id stringlengths 9 13 | submitter stringlengths 1 64 ⌀ | authors stringlengths 5 22.9k | title stringlengths 4 245 | comments stringlengths 1 548 ⌀ | journal-ref stringlengths 4 362 ⌀ | doi stringlengths 12 82 ⌀ | report-no stringlengths 2 281 ⌀ | categories stringclasses 793
values | license stringclasses 9
values | orig_abstract stringlengths 24 1.95k | versions listlengths 1 30 | update_date stringlengths 10 10 | authors_parsed listlengths 1 1.74k | abstract stringlengths 21 1.95k |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2303.11713 | Enrico Barausse | Enrico Barausse | The physics of gravitational waves | 52 pages, 14 figures. To be submitted to POS for the proceedings of
the September 2022 summer school of the COST Action CA18108 on "Theoretical
and experimental approaches to quantum gravity phenomenology" (Belgrade,
Serbia) | POS 440(002), 2024 | 10.22323/1.440.0002 | null | gr-qc astro-ph.CO astro-ph.GA astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | These lecture notes collect the material that I have been using over the
years for various short courses on the physics of gravitational waves, first at
the Institut d'Astrophysique de Paris (France), and then at SISSA (Italy) and
various summer/winter schools. The level should be appropriate for PhD students
in phys... | [
{
"created": "Tue, 21 Mar 2023 10:04:06 GMT",
"version": "v1"
}
] | 2024-03-20 | [
[
"Barausse",
"Enrico",
""
]
] | These lecture notes collect the material that I have been using over the years for various short courses on the physics of gravitational waves, first at the Institut d'Astrophysique de Paris (France), and then at SISSA (Italy) and various summer/winter schools. The level should be appropriate for PhD students in physic... |
2201.08857 | Thomas W. Baumgarte | Thomas W. Baumgarte and Henrique P. de Oliveira | Bona-Masso slicing conditions and the lapse close to black-hole
punctures | 8 pages, 4 figures | null | 10.1103/PhysRevD.105.064045 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider several families of functions $f(\alpha)$ that appear in the
Bona-Masso slicing condition for the lapse function $\alpha$. Focusing on
spherically symmetric and time-independent slices we apply these conditions to
the Schwarzschild spacetime in order to construct analytical expressions for
the lapse $\alp... | [
{
"created": "Fri, 21 Jan 2022 19:00:04 GMT",
"version": "v1"
}
] | 2022-04-06 | [
[
"Baumgarte",
"Thomas W.",
""
],
[
"de Oliveira",
"Henrique P.",
""
]
] | We consider several families of functions $f(\alpha)$ that appear in the Bona-Masso slicing condition for the lapse function $\alpha$. Focusing on spherically symmetric and time-independent slices we apply these conditions to the Schwarzschild spacetime in order to construct analytical expressions for the lapse $\alpha... |
2302.03866 | Zacharias Roupas | Zacharias Roupas | Thermodynamic instability of dark energy equation of state | null | Physics of the Dark Universe, 40, 101181 (2023) | 10.1016/j.dark.2023.101181 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We derive the dark energy fluid equation of state $P = -\epsilon = {\rm
const.}$ as an extremum of entropy, subject to the Hamiltonian constraint of
General Relativity. However, we identify perturbations that can render this
extremum an entropy minimum designating a thermodynamic instability and specify
the mathemati... | [
{
"created": "Wed, 8 Feb 2023 03:54:31 GMT",
"version": "v1"
}
] | 2023-02-09 | [
[
"Roupas",
"Zacharias",
""
]
] | We derive the dark energy fluid equation of state $P = -\epsilon = {\rm const.}$ as an extremum of entropy, subject to the Hamiltonian constraint of General Relativity. However, we identify perturbations that can render this extremum an entropy minimum designating a thermodynamic instability and specify the mathematica... |
gr-qc/0109002 | Gerard Clement | Gerard Clement and Alessandro Fabbri | Critical collapse in 2+1 dimensional AdS spacetime: quasi-CSS solutions
and linear perturbations | 33 pages, 6 figures. Nuclear Physics B (in press) | Nucl.Phys. B630 (2002) 269-292 | 10.1016/S0550-3213(02)00183-9 | null | gr-qc hep-th | null | We construct a one-parameter family of exact time-dependent solutions to 2+1
gravity with a negative cosmological constant and a massless minimally coupled
scalar field as source. These solutions present a continuously self-similar
(CSS) behaviour near the central singularity, as observed in critical collapse,
and an... | [
{
"created": "Sat, 1 Sep 2001 13:06:30 GMT",
"version": "v1"
},
{
"created": "Wed, 3 Apr 2002 13:26:02 GMT",
"version": "v2"
}
] | 2009-11-07 | [
[
"Clement",
"Gerard",
""
],
[
"Fabbri",
"Alessandro",
""
]
] | We construct a one-parameter family of exact time-dependent solutions to 2+1 gravity with a negative cosmological constant and a massless minimally coupled scalar field as source. These solutions present a continuously self-similar (CSS) behaviour near the central singularity, as observed in critical collapse, and an a... |
2301.03795 | Ulf Leonhardt | Ulf Leonhardt | Wave correlations and quantum noise in cosmology | null | J. Phys. A 56, 024001 (2023) | 10.1088/1751-8121/acb027 | null | gr-qc physics.optics quant-ph | http://creativecommons.org/licenses/by/4.0/ | Wave noise is correlated. While it may look random in space, correlations
appear in space-time, because the noise is carried by wave propagation. These
correlations of wave noise give rise to fluctuation forces such as the Casimir
force, they are responsible for the particle creation in the dynamical Casimir
effect a... | [
{
"created": "Tue, 10 Jan 2023 05:38:55 GMT",
"version": "v1"
},
{
"created": "Tue, 31 Jan 2023 06:52:00 GMT",
"version": "v2"
}
] | 2023-02-01 | [
[
"Leonhardt",
"Ulf",
""
]
] | Wave noise is correlated. While it may look random in space, correlations appear in space-time, because the noise is carried by wave propagation. These correlations of wave noise give rise to fluctuation forces such as the Casimir force, they are responsible for the particle creation in the dynamical Casimir effect and... |
2202.13790 | Silvia Trabucco | Maria Luisa Chiofalo, Dario Grasso, Massimo Mannarelli, Silvia
Trabucco | Dissipative processes at the acoustic horizon | 9 pages, 1 figure. Extended discussion on viscosities. Added
references. Results unchanged, almost matches the published version on NJP | null | 10.1088/1367-2630/ad4628 | null | gr-qc hep-ph hep-th | http://creativecommons.org/licenses/by/4.0/ | A transonic fluid flow generates an acoustic hole that is the hydrodynamic
analogue of a gravitational black hole. Acoustic holes emit a detectable
thermal radiation of phonons at a characteristic Hawking temperature. The
crucial concept is that the spontaneous phonon emission at the horizon produces
an irreversible ... | [
{
"created": "Mon, 28 Feb 2022 13:28:17 GMT",
"version": "v1"
},
{
"created": "Fri, 10 May 2024 12:58:55 GMT",
"version": "v2"
}
] | 2024-05-13 | [
[
"Chiofalo",
"Maria Luisa",
""
],
[
"Grasso",
"Dario",
""
],
[
"Mannarelli",
"Massimo",
""
],
[
"Trabucco",
"Silvia",
""
]
] | A transonic fluid flow generates an acoustic hole that is the hydrodynamic analogue of a gravitational black hole. Acoustic holes emit a detectable thermal radiation of phonons at a characteristic Hawking temperature. The crucial concept is that the spontaneous phonon emission at the horizon produces an irreversible he... |
0909.2027 | Richard Dowdall Mr | R. Dowdall, Henrique Gomes, Frank Hellmann | Asymptotic analysis of the Ponzano-Regge model for handlebodies | 27 pages, multiple figures | J. Phys. A: Math. Theor. 43 115203 (2010) | 10.1088/1751-8113/43/11/115203 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Using the coherent state techniques developed for the analysis of the EPRL
model we give the asymptotic formula for the Ponzano-Regge model amplitude for
non-tardis triangulations of handlebodies in the limit of large boundary spins.
The formula produces a sum over all possible immersions of the boundary
triangulatio... | [
{
"created": "Thu, 10 Sep 2009 19:55:44 GMT",
"version": "v1"
}
] | 2012-01-23 | [
[
"Dowdall",
"R.",
""
],
[
"Gomes",
"Henrique",
""
],
[
"Hellmann",
"Frank",
""
]
] | Using the coherent state techniques developed for the analysis of the EPRL model we give the asymptotic formula for the Ponzano-Regge model amplitude for non-tardis triangulations of handlebodies in the limit of large boundary spins. The formula produces a sum over all possible immersions of the boundary triangulation ... |
2307.06282 | Dmitri Gal'tsov | G\'erard Cl\'ement and Dmitry Gal'tsov | The first law for stationary axisymmetric multi-black hole systems | 14 pages Latex, published version | Physics Letters B 845 (2023) 138152 | 10.1016/j.physletb.2023.138152 | LAPTH-022/23 | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In the framework of Einstein-Maxwell theory, we consider collinear arrays of
rotating electrically charged black holes connected by Misner-Dirac strings
carrying gravimagnetic and magnetic fluxes. The first law of mechanics for
these systems is derived. It involves as dynamical variables the areas, angular
momenta an... | [
{
"created": "Wed, 12 Jul 2023 16:23:35 GMT",
"version": "v1"
},
{
"created": "Thu, 13 Jul 2023 16:03:41 GMT",
"version": "v2"
},
{
"created": "Wed, 6 Sep 2023 21:24:53 GMT",
"version": "v3"
}
] | 2023-09-08 | [
[
"Clément",
"Gérard",
""
],
[
"Gal'tsov",
"Dmitry",
""
]
] | In the framework of Einstein-Maxwell theory, we consider collinear arrays of rotating electrically charged black holes connected by Misner-Dirac strings carrying gravimagnetic and magnetic fluxes. The first law of mechanics for these systems is derived. It involves as dynamical variables the areas, angular momenta and ... |
2302.10582 | Stav Zalel | Stav Zalel | Covariant Growth Dynamics | Invited chapter for the Handbook of Quantum Gravity (Eds. C. Bambi,
L. Modesto and I. L. Shapiro, Springer, to be published in 2023) | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The spacetime discreteness of causal set theory has enabled the formulation
of novel spacetime dynamics. In these so-called "growth" dynamics, a causal set
spacetime is generated probabilistically by means of a random walk on certain
tree structures. The first growth dynamics - the Classical Sequential Growth
models ... | [
{
"created": "Tue, 21 Feb 2023 10:20:49 GMT",
"version": "v1"
}
] | 2023-02-22 | [
[
"Zalel",
"Stav",
""
]
] | The spacetime discreteness of causal set theory has enabled the formulation of novel spacetime dynamics. In these so-called "growth" dynamics, a causal set spacetime is generated probabilistically by means of a random walk on certain tree structures. The first growth dynamics - the Classical Sequential Growth models - ... |
2208.13176 | Anisur Rahaman | Sohan Kumar Jha and Anisur Rahaman | Superradiance scattering off rotating Simpson-Visser black hole and its
shadow in the non-commutative setting | 24 pages latex with 23 figures | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider non-commutating Simpson-Visser spacetime and study the
superradiance phenomena and the shadow cast by the back hole associated with
this modified spacetime. We extensively study the different aspects of the
black hole associated with the metric endowed with the corrections linked with
non-commutative prop... | [
{
"created": "Sun, 28 Aug 2022 08:57:43 GMT",
"version": "v1"
}
] | 2022-08-30 | [
[
"Jha",
"Sohan Kumar",
""
],
[
"Rahaman",
"Anisur",
""
]
] | We consider non-commutating Simpson-Visser spacetime and study the superradiance phenomena and the shadow cast by the back hole associated with this modified spacetime. We extensively study the different aspects of the black hole associated with the metric endowed with the corrections linked with non-commutative proper... |
gr-qc/0405112 | D.V. Ahluwalia-Khalilova | D. V. Ahluwalia-Khalilova | Charge conjugation and Lense-Thirring Effect: A new Asymmetry | Third Prize Gravity Research Foundation Essay (2004) | Int.J.Mod.Phys.D13:2361-2367,2004; Gen.Rel.Grav.36:2581-2587,2004 | 10.1142/S0218271804006668 10.1023/B:GERG.0000048978.90335.95 | ASGBG/CIU Preprint: 21.03.2004A | gr-qc astro-ph hep-ph hep-th | null | This essay presents a new asymmetry that arises from the interplay of charge
conjugation and Lense-Thirring effect. When applied to Majorana neutrinos, the
effects predicts nu_e <-> overline{nu}_e oscillations in gravitational
environments with rotating sources. Parameters associated with astrophysical
environments i... | [
{
"created": "Thu, 20 May 2004 00:42:32 GMT",
"version": "v1"
}
] | 2014-11-17 | [
[
"Ahluwalia-Khalilova",
"D. V.",
""
]
] | This essay presents a new asymmetry that arises from the interplay of charge conjugation and Lense-Thirring effect. When applied to Majorana neutrinos, the effects predicts nu_e <-> overline{nu}_e oscillations in gravitational environments with rotating sources. Parameters associated with astrophysical environments ind... |
0707.0058 | Arun Kenath Mr | C. Sivaram (1) ((1) Indian Institute of Astrophysics) | What is Special About the Planck Mass? | 19 pages, 27 equations | null | null | null | gr-qc | null | Planck introduced his famous units of mass, length and time a hundred years
ago. The many interesting facets of the Planck mass and length are explored.
The Planck mass ubiquitously occurs in astrophysics, cosmology, quantum
gravity, string theory, etc. Current aspects of its implications for
unification of fundament... | [
{
"created": "Sat, 30 Jun 2007 11:34:54 GMT",
"version": "v1"
}
] | 2007-07-03 | [
[
"Sivaram",
"C.",
"",
"Indian Institute of Astrophysics"
]
] | Planck introduced his famous units of mass, length and time a hundred years ago. The many interesting facets of the Planck mass and length are explored. The Planck mass ubiquitously occurs in astrophysics, cosmology, quantum gravity, string theory, etc. Current aspects of its implications for unification of fundamental... |
2402.01487 | Jibril Ben Achour | Jibril Ben Achour, Mohammad Ali Gorji and Hugo Roussille | Disformal gravitational waves | 4 pages, 1 figure | null | null | null | gr-qc hep-th | http://creativecommons.org/licenses/by/4.0/ | Contrary to conformal transformations, disformal transformations can change
the principal null directions of a spacetime geometry. Thus, depending on the
frame a gravitational wave (GW) detector minimally couples to, the properties
of GWs may change. In this letter, we provide necessary and sufficient
conditions whic... | [
{
"created": "Fri, 2 Feb 2024 15:14:41 GMT",
"version": "v1"
},
{
"created": "Mon, 19 Feb 2024 13:38:55 GMT",
"version": "v2"
}
] | 2024-02-20 | [
[
"Achour",
"Jibril Ben",
""
],
[
"Gorji",
"Mohammad Ali",
""
],
[
"Roussille",
"Hugo",
""
]
] | Contrary to conformal transformations, disformal transformations can change the principal null directions of a spacetime geometry. Thus, depending on the frame a gravitational wave (GW) detector minimally couples to, the properties of GWs may change. In this letter, we provide necessary and sufficient conditions which ... |
1201.3510 | H{\aa}kan Andr\'easson | H{\aa}kan Andr\'easson | Black hole formation from a complete regular past for collisionless
matter | 30 pages. Revised version to appear in Annales Henri Poincar\'e | Ann. Henri Poincar\'{e} 13, 1511-1536 (2012) | 10.1007/s00023-012-0164-1 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Initial data for the spherically symmetric Einstein-Vlasov system is
constructed whose past evolution is regular and whose future evolution contains
a black hole. This is the first example of initial data with these properties
for the Einstein-matter system with a "realistic" matter model. One consequence
of the resu... | [
{
"created": "Tue, 17 Jan 2012 13:43:55 GMT",
"version": "v1"
},
{
"created": "Mon, 23 Jan 2012 20:56:13 GMT",
"version": "v2"
},
{
"created": "Fri, 2 Mar 2012 08:28:05 GMT",
"version": "v3"
}
] | 2015-06-03 | [
[
"Andréasson",
"Håkan",
""
]
] | Initial data for the spherically symmetric Einstein-Vlasov system is constructed whose past evolution is regular and whose future evolution contains a black hole. This is the first example of initial data with these properties for the Einstein-matter system with a "realistic" matter model. One consequence of the result... |
2112.00338 | Bikram Ghosh | Bikram Ghosh, Sourav Dutta, Sudeshna Mukerji and Subenoy Chakraborty | Static spherically symmetric wormhole with quadratic shape function and
particle trajectories around it | null | Int.J.Mod.Phys.A 36 (2021) 06, 2150046 | 10.1142/S0217751X21500469 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The paper deals with static traversable wormhole having shape function a
polynomial of the radial coordinate of degree 2. Embedding of the wormholes in
space-time is examined both analytically and graphically. Also both timelike
and null geodesics are studied in this wormhole geometry.
| [
{
"created": "Wed, 1 Dec 2021 08:13:39 GMT",
"version": "v1"
},
{
"created": "Thu, 2 Dec 2021 08:49:51 GMT",
"version": "v2"
}
] | 2021-12-03 | [
[
"Ghosh",
"Bikram",
""
],
[
"Dutta",
"Sourav",
""
],
[
"Mukerji",
"Sudeshna",
""
],
[
"Chakraborty",
"Subenoy",
""
]
] | The paper deals with static traversable wormhole having shape function a polynomial of the radial coordinate of degree 2. Embedding of the wormholes in space-time is examined both analytically and graphically. Also both timelike and null geodesics are studied in this wormhole geometry. |
gr-qc/0605102 | Matthew Anderson | Matthew Anderson, Eric Hirschmann, Steven L. Liebling, David Neilsen | Relativistic MHD with Adaptive Mesh Refinement | 24 pages, 14 figures, 3 tables | Class.Quant.Grav. 23 (2006) 6503-6524 | 10.1088/0264-9381/23/22/025 | null | gr-qc | null | This paper presents a new computer code to solve the general relativistic
magnetohydrodynamics (GRMHD) equations using distributed parallel adaptive mesh
refinement (AMR). The fluid equations are solved using a finite difference
Convex ENO method (CENO) in 3+1 dimensions, and the AMR is Berger-Oliger.
Hyperbolic dive... | [
{
"created": "Wed, 17 May 2006 21:50:01 GMT",
"version": "v1"
},
{
"created": "Wed, 11 Oct 2006 20:18:32 GMT",
"version": "v2"
}
] | 2009-11-11 | [
[
"Anderson",
"Matthew",
""
],
[
"Hirschmann",
"Eric",
""
],
[
"Liebling",
"Steven L.",
""
],
[
"Neilsen",
"David",
""
]
] | This paper presents a new computer code to solve the general relativistic magnetohydrodynamics (GRMHD) equations using distributed parallel adaptive mesh refinement (AMR). The fluid equations are solved using a finite difference Convex ENO method (CENO) in 3+1 dimensions, and the AMR is Berger-Oliger. Hyperbolic diverg... |
1804.05360 | Jian-Yang Zhu | Xi-Bin Li, Yang-Yang Wang, He Wang and Jian-Yang Zhu | Dynamic analysis of noncanonical warm inflation | 13 pages, 11 figures | Phys. Rev. D 98, 043510 (2018) | 10.1103/PhysRevD.98.043510 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study and analyze the dynamic properties of both canonical and
noncanonical warm inflationary models with dissipative effects. We consider
different models of canonical warm inflation with different dissipative
coefficients and prove that the behavior at infinity of quadratic dissipative
model distinctly differs f... | [
{
"created": "Sun, 15 Apr 2018 13:56:03 GMT",
"version": "v1"
},
{
"created": "Thu, 23 Aug 2018 09:43:34 GMT",
"version": "v2"
}
] | 2018-08-24 | [
[
"Li",
"Xi-Bin",
""
],
[
"Wang",
"Yang-Yang",
""
],
[
"Wang",
"He",
""
],
[
"Zhu",
"Jian-Yang",
""
]
] | We study and analyze the dynamic properties of both canonical and noncanonical warm inflationary models with dissipative effects. We consider different models of canonical warm inflation with different dissipative coefficients and prove that the behavior at infinity of quadratic dissipative model distinctly differs fro... |
1407.0259 | Jeffrey Winicour | J. Winicour | Global aspects of radiation memory | Final version to be published in Class. Quantum Grav | Class. Quantum Grav. v. 31, p. 205003 (2014) | 10.1088/0264-9381/31/20/205003 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Gravitational radiation has a memory effect represented by a net change in
the relative positions of test particles. Both the linear and nonlinear sources
proposed for this radiation memory are of the "electric" type, or E mode, as
characterized by the even parity of the polarization pattern. Although
"magnetic" type... | [
{
"created": "Tue, 1 Jul 2014 14:37:39 GMT",
"version": "v1"
},
{
"created": "Sat, 11 Oct 2014 14:21:41 GMT",
"version": "v2"
}
] | 2015-06-22 | [
[
"Winicour",
"J.",
""
]
] | Gravitational radiation has a memory effect represented by a net change in the relative positions of test particles. Both the linear and nonlinear sources proposed for this radiation memory are of the "electric" type, or E mode, as characterized by the even parity of the polarization pattern. Although "magnetic" type, ... |
gr-qc/0004078 | Pedro Gonzalez | Pedro F. Gonzalez-Diaz (IMAFF, CSIC, Madrid) | Misner-brane cosmology | 10 pages, LaTex, comments added to improve clarity; basic physical
results unaltered | Phys.Lett. B486 (2000) 158-164 | 10.1016/S0370-2693(00)00744-9 | IMAFF-RCA-00-06 | gr-qc | null | A brane universe derived from the Randall-Sundrum models is considered in
which an additional Misner-like periodicity is introduced in the extra
direction. This model solves the ambiguity in the choice of the brane world by
identifying the branes with opposite tensions, in such a way that if one enters
the brane with... | [
{
"created": "Thu, 27 Apr 2000 11:09:03 GMT",
"version": "v1"
},
{
"created": "Thu, 1 Jun 2000 16:31:40 GMT",
"version": "v2"
}
] | 2009-10-31 | [
[
"Gonzalez-Diaz",
"Pedro F.",
"",
"IMAFF, CSIC, Madrid"
]
] | A brane universe derived from the Randall-Sundrum models is considered in which an additional Misner-like periodicity is introduced in the extra direction. This model solves the ambiguity in the choice of the brane world by identifying the branes with opposite tensions, in such a way that if one enters the brane with p... |
0910.0306 | Muhammad Sharif | M. Sharif and Sumaira Taj | Energy Contents of Some Non-Vacuum Spacetimes in Teleparallel Gravity | 20 pages, accepted for publication in Astrophysics and Space Science | Astrophys.Space Sci.325:75-83,2010 | 10.1007/s10509-009-0158-8 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | This paper elaborates the problem of energy-momentum in the framework of
teleparallel equivalent of General Relativity. For this purpose, we consider
energy-momentum prescription derived from the integral form of the constraint
equations developed in the Hamiltonian formulation of the teleparallel
equivalent of Gener... | [
{
"created": "Fri, 2 Oct 2009 01:55:04 GMT",
"version": "v1"
}
] | 2010-01-07 | [
[
"Sharif",
"M.",
""
],
[
"Taj",
"Sumaira",
""
]
] | This paper elaborates the problem of energy-momentum in the framework of teleparallel equivalent of General Relativity. For this purpose, we consider energy-momentum prescription derived from the integral form of the constraint equations developed in the Hamiltonian formulation of the teleparallel equivalent of General... |
gr-qc/9909002 | Sang Pyo Kim | Sang Pyo Kim | Canonical Quantization of a Closed Euclidean Universe with a
Cosmological Constant | RevTex 14 pages, no figure; The title is slightly changed because the
closed Euclidean universe can be matched at a finite radius with a closed
Lorentzian universe but not with an open Lorentzian universe. The matching
condition at the finite radius is clarified | J.KoreanPhys.Soc.38:427-434,2001 | null | null | gr-qc | null | We study canonical quantization of a closed Euclidean universe with a
cosmological constant and a massless scalar field. The closed Euclidean
universe with an ordinary matter state can be matched at a finite radius only
with the closed Lorentzian universe with the Wick-rotated exotic state. The
exotic state provides ... | [
{
"created": "Tue, 31 Aug 1999 23:41:09 GMT",
"version": "v1"
},
{
"created": "Sat, 6 May 2000 07:12:52 GMT",
"version": "v2"
}
] | 2008-11-26 | [
[
"Kim",
"Sang Pyo",
""
]
] | We study canonical quantization of a closed Euclidean universe with a cosmological constant and a massless scalar field. The closed Euclidean universe with an ordinary matter state can be matched at a finite radius only with the closed Lorentzian universe with the Wick-rotated exotic state. The exotic state provides th... |
1606.03243 | Alexander Kamenshchik | Leonardo Giani and Alexander Yu. Kamenshchik | Ho\v{r}ava-Lifshitz gravity inspired Bianchi-II cosmology and the
mixmaster universe | 25 pages, final version to appear in Classical and Quantum Gravity,
the title is changed and two sections are added | null | 10.1088/1361-6382/aa64b5 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study different aspects of the Ho\v{r}ava-Lifshitz inspired Bianchi-II
cosmology and its relations with the mixmaster universe model. First, we
present exact solutions for a toy model, where only the cubic in spatial
curvature terms are present in the action; then we briefly discuss some exotic
singularities, whic... | [
{
"created": "Fri, 10 Jun 2016 09:30:51 GMT",
"version": "v1"
},
{
"created": "Mon, 6 Mar 2017 16:07:27 GMT",
"version": "v2"
}
] | 2017-03-29 | [
[
"Giani",
"Leonardo",
""
],
[
"Kamenshchik",
"Alexander Yu.",
""
]
] | We study different aspects of the Ho\v{r}ava-Lifshitz inspired Bianchi-II cosmology and its relations with the mixmaster universe model. First, we present exact solutions for a toy model, where only the cubic in spatial curvature terms are present in the action; then we briefly discuss some exotic singularities, which ... |
gr-qc/9406045 | Stephen P. Braham | Stephen P. Braham | Hypertime Formalism for Spherically Symmetric Black Holes and Wormholes | 14pp, LaTeX, QMW-Maths-1994-SPB-1 | Phys.Rev.D51:536-543,1995 | 10.1103/PhysRevD.51.536 | null | gr-qc hep-th | null | Recent work on an approach to the geometrodynamics of cylindrical gravity
waves in the presence of interacting scalar matter fields, based on the
Kucha\v{r} hypertime formalism, is extended to the analogous spherically
symmetric system. This produces a geometrodynamical formalism for spherical
black holes and wormhol... | [
{
"created": "Mon, 27 Jun 1994 14:13:18 GMT",
"version": "v1"
}
] | 2010-11-01 | [
[
"Braham",
"Stephen P.",
""
]
] | Recent work on an approach to the geometrodynamics of cylindrical gravity waves in the presence of interacting scalar matter fields, based on the Kucha\v{r} hypertime formalism, is extended to the analogous spherically symmetric system. This produces a geometrodynamical formalism for spherical black holes and wormholes... |
1606.00352 | Marco de Cesare | Marco de Cesare, Andreas G. A. Pithis, Mairi Sakellariadou | Cosmological implications of interacting Group Field Theory models:
cyclic Universe and accelerated expansion | 11 pages, 6 figures | Phys. Rev. D 94, 064051 (2016) | 10.1103/PhysRevD.94.064051 | KCL-PH-TH/2016-32 | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the cosmological implications of interactions between spacetime
quanta in the Group Field Theory (GFT) approach to Quantum Gravity from a
phenomenological perspective. Our work represents a first step towards
understanding Early Universe Cosmology by studying the dynamics of the emergent
continuum spacetime,... | [
{
"created": "Wed, 1 Jun 2016 16:40:10 GMT",
"version": "v1"
},
{
"created": "Fri, 30 Sep 2016 14:35:24 GMT",
"version": "v2"
}
] | 2016-10-03 | [
[
"de Cesare",
"Marco",
""
],
[
"Pithis",
"Andreas G. A.",
""
],
[
"Sakellariadou",
"Mairi",
""
]
] | We study the cosmological implications of interactions between spacetime quanta in the Group Field Theory (GFT) approach to Quantum Gravity from a phenomenological perspective. Our work represents a first step towards understanding Early Universe Cosmology by studying the dynamics of the emergent continuum spacetime, a... |
1610.06178 | Toby Wiseman | Pau Figueras and Toby Wiseman | On the existence of stationary Ricci solitons | 15 pages, no figures | null | 10.1088/1361-6382/aa764a | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Previously the DeTurck 'trick' has been used to render the stationary
Einstein's equation a well posed elliptic system that may be solved numerically
by geometric flow or directly. Whilst in the static case for pure gravity with
zero or negative cosmological constant there is a simple proof that solving the
modified ... | [
{
"created": "Wed, 19 Oct 2016 20:00:02 GMT",
"version": "v1"
}
] | 2017-07-05 | [
[
"Figueras",
"Pau",
""
],
[
"Wiseman",
"Toby",
""
]
] | Previously the DeTurck 'trick' has been used to render the stationary Einstein's equation a well posed elliptic system that may be solved numerically by geometric flow or directly. Whilst in the static case for pure gravity with zero or negative cosmological constant there is a simple proof that solving the modified "h... |
gr-qc/0611141 | Domenico Giulini | Domenico Giulini and Claus Kiefer | The Canonical Approach to Quantum Gravity: General Ideas and
Geometrodynamics | 21 pages, 6 figures. Contribution to E. Seiler and I.-O. Stamatescu
(editors): `Approaches To Fundamental Physics -- An Assessment Of Current
Theoretical Ideas' (Springer Verlag, to appear) | Lect.NotesPhys.721:131-150,2007 | 10.1007/978-3-540-71117-9_8 | Freiburg THEP-06/18 | gr-qc | null | We give an introduction to the canonical formalism of Einstein's theory of
general relativity. This then serves as the starting point for one approach to
quantum gravity called quantum geometrodynamics. The main features and
applications of this approach are briefly summarized.
| [
{
"created": "Mon, 27 Nov 2006 14:45:04 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Giulini",
"Domenico",
""
],
[
"Kiefer",
"Claus",
""
]
] | We give an introduction to the canonical formalism of Einstein's theory of general relativity. This then serves as the starting point for one approach to quantum gravity called quantum geometrodynamics. The main features and applications of this approach are briefly summarized. |
2104.08049 | Aaron Held | Sebastian Garcia-Saenz, Aaron Held, Jun Zhang | Destabilization of black holes and stars by generalized Proca fields | main text has been updated to agree with the published version | Phys. Rev. Lett. 127, 131104 (2021) | 10.1103/PhysRevLett.127.131104 | Imperial/TP/2021/SGS/01 | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We demonstrate that black holes and stars in general relativity can be
destabilized by perturbations of non-minimally coupled vector fields. Focusing
on static and spherically symmetric backgrounds, our analysis shows that black
holes with sufficiently small mass and stars with sufficiently high densities
are subject... | [
{
"created": "Fri, 16 Apr 2021 11:52:34 GMT",
"version": "v1"
},
{
"created": "Thu, 14 Oct 2021 21:45:14 GMT",
"version": "v2"
}
] | 2021-10-18 | [
[
"Garcia-Saenz",
"Sebastian",
""
],
[
"Held",
"Aaron",
""
],
[
"Zhang",
"Jun",
""
]
] | We demonstrate that black holes and stars in general relativity can be destabilized by perturbations of non-minimally coupled vector fields. Focusing on static and spherically symmetric backgrounds, our analysis shows that black holes with sufficiently small mass and stars with sufficiently high densities are subject t... |
2109.13896 | Andre Landulfo | Ian Bernardes Barcellos and Andre G. S. Landulfo | Relativistic Quantum Communication: Energy cost and channel capacities | 15 pages, 5 figures | Phys. Rev. D 104, 105018 (2021) | 10.1103/PhysRevD.104.105018 | null | gr-qc hep-th quant-ph | http://creativecommons.org/licenses/by/4.0/ | We consider the communication of classical and quantum information between
two arbitrary observers in asymptotically flat spacetimes (possibly containing
black holes) and investigate what is the energy cost for such information
transmission. By means of localized two-level quantum systems, sender and
receiver can use... | [
{
"created": "Tue, 28 Sep 2021 17:47:53 GMT",
"version": "v1"
}
] | 2021-12-17 | [
[
"Barcellos",
"Ian Bernardes",
""
],
[
"Landulfo",
"Andre G. S.",
""
]
] | We consider the communication of classical and quantum information between two arbitrary observers in asymptotically flat spacetimes (possibly containing black holes) and investigate what is the energy cost for such information transmission. By means of localized two-level quantum systems, sender and receiver can use a... |
1005.1570 | Hristu Culetu | Hristu Culetu | On the conversion of rest energy in horizon energy | 9 pages, no figures, minor changes, two refs added | null | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | It is shown that the Verlinde formula for the entropy variation of a
holographic screen is a consequence of the conversion of the particle energy in
horizon energy. The special role played by the particular displacement $\Delta
x = c^{2}/a$ is emphasized, $a$ being the particle acceleration. Using the
Heisenberg Prin... | [
{
"created": "Mon, 10 May 2010 14:56:36 GMT",
"version": "v1"
},
{
"created": "Mon, 6 Dec 2010 13:29:12 GMT",
"version": "v2"
},
{
"created": "Tue, 15 Mar 2011 21:45:44 GMT",
"version": "v3"
}
] | 2011-03-17 | [
[
"Culetu",
"Hristu",
""
]
] | It is shown that the Verlinde formula for the entropy variation of a holographic screen is a consequence of the conversion of the particle energy in horizon energy. The special role played by the particular displacement $\Delta x = c^{2}/a$ is emphasized, $a$ being the particle acceleration. Using the Heisenberg Princi... |
1411.7479 | Chul-Moon Yoo | Norihiro Tanahashi and Chul-Moon Yoo | Spherical Domain Wall Collapse in a Dust Universe | 26 pages, 9 figures, estimate of black hole mass is corrected | null | 10.1088/0264-9381/32/15/155003 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | To clarify observational consequence of bubble nucleations in inflationary
era, we analyse dynamics of a spherical domain wall in an expanding universe.
We consider a spherical shell of the domain wall with tension $\sigma$
collapsing in a spherically-symmetric dust universe, which is initially
separated into the ope... | [
{
"created": "Thu, 27 Nov 2014 06:27:39 GMT",
"version": "v1"
},
{
"created": "Wed, 13 May 2015 08:06:55 GMT",
"version": "v2"
}
] | 2015-08-06 | [
[
"Tanahashi",
"Norihiro",
""
],
[
"Yoo",
"Chul-Moon",
""
]
] | To clarify observational consequence of bubble nucleations in inflationary era, we analyse dynamics of a spherical domain wall in an expanding universe. We consider a spherical shell of the domain wall with tension $\sigma$ collapsing in a spherically-symmetric dust universe, which is initially separated into the open ... |
gr-qc/9603061 | Simonetta Frittelli | S. Frittelli (1), C. N. Kozameh (2), E. T. Newman (1), C. Rovelli (1),
R. S. Tate (1) ((1) University of Pittsburgh, PA, USA, (2) FAMAF, Argentina) | Fuzzy spacetime from a null-surface version of GR | 17 pages, LateX, iopl styles (ioplppt.sty, iopl12.sty), amssym.def,
amssym.tex. Invited contribution to the Class. Quantum Grav. special issue
dedicated to Andrzej Trautman | Class.Quant.Grav.14:A143-A154,1997 | 10.1088/0264-9381/14/1A/012 | null | gr-qc | null | The null-surface formulation of general relativity -- recently introduced --
provides novel tools for describing the gravitational field, as well as a fresh
physical way of viewing it. The new formulation provides ``local'' observables
corresponding to the coordinates of points --- which constitute the spacetime
mani... | [
{
"created": "Fri, 29 Mar 1996 21:20:10 GMT",
"version": "v1"
}
] | 2010-04-06 | [
[
"Frittelli",
"S.",
"",
"University of Pittsburgh, PA, USA"
],
[
"Kozameh",
"C. N.",
"",
"FAMAF, Argentina"
],
[
"Newman",
"E. T.",
"",
"University of Pittsburgh, PA, USA"
],
[
"Rovelli",
"C.",
"",
"University of Pittsburgh, PA, USA"
],
... | The null-surface formulation of general relativity -- recently introduced -- provides novel tools for describing the gravitational field, as well as a fresh physical way of viewing it. The new formulation provides ``local'' observables corresponding to the coordinates of points --- which constitute the spacetime manifo... |
2103.06423 | Luis O. Pimentel | Luis O. Pimentel and Flavio Pineda | Particle Creation in some LRS Bianchi I models | 15 pages | null | 10.1007/s10714-021-02828-w | null | gr-qc hep-th | http://creativecommons.org/licenses/by/4.0/ | In this work we consider particle creation by the expansion of the universe,
using two Bianchi type I anisotropic models. The particles studied are of spin
0 and 1/2. The cosmological models have rotational symmetry, which allows us to
solve exactly the equations of motion. The number density of the created
particles... | [
{
"created": "Thu, 11 Mar 2021 03:02:47 GMT",
"version": "v1"
}
] | 2021-07-07 | [
[
"Pimentel",
"Luis O.",
""
],
[
"Pineda",
"Flavio",
""
]
] | In this work we consider particle creation by the expansion of the universe, using two Bianchi type I anisotropic models. The particles studied are of spin 0 and 1/2. The cosmological models have rotational symmetry, which allows us to solve exactly the equations of motion. The number density of the created particles i... |
2302.04766 | Soham Sen | Sunandan Gangopadhyay, Soham Sen and Rituparna Mandal | Interference and reflection from the event horizon of a quantum
corrected black hole | This manuscript is accepted for publication is Europhysics Letters | Euro. Phys. Lett. 141 (2023) 49001 | 10.1209/0295-5075/acb80f | null | gr-qc hep-th | http://creativecommons.org/licenses/by/4.0/ | In this work, we calculate the Hawking temperature for a quantum corrected
black hole geometry using the $reflection$ $from$ $the$ $horizon$ method. We
observe that quantum gravity corrections indeed show up in the Hawking
temperature formula of the quantum corrected black hole. It is important to
notice that the qua... | [
{
"created": "Thu, 9 Feb 2023 16:59:44 GMT",
"version": "v1"
},
{
"created": "Fri, 10 Feb 2023 19:23:05 GMT",
"version": "v2"
}
] | 2023-02-14 | [
[
"Gangopadhyay",
"Sunandan",
""
],
[
"Sen",
"Soham",
""
],
[
"Mandal",
"Rituparna",
""
]
] | In this work, we calculate the Hawking temperature for a quantum corrected black hole geometry using the $reflection$ $from$ $the$ $horizon$ method. We observe that quantum gravity corrections indeed show up in the Hawking temperature formula of the quantum corrected black hole. It is important to notice that the quant... |
0911.2997 | Jurjen Koksma | J.F. Koksma (Utrecht University) | Dynamics driven by the Trace Anomaly in FLRW Universes | Conference proceedings of the "Invisible Universe Conference" in
Paris (2009) | AIP Conf.Proc.1241:967-972,2010 | 10.1063/1.3462742 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | By means of a semiclassical analysis we show that the trace anomaly does not
affect the cosmological constant. We calculate the evolution of the Hubble
parameter in quasi de Sitter spacetime, where the Hubble parameter varies
slowly in time, and in FLRW spacetimes. We show dynamically that a Universe
consisting of ma... | [
{
"created": "Mon, 16 Nov 2009 10:31:40 GMT",
"version": "v1"
}
] | 2014-11-20 | [
[
"Koksma",
"J. F.",
"",
"Utrecht University"
]
] | By means of a semiclassical analysis we show that the trace anomaly does not affect the cosmological constant. We calculate the evolution of the Hubble parameter in quasi de Sitter spacetime, where the Hubble parameter varies slowly in time, and in FLRW spacetimes. We show dynamically that a Universe consisting of matt... |
1903.03651 | Vojtech Witzany | Vojt\v{e}ch Witzany | Hamilton-Jacobi equation for spinning particles near black holes | Published in Phys. Rev. D | Phys. Rev. D 100, 104030 (2019) | 10.1103/PhysRevD.100.104030 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A compact stellar-mass object inspiralling onto a massive black hole deviates
from geodesic motion due to radiation-reaction forces as well as finite-size
effects. Such post-geodesic deviations need to be included with sufficient
precision into wave-form models for the upcoming space-based gravitational-wave
detector... | [
{
"created": "Fri, 8 Mar 2019 20:04:59 GMT",
"version": "v1"
},
{
"created": "Thu, 21 Nov 2019 16:39:33 GMT",
"version": "v2"
}
] | 2019-11-22 | [
[
"Witzany",
"Vojtěch",
""
]
] | A compact stellar-mass object inspiralling onto a massive black hole deviates from geodesic motion due to radiation-reaction forces as well as finite-size effects. Such post-geodesic deviations need to be included with sufficient precision into wave-form models for the upcoming space-based gravitational-wave detector L... |
gr-qc/0203106 | L. Villain | L. Villain and S. Bonazzola (LUTH / CNRS/ Observatoire de Paris) | Inertial modes in slowly rotating stars : an evolutionary description | 36 pages, 27 figures, accepted for publication in Phys. Rev. D
(discussion added in the introduction) | Phys.Rev. D66 (2002) 123001 | 10.1103/PhysRevD.66.123001 | null | gr-qc astro-ph | null | We present a new hydro code based on spectral methods using spherical
coordinates. The first version of this code aims at studying time evolution of
inertial modes in slowly rotating neutron stars. In this article, we introduce
the anelastic approximation, developed in atmospheric physics, using the mass
conservation... | [
{
"created": "Thu, 28 Mar 2002 16:37:46 GMT",
"version": "v1"
},
{
"created": "Tue, 17 Sep 2002 14:04:25 GMT",
"version": "v2"
}
] | 2009-11-07 | [
[
"Villain",
"L.",
"",
"LUTH / CNRS/ Observatoire de Paris"
],
[
"Bonazzola",
"S.",
"",
"LUTH / CNRS/ Observatoire de Paris"
]
] | We present a new hydro code based on spectral methods using spherical coordinates. The first version of this code aims at studying time evolution of inertial modes in slowly rotating neutron stars. In this article, we introduce the anelastic approximation, developed in atmospheric physics, using the mass conservation e... |
0903.3806 | Debashis Gangopadhyay | Debashis Gangopadhyay | Estimating Temperature Fluctuations in the Early Universe | 8 pages, Revtex, title,abstract and format changed for journal
publication,no change in basic results, clarifications and a figure added.
Keywords: physics of the early universe,inflation, dark matter theory, dark
energy theory. PACS: 95.35.+d ; 95.36.+x ; 98.80.Cq ; 98.80.-k | Grav.Cosmol.16:231-238,2010 | 10.1134/S0202289310030072 | null | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A lagrangian for the $k-$ essence field is constructed for a constant scalar
potential and its form determined when the scale factor was very small compared
to the present epoch but very large compared to the inflationary epoch. This
means that one is already in an expanding and flat universe. The form is
similar to ... | [
{
"created": "Mon, 23 Mar 2009 08:20:30 GMT",
"version": "v1"
},
{
"created": "Mon, 28 Jun 2010 10:17:41 GMT",
"version": "v2"
}
] | 2014-11-18 | [
[
"Gangopadhyay",
"Debashis",
""
]
] | A lagrangian for the $k-$ essence field is constructed for a constant scalar potential and its form determined when the scale factor was very small compared to the present epoch but very large compared to the inflationary epoch. This means that one is already in an expanding and flat universe. The form is similar to th... |
1305.1789 | Adam Pound | Adam Pound | Second-order gravitational self-force -- a quick summary | 3 pages, contribution to the proceedings of the 13th Marcel Grossman
Meeting, summarizes and discusses material in 1201.5089 and 1206.6538 | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In order to extract physical parameters from the waveform of an
extreme-mass-ratio binary, one requires a second-order--accurate description of
the motion of the smaller of the two objects in the binary. Using a method of
matched asymptotic expansions, I derive the second-order equation of motion of
a small, nearly s... | [
{
"created": "Wed, 8 May 2013 12:07:11 GMT",
"version": "v1"
}
] | 2013-05-09 | [
[
"Pound",
"Adam",
""
]
] | In order to extract physical parameters from the waveform of an extreme-mass-ratio binary, one requires a second-order--accurate description of the motion of the smaller of the two objects in the binary. Using a method of matched asymptotic expansions, I derive the second-order equation of motion of a small, nearly sph... |
1012.3060 | Dmitri Gal'tsov | Dmitri V. Gal'tsov, Yuri V. Grats and Alexander A. Matiukhin | Lorentz-covariant perturbation theory for relativistic gravitational
bremsstrahlung | This text is English translation of the Moscow State University
preprint issued in Russian in 1980 | null | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We formulate Lorentz-covariant classical perturbation theory to deal with
relativistic bremsstrahlung under gravitational scattering. Our approach is a
version of the fast motion approximation scheme, the main novelty being the use
of the momentum space representation. Using it we calculate in a closed form
the spect... | [
{
"created": "Tue, 14 Dec 2010 15:33:56 GMT",
"version": "v1"
}
] | 2010-12-15 | [
[
"Gal'tsov",
"Dmitri V.",
""
],
[
"Grats",
"Yuri V.",
""
],
[
"Matiukhin",
"Alexander A.",
""
]
] | We formulate Lorentz-covariant classical perturbation theory to deal with relativistic bremsstrahlung under gravitational scattering. Our approach is a version of the fast motion approximation scheme, the main novelty being the use of the momentum space representation. Using it we calculate in a closed form the spectru... |
1402.3806 | Amy Thompson | Amy Thompson, Joe Swearngin, Dirk Bouwmeester | Linked and Knotted Gravitational Radiation | 11 pages, 4 figures | J. Phys. A: Math. Theor. 47, 355205 (2014) | 10.1088/1751-8113/47/35/355205 | null | gr-qc math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We show that the torus knot topology is inherent in electromagnetic and
gravitational radiation by constructing spin-$N$ fields based on this topology
from the elementary states of twistor theory. The twistor functions
corresponding to the elementary states admit a parameterization in terms of the
poloidal and toroid... | [
{
"created": "Sun, 16 Feb 2014 14:57:43 GMT",
"version": "v1"
},
{
"created": "Fri, 15 Aug 2014 13:48:26 GMT",
"version": "v2"
}
] | 2014-08-21 | [
[
"Thompson",
"Amy",
""
],
[
"Swearngin",
"Joe",
""
],
[
"Bouwmeester",
"Dirk",
""
]
] | We show that the torus knot topology is inherent in electromagnetic and gravitational radiation by constructing spin-$N$ fields based on this topology from the elementary states of twistor theory. The twistor functions corresponding to the elementary states admit a parameterization in terms of the poloidal and toroidal... |
2311.17390 | Qing-Hua Zhu | Qing-Hua Zhu | Aberration effect on lower-order images of thin accretion disk in the
astrometric approach | 33 pages in 11pt, 22 figures | Phys. Rev. D 109, 044057 (2024) | 10.1103/PhysRevD.109.044057 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | With recent advancements in observing supermassive black holes with the Event
Horizon Telescope, there has been persistent exploration into what the images
can reveal about fundamental physics, including space-time geometries and
astrophysical emission sources. Inspired by Penrose's aberration formula for a
rigid sph... | [
{
"created": "Wed, 29 Nov 2023 06:42:23 GMT",
"version": "v1"
}
] | 2024-03-15 | [
[
"Zhu",
"Qing-Hua",
""
]
] | With recent advancements in observing supermassive black holes with the Event Horizon Telescope, there has been persistent exploration into what the images can reveal about fundamental physics, including space-time geometries and astrophysical emission sources. Inspired by Penrose's aberration formula for a rigid spher... |
2009.01788 | Pierre Martin-Dussaud | Pierre Martin-Dussaud | Black-to-White Hole Scenario: Foundation and Evaporation | PhD thesis (2020) | null | null | null | gr-qc math-ph math.MP quant-ph | http://creativecommons.org/licenses/by/4.0/ | A theory of quantum gravity is expected to change profoundly our
understanding of black holes. Quantum theory has already shown, as a first
approximation, that a black hole slowly evaporates. Non-perturbative quantum
gravity also predicts that such an object could metamorphose into a white hole,
its time-reverse. In ... | [
{
"created": "Thu, 3 Sep 2020 16:51:35 GMT",
"version": "v1"
}
] | 2020-09-04 | [
[
"Martin-Dussaud",
"Pierre",
""
]
] | A theory of quantum gravity is expected to change profoundly our understanding of black holes. Quantum theory has already shown, as a first approximation, that a black hole slowly evaporates. Non-perturbative quantum gravity also predicts that such an object could metamorphose into a white hole, its time-reverse. In th... |
2401.08254 | Farruh Atamurotov | G. Mustafa, Allah Ditta, Faisal Javed, Farruh Atamurotov, Ibrar
Hussain, Bobomurat Ahmedov | Probing black hole in Starobinsky-Bel-Robinson gravity with
thermodynamical analysis, effective force and gravitational weak lensing | 16 pages, 11 figures | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this work, we investigate the effects of plasma and the coupling parameter
$\beta>0$, on the thermodynamic properties and weak gravitational lensing by
the Schwarzschild-like black hole in the Starobinsky-Bel-Robinson gravity
(SBRG). We observe that the horizon radius and the corrected entropy of the
Schwarzschild... | [
{
"created": "Tue, 16 Jan 2024 10:14:04 GMT",
"version": "v1"
}
] | 2024-01-17 | [
[
"Mustafa",
"G.",
""
],
[
"Ditta",
"Allah",
""
],
[
"Javed",
"Faisal",
""
],
[
"Atamurotov",
"Farruh",
""
],
[
"Hussain",
"Ibrar",
""
],
[
"Ahmedov",
"Bobomurat",
""
]
] | In this work, we investigate the effects of plasma and the coupling parameter $\beta>0$, on the thermodynamic properties and weak gravitational lensing by the Schwarzschild-like black hole in the Starobinsky-Bel-Robinson gravity (SBRG). We observe that the horizon radius and the corrected entropy of the Schwarzschild-l... |
0707.1526 | Sergiu Vacaru I. | Sergiu I. Vacaru | Generalized Lagrange Transforms: Finsler Geometry Methods and
Deformation Quantization of Gravity | latex 2e, 11pt, 17 pages, to be published: An. St. Univ. Al. I. Cuza,
Iasi, s I a, Matematica, vol LIII (suplement), 2007 | , An. St. Univ. Al. I. Cuza din Iasi (S.N.), Matematica, vol LIII,
2007, Supliment, 327-342 | null | null | gr-qc hep-th math-ph math.MP math.SG | null | We propose a natural Fedosov type quantization of generalized Lagrange models
and gravity theories with metrics lifted on tangent bundle, or extended to
higher dimension, following some stated geometric/ physical conditions (for
instance, nonholonomic and/or conformal transforms to some physically important
metrics o... | [
{
"created": "Wed, 11 Jul 2007 17:55:49 GMT",
"version": "v1"
},
{
"created": "Thu, 11 Oct 2007 18:41:28 GMT",
"version": "v2"
}
] | 2008-01-08 | [
[
"Vacaru",
"Sergiu I.",
""
]
] | We propose a natural Fedosov type quantization of generalized Lagrange models and gravity theories with metrics lifted on tangent bundle, or extended to higher dimension, following some stated geometric/ physical conditions (for instance, nonholonomic and/or conformal transforms to some physically important metrics or ... |
2006.02162 | Rodrigo Maier | Santiago E. P. Bergliaffa, Edson Elias de Souza Filho, Rodrigo Maier | Strong Lensing and Nonminimally Coupled Electromagnetism | null | null | 10.1103/PhysRevD.101.124038 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The lensing at large deflection angles caused by a Schwarzschild black hole
for the case of a nonminimal coupling between gravitation and electromagnetism
is examined. We show that photons follow an effective geometry, which displays
an effective photon sphere. For the case in which the source, lens and observer
are ... | [
{
"created": "Wed, 3 Jun 2020 10:57:07 GMT",
"version": "v1"
}
] | 2020-07-01 | [
[
"Bergliaffa",
"Santiago E. P.",
""
],
[
"Filho",
"Edson Elias de Souza",
""
],
[
"Maier",
"Rodrigo",
""
]
] | The lensing at large deflection angles caused by a Schwarzschild black hole for the case of a nonminimal coupling between gravitation and electromagnetism is examined. We show that photons follow an effective geometry, which displays an effective photon sphere. For the case in which the source, lens and observer are al... |
2203.04918 | Marcello Miranda | Marcello Miranda, Daniele Vernieri, Salvatore Capozziello, Francisco
S. N. Lobo | Bouncing Cosmology in Fourth-Order Gravity | 7 pages. Proceedings for the Special Issue "Alternative Gravities and
Fundamental Cosmology", matches published version in Universe | Universe 2022, 8(3), 161 | 10.3390/universe8030161 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The Big Bang initial singularity problem can be solved by means of bouncing
solutions. In the context of extended theories of gravity, we will look for
covariant effective actions whose field equations contain up to fourth-order
derivatives of the metric tensor. In finding such bouncing solutions, we will
make use of... | [
{
"created": "Wed, 9 Mar 2022 18:00:54 GMT",
"version": "v1"
}
] | 2022-03-10 | [
[
"Miranda",
"Marcello",
""
],
[
"Vernieri",
"Daniele",
""
],
[
"Capozziello",
"Salvatore",
""
],
[
"Lobo",
"Francisco S. N.",
""
]
] | The Big Bang initial singularity problem can be solved by means of bouncing solutions. In the context of extended theories of gravity, we will look for covariant effective actions whose field equations contain up to fourth-order derivatives of the metric tensor. In finding such bouncing solutions, we will make use of a... |
gr-qc/9908070 | Garcia | L.C.Garcia de Andrade | Double cosmic walls in Teleparallel Gravity | Latex file 7 Kb | null | null | null | gr-qc | null | An example is given of a plane topological torsion defect representing a
cosmic wall double wall in teleparallel gravity.The parallel planar walls
undergone a repulsive gravitational force due to Cartan torsion.This is the
first example of a non-Riemannian double cosmic wall.It is shown that the walls
oscillate with ... | [
{
"created": "Fri, 27 Aug 1999 04:24:36 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"de Andrade",
"L. C. Garcia",
""
]
] | An example is given of a plane topological torsion defect representing a cosmic wall double wall in teleparallel gravity.The parallel planar walls undergone a repulsive gravitational force due to Cartan torsion.This is the first example of a non-Riemannian double cosmic wall.It is shown that the walls oscillate with a ... |
gr-qc/9912122 | Herbert Balasin | P.C. Aichelburg (Univ. of Vienna), H.Balasin (TU-Wien) | Generalized asymptotic structure of the ultrarelativistic Schwarzschild
black hole | uses AMS-macros, two figures | Class.Quant.Grav. 17 (2000) 3645-3662 | 10.1088/0264-9381/17/18/304 | UWthPh-1999-78, TUW-99-28 | gr-qc | null | We discuss the asymptotic structure of the ultrarelativistic Schwarzschild
black hole. An explicit construction for a conformal boundary both at spatial
and null infinity is given together with the corresponding expressions for the
ADM and Bondi four-momenta.
| [
{
"created": "Fri, 31 Dec 1999 17:11:13 GMT",
"version": "v1"
}
] | 2009-10-31 | [
[
"Aichelburg",
"P. C.",
"",
"Univ. of Vienna"
],
[
"Balasin",
"H.",
"",
"TU-Wien"
]
] | We discuss the asymptotic structure of the ultrarelativistic Schwarzschild black hole. An explicit construction for a conformal boundary both at spatial and null infinity is given together with the corresponding expressions for the ADM and Bondi four-momenta. |
0810.5018 | Kirill Bronnikov | K.A. Bronnikov, E. Elizalde, O.B. Zaslavskii | Dark energy, exotic matter and properties of horizons in black hole
physics and cosmology | 9 pages, no figures. Contribution to "Problems of Modern Cosmology",
special volume on the occasion of Prof. S.D. Odintsov's 50th birthday | null | null | null | gr-qc astro-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We summarize recent results on the properties of near-horizon metrics in
different spherically symmetric space-times, including Kantowski-Sachs
cosmological models whose evolution begins with a horizon (the so-called Null
Big Bang) and static metrics related to black holes. We describe the types of
matter compatible ... | [
{
"created": "Tue, 28 Oct 2008 12:17:48 GMT",
"version": "v1"
}
] | 2008-11-03 | [
[
"Bronnikov",
"K. A.",
""
],
[
"Elizalde",
"E.",
""
],
[
"Zaslavskii",
"O. B.",
""
]
] | We summarize recent results on the properties of near-horizon metrics in different spherically symmetric space-times, including Kantowski-Sachs cosmological models whose evolution begins with a horizon (the so-called Null Big Bang) and static metrics related to black holes. We describe the types of matter compatible wi... |
1802.00816 | Thomas W. Baumgarte | Satya P. Butler, Alicia R. Lima, Thomas W. Baumgarte and Stuart L.
Shapiro | Maximally Rotating Supermassive Stars at the Onset of Collapse: The
Perturbative Effects of Gas Pressure, Magnetic Fields, Dark Matter and Dark
Energy | 18 pages, 3 figures, matches published version | null | 10.1093/mnras/sty834 | null | gr-qc astro-ph.CO astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The discovery of quasars at increasingly large cosmological redshifts may
favor "direct collapse" as the most promising evolutionary route to the
formation of supermassive black holes. In this scenario, supermassive black
holes form when their progenitors - supermassive stars - become unstable to
gravitational collap... | [
{
"created": "Fri, 2 Feb 2018 19:00:15 GMT",
"version": "v1"
},
{
"created": "Thu, 26 Jul 2018 20:16:59 GMT",
"version": "v2"
}
] | 2018-07-30 | [
[
"Butler",
"Satya P.",
""
],
[
"Lima",
"Alicia R.",
""
],
[
"Baumgarte",
"Thomas W.",
""
],
[
"Shapiro",
"Stuart L.",
""
]
] | The discovery of quasars at increasingly large cosmological redshifts may favor "direct collapse" as the most promising evolutionary route to the formation of supermassive black holes. In this scenario, supermassive black holes form when their progenitors - supermassive stars - become unstable to gravitational collapse... |
1509.00152 | Liu Zhao | Jun Li, Kun Meng and Liu Zhao | Near horizon symmetry and entropy of black holes in $f(R)$ gravity and
conformal gravity | 9 pages, to appear in General Relativity and Gravitation | General Relativity and Gravitation 47(10):116, 2015 | 10.1007/s10714-015-1957-6 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We generalize the Noether current method proposed by Majhi and Padmanabhan
recently to $f(R)$ gravity and conformal gravity and analyze the near horizon
symmetry of black holes in these models. It is shown that the entropy obtained
with Cardy's formula agrees with Wald entropy.
| [
{
"created": "Tue, 1 Sep 2015 06:13:04 GMT",
"version": "v1"
}
] | 2015-09-23 | [
[
"Li",
"Jun",
""
],
[
"Meng",
"Kun",
""
],
[
"Zhao",
"Liu",
""
]
] | We generalize the Noether current method proposed by Majhi and Padmanabhan recently to $f(R)$ gravity and conformal gravity and analyze the near horizon symmetry of black holes in these models. It is shown that the entropy obtained with Cardy's formula agrees with Wald entropy. |
1301.4122 | Francesco Cianfrani dr | Francesco Cianfrani, Giovanni Montani | Dirac prescription from BRST symmetry in FRW space-time | 11 pages, typos fixed | Phys.Rev.D87(2013)084025 | 10.1103/PhysRevD.87.084025 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A procedure to define the BRST charge from the Noether one in extended phase
space is given. It is outlined how this prescription can be applied to a
Friedmann-Robertson-Walker space-time with a differential gauge condition and
it allows us to reproduce the results of [19]. Then we discuss the
cohomological classes a... | [
{
"created": "Thu, 17 Jan 2013 15:28:24 GMT",
"version": "v1"
},
{
"created": "Fri, 14 Mar 2014 18:03:17 GMT",
"version": "v2"
}
] | 2015-06-12 | [
[
"Cianfrani",
"Francesco",
""
],
[
"Montani",
"Giovanni",
""
]
] | A procedure to define the BRST charge from the Noether one in extended phase space is given. It is outlined how this prescription can be applied to a Friedmann-Robertson-Walker space-time with a differential gauge condition and it allows us to reproduce the results of [19]. Then we discuss the cohomological classes ass... |
1010.5575 | Khalid Saifullah | Muhammad Bilal and K. Saifullah | Thermodynamics of accelerating and rotating black holes | null | Astrophysics and Space Science, 343 (2013) 165 | 10.1007/s10509-012-1245-9 | null | gr-qc hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Thermodynamics of a large family of black holes from electrovacuum solutions
of Einstein's equations is studied. This family includes rotating and
non-accelerating black holes with NUT charge, and rotating and accelerating
black holes. The surface gravity, Hawking temperature and the area laws for
these black holes a... | [
{
"created": "Wed, 27 Oct 2010 05:22:08 GMT",
"version": "v1"
}
] | 2015-05-20 | [
[
"Bilal",
"Muhammad",
""
],
[
"Saifullah",
"K.",
""
]
] | Thermodynamics of a large family of black holes from electrovacuum solutions of Einstein's equations is studied. This family includes rotating and non-accelerating black holes with NUT charge, and rotating and accelerating black holes. The surface gravity, Hawking temperature and the area laws for these black holes are... |
2205.03283 | Fech Scen Khoo | J. L. Bl\'azquez-Salcedo, L. M. Gonz\'alez-Romero, F. S. Khoo, J.
Kunz, V. Preut | Universal relations for quasinormal modes of neutron stars in $R^2$
gravity | 25 pages, 23 figures; Some figures updated | Phys. Rev. D 106, 044007 (2022) | 10.1103/PhysRevD.106.044007 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We construct quasinormal modes for neutron stars in $R^2$ gravity in the
Einstein frame, considering scalar masses in the sub-neV range. In particular,
we investigate the fundamental quadrupole fluid f-modes and the dipole fluid
F-modes. Employing six equations of state covering matter content with
nucleons, hyperons... | [
{
"created": "Fri, 6 May 2022 15:11:42 GMT",
"version": "v1"
},
{
"created": "Wed, 25 May 2022 21:31:36 GMT",
"version": "v2"
}
] | 2022-08-04 | [
[
"Blázquez-Salcedo",
"J. L.",
""
],
[
"González-Romero",
"L. M.",
""
],
[
"Khoo",
"F. S.",
""
],
[
"Kunz",
"J.",
""
],
[
"Preut",
"V.",
""
]
] | We construct quasinormal modes for neutron stars in $R^2$ gravity in the Einstein frame, considering scalar masses in the sub-neV range. In particular, we investigate the fundamental quadrupole fluid f-modes and the dipole fluid F-modes. Employing six equations of state covering matter content with nucleons, hyperons, ... |
2111.12846 | Andrei Zelnikov | Valeri P. Frolov and Andrei Zelnikov | Spherically symmetric black holes in the limiting curvature theory of
gravity | 15 pages, 6 figures | null | 10.1103/PhysRevD.105.024041 | Alberta Thy 36-21 | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper we describe a model of a four-dimensional spherically symmetric
black hole in a limiting curvature theory of gravity. In this theory the
Einstein-Hilbert action is modified by adding to the action terms providing
inequality constraints on chosen curvature invariants. We demonstrated that in
such a model... | [
{
"created": "Wed, 24 Nov 2021 23:38:33 GMT",
"version": "v1"
}
] | 2022-02-02 | [
[
"Frolov",
"Valeri P.",
""
],
[
"Zelnikov",
"Andrei",
""
]
] | In this paper we describe a model of a four-dimensional spherically symmetric black hole in a limiting curvature theory of gravity. In this theory the Einstein-Hilbert action is modified by adding to the action terms providing inequality constraints on chosen curvature invariants. We demonstrated that in such a model, ... |
1904.02622 | Marco de Cesare | Marco de Cesare | Reconstruction of mimetic gravity in a non-singular bouncing universe
from quantum gravity | Invited article for the special issue "Progress in Group Field Theory
and Related Quantum Gravity Formalisms" of the journal "Universe"; 21 pages,
2 figures; v2: matches published version | Universe 2019, 5(5), 107 | 10.3390/universe5050107 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We illustrate a general reconstruction procedure for mimetic gravity.
Focusing on a bouncing cosmological background, we derive general properties
that must be satisfied by the function $f(\Box\phi)$ implementing the limiting
curvature hypothesis. We show how relevant physical information can be
extracted from power ... | [
{
"created": "Thu, 4 Apr 2019 15:50:12 GMT",
"version": "v1"
},
{
"created": "Wed, 8 May 2019 22:32:37 GMT",
"version": "v2"
}
] | 2019-05-10 | [
[
"de Cesare",
"Marco",
""
]
] | We illustrate a general reconstruction procedure for mimetic gravity. Focusing on a bouncing cosmological background, we derive general properties that must be satisfied by the function $f(\Box\phi)$ implementing the limiting curvature hypothesis. We show how relevant physical information can be extracted from power la... |
2307.16748 | Mingzhi Wang | Mingzhi Wang, Guanghai Guo, Pengfei Yan, Songbai Chen, Jiliang Jing | The ring-shaped shadow of rotating naked singularity with a complete
photon sphere | 14 pages, 11 figures. It is to be published in Chinese Physics C | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate the shadows of Konoplya-Zhidenko naked singularity. In the
spacetime of Konoplya-Zhidenko naked singularity, not only can unstable
retrograde light ring (LR) exist, but also unstable prograde LR, leading to the
formation of a complete photon sphere (PS). Due to the absence of an event
horizon, a dark d... | [
{
"created": "Mon, 31 Jul 2023 15:15:47 GMT",
"version": "v1"
},
{
"created": "Fri, 4 Aug 2023 14:20:04 GMT",
"version": "v2"
},
{
"created": "Fri, 15 Sep 2023 11:46:25 GMT",
"version": "v3"
},
{
"created": "Mon, 18 Dec 2023 04:35:43 GMT",
"version": "v4"
},
{
"cr... | 2024-06-06 | [
[
"Wang",
"Mingzhi",
""
],
[
"Guo",
"Guanghai",
""
],
[
"Yan",
"Pengfei",
""
],
[
"Chen",
"Songbai",
""
],
[
"Jing",
"Jiliang",
""
]
] | We investigate the shadows of Konoplya-Zhidenko naked singularity. In the spacetime of Konoplya-Zhidenko naked singularity, not only can unstable retrograde light ring (LR) exist, but also unstable prograde LR, leading to the formation of a complete photon sphere (PS). Due to the absence of an event horizon, a dark dis... |
1305.4306 | Emanuele Berti | Zhongyang Zhang, Emanuele Berti, Vitor Cardoso | Quasinormal ringing of Kerr black holes. II. Excitation by particles
falling radially with arbitrary energy | 15 pages, 3 figures, 4 tables. Catalogs of quasinormal mode
excitation factors B_q can be downloaded at
http://www.phy.olemiss.edu/~berti/qnms.html and
http://gamow.ist.utl.pt/~vitor/?page=ringdown | Phys. Rev. D 88, 044018 (2013) | 10.1103/PhysRevD.88.044018 | null | gr-qc astro-ph.HE hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The analytical understanding of quasinormal mode ringing requires an accurate
knowledge of the Green's function describing the response of the black hole to
external perturbations. We carry out a comprehensive study of quasinormal mode
excitation for Kerr black holes. Relying on the formalism developed by Mano,
Suzuk... | [
{
"created": "Sat, 18 May 2013 23:09:09 GMT",
"version": "v1"
}
] | 2014-01-23 | [
[
"Zhang",
"Zhongyang",
""
],
[
"Berti",
"Emanuele",
""
],
[
"Cardoso",
"Vitor",
""
]
] | The analytical understanding of quasinormal mode ringing requires an accurate knowledge of the Green's function describing the response of the black hole to external perturbations. We carry out a comprehensive study of quasinormal mode excitation for Kerr black holes. Relying on the formalism developed by Mano, Suzuki ... |
1507.02241 | Ikjyot Singh Kohli | Ikjyot Singh Kohli | The Osgood Criterion and Finite-Time Cosmological Singularities | To appear in Annalen der Physik (AdP) | Annalen Phys. 528 (2016) no.7-8, 603-611 | 10.1002/andp.201500360 | null | gr-qc astro-ph.CO math-ph math.CA math.DS math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper, we apply Osgood's criterion from the theory of ordinary
differential equations to detect finite-time singularities in a spatially flat
FLRW universe in the context of a perfect fluid, a perfect fluid with bulk
viscosity, and a Chaplygin and anti-Chaplygin gas. In particular, we applied
Osgood's criteri... | [
{
"created": "Wed, 8 Jul 2015 18:03:02 GMT",
"version": "v1"
},
{
"created": "Sun, 12 Jul 2015 17:22:21 GMT",
"version": "v2"
},
{
"created": "Sat, 18 Jul 2015 16:22:57 GMT",
"version": "v3"
},
{
"created": "Wed, 27 Apr 2016 13:18:26 GMT",
"version": "v4"
}
] | 2016-08-05 | [
[
"Kohli",
"Ikjyot Singh",
""
]
] | In this paper, we apply Osgood's criterion from the theory of ordinary differential equations to detect finite-time singularities in a spatially flat FLRW universe in the context of a perfect fluid, a perfect fluid with bulk viscosity, and a Chaplygin and anti-Chaplygin gas. In particular, we applied Osgood's criterion... |
1702.05925 | George Alekseev A. | George A. Alekseev | Integrable and non-integrable structures in Einstein - Maxwell equations
with Abelian isometry group $\mathcal{G}_2$ | 32 pages, LaTeX | Proceedings of the Steklov Institute of Mathematics, 2016, Vol.
295, pp. 1-26; Trudy Matematicheskogo Instituta imeni V.A. Steklova, 2016,
Vol. 295, pp. 7-33 (Russian) | 10.1134/S0081543816080010 | null | gr-qc hep-th nlin.SI | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The classes of electrovacuum Einstein - Maxwell fields (with a cosmological
constant), which metrics admit an Abelian two-dimensional isometry group
$\mathcal{G}_2$ with non-null orbits and electromagnetic fields possess the
same symmetry, are considered. For these fields we describe the structures of
so called "nond... | [
{
"created": "Mon, 20 Feb 2017 10:56:31 GMT",
"version": "v1"
}
] | 2017-02-23 | [
[
"Alekseev",
"George A.",
""
]
] | The classes of electrovacuum Einstein - Maxwell fields (with a cosmological constant), which metrics admit an Abelian two-dimensional isometry group $\mathcal{G}_2$ with non-null orbits and electromagnetic fields possess the same symmetry, are considered. For these fields we describe the structures of so called "nondyn... |
gr-qc/0411023 | Stanley Deser | S. Deser | Self-Interaction and Gauge Invariance | Missing last reference added. 9 pages, This article, the first paper
in Gen. Rel. Grav. [1 (1970) 9], is now somewhat inaccessible; the present
posting is the original version, with a few subsequent references included.
Updates updated | Gen.Rel.Grav.1:9-18,1970 | 10.1007/BF00759198 | null | gr-qc astro-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A simple unified closed form derivation of the non-linearities of the
Einstein, Yang-Mills and spinless (e.g., chiral) meson systems is given. For
the first two, the non-linearities are required by locality and consistency; in
all cases, they are determined by the conserved currents associated with the
initial (linea... | [
{
"created": "Thu, 4 Nov 2004 13:55:04 GMT",
"version": "v1"
},
{
"created": "Mon, 8 Nov 2004 18:33:09 GMT",
"version": "v2"
},
{
"created": "Sat, 1 Nov 2014 17:18:43 GMT",
"version": "v3"
}
] | 2014-11-04 | [
[
"Deser",
"S.",
""
]
] | A simple unified closed form derivation of the non-linearities of the Einstein, Yang-Mills and spinless (e.g., chiral) meson systems is given. For the first two, the non-linearities are required by locality and consistency; in all cases, they are determined by the conserved currents associated with the initial (linear)... |
2311.04989 | William G. Cook | William Cook, Boris Daszuta, Jacob Fields, Peter Hammond, Simone
Albanesi, Francesco Zappa, Sebastiano Bernuzzi, David Radice | GR-Athena++: General-relativistic magnetohydrodynamics simulations of
neutron star spacetimes | 27 pages, 23 figures | null | null | null | gr-qc astro-ph.HE astro-ph.IM | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present the extension of GR-Athena++ to general-relativistic
magnetohydrodynamics (GRMHD) for applications to neutron star spacetimes. The
new solver couples the constrained transport implementation of Athena++ to the
Z4c formulation of the Einstein equations to simulate dynamical spacetimes with
GRMHD using oct-t... | [
{
"created": "Wed, 8 Nov 2023 19:08:28 GMT",
"version": "v1"
}
] | 2023-11-10 | [
[
"Cook",
"William",
""
],
[
"Daszuta",
"Boris",
""
],
[
"Fields",
"Jacob",
""
],
[
"Hammond",
"Peter",
""
],
[
"Albanesi",
"Simone",
""
],
[
"Zappa",
"Francesco",
""
],
[
"Bernuzzi",
"Sebastiano",
""
],
... | We present the extension of GR-Athena++ to general-relativistic magnetohydrodynamics (GRMHD) for applications to neutron star spacetimes. The new solver couples the constrained transport implementation of Athena++ to the Z4c formulation of the Einstein equations to simulate dynamical spacetimes with GRMHD using oct-tre... |
2104.10305 | Isabela Santiago De Matos | Isabela S. Matos, Maur\'icio O. Calv\~ao and Ioav Waga | Gravitational wave propagation in $f(R)$ models: New parametrizations
and observational constraints | 14 pages, 9 figures and 2 tables | Physical Review D 103, 104059 (2021) | 10.1103/PhysRevD.103.104059 | null | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Modified gravity (MG) theories predict, in general, that the ratio of
gravitational wave (GW) to electromagnetic (EM) luminosity distances, $\Xi$,
differs from its general relativity (GR) value of unity at cosmological scales,
thus providing another perturbative probe to MG. In this paper, we introduce
new phenomenol... | [
{
"created": "Wed, 21 Apr 2021 01:36:13 GMT",
"version": "v1"
}
] | 2021-05-28 | [
[
"Matos",
"Isabela S.",
""
],
[
"Calvão",
"Maurício O.",
""
],
[
"Waga",
"Ioav",
""
]
] | Modified gravity (MG) theories predict, in general, that the ratio of gravitational wave (GW) to electromagnetic (EM) luminosity distances, $\Xi$, differs from its general relativity (GR) value of unity at cosmological scales, thus providing another perturbative probe to MG. In this paper, we introduce new phenomenolog... |
gr-qc/0012044 | Jozef Sima | Miroslav Sukenik and Jozef Sima | Evaluation of neutrinos mass based on ENU model | 3 pages, LaTeX | null | null | SS-00-06 | gr-qc | null | Based on principles of the Expansive Nondecelerative Universe model that
enables to quantify and localize the gravitational energy density, and stemming
from the see-saw mechanism, the mass of electron, muon and tau neutrinos are
determined in an independent way.
| [
{
"created": "Tue, 12 Dec 2000 13:53:54 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Sukenik",
"Miroslav",
""
],
[
"Sima",
"Jozef",
""
]
] | Based on principles of the Expansive Nondecelerative Universe model that enables to quantify and localize the gravitational energy density, and stemming from the see-saw mechanism, the mass of electron, muon and tau neutrinos are determined in an independent way. |
gr-qc/0506097 | Woei Chet Lim | A. A. Coley and W. C. Lim | Asymptotic analysis of spatially inhomogeneous stiff and ultra-stiff
cosmologies | Accepted by CQG | Class.Quant.Grav. 22 (2005) 3073-3082 | 10.1088/0264-9381/22/14/016 | null | gr-qc | null | We calculate analytically the past asymptotic decay rates close to an initial
singularity in general G_0 spatially inhomogeneous perfect fluid models with an
effective equation of state which is stiff or ultra-stiff (i.e., $\gamma \ge
2$). These results are then supported by numerical simulations in a special
class o... | [
{
"created": "Sat, 18 Jun 2005 19:42:49 GMT",
"version": "v1"
}
] | 2009-11-11 | [
[
"Coley",
"A. A.",
""
],
[
"Lim",
"W. C.",
""
]
] | We calculate analytically the past asymptotic decay rates close to an initial singularity in general G_0 spatially inhomogeneous perfect fluid models with an effective equation of state which is stiff or ultra-stiff (i.e., $\gamma \ge 2$). These results are then supported by numerical simulations in a special class of ... |
1005.3298 | Edward Wilson-Ewing | Alejandro Corichi, Edward Wilson-Ewing | Surface terms, Asymptotics and Thermodynamics of the Holst Action | 16 pages | Class.Quant.Grav.27:205015,2010 | 10.1088/0264-9381/27/20/205015 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider a first order formalism for general relativity derived from the
Holst action. This action is obtained from the standard Palatini-Hilbert form
by adding a topological-like term and can be taken as the starting point for
loop quantum gravity and spin foam models. The equations of motion derived from
the Hol... | [
{
"created": "Tue, 18 May 2010 19:49:51 GMT",
"version": "v1"
}
] | 2010-09-22 | [
[
"Corichi",
"Alejandro",
""
],
[
"Wilson-Ewing",
"Edward",
""
]
] | We consider a first order formalism for general relativity derived from the Holst action. This action is obtained from the standard Palatini-Hilbert form by adding a topological-like term and can be taken as the starting point for loop quantum gravity and spin foam models. The equations of motion derived from the Holst... |
1610.04892 | Marcus Khuri | Marcus Khuri, Naqing Xie | Inequalities Between Size, Mass, Angular Momentum, and Charge for
Axisymmetric Bodies and the Formation of Trapped Surfaces | 12 pages | Ann. Henri Poincare, 18 (2017), no. 8, 2815-2830 | 10.1007/s00023-017-0582-1 | null | gr-qc hep-th math.DG | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We establish inequalities relating the size of a material body to its mass,
angular momentum, and charge, within the context of axisymmetric initial data
sets for the Einstein equations. These inequalities hold in general without the
assumption of the maximal condition, and use a notion of size which is easily
comput... | [
{
"created": "Sun, 16 Oct 2016 17:25:16 GMT",
"version": "v1"
}
] | 2018-03-28 | [
[
"Khuri",
"Marcus",
""
],
[
"Xie",
"Naqing",
""
]
] | We establish inequalities relating the size of a material body to its mass, angular momentum, and charge, within the context of axisymmetric initial data sets for the Einstein equations. These inequalities hold in general without the assumption of the maximal condition, and use a notion of size which is easily computab... |
2405.01348 | Shaun Fell | Shaun David Brocus Fell, Lavinia Heisenberg | GRBoondi: A code for evolving Generalized Proca theories on arbitrary
backgrounds | Submitted for review in the Journal of Open Source Software; Comments
welcome; The code can be found at https://github.com/ShaunFell/GRBoondi.git | null | null | null | gr-qc astro-ph.HE | http://creativecommons.org/licenses/by/4.0/ | While numerical simulations offer unparalleled precision and robustness in
studying complex physical systems, their execution is often hindered by
complexity, costliness, and time consumption due to the intricate equations
involved. This challenge is already encountered in General Relativity, where
non-flat spacetime... | [
{
"created": "Thu, 2 May 2024 14:57:14 GMT",
"version": "v1"
}
] | 2024-05-03 | [
[
"Fell",
"Shaun David Brocus",
""
],
[
"Heisenberg",
"Lavinia",
""
]
] | While numerical simulations offer unparalleled precision and robustness in studying complex physical systems, their execution is often hindered by complexity, costliness, and time consumption due to the intricate equations involved. This challenge is already encountered in General Relativity, where non-flat spacetimes ... |
1705.04877 | Roldao da Rocha | Roldao da Rocha, R. F. Sobreiro, A. A. Tomaz | Quadratic curvature terms and deformed Schwarzschild-de Sitter black
hole analogues in the laboratory | 5 pages, 2 figures | Phys. Lett. B775 (2017) 277 | 10.1016/j.physletb.2017.11.009 | null | gr-qc physics.flu-dyn | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Sound waves on a fluid stream, in a de Laval nozzle, are shown to correspond
to quasinormal modes emitted by black holes that are physical solutions in a
quadratic curvature gravity with cosmological constant. Sound waves patterns in
transsonic regimes at a laboratory are employed here to provide experimental
data re... | [
{
"created": "Sat, 13 May 2017 19:24:15 GMT",
"version": "v1"
}
] | 2017-11-21 | [
[
"da Rocha",
"Roldao",
""
],
[
"Sobreiro",
"R. F.",
""
],
[
"Tomaz",
"A. A.",
""
]
] | Sound waves on a fluid stream, in a de Laval nozzle, are shown to correspond to quasinormal modes emitted by black holes that are physical solutions in a quadratic curvature gravity with cosmological constant. Sound waves patterns in transsonic regimes at a laboratory are employed here to provide experimental data rega... |
2102.09363 | Jonathan Gorard | Jonathan Gorard | Hypergraph Discretization of the Cauchy Problem in General Relativity
via Wolfram Model Evolution | 131 pages, 84 figures | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Although the traditional form of the Einstein field equations is
intrinsically four-dimensional, the field of numerical general relativity
focuses on the reformulation of these equations as a 3 + 1-dimensional Cauchy
problem, in which Cauchy initial data is specified on a three-dimensional
spatial hypersurface, and t... | [
{
"created": "Mon, 15 Feb 2021 01:32:18 GMT",
"version": "v1"
},
{
"created": "Mon, 18 Oct 2021 14:24:15 GMT",
"version": "v2"
}
] | 2021-10-19 | [
[
"Gorard",
"Jonathan",
""
]
] | Although the traditional form of the Einstein field equations is intrinsically four-dimensional, the field of numerical general relativity focuses on the reformulation of these equations as a 3 + 1-dimensional Cauchy problem, in which Cauchy initial data is specified on a three-dimensional spatial hypersurface, and the... |
2310.03727 | Andreu Maso-Ferrando | Renan B. Magalh\~aes, Andreu Mas\'o-Ferrando, Flavio Bombacigno,
Gonzalo J. Olmo and Lu\'is C. B. Crispino | Echoes from bounded universes | null | null | null | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | We construct a general class of modified Ellis wormholes, where one
asymptotic Minkowski region is replaced by a bounded 2-sphere core,
characterized by asymptotic finite areal radius. We pursue an in-depth analysis
of the resulting geometry, outlining that geodesic completeness is guaranteed
also when the radial fun... | [
{
"created": "Thu, 5 Oct 2023 17:50:15 GMT",
"version": "v1"
}
] | 2023-10-06 | [
[
"Magalhães",
"Renan B.",
""
],
[
"Masó-Ferrando",
"Andreu",
""
],
[
"Bombacigno",
"Flavio",
""
],
[
"Olmo",
"Gonzalo J.",
""
],
[
"Crispino",
"Luís C. B.",
""
]
] | We construct a general class of modified Ellis wormholes, where one asymptotic Minkowski region is replaced by a bounded 2-sphere core, characterized by asymptotic finite areal radius. We pursue an in-depth analysis of the resulting geometry, outlining that geodesic completeness is guaranteed also when the radial funct... |
gr-qc/0702144 | Martin Bojowald | Martin Bojowald | Singularities and Quantum Gravity | 41 pages, lecture course at the XIIth Brazilian School on Cosmology
and Gravitation, September 2006 | AIPConf.Proc.910:294-333,2007 | 10.1063/1.2752483 | IGPG-07/2-4, NSF-KITP-07-19 | gr-qc hep-th | null | Although there is general agreement that a removal of classical gravitational
singularities is not only a crucial conceptual test of any approach to quantum
gravity but also a prerequisite for any fundamental theory, the precise
criteria for non-singular behavior are often unclear or controversial. Often,
only specia... | [
{
"created": "Tue, 27 Feb 2007 17:03:47 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Bojowald",
"Martin",
""
]
] | Although there is general agreement that a removal of classical gravitational singularities is not only a crucial conceptual test of any approach to quantum gravity but also a prerequisite for any fundamental theory, the precise criteria for non-singular behavior are often unclear or controversial. Often, only special ... |
2011.04894 | Askar Ali | Askar Ali | Lovelock black holes with double-logarithmic electrodynamics source | 29 pages and 27 figures | Int. J. Mod. Phys. A Vol. 37, No. 25, 2250161 (2022) | 10.1142/S0217751X22501615 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | This work examines the magnetized black holes of Lovelock gravity in the
presence of double-logarithmic electrodynamics. In this context, the Lovelock
polynomial is found and the accompanying thermodynamic quantities, such as
mass, entropy, Hawking temperature, and heat capacity are determined. This new
model of nonl... | [
{
"created": "Fri, 6 Nov 2020 10:25:48 GMT",
"version": "v1"
},
{
"created": "Thu, 26 Jan 2023 09:42:58 GMT",
"version": "v2"
}
] | 2023-02-01 | [
[
"Ali",
"Askar",
""
]
] | This work examines the magnetized black holes of Lovelock gravity in the presence of double-logarithmic electrodynamics. In this context, the Lovelock polynomial is found and the accompanying thermodynamic quantities, such as mass, entropy, Hawking temperature, and heat capacity are determined. This new model of nonlin... |
1308.2946 | Jonathan Engle | Atousa Chaharsough Shirazi and Jonathan Engle | Purely geometric path integral for spin foams | 21 pages | null | 10.1088/0264-9381/31/7/075010 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Spin-foams are a proposal for defining the dynamics of loop quantum gravity
via path integral. In order for a path integral to be at least formally
equivalent to the corresponding canonical quantization, at each point in the
space of histories it is important that the integrand have not only the correct
phase -- a to... | [
{
"created": "Tue, 13 Aug 2013 19:12:41 GMT",
"version": "v1"
}
] | 2015-06-16 | [
[
"Shirazi",
"Atousa Chaharsough",
""
],
[
"Engle",
"Jonathan",
""
]
] | Spin-foams are a proposal for defining the dynamics of loop quantum gravity via path integral. In order for a path integral to be at least formally equivalent to the corresponding canonical quantization, at each point in the space of histories it is important that the integrand have not only the correct phase -- a topi... |
2203.10954 | Mouhssine Koussour | M. Koussour, S. H. Shekh, M. Bennai, and N. Myrzakulov | Anisotropic f(Q) gravity model with bulk viscosity | Modern Physics Letters A accepted version | Mod. Phys. Lett. A, 39, 2450023 (2024) | 10.1142/S0217732324500238 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | This study investigates the dynamics of a spatially homogeneous and
anisotropic LRS Bianchi type-I universe with viscous fluid in the framework of
$f(Q)$ symmetric teleparallel gravity. We assume a linear form for $f(Q)$ and
introduce hypotheses regarding the relationship between the expansion and shear
scalars, as w... | [
{
"created": "Fri, 18 Mar 2022 14:00:51 GMT",
"version": "v1"
},
{
"created": "Sun, 3 Sep 2023 08:33:56 GMT",
"version": "v2"
},
{
"created": "Mon, 19 Feb 2024 23:42:07 GMT",
"version": "v3"
}
] | 2024-04-16 | [
[
"Koussour",
"M.",
""
],
[
"Shekh",
"S. H.",
""
],
[
"Bennai",
"M.",
""
],
[
"Myrzakulov",
"N.",
""
]
] | This study investigates the dynamics of a spatially homogeneous and anisotropic LRS Bianchi type-I universe with viscous fluid in the framework of $f(Q)$ symmetric teleparallel gravity. We assume a linear form for $f(Q)$ and introduce hypotheses regarding the relationship between the expansion and shear scalars, as wel... |
1702.02467 | Pramit Rej | Piyali Bhar and Pramit Rej | Charged gravastar model in $f(T)$ gravity admitting conformal motion | 15 pages | International Journal of Geometric Methods in Modern Physics Vol.
18, No. 07, 2150112 (2021) | 10.1142/S0219887821501127 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper, model of charged gravastar under $f(T)$ modified gravity is
obtained. The model has been explored by taking the diagonal tetrad field of
static spacetime together with electric charge. To solve the Einstein-Maxwell
field equations, along with $f(T)$ gravity, we assume the existence of a
conformal Killi... | [
{
"created": "Tue, 7 Feb 2017 06:27:58 GMT",
"version": "v1"
},
{
"created": "Thu, 20 May 2021 05:57:29 GMT",
"version": "v2"
},
{
"created": "Thu, 17 Jun 2021 16:40:24 GMT",
"version": "v3"
}
] | 2021-06-18 | [
[
"Bhar",
"Piyali",
""
],
[
"Rej",
"Pramit",
""
]
] | In this paper, model of charged gravastar under $f(T)$ modified gravity is obtained. The model has been explored by taking the diagonal tetrad field of static spacetime together with electric charge. To solve the Einstein-Maxwell field equations, along with $f(T)$ gravity, we assume the existence of a conformal Killing... |
2303.05720 | Vinod Dagwal | D.D.Pawar, S.D.Patil, V. J. Dagwal | Cold Dark Matter and Holographic Dark Energy Cosmological Model with Big
rip singularity | null | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We have explored cold dark matter and holographic dark energy cosmological
models with big rip singularity. To obtain the solution of the field equation,
we have supposed that scalar expansion $\theta$ is proportional to shear scalar
$\sigma ^2 $ which leads to $p_1=(p_2) ^n $, where $A_1 $, $A_2$ are metric
potentia... | [
{
"created": "Fri, 10 Mar 2023 05:58:05 GMT",
"version": "v1"
}
] | 2023-03-13 | [
[
"Pawar",
"D. D.",
""
],
[
"Patil",
"S. D.",
""
],
[
"Dagwal",
"V. J.",
""
]
] | We have explored cold dark matter and holographic dark energy cosmological models with big rip singularity. To obtain the solution of the field equation, we have supposed that scalar expansion $\theta$ is proportional to shear scalar $\sigma ^2 $ which leads to $p_1=(p_2) ^n $, where $A_1 $, $A_2$ are metric potentials... |
gr-qc/0604067 | Moh'd Qusailah Mr | K.G. Arun, B.R. Iyer, M.S.S. Qusailah and B.S. Sathyaprakash | Probing the non-linear structure of general relativity with black hole
binaries | 5 pages, 4 figures. Revised version, accepted for publication in
Phys. Rev D | Phys.Rev.D74:024006,2006 | 10.1103/PhysRevD.74.024006 | null | gr-qc astro-ph | null | Observations of the inspiral of massive binary black holes (BBH) in the Laser
Interferometer Space Antenna (LISA) and stellar mass binary black holes in the
European Gravitational-Wave Observatory (EGO) offer an unique opportunity to
test the non-linear structure of general relativity. For a binary composed of
two no... | [
{
"created": "Sun, 16 Apr 2006 09:50:19 GMT",
"version": "v1"
},
{
"created": "Thu, 29 Jun 2006 09:11:02 GMT",
"version": "v2"
}
] | 2008-11-26 | [
[
"Arun",
"K. G.",
""
],
[
"Iyer",
"B. R.",
""
],
[
"Qusailah",
"M. S. S.",
""
],
[
"Sathyaprakash",
"B. S.",
""
]
] | Observations of the inspiral of massive binary black holes (BBH) in the Laser Interferometer Space Antenna (LISA) and stellar mass binary black holes in the European Gravitational-Wave Observatory (EGO) offer an unique opportunity to test the non-linear structure of general relativity. For a binary composed of two non-... |
1403.1198 | Anne Green | Anne M. Green | Primordial Black Holes: sirens of the early Universe | 21 pages. To be published in "Quantum Aspects of Black Holes", ed. X.
Calmet (Springer, 2014) | null | 10.1007/978-3-319-10852-0_5 | null | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Primordial Black Holes (PBHs) are, typically light, black holes which can
form in the early Universe. There are a number of formation mechanisms,
including the collapse of large density perturbations, cosmic string loops and
bubble collisions. The number of PBHs formed is tightly constrained by the
consequences of th... | [
{
"created": "Wed, 5 Mar 2014 17:33:17 GMT",
"version": "v1"
}
] | 2021-04-07 | [
[
"Green",
"Anne M.",
""
]
] | Primordial Black Holes (PBHs) are, typically light, black holes which can form in the early Universe. There are a number of formation mechanisms, including the collapse of large density perturbations, cosmic string loops and bubble collisions. The number of PBHs formed is tightly constrained by the consequences of thei... |
gr-qc/0607141 | James S. Graber | James Graber | A Robust Test of General Relativity in Space | Poster paper presented at international workshop From Quarks to
Cosmos: Fundamental Physics Research in Space. 8 pages. v2: Close to edited
published version | Int.J.Mod.Phys.D16:2319-2324,2007 | 10.1142/S0218271807011401 | null | gr-qc | null | LISA may make it possible to test the black-hole uniqueness theorems of
general relativity, also called the no-hair theorems, by Ryan's method of
detecting the quadrupole moment of a black hole using high-mass-ratio
inspirals. This test can be performed more robustly by observing inspirals in
earlier stages, where th... | [
{
"created": "Mon, 31 Jul 2006 15:32:28 GMT",
"version": "v1"
},
{
"created": "Fri, 22 Feb 2008 19:58:29 GMT",
"version": "v2"
}
] | 2008-11-26 | [
[
"Graber",
"James",
""
]
] | LISA may make it possible to test the black-hole uniqueness theorems of general relativity, also called the no-hair theorems, by Ryan's method of detecting the quadrupole moment of a black hole using high-mass-ratio inspirals. This test can be performed more robustly by observing inspirals in earlier stages, where the ... |
1009.1761 | Serguei Krasnikov | S. Krasnikov | The speed of gravity in general relativity | typos corrected, etc | Grav.Cosmol.17:194-197,2011 | 10.1134/S0202289311020150 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The question is discussed of what is the speed of gravity (at the fundamental
non-perturbative level). The question is important, if nowhere else, in
discussing the problem of information "lost" in black holes. It turns out that
the duly defined "gravitational signal" generally may be causal, superluminal
and "semi-s... | [
{
"created": "Thu, 9 Sep 2010 12:53:25 GMT",
"version": "v1"
},
{
"created": "Wed, 25 May 2011 14:03:23 GMT",
"version": "v2"
}
] | 2011-06-10 | [
[
"Krasnikov",
"S.",
""
]
] | The question is discussed of what is the speed of gravity (at the fundamental non-perturbative level). The question is important, if nowhere else, in discussing the problem of information "lost" in black holes. It turns out that the duly defined "gravitational signal" generally may be causal, superluminal and "semi-sup... |
1703.10760 | Fairoos C | C. Fairoos, Sudipta Sarkar, K. P. Yogendran | Higher curvature self-interaction corrections to Hawking Radiation | 12 pages, no figures; Typo in author's name corrected | Phys. Rev. D 96, 024014 (2017) | 10.1103/PhysRevD.96.024014 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The purely thermal nature of Hawking radiation from evaporating black holes
leads to the information loss paradox. A possible route to its resolution could
be if (enough) correlations are shown to be present in the radiation emitted
from evaporating black holes. A re-analysis of Hawking's derivation including
the eff... | [
{
"created": "Fri, 31 Mar 2017 05:25:29 GMT",
"version": "v1"
},
{
"created": "Sat, 22 Jul 2017 07:26:50 GMT",
"version": "v2"
}
] | 2017-07-25 | [
[
"Fairoos",
"C.",
""
],
[
"Sarkar",
"Sudipta",
""
],
[
"Yogendran",
"K. P.",
""
]
] | The purely thermal nature of Hawking radiation from evaporating black holes leads to the information loss paradox. A possible route to its resolution could be if (enough) correlations are shown to be present in the radiation emitted from evaporating black holes. A re-analysis of Hawking's derivation including the effec... |
1606.03867 | K Haris | K Haris and Archana Pai | Performance comparison of multi-detector detection statistics in
targeted compact binary coalescence GW search | null | Phys. Rev. D 96, 102002 (2017) | 10.1103/PhysRevD.96.102002 | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Global network of advanced Interferometric gravitational wave (GW) detectors
are expected to be on-line soon. Coherent observation of GW from a distant
compact binary coalescence (CBC) with a network of interferometers located in
different continents give crucial information about the source such as source
location a... | [
{
"created": "Mon, 13 Jun 2016 09:19:37 GMT",
"version": "v1"
}
] | 2017-11-17 | [
[
"Haris",
"K",
""
],
[
"Pai",
"Archana",
""
]
] | Global network of advanced Interferometric gravitational wave (GW) detectors are expected to be on-line soon. Coherent observation of GW from a distant compact binary coalescence (CBC) with a network of interferometers located in different continents give crucial information about the source such as source location and... |
0808.2259 | Fernando Mendez | A. F. Grillo, E. Luzio and F. Mendez | Time delay of light signals in an energy-dependent spacetime metric | 5 pages. This version contains two new references with respect to the
published version | Phys.Rev.D77:104033,2008 | 10.1103/PhysRevD.77.104033 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this note we review the problem of time delay of photons propagating in a
spacetime with a metric that explicitly depends on the energy of the particles
(Gravity-Rainbow approach). We show that corrections due to this approach --
which is closely related to DSR proposal -- produce for small redshifts
($z<<1$) smal... | [
{
"created": "Sat, 16 Aug 2008 16:11:53 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Grillo",
"A. F.",
""
],
[
"Luzio",
"E.",
""
],
[
"Mendez",
"F.",
""
]
] | In this note we review the problem of time delay of photons propagating in a spacetime with a metric that explicitly depends on the energy of the particles (Gravity-Rainbow approach). We show that corrections due to this approach -- which is closely related to DSR proposal -- produce for small redshifts ($z<<1$) smalle... |
1110.5549 | John D. Swain | Y. N. Srivastava, J. Swain and A. Widom | An Argument for Nonminimal Higgs Coupling to Gravity | null | null | null | null | gr-qc hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The coupling of gravity to a scalar field raises a number of interesting
questions of principle since the usual minimal coupling obtained by replacing
ordinary derivatives with covariant derivatives is not available -- they are
the same operation on scalar fields. Conformal couplings in the Lagrangian
proportional to... | [
{
"created": "Tue, 25 Oct 2011 15:57:15 GMT",
"version": "v1"
}
] | 2011-10-26 | [
[
"Srivastava",
"Y. N.",
""
],
[
"Swain",
"J.",
""
],
[
"Widom",
"A.",
""
]
] | The coupling of gravity to a scalar field raises a number of interesting questions of principle since the usual minimal coupling obtained by replacing ordinary derivatives with covariant derivatives is not available -- they are the same operation on scalar fields. Conformal couplings in the Lagrangian proportional to $... |
gr-qc/9702058 | Alex Kaganovich | E.I.Guendelman and A.B.Kaganovich | Gravitational theory without the cosmological constant problem,
symmetries of space-filling branes and higher dimensions | 26 pages | Phys.Rev.D56:3548-3554,1997 | 10.1103/PhysRevD.56.3548 | Phys.BGU-12/97 | gr-qc | null | We showed that the principle of nongravitating vacuum energy, when formulated
in the first order formalism, solves the cosmological constant problem. The
most appealing formulation of the theory displays a local symmetry associated
with the arbitrariness of the measure of integration. This can be motivated by
thinkin... | [
{
"created": "Thu, 27 Feb 1997 08:52:58 GMT",
"version": "v1"
}
] | 2011-09-09 | [
[
"Guendelman",
"E. I.",
""
],
[
"Kaganovich",
"A. B.",
""
]
] | We showed that the principle of nongravitating vacuum energy, when formulated in the first order formalism, solves the cosmological constant problem. The most appealing formulation of the theory displays a local symmetry associated with the arbitrariness of the measure of integration. This can be motivated by thinking ... |
1910.03694 | Andrei Lebed G | Andrei G. Lebed | Breakdown of the equivalence between gravitational mass and energy due
to quantum effects | Based on talk presented at the Fifteenth Marcel Grossmann Meeting on
General Relativity, Rome, July 2018. arXiv admin note: substantial text
overlap with arXiv:1711.00116, arXiv:1903.03173 | International Journal of Modern Physics D, vol. 28, 1930020 (2019) | 10.1142/S0218271819300209 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We review our recent theoretical results about inequivalence between passive
and active gravitational masses and energy in semiclassical variant of general
relativity, where gravitational field is not quantized but matter is quantized.
To this end, we consider the simplest quantum body with internal degrees of
freedo... | [
{
"created": "Tue, 8 Oct 2019 21:13:12 GMT",
"version": "v1"
}
] | 2019-10-10 | [
[
"Lebed",
"Andrei G.",
""
]
] | We review our recent theoretical results about inequivalence between passive and active gravitational masses and energy in semiclassical variant of general relativity, where gravitational field is not quantized but matter is quantized. To this end, we consider the simplest quantum body with internal degrees of freedom ... |
1508.04761 | Bushra Majeed | Bushra Majeed, Mubasher Jamil and Parthapratim Pradhan | Thermodynamic Relations for Kiselev and Dilaton Black Hole | 21 pages, 4 figures. accepted for publication in Advances in High
Energy Physics | Adv.High Energy Phys. 2015 (2015) 124910 | 10.1155/2015/124910 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate the thermodynamics and phase transition for Kiselev black hole
and dilaton black hole. Specifically we consider Reissner Nordstrom black hole
surrounded by radiation and dust, and Schwarzschild black hole surrounded by
quintessence, as special cases of Kiselev solution. We have calculated the
products... | [
{
"created": "Wed, 19 Aug 2015 17:28:56 GMT",
"version": "v1"
},
{
"created": "Mon, 24 Aug 2015 16:51:39 GMT",
"version": "v2"
}
] | 2016-11-04 | [
[
"Majeed",
"Bushra",
""
],
[
"Jamil",
"Mubasher",
""
],
[
"Pradhan",
"Parthapratim",
""
]
] | We investigate the thermodynamics and phase transition for Kiselev black hole and dilaton black hole. Specifically we consider Reissner Nordstrom black hole surrounded by radiation and dust, and Schwarzschild black hole surrounded by quintessence, as special cases of Kiselev solution. We have calculated the products r... |
2307.13647 | Chih-Hung Wang | Chih-Hung Wang, Yu-Huei Wu | Ideal gases and degenerate Fermi gases in external torsion fields | null | null | null | null | gr-qc cond-mat.stat-mech quant-ph | http://creativecommons.org/licenses/by/4.0/ | We investigate the effects of external torsion fields on ideal gases and
Fermi gases, and derive a macroscopic quantity, which we call torsion
susceptibility. We first consider the Dirac fermions in the Riemann-Cartan
spacetime minimally coupled to the background torsion and electromagnetic
fields. After applying the... | [
{
"created": "Tue, 25 Jul 2023 16:56:04 GMT",
"version": "v1"
}
] | 2023-07-26 | [
[
"Wang",
"Chih-Hung",
""
],
[
"Wu",
"Yu-Huei",
""
]
] | We investigate the effects of external torsion fields on ideal gases and Fermi gases, and derive a macroscopic quantity, which we call torsion susceptibility. We first consider the Dirac fermions in the Riemann-Cartan spacetime minimally coupled to the background torsion and electromagnetic fields. After applying the F... |
1911.12646 | Fabio M. Mele | Norbert Bodendorfer, Fabio M. Mele, Johannes M\"unch | (b,v)-type variables for black to white hole transitions in effective
loop quantum gravity | 13 pages, 1 figure, published version, minor improvements, references
added, conclusions expanded | Physics Letters B 819 (2021) 136390 | 10.1016/j.physletb.2021.136390 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Quantum gravity effects in effective models of loop quantum gravity, such as
loop quantum cosmology, are encoded in the choice of so-called polymerisation
schemes. Physical viability of the models, such as an onset of quantum effects
at curvature scales near the Planck curvature, severely restrict the possible
choice... | [
{
"created": "Thu, 28 Nov 2019 11:08:55 GMT",
"version": "v1"
},
{
"created": "Tue, 29 Jun 2021 20:08:57 GMT",
"version": "v2"
}
] | 2021-07-02 | [
[
"Bodendorfer",
"Norbert",
""
],
[
"Mele",
"Fabio M.",
""
],
[
"Münch",
"Johannes",
""
]
] | Quantum gravity effects in effective models of loop quantum gravity, such as loop quantum cosmology, are encoded in the choice of so-called polymerisation schemes. Physical viability of the models, such as an onset of quantum effects at curvature scales near the Planck curvature, severely restrict the possible choices.... |
1105.3456 | Alex Silbergleit | C. W. F. Everitt, D. B. DeBra, B. W. Parkinson, J. P. Turneaure, J. W.
Conklin, M. I. Heifetz, G. M. Keiser, A. S. Silbergleit, T. Holmes, J.
Kolodziejczak, M. Al-Meshari, J. C. Mester, B. Muhlfelder, V. Solomonik, K.
Stahl, P. Worden, W. Bencze, S. Buchman, B. Clarke, A. Al-Jadaan, H.
Al-Jibreen, J. Li, J. A. ... | Gravity Probe B: Final Results of a Space Experiment to Test General
Relativity | null | Phys.Rev.Lett.106:221101,2011 | 10.1103/PhysRevLett.106.221101 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Gravity Probe B, launched 20 April 2004, is a space experiment testing two
fundamental predictions of Einstein's theory of General Relativity (GR), the
geodetic and frame-dragging effects, by means of cryogenic gyroscopes in Earth
orbit. Data collection started 28 August 2004 and ended 14 August 2005.
Analysis of the... | [
{
"created": "Tue, 17 May 2011 19:14:02 GMT",
"version": "v1"
}
] | 2011-07-21 | [
[
"Everitt",
"C. W. F.",
""
],
[
"DeBra",
"D. B.",
""
],
[
"Parkinson",
"B. W.",
""
],
[
"Turneaure",
"J. P.",
""
],
[
"Conklin",
"J. W.",
""
],
[
"Heifetz",
"M. I.",
""
],
[
"Keiser",
"G. M.",
""
],
[
... | Gravity Probe B, launched 20 April 2004, is a space experiment testing two fundamental predictions of Einstein's theory of General Relativity (GR), the geodetic and frame-dragging effects, by means of cryogenic gyroscopes in Earth orbit. Data collection started 28 August 2004 and ended 14 August 2005. Analysis of the d... |
1704.01624 | Pierre Vanhove | N.E.J. Bjerrum-Bohr, Barry R. Holstein, John F. Donoghue, Ludovic
Plant\'e, Pierre Vanhove | Illuminating Light Bending | latex. 35 pages. 5 figures. Contribution written for the proceedings
of the conference "Recent Developments in Strings and Gravity", Corfu 2016 | null | null | IPHT-t15/011/, IHES/P/15/05 | gr-qc hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The interactions of gravitons with spin-1 matter are calculated in parallel
with the well known photon case. It is shown that graviton scattering
amplitudes can be factorized into a product of familiar electromagnetic forms,
and cross sections for various reactions are straightforwardly evaluated using
helicity metho... | [
{
"created": "Wed, 5 Apr 2017 19:31:03 GMT",
"version": "v1"
}
] | 2017-04-07 | [
[
"Bjerrum-Bohr",
"N. E. J.",
""
],
[
"Holstein",
"Barry R.",
""
],
[
"Donoghue",
"John F.",
""
],
[
"Planté",
"Ludovic",
""
],
[
"Vanhove",
"Pierre",
""
]
] | The interactions of gravitons with spin-1 matter are calculated in parallel with the well known photon case. It is shown that graviton scattering amplitudes can be factorized into a product of familiar electromagnetic forms, and cross sections for various reactions are straightforwardly evaluated using helicity methods... |
1711.08713 | Ryotaro Kase | Ryotaro Kase, Masato Minamitsuji, and Shinji Tsujikawa | Relativistic stars in vector-tensor theories | 20 pages, 7 figures, published version | Phys. Rev. D 97, 084009 (2018) | 10.1103/PhysRevD.97.084009 | null | gr-qc astro-ph.CO hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study relativistic star solutions in second-order generalized Proca
theories characterized by a $U(1)$-breaking vector field with derivative
couplings. In the models with cubic and quartic derivative coupling, the mass
and radius of stars become larger than those in general relativity for negative
derivative coupl... | [
{
"created": "Thu, 23 Nov 2017 14:39:41 GMT",
"version": "v1"
},
{
"created": "Wed, 10 Jan 2018 02:24:37 GMT",
"version": "v2"
},
{
"created": "Tue, 10 Apr 2018 09:01:15 GMT",
"version": "v3"
}
] | 2018-04-11 | [
[
"Kase",
"Ryotaro",
""
],
[
"Minamitsuji",
"Masato",
""
],
[
"Tsujikawa",
"Shinji",
""
]
] | We study relativistic star solutions in second-order generalized Proca theories characterized by a $U(1)$-breaking vector field with derivative couplings. In the models with cubic and quartic derivative coupling, the mass and radius of stars become larger than those in general relativity for negative derivative couplin... |
2207.10870 | Sizheng Ma | Sizheng Ma, Keefe Mitman, Ling Sun, Nils Deppe, Fran\c{c}ois H\'ebert,
Lawrence E. Kidder, Jordan Moxon, William Throwe, Nils L. Vu, Yanbei Chen | Quasinormal-mode filters: a new approach to analyze the
gravitational-wave ringdown of binary black-hole mergers | null | Phys. Rev. D 106, 084036 (2021) | 10.1103/PhysRevD.106.084036 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We propose two frequency-domain filters to analyze ringdown signals of binary
black hole mergers. The first rational filter is constructed based on a set of
(arbitrary) quasi-normal modes (QNMs) of the remnant black holes, whereas the
second full filter comes from the transmissivity of the remnant black holes.
The tw... | [
{
"created": "Fri, 22 Jul 2022 04:23:04 GMT",
"version": "v1"
},
{
"created": "Mon, 12 Dec 2022 06:43:41 GMT",
"version": "v2"
}
] | 2022-12-13 | [
[
"Ma",
"Sizheng",
""
],
[
"Mitman",
"Keefe",
""
],
[
"Sun",
"Ling",
""
],
[
"Deppe",
"Nils",
""
],
[
"Hébert",
"François",
""
],
[
"Kidder",
"Lawrence E.",
""
],
[
"Moxon",
"Jordan",
""
],
[
"Throwe"... | We propose two frequency-domain filters to analyze ringdown signals of binary black hole mergers. The first rational filter is constructed based on a set of (arbitrary) quasi-normal modes (QNMs) of the remnant black holes, whereas the second full filter comes from the transmissivity of the remnant black holes. The two ... |
1901.10009 | Fethi M. Ramazanoglu | Fethi M. Ramazano\u{g}lu | Spontaneous tensorization from curvature coupling and beyond | 6 pages. Published version in PRD. Main conclusions have not changed,
but there are substantial updates to the discussion of theories with
derivative coupling | Phys. Rev. D 99, 084015 (2019) | 10.1103/PhysRevD.99.084015 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We generalize the recently introduced extended scalar-tensor-Gauss-Bonnet
(ESTGB) theories and their close relatives to include spontaneous growth of
nonscalar fields such as vectors. This is analogous to the program that
developed spontaneous tensorization from the original spontaneous scalarization
theory of Damour... | [
{
"created": "Mon, 28 Jan 2019 21:36:05 GMT",
"version": "v1"
},
{
"created": "Sat, 13 Apr 2019 14:12:47 GMT",
"version": "v2"
}
] | 2019-04-16 | [
[
"Ramazanoğlu",
"Fethi M.",
""
]
] | We generalize the recently introduced extended scalar-tensor-Gauss-Bonnet (ESTGB) theories and their close relatives to include spontaneous growth of nonscalar fields such as vectors. This is analogous to the program that developed spontaneous tensorization from the original spontaneous scalarization theory of Damour a... |
1502.03230 | Jaume Haro | Jaume de Haro and Yi-Fu Cai | An Extended Matter Bounce Scenario: current status and challenges | Final version | Gen. Rel. Grav 47 no 8 (2015) | 10.1007/s10714-015-1936-y | 1502.03230 | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | As an alternative to the paradigm of slow roll inflation, we propose an
extended scenario of the matter bounce cosmology in which the Universe has
experienced a quasi-matter contracting phase with a variable background
equation of state parameter. This extended matter bounce scenario can be
realized by considering a ... | [
{
"created": "Wed, 11 Feb 2015 09:35:55 GMT",
"version": "v1"
},
{
"created": "Thu, 3 Sep 2015 11:39:56 GMT",
"version": "v2"
}
] | 2015-09-04 | [
[
"de Haro",
"Jaume",
""
],
[
"Cai",
"Yi-Fu",
""
]
] | As an alternative to the paradigm of slow roll inflation, we propose an extended scenario of the matter bounce cosmology in which the Universe has experienced a quasi-matter contracting phase with a variable background equation of state parameter. This extended matter bounce scenario can be realized by considering a si... |
2406.09228 | Henri Inchausp\'e Dr. | Henri Inchausp\'e, Silvia Gasparotto, Diego Blas, Lavinia Heisenberg,
Jann Zosso, Shubhanshu Tiwari | Measuring gravitational wave memory with LISA | 16 pages, 14 figures | null | null | null | gr-qc astro-ph.CO astro-ph.IM | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Gravitational wave (GW) astronomy has revolutionized our capacity to explore
nature. The next generation of observatories, among which the space-borne
detector Laser Interferometer Space Antenna LISA, is expected to yield orders
of magnitude of signal-to-noise ratio improvement, and reach fainter and novel
features o... | [
{
"created": "Thu, 13 Jun 2024 15:28:21 GMT",
"version": "v1"
}
] | 2024-06-14 | [
[
"Inchauspé",
"Henri",
""
],
[
"Gasparotto",
"Silvia",
""
],
[
"Blas",
"Diego",
""
],
[
"Heisenberg",
"Lavinia",
""
],
[
"Zosso",
"Jann",
""
],
[
"Tiwari",
"Shubhanshu",
""
]
] | Gravitational wave (GW) astronomy has revolutionized our capacity to explore nature. The next generation of observatories, among which the space-borne detector Laser Interferometer Space Antenna LISA, is expected to yield orders of magnitude of signal-to-noise ratio improvement, and reach fainter and novel features of ... |
0907.3336 | Roman Kezerashvili | Roman Ya. Kezerashvili, Justin F. Vazquez-Poritz | Escape Trajectories of Solar Sails and General Relativity | 6 pages, 3 figures. Proceedings of the Sixth IAA Symposium on
Realistic Near-Term Advanced Scientific Space Missions. Missions to the Outer
Solar System and Beyond, pp. 67-72, Aosta, Italy, 6-9 July, 2009 | Phys.Lett.B681:387-390,2009 | 10.1016/j.physletb.2009.10.064 | null | gr-qc physics.space-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | General relativity can have a significant impact on the long-range escape
trajectories of solar sails deployed near the sun. Spacetime curvature in the
vicinity of the sun can cause a solar sail traveling from 0.01 AU to 2550 AU to
be deflected by as much as one million kilometers, and should therefore be
taken into ... | [
{
"created": "Mon, 20 Jul 2009 02:37:38 GMT",
"version": "v1"
}
] | 2010-12-17 | [
[
"Kezerashvili",
"Roman Ya.",
""
],
[
"Vazquez-Poritz",
"Justin F.",
""
]
] | General relativity can have a significant impact on the long-range escape trajectories of solar sails deployed near the sun. Spacetime curvature in the vicinity of the sun can cause a solar sail traveling from 0.01 AU to 2550 AU to be deflected by as much as one million kilometers, and should therefore be taken into ac... |
0903.5309 | Carlos Augusto Romero Filho | C. Romero, J. B. Formiga, L. F. P. da Silva, F. Dahia | On the embedding of spacetime in higher-dimensional spaces with torsion | 16 pages, 2 figures | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We revisit the Riemann-Cartan geometry in the context of recent
higher-dimensional theories of spacetime. After introducing the concept of
torsion in a modern geometrical language we present some results that represent
extensions of Riemannian theorems. We consider the theory of local embeddings
and submanifolds in t... | [
{
"created": "Mon, 30 Mar 2009 20:12:23 GMT",
"version": "v1"
}
] | 2009-04-01 | [
[
"Romero",
"C.",
""
],
[
"Formiga",
"J. B.",
""
],
[
"da Silva",
"L. F. P.",
""
],
[
"Dahia",
"F.",
""
]
] | We revisit the Riemann-Cartan geometry in the context of recent higher-dimensional theories of spacetime. After introducing the concept of torsion in a modern geometrical language we present some results that represent extensions of Riemannian theorems. We consider the theory of local embeddings and submanifolds in the... |
1403.3164 | Sumanta Chakraborty | Sumanta Chakraborty and Soumitra SenGupta | Higher curvature gravity at the LHC | Minor modifications; Matches published version | Physical Review D 90, 047901 (2014) | 10.1103/PhysRevD.90.047901 | null | gr-qc hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate brane-world models in different viable $F(R)$ gravity theories
where the Lagrangian is an arbitrary function of the curvature scalar. Deriving
the warped metric for this model, resembling Randal-Sundrum (RS) like
solutions, we determine the graviton KK modes. The recent observations at the
LHC, which c... | [
{
"created": "Thu, 13 Mar 2014 05:27:50 GMT",
"version": "v1"
},
{
"created": "Sun, 10 Aug 2014 04:34:57 GMT",
"version": "v2"
}
] | 2014-08-12 | [
[
"Chakraborty",
"Sumanta",
""
],
[
"SenGupta",
"Soumitra",
""
]
] | We investigate brane-world models in different viable $F(R)$ gravity theories where the Lagrangian is an arbitrary function of the curvature scalar. Deriving the warped metric for this model, resembling Randal-Sundrum (RS) like solutions, we determine the graviton KK modes. The recent observations at the LHC, which con... |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.