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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1503.09080 | Otakar Svitek | T. Tahamtan, O. Svitek | Robinson-Trautman solution with scalar hair | to appear in PRD | Phys. Rev. D 91: 104032, 2015 | 10.1103/PhysRevD.91.104032 | null | gr-qc | http://creativecommons.org/licenses/by/3.0/ | Explicit Robinson-Trautman solution with minimally coupled free scalar field
is derived and analyzed. It is shown that this solution contains curvature
singularity which is initially naked but later the horizon envelopes it. We use
quasilocal horizon definition and prove its existence in later retarded times
using su... | [
{
"created": "Tue, 31 Mar 2015 15:13:53 GMT",
"version": "v1"
},
{
"created": "Thu, 7 May 2015 08:35:12 GMT",
"version": "v2"
}
] | 2015-07-31 | [
[
"Tahamtan",
"T.",
""
],
[
"Svitek",
"O.",
""
]
] | Explicit Robinson-Trautman solution with minimally coupled free scalar field is derived and analyzed. It is shown that this solution contains curvature singularity which is initially naked but later the horizon envelopes it. We use quasilocal horizon definition and prove its existence in later retarded times using sub-... |
2404.07659 | Jonathan Luk | C\'ecile Huneau and Jonathan Luk | High-frequency solutions to the Einstein equations | 34 pages, review article | null | null | null | gr-qc math.AP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We review recent mathematical results concerning the high-frequency solutions
to the Einstein vacuum equations and the limits of these solutions. In
particular, we focus on two conjectures of Burnett, which attempt to give an
exact characterization of high-frequency limits of vacuum spacetimes as
solutions to the Ein... | [
{
"created": "Thu, 11 Apr 2024 11:47:24 GMT",
"version": "v1"
}
] | 2024-04-12 | [
[
"Huneau",
"Cécile",
""
],
[
"Luk",
"Jonathan",
""
]
] | We review recent mathematical results concerning the high-frequency solutions to the Einstein vacuum equations and the limits of these solutions. In particular, we focus on two conjectures of Burnett, which attempt to give an exact characterization of high-frequency limits of vacuum spacetimes as solutions to the Einst... |
2009.06407 | Michael Hobson | Michael Hobson, Anthony Lasenby | Weyl gauge theories of gravity do not predict a second clock effect | 11 pages, no figures, submitted to PRD. arXiv admin note: text
overlap with arXiv:1510.06699 | Phys. Rev. D 102, 084040 (2020) | 10.1103/PhysRevD.102.084040 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider Weyl gauge theories of gravity (WGTs), which are invariant both
under local Poincar\'e transformations and local changes of scale. Such
theories may be interpreted as gauge theories in Minkowski spacetime, but their
gravitational interactions are most often reinterpreted geometrically in terms
of a Weyl--... | [
{
"created": "Fri, 11 Sep 2020 16:56:22 GMT",
"version": "v1"
}
] | 2021-03-25 | [
[
"Hobson",
"Michael",
""
],
[
"Lasenby",
"Anthony",
""
]
] | We consider Weyl gauge theories of gravity (WGTs), which are invariant both under local Poincar\'e transformations and local changes of scale. Such theories may be interpreted as gauge theories in Minkowski spacetime, but their gravitational interactions are most often reinterpreted geometrically in terms of a Weyl--Ca... |
2007.08118 | Guansheng He | Guansheng He and Wenbin Lin | Gravitational frequency shift of light in equatorial plane of a radially
moving Schwarzschild black hole | null | Mon. Not. R. Astron. Soc. 470, 3877 (2017) | 10.1093/mnras/stx1539 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The kinematical effect induced by the transversal motion of a gravitational
lens on the frequency shift of light has been investigated in detail, while the
effect of the radial motion is thought to be much smaller than the transversal
one and thus has usually been neglected. In this work, we find that the radial
velo... | [
{
"created": "Thu, 16 Jul 2020 05:10:02 GMT",
"version": "v1"
}
] | 2020-07-17 | [
[
"He",
"Guansheng",
""
],
[
"Lin",
"Wenbin",
""
]
] | The kinematical effect induced by the transversal motion of a gravitational lens on the frequency shift of light has been investigated in detail, while the effect of the radial motion is thought to be much smaller than the transversal one and thus has usually been neglected. In this work, we find that the radial veloci... |
gr-qc/0106063 | Roberto Colistete Junior | N. Pinto-Neto, R. Colistete Jr | Graceful exit from inflation using quantum cosmology | 8 pages, RevTeX, 4 Postscript figures, uses graficx.sty. Added more
text and references | Phys.Lett.A290:219-226,2001 | 10.1016/S0375-9601(01)00674-0 | null | gr-qc | null | A massless scalar field without self interaction and string coupled to
gravity is quantized in the framework of quantum cosmology using the Bohm-de
Broglie interpretation. Gaussian superpositions of the quantum solutions of the
corresponding Wheeler-DeWitt equation in minisuperspace are constructed. The
bohmian traje... | [
{
"created": "Wed, 20 Jun 2001 21:33:59 GMT",
"version": "v1"
},
{
"created": "Fri, 7 Dec 2001 21:12:51 GMT",
"version": "v2"
}
] | 2009-09-25 | [
[
"Pinto-Neto",
"N.",
""
],
[
"Colistete",
"R.",
"Jr"
]
] | A massless scalar field without self interaction and string coupled to gravity is quantized in the framework of quantum cosmology using the Bohm-de Broglie interpretation. Gaussian superpositions of the quantum solutions of the corresponding Wheeler-DeWitt equation in minisuperspace are constructed. The bohmian traject... |
gr-qc/9508017 | Eric Poisson | Eric Poisson | Gravitational waves from coalescing compact binaries | LaTeX, 18 pages, two figures coming separately in .uu format (just
follow the instructions at the beginning of the file). To appear in the
Proceedings of the Sixth Canadian Conference on General Relativity and
Relativistic Astrophysics | null | null | null | gr-qc | null | This article is intended to provide a pedagogical account of issues related
to, and recent work on, gravitational waves from coalescing compact binaries
(composed of neutron stars and/or black holes). These waves are the most
promising for kilometer-size interferometric detectors such as LIGO and VIRGO.
Topics discus... | [
{
"created": "Mon, 7 Aug 1995 22:38:14 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Poisson",
"Eric",
""
]
] | This article is intended to provide a pedagogical account of issues related to, and recent work on, gravitational waves from coalescing compact binaries (composed of neutron stars and/or black holes). These waves are the most promising for kilometer-size interferometric detectors such as LIGO and VIRGO. Topics discusse... |
gr-qc/0201055 | Ezra T. Newman | Ezra T. Newman | On a Classical, Geometric Origin of Magnetic Moments, Spin-Angular
Momentum and the Dirac Gyromagnetic Ratio | 17 pages | Phys.Rev. D65 (2002) 104005 | 10.1103/PhysRevD.65.104005 | null | gr-qc | null | By treating the real Maxwell Field and real linearized Einstein equations as
being imbedded in complex Minkowski space, one can interpret magnetic moments
and spin-angular momentum as arising from a charge and mass monopole source
moving along a complex world line in the complex Minkowski space. In the
circumstances ... | [
{
"created": "Wed, 16 Jan 2002 20:42:13 GMT",
"version": "v1"
}
] | 2009-11-07 | [
[
"Newman",
"Ezra T.",
""
]
] | By treating the real Maxwell Field and real linearized Einstein equations as being imbedded in complex Minkowski space, one can interpret magnetic moments and spin-angular momentum as arising from a charge and mass monopole source moving along a complex world line in the complex Minkowski space. In the circumstances wh... |
0710.3540 | Etera R. Livine | Etera R. Livine, James P. Ryan | N=2 supersymmetric spin foams in three dimensions | 12 pages | Class.Quant.Grav.25:175014,2008 | 10.1088/0264-9381/25/17/175014 | null | gr-qc hep-th | null | We construct the spin foam model for N=2 supergravity in three dimensions.
Classically, it is a BF theory with gauge algebra osp(2|2). This algebra has
representations which are not completely reducible. This complicates the
procedure when building a state sum. Fortunately, one can and should excise
these representat... | [
{
"created": "Thu, 18 Oct 2007 15:40:45 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Livine",
"Etera R.",
""
],
[
"Ryan",
"James P.",
""
]
] | We construct the spin foam model for N=2 supergravity in three dimensions. Classically, it is a BF theory with gauge algebra osp(2|2). This algebra has representations which are not completely reducible. This complicates the procedure when building a state sum. Fortunately, one can and should excise these representatio... |
1201.2562 | Boris E. Meierovich | Boris E. Meierovich | To the theory of the Universe evolution | 25 pages, 9figures | Physical Review D 85, 123544 (2012) | 10.1103/PhysRevD.85.123544 | null | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Self-consistent account of the most simple non-gauge vector fields leads to a
broad spectrum of regular scenarios of temporal evolution of the Universe
completely within the frames of the Einstein's General relativity. The
longitudinal non-gauge vector field is "the missing link in the chain",
displaying the repulsiv... | [
{
"created": "Thu, 12 Jan 2012 13:43:32 GMT",
"version": "v1"
}
] | 2015-06-03 | [
[
"Meierovich",
"Boris E.",
""
]
] | Self-consistent account of the most simple non-gauge vector fields leads to a broad spectrum of regular scenarios of temporal evolution of the Universe completely within the frames of the Einstein's General relativity. The longitudinal non-gauge vector field is "the missing link in the chain", displaying the repulsive ... |
1907.05233 | Kazuharu Bamba | Z. Yousaf, Kazuharu Bamba, M. Z. Bhatti and U. Ghafoor | Charged Gravastars in Modified Gravity | 23 pages, 6 figures, final version to appear in Physical Review D | Phys. Rev. D 100, 024062 (2019) | 10.1103/PhysRevD.100.024062 | FU-PCG-63 | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper, we investigate the effects of electromagnetic field on the
isotropic spherical gravastar models in metric $f(R,T)$ gravity. For this
purpose, we have explored singularity-free exact models of relativistic spheres
with a specific equation of state. After considering Reissner Nordstr\"{o}m
spacetime as a... | [
{
"created": "Tue, 9 Jul 2019 14:01:58 GMT",
"version": "v1"
},
{
"created": "Fri, 26 Jul 2019 17:21:29 GMT",
"version": "v2"
}
] | 2020-03-03 | [
[
"Yousaf",
"Z.",
""
],
[
"Bamba",
"Kazuharu",
""
],
[
"Bhatti",
"M. Z.",
""
],
[
"Ghafoor",
"U.",
""
]
] | In this paper, we investigate the effects of electromagnetic field on the isotropic spherical gravastar models in metric $f(R,T)$ gravity. For this purpose, we have explored singularity-free exact models of relativistic spheres with a specific equation of state. After considering Reissner Nordstr\"{o}m spacetime as an ... |
1607.06636 | Tim Dietrich | Tim Dietrich, Maximiliano Ujevic, Wolfgang Tichy, Sebastiano Bernuzzi,
Bernd Bruegmann | Gravitational waves and mass ejecta from binary neutron star mergers:
Effect of the mass-ratio | null | Phys. Rev. D 95, 024029 (2017) | 10.1103/PhysRevD.95.024029 | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present new (3+1)D numerical relativity simulations of the binary neutron
star (BNS) merger and postmerger phase. We focus on a previously inaccessible
region of the binary parameter space spanning the binary's mass-ratio
$q\sim1.00-1.75$ for different total masses and equations of state, and up to
$q\sim2$ for a ... | [
{
"created": "Fri, 22 Jul 2016 11:26:39 GMT",
"version": "v1"
}
] | 2017-02-01 | [
[
"Dietrich",
"Tim",
""
],
[
"Ujevic",
"Maximiliano",
""
],
[
"Tichy",
"Wolfgang",
""
],
[
"Bernuzzi",
"Sebastiano",
""
],
[
"Bruegmann",
"Bernd",
""
]
] | We present new (3+1)D numerical relativity simulations of the binary neutron star (BNS) merger and postmerger phase. We focus on a previously inaccessible region of the binary parameter space spanning the binary's mass-ratio $q\sim1.00-1.75$ for different total masses and equations of state, and up to $q\sim2$ for a st... |
1812.09135 | Raihaneh Moti | R. Moti and A. Shojai | On the cutoff identification and the quantum improvement in
asymptotically safe gravity | null | null | 10.1016/j.physletb.2019.04.062 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Applying the exact renormalization group method to search the nonGaussian
fixed points of gravitational coupling, is frequently followed by two steps:
cutoff identification and improvement. Although there are various models for
identifying the cutoff momentum by some physical length, saving the general
covariance sho... | [
{
"created": "Fri, 21 Dec 2018 14:16:34 GMT",
"version": "v1"
},
{
"created": "Fri, 26 Apr 2019 09:36:24 GMT",
"version": "v2"
},
{
"created": "Thu, 9 May 2019 17:50:08 GMT",
"version": "v3"
}
] | 2019-05-10 | [
[
"Moti",
"R.",
""
],
[
"Shojai",
"A.",
""
]
] | Applying the exact renormalization group method to search the nonGaussian fixed points of gravitational coupling, is frequently followed by two steps: cutoff identification and improvement. Although there are various models for identifying the cutoff momentum by some physical length, saving the general covariance shoul... |
gr-qc/9912043 | Luis Herrera | L. Herrera, A. Di Prisco and D. Pavon | Measuring the strength of dissipative inflation | 8 pages, Latex. To appear in Gen.Rel.Grav | Gen.Rel.Grav. 32 (2000) 2091-2097 | 10.1023/A:1001990217528 | null | gr-qc astro-ph | null | We comment on recently proposed dissipative inflationary models. It is shown
that the strength of the inflationary expansion is related to a specific
combination of thermodynamic variables which is known to measure the
instability of self-gravitating dissipative systems.
| [
{
"created": "Fri, 10 Dec 1999 16:41:00 GMT",
"version": "v1"
}
] | 2015-06-25 | [
[
"Herrera",
"L.",
""
],
[
"Di Prisco",
"A.",
""
],
[
"Pavon",
"D.",
""
]
] | We comment on recently proposed dissipative inflationary models. It is shown that the strength of the inflationary expansion is related to a specific combination of thermodynamic variables which is known to measure the instability of self-gravitating dissipative systems. |
gr-qc/0010109 | Jerry B. Griffiths | J. Podolsky and J. B. Griffiths | Uniformly accelerating black holes in a de Sitter universe | 6 pages REVTeX, 3 figures, to appear in Phys. Rev. D. Figure 2
corrected | Phys.Rev. D63 (2001) 024006 | 10.1103/PhysRevD.63.024006 | null | gr-qc | null | A class of exact solutions of Einstein's equations is analysed which
describes uniformly accelerating charged black holes in an asymptotically de
Sitter universe. This is a generalisation of the C-metric which includes a
cosmological constant. The physical interpretation of the solutions is
facilitated by the introdu... | [
{
"created": "Mon, 30 Oct 2000 17:01:03 GMT",
"version": "v1"
},
{
"created": "Tue, 31 Oct 2000 13:02:22 GMT",
"version": "v2"
}
] | 2009-10-31 | [
[
"Podolsky",
"J.",
""
],
[
"Griffiths",
"J. B.",
""
]
] | A class of exact solutions of Einstein's equations is analysed which describes uniformly accelerating charged black holes in an asymptotically de Sitter universe. This is a generalisation of the C-metric which includes a cosmological constant. The physical interpretation of the solutions is facilitated by the introduct... |
0908.4234 | Plamen Fiziev | Plamen P. Fiziev | Classes of Exact Solutions to the Teukolsky Master Equation | 27 pages, LaTeX file, no figures. Final version | Class. Quant. Grav.27:135001, 2010 | 10.1088/0264-9381/27/13/135001 | SU-TH-01-08-2009 | gr-qc astro-ph.HE hep-th math-ph math.MP | http://creativecommons.org/licenses/publicdomain/ | The Teukolsky Master Equation is the basic tool for study of perturbations of
the Kerr metric in linear approximation. It admits separation of variables,
thus yielding the Teukolsky Radial Equation and the Teukolsky Angular Equation.
We present here a unified description of all classes of exact solutions to
these equ... | [
{
"created": "Fri, 28 Aug 2009 16:16:47 GMT",
"version": "v1"
},
{
"created": "Wed, 2 Sep 2009 11:06:56 GMT",
"version": "v2"
},
{
"created": "Tue, 27 Oct 2009 19:31:55 GMT",
"version": "v3"
},
{
"created": "Wed, 12 May 2010 05:38:32 GMT",
"version": "v4"
}
] | 2010-05-25 | [
[
"Fiziev",
"Plamen P.",
""
]
] | The Teukolsky Master Equation is the basic tool for study of perturbations of the Kerr metric in linear approximation. It admits separation of variables, thus yielding the Teukolsky Radial Equation and the Teukolsky Angular Equation. We present here a unified description of all classes of exact solutions to these equat... |
gr-qc/0010044 | B. S. Sathyaprakash | B.S. Sathyaprakash | Mother templates for gravitational wave chirps | 7 pages, CQG style file (iopart.cls) | Class.Quant.Grav.17:L157-162,2000 | 10.1088/0264-9381/17/23/101 | null | gr-qc | null | Templates used in a search for binary black holes and neutron stars in
gravitational wave interferometer data will have to be computed on-line since
the computational storage and retrieval costs for the template bank are too
expensive. The conventional dimensionless variable $T=(c^3/Gm)t,$ where $m$ is
the total mass... | [
{
"created": "Wed, 11 Oct 2000 21:42:29 GMT",
"version": "v1"
}
] | 2010-04-06 | [
[
"Sathyaprakash",
"B. S.",
""
]
] | Templates used in a search for binary black holes and neutron stars in gravitational wave interferometer data will have to be computed on-line since the computational storage and retrieval costs for the template bank are too expensive. The conventional dimensionless variable $T=(c^3/Gm)t,$ where $m$ is the total mass o... |
1301.2788 | Behnam Pourhassan | Behnam Pourhassan | Viscous Modified Cosmic Chaplygin Gas Cosmology | null | International Journal of Modern Physics D Vol. 22, No. 9 (2013)
1350061 | 10.1142/S0218271813500612 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper we construct modified cosmic Chaplygin gas which has viscosity.
We use exponential function method to solve non-linear equation and obtain
time-dependent dark energy density. Then discuss Hubble expansion parameter and
scale factor and fix them by using observational data. We also investigate
stability ... | [
{
"created": "Sun, 13 Jan 2013 16:26:17 GMT",
"version": "v1"
}
] | 2013-06-05 | [
[
"Pourhassan",
"Behnam",
""
]
] | In this paper we construct modified cosmic Chaplygin gas which has viscosity. We use exponential function method to solve non-linear equation and obtain time-dependent dark energy density. Then discuss Hubble expansion parameter and scale factor and fix them by using observational data. We also investigate stability of... |
2202.11327 | Hwajin Eom | Hwajin Eom, Wontae Kim | Analytic approach to the formation of a three-dimensional black string
from a dust cloud | 18 pages, 1 figure, comments and references added | JCAP 11 (2022) 004 | 10.1088/1475-7516/2022/11/004 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In three-dimensional low-energy string theory, we study the formation of a
black string from a dust cloud. We analytically obtain two distinct classes of
exact solutions with arbitrary functions responsible for mass distributions of
the dust cloud. The first and second kinds of solutions may describe collapsing
dusts... | [
{
"created": "Wed, 23 Feb 2022 06:51:55 GMT",
"version": "v1"
},
{
"created": "Mon, 7 Nov 2022 02:32:11 GMT",
"version": "v2"
}
] | 2022-11-08 | [
[
"Eom",
"Hwajin",
""
],
[
"Kim",
"Wontae",
""
]
] | In three-dimensional low-energy string theory, we study the formation of a black string from a dust cloud. We analytically obtain two distinct classes of exact solutions with arbitrary functions responsible for mass distributions of the dust cloud. The first and second kinds of solutions may describe collapsing dusts b... |
1811.11137 | Daniel Blixt | Daniel Blixt, Manuel Hohmann, Christian Pfeifer | Hamiltonian and primary constraints of new general relativity | 13 pages, 1 figure, journal version | Phys. Rev. D 99, 084025 (2019) | 10.1103/PhysRevD.99.084025 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We derive the kinematic Hamiltonian for the so-called "new general
relativity" class of teleparallel gravity theories, which is the most general
class of theories whose Lagrangian is quadratic in the torsion tensor and does
not contain parity violating terms. Our approach makes use of an explicit
expression for the f... | [
{
"created": "Tue, 27 Nov 2018 17:54:44 GMT",
"version": "v1"
},
{
"created": "Fri, 3 May 2019 11:10:26 GMT",
"version": "v2"
}
] | 2019-05-06 | [
[
"Blixt",
"Daniel",
""
],
[
"Hohmann",
"Manuel",
""
],
[
"Pfeifer",
"Christian",
""
]
] | We derive the kinematic Hamiltonian for the so-called "new general relativity" class of teleparallel gravity theories, which is the most general class of theories whose Lagrangian is quadratic in the torsion tensor and does not contain parity violating terms. Our approach makes use of an explicit expression for the fla... |
2011.01865 | Gabriele Franciolini | Kaze W. K. Wong, Gabriele Franciolini, Valerio De Luca, Vishal
Baibhav, Emanuele Berti, Paolo Pani and Antonio Riotto | Constraining the primordial black hole scenario with Bayesian inference
and machine learning: the GWTC-2 gravitational wave catalog | 14 pages, 5 figures. v2: matching published version | Phys. Rev. D 103, 023026 (2021) | 10.1103/PhysRevD.103.023026 | null | gr-qc astro-ph.CO hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Primordial black holes (PBHs) might be formed in the early Universe and could
comprise at least a fraction of the dark matter. Using the recently released
GWTC-2 dataset from the third observing run of the LIGO-Virgo Collaboration, we
investigate whether current observations are compatible with the hypothesis
that al... | [
{
"created": "Tue, 3 Nov 2020 17:37:56 GMT",
"version": "v1"
},
{
"created": "Mon, 11 Jan 2021 14:23:41 GMT",
"version": "v2"
}
] | 2021-02-03 | [
[
"Wong",
"Kaze W. K.",
""
],
[
"Franciolini",
"Gabriele",
""
],
[
"De Luca",
"Valerio",
""
],
[
"Baibhav",
"Vishal",
""
],
[
"Berti",
"Emanuele",
""
],
[
"Pani",
"Paolo",
""
],
[
"Riotto",
"Antonio",
""
]
... | Primordial black holes (PBHs) might be formed in the early Universe and could comprise at least a fraction of the dark matter. Using the recently released GWTC-2 dataset from the third observing run of the LIGO-Virgo Collaboration, we investigate whether current observations are compatible with the hypothesis that all ... |
1903.03974 | Igor Fomin | Igor V. Fomin and Sergey V. Chervon | Reconstruction of GR cosmological solutions in modified gravity theories | 4 figures | Phys. Rev. D 100, 023511 (2019) | 10.1103/PhysRevD.100.023511 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the special class of the exact solutions in cosmological models
based on the Generalized Scalar-Tensor Gravity with non-minimal coupling of a
scalar field to the Ricci scalar and to the Gauss-Bonnet scalar in 4D Friedmann
universe corresponding to similar ones in GR. The parameters of cosmological
perturbati... | [
{
"created": "Sun, 10 Mar 2019 11:52:06 GMT",
"version": "v1"
}
] | 2019-07-17 | [
[
"Fomin",
"Igor V.",
""
],
[
"Chervon",
"Sergey V.",
""
]
] | We study the special class of the exact solutions in cosmological models based on the Generalized Scalar-Tensor Gravity with non-minimal coupling of a scalar field to the Ricci scalar and to the Gauss-Bonnet scalar in 4D Friedmann universe corresponding to similar ones in GR. The parameters of cosmological perturbation... |
2306.08856 | N S Kavya | N. S. Kavya, G. Mustafa, V. Venkatesha, P.K. Sahoo | Exploring wormhole solutions in curvature-matter coupling gravity
supported by noncommutative geometry and conformal symmetry | Accepted version in Chinese Journal of Physics | null | 10.1016/j.cjph.2024.01.004 | null | gr-qc | http://creativecommons.org/licenses/by-nc-nd/4.0/ | This article explores new physically viable wormhole solutions within the
framework of f(R,Lm) gravity theory, incorporating noncommutative backgrounds
and conformal symmetries. The study investigates the impact of model parameters
on the existence and properties of wormholes. The derived shape function is
found to o... | [
{
"created": "Thu, 15 Jun 2023 04:51:57 GMT",
"version": "v1"
},
{
"created": "Sun, 7 Jan 2024 16:06:42 GMT",
"version": "v2"
}
] | 2024-01-09 | [
[
"Kavya",
"N. S.",
""
],
[
"Mustafa",
"G.",
""
],
[
"Venkatesha",
"V.",
""
],
[
"Sahoo",
"P. K.",
""
]
] | This article explores new physically viable wormhole solutions within the framework of f(R,Lm) gravity theory, incorporating noncommutative backgrounds and conformal symmetries. The study investigates the impact of model parameters on the existence and properties of wormholes. The derived shape function is found to obe... |
gr-qc/0205125 | Giovanni Amelino-Camelia | Giovanni Amelino-Camelia | On the fate of Lorentz symmetry in loop quantum gravity and
noncommutative spacetimes | 59 pages, LaTex | null | null | null | gr-qc | null | I analyze the deformation of Lorentz symmetry that holds in certain
noncommutative spacetimes and the way in which Lorentz symmetry is broken in
other noncommutative spacetimes. I also observe that discretization of areas
does not necessarily require departures from Lorentz symmetry. This is due to
the fact that Lore... | [
{
"created": "Wed, 29 May 2002 19:45:26 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Amelino-Camelia",
"Giovanni",
""
]
] | I analyze the deformation of Lorentz symmetry that holds in certain noncommutative spacetimes and the way in which Lorentz symmetry is broken in other noncommutative spacetimes. I also observe that discretization of areas does not necessarily require departures from Lorentz symmetry. This is due to the fact that Lorent... |
1612.04669 | Piyali Bhar | Piyali Bhar, Farook Rahaman, Tuhina Manna and Ayan Banerjee | Wormhole supported by dark energy admitting conformal motion | 9 pages, 2 tables and 4 figures, Accepted for Publication in European
Physical Journal C | null | 10.1140/epjc/s10052-016-4547-1 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this article, we study the possibility of sustaining a static and
spherically symmetric traversable wormhole geometries admitting conformal
motion in Einstein gravity, which presents a more systematic approach to search
a relation between matter and geometry. In wormhole physics, the presence of
exotic matter is a... | [
{
"created": "Tue, 13 Dec 2016 06:03:26 GMT",
"version": "v1"
}
] | 2017-02-01 | [
[
"Bhar",
"Piyali",
""
],
[
"Rahaman",
"Farook",
""
],
[
"Manna",
"Tuhina",
""
],
[
"Banerjee",
"Ayan",
""
]
] | In this article, we study the possibility of sustaining a static and spherically symmetric traversable wormhole geometries admitting conformal motion in Einstein gravity, which presents a more systematic approach to search a relation between matter and geometry. In wormhole physics, the presence of exotic matter is a f... |
0906.1120 | Keiko Kokeyama | K. Kokeyama (1), S. Sato (2), A. Nishizawa (3), S. Kawamura (4), Y.
Chen (5) and A. Sugamoto (1) ((1) Ochanomizu University, (2) Hosei
University, (3) Kyoto University, (4) National Astronomical Observatory of
Japan, (5) California Institute of Technology) | Development of displacement- and frequency-noise-free interferometer in
3-D configuration for gravitational wave detection | null | Phys.Rev.Lett.103:171101,2009 | 10.1103/PhysRevLett.103.171101 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The displacement- and frequency-noise-free interferometer (DFI) is a multiple
laser interferometer array for gravitational wave detection free from both the
displacement noise of optics and laser frequency noise. So far, partial
experimental demonstrations of DFI have been done in 2-D table top experiments.
In this p... | [
{
"created": "Fri, 5 Jun 2009 13:18:10 GMT",
"version": "v1"
}
] | 2009-10-29 | [
[
"Kokeyama",
"K.",
""
],
[
"Sato",
"S.",
""
],
[
"Nishizawa",
"A.",
""
],
[
"Kawamura",
"S.",
""
],
[
"Chen",
"Y.",
""
],
[
"Sugamoto",
"A.",
""
]
] | The displacement- and frequency-noise-free interferometer (DFI) is a multiple laser interferometer array for gravitational wave detection free from both the displacement noise of optics and laser frequency noise. So far, partial experimental demonstrations of DFI have been done in 2-D table top experiments. In this pap... |
2307.01264 | Luca Reali | Luca Reali, Andrea Maselli, Emanuele Berti | The impact of compact binary confusion noise on tests of fundamental
physics with next-generation gravitational-wave detectors | 11 pages, 5 figures | null | null | ET-0228A-23 | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Next-generation ground-based gravitational-wave observatories such as the
Einstein Telescope and Cosmic Explorer will detect $O(10^{5}-10^{6})$ signals
from compact binary coalescences every year, the exact number depending on
uncertainties in the binary merger rate. Several overlapping signals will be
present in ban... | [
{
"created": "Mon, 3 Jul 2023 18:00:06 GMT",
"version": "v1"
}
] | 2023-07-06 | [
[
"Reali",
"Luca",
""
],
[
"Maselli",
"Andrea",
""
],
[
"Berti",
"Emanuele",
""
]
] | Next-generation ground-based gravitational-wave observatories such as the Einstein Telescope and Cosmic Explorer will detect $O(10^{5}-10^{6})$ signals from compact binary coalescences every year, the exact number depending on uncertainties in the binary merger rate. Several overlapping signals will be present in band ... |
gr-qc/9603046 | Yuri Levin | F.Ya. Khalili (Moscow State University), Yu. Levin (Caltech) | Speed Meter As a Quantum Nondemolition Measuring Device for Force | 7 pages of RevTex, 1 postscript figure | Phys.Rev. D54 (1996) 4735-4737 | 10.1103/PhysRevD.54.4735 | null | gr-qc quant-ph | null | Quantum noise is an important issue for advanced LIGO. Although it is in
principle possible to beat the Standard Quantum Limit (SQL), no practical
recipe has been found yet. This paper dicusses quantum noise in the context of
speedmeter-a devise monitoring the speed of the testmass. The scheme proposed
to overcome SQ... | [
{
"created": "Tue, 26 Mar 1996 01:16:03 GMT",
"version": "v1"
}
] | 2009-10-28 | [
[
"Khalili",
"F. Ya.",
"",
"Moscow State University"
],
[
"Levin",
"Yu.",
"",
"Caltech"
]
] | Quantum noise is an important issue for advanced LIGO. Although it is in principle possible to beat the Standard Quantum Limit (SQL), no practical recipe has been found yet. This paper dicusses quantum noise in the context of speedmeter-a devise monitoring the speed of the testmass. The scheme proposed to overcome SQL ... |
1207.5502 | Ernesto F. Eiroa | Ernesto F. Eiroa, Carlos M. Sendra | Gravitational lensing by massless braneworld black holes | 12 pages, 4 figures; v3: typos corrected; 1 reference updated | Phys.Rev.D86:083009,2012 | 10.1103/PhysRevD.86.083009 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper, we study massless braneworld black holes as gravitational
lenses. We find the weak and the strong deflection limits for the deflection
angle, from which we calculate the positions and magnifications of the images.
We compare the results obtained here with those corresponding to Schwarzschild
and Reissn... | [
{
"created": "Mon, 23 Jul 2012 19:58:14 GMT",
"version": "v1"
},
{
"created": "Fri, 21 Sep 2012 19:12:44 GMT",
"version": "v2"
},
{
"created": "Wed, 24 Oct 2012 17:55:08 GMT",
"version": "v3"
}
] | 2012-10-25 | [
[
"Eiroa",
"Ernesto F.",
""
],
[
"Sendra",
"Carlos M.",
""
]
] | In this paper, we study massless braneworld black holes as gravitational lenses. We find the weak and the strong deflection limits for the deflection angle, from which we calculate the positions and magnifications of the images. We compare the results obtained here with those corresponding to Schwarzschild and Reissner... |
1904.12365 | Peng Wang | Peng Wang, Houwen Wu, Haitang Yang | Thermodynamics and Weak Cosmic Censorship Conjecture in Nonlinear
Electrodynamics Black Holes via Charged Particle Absorption | 27 pages, typos corrected, references added | null | null | CTP-SCU/2019006 | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We first obtain the $D$-dimensional asymptotically AdS charged black hole
solution in general nonlinear electrodynamics (NLED). We then use the
Hamilton-Jacobi method to describe the motion in curved spacetime of a scalar
particle and a fermion, which, as we show, satisfy the same Hamilton-Jacobi
equation. With absor... | [
{
"created": "Sun, 28 Apr 2019 18:45:04 GMT",
"version": "v1"
},
{
"created": "Wed, 8 May 2019 06:16:47 GMT",
"version": "v2"
}
] | 2019-05-09 | [
[
"Wang",
"Peng",
""
],
[
"Wu",
"Houwen",
""
],
[
"Yang",
"Haitang",
""
]
] | We first obtain the $D$-dimensional asymptotically AdS charged black hole solution in general nonlinear electrodynamics (NLED). We then use the Hamilton-Jacobi method to describe the motion in curved spacetime of a scalar particle and a fermion, which, as we show, satisfy the same Hamilton-Jacobi equation. With absorbi... |
2312.10678 | Farruh Atamurotov | Husanboy Hoshimov, Odil Yunusov, Farruh Atamurotov, Mubasher Jamil,
Ahmadjon Abdujabbarov | Weak gravitational lensing and shadow of a GUP-modified Schwarzschild
black hole in the presence of plasma | 22 pages, 13 figures, 2 tables. To appear in Physics of the Dark
Universe | Physics of the Dark Universe, 43 (2024) 101392 | 10.1016/j.dark.2023.101392 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this work, we have studied weak gravitational lensing effect around black
hole and determine shadow radius in GUP-corrected-Schwarzschild spacetime
(S-GUP) in presence of plasma environment. We started with orbits of photons
around black hole in S-GUP. In addition, we have studied shadow and
gravitational weak len... | [
{
"created": "Sun, 17 Dec 2023 10:45:34 GMT",
"version": "v1"
}
] | 2023-12-29 | [
[
"Hoshimov",
"Husanboy",
""
],
[
"Yunusov",
"Odil",
""
],
[
"Atamurotov",
"Farruh",
""
],
[
"Jamil",
"Mubasher",
""
],
[
"Abdujabbarov",
"Ahmadjon",
""
]
] | In this work, we have studied weak gravitational lensing effect around black hole and determine shadow radius in GUP-corrected-Schwarzschild spacetime (S-GUP) in presence of plasma environment. We started with orbits of photons around black hole in S-GUP. In addition, we have studied shadow and gravitational weak lensi... |
1511.01360 | Hyerim Noh | Jai-chan Hwang, Hyerim Noh, Chan-Gyung Park | Fully nonlinear cosmological perturbations of multi-component fluid and
field systems | 18 pages | null | null | null | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present fully nonlinear and exact cosmological perturbation equations in
the presence of multiple components of fluids and minimally coupled scalar
fields. We ignore the tensor-type perturbation. The equations are presented
without taking the temporal gauge condition in the Friedmann background with
general curvat... | [
{
"created": "Tue, 3 Nov 2015 05:27:50 GMT",
"version": "v1"
}
] | 2015-11-05 | [
[
"Hwang",
"Jai-chan",
""
],
[
"Noh",
"Hyerim",
""
],
[
"Park",
"Chan-Gyung",
""
]
] | We present fully nonlinear and exact cosmological perturbation equations in the presence of multiple components of fluids and minimally coupled scalar fields. We ignore the tensor-type perturbation. The equations are presented without taking the temporal gauge condition in the Friedmann background with general curvatur... |
1811.01374 | Thomas Buchert | Asta Heinesen, Pierre Mourier, Thomas Buchert | On the covariance of scalar averaging and backreaction in relativistic
inhomogeneous cosmology | 22 pages; matches published version in CQG | Class. Quantum Grav. 36 (2019) 075001 | 10.1088/1361-6382/ab0618 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We introduce a generalization of the 4-dimensional averaging window function
of Gasperini, Marozzi and Veneziano (2010) that may prove useful for a number
of applications. The covariant nature of spatial scalar averaging schemes to
address the averaging problem in relativistic cosmology is an important
property that ... | [
{
"created": "Sun, 4 Nov 2018 14:14:18 GMT",
"version": "v1"
},
{
"created": "Wed, 27 Feb 2019 16:30:24 GMT",
"version": "v2"
}
] | 2019-02-28 | [
[
"Heinesen",
"Asta",
""
],
[
"Mourier",
"Pierre",
""
],
[
"Buchert",
"Thomas",
""
]
] | We introduce a generalization of the 4-dimensional averaging window function of Gasperini, Marozzi and Veneziano (2010) that may prove useful for a number of applications. The covariant nature of spatial scalar averaging schemes to address the averaging problem in relativistic cosmology is an important property that is... |
1511.03702 | Pierre Fleury | Pierre Fleury | Light propagation in inhomogeneous and anisotropic cosmologies | PhD thesis, 344 pages, contains preprint versions of the articles
arXiv:1302.5308, arXiv:1304.7791, arXiv:1402.3123, arXiv:1406.6254,
arXiv:1410.8473, and arXiv:1508.07903. v2: minor mistake corrected in Sec.
5.2.1 | null | null | null | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The standard model of cosmology is based on the hypothesis that the Universe
is spatially homogeneous and isotropic. When interpreting most observations,
this cosmological principle is applied stricto sensu: the light emitted by
distant sources is assumed to propagate through a Friedmann-Lema\^itre
spacetime. The mai... | [
{
"created": "Tue, 10 Nov 2015 15:14:02 GMT",
"version": "v1"
},
{
"created": "Fri, 12 Jan 2024 12:46:45 GMT",
"version": "v2"
}
] | 2024-01-15 | [
[
"Fleury",
"Pierre",
""
]
] | The standard model of cosmology is based on the hypothesis that the Universe is spatially homogeneous and isotropic. When interpreting most observations, this cosmological principle is applied stricto sensu: the light emitted by distant sources is assumed to propagate through a Friedmann-Lema\^itre spacetime. The main ... |
2012.12189 | Nicolas Herman | Nicolas Herman, Andr\'e F\"uzfa, L\'eonard Lehoucq, S\'ebastien Clesse | Detecting Planetary-mass Primordial Black Holes with Resonant
Electromagnetic Gravitational Wave Detectors | 16 pages, 7 figures | Phys. Rev. D 104, 023524 (2021) | 10.1103/PhysRevD.104.023524 | null | gr-qc astro-ph.CO hep-th | http://creativecommons.org/licenses/by/4.0/ | The possibility to detect gravitational waves (GW) from planetary-mass
primordial black hole (PBH) binaries with electromagnetic (EM) detectors of
high-frequency GWs is investigated. We consider two patented experimental
designs, based on the inverse Gertsenshtein effect, in which incoming GWs
passing through a stati... | [
{
"created": "Tue, 22 Dec 2020 17:31:15 GMT",
"version": "v1"
},
{
"created": "Mon, 21 Jun 2021 14:26:48 GMT",
"version": "v2"
}
] | 2021-07-20 | [
[
"Herman",
"Nicolas",
""
],
[
"Füzfa",
"André",
""
],
[
"Lehoucq",
"Léonard",
""
],
[
"Clesse",
"Sébastien",
""
]
] | The possibility to detect gravitational waves (GW) from planetary-mass primordial black hole (PBH) binaries with electromagnetic (EM) detectors of high-frequency GWs is investigated. We consider two patented experimental designs, based on the inverse Gertsenshtein effect, in which incoming GWs passing through a static ... |
2403.08530 | Ioannis Gialamas | Ioannis D. Gialamas, Theodoros Katsoulas, Kyriakos Tamvakis | Inflation and reheating in quadratic metric-affine gravity with
derivative couplings | 21 pages, 9 figures, matches published version | null | null | null | gr-qc astro-ph.CO hep-ph | http://creativecommons.org/licenses/by/4.0/ | Within the framework of metric-affine theories of gravity, where both the
metric and connection are treated as independent variables, we consider actions
quadratic in the Ricci scalar curvature coupled non-minimally to a scalar field
through derivative couplings. Our analysis delves into the inflationary
predictions,... | [
{
"created": "Wed, 13 Mar 2024 13:40:31 GMT",
"version": "v1"
},
{
"created": "Thu, 6 Jun 2024 09:03:39 GMT",
"version": "v2"
}
] | 2024-06-07 | [
[
"Gialamas",
"Ioannis D.",
""
],
[
"Katsoulas",
"Theodoros",
""
],
[
"Tamvakis",
"Kyriakos",
""
]
] | Within the framework of metric-affine theories of gravity, where both the metric and connection are treated as independent variables, we consider actions quadratic in the Ricci scalar curvature coupled non-minimally to a scalar field through derivative couplings. Our analysis delves into the inflationary predictions, r... |
1709.04252 | Zhu Yi | Zhu Yi and Yungui Gong | Inflationary attractors from nonminimal coupling | 5 pages, 1 figures, prepared for the proceedings of the International
Conference on Gravitation : Joint Conference of ICGAC-XIII and IK15 | null | 10.1051/epjconf/201816806003 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We show explicitly how the E model attractor is obtained from the general
scalar-tensor theory of gravity with arbitrary conformal factors in the strong
coupling limit. By using conformal transformations, any attractor with the
observables $n_s$ and $r$ can be obtained. The existence of attractors imposes
a challenge... | [
{
"created": "Wed, 13 Sep 2017 11:07:31 GMT",
"version": "v1"
}
] | 2018-01-24 | [
[
"Yi",
"Zhu",
""
],
[
"Gong",
"Yungui",
""
]
] | We show explicitly how the E model attractor is obtained from the general scalar-tensor theory of gravity with arbitrary conformal factors in the strong coupling limit. By using conformal transformations, any attractor with the observables $n_s$ and $r$ can be obtained. The existence of attractors imposes a challenge t... |
gr-qc/0612182 | Ettore Minguzzi | E. Minguzzi | On the causal properties of warped product spacetimes | 22 pages, 2 figures, uses the package psfrag | Class.Quant.Grav.24:4457-4474,2007 | 10.1088/0264-9381/24/17/012 | null | gr-qc | null | It is shown that the warped product spacetime P=M *_f H, where H is a
complete Riemannian manifold, and the original spacetime M share necessarily
the same causality properties, the only exceptions being the properties of
causal continuity and causal simplicity which present some subtleties. For
instance, it is shown... | [
{
"created": "Thu, 28 Dec 2006 17:13:29 GMT",
"version": "v1"
},
{
"created": "Wed, 1 Aug 2007 11:45:50 GMT",
"version": "v2"
}
] | 2011-06-24 | [
[
"Minguzzi",
"E.",
""
]
] | It is shown that the warped product spacetime P=M *_f H, where H is a complete Riemannian manifold, and the original spacetime M share necessarily the same causality properties, the only exceptions being the properties of causal continuity and causal simplicity which present some subtleties. For instance, it is shown t... |
2001.10897 | Cecilio Garc\'ia Quir\'os | Cecilio Garc\'ia-Quir\'os and Sascha Husa and Maite Mateu-Lucena and
Angela Borchers | Accelerating the evaluation of inspiral-merger-ringdown waveforms with
adapted grids | null | null | 10.1088/1361-6382/abc36e | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | This paper presents an algorithm to accelerate the evaluation of
inspiral-merger-ringdown waveform models for gravitational wave data analysis.
While the idea can also be applied in the time domain, here we focus on the
frequency domain, which is most typically used to reduced computational cost in
gravitational wave... | [
{
"created": "Wed, 29 Jan 2020 15:30:11 GMT",
"version": "v1"
}
] | 2021-02-03 | [
[
"García-Quirós",
"Cecilio",
""
],
[
"Husa",
"Sascha",
""
],
[
"Mateu-Lucena",
"Maite",
""
],
[
"Borchers",
"Angela",
""
]
] | This paper presents an algorithm to accelerate the evaluation of inspiral-merger-ringdown waveform models for gravitational wave data analysis. While the idea can also be applied in the time domain, here we focus on the frequency domain, which is most typically used to reduced computational cost in gravitational wave d... |
1403.7754 | Sean McWilliams | Kai Sheng Tai, Sean T. McWilliams, and Frans Pretorius | Detecting gravitational waves from highly eccentric compact binaries | 17 pages, 20 figures | Phys. Rev. D 90, 103001 (2014) | 10.1103/PhysRevD.90.103001 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In dense stellar regions, highly eccentric binaries of black holes and
neutron stars can form through various n-body interactions. Such a binary could
emit a significant fraction of its binding energy in a sequence of largely
isolated gravitational wave bursts prior to merger. Given expected black hole
and neutron st... | [
{
"created": "Sun, 30 Mar 2014 13:22:28 GMT",
"version": "v1"
}
] | 2014-11-19 | [
[
"Tai",
"Kai Sheng",
""
],
[
"McWilliams",
"Sean T.",
""
],
[
"Pretorius",
"Frans",
""
]
] | In dense stellar regions, highly eccentric binaries of black holes and neutron stars can form through various n-body interactions. Such a binary could emit a significant fraction of its binding energy in a sequence of largely isolated gravitational wave bursts prior to merger. Given expected black hole and neutron star... |
2110.10147 | Muhammed Saleem C | Muhammed Saleem, Sayantani Datta, K. G. Arun, and B. S. Sathyaprakash | Parametrized tests of post-Newtonian theory using principal component
analysis | 10 pages, 4 figures, 2 tables | null | 10.1103/PhysRevD.105.084062 | null | gr-qc astro-ph.HE | http://creativecommons.org/publicdomain/zero/1.0/ | Searching for departures from general relativity (GR) in more than one
post-Newtonian (PN) phasing coefficients, called a \emph{multi-parameter test},
is known to be ineffective given the sensitivity of the present generation of
gravitational-wave (GW) detectors. Strong degeneracies in the parameter space
make the ou... | [
{
"created": "Tue, 19 Oct 2021 17:58:48 GMT",
"version": "v1"
}
] | 2022-05-11 | [
[
"Saleem",
"Muhammed",
""
],
[
"Datta",
"Sayantani",
""
],
[
"Arun",
"K. G.",
""
],
[
"Sathyaprakash",
"B. S.",
""
]
] | Searching for departures from general relativity (GR) in more than one post-Newtonian (PN) phasing coefficients, called a \emph{multi-parameter test}, is known to be ineffective given the sensitivity of the present generation of gravitational-wave (GW) detectors. Strong degeneracies in the parameter space make the outc... |
2103.02365 | Antonio Figura | A. Figura, F. Li, J.-J. Lu, G.F. Burgio, Z.H. Li, H.-J. Schulze | Binary neutron star merger simulations with hot microscopic equations of
state | Version submitted to PRD | Phys. Rev. D 103, 083012 (2021) | 10.1103/PhysRevD.103.083012 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We perform binary neutron star merger simulations using a newly derived set
of finite-temperature equations of state in the Brueckner-Hartree-Fock
approach. We point out the important and opposite roles of finite temperature
and rotation for stellar stability and systematically investigate the
gravitational-wave prop... | [
{
"created": "Wed, 3 Mar 2021 12:38:07 GMT",
"version": "v1"
}
] | 2021-04-21 | [
[
"Figura",
"A.",
""
],
[
"Li",
"F.",
""
],
[
"Lu",
"J. -J.",
""
],
[
"Burgio",
"G. F.",
""
],
[
"Li",
"Z. H.",
""
],
[
"Schulze",
"H. -J.",
""
]
] | We perform binary neutron star merger simulations using a newly derived set of finite-temperature equations of state in the Brueckner-Hartree-Fock approach. We point out the important and opposite roles of finite temperature and rotation for stellar stability and systematically investigate the gravitational-wave proper... |
0906.2120 | Michal Was | Michal Was (LAL), Marie-Anne Bizouard (LAL), Violette Brisson (LAL),
Fabien Cavalier (LAL), Michel Davier (LAL), Patrice Hello (LAL), Nicolas
Leroy (LAL), Florent Robinet (LAL), Vavoulidis Miltiadis (LAL) | On the background estimation by time slides in a network of
gravitational wave detectors | accepted for publication in CQG | Class.Quant.Grav.27:015005,2010 | 10.1088/0264-9381/27/1/015005 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Time shifting the outputs of Gravitational Wave detectors operating in
coincidence is a convenient way to estimate the background in a search for
short duration signals. However this procedure is limited as increasing
indefinitely the number of time shifts does not provide better estimates. We
show that the false ala... | [
{
"created": "Thu, 11 Jun 2009 14:31:18 GMT",
"version": "v1"
},
{
"created": "Wed, 25 Nov 2009 15:16:37 GMT",
"version": "v2"
}
] | 2010-01-06 | [
[
"Was",
"Michal",
"",
"LAL"
],
[
"Bizouard",
"Marie-Anne",
"",
"LAL"
],
[
"Brisson",
"Violette",
"",
"LAL"
],
[
"Cavalier",
"Fabien",
"",
"LAL"
],
[
"Davier",
"Michel",
"",
"LAL"
],
[
"Hello",
"Patrice",
... | Time shifting the outputs of Gravitational Wave detectors operating in coincidence is a convenient way to estimate the background in a search for short duration signals. However this procedure is limited as increasing indefinitely the number of time shifts does not provide better estimates. We show that the false alarm... |
gr-qc/0405039 | Alan D. Rendall | David Tegankong, Norbert Noutchegueme and Alan D. Rendall | Local existence and continuation criteria for solutions of the
Einstein-Vlasov-scalar field system with surface symmetry | 33 pages, typos corrected, second conclusion of theorem 4.5 and
remark 4.6 removed | J.Hyperbol.Diff.Equat. 1 (2004) 691-724 | null | AEI-2004-037 | gr-qc | null | We prove in the cases of spherical, plane and hyperbolic symmetry a local in
time existence theorem and continuation criteria for cosmological solutions of
the Einstein-Vlasov-scalar field system, with the sources generated by a
distribution function and a scalar field, subject to the Vlasov and wave
equations respec... | [
{
"created": "Fri, 7 May 2004 10:56:29 GMT",
"version": "v1"
},
{
"created": "Tue, 26 Oct 2004 12:34:54 GMT",
"version": "v2"
}
] | 2007-05-23 | [
[
"Tegankong",
"David",
""
],
[
"Noutchegueme",
"Norbert",
""
],
[
"Rendall",
"Alan D.",
""
]
] | We prove in the cases of spherical, plane and hyperbolic symmetry a local in time existence theorem and continuation criteria for cosmological solutions of the Einstein-Vlasov-scalar field system, with the sources generated by a distribution function and a scalar field, subject to the Vlasov and wave equations respecti... |
gr-qc/0005052 | Antonio Teixeira | A.F.F. Teixeira (Centro Brasileiro de Pesquisas Fisicas) | Cosmic crystallography in a circle | 13 pages, 16 figures, corrected commands for graphics | null | null | CBPF-NF-032/00 | gr-qc astro-ph | null | In a circle (an S^1) with circumference 1 assume m objects distributed
pseudo-randomly. In the universal covering R^1 assume the objects replicated
accordingly, and take an interval L>1. In this interval, make the normalized
histogram of the pair separations which are not an integer. The theoretical
(expected) such h... | [
{
"created": "Mon, 15 May 2000 13:43:33 GMT",
"version": "v1"
},
{
"created": "Tue, 11 Jul 2000 23:43:48 GMT",
"version": "v2"
},
{
"created": "Tue, 18 Jul 2000 23:09:39 GMT",
"version": "v3"
},
{
"created": "Thu, 5 Oct 2000 03:07:08 GMT",
"version": "v4"
}
] | 2007-05-23 | [
[
"Teixeira",
"A. F. F.",
"",
"Centro Brasileiro de Pesquisas Fisicas"
]
] | In a circle (an S^1) with circumference 1 assume m objects distributed pseudo-randomly. In the universal covering R^1 assume the objects replicated accordingly, and take an interval L>1. In this interval, make the normalized histogram of the pair separations which are not an integer. The theoretical (expected) such his... |
2210.10571 | Nicholas Loutrel | Nicholas Loutrel, Paolo Pani, Nicol\'as Yunes | Parameterized Post-Einsteinian Framework for Precessing Binaries | 24 pages, 5 figures, published version | Phys. Rev. D 107, 044046 (2023) | 10.1103/PhysRevD.107.044046 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In general relativity, isolated black holes obey the no hair theorems, which
fix the multipolar structure of their exterior spacetime. However, in modified
gravity, or when the compact objects are not black holes, the exterior
spacetime may have a different multipolar structure. When two black holes are
in a binary, ... | [
{
"created": "Wed, 19 Oct 2022 14:11:45 GMT",
"version": "v1"
},
{
"created": "Wed, 22 Feb 2023 09:16:05 GMT",
"version": "v2"
}
] | 2023-02-23 | [
[
"Loutrel",
"Nicholas",
""
],
[
"Pani",
"Paolo",
""
],
[
"Yunes",
"Nicolás",
""
]
] | In general relativity, isolated black holes obey the no hair theorems, which fix the multipolar structure of their exterior spacetime. However, in modified gravity, or when the compact objects are not black holes, the exterior spacetime may have a different multipolar structure. When two black holes are in a binary, th... |
1010.1302 | Massimo Tinto | Massimo Tinto and M\'arcio Eduardo da Silva Alves | LISA Sensitivities to Gravitational Waves from Relativistic Metric
Theories of Gravity | Paper submitted to Physical Review D. It is 20 pages long and
contains 14 figures | Phys.Rev.D82:122003,2010 | 10.1103/PhysRevD.82.122003 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The direct observation of gravitational waves will provide a unique tool for
probing the dynamical properties of highly compact astrophysical objects,
mapping ultra-relativistic regions of space-time, and testing Einstein's
general theory of relativity. LISA (Laser Interferometer Space Antenna), a
joint NASA-ESA miss... | [
{
"created": "Wed, 6 Oct 2010 23:33:59 GMT",
"version": "v1"
}
] | 2011-01-17 | [
[
"Tinto",
"Massimo",
""
],
[
"Alves",
"Márcio Eduardo da Silva",
""
]
] | The direct observation of gravitational waves will provide a unique tool for probing the dynamical properties of highly compact astrophysical objects, mapping ultra-relativistic regions of space-time, and testing Einstein's general theory of relativity. LISA (Laser Interferometer Space Antenna), a joint NASA-ESA missio... |
1607.07791 | Kirill Bronnikov | K.A. Bronnikov, A.M. Galiakhmetov | Wormholes and black universes without phantom fields in Einstein-Cartan
theory | 10 pages, 6 figures | Phys. Rev. D 94, 124006 (2016) | 10.1103/PhysRevD.94.124006 | null | gr-qc astro-ph.HE hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We obtain a family of regular static, spherically symmetric solutions in
Einstein--Cartan theory with an electromagnetic field and a nonminimally
coupled scalar field with the correct sign of kinetic energy density. At
different values of its parameters, the solution, being asemptotically flat at
large values of the ... | [
{
"created": "Tue, 26 Jul 2016 16:39:46 GMT",
"version": "v1"
}
] | 2016-12-07 | [
[
"Bronnikov",
"K. A.",
""
],
[
"Galiakhmetov",
"A. M.",
""
]
] | We obtain a family of regular static, spherically symmetric solutions in Einstein--Cartan theory with an electromagnetic field and a nonminimally coupled scalar field with the correct sign of kinetic energy density. At different values of its parameters, the solution, being asemptotically flat at large values of the ra... |
1607.04473 | Kai Lin | Kai Lin, Wei-Liang Qian, A. B. Pavan and E. Abdalla | (Anti-) de Sitter Electrically Charged Black Hole Solutions in
Higher-Derivative Gravity | null | Europhysics Letters, 114, 60006 (2016) | 10.1209/0295-5075/114/60006 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper, static electrically charged black hole solutions with
cosmological constant are investigated in an Einstein-Hilbert theory of gravity
with additional quadratic curvature terms. Beside the analytic Schwarzschild
(Anti-) de Sitter solutions, non-Schwarzschild (Anti-) de Sitter solutions are
also obtained... | [
{
"created": "Fri, 15 Jul 2016 11:56:27 GMT",
"version": "v1"
}
] | 2016-07-18 | [
[
"Lin",
"Kai",
""
],
[
"Qian",
"Wei-Liang",
""
],
[
"Pavan",
"A. B.",
""
],
[
"Abdalla",
"E.",
""
]
] | In this paper, static electrically charged black hole solutions with cosmological constant are investigated in an Einstein-Hilbert theory of gravity with additional quadratic curvature terms. Beside the analytic Schwarzschild (Anti-) de Sitter solutions, non-Schwarzschild (Anti-) de Sitter solutions are also obtained n... |
1901.08391 | David Brizuela | David Brizuela, Unai Muniain | A moment approach to compute quantum-gravity effects in the primordial
universe | 22 pages, 2 figures | JCAP 04 (2019) 016 | 10.1088/1475-7516/2019/04/016 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | An approach to compute quantum-gravity corrections to the scalar and
tensorial power spectra of the inflationary perturbations is presented. The
analysis of the Wheeler-DeWitt equation is performed by a decomposition of the
wave function into its infinite set of moments, which must obey certain system
of (first-class... | [
{
"created": "Thu, 24 Jan 2019 13:13:08 GMT",
"version": "v1"
},
{
"created": "Tue, 9 Apr 2019 15:37:41 GMT",
"version": "v2"
}
] | 2019-04-10 | [
[
"Brizuela",
"David",
""
],
[
"Muniain",
"Unai",
""
]
] | An approach to compute quantum-gravity corrections to the scalar and tensorial power spectra of the inflationary perturbations is presented. The analysis of the Wheeler-DeWitt equation is performed by a decomposition of the wave function into its infinite set of moments, which must obey certain system of (first-class) ... |
1811.11694 | Jonas Pedro Pereira | Jonas P. Pereira, Germ\'an Lugones | General relativistic surface degrees of freedom in perturbed hybrid
stars | 8 pages. Accepted for publication in ApJ | null | 10.3847/1538-4357/aaf4ba | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study how the nature of a hybrid system (perfect fluid, solid or a mixture
of them) could be related to the induction of general relativistic surface
degrees of freedom on phase-splitting surfaces upon perturbation of its phases.
We work in the scope of phase conversions in the vicinity of sharp phase
transition s... | [
{
"created": "Wed, 28 Nov 2018 17:25:35 GMT",
"version": "v1"
}
] | 2019-01-30 | [
[
"Pereira",
"Jonas P.",
""
],
[
"Lugones",
"Germán",
""
]
] | We study how the nature of a hybrid system (perfect fluid, solid or a mixture of them) could be related to the induction of general relativistic surface degrees of freedom on phase-splitting surfaces upon perturbation of its phases. We work in the scope of phase conversions in the vicinity of sharp phase transition sur... |
1305.5203 | Tomasz Pawlowski | Viqar Husain, Tomasz Pawlowski | A computable framework for Loop Quantum Gravity | 3 pages. To appear in Proceedings of the 13th Marcel Grossmann
Meeting (MG13), Stockholm, Sweden, 1-7 July 2012 | null | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present a non-perturbative quantization of general relativity coupled to
dust and other matter fields. The dust provides a natural time variable,
leading to a physical Hamiltonian with spatial diffeomorphism symmetry. The
methods of loop quantum gravity applied to this model lead to a physical
Hilbert space and Ha... | [
{
"created": "Wed, 22 May 2013 17:17:23 GMT",
"version": "v1"
}
] | 2013-05-23 | [
[
"Husain",
"Viqar",
""
],
[
"Pawlowski",
"Tomasz",
""
]
] | We present a non-perturbative quantization of general relativity coupled to dust and other matter fields. The dust provides a natural time variable, leading to a physical Hamiltonian with spatial diffeomorphism symmetry. The methods of loop quantum gravity applied to this model lead to a physical Hilbert space and Hami... |
2205.01919 | Igor Bogush M.Sc. | Igor Bogush, Dmitri Gal'tsov, Galin Gyulchev, Kirill Kobialko, Petya
Nedkova, Tsvetan Vetsov | Photon surfaces, shadows and accretion disks in gravity with minimally
coupled scalar field | 62 pages, revtex4, 33 figures | null | 10.1103/PhysRevD.106.024034 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this article, we conduct a sequential study of possible observable images
of black hole simulators described by two recently obtained rotating geometries
in Einstein gravity, minimally coupled to a scalar field. One of them,
"Kerr-like" (KL), can be seen as a legitimate alternative to the rotating
Fisher-Janis-New... | [
{
"created": "Wed, 4 May 2022 07:12:51 GMT",
"version": "v1"
}
] | 2022-08-31 | [
[
"Bogush",
"Igor",
""
],
[
"Gal'tsov",
"Dmitri",
""
],
[
"Gyulchev",
"Galin",
""
],
[
"Kobialko",
"Kirill",
""
],
[
"Nedkova",
"Petya",
""
],
[
"Vetsov",
"Tsvetan",
""
]
] | In this article, we conduct a sequential study of possible observable images of black hole simulators described by two recently obtained rotating geometries in Einstein gravity, minimally coupled to a scalar field. One of them, "Kerr-like" (KL), can be seen as a legitimate alternative to the rotating Fisher-Janis-Newma... |
1602.05197 | Geoffrey Comp\`ere | Geoffrey Comp\`ere and Jiang Long | Classical static final state of collapse with supertranslation memory | 35 pages, 7 figures, published version (only refs updated with
respect to v2) | null | 10.1088/0264-9381/33/19/195001 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The Kerr metric models the final classical black hole state after
gravitational collapse of matter and radiation. Any stationary metric which is
close to the Kerr metric has been proven to be diffeomorphic to it. Now, finite
supertranslation diffeomorphisms are symmetries which map solutions to
inequivalent solutions... | [
{
"created": "Tue, 16 Feb 2016 21:00:04 GMT",
"version": "v1"
},
{
"created": "Wed, 3 Aug 2016 13:28:37 GMT",
"version": "v2"
},
{
"created": "Mon, 5 Sep 2016 19:31:54 GMT",
"version": "v3"
}
] | 2016-09-21 | [
[
"Compère",
"Geoffrey",
""
],
[
"Long",
"Jiang",
""
]
] | The Kerr metric models the final classical black hole state after gravitational collapse of matter and radiation. Any stationary metric which is close to the Kerr metric has been proven to be diffeomorphic to it. Now, finite supertranslation diffeomorphisms are symmetries which map solutions to inequivalent solutions a... |
0910.4821 | Haitang Yang | De-You Chen, Haitang Yang and Xiao-Tao Zu | Hawking radiation of black holes in the $z = 4$ Horava-Lifshitz gravity | V2: references added, typo corrected, 16pages | Phys.Lett.B681:463-468,2009 | 10.1016/j.physletb.2009.10.065 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate the Hawking radiation of 3+1 and 4+1 dimensional black holes
in the $z = 4$ Horava-Lifshitz gravity with fermion tunnelling. It turns out
that the Hawking temperatures are recovered and are in consistence with those
obtained by calculating surface gravity of the black holes. For the 3+1
dimensional bla... | [
{
"created": "Mon, 26 Oct 2009 07:49:18 GMT",
"version": "v1"
},
{
"created": "Mon, 9 Nov 2009 06:53:50 GMT",
"version": "v2"
}
] | 2010-02-11 | [
[
"Chen",
"De-You",
""
],
[
"Yang",
"Haitang",
""
],
[
"Zu",
"Xiao-Tao",
""
]
] | We investigate the Hawking radiation of 3+1 and 4+1 dimensional black holes in the $z = 4$ Horava-Lifshitz gravity with fermion tunnelling. It turns out that the Hawking temperatures are recovered and are in consistence with those obtained by calculating surface gravity of the black holes. For the 3+1 dimensional black... |
2306.10383 | C Fairoos | T. K. Safir, A. Naveena Kumara, Shreyas Punacha, Deepak Vaid, C. L.
Ahmed Rizwan, and C. Fairoos | Dynamic Phase Transition of Black Holes in Massive Gravity | 23 pages, 18 figures. Revised thoroughly after peer review. Accepted
for publication in Annals of Physics | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The dynamical properties of small-large black hole phase transition in dRGT
non-linear massive gravity theory are studied based on the underlying free
energy landscape. The free energy landscape is constructed by specifying the
Gibbs free energy to every state, and the free energy profile is used to study
the differe... | [
{
"created": "Sat, 17 Jun 2023 15:54:48 GMT",
"version": "v1"
},
{
"created": "Sun, 17 Sep 2023 14:40:35 GMT",
"version": "v2"
}
] | 2023-09-19 | [
[
"Safir",
"T. K.",
""
],
[
"Kumara",
"A. Naveena",
""
],
[
"Punacha",
"Shreyas",
""
],
[
"Vaid",
"Deepak",
""
],
[
"Rizwan",
"C. L. Ahmed",
""
],
[
"Fairoos",
"C.",
""
]
] | The dynamical properties of small-large black hole phase transition in dRGT non-linear massive gravity theory are studied based on the underlying free energy landscape. The free energy landscape is constructed by specifying the Gibbs free energy to every state, and the free energy profile is used to study the different... |
0908.3205 | Kristin Schleich | Donald M. Witt | Topological Obstructions To Maximal Slices | 19 pages | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A necessary condition for a globally hyperbolic spacetime ${\mathbb R}\times
\Sigma$ to admit a maximal slice is that the Cauchy slice $\Sigma$ admit a
metric with nonnegative scalar curvature, $R\ge 0$. In this paper, the two
cases considered are the closed spatial manifold and the asymptotically flat
spatial manifo... | [
{
"created": "Fri, 21 Aug 2009 20:58:46 GMT",
"version": "v1"
}
] | 2009-08-25 | [
[
"Witt",
"Donald M.",
""
]
] | A necessary condition for a globally hyperbolic spacetime ${\mathbb R}\times \Sigma$ to admit a maximal slice is that the Cauchy slice $\Sigma$ admit a metric with nonnegative scalar curvature, $R\ge 0$. In this paper, the two cases considered are the closed spatial manifold and the asymptotically flat spatial manifold... |
2407.14305 | Hidetomo Hoshino Mr. | Hidetomo Hoshino, Takuya Tsuchiya, Gen Yoneda | Stability analysis and improvement of the covariant BSSN formulation
against the FLRW spacetime background | 16 pages, 3 figures | null | null | null | gr-qc cs.NA math.NA | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this study, we investigate the numerical stability of the covariant
Baumgarte--Shapiro--Shibata--Nakamura (cBSSN) formulation against the
Friedmann--Lema\^itre--Robertson--Walker spacetime. To evaluate the numerical
stability, we calculate the constraint amplification factor by the eigenvalue
analysis of the evolu... | [
{
"created": "Fri, 19 Jul 2024 13:35:52 GMT",
"version": "v1"
}
] | 2024-07-22 | [
[
"Hoshino",
"Hidetomo",
""
],
[
"Tsuchiya",
"Takuya",
""
],
[
"Yoneda",
"Gen",
""
]
] | In this study, we investigate the numerical stability of the covariant Baumgarte--Shapiro--Shibata--Nakamura (cBSSN) formulation against the Friedmann--Lema\^itre--Robertson--Walker spacetime. To evaluate the numerical stability, we calculate the constraint amplification factor by the eigenvalue analysis of the evoluti... |
1710.06607 | Michal Bejger | Michal Bejger | Status of the continuous gravitational wave searches in the Advanced
Detector Era | 8 pages, 3 figures (summary talk at the Rencontres de Moriond 2017
Gravitation session) | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Periodic (almost monochromatic) gravitational waves emitted by rotating,
asymmetric neutron stars are intriguing potential signals in the sensitivity
band of Advanced LIGO and Advanced Virgo detectors. These signals are related
to elastic and magnetic stresses in the neutron-star interior, as well as to
various possi... | [
{
"created": "Wed, 18 Oct 2017 07:48:29 GMT",
"version": "v1"
}
] | 2017-10-19 | [
[
"Bejger",
"Michal",
""
]
] | Periodic (almost monochromatic) gravitational waves emitted by rotating, asymmetric neutron stars are intriguing potential signals in the sensitivity band of Advanced LIGO and Advanced Virgo detectors. These signals are related to elastic and magnetic stresses in the neutron-star interior, as well as to various possibl... |
2109.05027 | Jo\~ao M. Oliveira | Carlos A. R. Herdeiro, Jo\~ao M. S. Oliveira, Alexandre M. Pombo,
Eugen Radu | Virial identities in relativistic gravity: 1D effective actions and the
role of boundary terms | 27 pages, 1 figure | null | 10.1103/PhysRevD.104.104051 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Virial (aka scaling) identities are integral identities that are useful for a
variety of purposes in non-linear field theories, including establishing no-go
theorems for solitonic and black hole solutions, as well as for checking the
accuracy of numerical solutions. In this paper, we provide a pedagogical
rationale f... | [
{
"created": "Fri, 10 Sep 2021 18:00:01 GMT",
"version": "v1"
}
] | 2021-12-01 | [
[
"Herdeiro",
"Carlos A. R.",
""
],
[
"Oliveira",
"João M. S.",
""
],
[
"Pombo",
"Alexandre M.",
""
],
[
"Radu",
"Eugen",
""
]
] | Virial (aka scaling) identities are integral identities that are useful for a variety of purposes in non-linear field theories, including establishing no-go theorems for solitonic and black hole solutions, as well as for checking the accuracy of numerical solutions. In this paper, we provide a pedagogical rationale for... |
2006.10991 | Christiane Klein | Stefan Hollands, Christiane Klein and Jochen Zahn | Quantum stress tensor at the Cauchy horizon of
Reissner-Nordstr\"om-deSitter spacetime | Correction to eq. 28; version as published in Phys.Rev.D | Phys.Rev.D 102 (2020) 085004 | 10.1103/PhysRevD.102.085004 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The strong cosmic censorship conjecture proposes that starting from generic
initial data on some Cauchy surface, the solutions of the Einstein equation
should not be extendable across the boundary of the domain of dependence of
that surface. For the case of the Reissner-Nordstr\"om-de Sitter spacetime this
means that... | [
{
"created": "Fri, 19 Jun 2020 07:38:45 GMT",
"version": "v1"
},
{
"created": "Wed, 14 Oct 2020 11:13:02 GMT",
"version": "v2"
}
] | 2020-10-15 | [
[
"Hollands",
"Stefan",
""
],
[
"Klein",
"Christiane",
""
],
[
"Zahn",
"Jochen",
""
]
] | The strong cosmic censorship conjecture proposes that starting from generic initial data on some Cauchy surface, the solutions of the Einstein equation should not be extendable across the boundary of the domain of dependence of that surface. For the case of the Reissner-Nordstr\"om-de Sitter spacetime this means that a... |
2004.10505 | Jose Natario | Carolina Figueiredo and Jos\'e Nat\'ario | Riemannian manifolds dual to static spacetimes | 18 pages, 9 figures; v2: minor changes, references added, matches
final published version | Gen. Rel. Grav. 52 (2020) 84 | 10.1007/s10714-020-02736-5 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We establish a one-to-one correspondence between static spacetimes and
Riemannian manifolds that maps causal geodesics to geodesics, as suggested by
L. C. Epstein. We then explore constant curvature spacetimes - such as the de
Sitter and the anti-de Sitter universes - and find that they map to constant
curvature Riem... | [
{
"created": "Wed, 22 Apr 2020 11:37:41 GMT",
"version": "v1"
},
{
"created": "Mon, 7 Sep 2020 08:11:03 GMT",
"version": "v2"
}
] | 2020-09-22 | [
[
"Figueiredo",
"Carolina",
""
],
[
"Natário",
"José",
""
]
] | We establish a one-to-one correspondence between static spacetimes and Riemannian manifolds that maps causal geodesics to geodesics, as suggested by L. C. Epstein. We then explore constant curvature spacetimes - such as the de Sitter and the anti-de Sitter universes - and find that they map to constant curvature Rieman... |
1206.4003 | Edward Anderson | Edward Anderson | Kerr-Newman Black Hole Thermodynamical State Space: Blockwise
Coordinates | 4 pages incl 2 figs. Accepted by Gen. Rel. Grav. Replaced with
Accepted version (minor corrections) | null | 10.1007/s10714-013-1603-0 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A coordinate system that blockwise-simplifies the Kerr-Newman black hole's
thermodynamical state space Ruppeiner metric geometry is constructed, with
discussion of the limiting cases corresponding to simpler black holes. It is
deduced that one of the three conformal Killing vectors of the
Reissner-Nordstrom and Kerr ... | [
{
"created": "Mon, 18 Jun 2012 17:46:19 GMT",
"version": "v1"
},
{
"created": "Wed, 3 Apr 2013 20:13:38 GMT",
"version": "v2"
},
{
"created": "Wed, 7 Aug 2013 14:21:29 GMT",
"version": "v3"
},
{
"created": "Fri, 11 Oct 2013 17:00:57 GMT",
"version": "v4"
},
{
"cre... | 2015-06-05 | [
[
"Anderson",
"Edward",
""
]
] | A coordinate system that blockwise-simplifies the Kerr-Newman black hole's thermodynamical state space Ruppeiner metric geometry is constructed, with discussion of the limiting cases corresponding to simpler black holes. It is deduced that one of the three conformal Killing vectors of the Reissner-Nordstrom and Kerr ca... |
gr-qc/9610013 | Lars Andersson | Lars Andersson, Vincent Moncrief, Anthony J. Tromba | On the global evolution problem in 2+1 gravity | 14 pages, amsart | null | 10.1016/S0393-0440(97)87804-7 | null | gr-qc | null | Existence of global CMC foliations of constant curvature 3-dimensional
maximal globally hyperbolic Lorentzian manifolds, containing a constant mean
curvature hypersurface with $\genus(\Sigma) > 1$ is proved. Constant curvature
3-dimensional Lorentzian manifolds can be viewed as solutions to the 2+1 vacuum
Einstein eq... | [
{
"created": "Thu, 10 Oct 1996 02:30:03 GMT",
"version": "v1"
}
] | 2009-10-28 | [
[
"Andersson",
"Lars",
""
],
[
"Moncrief",
"Vincent",
""
],
[
"Tromba",
"Anthony J.",
""
]
] | Existence of global CMC foliations of constant curvature 3-dimensional maximal globally hyperbolic Lorentzian manifolds, containing a constant mean curvature hypersurface with $\genus(\Sigma) > 1$ is proved. Constant curvature 3-dimensional Lorentzian manifolds can be viewed as solutions to the 2+1 vacuum Einstein equa... |
1405.1865 | Arijit Bhattacharyay | Supratik Sarkar and A. Bhattacharyay | Quantum potential induced emergence of massive scalar fields in the
analogue gravity model of a Bose-Einstein condensate | 5 pages, no figures | null | null | null | gr-qc cond-mat.other | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We show here a general approach to include the quantum potential term in the
emergent gravity model of Bose-Einstein condensate by using multiple scales.
Our main result shows the emergence of a massive scalar modulating field at
larger length scales as a result of Lorentz symmetry breaking at the length
scales compa... | [
{
"created": "Thu, 8 May 2014 10:10:35 GMT",
"version": "v1"
},
{
"created": "Tue, 3 Jun 2014 07:20:30 GMT",
"version": "v2"
},
{
"created": "Mon, 9 Jun 2014 12:13:33 GMT",
"version": "v3"
},
{
"created": "Fri, 5 Sep 2014 05:06:18 GMT",
"version": "v4"
}
] | 2014-09-08 | [
[
"Sarkar",
"Supratik",
""
],
[
"Bhattacharyay",
"A.",
""
]
] | We show here a general approach to include the quantum potential term in the emergent gravity model of Bose-Einstein condensate by using multiple scales. Our main result shows the emergence of a massive scalar modulating field at larger length scales as a result of Lorentz symmetry breaking at the length scales compara... |
1908.10602 | Shayesteh Ghaffari | S. Ghaffari, E. Sadri and A. H. Ziaie | Tsallis holographic dark energy in Fractal Universe | 9 pages, 6 figures | null | 10.1142/S0217732320501072 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the cosmological consequences of interacting Tsallis holographic
dark energy model in the framework of the fractal universe, in which, the
Hubble radius is considered as the IR cut-off. We drive the equation of state
(EoS) parameter, deceleration parameter and the evolution equation for the
Tsallis holograph... | [
{
"created": "Wed, 28 Aug 2019 09:08:21 GMT",
"version": "v1"
}
] | 2020-06-24 | [
[
"Ghaffari",
"S.",
""
],
[
"Sadri",
"E.",
""
],
[
"Ziaie",
"A. H.",
""
]
] | We study the cosmological consequences of interacting Tsallis holographic dark energy model in the framework of the fractal universe, in which, the Hubble radius is considered as the IR cut-off. We drive the equation of state (EoS) parameter, deceleration parameter and the evolution equation for the Tsallis holographic... |
1503.05061 | Koray D\"uzta\c{s} | Koray D\"uzta\c{s} | Is there a mode stability paradox for neutrino perturbations of Kerr
black holes? | Major changes, published version | Phys. Rev. D, Vol. 94, 044025, (2016) | 10.1103/PhysRevD.94.044025 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Adopting the notation of Teukolsky and Press, we derive the connection
relation for asymptotic solutions of the massless Dirac equation on a Kerr
background. We show that, unlike bosonic fields, the connection relation for
massless Dirac fields (neutrino) provides a rigorous proof of mode stability.
The same relation... | [
{
"created": "Tue, 17 Mar 2015 14:14:10 GMT",
"version": "v1"
},
{
"created": "Thu, 14 May 2015 12:10:56 GMT",
"version": "v2"
},
{
"created": "Mon, 15 Aug 2016 14:45:55 GMT",
"version": "v3"
}
] | 2016-08-16 | [
[
"Düztaş",
"Koray",
""
]
] | Adopting the notation of Teukolsky and Press, we derive the connection relation for asymptotic solutions of the massless Dirac equation on a Kerr background. We show that, unlike bosonic fields, the connection relation for massless Dirac fields (neutrino) provides a rigorous proof of mode stability. The same relation a... |
2102.00496 | Daniel Su\'arez-Urango | D. Su\'arez-Urango (1), L. A. N\'u\~nez (1 and 2), H. Hern\'andez (1
and 2) ((1) Universidad Industrial de Santander, (2) Universidad de los
Andes) | Relativistic Anisotropic Polytropic Spheres: Physical Acceptability | 6 pages, 2 figures | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this work we evaluate the physical acceptability of relativistic
anisotropic spheres modeled by two polytropic equations of state -- with the
same newtonian limit -- commonly used to describe compact objects in General
Relativity. We integrate numerically the corresponding Lane-Emden equation in
order to get densi... | [
{
"created": "Sun, 31 Jan 2021 17:30:55 GMT",
"version": "v1"
}
] | 2021-02-02 | [
[
"Suárez-Urango",
"D.",
"",
"1 and 2"
],
[
"Núñez",
"L. A.",
"",
"1 and 2"
],
[
"Hernández",
"H.",
"",
"1\n and 2"
]
] | In this work we evaluate the physical acceptability of relativistic anisotropic spheres modeled by two polytropic equations of state -- with the same newtonian limit -- commonly used to describe compact objects in General Relativity. We integrate numerically the corresponding Lane-Emden equation in order to get density... |
2103.07675 | Nigel Bishop | Nigel T. Bishop | Introduction to gravitational wave astronomy | To be published in "Handbook of Gravitational Wave Astronomy" | null | 10.1007/978-981-15-4702-7_1-1 | null | gr-qc | http://creativecommons.org/licenses/by-nc-nd/4.0/ | This chapter provides an overview of gravitational wave (GW) astronomy,
providing background material that underpins the other, more specialized
chapters in this handbook. It starts with a brief historical review of the
development of GW astronomy, from Einstein's prediction of GWs in 1916 to the
first direct detecti... | [
{
"created": "Sat, 13 Mar 2021 10:31:21 GMT",
"version": "v1"
}
] | 2022-07-20 | [
[
"Bishop",
"Nigel T.",
""
]
] | This chapter provides an overview of gravitational wave (GW) astronomy, providing background material that underpins the other, more specialized chapters in this handbook. It starts with a brief historical review of the development of GW astronomy, from Einstein's prediction of GWs in 1916 to the first direct detection... |
gr-qc/0511049 | Edward Glass | Selcuk Bayin, E.N. Glass, Jean P. Krisch | Fractional Boundaries for Fluid Spheres | to appear in J. Math. Phys | J.Math.Phys.47:012501,2006 | 10.1063/1.2158436 | null | gr-qc | null | A single Israel layer can be created when two metrics adjoin with no
continuous metric derivative across the boundary. The properties of the layer
depend only on the two metrics it separates. By using a fractional derivative
match, a family of Israel layers can be created between the same two metrics.
The family is i... | [
{
"created": "Wed, 9 Nov 2005 20:32:39 GMT",
"version": "v1"
},
{
"created": "Fri, 11 Nov 2005 04:13:42 GMT",
"version": "v2"
}
] | 2009-11-11 | [
[
"Bayin",
"Selcuk",
""
],
[
"Glass",
"E. N.",
""
],
[
"Krisch",
"Jean P.",
""
]
] | A single Israel layer can be created when two metrics adjoin with no continuous metric derivative across the boundary. The properties of the layer depend only on the two metrics it separates. By using a fractional derivative match, a family of Israel layers can be created between the same two metrics. The family is ind... |
1603.04115 | Cosimo Bambi | Alejandro Cardenas-Avendano, Jiachen Jiang, Cosimo Bambi | A study for testing the Kerr metric with AGN iron line eclipses | 1+15 pages, 8 figures. v2: refereed version | JCAP 1604:054,2016 | 10.1088/1475-7516/2016/04/054 | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Recently, two of us have studied iron line reverberation mapping to test
black hole candidates, showing that the time information in reverberation
mapping can better constrain the Kerr metric than the time-integrated approach.
Motivated by this finding, here we explore the constraining power of another
time-dependent... | [
{
"created": "Mon, 14 Mar 2016 03:02:42 GMT",
"version": "v1"
},
{
"created": "Thu, 21 Apr 2016 06:36:50 GMT",
"version": "v2"
}
] | 2016-04-29 | [
[
"Cardenas-Avendano",
"Alejandro",
""
],
[
"Jiang",
"Jiachen",
""
],
[
"Bambi",
"Cosimo",
""
]
] | Recently, two of us have studied iron line reverberation mapping to test black hole candidates, showing that the time information in reverberation mapping can better constrain the Kerr metric than the time-integrated approach. Motivated by this finding, here we explore the constraining power of another time-dependent m... |
2405.04921 | Xiao Yan Chew | Xiao Yan Chew, Yun Soo Myung | The simplest model of a scalarized black hole in the
Einstein-Klein-Gordon theory | 18 pages with 8 figures (To match with the published version) | null | 10.1103/PhysRevD.110.044011 | null | gr-qc hep-th | http://creativecommons.org/licenses/by/4.0/ | We investigate scalarized black holes in the Einstein-minimally coupled
scalar theory with a negative potential $V(\phi)=-\alpha^2\phi^6$. The
tachyonic instability is absent from analyzing the linearized scalar equation,
which could not allow for spontaneous scalarization. However, we obtain the
black hole solutions... | [
{
"created": "Wed, 8 May 2024 09:42:44 GMT",
"version": "v1"
},
{
"created": "Mon, 20 May 2024 03:52:04 GMT",
"version": "v2"
},
{
"created": "Mon, 12 Aug 2024 07:39:56 GMT",
"version": "v3"
}
] | 2024-08-13 | [
[
"Chew",
"Xiao Yan",
""
],
[
"Myung",
"Yun Soo",
""
]
] | We investigate scalarized black holes in the Einstein-minimally coupled scalar theory with a negative potential $V(\phi)=-\alpha^2\phi^6$. The tachyonic instability is absent from analyzing the linearized scalar equation, which could not allow for spontaneous scalarization. However, we obtain the black hole solutions w... |
1812.11862 | Shanzhong Han | Shan-Zhong Han, Jie Jiang, Ming Zhang, Wen-Biao Liu | Photon sphere and phase transition of $d$-dimensional ($d\ge5$) charged
Gauss-Bonnet AdS black holes | 8 pages, 15 figures | null | 10.1088/1572-9494/aba259 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Motivated by recent work, nonmonotonic behaviours of photon sphere radius can
be used to reflect black hole phase transition for
Reissner-Nordstr$\ddot{o}$m-AdS (RN-AdS) black holes, we study the case of
five-dimensional charged Gauss-Bonnet-AdS (GB-AdS) black holes in the reduced
parameter space. We find that the no... | [
{
"created": "Thu, 27 Dec 2018 18:33:20 GMT",
"version": "v1"
},
{
"created": "Tue, 1 Jan 2019 20:16:09 GMT",
"version": "v2"
},
{
"created": "Mon, 5 Oct 2020 20:43:23 GMT",
"version": "v3"
},
{
"created": "Wed, 7 Oct 2020 08:42:36 GMT",
"version": "v4"
}
] | 2020-10-08 | [
[
"Han",
"Shan-Zhong",
""
],
[
"Jiang",
"Jie",
""
],
[
"Zhang",
"Ming",
""
],
[
"Liu",
"Wen-Biao",
""
]
] | Motivated by recent work, nonmonotonic behaviours of photon sphere radius can be used to reflect black hole phase transition for Reissner-Nordstr$\ddot{o}$m-AdS (RN-AdS) black holes, we study the case of five-dimensional charged Gauss-Bonnet-AdS (GB-AdS) black holes in the reduced parameter space. We find that the nonm... |
1308.1233 | Iftikhar Ahmad | Iftikhar Ahmad, Maqsoom Fatima and Najam-ul-Basat | Static Solutions of Einstein's Equations with Spherical Symmetry | 10 pages,3 figures. arXiv admin note: substantial text overlap with
arXiv:1101.4668 by other authors | J. Theor. Phys. 2 (2013)39-48 | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The Schwarzschild solution is a complete solution of Einstein's field
equations for a static spherically symmetric field. The Einstein's field
equations solutions appear in the literature, but in different ways
corresponding to different definitions of the radial coordinate. We attempt to
compare them to the solution... | [
{
"created": "Tue, 6 Aug 2013 10:56:06 GMT",
"version": "v1"
},
{
"created": "Fri, 2 May 2014 06:58:32 GMT",
"version": "v2"
}
] | 2014-05-05 | [
[
"Ahmad",
"Iftikhar",
""
],
[
"Fatima",
"Maqsoom",
""
],
[
"Najam-ul-Basat",
"",
""
]
] | The Schwarzschild solution is a complete solution of Einstein's field equations for a static spherically symmetric field. The Einstein's field equations solutions appear in the literature, but in different ways corresponding to different definitions of the radial coordinate. We attempt to compare them to the solutions ... |
1304.4237 | Shohreh Abdolrahimi | Shohreh Abdolrahimi | Velocity Effects on an Accelerated Unruh-DeWitt Detector | (7 pages) | Class. Quantum Grav. 31 135009 (2014) | 10.1088/0264-9381/31/13/135009 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We analyze the response of an Unruh-DeWitt detector moving along an unbounded
spatial trajectory in a two-dimensional spatial plane with constant independent
magnitudes of both the four-acceleration and of a timelike proper time
derivative of the four-accelration. In a Fermi-Walker frame moving with the
detector, the... | [
{
"created": "Mon, 15 Apr 2013 20:00:11 GMT",
"version": "v1"
}
] | 2014-06-17 | [
[
"Abdolrahimi",
"Shohreh",
""
]
] | We analyze the response of an Unruh-DeWitt detector moving along an unbounded spatial trajectory in a two-dimensional spatial plane with constant independent magnitudes of both the four-acceleration and of a timelike proper time derivative of the four-accelration. In a Fermi-Walker frame moving with the detector, the d... |
gr-qc/9912029 | Peter Robert Williams | P. R. Williams, B. F. Schutz | An efficient Matched Filtering Algorithm for the Detection of Continuous
Gravitational Wave Signals | 4 pages, text only, accepted for publication in the proceedings of
the 3rd Amaldi conference on gravitational waves | null | 10.1063/1.1291918 | null | gr-qc | null | We describe an efficient method of matched filtering over long (greater than
1 day) time baselines starting from Fourier transforms of short durations
(roughly 30 minutes) of the data stream. This method plays a crucial role in
the search algorithm developed by Schutz and Papa for the detection of
continuous gravitat... | [
{
"created": "Wed, 8 Dec 1999 14:11:31 GMT",
"version": "v1"
}
] | 2009-10-31 | [
[
"Williams",
"P. R.",
""
],
[
"Schutz",
"B. F.",
""
]
] | We describe an efficient method of matched filtering over long (greater than 1 day) time baselines starting from Fourier transforms of short durations (roughly 30 minutes) of the data stream. This method plays a crucial role in the search algorithm developed by Schutz and Papa for the detection of continuous gravitatio... |
gr-qc/9403037 | null | P.F. Gonzalez-Diaz | Radiation Field on Superspace | 13, IMAFF-RC-01-94# | null | null | null | gr-qc | null | We study the dynamics of multiwormhole configurations within the framework of
the Euclidean Polyakov approach to string theory, incorporating a modification
to the Hamiltonian which makes it impossible to interpret the Coleman Alpha
parameters of the effective interactions as a quantum field on superspace,
reducible ... | [
{
"created": "Fri, 18 Mar 1994 17:11:05 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Gonzalez-Diaz",
"P. F.",
""
]
] | We study the dynamics of multiwormhole configurations within the framework of the Euclidean Polyakov approach to string theory, incorporating a modification to the Hamiltonian which makes it impossible to interpret the Coleman Alpha parameters of the effective interactions as a quantum field on superspace, reducible to... |
1105.0765 | Laszlo Arpad Gergely | Zsolt Horv\'ath, L\'aszl\'o \'A. Gergely, Zolt\'an Keresztes, Tiberiu
Harko, Francisco S. N. Lobo | Constraining Ho\v{r}ava-Lifshitz gravity by weak and strong
gravitational lensing | 11 pages, 6 figures, introductory part and reference list changed on
referee request, results expanded. Published version | Phys.Rev.D84:083006,2011 | 10.1103/PhysRevD.84.083006 | null | gr-qc astro-ph.GA hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We discuss gravitational lensing in the Kehagias-Sfetsos space-time emerging
in the framework of Ho\v{r}ava-Lifshitz gravity. In weak lensing we show that
there are three regimes, depending on the value of $\bar {\lambda}=1/\omega
d^{2}$, where $\omega $ is the Ho\v{r}ava-Lifshitz parameter and $d$
characterizes the ... | [
{
"created": "Wed, 4 May 2011 08:47:48 GMT",
"version": "v1"
},
{
"created": "Thu, 12 May 2011 08:10:27 GMT",
"version": "v2"
},
{
"created": "Thu, 13 Oct 2011 11:57:50 GMT",
"version": "v3"
}
] | 2011-10-14 | [
[
"Horváth",
"Zsolt",
""
],
[
"Gergely",
"László Á.",
""
],
[
"Keresztes",
"Zoltán",
""
],
[
"Harko",
"Tiberiu",
""
],
[
"Lobo",
"Francisco S. N.",
""
]
] | We discuss gravitational lensing in the Kehagias-Sfetsos space-time emerging in the framework of Ho\v{r}ava-Lifshitz gravity. In weak lensing we show that there are three regimes, depending on the value of $\bar {\lambda}=1/\omega d^{2}$, where $\omega $ is the Ho\v{r}ava-Lifshitz parameter and $d$ characterizes the le... |
2305.17411 | Yiqian Chen | Yiqian Chen, Peng Wang, Houwen Wu, Haitang Yang | Gravitational Lensing by Born-Infeld Naked Singularities | 7 figures, 2 tables | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We examine the gravitational lensing phenomenon caused by photon spheres in
the Born-Infeld naked singularity spacetime, where gravity is coupled with
Born-Infeld electrodynamics. Specifically, our focus lies on relativistic
images originating from a point-like light source generated by strong
gravitational lensing n... | [
{
"created": "Sat, 27 May 2023 08:34:00 GMT",
"version": "v1"
}
] | 2023-05-30 | [
[
"Chen",
"Yiqian",
""
],
[
"Wang",
"Peng",
""
],
[
"Wu",
"Houwen",
""
],
[
"Yang",
"Haitang",
""
]
] | We examine the gravitational lensing phenomenon caused by photon spheres in the Born-Infeld naked singularity spacetime, where gravity is coupled with Born-Infeld electrodynamics. Specifically, our focus lies on relativistic images originating from a point-like light source generated by strong gravitational lensing nea... |
1504.03545 | Luca Fabbri | Luca Fabbri, Stefano Vignolo | A torsional completion of gravity for Dirac matter fields and its
applications to neutrino oscillations | 4 pages | Mod.Phys.Lett.A31:1650014(2016) | 10.1142/S0217732316500140 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper, we consider the torsional completion of gravitation for an
underlying background filled with Dirac fields, applying it to the problem of
neutrino oscillations: we discuss the effects of the induced torsional
interactions as corrections to the neutrino oscillation mechanism.
| [
{
"created": "Tue, 14 Apr 2015 13:51:10 GMT",
"version": "v1"
},
{
"created": "Sat, 9 Jan 2016 03:27:47 GMT",
"version": "v2"
}
] | 2016-01-26 | [
[
"Fabbri",
"Luca",
""
],
[
"Vignolo",
"Stefano",
""
]
] | In this paper, we consider the torsional completion of gravitation for an underlying background filled with Dirac fields, applying it to the problem of neutrino oscillations: we discuss the effects of the induced torsional interactions as corrections to the neutrino oscillation mechanism. |
2102.10816 | Margaret Millhouse | Yi Shuen C. Lee, Margaret Millhouse, Andrew Melatos | Enhancing gravitational-wave burst detection confidence in expanded
detector networks with the BayesWave pipeline | 13 pages, 7 figures, accepted for publication in Physical Review D | null | 10.1103/PhysRevD.103.062002 | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | The global gravitational-wave detector network achieves higher detection
rates, better parameter estimates, and more accurate sky localisation, as the
number of detectors, $\mathcal{I}$ increases. This paper quantifies network
performance as a function of $\mathcal{I}$ for BayesWave, a source-agnostic,
wavelet-based,... | [
{
"created": "Mon, 22 Feb 2021 08:07:39 GMT",
"version": "v1"
}
] | 2021-03-31 | [
[
"Lee",
"Yi Shuen C.",
""
],
[
"Millhouse",
"Margaret",
""
],
[
"Melatos",
"Andrew",
""
]
] | The global gravitational-wave detector network achieves higher detection rates, better parameter estimates, and more accurate sky localisation, as the number of detectors, $\mathcal{I}$ increases. This paper quantifies network performance as a function of $\mathcal{I}$ for BayesWave, a source-agnostic, wavelet-based, B... |
2207.14726 | Haida Li | Haida Li, Shengzhi Li, Yongge Ma | Connection Dynamics of Reduced 5-dimensional Kaluza-Klein Theory and Its
Deparametrization | null | null | 10.1103/PhysRevD.107.024047 | null | gr-qc hep-th | http://creativecommons.org/licenses/by/4.0/ | The connection dynamics of the 5-dimensional Kaluza-Klein theory reduced on
4-dimensional spacetime is obtained by performing the Hamiltonian analysis and
canonical transformations. Deparametrization is achieved in the spherically
symmetric model of the theory without introducing additional matter fields
beyond the 5... | [
{
"created": "Fri, 29 Jul 2022 14:59:57 GMT",
"version": "v1"
}
] | 2023-02-15 | [
[
"Li",
"Haida",
""
],
[
"Li",
"Shengzhi",
""
],
[
"Ma",
"Yongge",
""
]
] | The connection dynamics of the 5-dimensional Kaluza-Klein theory reduced on 4-dimensional spacetime is obtained by performing the Hamiltonian analysis and canonical transformations. Deparametrization is achieved in the spherically symmetric model of the theory without introducing additional matter fields beyond the 5-d... |
1512.08029 | Emil Nissimov | Eduardo Guendelman, Emil Nissimov, Svetlana Pacheva and Michail
Stoilov | Kruskal-Penrose Formalism for Lightlike Thin-Shell Wormholes | 14 pages, few typos corrected, version to be appear in "Springer
Proceedings in Mathematics and Statistics", vol.191, ed. V. Dobrev, Springer
(2016) | Springer Proceedings in Mathematics and Statistics, vol.191 (2016)
245-259 | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The original formulation of the "Einstein-Rosen bridge" in the classic paper
of Einstein and Rosen (1935) is historically the first example of a static
spherically-symmetric wormhole solution. It is not equivalent to the concept of
the dynamical and non-traversable Schwarzschild wormhole, also called
"Einstein-Rosen ... | [
{
"created": "Fri, 25 Dec 2015 19:08:53 GMT",
"version": "v1"
},
{
"created": "Sat, 22 Oct 2016 16:44:02 GMT",
"version": "v2"
}
] | 2017-08-01 | [
[
"Guendelman",
"Eduardo",
""
],
[
"Nissimov",
"Emil",
""
],
[
"Pacheva",
"Svetlana",
""
],
[
"Stoilov",
"Michail",
""
]
] | The original formulation of the "Einstein-Rosen bridge" in the classic paper of Einstein and Rosen (1935) is historically the first example of a static spherically-symmetric wormhole solution. It is not equivalent to the concept of the dynamical and non-traversable Schwarzschild wormhole, also called "Einstein-Rosen br... |
1805.02504 | Alexandre Gavrilik | A.M. Gavrilik, I.I. Kachurik, M.V. Khelashvili, A.V. Nazarenko | Condensate of $\mu$-Bose gas as a model of dark matter | 17 pages, 2 figures; two refs. corrected, published in Physica A.
arXiv admin note: substantial text overlap with arXiv:1709.05931 | Physica A 506, pp. 835-843 (2018) | 10.1016/j.physa.2018.05.001 | null | gr-qc astro-ph.GA cond-mat.quant-gas hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Though very popular, Bose-Einstein condensate models of dark matter have some
difficulties. Here we propose the so-called $\mu$-Bose gas model ($\mu$-BGM) as
a model of dark matter, able to treat weak points. Within $\mu$-BGM, the
$\mu$-dependence of thermodynamics arises through the respective $\mu$-calculus
(it gen... | [
{
"created": "Thu, 3 May 2018 20:01:26 GMT",
"version": "v1"
},
{
"created": "Thu, 31 May 2018 12:31:34 GMT",
"version": "v2"
}
] | 2018-06-04 | [
[
"Gavrilik",
"A. M.",
""
],
[
"Kachurik",
"I. I.",
""
],
[
"Khelashvili",
"M. V.",
""
],
[
"Nazarenko",
"A. V.",
""
]
] | Though very popular, Bose-Einstein condensate models of dark matter have some difficulties. Here we propose the so-called $\mu$-Bose gas model ($\mu$-BGM) as a model of dark matter, able to treat weak points. Within $\mu$-BGM, the $\mu$-dependence of thermodynamics arises through the respective $\mu$-calculus (it gener... |
0805.1998 | Florian Kuhnel | Florian Kuhnel and Dominik J. Schwarz | Stochastic Inflation and Dimensional Reduction | 4 pages, 1 figure; v2: minor changes; v3: revised and extended | Phys.Rev.D78:103501,2008 | 10.1103/PhysRevD.78.103501 | BI-TP 2008/10 | gr-qc astro-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present a replica field-theoretic approach to stochastic inflation in
which a manifestation of dimensional reduction is found. The scale above which
the latter dominates grows exponentially fast with time and thus affects
largest super-horizon scales. We find inevitable modifications of the spectral
index on those... | [
{
"created": "Wed, 14 May 2008 13:09:38 GMT",
"version": "v1"
},
{
"created": "Thu, 15 May 2008 19:00:58 GMT",
"version": "v2"
},
{
"created": "Fri, 31 Oct 2008 15:18:02 GMT",
"version": "v3"
}
] | 2008-11-26 | [
[
"Kuhnel",
"Florian",
""
],
[
"Schwarz",
"Dominik J.",
""
]
] | We present a replica field-theoretic approach to stochastic inflation in which a manifestation of dimensional reduction is found. The scale above which the latter dominates grows exponentially fast with time and thus affects largest super-horizon scales. We find inevitable modifications of the spectral index on those s... |
2205.12036 | Joseph Ntahompagaze | Joseph Ntahompagaze and Amare Abebe and Manasse R. Mbonye | Large-scale structure power spectrum from scalar-tensor gravity | Accepted for publication in International Journal of Modern Physics D | null | 10.1142/S0218271822500717 | null | gr-qc hep-th | http://creativecommons.org/licenses/by/4.0/ | This work deals with the computation of the power spectrum of large-scale
structure using the dynamical system approach for a multi-fluid universe in
scalar-tensor theory of gravity. We use the $1+3$ covariant approach to obtain
evolution equations and study the behavior of the matter power spectrum of
perturbation e... | [
{
"created": "Tue, 24 May 2022 12:43:26 GMT",
"version": "v1"
}
] | 2022-08-31 | [
[
"Ntahompagaze",
"Joseph",
""
],
[
"Abebe",
"Amare",
""
],
[
"Mbonye",
"Manasse R.",
""
]
] | This work deals with the computation of the power spectrum of large-scale structure using the dynamical system approach for a multi-fluid universe in scalar-tensor theory of gravity. We use the $1+3$ covariant approach to obtain evolution equations and study the behavior of the matter power spectrum of perturbation equ... |
0912.0802 | Yungui Gong | Jie Liu, Yungui Gong, Ximing Chen | The dynamical behavior of the Extended Holographic Dark Energy with
Hubble Horizon | 12 pages, 7 figures; minor corrections, PRD in press | Phys.Rev.D81:083536,2010 | 10.1103/PhysRevD.81.083536 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The extended holographic dark energy model with the Hubble horizon as the
infrared cutoff avoids the problem of the circular reasoning of the holographic
dark energy model. Unfortunately, it is hit with the no-go theorem. In this
paper, we consider the extended holographic dark energy model with a potential,
$V(\phi)... | [
{
"created": "Fri, 4 Dec 2009 09:46:07 GMT",
"version": "v1"
},
{
"created": "Tue, 20 Apr 2010 15:12:56 GMT",
"version": "v2"
}
] | 2010-05-12 | [
[
"Liu",
"Jie",
""
],
[
"Gong",
"Yungui",
""
],
[
"Chen",
"Ximing",
""
]
] | The extended holographic dark energy model with the Hubble horizon as the infrared cutoff avoids the problem of the circular reasoning of the holographic dark energy model. Unfortunately, it is hit with the no-go theorem. In this paper, we consider the extended holographic dark energy model with a potential, $V(\phi)$,... |
gr-qc/0602094 | Mir Faizal | Mir Faizal | Some Aspects of Virtual Black Holes | 11 pages, 0 figures, accepted for publication in JETP | JETP. 114: 400, 2012 | 10.1134/S1063776112020045 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper we shall consistently third quantize modified gravity. Then we
shall analyse certain aspects of virtual black holes in this third quantized
modified gravity. We will see how a statistical mechanical origin for the
Bekenstein-Hawking entropy naturally arises in this model. Furthermore, in this
model the ... | [
{
"created": "Thu, 23 Feb 2006 14:08:26 GMT",
"version": "v1"
},
{
"created": "Thu, 3 Nov 2011 13:33:53 GMT",
"version": "v2"
}
] | 2015-06-25 | [
[
"Faizal",
"Mir",
""
]
] | In this paper we shall consistently third quantize modified gravity. Then we shall analyse certain aspects of virtual black holes in this third quantized modified gravity. We will see how a statistical mechanical origin for the Bekenstein-Hawking entropy naturally arises in this model. Furthermore, in this model the ar... |
2404.18548 | Yue Wang | Yue Wang, Qing Gao, Shengqing Gao, Yungui Gong | On the duality in constant-roll inflation | 15 pages | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | There is a duality in the observables $n_s$, $r$ and the inflaton potential
between large and small $\eta_H$ for the constant-roll inflation if the
slow-roll parameter $\epsilon_H$ is negligible. In general, the duality between
$\eta_H$ and $\bar{\eta}_H$ does not hold for the background evolution of the
inflation. F... | [
{
"created": "Mon, 29 Apr 2024 09:40:40 GMT",
"version": "v1"
}
] | 2024-04-30 | [
[
"Wang",
"Yue",
""
],
[
"Gao",
"Qing",
""
],
[
"Gao",
"Shengqing",
""
],
[
"Gong",
"Yungui",
""
]
] | There is a duality in the observables $n_s$, $r$ and the inflaton potential between large and small $\eta_H$ for the constant-roll inflation if the slow-roll parameter $\epsilon_H$ is negligible. In general, the duality between $\eta_H$ and $\bar{\eta}_H$ does not hold for the background evolution of the inflation. For... |
2006.05045 | Pankaj Sheoran | Eva Hackmann, Hemwati Nandan, and Pankaj Sheoran | Particle collisions near static spherically symmetric black holes | References and extra discussion added | null | 10.1016/j.physletb.2020.135850 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | It has been shown by Ba\~{n}ados, Silk and West (BSW) that the center of mass
energy (E_cm) of test particles starting from rest at infinity and colliding
near the horizon of a Schwarzschild black hole is always finite. In this
communication, we extent the BSW scenario and study two particles with
different energies ... | [
{
"created": "Tue, 9 Jun 2020 04:45:30 GMT",
"version": "v1"
},
{
"created": "Thu, 9 Jul 2020 06:27:07 GMT",
"version": "v2"
}
] | 2020-10-28 | [
[
"Hackmann",
"Eva",
""
],
[
"Nandan",
"Hemwati",
""
],
[
"Sheoran",
"Pankaj",
""
]
] | It has been shown by Ba\~{n}ados, Silk and West (BSW) that the center of mass energy (E_cm) of test particles starting from rest at infinity and colliding near the horizon of a Schwarzschild black hole is always finite. In this communication, we extent the BSW scenario and study two particles with different energies co... |
0801.0240 | Luca Bombelli | Roman Sverdlov and Luca Bombelli | Gravity and Matter in Causal Set Theory | 13 pages, no figures; In version 2, friendlier results than in
version 1 are obtained following much shorter derivations | Class.Quant.Grav.26:075011,2009 | 10.1088/0264-9381/26/7/075011 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The goal of this paper is to propose an approach to the formulation of
dynamics for causal sets and coupled matter fields. We start from the continuum
version of the action for a Klein-Gordon field coupled to gravity, and rewrite
it first using quantities that have a direct correspondent in the case of a
causal set, ... | [
{
"created": "Mon, 31 Dec 2007 20:52:14 GMT",
"version": "v1"
},
{
"created": "Sun, 13 Jul 2008 20:57:58 GMT",
"version": "v2"
}
] | 2009-03-24 | [
[
"Sverdlov",
"Roman",
""
],
[
"Bombelli",
"Luca",
""
]
] | The goal of this paper is to propose an approach to the formulation of dynamics for causal sets and coupled matter fields. We start from the continuum version of the action for a Klein-Gordon field coupled to gravity, and rewrite it first using quantities that have a direct correspondent in the case of a causal set, na... |
2005.14241 | Oleg Zaslavskii | O. B. Zaslavskii | Super-Penrose process for extremal rotating neutral white holes | 13 pages. Presentation expanded and improved. To appear in GRG | Gen. Relat. Grav. 52 (2020) 104 | 10.1007/s10714-020-02761-4 | null | gr-qc astro-ph.HE hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider collision of two particles 1 and 2 near the horizon of the
extremal rotating axially symmetric neutral generic black hole producing
particles 3 and 4. We discuss the scenario in which both particles 3 and 4 fall
into a black hole and move in a white hole region. If particle 1 is fine-tuned,
the energy $E_... | [
{
"created": "Thu, 28 May 2020 19:03:49 GMT",
"version": "v1"
},
{
"created": "Mon, 19 Oct 2020 10:38:51 GMT",
"version": "v2"
}
] | 2020-11-11 | [
[
"Zaslavskii",
"O. B.",
""
]
] | We consider collision of two particles 1 and 2 near the horizon of the extremal rotating axially symmetric neutral generic black hole producing particles 3 and 4. We discuss the scenario in which both particles 3 and 4 fall into a black hole and move in a white hole region. If particle 1 is fine-tuned, the energy $E_{c... |
0901.4955 | Bruno Giacomazzo | Luca Baiotti, Bruno Giacomazzo, Luciano Rezzolla | Accurate evolutions of inspiralling neutron-star binaries: assessment of
the truncation error | 13 pages, 5 figures. Minor changes to match published version. Added
figure 5 right panel | Class.Quant.Grav.26:114005,2009 | 10.1088/0264-9381/26/11/114005 | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We have recently presented an investigation in full general relativity of the
dynamics and gravitational-wave emission from binary neutron stars which
inspiral and merge, producing a black hole surrounded by a torus (see
arXiv:0804.0594). We here discuss in more detail the convergence properties of
the results presen... | [
{
"created": "Fri, 30 Jan 2009 19:01:54 GMT",
"version": "v1"
},
{
"created": "Thu, 21 May 2009 10:44:42 GMT",
"version": "v2"
}
] | 2009-06-10 | [
[
"Baiotti",
"Luca",
""
],
[
"Giacomazzo",
"Bruno",
""
],
[
"Rezzolla",
"Luciano",
""
]
] | We have recently presented an investigation in full general relativity of the dynamics and gravitational-wave emission from binary neutron stars which inspiral and merge, producing a black hole surrounded by a torus (see arXiv:0804.0594). We here discuss in more detail the convergence properties of the results presente... |
1602.08949 | Bayram Tekin | Bayram Tekin | Inflation in pure gravity with only massless spin-2 fields | 5 pages,1 figure, reference added, typos corrected | null | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We show that without introducing additional fields or extra degrees of
freedom, a specific higher derivative extension of Einstein's gravity that has
only a massless spin-2 excitation in its perturbative spectrum, has an
inflationary period, a quasi-de Sitter phase with enough number of e-foldings
required to solve t... | [
{
"created": "Mon, 29 Feb 2016 13:19:59 GMT",
"version": "v1"
},
{
"created": "Wed, 2 Mar 2016 13:48:13 GMT",
"version": "v2"
}
] | 2016-03-03 | [
[
"Tekin",
"Bayram",
""
]
] | We show that without introducing additional fields or extra degrees of freedom, a specific higher derivative extension of Einstein's gravity that has only a massless spin-2 excitation in its perturbative spectrum, has an inflationary period, a quasi-de Sitter phase with enough number of e-foldings required to solve the... |
0907.0824 | Samad Khakshournia | S. Khakshournia | On matching LTB and Vaidya spacetimes through a null hypersurface | 5 pages, to appear in GRG | Gen.Rel.Grav.42:381-385,2010 | 10.1007/s10714-009-0858-y | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this work the matching of a LTB interior solution representing dust matter
to the Vaidya exterior solution describing null fluid through a null
hypersurface is studied. Different cases in which one is able to smoothly match
these two solutions to Einstein equations along a null hypesurface are
discussed.
| [
{
"created": "Sun, 5 Jul 2009 05:20:29 GMT",
"version": "v1"
}
] | 2014-11-20 | [
[
"Khakshournia",
"S.",
""
]
] | In this work the matching of a LTB interior solution representing dust matter to the Vaidya exterior solution describing null fluid through a null hypersurface is studied. Different cases in which one is able to smoothly match these two solutions to Einstein equations along a null hypesurface are discussed. |
2204.07983 | Deyou Chen | Chuanhong Gao, Deyou Chen, Chengye Yu, Peng Wang | Chaos bound and its violation in charged Kiselev black hole | 17 pages | Physics Letters B 833 (2022) 137343 | 10.1016/j.physletb.2022.137343 | null | gr-qc hep-th | http://creativecommons.org/licenses/by/4.0/ | The chaos bound in the near-horizon regions has been studied through the
expansions of the metric functions on the horizon. In this paper, we
investigate the chaos bound in the the near-horizon region and at a certain
distance from the horizon of a charged Kiselev black hole. The value of the
Lyapunov exponent is acc... | [
{
"created": "Sun, 17 Apr 2022 11:38:05 GMT",
"version": "v1"
},
{
"created": "Thu, 28 Apr 2022 13:57:50 GMT",
"version": "v2"
}
] | 2022-09-14 | [
[
"Gao",
"Chuanhong",
""
],
[
"Chen",
"Deyou",
""
],
[
"Yu",
"Chengye",
""
],
[
"Wang",
"Peng",
""
]
] | The chaos bound in the near-horizon regions has been studied through the expansions of the metric functions on the horizon. In this paper, we investigate the chaos bound in the the near-horizon region and at a certain distance from the horizon of a charged Kiselev black hole. The value of the Lyapunov exponent is accur... |
0709.1892 | Edward Anderson | Edward Anderson | Records Theory | 29 pages and 1 figure. References updated and Journal Reference added | Int.J.Mod.Phys.D18:635-667,2009 | 10.1142/S0218271809014686 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In quantum gravity, one seeks to combine quantum mechanics and general
relativity. In such attempts, one comes across the `problem of time' impasse:
the notion of time is conceptually different in each of these theories. In this
paper, I consider the timeless records approach toward resolving this. Records
are locali... | [
{
"created": "Wed, 12 Sep 2007 14:51:16 GMT",
"version": "v1"
},
{
"created": "Wed, 10 Oct 2007 17:17:58 GMT",
"version": "v2"
},
{
"created": "Fri, 2 Nov 2007 11:43:15 GMT",
"version": "v3"
},
{
"created": "Tue, 20 Nov 2007 18:15:49 GMT",
"version": "v4"
},
{
"cr... | 2009-09-24 | [
[
"Anderson",
"Edward",
""
]
] | In quantum gravity, one seeks to combine quantum mechanics and general relativity. In such attempts, one comes across the `problem of time' impasse: the notion of time is conceptually different in each of these theories. In this paper, I consider the timeless records approach toward resolving this. Records are localize... |
1307.5885 | Antonia Zipfel | Thomas Thiemann and Antonia Zipfel | Linking covariant and canonical LQG II: Spin foam projector | 62 pages, 14 figures Abstract changed, slightly reorganized, minor
errors corrected | null | 10.1088/0264-9381/31/12/125008 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In a seminal paper, Kaminski, Kisielowski an Lewandowski for the first time
extended the definition of spin foam models to arbitrary boundary graphs. This
is a prerequisite in order to make contact to the canonical formulation of Loop
Quantum Gravity (LQG) whose Hilbert space contains all these graphs. This makes
it ... | [
{
"created": "Mon, 22 Jul 2013 20:56:17 GMT",
"version": "v1"
},
{
"created": "Tue, 26 Nov 2013 11:24:38 GMT",
"version": "v2"
}
] | 2015-06-16 | [
[
"Thiemann",
"Thomas",
""
],
[
"Zipfel",
"Antonia",
""
]
] | In a seminal paper, Kaminski, Kisielowski an Lewandowski for the first time extended the definition of spin foam models to arbitrary boundary graphs. This is a prerequisite in order to make contact to the canonical formulation of Loop Quantum Gravity (LQG) whose Hilbert space contains all these graphs. This makes it fi... |
gr-qc/0604040 | Joseph Henson | Joe Henson | Macroscopic observables and Lorentz violation in discrete quantum
gravity | 15 pages, 1 figure, laTeX | null | null | null | gr-qc | null | This article concerns the fate of local Lorentz invariance in quantum
gravity, particularly for approaches in which a discrete structure replaces
continuum spacetime. Some features of standard quantum mechanics, presented in
a sum-over-histories formulation, are reviewed, and their consequences for such
theories are ... | [
{
"created": "Mon, 10 Apr 2006 10:27:03 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Henson",
"Joe",
""
]
] | This article concerns the fate of local Lorentz invariance in quantum gravity, particularly for approaches in which a discrete structure replaces continuum spacetime. Some features of standard quantum mechanics, presented in a sum-over-histories formulation, are reviewed, and their consequences for such theories are di... |
2207.03995 | Rogerio Teixeira Cavalcanti | Rogerio T. Cavalcanti, Kelvin dos S. Alves and Julio M. Hoff da Silva | Near horizon thermodynamics of hairy black holes from gravitational
decoupling | 11 pages, 8 figures | Universe 8 (2022) 7, 363 | 10.3390/universe8070363 | null | gr-qc hep-th | http://creativecommons.org/licenses/by/4.0/ | The horizon structure and thermodynamics of hairy spherically symmetric black
holes generated by the gravitational decoupling method are carefully
investigated. The temperature and heat capacity of the black hole is
determined, as well as how the hairy parameters affect the thermodynamics. It
allows the analysis of t... | [
{
"created": "Thu, 7 Jul 2022 02:53:48 GMT",
"version": "v1"
}
] | 2022-07-11 | [
[
"Cavalcanti",
"Rogerio T.",
""
],
[
"Alves",
"Kelvin dos S.",
""
],
[
"da Silva",
"Julio M. Hoff",
""
]
] | The horizon structure and thermodynamics of hairy spherically symmetric black holes generated by the gravitational decoupling method are carefully investigated. The temperature and heat capacity of the black hole is determined, as well as how the hairy parameters affect the thermodynamics. It allows the analysis of the... |
0911.3094 | Salvatore Capozziello | Charalampos Bogdanos, Salvatore Capozziello, Mariafelicia De
Laurentis, Savvas Nesseris | Massive, massless and ghost modes of gravitational waves from
higher-order gravity | 11 pages, 3 figures | Astropart.Phys.34:236-244,2010 | 10.1016/j.astropartphys.2010.08.001 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We linearize the field equations for higher order theories that contain
scalar invariants other than the Ricci scalar. We find that besides a massless
spin-2 field (the standard graviton), the theory contains also spin-0 and
spin-2 massive modes with the latter being, in general, ghost modes. Then, we
investigate the... | [
{
"created": "Mon, 16 Nov 2009 17:39:36 GMT",
"version": "v1"
},
{
"created": "Wed, 25 Nov 2009 14:53:37 GMT",
"version": "v2"
},
{
"created": "Tue, 26 Jan 2010 13:42:24 GMT",
"version": "v3"
}
] | 2014-11-20 | [
[
"Bogdanos",
"Charalampos",
""
],
[
"Capozziello",
"Salvatore",
""
],
[
"De Laurentis",
"Mariafelicia",
""
],
[
"Nesseris",
"Savvas",
""
]
] | We linearize the field equations for higher order theories that contain scalar invariants other than the Ricci scalar. We find that besides a massless spin-2 field (the standard graviton), the theory contains also spin-0 and spin-2 massive modes with the latter being, in general, ghost modes. Then, we investigate the p... |
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