",
"version": "v2"
}
] | 2021-07-07 | [
[
"Bojowald",
"Martin",
""
]
] | It is possible to implement a certain form of modified gravity inspired by loop quantization through non-bijective canonical transformations. The canonical nature might suggest that such modifications are guaranteed to preserve general covariance. Here, however, we show that a dedicated space-time analysis is still req... |
gr-qc/0103088 | Lorenzo Iorio | Lorenzo Iorio, Ignazio Ciufolini, Erricos C. Pavlis | Measuring the relativistic perigee advance with Satellite Laser Ranging | LaTex2e, 14 pages, no figures, 2 tables. To appear in Classical and
Quantum Gravity | Class.Quant.Grav. 19 (2002) 4301-4309 | 10.1088/0264-9381/19/16/306 | null | gr-qc astro-ph | null | One of the most famous classical tests of General Relativity is the
gravitoelectric secular advance of the pericenter of a test body in the
gravitational field of a central mass. In this paper we explore the possibility
of performing a measurement of the gravitoelectric pericenter advance in the
gravitational field o... | [
{
"created": "Fri, 23 Mar 2001 18:02:38 GMT",
"version": "v1"
},
{
"created": "Mon, 1 Jul 2002 15:23:34 GMT",
"version": "v10"
},
{
"created": "Mon, 26 Mar 2001 18:30:29 GMT",
"version": "v2"
},
{
"created": "Tue, 27 Mar 2001 23:00:22 GMT",
"version": "v3"
},
{
"c... | 2007-05-23 | [
[
"Iorio",
"Lorenzo",
""
],
[
"Ciufolini",
"Ignazio",
""
],
[
"Pavlis",
"Erricos C.",
""
]
] | One of the most famous classical tests of General Relativity is the gravitoelectric secular advance of the pericenter of a test body in the gravitational field of a central mass. In this paper we explore the possibility of performing a measurement of the gravitoelectric pericenter advance in the gravitational field of ... |
1206.2263 | Tae Hoon Lee | Joohan Lee, Tae Hoon Lee, and Phillial Oh | Conformally-coupled dark spinor and FRW universe | 4 pages, Revised argument in section III, results unchanged. To be
published in PRD | null | 10.1103/PhysRevD.86.107301 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study conformal coupling of dark spinor fields to gravity and calculate
the energy density and the pressure of the spinor in FRW spacetime. We consider
the renormalizable potential of the spinor field. In the cases where the field
is proportional to some power of the cosmic scale factor $a(t)$, we determine
the Hu... | [
{
"created": "Mon, 11 Jun 2012 15:40:17 GMT",
"version": "v1"
},
{
"created": "Wed, 5 Sep 2012 13:13:24 GMT",
"version": "v2"
},
{
"created": "Fri, 26 Oct 2012 04:42:51 GMT",
"version": "v3"
}
] | 2013-05-30 | [
[
"Lee",
"Joohan",
""
],
[
"Lee",
"Tae Hoon",
""
],
[
"Oh",
"Phillial",
""
]
] | We study conformal coupling of dark spinor fields to gravity and calculate the energy density and the pressure of the spinor in FRW spacetime. We consider the renormalizable potential of the spinor field. In the cases where the field is proportional to some power of the cosmic scale factor $a(t)$, we determine the Hubb... |
1309.2187 | Roger Francis Picken | J. E. Nelson and R. F. Picken | Theory of intersecting loops on a torus | 31 pages, 30 figures. Version 2 has an improved text for the
abstract. To appear in Adv. Theor. Math. Phys., Issue 18.3, May-June 2014.
arXiv admin note: text overlap with arXiv:1006.0921 | null | null | null | gr-qc hep-th math-ph math.MP math.QA | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We continue our investigation into intersections of closed paths on a torus,
to further our understanding of the commutator algebra of Wilson loop
observables in 2+1 quantum gravity, when the cosmological constant is negative.
We give a concise review of previous results, e.g. that signed area phases
relate observabl... | [
{
"created": "Mon, 9 Sep 2013 15:14:46 GMT",
"version": "v1"
},
{
"created": "Thu, 12 Sep 2013 16:46:03 GMT",
"version": "v2"
},
{
"created": "Thu, 10 Apr 2014 14:58:50 GMT",
"version": "v3"
}
] | 2014-04-11 | [
[
"Nelson",
"J. E.",
""
],
[
"Picken",
"R. F.",
""
]
] | We continue our investigation into intersections of closed paths on a torus, to further our understanding of the commutator algebra of Wilson loop observables in 2+1 quantum gravity, when the cosmological constant is negative. We give a concise review of previous results, e.g. that signed area phases relate observables... |
gr-qc/9209005 | Tsvi | Dalia S. Goldwirth, Malcolm J. Perry and Tsvi Piran | The Loss of Unitarity in the Vicinity of a Time Machine | 13 pages | null | null | null | gr-qc hep-th | null | We construct the propagator of a non-relativistic non-interacting particle in
a flat spacetime in which two regions have been identified. This corresponds to
the simplest "time machine". We show that while completeness is lost in the
vicinity of the time machine it holds before the time machine appears and it is
reco... | [
{
"created": "Mon, 14 Sep 1992 19:53:30 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Goldwirth",
"Dalia S.",
""
],
[
"Perry",
"Malcolm J.",
""
],
[
"Piran",
"Tsvi",
""
]
] | We construct the propagator of a non-relativistic non-interacting particle in a flat spacetime in which two regions have been identified. This corresponds to the simplest "time machine". We show that while completeness is lost in the vicinity of the time machine it holds before the time machine appears and it is recove... |
gr-qc/9401028 | Peter Peldan | Subenoy Chakraborty and Peter Peldan | Towards a unification of gravity and Yang-Mills theory | 7 pages, CGPG-94/1-3 | Phys.Rev.Lett.73:1195-1198,1994 | 10.1103/PhysRevLett.73.1195 | null | gr-qc hep-th | null | We introduce a gauge and diffeomorphism invariant theory on Yang-Mills phase
space. The theory is well defined for an arbitrary gauge group with an
invariant bilinear form, it contains only first class constraints, and the
spacetime metric has a simple form in terms of the phase space variables. With
gauge group $SO(... | [
{
"created": "Tue, 25 Jan 1994 20:50:10 GMT",
"version": "v1"
}
] | 2010-11-01 | [
[
"Chakraborty",
"Subenoy",
""
],
[
"Peldan",
"Peter",
""
]
] | We introduce a gauge and diffeomorphism invariant theory on Yang-Mills phase space. The theory is well defined for an arbitrary gauge group with an invariant bilinear form, it contains only first class constraints, and the spacetime metric has a simple form in terms of the phase space variables. With gauge group $SO(3,... |
gr-qc/9411004 | Don N. Page | Don N. Page (CIAR Cosmology Program, University of Alberta) | Probabilities Don't Matter | 22 pages, LaTeX, references added and other minor changes | null | null | Alberta-Thy-28-94 | gr-qc hep-th quant-ph | null | It is suggested that probabilities need not apply at all to matter in the
physical world, which may be entirely described by the amplitudes given by the
quantum mechanical state. Instead, probabilities may apply only to conscious
perceptions in the mental world. Such perceptions may not form unique sequences
that one... | [
{
"created": "Tue, 1 Nov 1994 23:41:22 GMT",
"version": "v1"
},
{
"created": "Wed, 2 Nov 1994 18:45:25 GMT",
"version": "v2"
},
{
"created": "Thu, 3 Nov 1994 23:47:08 GMT",
"version": "v3"
},
{
"created": "Sat, 26 Nov 1994 07:42:18 GMT",
"version": "v4"
}
] | 2008-02-03 | [
[
"Page",
"Don N.",
"",
"CIAR Cosmology Program, University of Alberta"
]
] | It is suggested that probabilities need not apply at all to matter in the physical world, which may be entirely described by the amplitudes given by the quantum mechanical state. Instead, probabilities may apply only to conscious perceptions in the mental world. Such perceptions may not form unique sequences that one c... |
2212.09375 | Julio Arrechea | Julio Arrechea, Carlos Barcel\'o, Ra\'ul Carballo-Rubio, Luis J. Garay | Asymptotically flat vacuum solutions in order-reduced semiclassical
gravity | 20 pages, 4 figures. v2: Added minor comments and corrected typos to
match published version | null | 10.1103/PhysRevD.107.085005 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate the effects of quantum backreaction on the Schwarzschild
geometry in the semiclassical approximation. The renormalized stress-energy
tensor (RSET) of a scalar field is modelled via an order reduction of the
analytical approximation derived by Anderson, Hiscock and Samuel (AHS). As the
resulting AHS sem... | [
{
"created": "Mon, 19 Dec 2022 11:22:48 GMT",
"version": "v1"
},
{
"created": "Tue, 25 Jul 2023 11:29:58 GMT",
"version": "v2"
}
] | 2023-07-26 | [
[
"Arrechea",
"Julio",
""
],
[
"Barceló",
"Carlos",
""
],
[
"Carballo-Rubio",
"Raúl",
""
],
[
"Garay",
"Luis J.",
""
]
] | We investigate the effects of quantum backreaction on the Schwarzschild geometry in the semiclassical approximation. The renormalized stress-energy tensor (RSET) of a scalar field is modelled via an order reduction of the analytical approximation derived by Anderson, Hiscock and Samuel (AHS). As the resulting AHS semic... |
2403.13860 | Abraao Capistrano | Abra\~ao J. S. Capistrano, Rafael C. Nunes, Lu\'is A. Cabral | Lower tensor-to-scalar ratio as possible signature of modified gravity | 14 pages, 3 figures, accepted version in PRD | null | 10.1103/PhysRevD.109.123517 | null | gr-qc astro-ph.CO | http://creativecommons.org/licenses/by/4.0/ | This paper simplifies the induced four-dimensional gravitational equations
originating from a five-dimensional bulk within the framework of Nash's
embeddings, incorporating them into a well-known $\mu-\Sigma$ modified gravity
(MG) parametrization. By leveraging data from Planck Public Release 4 (PR4),
BICEP/Keck Arra... | [
{
"created": "Tue, 19 Mar 2024 22:55:49 GMT",
"version": "v1"
},
{
"created": "Mon, 10 Jun 2024 18:17:02 GMT",
"version": "v2"
}
] | 2024-06-12 | [
[
"Capistrano",
"Abraão J. S.",
""
],
[
"Nunes",
"Rafael C.",
""
],
[
"Cabral",
"Luís A.",
""
]
] | This paper simplifies the induced four-dimensional gravitational equations originating from a five-dimensional bulk within the framework of Nash's embeddings, incorporating them into a well-known $\mu-\Sigma$ modified gravity (MG) parametrization. By leveraging data from Planck Public Release 4 (PR4), BICEP/Keck Array ... |
2103.15891 | Caroline Owen | Caroline B. Owen, Nicol\'as Yunes, Helvi Witek | Petrov Type, Principal Null Directions, and Killing Tensors of
Slowly-Rotating Black Holes in Quadratic Gravity | 23 pages, 2 figures, reuploaded on 01/04/24 to correct small typo in
Eq (C5) | Phys. Rev. D 103, 124057 (2021) | 10.1103/PhysRevD.103.124057 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The ability to test general relativity in extreme gravity regimes using
gravitational wave observations from current ground-based or future space-based
detectors motivates the mathematical study of the symmetries of black holes in
modified theories of gravity. In this paper we focus on spinning black hole
solutions i... | [
{
"created": "Mon, 29 Mar 2021 19:00:11 GMT",
"version": "v1"
},
{
"created": "Thu, 15 Jul 2021 19:08:38 GMT",
"version": "v2"
},
{
"created": "Thu, 22 Jul 2021 14:40:48 GMT",
"version": "v3"
},
{
"created": "Fri, 5 Jan 2024 13:16:27 GMT",
"version": "v4"
}
] | 2024-01-08 | [
[
"Owen",
"Caroline B.",
""
],
[
"Yunes",
"Nicolás",
""
],
[
"Witek",
"Helvi",
""
]
] | The ability to test general relativity in extreme gravity regimes using gravitational wave observations from current ground-based or future space-based detectors motivates the mathematical study of the symmetries of black holes in modified theories of gravity. In this paper we focus on spinning black hole solutions in ... |
1604.00463 | Tekin Dereli | T.Dereli and C.Yetismisoglu | New Improved Massive Gravity and Three Dimensional Spacetimes of
Constant Curvature and Constant Torsion | 16 pages | Phys. Rev. D 94, 064067 (2016) | 10.1103/PhysRevD.94.064067 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We derive the field equations for topologically massive gravity coupled with
the most general quadratic curvature terms using the language of exterior
differential forms and a first order constrained variational principle. We find
variational field equations both in the presence and absence of torsion. We
then show t... | [
{
"created": "Sat, 2 Apr 2016 05:31:35 GMT",
"version": "v1"
},
{
"created": "Mon, 20 Jun 2016 11:20:14 GMT",
"version": "v2"
}
] | 2016-09-28 | [
[
"Dereli",
"T.",
""
],
[
"Yetismisoglu",
"C.",
""
]
] | We derive the field equations for topologically massive gravity coupled with the most general quadratic curvature terms using the language of exterior differential forms and a first order constrained variational principle. We find variational field equations both in the presence and absence of torsion. We then show tha... |
2307.04739 | Orlando Luongo | Alessio Belfiglio, Youri Carloni, Orlando Luongo | Particle production from non-minimal coupling in a symmetry breaking
potential transporting vacuum energy | 22 pages, 13 figures, 9 tables | Phys. Dark Univ., 44, 101458, (2024) | null | null | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We propose an inflationary scenario where the inflaton field is non-minimally
coupled to spacetime curvature and inflation is driven by a vacuum energy
symmetry breaking potential without specifying \emph{a priori} whether the
inflaton field is small or large. As we incorporate vacuum energy into our
analysis, we fur... | [
{
"created": "Mon, 10 Jul 2023 17:52:04 GMT",
"version": "v1"
},
{
"created": "Mon, 3 Jun 2024 17:07:08 GMT",
"version": "v2"
}
] | 2024-06-04 | [
[
"Belfiglio",
"Alessio",
""
],
[
"Carloni",
"Youri",
""
],
[
"Luongo",
"Orlando",
""
]
] | We propose an inflationary scenario where the inflaton field is non-minimally coupled to spacetime curvature and inflation is driven by a vacuum energy symmetry breaking potential without specifying \emph{a priori} whether the inflaton field is small or large. As we incorporate vacuum energy into our analysis, we furth... |
1504.04050 | Ermis Mitsou | Ermis Mitsou | Aspects of Infrared Non-local Modifications of General Relativity | 144 pages, 13 figures, Ph.D. thesis | Springer Theses (2016) | 10.1007/978-3-319-31729-8 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this thesis we are interested in the problem of dark energy in cosmology.
In particular, we consider the possibility that this effect is due to an
infrared non-local modification of the theory of General Relativity. Inspired
by massive gravity, we construct non-local theories in which gravity may be
massive, but w... | [
{
"created": "Wed, 15 Apr 2015 21:05:07 GMT",
"version": "v1"
}
] | 2016-04-26 | [
[
"Mitsou",
"Ermis",
""
]
] | In this thesis we are interested in the problem of dark energy in cosmology. In particular, we consider the possibility that this effect is due to an infrared non-local modification of the theory of General Relativity. Inspired by massive gravity, we construct non-local theories in which gravity may be massive, but whe... |
1806.09129 | Kourosh Nozari | Kourosh Nozari, S. Shafizadeh and N. Rashidi | Lowering the self-coupling of the scalar field in a generalized Higgs
inflation | 13 Pages, 4 Figures | Astrophys. Space Sci. 363 (2018) 135 | 10.1007/s10509-018-3358-2 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study cosmological dynamics of a generalized Higgs inflation. By expanding
the action up to the second and third order in the small perturbations, we
study the primordial perturbation and its non-Gaussian distribution. We study
the non-Gaussian feature in both the equilateral and orthogonal configurations.
By adop... | [
{
"created": "Sun, 24 Jun 2018 11:18:30 GMT",
"version": "v1"
}
] | 2018-06-26 | [
[
"Nozari",
"Kourosh",
""
],
[
"Shafizadeh",
"S.",
""
],
[
"Rashidi",
"N.",
""
]
] | We study cosmological dynamics of a generalized Higgs inflation. By expanding the action up to the second and third order in the small perturbations, we study the primordial perturbation and its non-Gaussian distribution. We study the non-Gaussian feature in both the equilateral and orthogonal configurations. By adopti... |
1805.08764 | Yakov Shlapentokh-Rothman | Mihalis Dafermos and Yakov Shlapentokh-Rothman | Rough initial data and the strength of the blue-shift instability on
cosmological black holes with $\Lambda > 0$ | references added and minor revisions | null | 10.1088/1361-6382/aadbcf | null | gr-qc math-ph math.AP math.DG math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider the wave equation on Reissner-Nordstr\"om-de Sitter and more
generally Kerr-Newman-de Sitter black hole spacetimes with $\Lambda>0$. The
strength of the blue-shift instability associated to the Cauchy horizon of
these spacetimes has been the subject of much discussion, since-in contrast to
the $\Lambda=0$... | [
{
"created": "Tue, 22 May 2018 17:50:44 GMT",
"version": "v1"
},
{
"created": "Mon, 18 Jun 2018 00:08:55 GMT",
"version": "v2"
}
] | 2018-09-26 | [
[
"Dafermos",
"Mihalis",
""
],
[
"Shlapentokh-Rothman",
"Yakov",
""
]
] | We consider the wave equation on Reissner-Nordstr\"om-de Sitter and more generally Kerr-Newman-de Sitter black hole spacetimes with $\Lambda>0$. The strength of the blue-shift instability associated to the Cauchy horizon of these spacetimes has been the subject of much discussion, since-in contrast to the $\Lambda=0$ c... |
gr-qc/0606116 | Gustav Holzegel | G.W. Gibbons, G. Holzegel | The Positive Mass and Isoperimetric Inequalities for Axisymmetric Black
Holes in four and five dimensions | 21 pages, 3 figures | Class.Quant.Grav.23:6459-6478,2006 | 10.1088/0264-9381/23/22/022 | DAMTP-2006-53 | gr-qc hep-th | null | In this paper we revisit Brill's proof of positive mass for
three-dimensional, time-symmetric, axisymmetric initial data and generalise his
argument in various directions. In 3+1 dimensions, we include an apparent
horizon in the initial data and prove the Riemannian Penrose inequality in a
wide number of cases by an ... | [
{
"created": "Tue, 27 Jun 2006 12:01:34 GMT",
"version": "v1"
}
] | 2009-10-07 | [
[
"Gibbons",
"G. W.",
""
],
[
"Holzegel",
"G.",
""
]
] | In this paper we revisit Brill's proof of positive mass for three-dimensional, time-symmetric, axisymmetric initial data and generalise his argument in various directions. In 3+1 dimensions, we include an apparent horizon in the initial data and prove the Riemannian Penrose inequality in a wide number of cases by an el... |
1101.1927 | Hwee Kuan Lee | Hwee Kuan Lee | A Finite State Model for Time Travel | 6 pages, 1 figure | null | null | null | gr-qc cond-mat.stat-mech math-ph math.MP | http://creativecommons.org/licenses/by/3.0/ | A time machine that sends information back to the past may, in principle, be
built using closed time-like curves. However, the realization of a time machine
must be congruent with apparent paradoxes that arise from traveling back in
time. Using a simple model to analyze the consequences of time travel, we show
that s... | [
{
"created": "Mon, 10 Jan 2011 19:13:01 GMT",
"version": "v1"
}
] | 2011-01-11 | [
[
"Lee",
"Hwee Kuan",
""
]
] | A time machine that sends information back to the past may, in principle, be built using closed time-like curves. However, the realization of a time machine must be congruent with apparent paradoxes that arise from traveling back in time. Using a simple model to analyze the consequences of time travel, we show that sev... |
0912.2812 | Vladimir Dzhunushaliev | V. Dzhunushaliev, V. Folomeev, B. Kleihaus and J. Kunz | Some thick brane solutions in $f(R)$-gravity | final version | JHEP 1004:130,2010 | 10.1007/JHEP04(2010)130 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The thick brane model is considered in $f(R)\sim R^n$ gravity. It is shown
that regular asymptotically anti-de Sitter solutions exist in some range of
values of the parameter $n$. A peculiar feature of this model is the existence
of a fixed point in the phase plane where all solutions start, and the brane
can be plac... | [
{
"created": "Tue, 15 Dec 2009 07:06:48 GMT",
"version": "v1"
},
{
"created": "Thu, 6 May 2010 12:22:56 GMT",
"version": "v2"
}
] | 2010-05-12 | [
[
"Dzhunushaliev",
"V.",
""
],
[
"Folomeev",
"V.",
""
],
[
"Kleihaus",
"B.",
""
],
[
"Kunz",
"J.",
""
]
] | The thick brane model is considered in $f(R)\sim R^n$ gravity. It is shown that regular asymptotically anti-de Sitter solutions exist in some range of values of the parameter $n$. A peculiar feature of this model is the existence of a fixed point in the phase plane where all solutions start, and the brane can be placed... |
gr-qc/0507133 | Filimonova Irina V | V.A.Petrov | Plenary talk presented at Workshop on High Energy Physics&Field Theory
(Protvino, Russia, 2004) | Plenary talk presented at Workshop on High Energy Physics&Field
Theory (Protvino, Russia, 2004) | null | null | HEPFT/2004/14 | gr-qc | null | The problems concerning a possible discovery of the mini block holes at
earthly accelerators are discussed.
| [
{
"created": "Fri, 29 Jul 2005 08:39:40 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Petrov",
"V. A.",
""
]
] | The problems concerning a possible discovery of the mini block holes at earthly accelerators are discussed. |
gr-qc/9702036 | P. S. Joshi | P. S. Joshi | Gravitational Collapse | 40pages, latex, one eps figure included, appeared in `Singularities,
Black Holes and Cosmic Censorship' (On the fortieth anniversary of the
Raychaudhuri Equation), IUCAA publication, Pune, India | null | null | null | gr-qc hep-th | null | We review here some recent developments on the issue of final fate of
gravitational collapse within the framework of Einstein theory of gravity. The
structure of collapsed object is discussed in terms of either a black hole or a
singularity having causal connection with outside universe. Implications for
cosmic censo... | [
{
"created": "Wed, 19 Feb 1997 08:18:02 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Joshi",
"P. S.",
""
]
] | We review here some recent developments on the issue of final fate of gravitational collapse within the framework of Einstein theory of gravity. The structure of collapsed object is discussed in terms of either a black hole or a singularity having causal connection with outside universe. Implications for cosmic censors... |
gr-qc/0501047 | Dan-Tao Peng | Dan-Tao Peng | The Cosmological Perturbation of Braneworld with An Anisotropic Bulk | no figures, revised version, some references added | null | null | USTC-ICTS-05-02 | gr-qc | null | The braneworld cosmological model was constructed by embedding a 3-brane into
a higher dimensional bulk background geometry and the usual matter of our
universe was assumed to be confined in the brane while the gravity can
propagate in the bulk. By considering that the bulk geometry is anisotropic,
after reviewed the... | [
{
"created": "Fri, 14 Jan 2005 08:40:35 GMT",
"version": "v1"
},
{
"created": "Tue, 18 Jan 2005 05:04:53 GMT",
"version": "v2"
}
] | 2007-05-23 | [
[
"Peng",
"Dan-Tao",
""
]
] | The braneworld cosmological model was constructed by embedding a 3-brane into a higher dimensional bulk background geometry and the usual matter of our universe was assumed to be confined in the brane while the gravity can propagate in the bulk. By considering that the bulk geometry is anisotropic, after reviewed the s... |
gr-qc/9710110 | Dario Nunez | Dario Nunez | Oscillating shells: A model for a variable cosmic object | null | Astrophys.J. 482 (1997) 963-970 | 10.1086/304190 | null | gr-qc | null | A model for a possible variable cosmic object is presented. The model
consists of a massive shell surrounding a compact object. The gravitational and
self-gravitational forces tend to collapse the shell, but the internal
tangential stresses oppose the collapse. The combined action of the two types
of forces is studie... | [
{
"created": "Thu, 23 Oct 1997 14:52:51 GMT",
"version": "v1"
}
] | 2009-10-30 | [
[
"Nunez",
"Dario",
""
]
] | A model for a possible variable cosmic object is presented. The model consists of a massive shell surrounding a compact object. The gravitational and self-gravitational forces tend to collapse the shell, but the internal tangential stresses oppose the collapse. The combined action of the two types of forces is studied ... |
2111.13270 | Orfeu Bertolami | Riccardo March, Orfeu Bertolami, Marco Muccino, Claudio Gomes, Simone
Dell'Agnello | Cassini and extra force constraints to nonminimally coupled gravity with
screening mechanism | 27 pages, 11 figuures | null | 10.1103/PhysRevD.105.044048 | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | We consider a nonminimally coupled curvature-matter gravity theory at the
Solar System scale. Both a fifth force of Yukawa type and a further
non-Newtonian extra force that arises from the nonminimal coupling are present
in the solar interior and in the solar atmosphere up to interplanetary space.
The extra force dep... | [
{
"created": "Thu, 25 Nov 2021 23:11:05 GMT",
"version": "v1"
}
] | 2022-03-09 | [
[
"March",
"Riccardo",
""
],
[
"Bertolami",
"Orfeu",
""
],
[
"Muccino",
"Marco",
""
],
[
"Gomes",
"Claudio",
""
],
[
"Dell'Agnello",
"Simone",
""
]
] | We consider a nonminimally coupled curvature-matter gravity theory at the Solar System scale. Both a fifth force of Yukawa type and a further non-Newtonian extra force that arises from the nonminimal coupling are present in the solar interior and in the solar atmosphere up to interplanetary space. The extra force depen... |
0902.3652 | David Brown | J. David Brown | Covariant formulations of BSSN and the standard gauge | 6 pages, no figures. Notation has been improved and typos have been
corrected | Phys.Rev.D79:104029,2009 | 10.1103/PhysRevD.79.104029 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The BSSN and standard gauge equations are written in covariant form with
respect to spatial coordinate transformations. The BSSN variables are defined
as tensors with no density weights. This allows us to evolve a given set of
initial data using two different coordinate systems and to relate the results
using the fam... | [
{
"created": "Fri, 20 Feb 2009 20:31:49 GMT",
"version": "v1"
},
{
"created": "Fri, 22 May 2009 13:20:16 GMT",
"version": "v2"
}
] | 2009-07-30 | [
[
"Brown",
"J. David",
""
]
] | The BSSN and standard gauge equations are written in covariant form with respect to spatial coordinate transformations. The BSSN variables are defined as tensors with no density weights. This allows us to evolve a given set of initial data using two different coordinate systems and to relate the results using the famil... |
2405.06197 | Yitian Chen | Yitian Chen, Michael Boyle, Nils Deppe, Lawrence E. Kidder, Keefe
Mitman, Jordan Moxon, Kyle C. Nelli, Harald P. Pfeiffer, Mark A. Scheel,
William Throwe, Nils L. Vu, Saul A. Teukolsky | Improved frequency spectra of gravitational waves with memory in a
binary-black-hole simulation | 24 pages, 11 figures, 5 tables | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Numerical relativists can now produce gravitational waveforms with memory
effects routinely and accurately. The gravitational-wave memory effect contains
very low-frequency components, including a persistent offset. The presence of
these components violates basic assumptions about time-shift behavior
underpinning sta... | [
{
"created": "Fri, 10 May 2024 02:24:01 GMT",
"version": "v1"
}
] | 2024-05-13 | [
[
"Chen",
"Yitian",
""
],
[
"Boyle",
"Michael",
""
],
[
"Deppe",
"Nils",
""
],
[
"Kidder",
"Lawrence E.",
""
],
[
"Mitman",
"Keefe",
""
],
[
"Moxon",
"Jordan",
""
],
[
"Nelli",
"Kyle C.",
""
],
[
"Pfe... | Numerical relativists can now produce gravitational waveforms with memory effects routinely and accurately. The gravitational-wave memory effect contains very low-frequency components, including a persistent offset. The presence of these components violates basic assumptions about time-shift behavior underpinning stand... |
gr-qc/0408017 | Schmidt H.-J. | H.-J. Schmidt | Schwarzschild and Synge once again | 2 pages, LaTeX, submitted for publication; 2 references, one Note,
and an Acknowledgement are added | Gen.Rel.Grav. 37 (2005) 1157-1158 | 10.1007/s10714-005-0100-5 | null | gr-qc | null | We complete the historical overview about the geometry of a Schwarzschild
black hole at its horizon by emphasizing the contribution made by J. L. Synge
in 1950 to its clarification.
| [
{
"created": "Fri, 6 Aug 2004 06:54:15 GMT",
"version": "v1"
},
{
"created": "Tue, 24 Aug 2004 14:29:12 GMT",
"version": "v2"
}
] | 2009-11-10 | [
[
"Schmidt",
"H. -J.",
""
]
] | We complete the historical overview about the geometry of a Schwarzschild black hole at its horizon by emphasizing the contribution made by J. L. Synge in 1950 to its clarification. |
gr-qc/0507068 | Andrea Nerozzi Mr | Andrea Nerozzi, Marco Bruni, Virginia Re, Lior M. Burko | Towards a wave-extraction method for numerical relativity: IV. Testing
the quasi-Kinnersley method in the Bondi-Sachs framework | 12 pages, 11 figures | Phys.Rev. D73 (2006) 044020 | 10.1103/PhysRevD.73.044020 | null | gr-qc | null | We present a numerical study of the evolution of a non-linearly disturbed
black hole described by the Bondi--Sachs metric, for which the outgoing
gravitational waves can readily be found using the news function. We compare
the gravitational wave output obtained with the use of the news function in the
Bondi--Sachs fr... | [
{
"created": "Fri, 15 Jul 2005 20:46:27 GMT",
"version": "v1"
},
{
"created": "Wed, 15 Feb 2006 18:23:22 GMT",
"version": "v2"
}
] | 2009-11-11 | [
[
"Nerozzi",
"Andrea",
""
],
[
"Bruni",
"Marco",
""
],
[
"Re",
"Virginia",
""
],
[
"Burko",
"Lior M.",
""
]
] | We present a numerical study of the evolution of a non-linearly disturbed black hole described by the Bondi--Sachs metric, for which the outgoing gravitational waves can readily be found using the news function. We compare the gravitational wave output obtained with the use of the news function in the Bondi--Sachs fram... |
1401.0327 | Seth A. Major | Jeremy Adelman, Franz Hinterleitner, Seth Major | Quantum volume and length fluctuations in a midi-superspace model of
Minkowski space | 43 pages | Class. Quantum Grav. 32 (2015) 055009 | 10.1088/0264-9381/32/5/055009 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In a (1+1)-dimensional midi-superspace model for gravitational plane waves, a
flat space-time condition is imposed with constraints derived from null Killing
vectors. Solutions to a straightforward regularization of these constraints
have diverging length and volume expectation values. Physically acceptable
solutions... | [
{
"created": "Wed, 1 Jan 2014 20:46:24 GMT",
"version": "v1"
},
{
"created": "Thu, 27 Feb 2014 20:24:08 GMT",
"version": "v2"
},
{
"created": "Thu, 25 Sep 2014 21:09:44 GMT",
"version": "v3"
},
{
"created": "Thu, 28 Apr 2016 09:38:30 GMT",
"version": "v4"
}
] | 2016-04-29 | [
[
"Adelman",
"Jeremy",
""
],
[
"Hinterleitner",
"Franz",
""
],
[
"Major",
"Seth",
""
]
] | In a (1+1)-dimensional midi-superspace model for gravitational plane waves, a flat space-time condition is imposed with constraints derived from null Killing vectors. Solutions to a straightforward regularization of these constraints have diverging length and volume expectation values. Physically acceptable solutions i... |
gr-qc/0106096 | Charles Hellaby | Andrzej Krasinski and Charles Hellaby | Structure formation in the Lemaitre-Tolman model | LaTeX 2e plus 14 .eps & .ps figure files. 33 pages including figures.
Minor revisions of text and data make it more precise and consistent.
Currently scheduled for Phys Rev D vol 64, December 15 issue | Phys.Rev.D65:023501,2002 | 10.1103/PhysRevD.65.023501 | uct-cosmology-01/06 | gr-qc astro-ph | null | Structure formation within the Lemaitre-Tolman model is investigated in a
general manner. We seek models such that the initial density perturbation
within a homogeneous background has a smaller mass than the structure into
which it will develop, and the perturbation then accretes more mass during
evolution. This is a... | [
{
"created": "Fri, 29 Jun 2001 17:05:28 GMT",
"version": "v1"
},
{
"created": "Wed, 31 Oct 2001 12:06:00 GMT",
"version": "v2"
}
] | 2008-11-26 | [
[
"Krasinski",
"Andrzej",
""
],
[
"Hellaby",
"Charles",
""
]
] | Structure formation within the Lemaitre-Tolman model is investigated in a general manner. We seek models such that the initial density perturbation within a homogeneous background has a smaller mass than the structure into which it will develop, and the perturbation then accretes more mass during evolution. This is a g... |
0811.1799 | Thomas Sotiriou | Thomas P. Sotiriou | Covariant Effective Action for Loop Quantum Cosmology from Order
Reduction | minor changes to match published version | Phys.Rev.D79:044035,2009 | 10.1103/PhysRevD.79.044035 | null | gr-qc astro-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Loop quantum cosmology (LQC) seems to be predicting modified effective
Friedmann equations without extra degrees of freedom. A puzzle arises if one
decides to seek for a covariant effective action which would lead to the given
Friedmann equation: The Einstein--Hilbert action is the only action that leads
to second or... | [
{
"created": "Tue, 11 Nov 2008 23:45:10 GMT",
"version": "v1"
},
{
"created": "Thu, 26 Feb 2009 21:33:36 GMT",
"version": "v2"
}
] | 2009-02-26 | [
[
"Sotiriou",
"Thomas P.",
""
]
] | Loop quantum cosmology (LQC) seems to be predicting modified effective Friedmann equations without extra degrees of freedom. A puzzle arises if one decides to seek for a covariant effective action which would lead to the given Friedmann equation: The Einstein--Hilbert action is the only action that leads to second orde... |
2203.00619 | Manuel Hohmann | Sebastian Bahamonde, Konstantinos F. Dialektopoulos, Manuel Hohmann,
Jackson Levi Said, Christian Pfeifer, Emmanuel N. Saridakis | Perturbations in Non-Flat Cosmology for $f(T)$ gravity | 21 pagers, no figures | null | 10.1140/epjc/s10052-023-11322-3 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The study of cosmological perturbation theory in $f(T)$ gravity is a topic of
great interest in teleparallel gravity since this is one of the simplest
generalizations of the theory that modifies the teleparallel equivalent of
general relativity. In this work, we explore the possibility of a non-flat FLRW
background s... | [
{
"created": "Tue, 1 Mar 2022 17:00:58 GMT",
"version": "v1"
},
{
"created": "Tue, 29 Mar 2022 17:40:00 GMT",
"version": "v2"
}
] | 2023-03-22 | [
[
"Bahamonde",
"Sebastian",
""
],
[
"Dialektopoulos",
"Konstantinos F.",
""
],
[
"Hohmann",
"Manuel",
""
],
[
"Said",
"Jackson Levi",
""
],
[
"Pfeifer",
"Christian",
""
],
[
"Saridakis",
"Emmanuel N.",
""
]
] | The study of cosmological perturbation theory in $f(T)$ gravity is a topic of great interest in teleparallel gravity since this is one of the simplest generalizations of the theory that modifies the teleparallel equivalent of general relativity. In this work, we explore the possibility of a non-flat FLRW background sol... |
1807.11807 | Matteo Luca Ruggiero | Lorenzo Iorio, Matteo Luca Ruggiero | Constraining some $r^{-n}$ extra-potentials in modified gravity models
with LAGEOS-type laser-ranged geodetic satellites | 20 pages, 4 figures; revised to match the version accepted for
publication in JCAP | JCAP10(2018)021 | 10.1088/1475-7516/2018/10/021 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We focus on several models of modified gravity which share the characteristic
of leading to perturbations of the Newtonian potential $\propto K_2~r^{-2}$ and
$\propto K_3~r^{-3}$. In particular, by using existing long data records of the
LAGEOS satellites, tracked on an almost continuous basis with the Satellite
Lase... | [
{
"created": "Tue, 31 Jul 2018 13:25:47 GMT",
"version": "v1"
},
{
"created": "Thu, 4 Oct 2018 15:14:50 GMT",
"version": "v2"
}
] | 2018-10-17 | [
[
"Iorio",
"Lorenzo",
""
],
[
"Ruggiero",
"Matteo Luca",
""
]
] | We focus on several models of modified gravity which share the characteristic of leading to perturbations of the Newtonian potential $\propto K_2~r^{-2}$ and $\propto K_3~r^{-3}$. In particular, by using existing long data records of the LAGEOS satellites, tracked on an almost continuous basis with the Satellite Laser ... |
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