id stringlengths 9 13 | submitter stringlengths 1 64 ⌀ | authors stringlengths 5 22.9k | title stringlengths 4 245 | comments stringlengths 1 548 ⌀ | journal-ref stringlengths 4 362 ⌀ | doi stringlengths 12 82 ⌀ | report-no stringlengths 2 281 ⌀ | categories stringclasses 793
values | license stringclasses 9
values | orig_abstract stringlengths 24 1.95k | versions listlengths 1 30 | update_date stringlengths 10 10 | authors_parsed listlengths 1 1.74k | abstract stringlengths 21 1.95k |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1504.07983 | John Bayron Orjuela Quintana | Juan C. Bueno-S\'anchez, J. Bayron Orjuela-Quintana and C\'esar A.
Valenzuela-Toledo | On the coupling of vector fields to the Gauss-Bonnet invariant | Typos corrected, some clarifying comments added. Matches the
published version | Rev. Acad. Colomb. Cienc. Ex. Fis. Nat., 45(174), 67-82 (2021) | 10.18257/raccefyn.1146 | null | gr-qc astro-ph.CO hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Inflationary models including vector fields have attracted a great deal of
attention over the past decade. Such an interest owes to the fact that they
might contribute to, or even be fully responsible for, the curvature
perturbation imprinted in the cosmic microwave background. However, the
necessary breaking of the ... | [
{
"created": "Wed, 29 Apr 2015 04:11:18 GMT",
"version": "v1"
},
{
"created": "Mon, 7 Dec 2020 08:09:31 GMT",
"version": "v2"
},
{
"created": "Wed, 9 Dec 2020 16:28:28 GMT",
"version": "v3"
},
{
"created": "Wed, 21 Apr 2021 14:36:31 GMT",
"version": "v4"
}
] | 2023-04-17 | [
[
"Bueno-Sánchez",
"Juan C.",
""
],
[
"Orjuela-Quintana",
"J. Bayron",
""
],
[
"Valenzuela-Toledo",
"César A.",
""
]
] | Inflationary models including vector fields have attracted a great deal of attention over the past decade. Such an interest owes to the fact that they might contribute to, or even be fully responsible for, the curvature perturbation imprinted in the cosmic microwave background. However, the necessary breaking of the ve... |
1111.5785 | Bogus{\l}aw Broda | Bogus{\l}aw Broda | "Microscopic" approach to the Ricci dark energy | 7 pages | International Journal of Modern Physics D 21 No. 6 (2012) 1250053 | 10.1142/S0218271812500538 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A derivation of the Ricci dark energy from quantum field theory of
fluctuating "matter" fields in a classical gravitational background is
presented. The coupling to the dark energy, the parameter 'a', is estimated in
the framework of our formalism, and qualitatively it appears to be within
observational expectations.... | [
{
"created": "Thu, 24 Nov 2011 14:52:34 GMT",
"version": "v1"
},
{
"created": "Fri, 2 Dec 2011 15:05:38 GMT",
"version": "v2"
},
{
"created": "Tue, 5 Jun 2012 14:15:03 GMT",
"version": "v3"
}
] | 2012-06-06 | [
[
"Broda",
"Bogusław",
""
]
] | A derivation of the Ricci dark energy from quantum field theory of fluctuating "matter" fields in a classical gravitational background is presented. The coupling to the dark energy, the parameter 'a', is estimated in the framework of our formalism, and qualitatively it appears to be within observational expectations. |
gr-qc/0003037 | Laszlo A. Gergely | L\'aszl\'o \'A. Gergely | Second post-Newtonian radiative evolution of the relative orientations
of angular momenta in spinning compact binaries | 8 pages, to appear in Phys. Rev. D | Phys.Rev. D62 (2000) 024007 | 10.1103/PhysRevD.62.024007 | null | gr-qc | null | The radiative evolution of the relative orientations of the spin and orbital
angular momentum vectors ${\bf S}_{{\bf 1}}, {\bf S}_{{\bf 2}}$ and ${\bf L}$,
characterizing a binary system on eccentric orbit is studied up to the second
post-Newtonian order. As an intermediate result, all Burke-Thorne type
instantaneous... | [
{
"created": "Thu, 9 Mar 2000 14:31:41 GMT",
"version": "v1"
}
] | 2009-10-31 | [
[
"Gergely",
"László Á.",
""
]
] | The radiative evolution of the relative orientations of the spin and orbital angular momentum vectors ${\bf S}_{{\bf 1}}, {\bf S}_{{\bf 2}}$ and ${\bf L}$, characterizing a binary system on eccentric orbit is studied up to the second post-Newtonian order. As an intermediate result, all Burke-Thorne type instantaneous r... |
1111.2631 | Mario Novello | M. Novello, F. T. Falciano, E. Goulart | Electromagnetic Geometry | null | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We show that Maxwell's electromagnetism can be mapped into the Born-Infeld
theory in a curved space-time, which depends only on the electromagnetic field
in a specific way. This map is valid for any value of the two lorentz
invariants $F$ and $G$ confirming that we have included all possible solutions
of Maxwell's eq... | [
{
"created": "Tue, 8 Nov 2011 17:08:51 GMT",
"version": "v1"
}
] | 2011-11-14 | [
[
"Novello",
"M.",
""
],
[
"Falciano",
"F. T.",
""
],
[
"Goulart",
"E.",
""
]
] | We show that Maxwell's electromagnetism can be mapped into the Born-Infeld theory in a curved space-time, which depends only on the electromagnetic field in a specific way. This map is valid for any value of the two lorentz invariants $F$ and $G$ confirming that we have included all possible solutions of Maxwell's equa... |
1909.10328 | Jackson Levi Said | Celia Escamilla-Rivera and Jackson Levi Said | Cosmological viable models in $f(T,B)$ gravity as solutions to the $H_0$
tension | 21 pages, 8 figures | Class. Quantum Grav. 37 165002 (2020) | 10.1088/1361-6382/ab939c | null | gr-qc astro-ph.CO hep-th physics.data-an | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this work we present a further investigation about Teleparallel Gravity
Cosmology. We demonstrate that according the current astrophysical data
(CC+Pantheon+BAO samplers with late universe measurements SH0ES+H0LiCOW), an
$f(T,B)$ theory can provide another interpretation to the oscillatory behaviour
of the dark en... | [
{
"created": "Fri, 20 Sep 2019 13:50:46 GMT",
"version": "v1"
},
{
"created": "Tue, 2 Jun 2020 09:26:16 GMT",
"version": "v2"
}
] | 2021-05-07 | [
[
"Escamilla-Rivera",
"Celia",
""
],
[
"Said",
"Jackson Levi",
""
]
] | In this work we present a further investigation about Teleparallel Gravity Cosmology. We demonstrate that according the current astrophysical data (CC+Pantheon+BAO samplers with late universe measurements SH0ES+H0LiCOW), an $f(T,B)$ theory can provide another interpretation to the oscillatory behaviour of the dark ener... |
2105.01906 | Chris Stevens | J\"org Frauendiener, Jonathan Hakata, Chris Stevens | Can gravitational waves halt the expansion of the universe? | 25 pages, 19 figures | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We numerically investigate the propagation of plane gravitational waves in
the form of an initial boundary value problem with de Sitter initial data. The
full non-linear Einstein equations with positive cosmological constant
$\lambda$ are written in the Friedrich-Nagy gauge which yields a wellposed
system. The propag... | [
{
"created": "Wed, 5 May 2021 07:41:11 GMT",
"version": "v1"
}
] | 2021-05-06 | [
[
"Frauendiener",
"Jörg",
""
],
[
"Hakata",
"Jonathan",
""
],
[
"Stevens",
"Chris",
""
]
] | We numerically investigate the propagation of plane gravitational waves in the form of an initial boundary value problem with de Sitter initial data. The full non-linear Einstein equations with positive cosmological constant $\lambda$ are written in the Friedrich-Nagy gauge which yields a wellposed system. The propagat... |
1806.02141 | Cosimo Bambi | Cosimo Bambi, Askar B. Abdikamalov, Dimitry Ayzenberg, Zheng Cao,
Honghui Liu, Sourabh Nampalliwar, Ashutosh Tripathi, Jingyi Wang-Ji, Yerong
Xu | RELXILL_NK: a relativistic reflection model for testing Einstein's
gravity | 8 pages, 6 figures. Talk given at the "International Conference on
Quantum Gravity" (26-28 March 2018, Shenzhen, China). To appear in the
conference proceedings | Universe (2018) 4:79 | 10.3390/universe4070079 | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Einstein's theory of general relativity was proposed over 100 years ago and
has successfully passed a large number of observational tests in the weak field
regime. However, the strong field regime is largely unexplored, and there are
many modified and alternative theories that have the same predictions as
Einstein's ... | [
{
"created": "Wed, 6 Jun 2018 12:14:50 GMT",
"version": "v1"
}
] | 2018-07-12 | [
[
"Bambi",
"Cosimo",
""
],
[
"Abdikamalov",
"Askar B.",
""
],
[
"Ayzenberg",
"Dimitry",
""
],
[
"Cao",
"Zheng",
""
],
[
"Liu",
"Honghui",
""
],
[
"Nampalliwar",
"Sourabh",
""
],
[
"Tripathi",
"Ashutosh",
""
... | Einstein's theory of general relativity was proposed over 100 years ago and has successfully passed a large number of observational tests in the weak field regime. However, the strong field regime is largely unexplored, and there are many modified and alternative theories that have the same predictions as Einstein's gr... |
1605.08440 | Shahar Hod | Shahar Hod | The Hawking cascades of gravitons from higher-dimensional Schwarzschild
black holes | 6 pages in Physics Letters B 756, 133 (2016) | Physics Letters B 756, 133 (2016) | 10.1016/j.physletb.2016.03.002 | null | gr-qc astro-ph.HE hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | It has recently been shown that the Hawking evaporation process of
$(3+1)$-dimensional Schwarzschild black holes is characterized by the
dimensionless ratio $\eta\equiv\tau_{\text{gap}}/\tau_{\text{emission}}\gg1$,
where $\tau_{\text{gap}}$ is the characteristic time gap between the emissions
of successive Hawking qu... | [
{
"created": "Thu, 26 May 2016 20:00:07 GMT",
"version": "v1"
}
] | 2016-06-06 | [
[
"Hod",
"Shahar",
""
]
] | It has recently been shown that the Hawking evaporation process of $(3+1)$-dimensional Schwarzschild black holes is characterized by the dimensionless ratio $\eta\equiv\tau_{\text{gap}}/\tau_{\text{emission}}\gg1$, where $\tau_{\text{gap}}$ is the characteristic time gap between the emissions of successive Hawking quan... |
2007.12086 | Dipanjan Dey | Parth Bambhaniya, Divyesh N. Solanki, Dipanjan Dey, Ashok B. Joshi,
Pankaj S. Joshi, Vishwa Patel | Precession of timelike bound orbits in Kerr spacetime | 12 pages, 18 figures | null | 10.1140/epjc/s10052-021-08997-x | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | Astrometric observations of S-stars provide a unique opportunity to probe the
nature of Sagittarius-A* (Sgr-A*). In view of this, it has become important to
understand the nature and behavior of timelike bound trajectories of particles
around a massive central object. It is known now that whereas the Schwarzschild
bl... | [
{
"created": "Thu, 23 Jul 2020 15:50:40 GMT",
"version": "v1"
}
] | 2021-03-17 | [
[
"Bambhaniya",
"Parth",
""
],
[
"Solanki",
"Divyesh N.",
""
],
[
"Dey",
"Dipanjan",
""
],
[
"Joshi",
"Ashok B.",
""
],
[
"Joshi",
"Pankaj S.",
""
],
[
"Patel",
"Vishwa",
""
]
] | Astrometric observations of S-stars provide a unique opportunity to probe the nature of Sagittarius-A* (Sgr-A*). In view of this, it has become important to understand the nature and behavior of timelike bound trajectories of particles around a massive central object. It is known now that whereas the Schwarzschild blac... |
gr-qc/0101069 | Jerzy Lewandowski | Marcin Bobie\'nski, Jerzy Lewandowski and Mariusz Mroczek | A 2-Surface Quantization of the Lorentzian Gravity | QG1-a session of MG9 | null | 10.1142/9789812777386_0215 | null | gr-qc | null | This is a contribution to the MG9 session QG1-a. A new quantum representation
for the Lorentzian gravity is created from the Pullin vaccum by the operators
assigned to 2-complexes. The representation uses the original, spinorial
Ashtekar variables, the reality conditions are well posed and Thiemann's
Hamiltonian is w... | [
{
"created": "Wed, 17 Jan 2001 12:11:36 GMT",
"version": "v1"
}
] | 2017-08-23 | [
[
"Bobieński",
"Marcin",
""
],
[
"Lewandowski",
"Jerzy",
""
],
[
"Mroczek",
"Mariusz",
""
]
] | This is a contribution to the MG9 session QG1-a. A new quantum representation for the Lorentzian gravity is created from the Pullin vaccum by the operators assigned to 2-complexes. The representation uses the original, spinorial Ashtekar variables, the reality conditions are well posed and Thiemann's Hamiltonian is wel... |
gr-qc/0002052 | Chamula Marian | V. Skalsky | The gauge factor increase and the hypothetical emerging of the matter
objects on the horizon in the standard model of universe | 7 pages | Vedecke prace Materialovo-technologickej fakulty Slovenskej
technickej univerzity v Bratislave so sidlom v Trnave, vol. 6, Slovak
University of Technology Press, Bratislava 2000, ISBN 80-227-1424-0, pp.
119-124 | null | null | gr-qc | null | In the standard model of universe the increase in mass of our observed
expansive and isotropic relativistic Universe is explained by the hypothetical
assumption of matter objects emerging on the horizon (of the most remote
visibility). However, the mathematical-physical analysis of the increase of
Universe gauge fact... | [
{
"created": "Tue, 15 Feb 2000 15:09:12 GMT",
"version": "v1"
},
{
"created": "Mon, 25 Sep 2000 21:15:08 GMT",
"version": "v2"
}
] | 2008-12-19 | [
[
"Skalsky",
"V.",
""
]
] | In the standard model of universe the increase in mass of our observed expansive and isotropic relativistic Universe is explained by the hypothetical assumption of matter objects emerging on the horizon (of the most remote visibility). However, the mathematical-physical analysis of the increase of Universe gauge factor... |
0809.0375 | Neven Bilic | Neven Bilic, Gary B. Tupper, and Raoul D. Viollier | Cosmological tachyon condensation | 22 pages, 3 figures, title changed, typos corrected, accepted in
Phys. Rev. D | Phys.Rev.D80:023515,2009 | 10.1103/PhysRevD.80.023515 | null | gr-qc astro-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider the prospects for dark matter/energy unification in k-essence
type theories. General mappings are established between the k-essence scalar
field, the hydrodynamic and braneworld descriptions. We develop an extension of
the general relativistic dust model that incorporates the effects of both
pressure and ... | [
{
"created": "Tue, 2 Sep 2008 08:45:39 GMT",
"version": "v1"
},
{
"created": "Sat, 27 Sep 2008 16:53:47 GMT",
"version": "v2"
},
{
"created": "Thu, 26 Mar 2009 08:39:48 GMT",
"version": "v3"
},
{
"created": "Thu, 9 Jul 2009 10:50:23 GMT",
"version": "v4"
}
] | 2009-08-11 | [
[
"Bilic",
"Neven",
""
],
[
"Tupper",
"Gary B.",
""
],
[
"Viollier",
"Raoul D.",
""
]
] | We consider the prospects for dark matter/energy unification in k-essence type theories. General mappings are established between the k-essence scalar field, the hydrodynamic and braneworld descriptions. We develop an extension of the general relativistic dust model that incorporates the effects of both pressure and th... |
1812.01854 | Liu Zhao | Chuanyi Wang and Liu Zhao | f(Ricci) gravity | 12 pages. v2: important corrections and new references. v3: removing
a redundant term in eq. (8) and more references | null | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | f(Ricci) gravity is a special kind of higher curvature gravity whose bulk
Lagrangian density is the trace of a matrix-valued function of the Ricci
tensor. It is shown that, under some mild constraints, f(Ricci) gravity admits
Einstein manifolds as exact vacuum solutions, and can be ghost free around
maximally symmetr... | [
{
"created": "Wed, 5 Dec 2018 08:29:05 GMT",
"version": "v1"
},
{
"created": "Thu, 6 Dec 2018 03:15:34 GMT",
"version": "v2"
},
{
"created": "Tue, 18 Dec 2018 03:13:28 GMT",
"version": "v3"
}
] | 2018-12-19 | [
[
"Wang",
"Chuanyi",
""
],
[
"Zhao",
"Liu",
""
]
] | f(Ricci) gravity is a special kind of higher curvature gravity whose bulk Lagrangian density is the trace of a matrix-valued function of the Ricci tensor. It is shown that, under some mild constraints, f(Ricci) gravity admits Einstein manifolds as exact vacuum solutions, and can be ghost free around maximally symmetric... |
0905.1409 | Chen Songbai | Songbai Chen, Jiliang Jing | Quasinormal modes of a black hole in the deformed Ho\v{r}ava-Lifshitz
gravity | 9 pages, 3 figures and 4 tables | Phys.Lett. B687:124-128, 2010 | 10.1016/j.physletb.2010.03.013 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the quasinormal modes of the massless scalar perturbation in the
background of a deformed black hole in the Ho\v{r}ava-Lifshitz gravity with
coupling constant $\lambda=1$. Our results show that the quasinormal
frequencies depend on the parameter in the Ho\v{r}ava-Lifshitz gravity and the
behavior of the quas... | [
{
"created": "Sat, 9 May 2009 13:50:39 GMT",
"version": "v1"
},
{
"created": "Wed, 31 Mar 2010 01:16:59 GMT",
"version": "v2"
}
] | 2015-03-13 | [
[
"Chen",
"Songbai",
""
],
[
"Jing",
"Jiliang",
""
]
] | We study the quasinormal modes of the massless scalar perturbation in the background of a deformed black hole in the Ho\v{r}ava-Lifshitz gravity with coupling constant $\lambda=1$. Our results show that the quasinormal frequencies depend on the parameter in the Ho\v{r}ava-Lifshitz gravity and the behavior of the quasin... |
1406.6399 | Miguel Gustavo de Campos Batista | M. Campos | The cosmic censorship conjecture in a higher dimensional spacetime with
an interacting vacuum energy | 16 pages, 3 figures | null | 10.1007/s10773-015-2813-x | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Presently, the inclusion of the vacuum energy in the energy momentum tensor,
and the inclusion of the extra dimensions in the spacetime, can not be rule out
of the research in gravitation. In this work we study the influence of the
vacuum energy in the collapse process of a stellar fluid, and consequently for
the cos... | [
{
"created": "Tue, 24 Jun 2014 21:52:02 GMT",
"version": "v1"
},
{
"created": "Wed, 28 Jan 2015 23:21:00 GMT",
"version": "v2"
}
] | 2015-10-28 | [
[
"Campos",
"M.",
""
]
] | Presently, the inclusion of the vacuum energy in the energy momentum tensor, and the inclusion of the extra dimensions in the spacetime, can not be rule out of the research in gravitation. In this work we study the influence of the vacuum energy in the collapse process of a stellar fluid, and consequently for the cosmi... |
1105.5314 | Barun Majumder | Barun Majumder | Quantum Black Hole and the Modified Uncertainty Principle | 7 pages, comments / criticisms / suggestions welcome. Accepted for
publication in Physics Letters B | Phys. Lett. B 701 (2011) 384-387 | 10.1016/j.physletb.2011.05.076 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Recently Ali et al. (2009) proposed a Generalized Uncertainty Principle (or
GUP) with a linear term in momentum (accompanied by Plank length). Inspired by
this idea we examine the Wheeler-DeWitt equation for a Schwarzschild black hole
with a modified Heisenberg algebra which has a linear term in momentum. We
found th... | [
{
"created": "Thu, 26 May 2011 14:49:03 GMT",
"version": "v1"
},
{
"created": "Tue, 31 May 2011 16:38:21 GMT",
"version": "v2"
}
] | 2011-06-28 | [
[
"Majumder",
"Barun",
""
]
] | Recently Ali et al. (2009) proposed a Generalized Uncertainty Principle (or GUP) with a linear term in momentum (accompanied by Plank length). Inspired by this idea we examine the Wheeler-DeWitt equation for a Schwarzschild black hole with a modified Heisenberg algebra which has a linear term in momentum. We found that... |
1309.7462 | Shabbir Ghulam | Ghulam Shabbir and M. Ramzan | Proper curvature symmetry in non-static cylindrically symmetric
Lorentzian manifolds | 23 pages | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We considered the most general form of non-static cylindrically symmetric
space-times for studying proper curvature symmetry by using the rank of the 6X6
Riemann matrix and direct integration techniques. Studying proper curvature
symmetry in each case of the above space-times it is shown that when the above
space-tim... | [
{
"created": "Sat, 28 Sep 2013 14:05:17 GMT",
"version": "v1"
}
] | 2013-10-01 | [
[
"Shabbir",
"Ghulam",
""
],
[
"Ramzan",
"M.",
""
]
] | We considered the most general form of non-static cylindrically symmetric space-times for studying proper curvature symmetry by using the rank of the 6X6 Riemann matrix and direct integration techniques. Studying proper curvature symmetry in each case of the above space-times it is shown that when the above space-times... |
2202.10722 | Yaoguang Zheng | Wen-Xiang Chen, Yao-Guang Zheng | Analysis on superradiant instability of charged dilaton Black Hole | null | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this post, a new variable y($\mu=y\omega$) is added to extend the results
of the above post. We derive a very compact resonance formulation. When y is a
certain limit, the effective potential of the equation exists at the pole, and
the potential well appears outside the event horizon, when ${e}^{-4\alpha \Phi
/(n-... | [
{
"created": "Tue, 22 Feb 2022 08:25:58 GMT",
"version": "v1"
}
] | 2022-02-23 | [
[
"Chen",
"Wen-Xiang",
""
],
[
"Zheng",
"Yao-Guang",
""
]
] | In this post, a new variable y($\mu=y\omega$) is added to extend the results of the above post. We derive a very compact resonance formulation. When y is a certain limit, the effective potential of the equation exists at the pole, and the potential well appears outside the event horizon, when ${e}^{-4\alpha \Phi /(n-1)... |
2110.08878 | Matilde Marcolli | Pedro Guicardi and Matilde Marcolli | Fractality in Cosmic Topology Models with Spectral Action Gravity | 55 pages, LaTeX, 14 figures | null | 10.1088/1361-6382/ac7d8c | null | gr-qc math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider cosmological models based on the spectral action formulation of
(modified) gravity. We analyze the coupled effects, in this model, of the
presence of nontrivial cosmic topology and of fractality in the large scale
structure of spacetime. We show that the topology constrains the possible
fractal structures... | [
{
"created": "Sun, 17 Oct 2021 17:53:43 GMT",
"version": "v1"
}
] | 2022-08-31 | [
[
"Guicardi",
"Pedro",
""
],
[
"Marcolli",
"Matilde",
""
]
] | We consider cosmological models based on the spectral action formulation of (modified) gravity. We analyze the coupled effects, in this model, of the presence of nontrivial cosmic topology and of fractality in the large scale structure of spacetime. We show that the topology constrains the possible fractal structures, ... |
2406.12510 | Barry Wardell | Barry Wardell, Chris Kavanagh, Sam R. Dolan | Sourced metric perturbations of Kerr spacetime in Lorenz gauge | null | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We derive a formalism for solving the Lorenz gauge equations for metric
perturbations of Kerr spacetime sourced by an arbitrary stress-energy tensor.
The metric perturbation is obtained as a sum of differential operators acting
on a set of six scalars, with two of spin-weight $\pm2$, two of spin-weight
$\pm1$, and tw... | [
{
"created": "Tue, 18 Jun 2024 11:23:35 GMT",
"version": "v1"
}
] | 2024-06-19 | [
[
"Wardell",
"Barry",
""
],
[
"Kavanagh",
"Chris",
""
],
[
"Dolan",
"Sam R.",
""
]
] | We derive a formalism for solving the Lorenz gauge equations for metric perturbations of Kerr spacetime sourced by an arbitrary stress-energy tensor. The metric perturbation is obtained as a sum of differential operators acting on a set of six scalars, with two of spin-weight $\pm2$, two of spin-weight $\pm1$, and two ... |
gr-qc/0502024 | Stoytcho Yazadjiev | Stoytcho S. Yazadjiev | Non-asymptotically flat, non-dS/AdS dyonic black holes in dilaton
gravity | LaTex, 10 pages; v2 changes in introduction, new references added; v3
new section with n-dimensional solutions is added | Class.Quant.Grav. 22 (2005) 3875-3890 | 10.1088/0264-9381/22/19/005 | null | gr-qc | null | We present exact spherically symmetric dyonic black hole solutions in
four-dimensional Einstein-Maxwell-dilaton gravity with Liouville-type
potentials for the dilaton field. These solutions have unusual
asymptotics--they are neither asymptotically flat nor asymptotically (anti-) de
Sitter. The solutions have one or t... | [
{
"created": "Sun, 6 Feb 2005 11:15:41 GMT",
"version": "v1"
},
{
"created": "Wed, 16 Feb 2005 15:44:55 GMT",
"version": "v2"
},
{
"created": "Tue, 23 Aug 2005 07:30:19 GMT",
"version": "v3"
}
] | 2009-11-11 | [
[
"Yazadjiev",
"Stoytcho S.",
""
]
] | We present exact spherically symmetric dyonic black hole solutions in four-dimensional Einstein-Maxwell-dilaton gravity with Liouville-type potentials for the dilaton field. These solutions have unusual asymptotics--they are neither asymptotically flat nor asymptotically (anti-) de Sitter. The solutions have one or two... |
2306.07409 | Peter Hintz | Peter Hintz | Gluing small black holes along timelike geodesics I: formal solution | 165 pages, 14 figures. The main change compared to v1 is that
Hypothesis 9.12 from v1 is now proved (Theorem 9.12), and thus we can
unconditionally glue in any subextremal Kerr black hole. Typos corrected,
bibliography updated | null | null | null | gr-qc math.AP math.DG | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Given a smooth globally hyperbolic $(3+1)$-dimensional spacetime satisfying
the Einstein vacuum equations (possibly with cosmological constant) and an
inextendible timelike geodesic, we construct a family of metrics depending on a
small parameter $\epsilon>0$ with the following properties. (1) They solve the
Einstein... | [
{
"created": "Mon, 12 Jun 2023 20:31:39 GMT",
"version": "v1"
},
{
"created": "Tue, 13 Aug 2024 08:24:31 GMT",
"version": "v2"
}
] | 2024-08-14 | [
[
"Hintz",
"Peter",
""
]
] | Given a smooth globally hyperbolic $(3+1)$-dimensional spacetime satisfying the Einstein vacuum equations (possibly with cosmological constant) and an inextendible timelike geodesic, we construct a family of metrics depending on a small parameter $\epsilon>0$ with the following properties. (1) They solve the Einstein v... |
1311.0443 | Jose Manuel Velhinho | Jeronimo Cortez, Guillermo A. Mena Marugan, Javier Olmedo, Jose M.
Velhinho | Unitary evolution as a uniqueness criterion | 3 pages, contribution for the Proceedings of MG13, Stockholm, 2012 | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We briefly review the use of unitary evolution as a uniqueness criterion in
the selection of quantum representations, in the context of scalar fields in
non-stationary situations.
| [
{
"created": "Sun, 3 Nov 2013 09:30:46 GMT",
"version": "v1"
}
] | 2013-11-05 | [
[
"Cortez",
"Jeronimo",
""
],
[
"Marugan",
"Guillermo A. Mena",
""
],
[
"Olmedo",
"Javier",
""
],
[
"Velhinho",
"Jose M.",
""
]
] | We briefly review the use of unitary evolution as a uniqueness criterion in the selection of quantum representations, in the context of scalar fields in non-stationary situations. |
0902.4133 | Stanislav Babak | Stanislav Babak, Jonathan R. Gair, Edward K. Porter | An algorithm for detection of extreme mass ratio inspirals in LISA data | 14 pages, 4 figures | Class.Quant.Grav.26:135004,2009 | 10.1088/0264-9381/26/13/135004 | null | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The gravitational wave signal from a compact object spiralling toward a
massive black hole (MBH) is thought to be one of the most difficult sources to
detect in the LISA data stream. Due to the large parameter space of possible
signals and many orbital cycles spent in the sensitivity band of LISA, it has
been estimat... | [
{
"created": "Tue, 24 Feb 2009 12:17:00 GMT",
"version": "v1"
}
] | 2009-06-25 | [
[
"Babak",
"Stanislav",
""
],
[
"Gair",
"Jonathan R.",
""
],
[
"Porter",
"Edward K.",
""
]
] | The gravitational wave signal from a compact object spiralling toward a massive black hole (MBH) is thought to be one of the most difficult sources to detect in the LISA data stream. Due to the large parameter space of possible signals and many orbital cycles spent in the sensitivity band of LISA, it has been estimated... |
2201.10902 | Gang Wang | Gang Wang, Bin Li, Peng Xu, Xilong Fan | Charactering instrumental noises and stochastic gravitational wave
signals from combined time-delay interferometry | 15 pages, 6 figures, accepted for publication in PRD | null | 10.1103/PhysRevD.106.044054 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | LISA will detect gravitational waves (GWs) in the milli-Hz frequency band in
space. Time-delay interferometry (TDI) is developed to suppress laser frequency
noise beneath the acceleration noise and optical metrology noise. To identify
stochastic GW signals, it would be required to characterize these noise
components ... | [
{
"created": "Wed, 26 Jan 2022 12:40:53 GMT",
"version": "v1"
},
{
"created": "Sun, 30 Jan 2022 09:09:39 GMT",
"version": "v2"
},
{
"created": "Tue, 26 Jul 2022 14:58:49 GMT",
"version": "v3"
},
{
"created": "Sun, 28 Aug 2022 02:46:43 GMT",
"version": "v4"
}
] | 2022-08-30 | [
[
"Wang",
"Gang",
""
],
[
"Li",
"Bin",
""
],
[
"Xu",
"Peng",
""
],
[
"Fan",
"Xilong",
""
]
] | LISA will detect gravitational waves (GWs) in the milli-Hz frequency band in space. Time-delay interferometry (TDI) is developed to suppress laser frequency noise beneath the acceleration noise and optical metrology noise. To identify stochastic GW signals, it would be required to characterize these noise components en... |
gr-qc/9509050 | Gerard 't Hooft | G. 't Hooft | Quantum information and information loss in General Relativity | Elaborated lecture notes for ISQM-Tokyo'95. 15 pages Plain TeX, 3
Figures | null | null | THU-95/22 | gr-qc | null | When it comes to performing thought experiments with black holes,
Einstein-Bohr like discussions have to be re-opened. For instance one can ask
what happens to the quantum state of a black hole when the wave function of a
single ingoing particle is replaced by an other one that is orthogonal to the
first, while keepi... | [
{
"created": "Tue, 26 Sep 1995 16:37:30 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Hooft",
"G. 't",
""
]
] | When it comes to performing thought experiments with black holes, Einstein-Bohr like discussions have to be re-opened. For instance one can ask what happens to the quantum state of a black hole when the wave function of a single ingoing particle is replaced by an other one that is orthogonal to the first, while keeping... |
1806.01753 | Lavinia Heisenberg | Jose Beltran Jimenez and Lavinia Heisenberg | Non-trivial gravitational waves and structure formation phenomenology
from dark energy | 11 pages, typos corrected and references added | null | 10.1088/1475-7516/2018/09/035 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The detection of the GW170817/GRB170817A event improved the constraints on
the propagation speed of gravitational waves, thus placing possible variations
caused by dark energy under restraint. For models based on scalar fields
belonging to the family of Horndeski Lagrangians, non-minimal derivative
couplings are now ... | [
{
"created": "Tue, 5 Jun 2018 15:42:41 GMT",
"version": "v1"
},
{
"created": "Fri, 8 Jun 2018 13:04:28 GMT",
"version": "v2"
}
] | 2018-10-03 | [
[
"Jimenez",
"Jose Beltran",
""
],
[
"Heisenberg",
"Lavinia",
""
]
] | The detection of the GW170817/GRB170817A event improved the constraints on the propagation speed of gravitational waves, thus placing possible variations caused by dark energy under restraint. For models based on scalar fields belonging to the family of Horndeski Lagrangians, non-minimal derivative couplings are now se... |
2011.03848 | Arkady A. Popov | Sergey G. Rubin, Arkadiy Popov, P. M. Petryakova | Gravity with Higher Derivatives in D-Dimensions | 22 pages, 9 figures, this article belongs to the Special Issue
Selected Papers from the 17th Russian Gravitational Conference -
International Conference on Gravity, Cosmology and Astrophysics (RUSGRAV-17) | Universe 2020, 6, 187 | 10.3390/universe6100187 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The aim of this review is to discuss the ways to obtain results based on
gravity with higher derivatives in D-dimensional world. We considered the
following ways: (1) reduction to scalar tensor gravity, (2) direct solution of
the equations of motion, (3) derivation of approximate equations in the
presence of a small ... | [
{
"created": "Sat, 7 Nov 2020 20:57:19 GMT",
"version": "v1"
}
] | 2023-04-20 | [
[
"Rubin",
"Sergey G.",
""
],
[
"Popov",
"Arkadiy",
""
],
[
"Petryakova",
"P. M.",
""
]
] | The aim of this review is to discuss the ways to obtain results based on gravity with higher derivatives in D-dimensional world. We considered the following ways: (1) reduction to scalar tensor gravity, (2) direct solution of the equations of motion, (3) derivation of approximate equations in the presence of a small pa... |
gr-qc/0004061 | Jljing | Jiliang Jing, Mu-Lin Yan | Entropies of Rotating Charged Black Holes from Conformal Field Theory at
Killing Horizons | 12 pages, no figure, RevTex | Phys.Rev. D62 (2000) 104013 | 10.1103/PhysRevD.62.104013 | null | gr-qc hep-th | null | The covariant phase technique is used to compute the constraint algebra of
the stationary axisymmetric charged black hole. A standard Virasoro subalgebra
with corresponding central charge is constructed at a Killing horizon with
Carlip's boundary conditions. For the Kerr-Newman black hole and the
Kerr-Newman-AdS blac... | [
{
"created": "Wed, 19 Apr 2000 14:23:08 GMT",
"version": "v1"
},
{
"created": "Wed, 24 May 2000 08:19:53 GMT",
"version": "v2"
}
] | 2009-10-31 | [
[
"Jing",
"Jiliang",
""
],
[
"Yan",
"Mu-Lin",
""
]
] | The covariant phase technique is used to compute the constraint algebra of the stationary axisymmetric charged black hole. A standard Virasoro subalgebra with corresponding central charge is constructed at a Killing horizon with Carlip's boundary conditions. For the Kerr-Newman black hole and the Kerr-Newman-AdS black ... |
2302.02734 | Masahiko Taniguchi | Tomohiro Inagaki and Masahiko Taniguchi | Scalar Mode Quadrupole Radiation from Astronomical Sources in $F(R)$
Modified Gravity | 16pages, 2figures | null | 10.1103/PhysRevD.108.024003 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate the scalar mode quadrupole radiation of gravitational waves in
$F(R)$ modified gravity. In $F(R)$ gravity a massive scalar mode appears in the
gravitational waves.
We find explicit expressions for the quadrupole radiation and the energy
current of the scalar mode in general $F(R)$ gravity models.
W... | [
{
"created": "Mon, 6 Feb 2023 12:20:34 GMT",
"version": "v1"
}
] | 2023-07-19 | [
[
"Inagaki",
"Tomohiro",
""
],
[
"Taniguchi",
"Masahiko",
""
]
] | We investigate the scalar mode quadrupole radiation of gravitational waves in $F(R)$ modified gravity. In $F(R)$ gravity a massive scalar mode appears in the gravitational waves. We find explicit expressions for the quadrupole radiation and the energy current of the scalar mode in general $F(R)$ gravity models. We cons... |
1106.5152 | Fernando Oscar Minotti | F. O. Minotti | Scalar-tensor theory with enhanced gravitational effects | 8 pages | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | It is shown that a Brans-Dicke scalar-tensor gravitational theory, which also
includes Bekenstein's kind of interaction between the Maxwell and scalar
fields, has a particular kind of solutions with highly enhanced gravitational
effects as compared with General Relativity, prone to laboratory tests.
| [
{
"created": "Sat, 25 Jun 2011 17:47:24 GMT",
"version": "v1"
},
{
"created": "Wed, 21 Dec 2011 15:11:08 GMT",
"version": "v2"
}
] | 2011-12-22 | [
[
"Minotti",
"F. O.",
""
]
] | It is shown that a Brans-Dicke scalar-tensor gravitational theory, which also includes Bekenstein's kind of interaction between the Maxwell and scalar fields, has a particular kind of solutions with highly enhanced gravitational effects as compared with General Relativity, prone to laboratory tests. |
gr-qc/0012046 | Dmitri Vassiliev | Alastair D. King and Dmitri Vassiliev | Torsion waves in metric-affine field theory | 12 pages, LaTeX2e | Class.Quant.Grav. 18 (2001) 2317-2330 | 10.1088/0264-9381/18/12/307 | null | gr-qc | null | The approach of metric-affine field theory is to define spacetime as a real
oriented 4-manifold equipped with a metric and an affine connection. The 10
independent components of the metric tensor and the 64 connection coefficients
are the unknowns of the theory. We write the Yang-Mills action for the affine
connectio... | [
{
"created": "Wed, 13 Dec 2000 08:30:42 GMT",
"version": "v1"
}
] | 2009-10-31 | [
[
"King",
"Alastair D.",
""
],
[
"Vassiliev",
"Dmitri",
""
]
] | The approach of metric-affine field theory is to define spacetime as a real oriented 4-manifold equipped with a metric and an affine connection. The 10 independent components of the metric tensor and the 64 connection coefficients are the unknowns of the theory. We write the Yang-Mills action for the affine connection ... |
1911.00047 | Peng Zhao | David Hilditch, Juan A. Valiente Kroon and Peng Zhao | Revisiting the characteristic initial value problem for the vacuum
Einstein field equations | 58 pages, 4 figures | null | 10.1007/s10714-020-02747-2 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Using the Newman-Penrose formalism we study the characteristic initial value
problem in vacuum General Relativity. We work in a gauge suggested by Stewart,
and following the strategy taken in the work of Luk, demonstrate local
existence of solutions in a neighbourhood of the set on which data are given.
These data ar... | [
{
"created": "Thu, 31 Oct 2019 18:34:35 GMT",
"version": "v1"
}
] | 2020-10-14 | [
[
"Hilditch",
"David",
""
],
[
"Kroon",
"Juan A. Valiente",
""
],
[
"Zhao",
"Peng",
""
]
] | Using the Newman-Penrose formalism we study the characteristic initial value problem in vacuum General Relativity. We work in a gauge suggested by Stewart, and following the strategy taken in the work of Luk, demonstrate local existence of solutions in a neighbourhood of the set on which data are given. These data are ... |
1410.4671 | Vladimir S. Manko | H. Garc\'ia-Compe\'an and V. S. Manko | Comment on "Global Structure of the Kerr Family of Gravitational Fields" | 4 pages, no figures | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We comment on the role of the Cartesian-type Kerr-Schild coordinates in
developing a faulty maximal extension of the Kerr-Newman solution in the
well-known paper of Carter.
| [
{
"created": "Fri, 17 Oct 2014 09:28:31 GMT",
"version": "v1"
}
] | 2014-10-20 | [
[
"García-Compeán",
"H.",
""
],
[
"Manko",
"V. S.",
""
]
] | We comment on the role of the Cartesian-type Kerr-Schild coordinates in developing a faulty maximal extension of the Kerr-Newman solution in the well-known paper of Carter. |
1307.3640 | Marco Crisostomi | Eugeny Babichev and Marco Crisostomi | Restoring General Relativity in massive bi-gravity theory | 18 pages, 10 figures, typos corrected, version published in PRD | Phys. Rev. D 88, 084002 (2013) | 10.1103/PhysRevD.88.084002 | LPT-ORSAY-13-72 | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study static spherically symmetric solutions of massive bi-gravity theory,
free from the Boulware-Deser ghost. We show the recovery of General Relativity
via the Vainshtein mechanism, in the weak limit of the physical metric. We find
a single polynomial equation determining the behavior of the solution for
distanc... | [
{
"created": "Sat, 13 Jul 2013 10:39:16 GMT",
"version": "v1"
},
{
"created": "Fri, 2 Aug 2013 09:45:49 GMT",
"version": "v2"
},
{
"created": "Thu, 21 Nov 2013 08:58:56 GMT",
"version": "v3"
}
] | 2013-11-22 | [
[
"Babichev",
"Eugeny",
""
],
[
"Crisostomi",
"Marco",
""
]
] | We study static spherically symmetric solutions of massive bi-gravity theory, free from the Boulware-Deser ghost. We show the recovery of General Relativity via the Vainshtein mechanism, in the weak limit of the physical metric. We find a single polynomial equation determining the behavior of the solution for distances... |
2212.10290 | Marco Galoppo | Marco Galoppo, Sergio Luigi Cacciatori, Vittorio Gorini and Mariarosa
Mazza | Equatorial Lensing in the Balasin-Grumiller Galaxy Model | 19 pages and 6 figures | null | null | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | The Balasin-Grumiller model has been the first model employed as an attempt
towards providing a fully general relativistic description of the dynamics of a
disc galaxy. In this paper, we compute the equatorial gravitational lensing
observables of the model. Indeed, our purpose is to investigate the role that
gravitat... | [
{
"created": "Tue, 20 Dec 2022 14:34:35 GMT",
"version": "v1"
},
{
"created": "Sat, 19 Aug 2023 02:31:07 GMT",
"version": "v2"
}
] | 2023-08-22 | [
[
"Galoppo",
"Marco",
""
],
[
"Cacciatori",
"Sergio Luigi",
""
],
[
"Gorini",
"Vittorio",
""
],
[
"Mazza",
"Mariarosa",
""
]
] | The Balasin-Grumiller model has been the first model employed as an attempt towards providing a fully general relativistic description of the dynamics of a disc galaxy. In this paper, we compute the equatorial gravitational lensing observables of the model. Indeed, our purpose is to investigate the role that gravitatio... |
1201.3171 | Muhammad Sharif | M. Sharif and Wajiha Javed | Black Hole Evaporation in a Noncommutative Charged Vaidya Model | 25 pages, 36 figures, accepted for publication in J. Exp. Theor. Phys | J. Exp. Theor. Phys. 114(2012)933-945 | 10.1134/S1063776112050123 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The aim of this paper is to study the black hole evaporation and Hawking
radiation for a noncommutative charged Vaidya black hole. For this purpose, we
determine spherically symmetric charged Vaidya model and then formulate a
noncommutative Reissner-Nordstr$\ddot{o}$m-like solution of this model which
leads to an exa... | [
{
"created": "Mon, 16 Jan 2012 07:56:23 GMT",
"version": "v1"
}
] | 2015-06-03 | [
[
"Sharif",
"M.",
""
],
[
"Javed",
"Wajiha",
""
]
] | The aim of this paper is to study the black hole evaporation and Hawking radiation for a noncommutative charged Vaidya black hole. For this purpose, we determine spherically symmetric charged Vaidya model and then formulate a noncommutative Reissner-Nordstr$\ddot{o}$m-like solution of this model which leads to an exact... |
1211.6903 | Keiju Murata Dr | Keiju Murata | Instability of higher dimensional extreme black holes | 19 pages | null | 10.1088/0264-9381/30/7/075002 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study linearized gravitational perturbations of extreme black hole
solutions of the vacuum Einstein equation in any number of dimensions. We find
that the equations governing such perturbations can be decoupled at the future
event horizon. Using these equations, we show that transverse derivatives of
certain gauge... | [
{
"created": "Thu, 29 Nov 2012 13:02:36 GMT",
"version": "v1"
}
] | 2015-06-12 | [
[
"Murata",
"Keiju",
""
]
] | We study linearized gravitational perturbations of extreme black hole solutions of the vacuum Einstein equation in any number of dimensions. We find that the equations governing such perturbations can be decoupled at the future event horizon. Using these equations, we show that transverse derivatives of certain gauge i... |
1501.07537 | Joel Franklin | J. Franklin, Y. Guo, A. McNutt, A. Morgan | The Schrodinger-Newton System with Self-Field Coupling | to appear, Class. Quant. Grav | null | 10.1088/0264-9381/32/6/065010 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the Schrodinger-Newton system of equations with the addition of
gravitational field energy sourcing - such additional nonlinearity is to be
expected from a theory of gravity (like general relativity), and its appearance
in this simplified scalar setting (one of Einstein's precursors to general
relativity) le... | [
{
"created": "Thu, 29 Jan 2015 18:28:58 GMT",
"version": "v1"
}
] | 2015-06-23 | [
[
"Franklin",
"J.",
""
],
[
"Guo",
"Y.",
""
],
[
"McNutt",
"A.",
""
],
[
"Morgan",
"A.",
""
]
] | We study the Schrodinger-Newton system of equations with the addition of gravitational field energy sourcing - such additional nonlinearity is to be expected from a theory of gravity (like general relativity), and its appearance in this simplified scalar setting (one of Einstein's precursors to general relativity) lead... |
1906.11859 | T. Damour | Thibault Damour and Vasilisa Nikiforova | Spherically symmetric solutions in torsion bigravity | 28 pages, 3 figures | Phys. Rev. D 100, 024065 (2019) | 10.1103/PhysRevD.100.024065 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study spherically symmetric solutions in a four-parameter
Einstein-Cartan-type class of theories. These theories include torsion, as well
as the metric, as dynamical fields, and contain only two physical excitations
(around flat spacetime): a massless spin-2 excitation and a massive spin-2 one
(of mass $ m_2 \equi... | [
{
"created": "Thu, 27 Jun 2019 18:04:42 GMT",
"version": "v1"
}
] | 2019-08-07 | [
[
"Damour",
"Thibault",
""
],
[
"Nikiforova",
"Vasilisa",
""
]
] | We study spherically symmetric solutions in a four-parameter Einstein-Cartan-type class of theories. These theories include torsion, as well as the metric, as dynamical fields, and contain only two physical excitations (around flat spacetime): a massless spin-2 excitation and a massive spin-2 one (of mass $ m_2 \equiv ... |
0811.0558 | Alexey Toporensky | S. A. Pavluchenko and A. V. Toporensky | A note on differences between (4+1)- and (5+1)-dimensional anisotropic
cosmology in the presence of the Gauss-Bonnet term | 9 pages with 3 eps figures; typos corrected, references added; final
version to appear in MPLA | Mod.Phys.Lett.A24:513-521,2009 | 10.1142/S0217732309030187 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate a flat anisotropic (5+1)-dimensional cosmological model in the
presence of the Gauss-Bonnet (GB) contribution in addition to usual Einstein
term in the action. We compared it with (4+1)-dimensional case and found a
substantial difference in corresponding cosmological dynamics. This difference
is manife... | [
{
"created": "Tue, 4 Nov 2008 17:25:10 GMT",
"version": "v1"
},
{
"created": "Wed, 4 Mar 2009 13:39:24 GMT",
"version": "v2"
}
] | 2009-04-17 | [
[
"Pavluchenko",
"S. A.",
""
],
[
"Toporensky",
"A. V.",
""
]
] | We investigate a flat anisotropic (5+1)-dimensional cosmological model in the presence of the Gauss-Bonnet (GB) contribution in addition to usual Einstein term in the action. We compared it with (4+1)-dimensional case and found a substantial difference in corresponding cosmological dynamics. This difference is manifest... |
2107.12488 | Valerio Faraoni | Valerio Faraoni, Sonia Jose, and Steve Dussault (Bishop's University) | Multi-fluid cosmology in Einstein gravity: analytical solutions | Bibliography expanded and typographical errors corrected. Matches the
version to appear in Gen. Relativ. Gravit | null | 10.1007/s10714-021-02879-z | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We review analytical solutions of the Einstein equations which are expressed
in terms of elementary functions and describe
Friedmann-Lema\^itre-Robertson-Walker universes sourced by multiple (real or
effective) perfect fluids with constant equations of state. Effective fluids
include spatial curvature, the cosmologic... | [
{
"created": "Mon, 26 Jul 2021 21:28:50 GMT",
"version": "v1"
},
{
"created": "Fri, 5 Nov 2021 18:49:32 GMT",
"version": "v2"
}
] | 2021-12-15 | [
[
"Faraoni",
"Valerio",
"",
"Bishop's University"
],
[
"Jose",
"Sonia",
"",
"Bishop's University"
],
[
"Dussault",
"Steve",
"",
"Bishop's University"
]
] | We review analytical solutions of the Einstein equations which are expressed in terms of elementary functions and describe Friedmann-Lema\^itre-Robertson-Walker universes sourced by multiple (real or effective) perfect fluids with constant equations of state. Effective fluids include spatial curvature, the cosmological... |
2210.02634 | Amanda Guerrieri | Amanda Guerrieri and Mario Novello | Photon propagation in a material medium on a curved spacetime | 21 pages, 1 figure | null | 10.1088/1361-6382/aca23a | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider a nonlinear dielectric medium surrounding a static, charged and
spherically symmetric compact body which gravitational field is driven by
General Relativity (GR). Considering the propagating waves on the dielectric
medium, we describe the trajectory of light as geodesics on an effective
geometry given by ... | [
{
"created": "Thu, 6 Oct 2022 01:59:11 GMT",
"version": "v1"
}
] | 2022-12-07 | [
[
"Guerrieri",
"Amanda",
""
],
[
"Novello",
"Mario",
""
]
] | We consider a nonlinear dielectric medium surrounding a static, charged and spherically symmetric compact body which gravitational field is driven by General Relativity (GR). Considering the propagating waves on the dielectric medium, we describe the trajectory of light as geodesics on an effective geometry given by Ha... |
2103.04468 | Carl Diether | Carl F. Diether, III and Joy Christian | Comment on `Relativistic wave-particle duality for spinors' | 4 page, no figures; Note added to proof | null | null | null | gr-qc quant-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In a recent paper [1], it has been proposed that relativistic wave-particle
duality can be embodied in a relation that shows that the four-velocity of a
particle is proportional to the Dirac four-current. In this note we bring out
some problems with that idea. In particular, we point out that, in line with
existing l... | [
{
"created": "Sun, 7 Mar 2021 22:09:55 GMT",
"version": "v1"
},
{
"created": "Thu, 19 Aug 2021 14:20:37 GMT",
"version": "v2"
}
] | 2022-02-13 | [
[
"Diether",
"Carl F.",
""
],
[
"III",
"",
""
],
[
"Christian",
"Joy",
""
]
] | In a recent paper [1], it has been proposed that relativistic wave-particle duality can be embodied in a relation that shows that the four-velocity of a particle is proportional to the Dirac four-current. In this note we bring out some problems with that idea. In particular, we point out that, in line with existing lit... |
gr-qc/0612025 | Johan Hansson | Johan Hansson | Newtonian Quantum Gravity | null | Phys. Essays 23:53,2010 | 10.4006/1.3291188 | null | gr-qc astro-ph quant-ph | null | A Newtonian approach to quantum gravity is studied. At least for weak
gravitational fields it should be a valid approximation. Such an approach could
be used to point out problems and prospects inherent in a more exact theory of
quantum gravity, yet to be discovered. Newtonian quantum gravity, e.g., shows
promise for... | [
{
"created": "Mon, 4 Dec 2006 11:01:44 GMT",
"version": "v1"
}
] | 2011-04-07 | [
[
"Hansson",
"Johan",
""
]
] | A Newtonian approach to quantum gravity is studied. At least for weak gravitational fields it should be a valid approximation. Such an approach could be used to point out problems and prospects inherent in a more exact theory of quantum gravity, yet to be discovered. Newtonian quantum gravity, e.g., shows promise for p... |
1512.08447 | Paul R. Anderson | Alessandro Fabbri, Roberto Balbinot, and Paul R. Anderson | Scattering coefficients and gray-body factor for 1D BEC acoustic black
holes: exact results | 13 pages, 1 figure, Final version, to appear in Phys. Rev. D | Phys. Rev. D 93, 064046 (2016) | 10.1103/PhysRevD.93.064046 | null | gr-qc cond-mat.quant-gas hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A complete set of exact analytic solutions to the mode equation is found in
the region exterior to the acoustic horizon for a class of 1D Bose-Einstein
condensate (BEC) acoustic black holes. From these, analytic expressions for the
scattering coefficients and gray-body factor are obtained. The results are used
to ver... | [
{
"created": "Mon, 28 Dec 2015 16:28:36 GMT",
"version": "v1"
},
{
"created": "Wed, 17 Feb 2016 20:32:00 GMT",
"version": "v2"
}
] | 2016-03-23 | [
[
"Fabbri",
"Alessandro",
""
],
[
"Balbinot",
"Roberto",
""
],
[
"Anderson",
"Paul R.",
""
]
] | A complete set of exact analytic solutions to the mode equation is found in the region exterior to the acoustic horizon for a class of 1D Bose-Einstein condensate (BEC) acoustic black holes. From these, analytic expressions for the scattering coefficients and gray-body factor are obtained. The results are used to verif... |
2403.10439 | Praveen Kumar | Praveen Kumar, Thomas Dent (IGFAE, Universidade de Santiago de
Compostela) | Optimized Search for a Binary Black Hole Merger Population in LIGO-Virgo
O3 Data | 22 pages, 6 figures, 2 tables | null | null | null | gr-qc astro-ph.HE | http://creativecommons.org/licenses/by/4.0/ | Maximizing the number of detections in matched filter searches for compact
binary coalescence (CBC) gravitational wave (GW) signals requires a model of
the source population distribution. In previous searches using the PyCBC
framework, sensitivity to the population of binary black hole (BBH) mergers was
improved by r... | [
{
"created": "Fri, 15 Mar 2024 16:24:53 GMT",
"version": "v1"
},
{
"created": "Wed, 24 Apr 2024 15:21:32 GMT",
"version": "v2"
}
] | 2024-04-25 | [
[
"Kumar",
"Praveen",
"",
"IGFAE, Universidade de Santiago de\n Compostela"
],
[
"Dent",
"Thomas",
"",
"IGFAE, Universidade de Santiago de\n Compostela"
]
] | Maximizing the number of detections in matched filter searches for compact binary coalescence (CBC) gravitational wave (GW) signals requires a model of the source population distribution. In previous searches using the PyCBC framework, sensitivity to the population of binary black hole (BBH) mergers was improved by res... |
1112.6391 | Parampreet Singh | Parampreet Singh | Curvature invariants, geodesics and the strength of singularities in
Bianchi-I loop quantum cosmology | Discussion on a possible existence of a non-singularity theorem
added. To appear in PRD | Phys. Rev. D 85, 104011 (2012) | 10.1103/PhysRevD.85.104011 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate the effects of the underlying quantum geometry in loop quantum
cosmology on spacetime curvature invariants and the extendibility of geodesics
in the Bianchi-I model for matter with a vanishing anisotropic stress. Using
the effective Hamiltonian approach, we find that even though quantum geometric
effec... | [
{
"created": "Thu, 29 Dec 2011 19:32:42 GMT",
"version": "v1"
},
{
"created": "Wed, 11 Apr 2012 14:26:56 GMT",
"version": "v2"
}
] | 2012-07-05 | [
[
"Singh",
"Parampreet",
""
]
] | We investigate the effects of the underlying quantum geometry in loop quantum cosmology on spacetime curvature invariants and the extendibility of geodesics in the Bianchi-I model for matter with a vanishing anisotropic stress. Using the effective Hamiltonian approach, we find that even though quantum geometric effects... |
1706.07413 | Steven L. Liebling | Steven L. Liebling, Gaurav Khanna | Scalar collapse in AdS with an OpenCL open source code | 6 pages, 3 figures; Updated fixing an incorrect sentence about the
initial data and matching to published version | Classical and Quantum Gravity 34, 205012 (2017) | 10.1088/1361-6382/aa8b43 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the spherically symmetric collapse of a scalar field in anti-de
Sitter spacetime using a newly constructed, open-source code which parallelizes
over heterogeneous architectures using the open standard OpenCL. An open
question for this scenario concerns how to tell, a priori, whether some form of
initial data... | [
{
"created": "Thu, 22 Jun 2017 17:39:15 GMT",
"version": "v1"
},
{
"created": "Sat, 30 Sep 2017 17:46:44 GMT",
"version": "v2"
}
] | 2017-10-03 | [
[
"Liebling",
"Steven L.",
""
],
[
"Khanna",
"Gaurav",
""
]
] | We study the spherically symmetric collapse of a scalar field in anti-de Sitter spacetime using a newly constructed, open-source code which parallelizes over heterogeneous architectures using the open standard OpenCL. An open question for this scenario concerns how to tell, a priori, whether some form of initial data w... |
1603.09443 | Christine Gruber | Christine Gruber, Orlando Luongo and Hernando Quevedo | Geometric approaches to the thermodynamics of black holes | Reviwew of BH5-session prepared for the MG14 Proceedings | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this summary, we present the main topics of the talks presented in the
parallel session "Black holes - 5" of the 14th Marcel Grossmann Meeting held in
Rome, Italy in July 2015. We first present a short review of the main
approaches used to understand thermodynamics by using differential geometry.
Then, we present ... | [
{
"created": "Thu, 31 Mar 2016 02:44:41 GMT",
"version": "v1"
},
{
"created": "Mon, 30 May 2016 23:02:20 GMT",
"version": "v2"
}
] | 2016-06-01 | [
[
"Gruber",
"Christine",
""
],
[
"Luongo",
"Orlando",
""
],
[
"Quevedo",
"Hernando",
""
]
] | In this summary, we present the main topics of the talks presented in the parallel session "Black holes - 5" of the 14th Marcel Grossmann Meeting held in Rome, Italy in July 2015. We first present a short review of the main approaches used to understand thermodynamics by using differential geometry. Then, we present a ... |
0912.4944 | Cosimo Bambi | Cosimo Bambi | Numerical simulations of the accretion process in Kerr space-times with
arbitrary value of the Kerr parameter | 4 pages, 1 figure. To appear in the proceedings of "JGRG19" (Tokyo,
Japan, 30 November - 4 December 2009) | null | null | IPMU09-0164 | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | According to the Cosmic Censorship Conjecture, all the singularities produced
by the collapsing matter must be hidden behind an event horizon. In 4D general
relativity, this implies that the final product of the collapse is a
Kerr-Newman black hole. Here I consider the possibility that the Cosmic
Censorship Conjectur... | [
{
"created": "Fri, 25 Dec 2009 07:03:08 GMT",
"version": "v1"
},
{
"created": "Mon, 4 Jan 2010 07:37:15 GMT",
"version": "v2"
}
] | 2010-01-04 | [
[
"Bambi",
"Cosimo",
""
]
] | According to the Cosmic Censorship Conjecture, all the singularities produced by the collapsing matter must be hidden behind an event horizon. In 4D general relativity, this implies that the final product of the collapse is a Kerr-Newman black hole. Here I consider the possibility that the Cosmic Censorship Conjecture ... |
1311.6384 | Anastasia Golubtsova | J.-M. Alimi, A. A. Golubtsova and V. Reverdy | Elliptic solutions of generalized Brans-Dicke gravity with a
non-universal coupling | 24 pages, 3 figures; v2: typos fixed, few remarks and references
added; version to appear in EPJC | null | 10.1140/epjc/s10052-014-3125-7 | IGC-13/11 | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study a model of the generalized Brans-Dicke gravity presented in both the
Jordan and in the Einstein frames, which are conformally related. We show that
the scalar field equations in the Einstein frame are reduced to the geodesics
equations on the target space of the nonlinear sigma-model. The analytical
solution... | [
{
"created": "Mon, 25 Nov 2013 18:02:11 GMT",
"version": "v1"
},
{
"created": "Tue, 7 Oct 2014 13:35:52 GMT",
"version": "v2"
}
] | 2015-06-18 | [
[
"Alimi",
"J. -M.",
""
],
[
"Golubtsova",
"A. A.",
""
],
[
"Reverdy",
"V.",
""
]
] | We study a model of the generalized Brans-Dicke gravity presented in both the Jordan and in the Einstein frames, which are conformally related. We show that the scalar field equations in the Einstein frame are reduced to the geodesics equations on the target space of the nonlinear sigma-model. The analytical solutions ... |
0912.0090 | Sabine Hossenfelder | S. Hossenfelder | The Box-Problem in Deformed Special Relativity | 20 pages, 3 figures | null | null | null | gr-qc hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We examine the transformation of particle trajectories in models with
deformations of Special Relativity that have an energy-dependent and
observer-independent speed of light. These transformations necessarily imply
that the notion of what constitutes the same space-time event becomes dependent
on the observer's iner... | [
{
"created": "Tue, 1 Dec 2009 07:29:43 GMT",
"version": "v1"
}
] | 2009-12-03 | [
[
"Hossenfelder",
"S.",
""
]
] | We examine the transformation of particle trajectories in models with deformations of Special Relativity that have an energy-dependent and observer-independent speed of light. These transformations necessarily imply that the notion of what constitutes the same space-time event becomes dependent on the observer's inerti... |
gr-qc/0602008 | Sophie Pireaux Dr | S. Pireaux (Observatoire de la Cote d'Azur, Department ARTEMIS,
Grasse, France), J-P. Barriot (Observatoire Midi-Pyrenees, UMR 5562-DTP,
Toulouse, France), P. Rosenblatt (Observatoire Royal de Belgique, Bruxelles,
Belgique) | (SC)RMI: A (S)emi-(C)lassical (R)elativistic (M)otion (I)integrator, to
model the orbits of space probes around the Earth and other planets | 13 pages, 5 eps figures, 1 table, accepted in Acta Astronautica,
presented at the International Astronautical Congress, Vancouver 2004,
reference IAC-04-A.7.08 | null | 10.1016/j.actaastro.2006.04.006 | null | gr-qc | null | Today, the motion of spacecrafts is still described according to the
classical Newtonian equations plus the so-called "relativistic corrections",
computed with the required precision using the Post-(Post-)Newtonian formalism.
The current approach, with the increase of tracking precision (Ka-Band Doppler,
interplaneta... | [
{
"created": "Thu, 2 Feb 2006 11:32:39 GMT",
"version": "v1"
}
] | 2009-11-11 | [
[
"Pireaux",
"S.",
"",
"Observatoire de la Cote d'Azur, Department ARTEMIS,\n Grasse, France"
],
[
"Barriot",
"J-P.",
"",
"Observatoire Midi-Pyrenees, UMR 5562-DTP,\n Toulouse, France"
],
[
"Rosenblatt",
"P.",
"",
"Observatoire Royal de Belgique, Bruxelles,\... | Today, the motion of spacecrafts is still described according to the classical Newtonian equations plus the so-called "relativistic corrections", computed with the required precision using the Post-(Post-)Newtonian formalism. The current approach, with the increase of tracking precision (Ka-Band Doppler, interplanetary... |
0812.2491 | M. B. Paranjape | Luca Fabbri and M. B. Paranjape | Monochromatic plane-fronted waves in conformal gravity are pure gauge | 5 pages, no figures, version published, substantial changes to the
presentation, conclusions unaltered, title changed | Phys.Rev.D83:104046,2011 | 10.1103/PhysRevD.83.104046 | UdeM-GPP-TH-08-173 | gr-qc hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider plane-fronted, monochromatic gravitational waves on a Minkowski
background, in a conformally invariant theory of general relativity. By this we
mean waves of the form: $g_{\mu\nu}=\eta_{\mu\nu}+\epsilon_{\mu\nu}F(k\cdotx)$,
where $\epsilon_{\mu\nu}$ is a constant polarization tensor, and $k_\mu$ is a
ligh... | [
{
"created": "Fri, 12 Dec 2008 21:52:22 GMT",
"version": "v1"
},
{
"created": "Thu, 26 May 2011 20:52:42 GMT",
"version": "v2"
}
] | 2011-06-07 | [
[
"Fabbri",
"Luca",
""
],
[
"Paranjape",
"M. B.",
""
]
] | We consider plane-fronted, monochromatic gravitational waves on a Minkowski background, in a conformally invariant theory of general relativity. By this we mean waves of the form: $g_{\mu\nu}=\eta_{\mu\nu}+\epsilon_{\mu\nu}F(k\cdotx)$, where $\epsilon_{\mu\nu}$ is a constant polarization tensor, and $k_\mu$ is a lightl... |
gr-qc/0407045 | Chang Jun Gao | Chang Jun Gao and Shuang Nan Zhang | Reissner-Nordstr\"om Metric in the Friedman-Robertson-Walker Universe | 8 pages, no figures | Phys.Lett. B595 (2004) 28 | 10.1016/j.physletb.2004.05.076 | null | gr-qc astro-ph | null | The metric for a Reissner-Nordstr$\ddot{o}$m black hole in the background of
the Friedman-Robertson-Walker universe is obtained. Then we verified it and
discussed the influence of the evolution of the universe on the size of the
black hole. To study the problem of the orbits of a planet in the expanding
universe, we ... | [
{
"created": "Tue, 13 Jul 2004 08:00:07 GMT",
"version": "v1"
},
{
"created": "Wed, 17 Nov 2004 07:58:14 GMT",
"version": "v2"
}
] | 2009-11-10 | [
[
"Gao",
"Chang Jun",
""
],
[
"Zhang",
"Shuang Nan",
""
]
] | The metric for a Reissner-Nordstr$\ddot{o}$m black hole in the background of the Friedman-Robertson-Walker universe is obtained. Then we verified it and discussed the influence of the evolution of the universe on the size of the black hole. To study the problem of the orbits of a planet in the expanding universe, we re... |
1512.04113 | Victor Shchigolev Konstantinovich | V. K. Shchigolev | Testing Fractional Action Cosmology | 9 pages, 7 figures; minor typos corrected | Eur. Phys. J. Plus (2016) 131: 256 | 10.1140/epjp/i2016-16256-6 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The present work deals with a combined test of the so-called Fractional
Action Cosmology (FAC) on the example of a specific model obtained by the
author earlier. In this model, the effective cosmological term is proportional
to the Hubble parameter squared through the so-called kinematic induction. The
reason of stud... | [
{
"created": "Sun, 13 Dec 2015 20:03:44 GMT",
"version": "v1"
},
{
"created": "Fri, 18 Dec 2015 19:19:15 GMT",
"version": "v2"
}
] | 2016-08-04 | [
[
"Shchigolev",
"V. K.",
""
]
] | The present work deals with a combined test of the so-called Fractional Action Cosmology (FAC) on the example of a specific model obtained by the author earlier. In this model, the effective cosmological term is proportional to the Hubble parameter squared through the so-called kinematic induction. The reason of studyi... |
2404.16146 | Rajesh Nayak K | Santanu Tripathy and K Rajesh Nayak | Static Blackhole with Cosmological Influence: Whittaker Solutions | null | null | null | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | In this article, we investigate the impact of cosmological parameters on
black holes using an exact solution to Einstein's equations that satisfies the
Whittaker equation of state. We examine a spherically symmetric black hole in
the background of a static Einstein Universe with a perfect fluid source with
the cosmol... | [
{
"created": "Wed, 24 Apr 2024 19:06:00 GMT",
"version": "v1"
}
] | 2024-04-26 | [
[
"Tripathy",
"Santanu",
""
],
[
"Nayak",
"K Rajesh",
""
]
] | In this article, we investigate the impact of cosmological parameters on black holes using an exact solution to Einstein's equations that satisfies the Whittaker equation of state. We examine a spherically symmetric black hole in the background of a static Einstein Universe with a perfect fluid source with the cosmolog... |
gr-qc/9711087 | Niall O. Murchadha | Edward Malec (Jagiellonian University, Institute of Physics), Niall
O'Murchadha (Physics Department, University College, Cork) | Backscattering: an overlooked effect of General Relativity? | Revtex file, 4 pages | null | null | null | gr-qc | null | The total flux of outgoing radiation in a strong gravitational field
decreases due to backscattering if the sources are close to an apparent
horizon. It can cause detectable changes in the shape of signals.
Backscattering could well be of relevance to astrophysics and would constitute
a new test of the validity of ge... | [
{
"created": "Fri, 28 Nov 1997 12:07:12 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Malec",
"Edward",
"",
"Jagiellonian University, Institute of Physics"
],
[
"O'Murchadha",
"Niall",
"",
"Physics Department, University College, Cork"
]
] | The total flux of outgoing radiation in a strong gravitational field decreases due to backscattering if the sources are close to an apparent horizon. It can cause detectable changes in the shape of signals. Backscattering could well be of relevance to astrophysics and would constitute a new test of the validity of gene... |
1711.08743 | Soumen Roy | Soumen Roy, Anand S. Sengupta, Parameswaran Ajith | Effectual gravitational-wave template banks for coalescing compact
binaries using a hybrid placement algorithm | The new title: Effectual template banks for upcoming compact binary
searches in Advanced-LIGO Virgo data | Phys. Rev. D 99, 024048 (2019) | 10.1103/PhysRevD.99.024048 | LIGO Document P1700396 | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Recent discoveries of gravitational wave (GW) signals from astrophysical
compact binary systems of neutron stars and black holes have firmly established
them as prime sources for advanced GW detectors. Theoretical templates of
expected signals from such systems have been used to filter the detector data
using the \em... | [
{
"created": "Thu, 23 Nov 2017 15:49:20 GMT",
"version": "v1"
},
{
"created": "Tue, 18 Dec 2018 13:06:40 GMT",
"version": "v2"
}
] | 2019-02-04 | [
[
"Roy",
"Soumen",
""
],
[
"Sengupta",
"Anand S.",
""
],
[
"Ajith",
"Parameswaran",
""
]
] | Recent discoveries of gravitational wave (GW) signals from astrophysical compact binary systems of neutron stars and black holes have firmly established them as prime sources for advanced GW detectors. Theoretical templates of expected signals from such systems have been used to filter the detector data using the \emph... |
2106.09630 | Adrian Ka-Wai Chung | Ka-Wai Chung, Tjonnie Guang Feng Li | Lensing of Gravitational Waves as a Novel Probe of Graviton Mass | 6 pages, 4 figures; match the version published by Phys. Rev. D | null | 10.1103/PhysRevD.104.124060 | KCL-PH-TH 2021/41, LIGO Document number of P2100192-v2 | gr-qc astro-ph.HE | http://creativecommons.org/licenses/by/4.0/ | The diffraction patterns of lensed gravitational waves encode information
about their propagation speeds. If gravitons have mass, the dispersion relation
and speed of gravitational waves will be affected in a frequency-dependent
manner, which would leave traces in the diffraction pattern if the waves are
lensed. In t... | [
{
"created": "Thu, 17 Jun 2021 16:15:08 GMT",
"version": "v1"
},
{
"created": "Mon, 15 Nov 2021 12:23:14 GMT",
"version": "v2"
},
{
"created": "Wed, 22 Dec 2021 09:42:54 GMT",
"version": "v3"
}
] | 2021-12-23 | [
[
"Chung",
"Ka-Wai",
""
],
[
"Li",
"Tjonnie Guang Feng",
""
]
] | The diffraction patterns of lensed gravitational waves encode information about their propagation speeds. If gravitons have mass, the dispersion relation and speed of gravitational waves will be affected in a frequency-dependent manner, which would leave traces in the diffraction pattern if the waves are lensed. In thi... |
gr-qc/9910034 | Sumati Surya | H.F.Dowker, R.S.Garcia and S.Surya | Morse index and causal continuity. A criterion for topology change in
quantum gravity | Latex, 20 pages, 3 figures | Class.Quant.Grav. 17 (2000) 697-712 | 10.1088/0264-9381/17/3/308 | null | gr-qc hep-th | null | Studies in 1+1 dimensions suggest that causally discontinuous topology
changing spacetimes are suppressed in quantum gravity. Borde and Sorkin have
conjectured that causal discontinuities are associated precisely with index 1
or n-1 Morse points in topology changing spacetimes built from Morse functions.
We establish... | [
{
"created": "Mon, 11 Oct 1999 05:42:35 GMT",
"version": "v1"
}
] | 2009-10-31 | [
[
"Dowker",
"H. F.",
""
],
[
"Garcia",
"R. S.",
""
],
[
"Surya",
"S.",
""
]
] | Studies in 1+1 dimensions suggest that causally discontinuous topology changing spacetimes are suppressed in quantum gravity. Borde and Sorkin have conjectured that causal discontinuities are associated precisely with index 1 or n-1 Morse points in topology changing spacetimes built from Morse functions. We establish a... |
1102.5192 | Clifford M. Will | Clifford M. Will | On the unreasonable effectiveness of the post-Newtonian approximation in
gravitational physics | 9 pages, 2 figures, submitted to Proceedings of the National Academy
of Sciences (US) | Proc. Nat. Acad. Sci. (US) 108, 5938 (2011) | 10.1073/pnas.1103127108 | null | gr-qc astro-ph.HE hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The post-Newtonian approximation is a method for solving Einstein's field
equations for physical systems in which motions are slow compared to the speed
of light and where gravitational fields are weak. Yet it has proven to be
remarkably effective in describing certain strong-field, fast-motion systems,
including bin... | [
{
"created": "Fri, 25 Feb 2011 08:51:15 GMT",
"version": "v1"
}
] | 2015-05-27 | [
[
"Will",
"Clifford M.",
""
]
] | The post-Newtonian approximation is a method for solving Einstein's field equations for physical systems in which motions are slow compared to the speed of light and where gravitational fields are weak. Yet it has proven to be remarkably effective in describing certain strong-field, fast-motion systems, including binar... |
2101.00266 | Valerio Faraoni | Valerio Faraoni (Bishop's U.), Andrea Giusti (ETH Zurich), and Bardia
H. Fahim (Bishop's U.) | Spherical inhomogeneous solutions of Einstein and scalar-tensor gravity:
a map of the land | 140 pages, one figure. Explanation text and bibliography expanded,
typographical errors corrected. Matches version to appear in Physics Reports | null | 10.1016/j.physrep.2021.04.003 | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We review spherical and inhomogeneous analytic solutions of the field
equations of Einstein and of scalar-tensor gravity, including Brans-Dicke
theory, non-minimally (possibly conformally) coupled scalar fields, Horndeski,
and beyond Horndeski/DHOST gravity. The zoo includes both static and dynamic
solutions, asympto... | [
{
"created": "Fri, 1 Jan 2021 16:35:39 GMT",
"version": "v1"
},
{
"created": "Tue, 27 Apr 2021 12:43:26 GMT",
"version": "v2"
}
] | 2021-07-28 | [
[
"Faraoni",
"Valerio",
"",
"Bishop's U."
],
[
"Giusti",
"Andrea",
"",
"ETH Zurich"
],
[
"Fahim",
"Bardia H.",
"",
"Bishop's U."
]
] | We review spherical and inhomogeneous analytic solutions of the field equations of Einstein and of scalar-tensor gravity, including Brans-Dicke theory, non-minimally (possibly conformally) coupled scalar fields, Horndeski, and beyond Horndeski/DHOST gravity. The zoo includes both static and dynamic solutions, asymptoti... |
1911.12521 | Mahamat Saleh | Ragil Tsafack Ndongmo, Saleh Mahamat, Thomas Bouetou Bouetou and
Timoleon Crepin Kofane | Thermodynamic of a rotating and Non-linear magnetic-charged black hole
in the quintessence field | 8 pages, 12 figures | null | null | null | gr-qc | http://creativecommons.org/publicdomain/zero/1.0/ | We purpose an approach for the thermodynamic analysis of rotating and
non-linear magnetic-charged black hole with quintessence. Accordingly, we
compute various thermodynamics quantities of the black hole, such as mass,
temperature, potential provided from the magnetic charge, and the heat
capacity. Moreover, we study... | [
{
"created": "Thu, 28 Nov 2019 04:28:39 GMT",
"version": "v1"
}
] | 2019-12-02 | [
[
"Ndongmo",
"Ragil Tsafack",
""
],
[
"Mahamat",
"Saleh",
""
],
[
"Bouetou",
"Thomas Bouetou",
""
],
[
"Kofane",
"Timoleon Crepin",
""
]
] | We purpose an approach for the thermodynamic analysis of rotating and non-linear magnetic-charged black hole with quintessence. Accordingly, we compute various thermodynamics quantities of the black hole, such as mass, temperature, potential provided from the magnetic charge, and the heat capacity. Moreover, we study p... |
1111.4661 | Julien Ribassin | J. Ribassin, E. Huguet and K. Ganga | Simple fluid models for super-inflation in effective LQC and effects on
the CMB B-modes | 8 pages, 15 figures | null | null | null | gr-qc astro-ph.CO hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Loop quantum cosmology allows to replace the original singularity by a
quantum bounce followed by a phase of fast expansion called super-inflation. In
this paper, we use a simple analytic description of super-inflation using the
equation of state of a fluid. We then derive the power spectrum of tensor
perturbations p... | [
{
"created": "Sun, 20 Nov 2011 18:36:34 GMT",
"version": "v1"
}
] | 2015-03-19 | [
[
"Ribassin",
"J.",
""
],
[
"Huguet",
"E.",
""
],
[
"Ganga",
"K.",
""
]
] | Loop quantum cosmology allows to replace the original singularity by a quantum bounce followed by a phase of fast expansion called super-inflation. In this paper, we use a simple analytic description of super-inflation using the equation of state of a fluid. We then derive the power spectrum of tensor perturbations pro... |
1505.04568 | Peng Wang | Peng Wang, Haitang Yang and Shuxuan Ying | Black Hole Radiation with Modified Dispersion Relation in Tunneling
Paradigm: Free-fall Frame | 28 pages. arXiv admin note: substantial text overlap with
arXiv:1505.03045 | null | 10.1140/epjc/s10052-015-3858-y | CTP-SCU/2015009 | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Due to the exponential high gravitational red shift near the event horizon of
a black hole, it might appear that the Hawking radiation would be highly
sensitive to some unknown high energy physics. To study effects of any unknown
physics at the Planck scale on the Hawking radiation, the dispersive field
theory models... | [
{
"created": "Mon, 18 May 2015 09:30:59 GMT",
"version": "v1"
}
] | 2016-02-17 | [
[
"Wang",
"Peng",
""
],
[
"Yang",
"Haitang",
""
],
[
"Ying",
"Shuxuan",
""
]
] | Due to the exponential high gravitational red shift near the event horizon of a black hole, it might appear that the Hawking radiation would be highly sensitive to some unknown high energy physics. To study effects of any unknown physics at the Planck scale on the Hawking radiation, the dispersive field theory models h... |
1312.3759 | Masato Minamitsuji | Masato Minamitsuji | Solutions in the scalar-tensor theory with nonminimal derivative
coupling | Phys.Rev.D 89, 064017 (2014) | null | 10.1103/PhysRevD.89.064017 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present black hole type solutions in the scalar-tensor theory with
nonminimal derivative coupling to the Einstein tensor. The effects of the
nonminimal derivative coupling appear in the large scales, while the solutions
approach those in the Einstein gravity in the small scales. For the particular
coupling constan... | [
{
"created": "Fri, 13 Dec 2013 10:29:09 GMT",
"version": "v1"
},
{
"created": "Tue, 3 Jun 2014 05:41:48 GMT",
"version": "v2"
}
] | 2015-06-18 | [
[
"Minamitsuji",
"Masato",
""
]
] | We present black hole type solutions in the scalar-tensor theory with nonminimal derivative coupling to the Einstein tensor. The effects of the nonminimal derivative coupling appear in the large scales, while the solutions approach those in the Einstein gravity in the small scales. For the particular coupling constant ... |
0802.0459 | Janna Levin | Janna Levin and Gabe Perez-Giz | A Periodic Table for Black Hole Orbits | 42 pages, lots of figures | null | 10.1103/PhysRevD.77.103005 | null | gr-qc astro-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Understanding the dynamics around rotating black holes is imperative to the
success of the future gravitational wave observatories. Although integrable in
principle, test particle orbits in the Kerr spacetime can also be elaborate,
and while they have been studied extensively, classifying their general
properties has... | [
{
"created": "Mon, 4 Feb 2008 17:22:43 GMT",
"version": "v1"
}
] | 2009-11-13 | [
[
"Levin",
"Janna",
""
],
[
"Perez-Giz",
"Gabe",
""
]
] | Understanding the dynamics around rotating black holes is imperative to the success of the future gravitational wave observatories. Although integrable in principle, test particle orbits in the Kerr spacetime can also be elaborate, and while they have been studied extensively, classifying their general properties has b... |
2003.12179 | Matthew Fox | Matthew S. Fox | Electric Multipole Fields of Higher-Dimensional Massive Bodies | 11 pages; updated references; accepted to PRD | Phys. Rev. D 102, 044008 (2020) | 10.1103/PhysRevD.102.044008 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | It was shown in a recent paper [J. Math. Phys. 60, 102502 (2019)] that slowly
lowering an electric charge into a Schwarzschild-Tangherlini (ST) black hole
endows the final state with electric multipole fields, which implies the final
state geometry is not Reissner-Nordstr\"om-Tangherlini in nature. This
conclusion de... | [
{
"created": "Thu, 26 Mar 2020 22:42:20 GMT",
"version": "v1"
},
{
"created": "Tue, 28 Jul 2020 03:53:29 GMT",
"version": "v2"
}
] | 2020-08-06 | [
[
"Fox",
"Matthew S.",
""
]
] | It was shown in a recent paper [J. Math. Phys. 60, 102502 (2019)] that slowly lowering an electric charge into a Schwarzschild-Tangherlini (ST) black hole endows the final state with electric multipole fields, which implies the final state geometry is not Reissner-Nordstr\"om-Tangherlini in nature. This conclusion depa... |
1108.4012 | Alexandre Baranov | Alexandre M.Baranov | The Demonstration of Gravitational Phase Transition inside of Fluid
Static Ball | 7 pages, 1 figure, Journal of Siberian Federal University.
Mathematics & Physics | J.Sib.Fed.U.4(3):275-281,2011 | null | null | gr-qc hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | It is shown that at the center of gravitating fluid ball there is the phase
transition of second kind of gravitational field as a change of field's
algebraic type.
| [
{
"created": "Fri, 19 Aug 2011 17:20:35 GMT",
"version": "v1"
}
] | 2011-08-22 | [
[
"Baranov",
"Alexandre M.",
""
]
] | It is shown that at the center of gravitating fluid ball there is the phase transition of second kind of gravitational field as a change of field's algebraic type. |
gr-qc/9807031 | Frank Wilczek | Maulik K. Parikh and Frank Wilczek | Global Structure of Evaporating Black Holes | LaTeX, 10 pages, 1 figure; v2: references added, uncorrupted figure
file | Phys.Lett. B449 (1999) 24-29 | 10.1016/S0370-2693(99)00071-4 | PUPT-1801 and IASSNS-HEP-98-57 | gr-qc hep-th | null | By extending the charged Vaidya metric to cover all of spacetime, we obtain a
Penrose diagram for the formation and evaporation of a charged black hole. In
this construction, the singularity is time-like. The entire spacetime can be
predicted from initial conditions if boundary conditions at the singularity are
known... | [
{
"created": "Tue, 14 Jul 1998 20:41:51 GMT",
"version": "v1"
},
{
"created": "Fri, 4 Feb 2000 17:29:24 GMT",
"version": "v2"
}
] | 2009-10-31 | [
[
"Parikh",
"Maulik K.",
""
],
[
"Wilczek",
"Frank",
""
]
] | By extending the charged Vaidya metric to cover all of spacetime, we obtain a Penrose diagram for the formation and evaporation of a charged black hole. In this construction, the singularity is time-like. The entire spacetime can be predicted from initial conditions if boundary conditions at the singularity are known. |
gr-qc/9508042 | null | Walter Simon | Nuts have no hair | 8 pages, Latex file, no figures | Class.Quant.Grav.12:L125-L130,1995 | 10.1088/0264-9381/12/12/004 | null | gr-qc | null | We show that the Riemannian Kerr solutions are the only Riemannian,
Ricci-flat and asymptotically flat ${\rm C}^{2}$-metrics $g_{\mu\nu}$ on a
4-dimensional complete manifold ${\cal M}$ of topology ${\rm R}^{2} \times {\rm
S}^{2}$ which have (at least) a 1-parameter group of periodic isometries with
only isolated fix... | [
{
"created": "Fri, 18 Aug 1995 18:32:00 GMT",
"version": "v1"
}
] | 2010-04-06 | [
[
"Simon",
"Walter",
""
]
] | We show that the Riemannian Kerr solutions are the only Riemannian, Ricci-flat and asymptotically flat ${\rm C}^{2}$-metrics $g_{\mu\nu}$ on a 4-dimensional complete manifold ${\cal M}$ of topology ${\rm R}^{2} \times {\rm S}^{2}$ which have (at least) a 1-parameter group of periodic isometries with only isolated fixed... |
2207.01464 | Wen-Biao Han | Cheng Zhang, Wen-Biao Han, Shu-Cheng Yang | Gravitational-wave bursts from spin-precessing black holes in binary
systems | 5 pages, 2 figures | MNRAS 516, L107, 2022 | 10.1093/mnrasl/slac100 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Gravitational waves from precessing binary black holes exhibit new features
that are absent in non-precessionary systems. All current waveform models take
into account only the modulation of the signal due to precession. In this
letter, we find that this effect has its own signature, by gravitational
emission of a sh... | [
{
"created": "Mon, 4 Jul 2022 14:50:56 GMT",
"version": "v1"
},
{
"created": "Mon, 28 Nov 2022 07:16:29 GMT",
"version": "v2"
},
{
"created": "Wed, 21 Dec 2022 09:00:58 GMT",
"version": "v3"
}
] | 2022-12-22 | [
[
"Zhang",
"Cheng",
""
],
[
"Han",
"Wen-Biao",
""
],
[
"Yang",
"Shu-Cheng",
""
]
] | Gravitational waves from precessing binary black holes exhibit new features that are absent in non-precessionary systems. All current waveform models take into account only the modulation of the signal due to precession. In this letter, we find that this effect has its own signature, by gravitational emission of a shor... |
1012.1738 | Wolfgang Wieland | Wolfgang Wieland | Complex Ashtekar variables and reality conditions for Holst's action | 24 pages, 2 pictures | Annales H. Poincar\'e (2011), 1-24 | 10.1007/s00023-011-0134-z | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | From the Holst action in terms of complex valued Ashtekar variables
additional reality conditions mimicking the linear simplicity constraints of
spin foam gravity are found. In quantum theory with the results of You and
Rovelli we are able to implement these constraints weakly, that is in the sense
of Gupta and Bleul... | [
{
"created": "Wed, 8 Dec 2010 11:17:43 GMT",
"version": "v1"
},
{
"created": "Tue, 24 Jan 2012 11:30:05 GMT",
"version": "v2"
}
] | 2012-01-25 | [
[
"Wieland",
"Wolfgang",
""
]
] | From the Holst action in terms of complex valued Ashtekar variables additional reality conditions mimicking the linear simplicity constraints of spin foam gravity are found. In quantum theory with the results of You and Rovelli we are able to implement these constraints weakly, that is in the sense of Gupta and Bleuler... |
gr-qc/0302024 | Allan Widom | Y.N. Srivastava, A. Widom, G. Pizzella | Electronic Enhancements in the Detection of Gravitational Waves by
Metallic Antennae | 15 pages, one figure | null | null | null | gr-qc | null | For mechanical Weber gravitational wave antennae, it is thought that gravity
waves are weakly converted into acoustic vibrations. Acoustic vibrations in
metals (such as Aluminum) are experimentally known to be attenuated by the
creation of electron-hole pairs described via the electronic viscosity. These
final state ... | [
{
"created": "Fri, 7 Feb 2003 18:02:51 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Srivastava",
"Y. N.",
""
],
[
"Widom",
"A.",
""
],
[
"Pizzella",
"G.",
""
]
] | For mechanical Weber gravitational wave antennae, it is thought that gravity waves are weakly converted into acoustic vibrations. Acoustic vibrations in metals (such as Aluminum) are experimentally known to be attenuated by the creation of electron-hole pairs described via the electronic viscosity. These final state el... |
1305.2932 | Joshua Cooperman | Joshua H. Cooperman, Jonah Miller | A first look at transition amplitudes in (2+1)-dimensional causal
dynamical triangulations | 27 pages, 14 figures, 1 table; reflects published version | Classical and Quantum Gravity 31 (2014) 035012 | 10.1088/0264-9381/31/3/035012 | null | gr-qc hep-lat hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study a lattice regularization of the gravitational path integral--causal
dynamical triangulations--for (2+1)-dimensional Einstein gravity with positive
cosmological constant in the presence of past and future spacelike boundaries
of fixed intrinsic geometries. For spatial topology of a 2-sphere, we determine
the ... | [
{
"created": "Mon, 13 May 2013 20:01:04 GMT",
"version": "v1"
},
{
"created": "Mon, 10 Jun 2013 05:14:06 GMT",
"version": "v2"
},
{
"created": "Wed, 15 Jan 2014 10:35:20 GMT",
"version": "v3"
}
] | 2014-01-16 | [
[
"Cooperman",
"Joshua H.",
""
],
[
"Miller",
"Jonah",
""
]
] | We study a lattice regularization of the gravitational path integral--causal dynamical triangulations--for (2+1)-dimensional Einstein gravity with positive cosmological constant in the presence of past and future spacelike boundaries of fixed intrinsic geometries. For spatial topology of a 2-sphere, we determine the fo... |
1204.2122 | Bindu Anubha Bambah | Bindu A. Bambah, C. Mukku, T. Shreecharan and K. Siva Prasad | Entanglement in a model for Hawking radiation: An Application of
Quadratic Algebras | 20 pages, 15 figures. revised version with one figure removed | null | 10.1016/j.aop.2012.11.015 | null | gr-qc math-ph math.MP quant-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Quadratic polynomially deformed $su(1,1)$ and $su(2)$ algebras are utilised
in model Hamiltonians to show how the gravitational system consisting of a
black hole, infalling radiation and outgoing (Hawking) radiation can be solved
exactly. The models allow us to study the long-time behaviour of the black hole
and its ... | [
{
"created": "Tue, 10 Apr 2012 12:30:43 GMT",
"version": "v1"
},
{
"created": "Wed, 25 Apr 2012 04:56:26 GMT",
"version": "v2"
}
] | 2015-06-04 | [
[
"Bambah",
"Bindu A.",
""
],
[
"Mukku",
"C.",
""
],
[
"Shreecharan",
"T.",
""
],
[
"Prasad",
"K. Siva",
""
]
] | Quadratic polynomially deformed $su(1,1)$ and $su(2)$ algebras are utilised in model Hamiltonians to show how the gravitational system consisting of a black hole, infalling radiation and outgoing (Hawking) radiation can be solved exactly. The models allow us to study the long-time behaviour of the black hole and its ou... |
0803.0268 | Nobuyuki Sakai | Eduardo I. Guendelman (Ben Gurion U), Nobuyuki Sakai (Yamagata U) | The universe out of a breathing bubble | 12 pages, 5 figures, discussions and 2 figures added, to appear in
PRD | Phys.Rev.D77:125002,2008; Erratum-ibid.D80:049901,2009 | 10.1103/PhysRevD.77.125002 10.1103/PhysRevD.80.049901 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider the model of a false vacuum bubble with a thin wall where the
surface energy density is composed of two different components, "domain-wall"
type and "dust" type, with opposite signs. We find stably oscillating
solutions, which we call "breathing bubbles". By decay to a lower mass state,
such a breathing b... | [
{
"created": "Mon, 3 Mar 2008 15:53:00 GMT",
"version": "v1"
},
{
"created": "Mon, 14 Apr 2008 15:06:58 GMT",
"version": "v2"
}
] | 2014-11-18 | [
[
"Guendelman",
"Eduardo I.",
"",
"Ben Gurion U"
],
[
"Sakai",
"Nobuyuki",
"",
"Yamagata U"
]
] | We consider the model of a false vacuum bubble with a thin wall where the surface energy density is composed of two different components, "domain-wall" type and "dust" type, with opposite signs. We find stably oscillating solutions, which we call "breathing bubbles". By decay to a lower mass state, such a breathing bub... |
gr-qc/0612141 | M Iftime | M.D. Iftime | Gauge and General Relativity | 12 pages, submitted | null | null | null | gr-qc | null | One of the main features of covariant theories, in particular general
relativity, is that the field equation possesses gauge freedom associated with
global diffeomorphisms of the underlying manifold. I shall explain here how the
hole argument is a reflection of this gauge freedom.
Finally I shall point out some imp... | [
{
"created": "Fri, 22 Dec 2006 02:47:47 GMT",
"version": "v1"
},
{
"created": "Thu, 1 Mar 2007 16:49:51 GMT",
"version": "v2"
},
{
"created": "Tue, 29 Jan 2008 20:49:38 GMT",
"version": "v3"
}
] | 2008-01-29 | [
[
"Iftime",
"M. D.",
""
]
] | One of the main features of covariant theories, in particular general relativity, is that the field equation possesses gauge freedom associated with global diffeomorphisms of the underlying manifold. I shall explain here how the hole argument is a reflection of this gauge freedom. Finally I shall point out some implica... |
1502.07105 | Branislav Cvetkovi\"A | M. Blagojevi\'c and B. Cvetkovi\'c | Vaidya-like exact solutions with torsion | LaTeX, 15 pages, 2 figures; v2 minor revisions | JHEP05(2015)101 | 10.1007/JHEP05(2015)101 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Starting from the Oliva--Tempo--Troncoso black hole, a solution of the
Bergshoeff--Hohm--Townsend massive gravity, a class of the Vaidya-like exact
vacuum solutions with torsion is constructed in the three-dimensional
Poincar\'e gauge theory. A particular subclass of these solutions is shown to
possess the asymptotic... | [
{
"created": "Wed, 25 Feb 2015 10:11:18 GMT",
"version": "v1"
},
{
"created": "Thu, 16 Apr 2015 16:11:32 GMT",
"version": "v2"
}
] | 2016-08-08 | [
[
"Blagojević",
"M.",
""
],
[
"Cvetković",
"B.",
""
]
] | Starting from the Oliva--Tempo--Troncoso black hole, a solution of the Bergshoeff--Hohm--Townsend massive gravity, a class of the Vaidya-like exact vacuum solutions with torsion is constructed in the three-dimensional Poincar\'e gauge theory. A particular subclass of these solutions is shown to possess the asymptotic c... |
1910.12262 | Che-Yu Chen | Che-Yu Chen, Pisin Chen | Eikonal black hole ringings in generalized energy-momentum squared
gravity | 11 pages. Updated to match the published version | Phys. Rev. D 101, 064021 (2020) | 10.1103/PhysRevD.101.064021 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In the scope of black hole spectroscopy, several attempts have been made in
the past decades in order to test black holes or gravitational theories via
black hole quasinormal modes. In the eikonal approximation, the quasinormal
modes are generically associated with the photon ring of the black hole. This
corresponden... | [
{
"created": "Sun, 27 Oct 2019 13:31:05 GMT",
"version": "v1"
},
{
"created": "Wed, 11 Mar 2020 15:05:13 GMT",
"version": "v2"
}
] | 2020-03-12 | [
[
"Chen",
"Che-Yu",
""
],
[
"Chen",
"Pisin",
""
]
] | In the scope of black hole spectroscopy, several attempts have been made in the past decades in order to test black holes or gravitational theories via black hole quasinormal modes. In the eikonal approximation, the quasinormal modes are generically associated with the photon ring of the black hole. This correspondence... |
2209.13726 | Giovanni Amelino-Camelia | Giovanni Amelino-Camelia, Maria Grazia Di Luca, Giulia Gubitosi,
Giacomo Rosati, Giacomo D'Amico | Could quantum gravity slow down neutrinos? | Latex, 5 pages | Nat Astron (2023) | 10.1038/s41550-023-01993-z | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In addition to its implications for astrophysics, the hunt for GRB neutrinos
could also be significant in quantum-gravity research, since they are excellent
probes of the microscopic fabric of spacetime. Some previous studies based on
IceCube neutrinos had found intriguing preliminary evidence that some of them
might... | [
{
"created": "Tue, 27 Sep 2022 22:32:25 GMT",
"version": "v1"
}
] | 2023-07-13 | [
[
"Amelino-Camelia",
"Giovanni",
""
],
[
"Di Luca",
"Maria Grazia",
""
],
[
"Gubitosi",
"Giulia",
""
],
[
"Rosati",
"Giacomo",
""
],
[
"D'Amico",
"Giacomo",
""
]
] | In addition to its implications for astrophysics, the hunt for GRB neutrinos could also be significant in quantum-gravity research, since they are excellent probes of the microscopic fabric of spacetime. Some previous studies based on IceCube neutrinos had found intriguing preliminary evidence that some of them might b... |
2002.10262 | Alexander Dolgov | A.D. Dolgov | Electromagnetic phenomena around black holes | 6 pages, talk presented at 8th International Conference on New
Frontiers in Physics, 21-30 August, 2019, Conference Center of the Orthodox
Academy of Creta Crete, Greece | null | null | null | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Transition of gravitational waves, produced in the process of coalescence of
black hole binaries, into electromagnetic radiation in magnetic field is
discussed. The magnetic field is assumed to be created by rotating electrically
charged black holes. The process of electric charging of black holes due to
different mo... | [
{
"created": "Fri, 21 Feb 2020 16:38:01 GMT",
"version": "v1"
}
] | 2020-02-25 | [
[
"Dolgov",
"A. D.",
""
]
] | Transition of gravitational waves, produced in the process of coalescence of black hole binaries, into electromagnetic radiation in magnetic field is discussed. The magnetic field is assumed to be created by rotating electrically charged black holes. The process of electric charging of black holes due to different mobi... |
2008.07416 | Arick Shao | Alex McGill, Arick Shao | Null Geodesics and Improved Unique Continuation for Waves in
Asymptotically Anti-de Sitter Spacetimes | 55 pages, 2 figures | null | 10.1088/1361-6382/abcfd1 | null | gr-qc math.AP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider the question of whether solutions of Klein--Gordon equations on
asymptotically Anti-de Sitter spacetimes can be uniquely continued from the
conformal boundary. Positive answers were first given by the second author with
G. Holzegel, under suitable assumptions on the boundary geometry and with
boundary dat... | [
{
"created": "Mon, 17 Aug 2020 15:41:38 GMT",
"version": "v1"
}
] | 2021-02-03 | [
[
"McGill",
"Alex",
""
],
[
"Shao",
"Arick",
""
]
] | We consider the question of whether solutions of Klein--Gordon equations on asymptotically Anti-de Sitter spacetimes can be uniquely continued from the conformal boundary. Positive answers were first given by the second author with G. Holzegel, under suitable assumptions on the boundary geometry and with boundary data ... |
gr-qc/9711033 | Vladimir Dzhunushaliev | V.D. Dzhunushaliev | Multidimensional Gravity on the Principal Bundles | REVTEX, 13pages, 2 EPS figures | Gen.Rel.Grav. 30 (1998) 583 | 10.1023/A:1018818224423 | null | gr-qc | null | The multidimensional gravity on the total space of principal bundle is
considered. In this theory the gauge fields arise as nondiagonal components of
multidimensional metric. The spherically symmetric and cosmology solutions for
gravity on SU(2) principal bundle are obtained. The static spherically
symmetric solution... | [
{
"created": "Mon, 10 Nov 1997 09:51:02 GMT",
"version": "v1"
}
] | 2015-06-25 | [
[
"Dzhunushaliev",
"V. D.",
""
]
] | The multidimensional gravity on the total space of principal bundle is considered. In this theory the gauge fields arise as nondiagonal components of multidimensional metric. The spherically symmetric and cosmology solutions for gravity on SU(2) principal bundle are obtained. The static spherically symmetric solution i... |
gr-qc/9903053 | Bg Sidharth | B.G. Sidharth | Large Scale Structures in the Universe | 2 pages, TeX | null | null | null | gr-qc | null | In this brief communication we show why superclusters would naturally arise
in the universe.
| [
{
"created": "Sun, 14 Mar 1999 12:58:44 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Sidharth",
"B. G.",
""
]
] | In this brief communication we show why superclusters would naturally arise in the universe. |
1512.05453 | Leo Stein | Robert McNees, Leo C. Stein, and Nicol\'as Yunes | Extremal Black Holes in Dynamical Chern-Simons Gravity | 25+9 pages (single column), 10 figures, 1 table; matches published
version | Class. Quantum Grav. 33, 235013 (2016) | 10.1088/0264-9381/33/23/235013 | null | gr-qc astro-ph.HE hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Rapidly rotating black hole solutions in theories beyond general relativity
play a key role in experimental gravity, as they allow us to compute
observables in extreme spacetimes that deviate from the predictions of general
relativity. Such solutions are often difficult to find in
beyond-general-relativity theories d... | [
{
"created": "Thu, 17 Dec 2015 03:25:44 GMT",
"version": "v1"
},
{
"created": "Sun, 27 Nov 2016 01:14:56 GMT",
"version": "v2"
}
] | 2016-11-29 | [
[
"McNees",
"Robert",
""
],
[
"Stein",
"Leo C.",
""
],
[
"Yunes",
"Nicolás",
""
]
] | Rapidly rotating black hole solutions in theories beyond general relativity play a key role in experimental gravity, as they allow us to compute observables in extreme spacetimes that deviate from the predictions of general relativity. Such solutions are often difficult to find in beyond-general-relativity theories due... |
1810.11761 | Saurya Das | Vasil Todorinov, Pasquale Bosso, Saurya Das | Relativistic Generalized Uncertainty Principle | 6 pages, Revtex | Annals Phys. 405 (2019) 92-100 | 10.1016/j.aop.2019.03.014 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The Generalized Uncertainty Principle and the related minimum length are
normally considered in non-relativistic Quantum Mechanics. Extending it to
relativistic theories is important for having a Lorentz invariant minimum
length and for testing the modified Heisenberg principle at high energies.In
this paper, we form... | [
{
"created": "Sun, 28 Oct 2018 05:50:58 GMT",
"version": "v1"
}
] | 2021-06-11 | [
[
"Todorinov",
"Vasil",
""
],
[
"Bosso",
"Pasquale",
""
],
[
"Das",
"Saurya",
""
]
] | The Generalized Uncertainty Principle and the related minimum length are normally considered in non-relativistic Quantum Mechanics. Extending it to relativistic theories is important for having a Lorentz invariant minimum length and for testing the modified Heisenberg principle at high energies.In this paper, we formul... |
gr-qc/9912014 | Vesselin Petkov | Vesselin Petkov | Probing the anisotropic velocity of light in a gravitational field:
another test of general relativity | 5 pages, LaTeX, small changes and reference added; epic.sty is
required (also available at http://alcor.concordia.ca/~vpetkov/epic.sty) | Chap. 7.6 of "Relativity and the Nature of Spacetime," 2nd ed
(Springer, 2009) | null | null | gr-qc | null | A corollary of general relativity that the average velocity of light between
two points in a gravitational field is anisotropic has been overlooked. It is
shown that this anisotropy can be probed by an experiment which constitutes
another test of general relativity.
| [
{
"created": "Thu, 2 Dec 1999 21:27:52 GMT",
"version": "v1"
},
{
"created": "Fri, 3 Dec 1999 03:14:44 GMT",
"version": "v2"
},
{
"created": "Sat, 4 Dec 1999 06:02:22 GMT",
"version": "v3"
},
{
"created": "Sun, 19 Dec 1999 07:44:00 GMT",
"version": "v4"
},
{
"crea... | 2011-11-18 | [
[
"Petkov",
"Vesselin",
""
]
] | A corollary of general relativity that the average velocity of light between two points in a gravitational field is anisotropic has been overlooked. It is shown that this anisotropy can be probed by an experiment which constitutes another test of general relativity. |
0912.5164 | Kensuke Homma | Yasunori Fujii and Kensuke Homma | A Laboratory Search for Dark Energy | 10 pages, 2 figures | null | null | null | gr-qc hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The discovery of the accelerating universe indicates strongly the presence of
a scalar field which is not only expected to solve today's version of the
cosmological constant problem, or the fine-tuning and the coincidence problems,
but also provides a way to understand dark energy. It has also been shown that
Jordan'... | [
{
"created": "Mon, 28 Dec 2009 12:51:27 GMT",
"version": "v1"
},
{
"created": "Wed, 24 Feb 2010 11:22:09 GMT",
"version": "v2"
}
] | 2010-02-24 | [
[
"Fujii",
"Yasunori",
""
],
[
"Homma",
"Kensuke",
""
]
] | The discovery of the accelerating universe indicates strongly the presence of a scalar field which is not only expected to solve today's version of the cosmological constant problem, or the fine-tuning and the coincidence problems, but also provides a way to understand dark energy. It has also been shown that Jordan's ... |
1703.09525 | Donato Bini | Donato Bini, Andrea Geralico and Robert T. Jantzen | Gyroscope precession along general timelike geodesics in a Kerr black
hole spacetime | 20 pages, 5 figures, revtex macros used | Phys. Rev. D 95, 124022 (2017) | 10.1103/PhysRevD.95.124022 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The precession angular velocity of a gyroscope moving along a general
geodesic in the Kerr spacetime is analyzed using the geometric properties of
the spacetime. Natural frames along the gyroscope world line are explicitly
constructed by boosting frames adapted to fundamental observers. A novel
geometrical descriptio... | [
{
"created": "Tue, 28 Mar 2017 12:07:22 GMT",
"version": "v1"
}
] | 2017-06-21 | [
[
"Bini",
"Donato",
""
],
[
"Geralico",
"Andrea",
""
],
[
"Jantzen",
"Robert T.",
""
]
] | The precession angular velocity of a gyroscope moving along a general geodesic in the Kerr spacetime is analyzed using the geometric properties of the spacetime. Natural frames along the gyroscope world line are explicitly constructed by boosting frames adapted to fundamental observers. A novel geometrical description ... |
gr-qc/9509034 | null | K. S. Virbhadra | Energy and momentum of cylindrical gravitational waves. II | 8 pages, LaTex, To appear in Pramana- J. Physics | Pramana 45 (1995) 215-219 | 10.1007/BF02848265 | null | gr-qc astro-ph hep-th | null | Recently Nathan Rosen and the present author obtained the energy and momentum
densities of cylindrical gravitational waves in Einstein's prescription and
found them to be finite and reasonable. In the present paper we calculate the
same in prescriptions of Tolman as well as Landau and Lifshitz and discuss the
results... | [
{
"created": "Thu, 21 Sep 1995 13:20:00 GMT",
"version": "v1"
}
] | 2009-10-28 | [
[
"Virbhadra",
"K. S.",
""
]
] | Recently Nathan Rosen and the present author obtained the energy and momentum densities of cylindrical gravitational waves in Einstein's prescription and found them to be finite and reasonable. In the present paper we calculate the same in prescriptions of Tolman as well as Landau and Lifshitz and discuss the results. |
1501.01644 | Joel Berg\'e | Joel Berg\'e, Pierre Touboul, Manuel Rodrigues | Status of MICROSCOPE, a mission to test the Equivalence Principle in
space | Proceedings of LISA Symposium X; accepted for publication in Journal
of Physics: Conference Series | null | 10.1088/1742-6596/610/1/012009 | null | gr-qc astro-ph.IM | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | MICROSCOPE is a French Space Agency mission that aims to test the Weak
Equivalence Principle in space down to an accuracy of $10^{-15}$. This is two
orders of magnitude better than the current constraints, which will allow us to
test General Relativity as well as theories beyond General Relativity which
predict a pos... | [
{
"created": "Wed, 7 Jan 2015 21:07:42 GMT",
"version": "v1"
}
] | 2015-06-11 | [
[
"Bergé",
"Joel",
""
],
[
"Touboul",
"Pierre",
""
],
[
"Rodrigues",
"Manuel",
""
]
] | MICROSCOPE is a French Space Agency mission that aims to test the Weak Equivalence Principle in space down to an accuracy of $10^{-15}$. This is two orders of magnitude better than the current constraints, which will allow us to test General Relativity as well as theories beyond General Relativity which predict a possi... |
gr-qc/0606091 | Wlodzimierz Piechocki | Przemyslaw Malkiewicz and Wlodzimierz Piechocki | Probing the cosmological singularity with a particle | 19 pages, 7 figures, revtex4, added references, version accepted for
publication in Class. Quantum Grav | Class.Quant.Grav. 23 (2006) 7045-7062 | 10.1088/0264-9381/23/23/026 | null | gr-qc astro-ph hep-th quant-ph | null | We examine the transition of a particle across the singularity of the
compactified Milne (CM) space. Quantization of the phase space of a particle
and testing the quantum stability of its dynamics are consistent to one
another. One type of transition of a quantum particle is described by a quantum
state that is conti... | [
{
"created": "Wed, 21 Jun 2006 15:54:23 GMT",
"version": "v1"
},
{
"created": "Mon, 9 Oct 2006 08:19:19 GMT",
"version": "v2"
}
] | 2009-11-11 | [
[
"Malkiewicz",
"Przemyslaw",
""
],
[
"Piechocki",
"Wlodzimierz",
""
]
] | We examine the transition of a particle across the singularity of the compactified Milne (CM) space. Quantization of the phase space of a particle and testing the quantum stability of its dynamics are consistent to one another. One type of transition of a quantum particle is described by a quantum state that is continu... |
1701.07554 | Andronikos Paliathanasis | N. Dimakis, Alex Giacomini and Andronikos Paliathanasis | Integrability from Point Symmetries in a family of Cosmological
Horndeski Lagrangians | 13 pages; new material and discussion improved; version accepted for
publication by EPJC | null | 10.1140/epjc/s10052-017-5029-9 | null | gr-qc hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | For a family of Horndeski theories, formulated in terms of a generalized
Galileon model, we study the integrability of the field equations in a
Friedmann-Lema\^{\i}tre-Robertson-Walker spacetime. We are interested in point
transformations which leave invariant the field equations. Noether's theorem is
applied to dete... | [
{
"created": "Thu, 26 Jan 2017 02:42:01 GMT",
"version": "v1"
},
{
"created": "Mon, 27 Feb 2017 15:18:29 GMT",
"version": "v2"
},
{
"created": "Wed, 28 Jun 2017 14:08:51 GMT",
"version": "v3"
}
] | 2017-08-02 | [
[
"Dimakis",
"N.",
""
],
[
"Giacomini",
"Alex",
""
],
[
"Paliathanasis",
"Andronikos",
""
]
] | For a family of Horndeski theories, formulated in terms of a generalized Galileon model, we study the integrability of the field equations in a Friedmann-Lema\^{\i}tre-Robertson-Walker spacetime. We are interested in point transformations which leave invariant the field equations. Noether's theorem is applied to determ... |
2212.04414 | Marius Adrian Oancea | Marius A. Oancea, Achal Kumar | Semiclassical analysis of Dirac fields on curved spacetime | null | Phys. Rev. D 107, 044029 (2023) | 10.1103/PhysRevD.107.044029 | null | gr-qc hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present a semiclassical analysis for Dirac fields on an arbitrary
spacetime background and in the presence of a fixed electromagnetic field. Our
approach is based on a Wentzel-Kramers-Brillouin approximation, and the results
are analyzed at leading and next-to-leading order in the small expansion
parameter $\hbar$... | [
{
"created": "Thu, 8 Dec 2022 17:12:00 GMT",
"version": "v1"
},
{
"created": "Tue, 14 Feb 2023 19:26:26 GMT",
"version": "v2"
}
] | 2023-02-16 | [
[
"Oancea",
"Marius A.",
""
],
[
"Kumar",
"Achal",
""
]
] | We present a semiclassical analysis for Dirac fields on an arbitrary spacetime background and in the presence of a fixed electromagnetic field. Our approach is based on a Wentzel-Kramers-Brillouin approximation, and the results are analyzed at leading and next-to-leading order in the small expansion parameter $\hbar$. ... |
1206.0413 | Willians Barreto | L. Herrera (UPV and UCV) and W. Barreto (ULA) | Electromagnetic radiation produces frame dragging | 8 pages RevTex 4-1; updated version to appear in Physical Review D | Phys. Rev. D 86, 064014 (2012) | 10.1103/PhysRevD.86.064014 | null | gr-qc astro-ph.IM | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | It is shown that for a generic electrovacuum spacetime, electromagnetic
radiation produces vorticity of worldlines of observers in a Bondi--Sachs
frame. Such an effect (and the ensuing gyroscope precession with respect to the
lattice) which is a reminiscence of generation of vorticity by gravitational
radiation, may ... | [
{
"created": "Sun, 3 Jun 2012 00:17:02 GMT",
"version": "v1"
},
{
"created": "Mon, 6 Aug 2012 20:19:19 GMT",
"version": "v2"
}
] | 2015-06-05 | [
[
"Herrera",
"L.",
"",
"UPV and UCV"
],
[
"Barreto",
"W.",
"",
"ULA"
]
] | It is shown that for a generic electrovacuum spacetime, electromagnetic radiation produces vorticity of worldlines of observers in a Bondi--Sachs frame. Such an effect (and the ensuing gyroscope precession with respect to the lattice) which is a reminiscence of generation of vorticity by gravitational radiation, may be... |
1603.00052 | Peter Taylor | Abraham I. Harte, \'Eanna \'E. Flanagan and Peter Taylor | Self-forces on static bodies in arbitrary dimensions | null | Phys. Rev. D 93, 124054 (2016) | 10.1103/PhysRevD.93.124054 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We derive exact expressions for the scalar and electromagnetic self-forces
and self-torques acting on arbitrary static extended bodies in arbitrary static
spacetimes with any number of dimensions. Non-perturbatively, our results are
identical in all dimensions. Meaningful point particle limits are quite
different in ... | [
{
"created": "Mon, 29 Feb 2016 21:34:25 GMT",
"version": "v1"
}
] | 2016-06-29 | [
[
"Harte",
"Abraham I.",
""
],
[
"Flanagan",
"Éanna É.",
""
],
[
"Taylor",
"Peter",
""
]
] | We derive exact expressions for the scalar and electromagnetic self-forces and self-torques acting on arbitrary static extended bodies in arbitrary static spacetimes with any number of dimensions. Non-perturbatively, our results are identical in all dimensions. Meaningful point particle limits are quite different in di... |
gr-qc/9709023 | Jorge Pullin | Jorge Pullin | Matters of Gravity, the newsletter of the APS TG on gravitation | 27 pages LaTeX, uses html.sty, available (now also in html!) at
http://vishnu.nirvana.phys.psu.edu/mog.html | null | null | MOG-10 | gr-qc | null | Contents:
*News:
April 1997 Joint APS/AAPT Meeting, by Beverly Berger
The physics survey and committee on gravitational physics, by Jim Hartle
*Research Briefs:
Instability of rotating stars to axial perturbations, by Sharon Morsink
LIGO project status, by Stan Whitcomb
The Search for Frame-Dragging, by... | [
{
"created": "Wed, 10 Sep 1997 19:49:09 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Pullin",
"Jorge",
""
]
] | Contents: *News: April 1997 Joint APS/AAPT Meeting, by Beverly Berger The physics survey and committee on gravitational physics, by Jim Hartle *Research Briefs: Instability of rotating stars to axial perturbations, by Sharon Morsink LIGO project status, by Stan Whitcomb The Search for Frame-Dragging, by Clifford Will *... |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.