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
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1707.01333 | Bibhas Majhi Ranjan | Ananya Adhikari, Krishnakanta Bhattacharya, Chandramouli Chowdhury,
Bibhas Ranjan Majhi | Fluctuation-dissipation in accelerated frames | The para above Eq. (6) has been modified, to appear in Phys. Rev. D | Phys. Rev. D 97, 045003 (2018) | 10.1103/PhysRevD.97.045003 | null | gr-qc cond-mat.stat-mech hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | An uniformly accelerated (Rindler) observer will detect particles in the
Minkowski vacuum, known as Unruh effect. The spectrum is thermal and the
temperature is given by that of the Killing horizon, which is proportional to
the acceleration. Considering these particles are kept in a thermal bath with
this temperature... | [
{
"created": "Wed, 5 Jul 2017 11:48:00 GMT",
"version": "v1"
},
{
"created": "Mon, 10 Jul 2017 09:29:48 GMT",
"version": "v2"
},
{
"created": "Tue, 2 Jan 2018 06:52:18 GMT",
"version": "v3"
},
{
"created": "Fri, 19 Jan 2018 03:41:30 GMT",
"version": "v4"
}
] | 2018-02-07 | [
[
"Adhikari",
"Ananya",
""
],
[
"Bhattacharya",
"Krishnakanta",
""
],
[
"Chowdhury",
"Chandramouli",
""
],
[
"Majhi",
"Bibhas Ranjan",
""
]
] | An uniformly accelerated (Rindler) observer will detect particles in the Minkowski vacuum, known as Unruh effect. The spectrum is thermal and the temperature is given by that of the Killing horizon, which is proportional to the acceleration. Considering these particles are kept in a thermal bath with this temperature, ... |
1909.05588 | Tatyana P. Shestakova | T. P. Shestakova | On the meaning of the wave function of the Universe | 15 pages, 1 figure, to be published in Int. J. Mod. Phys. D | Int. J. Mod. Phys. D28 (2019) 1941009 | 10.1142/S0218271819410098 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The meaning of the wave function of the Universe was actively discussed in
1980s. In most works on quantum cosmology it is accepted that the wave function
is a probability amplitude for the Universe to have some space geometry, or to
be found in some point of the Wheeler superspace. It seems that the wave
function gi... | [
{
"created": "Thu, 12 Sep 2019 12:05:25 GMT",
"version": "v1"
}
] | 2019-12-20 | [
[
"Shestakova",
"T. P.",
""
]
] | The meaning of the wave function of the Universe was actively discussed in 1980s. In most works on quantum cosmology it is accepted that the wave function is a probability amplitude for the Universe to have some space geometry, or to be found in some point of the Wheeler superspace. It seems that the wave function give... |
2111.14016 | Matt Visser | Matt Visser (Victoria University of Wellington) | Feynman's i-epsilon prescription, almost real spacetimes, and acceptable
complex spacetimes | V1: 22 pages; 50 references; V2: Now 27 pages; 54 references.
Significant improvement (and restructuring) in presentation; now includes a
tetrad analysis. V3: Now 33 pages; 55 references. Significant pedagogical
improvements, sign conventions more carefully explained and standardized.
This version accepted for ... | null | 10.1007/JHEP08(2022)129 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Feynman's i-epsilon prescription for quantum field theoretic propagators has
a quite natural reinterpretation in terms of a slight complex deformation of
the Minkowski spacetime metric. Though originally a strictly flat-space result,
once reinterpreted in this way, these ideas can be naturally extended first to
semi-... | [
{
"created": "Sun, 28 Nov 2021 01:22:31 GMT",
"version": "v1"
},
{
"created": "Sun, 5 Dec 2021 08:21:01 GMT",
"version": "v2"
},
{
"created": "Wed, 13 Jul 2022 10:03:31 GMT",
"version": "v3"
}
] | 2022-09-07 | [
[
"Visser",
"Matt",
"",
"Victoria University of Wellington"
]
] | Feynman's i-epsilon prescription for quantum field theoretic propagators has a quite natural reinterpretation in terms of a slight complex deformation of the Minkowski spacetime metric. Though originally a strictly flat-space result, once reinterpreted in this way, these ideas can be naturally extended first to semi-cl... |
2201.13163 | Parth Bambhaniya | Siddharth Madan, Parth Bambhaniya | Tidal force effects and periodic orbits in null naked singularity
spacetime | 9 pages, 10 figures | null | null | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | Naked singularities form during the gravitational collapse of inhomogeneous
matter clouds. The final nature of the singularity depends on the initial
conditions of the matter properties and types of matter profiles. These naked
singularities can also be divided into two types: null-like and timelike
singularities. Th... | [
{
"created": "Mon, 31 Jan 2022 12:18:20 GMT",
"version": "v1"
},
{
"created": "Tue, 31 May 2022 09:17:44 GMT",
"version": "v2"
}
] | 2022-06-01 | [
[
"Madan",
"Siddharth",
""
],
[
"Bambhaniya",
"Parth",
""
]
] | Naked singularities form during the gravitational collapse of inhomogeneous matter clouds. The final nature of the singularity depends on the initial conditions of the matter properties and types of matter profiles. These naked singularities can also be divided into two types: null-like and timelike singularities. The ... |
0907.1452 | Tigran Tchrakian | Eugen Radu, D. H. Tchrakian | Gravitating Yang--Mills fields in all dimensions | Presented to Heraeus School, Bremen, September 2008 | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A classification of gravitating Yang--Mills systems in all dimensions is
presented. These systems are set up so that they support finite energy
solutions. Both regular and black hole solutions are considered, the former
being the limit of the latter for vanishing event horizon radius. Special
attention is paid to sys... | [
{
"created": "Thu, 9 Jul 2009 15:16:55 GMT",
"version": "v1"
}
] | 2009-07-10 | [
[
"Radu",
"Eugen",
""
],
[
"Tchrakian",
"D. H.",
""
]
] | A classification of gravitating Yang--Mills systems in all dimensions is presented. These systems are set up so that they support finite energy solutions. Both regular and black hole solutions are considered, the former being the limit of the latter for vanishing event horizon radius. Special attention is paid to syste... |
2310.00857 | P. A. Gonzalez | Ram\'on B\'ecar, P. A. Gonz\'alez, Eleftherios Papantonopoulos, Yerko
V\'asquez | Massive Scalar Field Perturbations of Black Holes Surrounded by Dark
Matter | Version accepted for publication in EPJC | null | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider scalar field perturbations in the background of black holes
immersed in perfect fluid dark matter (PFDM). We find, by using the sixth order
Wentzel-Kramers-Brillouin (WKB) approximation, that the longest-lived modes are
the ones with higher angular number, for a scalar field mass smaller than a
critical v... | [
{
"created": "Mon, 2 Oct 2023 02:39:31 GMT",
"version": "v1"
},
{
"created": "Mon, 4 Mar 2024 12:55:41 GMT",
"version": "v2"
}
] | 2024-03-05 | [
[
"Bécar",
"Ramón",
""
],
[
"González",
"P. A.",
""
],
[
"Papantonopoulos",
"Eleftherios",
""
],
[
"Vásquez",
"Yerko",
""
]
] | We consider scalar field perturbations in the background of black holes immersed in perfect fluid dark matter (PFDM). We find, by using the sixth order Wentzel-Kramers-Brillouin (WKB) approximation, that the longest-lived modes are the ones with higher angular number, for a scalar field mass smaller than a critical val... |
1209.6088 | Peter Taylor | Peter Taylor | Self-force on an arbitrarily coupled static scalar particle in a
wormhole space-time | 6 pages, 1 figure, Significant changes/corrections made to previous
version | null | 10.1103/PhysRevD.87.024046 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper, we consider the problem of computing the self-force and
self-energy for a static scalar charge in a wormhole space-time with throat
profile $r(\rho)=\sqrt{\rho^{2}+a^{2}}$ for arbitrary coupling of the field to
the curvature. This calculation has previously been considered numerically by
Bezerra and Kh... | [
{
"created": "Wed, 26 Sep 2012 22:08:41 GMT",
"version": "v1"
},
{
"created": "Sat, 20 Oct 2012 22:51:36 GMT",
"version": "v2"
}
] | 2013-05-30 | [
[
"Taylor",
"Peter",
""
]
] | In this paper, we consider the problem of computing the self-force and self-energy for a static scalar charge in a wormhole space-time with throat profile $r(\rho)=\sqrt{\rho^{2}+a^{2}}$ for arbitrary coupling of the field to the curvature. This calculation has previously been considered numerically by Bezerra and Khus... |
1305.5896 | Giovanni Otalora | G. Otalora | Cosmological dynamics of tachyonic teleparallel dark energy | 14 pages, 1 figure. arXiv admin note: text overlap with
arXiv:1305.0474 | Phys. Rev. D 88, (2013) 063505 | 10.1103/PhysRevD.88.063505 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A detailed dynamical analysis of the tachyonic teleparallel dark energy
model, in which a non-canonical scalar field (tachyon field) is non-minimally
coupled to gravitation, is performed. It is found that, when the non-minimal
coupling is ruled by a dynamically changing coefficient $\alpha\equiv
f_{,\phi}/\sqrt{f}$, ... | [
{
"created": "Sat, 25 May 2013 07:28:27 GMT",
"version": "v1"
},
{
"created": "Sat, 31 Aug 2013 00:57:10 GMT",
"version": "v2"
}
] | 2013-09-06 | [
[
"Otalora",
"G.",
""
]
] | A detailed dynamical analysis of the tachyonic teleparallel dark energy model, in which a non-canonical scalar field (tachyon field) is non-minimally coupled to gravitation, is performed. It is found that, when the non-minimal coupling is ruled by a dynamically changing coefficient $\alpha\equiv f_{,\phi}/\sqrt{f}$, wi... |
2304.12148 | Justin Janquart | Justin Janquart, K. Haris, Otto A. Hannuksela, Chris Van Den Broeck | The Return of GOLUM: Improving Distributed Joint Parameter Estimation
for Strongly-Lensed Gravitational Waves | 11 pages, 9 figures | null | 10.1093/mnras/stad2838 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Owing to the forecasted improved sensitivity of ground-based
gravitational-wave detectors, new research avenues will become accessible. This
is the case for gravitational-wave strong lensing, predicted with a
non-negligible observation rate in the coming years. However, because one needs
to investigate all the event ... | [
{
"created": "Mon, 24 Apr 2023 14:58:10 GMT",
"version": "v1"
}
] | 2023-10-18 | [
[
"Janquart",
"Justin",
""
],
[
"Haris",
"K.",
""
],
[
"Hannuksela",
"Otto A.",
""
],
[
"Broeck",
"Chris Van Den",
""
]
] | Owing to the forecasted improved sensitivity of ground-based gravitational-wave detectors, new research avenues will become accessible. This is the case for gravitational-wave strong lensing, predicted with a non-negligible observation rate in the coming years. However, because one needs to investigate all the event pa... |
2002.12590 | Adrien Kuntz | Philippe Brax, Lavinia Heisenberg, Adrien Kuntz | Unveiling the Galileon in a three-body system : scalar and gravitational
wave production | 29 pages, 1 figure. Version accepted for publication in JCAP | null | 10.1088/1475-7516/2020/05/012 | null | gr-qc astro-ph.CO hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider the prospect of detecting cubic Galileons through their imprint
on gravitational wave signals from a triple system. Namely, we consider a
massive Black Hole (BH) surrounded by a binary system of two smaller BHs. We
assume that the three BHs acquire a conformal coupling to the scalar field
whose origin cou... | [
{
"created": "Fri, 28 Feb 2020 08:13:49 GMT",
"version": "v1"
},
{
"created": "Fri, 1 May 2020 09:51:59 GMT",
"version": "v2"
}
] | 2020-05-07 | [
[
"Brax",
"Philippe",
""
],
[
"Heisenberg",
"Lavinia",
""
],
[
"Kuntz",
"Adrien",
""
]
] | We consider the prospect of detecting cubic Galileons through their imprint on gravitational wave signals from a triple system. Namely, we consider a massive Black Hole (BH) surrounded by a binary system of two smaller BHs. We assume that the three BHs acquire a conformal coupling to the scalar field whose origin could... |
2407.11270 | Andrea Di Pinto | Andrea Di Pinto | Charged and Rotating Black Holes in a Melvin-swirling Universe | Master's thesis (Defended 09/07/2024, University of Milan -
Universit\`a degli Studi di Milano) | null | null | null | gr-qc hep-th | http://creativecommons.org/licenses/by/4.0/ | In this thesis, we present new exact solutions of Einstein-Maxwell's field
equations, with the most general case being the dyonic Kerr-Newman black hole
in a Melvin-swirling universe, obtained analytically using the Ehlers-Harrison
transformations of the Ernst formalism. Subsequently, for each possible
sub-case, we a... | [
{
"created": "Mon, 15 Jul 2024 22:30:41 GMT",
"version": "v1"
}
] | 2024-07-17 | [
[
"Di Pinto",
"Andrea",
""
]
] | In this thesis, we present new exact solutions of Einstein-Maxwell's field equations, with the most general case being the dyonic Kerr-Newman black hole in a Melvin-swirling universe, obtained analytically using the Ehlers-Harrison transformations of the Ernst formalism. Subsequently, for each possible sub-case, we ana... |
2009.03428 | Houri Ziaeepour | Houri Ziaeepour | Making a Quantum Universe: Symmetry and Gravity | 30 pages; No figure; v3: published version | Universe 2020, 6(11), 194 | 10.3390/universe6110194 | null | gr-qc hep-th quant-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | So far, none of attempts to quantize gravity has led to a satisfactory model
that not only describe gravity in the realm of a quantum world, but also its
relation to elementary particles and other fundamental forces. Here, we outline
the preliminary results for a model of quantum universe, in which gravity is
fundame... | [
{
"created": "Mon, 7 Sep 2020 21:15:45 GMT",
"version": "v1"
},
{
"created": "Mon, 12 Oct 2020 19:38:04 GMT",
"version": "v2"
},
{
"created": "Thu, 25 Nov 2021 11:09:23 GMT",
"version": "v3"
}
] | 2021-11-29 | [
[
"Ziaeepour",
"Houri",
""
]
] | So far, none of attempts to quantize gravity has led to a satisfactory model that not only describe gravity in the realm of a quantum world, but also its relation to elementary particles and other fundamental forces. Here, we outline the preliminary results for a model of quantum universe, in which gravity is fundament... |
1610.06822 | David Delphenich | D. H. Delphenich | Line geometry and electromagnetism IV: electromagnetic fields as
infinitesimal Lorentz transformations | 33 pages, continuation of a series | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | It is first shown that the scalar product on any orthogonal space (V, g)
allows one to define linear isomorphisms of the vector spaces of bivectors and
2-forms on V with the underlying vector spaces of the Lie algebra so(p, q) and
its dual, respectively. When those isomorphisms are applied to the
electromagnetic exci... | [
{
"created": "Fri, 21 Oct 2016 15:18:24 GMT",
"version": "v1"
}
] | 2016-10-24 | [
[
"Delphenich",
"D. H.",
""
]
] | It is first shown that the scalar product on any orthogonal space (V, g) allows one to define linear isomorphisms of the vector spaces of bivectors and 2-forms on V with the underlying vector spaces of the Lie algebra so(p, q) and its dual, respectively. When those isomorphisms are applied to the electromagnetic excita... |
0812.2038 | Hideki Maeda | Hideki Maeda, Mokhtar Hassaine, and Cristian Martinez | Lovelock black holes with a nonlinear Maxwell field | 9 pages, no figure; v2, references added, published version in
Physical Review D | PhysRev.D79.044012,2009 | 10.1103/PhysRevD.79.044012 | CECS-PHY-08/20 | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We derive electrically charged black hole solutions of the
Einstein-Gauss-Bonnet equations with a nonlinear electrodynamics source in $n
(\ge 5)$ dimensions. The spacetimes are given as a warped product $M^2 \times
K^{n-2}$, where $K^{n-2}$ is a $(n-2)$-dimensional constant curvature space. We
establish a generalized... | [
{
"created": "Wed, 10 Dec 2008 21:54:25 GMT",
"version": "v1"
},
{
"created": "Sat, 21 Feb 2009 23:52:56 GMT",
"version": "v2"
}
] | 2009-08-03 | [
[
"Maeda",
"Hideki",
""
],
[
"Hassaine",
"Mokhtar",
""
],
[
"Martinez",
"Cristian",
""
]
] | We derive electrically charged black hole solutions of the Einstein-Gauss-Bonnet equations with a nonlinear electrodynamics source in $n (\ge 5)$ dimensions. The spacetimes are given as a warped product $M^2 \times K^{n-2}$, where $K^{n-2}$ is a $(n-2)$-dimensional constant curvature space. We establish a generalized B... |
1808.07829 | Yen Chin Ong | B. Eslam Panah, S. H. Hendi, Y. C. Ong | Black Hole Remnant in Massive Gravity | version accepted for publication | Physics of the Dark Universe 27 (2020) 100452 | 10.1016/j.dark.2019.100452 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The possibility of a nonzero graviton mass has been widely pursued in the
literature. In this work we investigate a black hole solution in massive
gravity with a degenerate fiducial metric often used in the literature. We find
that the end state of Hawking evaporation leads to black hole remnant, which
could help to ... | [
{
"created": "Thu, 23 Aug 2018 16:37:18 GMT",
"version": "v1"
},
{
"created": "Fri, 7 Dec 2018 16:10:54 GMT",
"version": "v2"
},
{
"created": "Mon, 6 Jan 2020 16:26:49 GMT",
"version": "v3"
}
] | 2020-01-07 | [
[
"Panah",
"B. Eslam",
""
],
[
"Hendi",
"S. H.",
""
],
[
"Ong",
"Y. C.",
""
]
] | The possibility of a nonzero graviton mass has been widely pursued in the literature. In this work we investigate a black hole solution in massive gravity with a degenerate fiducial metric often used in the literature. We find that the end state of Hawking evaporation leads to black hole remnant, which could help to am... |
gr-qc/0106023 | Naresh Dadhich | Naresh Dadhich | Nariai metric is the first example of the singularity free model | LaTeX, 3 pages | null | null | IUCAA-29/2001 | gr-qc astro-ph hep-th | null | This is just to point out that the Nariai metric is the first example of the
singularity free expanding perfect fluid cosmological model satisfying the weak
energy condition, $\rho>0, \rho+p=0$. It is a conformally non-flat Einstein
space.
| [
{
"created": "Thu, 7 Jun 2001 05:19:14 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Dadhich",
"Naresh",
""
]
] | This is just to point out that the Nariai metric is the first example of the singularity free expanding perfect fluid cosmological model satisfying the weak energy condition, $\rho>0, \rho+p=0$. It is a conformally non-flat Einstein space. |
1910.01699 | Rhiannon Cuttell | Rhiannon Cuttell | Deformed general relativity | Ph.D. thesis, King's College London. Submission date: Nov 2018. Award
date: Apr 2019. EThOS ID: uk.bl.ethos.784497. 128 pages, 10 figures. Text
overlap with arxiv:1409.1902, arxiv:1806.06791, arXiv:1812.07530, and
arxiv:1901.07383 | null | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this thesis, I investigate how to construct a self-consistent model of
deformed general relativity using canonical methods and metric variables. The
specific deformation of general covariance is predicted by some studies into
loop quantum cosmology. I firstly find the minimally-deformed model for a
scalar-tensor t... | [
{
"created": "Thu, 3 Oct 2019 19:35:20 GMT",
"version": "v1"
}
] | 2019-10-07 | [
[
"Cuttell",
"Rhiannon",
""
]
] | In this thesis, I investigate how to construct a self-consistent model of deformed general relativity using canonical methods and metric variables. The specific deformation of general covariance is predicted by some studies into loop quantum cosmology. I firstly find the minimally-deformed model for a scalar-tensor the... |
0811.4570 | Roberto Giambo' | Roberto Giamb\`o | Gravitational collapse of homogeneous perfect fluid in HOG theories | LaTeX2e, 13 pages, 10 figures, to appear on J. Math. Phys | J. Math. Phys. 50:012501,2009 | 10.1063/1.3032755 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | This paper investigates the evolution of collapsing FRW models with a scalar
field having the potential which arises in the conformal frame of high order
gravity theories, coupled to matter described by a perfect fluid with energy
density $\rho$ and pressure $p$, obeying a barotropic equation of state. The
solutions ... | [
{
"created": "Thu, 27 Nov 2008 15:50:06 GMT",
"version": "v1"
}
] | 2010-03-24 | [
[
"Giambò",
"Roberto",
""
]
] | This paper investigates the evolution of collapsing FRW models with a scalar field having the potential which arises in the conformal frame of high order gravity theories, coupled to matter described by a perfect fluid with energy density $\rho$ and pressure $p$, obeying a barotropic equation of state. The solutions ar... |
gr-qc/9404058 | null | Bj{\o}rn Jensen | Aspects of the Thermo-Dynamics of a Black Hole with a Topological Defect | 13, Oslo-TP-5-94, misprints corrected, to appear in Phys.Lett.B | Phys.Lett.B334:309-314,1994 | 10.1016/0370-2693(94)90694-7 | null | gr-qc | null | Aspects of the thermo-dynamics of a black hole which is either pierced by a
cosmic gauge string or contains a global monopole are investigated. We also
make some comments on the physical significance of the fact that the
gravitational mass carried by a global monopole is negative. We note in
particular that the negat... | [
{
"created": "Thu, 28 Apr 1994 16:14:38 GMT",
"version": "v1"
},
{
"created": "Tue, 21 Jun 1994 13:43:06 GMT",
"version": "v2"
}
] | 2010-11-01 | [
[
"Jensen",
"Bjørn",
""
]
] | Aspects of the thermo-dynamics of a black hole which is either pierced by a cosmic gauge string or contains a global monopole are investigated. We also make some comments on the physical significance of the fact that the gravitational mass carried by a global monopole is negative. We note in particular that the negativ... |
gr-qc/9501035 | Ralf Hecht | Ralf. D Hecht | Mass and Spin of Poincare Gauge Theory | 16 pages, plain-tex; to be published in Gen. Rel. Grav | Gen.Rel.Grav. 27 (1995) 537-554 | 10.1007/BF02105078 | null | gr-qc | null | We discuss two expressions for the conserved quantities (energy momentum and
angular momentum) of the Poincar\'e Gauge Theory. We show, that the variations
of the Hamiltonians, of which the expressions are the respective boundary
terms, are well defined, if we choose an appropriate phase space for asymptotic
flat gra... | [
{
"created": "Thu, 26 Jan 1995 17:55:09 GMT",
"version": "v1"
}
] | 2009-10-28 | [
[
"Hecht",
"Ralf. D",
""
]
] | We discuss two expressions for the conserved quantities (energy momentum and angular momentum) of the Poincar\'e Gauge Theory. We show, that the variations of the Hamiltonians, of which the expressions are the respective boundary terms, are well defined, if we choose an appropriate phase space for asymptotic flat gravi... |
1910.12660 | Maria Churilova | M. S. Churilova and Z. Stuchlik | Quasinormal modes of black holes in 5D Gauss-Bonnet gravity combined
with non-linear electrodynamics | 10 pages, 9 figures, revtex4-1 | Annals of Physics 418 (2020) 168181 | 10.1016/j.aop.2020.168181 | null | gr-qc astro-ph.HE hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Quasinormal modes of black holes were previously calculated in a non-linear
electrodynamics and in the Gauss-Bonnet gravity theory. Here we take into
consideration both of the above factors and find quasinormal modes of a
(massive) scalar field in the background of a black hole in the
five-dimensional Einstein-Gauss-... | [
{
"created": "Mon, 28 Oct 2019 13:24:59 GMT",
"version": "v1"
},
{
"created": "Mon, 23 Dec 2019 09:33:47 GMT",
"version": "v2"
},
{
"created": "Fri, 1 May 2020 12:51:41 GMT",
"version": "v3"
}
] | 2020-05-04 | [
[
"Churilova",
"M. S.",
""
],
[
"Stuchlik",
"Z.",
""
]
] | Quasinormal modes of black holes were previously calculated in a non-linear electrodynamics and in the Gauss-Bonnet gravity theory. Here we take into consideration both of the above factors and find quasinormal modes of a (massive) scalar field in the background of a black hole in the five-dimensional Einstein-Gauss-Bo... |
gr-qc/9304002 | null | Nguyen Hong Chuong, and Nguyen Van Hoang | Bianchi Cosmological Models in the Minimum Quadratic Poincare Gauge
Theory of Gravity | REVTEX, 17 pages, Syracuse University preprint SU-GP-93/3-4 | null | null | null | gr-qc astro-ph | null | Within the framework of the minimum quadratic Poincare gauge theory of
gravity in the Riemann-Cartan spacetime the dynamics of homogeneous anisotropic
Bianchi types I-IX spinning-fluid cosmological models is investigated. A basic
equation set for these models is obtained and analyzed. In particular, exact
solutions f... | [
{
"created": "Thu, 1 Apr 1993 19:14:00 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Chuong",
"Nguyen Hong",
""
],
[
"Van Hoang",
"Nguyen",
""
]
] | Within the framework of the minimum quadratic Poincare gauge theory of gravity in the Riemann-Cartan spacetime the dynamics of homogeneous anisotropic Bianchi types I-IX spinning-fluid cosmological models is investigated. A basic equation set for these models is obtained and analyzed. In particular, exact solutions for... |
gr-qc/9412025 | Takahiro Tanaka | Misao Sasaki, Takahiro Tanaka and Kazuhiro Yamamoto | Euclidian Vacuum Mode Functions for a Scalar Field on Open De Sitter
Spacetime | 18 pages, revtex file, 3 uuencoded compressed postscript figures
appended at the end | Phys.Rev.D51:2979-2995,1995 | 10.1103/PhysRevD.51.2979 | KUNS 1308 | gr-qc | null | Motivated by recent studies of the one-bubble inflationary universe scenario
that predicts a low density, negative curvature universe, we investigate the
Euclidean vacuum mode functions of a scalar field in a spatially open chart of
de Sitter space which is foliated by hyperbolic time slices. When we consider
the pos... | [
{
"created": "Thu, 8 Dec 1994 15:36:29 GMT",
"version": "v1"
}
] | 2009-10-09 | [
[
"Sasaki",
"Misao",
""
],
[
"Tanaka",
"Takahiro",
""
],
[
"Yamamoto",
"Kazuhiro",
""
]
] | Motivated by recent studies of the one-bubble inflationary universe scenario that predicts a low density, negative curvature universe, we investigate the Euclidean vacuum mode functions of a scalar field in a spatially open chart of de Sitter space which is foliated by hyperbolic time slices. When we consider the possi... |
0803.0905 | Woei Chet Lim | A. A. Coley, W. C. Lim, G. Leon | Spherically symmetric cosmology: resource paper | 14 pages | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We use the 1+3 frame formalism to write down the evolution equations for
spherically symmetric models as a well-posed system of first order PDEs in two
variables, suitable for numerical and qualitative analysis.
| [
{
"created": "Thu, 6 Mar 2008 16:39:49 GMT",
"version": "v1"
}
] | 2008-03-07 | [
[
"Coley",
"A. A.",
""
],
[
"Lim",
"W. C.",
""
],
[
"Leon",
"G.",
""
]
] | We use the 1+3 frame formalism to write down the evolution equations for spherically symmetric models as a well-posed system of first order PDEs in two variables, suitable for numerical and qualitative analysis. |
2009.01932 | Jesus Buitrago | J. Buitrago | Unified Picture of Electromagnetic and Gravitational Forces in
Two-Spinor Language | null | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The well known Geodesic Equation of General Relativity is newly formulated in
Weyl two-spinor language in a convenient way susceptible of being combined with
a set of two-spinor equations, equivalent to the Lorentz Force of
Electrodynamics, obtained in previous studies. General spinor equations of
motion for a test c... | [
{
"created": "Thu, 3 Sep 2020 21:25:31 GMT",
"version": "v1"
}
] | 2020-09-07 | [
[
"Buitrago",
"J.",
""
]
] | The well known Geodesic Equation of General Relativity is newly formulated in Weyl two-spinor language in a convenient way susceptible of being combined with a set of two-spinor equations, equivalent to the Lorentz Force of Electrodynamics, obtained in previous studies. General spinor equations of motion for a test cha... |
gr-qc/9701015 | Serge Massar | S. Massar and R. Parentani | Gravitational Instanton for Black Hole Radiation | 10 pages, latex | Phys.Rev.Lett. 78 (1997) 3810-3813 | 10.1103/PhysRevLett.78.3810 | TAUP2403-97 | gr-qc | null | Hawking radiation is derived from the existence of a euclidean instanton
which lives in the euclidean black hole geometry. Upon taking into account the
gravitational field of the instanton itself, its action is exactly equal to one
quarter the change in the horizon area. This result also applies to the
Schwinger proc... | [
{
"created": "Fri, 10 Jan 1997 08:01:22 GMT",
"version": "v1"
}
] | 2009-10-30 | [
[
"Massar",
"S.",
""
],
[
"Parentani",
"R.",
""
]
] | Hawking radiation is derived from the existence of a euclidean instanton which lives in the euclidean black hole geometry. Upon taking into account the gravitational field of the instanton itself, its action is exactly equal to one quarter the change in the horizon area. This result also applies to the Schwinger proces... |
1208.0168 | Stephen Casey Mr | Stephen Casey | Optical 2-metrics of Schwarzschild-Tangherlini Spacetimes and the
Bohlin-Arnold Duality | 10 pages | null | 10.1088/0264-9381/29/23/237001 | DAMTP-2012-55 | gr-qc math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider the projection of null geodesics of the Schwarzschild-Tangherlini
metric in n+1 dimensions to the space of orbits of the static Killing vector
where the motion of a given light ray is seen to lie in a plane. The projected
curves coincide with the unparametrised geodesics of optical 2-metrics and can
be eq... | [
{
"created": "Wed, 1 Aug 2012 10:39:19 GMT",
"version": "v1"
}
] | 2015-06-11 | [
[
"Casey",
"Stephen",
""
]
] | We consider the projection of null geodesics of the Schwarzschild-Tangherlini metric in n+1 dimensions to the space of orbits of the static Killing vector where the motion of a given light ray is seen to lie in a plane. The projected curves coincide with the unparametrised geodesics of optical 2-metrics and can be equa... |
1003.0239 | Bruno Coutinho Mundim | Bruno C. Mundim | A Numerical Study of Boson Star Binaries | 184 pages, 47 figures, PhD thesis (University of British Columbia) | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | This thesis describes a numerical study of binary boson stars within the
context of an approximation to general relativity. The approximation we adopt
places certain restrictions on the dynamical variables of general relativity
(conformal flatness of the 3-metric), and on the time-slicing of the spacetime
(maximal sl... | [
{
"created": "Mon, 1 Mar 2010 03:02:26 GMT",
"version": "v1"
}
] | 2010-03-02 | [
[
"Mundim",
"Bruno C.",
""
]
] | This thesis describes a numerical study of binary boson stars within the context of an approximation to general relativity. The approximation we adopt places certain restrictions on the dynamical variables of general relativity (conformal flatness of the 3-metric), and on the time-slicing of the spacetime (maximal slic... |
2202.05092 | Rui Niu | Rui Niu, Tao Zhu, Wen Zhao | Testing Lorentz Invariance of Gravity in the Standard Model Extension
with GWTC-3 | 29 pages, 6 figures | null | 10.1088/1475-7516/2022/12/011 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Successful detection of gravitational waves has presented a new avenue to
explore the nature of gravity. With the cumulative catalog of detected events,
we can perform tests on General Relativity from various aspects with increasing
precision. In this work, we focus on Lorentz symmetry during propagation of
gravitati... | [
{
"created": "Thu, 10 Feb 2022 15:30:03 GMT",
"version": "v1"
},
{
"created": "Mon, 6 Mar 2023 15:10:20 GMT",
"version": "v2"
}
] | 2023-03-07 | [
[
"Niu",
"Rui",
""
],
[
"Zhu",
"Tao",
""
],
[
"Zhao",
"Wen",
""
]
] | Successful detection of gravitational waves has presented a new avenue to explore the nature of gravity. With the cumulative catalog of detected events, we can perform tests on General Relativity from various aspects with increasing precision. In this work, we focus on Lorentz symmetry during propagation of gravitation... |
gr-qc/0409007 | Serguei Krasnikov | S. Krasnikov | Counter example to a quantum inequality | Sec. II is completely rewritten: the gulf is discussed between the
proven QIs and those used in ruling out exotic spacetimes | Grav.Cosmol. 46 (2006) 195 | null | null | gr-qc | null | A `quantum inequality' (a conjectured relation between the energy density of
a free quantum field and the time during which this density is observed) has
recently been used to rule out some of the macroscopic wormholes and warp
drives. I discuss the possibility of generalizing that result to other similar
spacetimes ... | [
{
"created": "Wed, 1 Sep 2004 16:27:59 GMT",
"version": "v1"
},
{
"created": "Tue, 12 Oct 2004 11:22:58 GMT",
"version": "v2"
},
{
"created": "Wed, 25 May 2005 20:35:51 GMT",
"version": "v3"
}
] | 2007-05-23 | [
[
"Krasnikov",
"S.",
""
]
] | A `quantum inequality' (a conjectured relation between the energy density of a free quantum field and the time during which this density is observed) has recently been used to rule out some of the macroscopic wormholes and warp drives. I discuss the possibility of generalizing that result to other similar spacetimes an... |
gr-qc/0108074 | Jose Antonio Belinchon | J. A. Belinchon, T. Harko, M. K. Mak | Renormalization Group Approach to Causal Viscous Cosmological Models | 19 pages. RevTeX4. Revised version. Accepted in Classical and Quantum
Gravity | Class.Quant.Grav.19:3003-3015,2002 | 10.1088/0264-9381/19/11/316 | null | gr-qc | null | The renormalization group method is applied to the study of homogeneous and
flat Friedmann-Robertson-Walker type Universes, filled with a causal bulk
viscous cosmological fluid. The starting point of the study is the
consideration of the scaling properties of the gravitational field equations,
of the causal evolution... | [
{
"created": "Wed, 29 Aug 2001 09:26:12 GMT",
"version": "v1"
},
{
"created": "Wed, 24 Apr 2002 05:28:28 GMT",
"version": "v2"
}
] | 2009-09-25 | [
[
"Belinchon",
"J. A.",
""
],
[
"Harko",
"T.",
""
],
[
"Mak",
"M. K.",
""
]
] | The renormalization group method is applied to the study of homogeneous and flat Friedmann-Robertson-Walker type Universes, filled with a causal bulk viscous cosmological fluid. The starting point of the study is the consideration of the scaling properties of the gravitational field equations, of the causal evolution e... |
0803.2899 | Maximiliano Ujevic | Jose D. Polanco, Patricio S. Letelier and Maximiliano Ujevic | Static charged fluid around a massive magnetic dipole | 7 pages, 1 figure, revtex. A discussion on frame dragging added.
Accepted in PRD | Phys.Rev.D78:024026,2008 | 10.1103/PhysRevD.78.024026 | null | gr-qc astro-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | An analytical solution of Einstein-Maxwell equations with a static fluid as a
source is presented. The spacetime is represented by the axially symmetric Weyl
metric and the energy-momentum tensor describes a coupling of a fluid with an
electromagnetic field. When appropriate limits are performed we recover the
well-k... | [
{
"created": "Wed, 19 Mar 2008 21:35:13 GMT",
"version": "v1"
},
{
"created": "Tue, 20 May 2008 02:08:27 GMT",
"version": "v2"
}
] | 2008-11-26 | [
[
"Polanco",
"Jose D.",
""
],
[
"Letelier",
"Patricio S.",
""
],
[
"Ujevic",
"Maximiliano",
""
]
] | An analytical solution of Einstein-Maxwell equations with a static fluid as a source is presented. The spacetime is represented by the axially symmetric Weyl metric and the energy-momentum tensor describes a coupling of a fluid with an electromagnetic field. When appropriate limits are performed we recover the well-kno... |
2304.10015 | Xi-Jing Wang | Xi-Jing Wang, Xiao-Mei Kuang, Yuan Meng, Bin Wang, Jian-Pin Wu | Rings and images of Horndeski hairy black hole illuminated by various
thin accretions | 21 pages, 13 figures, matching the version published in PRD | Phys. Rev. D 107, 124052 (2023) | 10.1103/PhysRevD.107.124052 | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | We analyze the light rays around a static hairy black hole in Horndeski
gravity with the use of ray-tracing procedure. We find that a stronger
Horndeski hairy parameter corresponds to larger photon sphere as well as
critical impact parameter, and wider ranges of photon ring and lensed ring
emissions. These influences... | [
{
"created": "Wed, 19 Apr 2023 23:57:49 GMT",
"version": "v1"
},
{
"created": "Mon, 19 Jun 2023 09:04:04 GMT",
"version": "v2"
},
{
"created": "Thu, 29 Jun 2023 13:22:57 GMT",
"version": "v3"
}
] | 2023-06-30 | [
[
"Wang",
"Xi-Jing",
""
],
[
"Kuang",
"Xiao-Mei",
""
],
[
"Meng",
"Yuan",
""
],
[
"Wang",
"Bin",
""
],
[
"Wu",
"Jian-Pin",
""
]
] | We analyze the light rays around a static hairy black hole in Horndeski gravity with the use of ray-tracing procedure. We find that a stronger Horndeski hairy parameter corresponds to larger photon sphere as well as critical impact parameter, and wider ranges of photon ring and lensed ring emissions. These influences c... |
2405.13552 | Alexey Dubinsky | Alexey Dubinsky | Quantum gravitational corrections to the Schwarzschild spacetime and
quasinormal frequencies | arXiv admin note: text overlap with arXiv:2405.06390 | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Quantum gravitational corrections to the entropy of the Schwarzschild black
hole, derived using the Wald entropy formula within an effective field theory
framework, were presented in [X. Calmet, F. Kuipers Phys.Rev.D 104 (2021) 6,
066012]. These corrections result in a Schwarzschild spacetime that is deformed
by the ... | [
{
"created": "Wed, 22 May 2024 11:40:05 GMT",
"version": "v1"
}
] | 2024-05-24 | [
[
"Dubinsky",
"Alexey",
""
]
] | Quantum gravitational corrections to the entropy of the Schwarzschild black hole, derived using the Wald entropy formula within an effective field theory framework, were presented in [X. Calmet, F. Kuipers Phys.Rev.D 104 (2021) 6, 066012]. These corrections result in a Schwarzschild spacetime that is deformed by the qu... |
1611.01614 | Deng Wang | Deng Wang | Wormholes in a viscous universe | 14 pages, 3 figs, accepted in Physics of the Dark Universe | Phys.Dark Univ. 35 (2022) 100944 | 10.1016/j.dark.2021.100944 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the static and spherically symmetric wormhole spacetime
configurations at present time in a viscous universe. Considering three classes
of viscous models, i.e., bulk viscosity as a function of Hubble constant $H_0$,
present cosmic temperature $T_0$ and dark energy density $\rho_0$,
respectively, we obtain se... | [
{
"created": "Sat, 5 Nov 2016 08:29:59 GMT",
"version": "v1"
},
{
"created": "Thu, 23 Dec 2021 10:45:59 GMT",
"version": "v2"
},
{
"created": "Fri, 7 Jan 2022 17:16:54 GMT",
"version": "v3"
}
] | 2022-01-10 | [
[
"Wang",
"Deng",
""
]
] | We study the static and spherically symmetric wormhole spacetime configurations at present time in a viscous universe. Considering three classes of viscous models, i.e., bulk viscosity as a function of Hubble constant $H_0$, present cosmic temperature $T_0$ and dark energy density $\rho_0$, respectively, we obtain seve... |
2311.00348 | Sung-Won Kim | Sung-Won Kim | Wormhole Effective Mass and Gravitational Waves by Binary Systems
Containing Wormhole | 9 pages, 7 figures | null | null | null | gr-qc astro-ph.HE | http://creativecommons.org/licenses/by-nc-sa/4.0/ | We considered the generation of gravitational waves by the binary system
associated with a wormhole. In the Newtonian limit, the gravitational potential
of a wormhole requires the effective mass of the wormhole taking into account
radial tension effects. This definition allows us to derive gravitational wave
producti... | [
{
"created": "Wed, 1 Nov 2023 07:43:49 GMT",
"version": "v1"
},
{
"created": "Tue, 7 Nov 2023 07:11:18 GMT",
"version": "v2"
}
] | 2023-11-08 | [
[
"Kim",
"Sung-Won",
""
]
] | We considered the generation of gravitational waves by the binary system associated with a wormhole. In the Newtonian limit, the gravitational potential of a wormhole requires the effective mass of the wormhole taking into account radial tension effects. This definition allows us to derive gravitational wave production... |
2103.05039 | Ernesto Contreras | A. Ramos, C. Arias, E. Fuenmayor and E. Contreras | Class I polytropes for anisotropic matter | null | Eur. Phys. J. C 81, 203 (2021) | 10.1140/epjc/s10052-021-09002-1 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this work we study class I interior solutions supported by anisotropic
polytropes. The generalized Lane--Emden equation compatible with the embedding
condition is obtained and solved for a different set of parameters in both the
isothermal and non--isothermal regimes. For completeness, the Tolman mass is
computed ... | [
{
"created": "Mon, 8 Mar 2021 19:50:51 GMT",
"version": "v1"
}
] | 2021-03-10 | [
[
"Ramos",
"A.",
""
],
[
"Arias",
"C.",
""
],
[
"Fuenmayor",
"E.",
""
],
[
"Contreras",
"E.",
""
]
] | In this work we study class I interior solutions supported by anisotropic polytropes. The generalized Lane--Emden equation compatible with the embedding condition is obtained and solved for a different set of parameters in both the isothermal and non--isothermal regimes. For completeness, the Tolman mass is computed an... |
1607.03839 | David Delphenich | D. H. Delphenich | On the local integrability of almost-product structures defined by
space-time metrics | 30 pages, 1 figure, 1 table | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The splitting of the tangent bundle of space-time into temporal and spatial
sub-bundles defines an almost-product structure. In particular, any space-time
metric can be locally expressed in time-orthogonal form, in such a way that
whether or not that almost-product structure is locally generated by a
coordinate chart... | [
{
"created": "Wed, 13 Jul 2016 17:54:00 GMT",
"version": "v1"
}
] | 2016-07-14 | [
[
"Delphenich",
"D. H.",
""
]
] | The splitting of the tangent bundle of space-time into temporal and spatial sub-bundles defines an almost-product structure. In particular, any space-time metric can be locally expressed in time-orthogonal form, in such a way that whether or not that almost-product structure is locally generated by a coordinate chart i... |
gr-qc/9901049 | Boisseau | B. Boisseau | Dynamics of a relativistic Rankine vortex for a two-constituent
superfluid in a weak perturbation of cylindrical symmetry | latex, 16 pages, 0 figure | null | null | null | gr-qc | null | From a recent study of a stationary cylindrical solution for a relativistic
two-constituent superfluid at low temperature limit, we propose to specify this
solution under the form of a relativistic generalisation of a Rankine vortex
(Potential vortex whose the core has a solid body rotation).Then we establish
the dyn... | [
{
"created": "Mon, 18 Jan 1999 14:34:21 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Boisseau",
"B.",
""
]
] | From a recent study of a stationary cylindrical solution for a relativistic two-constituent superfluid at low temperature limit, we propose to specify this solution under the form of a relativistic generalisation of a Rankine vortex (Potential vortex whose the core has a solid body rotation).Then we establish the dynam... |
1903.08921 | Juan Mena-Fern\'andez | Juan Mena-Fern\'andez and Luis Manuel Gonz\'alez-Romero | Piecewise polytropic meshing and refinement method for the
reconstruction of the neutron star equation of state using tidal
deformabilities and constraints in the piecewise polytropic parameters given
by the GW170817 event | 12 pages, 8 figures. arXiv admin note: substantial text overlap with
arXiv:1901.10851 | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper we present a new approach to the inverse problem for
relativistic stars using the piecewise polytropic parametrization of the
equation of state. The algorithm is a piecewise polytropic meshing and
refinement method that reconstructs the neutron star equation of state from
experimental data of the mass a... | [
{
"created": "Thu, 21 Mar 2019 10:55:47 GMT",
"version": "v1"
}
] | 2019-03-22 | [
[
"Mena-Fernández",
"Juan",
""
],
[
"González-Romero",
"Luis Manuel",
""
]
] | In this paper we present a new approach to the inverse problem for relativistic stars using the piecewise polytropic parametrization of the equation of state. The algorithm is a piecewise polytropic meshing and refinement method that reconstructs the neutron star equation of state from experimental data of the mass and... |
gr-qc/0103071 | Valeri Frolov | V. Frolov and D. Singh | Quantum Radiation of Uniformly Accelerated Spherical Mirrors | 17 pages, no figures, new references added | Class.Quant.Grav.18:3025-3038,2001 | 10.1088/0264-9381/18/15/316 | null | gr-qc | null | We study quantum radiation generated by a uniformly accelerated motion of
small spherical mirrors. To obtain Green's function for a scalar massless field
we use Wick's rotation. In the Euclidean domain the problem is reduced to
finding an electric potential in 4D flat space in the presence of a metallic
toroidal boun... | [
{
"created": "Tue, 20 Mar 2001 08:47:35 GMT",
"version": "v1"
},
{
"created": "Thu, 7 Jun 2001 20:39:56 GMT",
"version": "v2"
}
] | 2014-11-17 | [
[
"Frolov",
"V.",
""
],
[
"Singh",
"D.",
""
]
] | We study quantum radiation generated by a uniformly accelerated motion of small spherical mirrors. To obtain Green's function for a scalar massless field we use Wick's rotation. In the Euclidean domain the problem is reduced to finding an electric potential in 4D flat space in the presence of a metallic toroidal bounda... |
gr-qc/0703091 | Jungjai Lee | Jungjai Lee and Hyeong-Chan Kim | Black string and velocity frame dragging | 8 pages, no figure, some corrections | Mod.Phys.Lett.A23:305-313,2008 | 10.1142/S0217732308026418 | null | gr-qc hep-th | null | We investigate velocity frame dragging with the boosted Schwarzschild black
string solution and the boosted Kaluza-Klein bubble solution, in which a
translational symmetry along the boosted $z$-coordinate is implemented. The
velocity frame dragging effect can be nullified by the motion of an observer
using the boost ... | [
{
"created": "Sat, 17 Mar 2007 15:22:02 GMT",
"version": "v1"
},
{
"created": "Thu, 22 Mar 2007 08:06:08 GMT",
"version": "v2"
},
{
"created": "Wed, 25 Apr 2007 03:54:23 GMT",
"version": "v3"
},
{
"created": "Sat, 15 Sep 2007 12:59:16 GMT",
"version": "v4"
},
{
"c... | 2008-11-26 | [
[
"Lee",
"Jungjai",
""
],
[
"Kim",
"Hyeong-Chan",
""
]
] | We investigate velocity frame dragging with the boosted Schwarzschild black string solution and the boosted Kaluza-Klein bubble solution, in which a translational symmetry along the boosted $z$-coordinate is implemented. The velocity frame dragging effect can be nullified by the motion of an observer using the boost sy... |
2210.00007 | Oscar Castillo Felisola Dr. | Oscar Castillo-Felisola and Dominic T. Price and Mattia Scomparin | Cadabra and Python algorithms in General Relativity and Cosmology II:
Gravitational Waves | 32 pages, 3 figures, cadabra code blocks. For associated files, see
https://gitlab.com/cdbgr/cadabra-gravity-II | null | 10.1016/j.cpc.2023.108748 | null | gr-qc cs.MS physics.class-ph physics.comp-ph | http://creativecommons.org/licenses/by/4.0/ | Computer Algebra Systems (CASs) like Cadabra Software play a prominent role
in a wide range of research activities in physics and related fields. We show
how Cadabra language is easily implemented in the well established Python
programming framework, gaining excellent flexibility and customization to
address the issu... | [
{
"created": "Fri, 30 Sep 2022 16:58:21 GMT",
"version": "v1"
}
] | 2023-05-17 | [
[
"Castillo-Felisola",
"Oscar",
""
],
[
"Price",
"Dominic T.",
""
],
[
"Scomparin",
"Mattia",
""
]
] | Computer Algebra Systems (CASs) like Cadabra Software play a prominent role in a wide range of research activities in physics and related fields. We show how Cadabra language is easily implemented in the well established Python programming framework, gaining excellent flexibility and customization to address the issue ... |
1504.03636 | Yuri Bonder | Yuri Bonder | Lorentz violation in the gravity sector: The t puzzle | null | Phys. Rev. D 91, 125002 (2015) | 10.1103/PhysRevD.91.125002 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Lorentz violation is a candidate quantum-gravity signal, and the
Standard-Model Extension (SME) is a widely used parametrization of such a
violation. In the gravitational SME sector, there is an elusive coefficient for
which no effects have been found. This is known as the $t$ puzzle and, to date,
it has no compellin... | [
{
"created": "Tue, 14 Apr 2015 17:43:30 GMT",
"version": "v1"
},
{
"created": "Mon, 25 May 2015 23:17:29 GMT",
"version": "v2"
}
] | 2015-06-03 | [
[
"Bonder",
"Yuri",
""
]
] | Lorentz violation is a candidate quantum-gravity signal, and the Standard-Model Extension (SME) is a widely used parametrization of such a violation. In the gravitational SME sector, there is an elusive coefficient for which no effects have been found. This is known as the $t$ puzzle and, to date, it has no compelling ... |
1605.09121 | Jie-Xiong Mo | Gu-Qiang Li, Jie-Xiong Mo | Phase transition and thermodynamic geometry of $f(R)$ AdS black holes in
the grand canonical ensemble | null | Phys. Rev. D 93, 124021 (2016) | 10.1103/PhysRevD.93.124021 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The phase transition of four-dimensional charged AdS black hole solution in
the $R+f(R)$ gravity with constant curvature is investigated in the grand
canonical ensemble, where we find novel characteristics quite different from
that in canonical ensemble. There exists no critical point for $T-S$ curve
while in former ... | [
{
"created": "Mon, 30 May 2016 07:13:10 GMT",
"version": "v1"
},
{
"created": "Sat, 11 Jun 2016 23:55:49 GMT",
"version": "v2"
}
] | 2016-06-22 | [
[
"Li",
"Gu-Qiang",
""
],
[
"Mo",
"Jie-Xiong",
""
]
] | The phase transition of four-dimensional charged AdS black hole solution in the $R+f(R)$ gravity with constant curvature is investigated in the grand canonical ensemble, where we find novel characteristics quite different from that in canonical ensemble. There exists no critical point for $T-S$ curve while in former re... |
2211.02948 | Umananda Dev Goswami | Gayatri Mohan and Umananda Dev Goswami | Galactic rotation curves of spiral galaxies and dark matter in f(R,T)
gravity theory | 14 pages, 3 figures; published version | null | 10.1142/S0219887824500828 | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | Galactic rotation curve is a powerful indicator of the state of the
gravitational field within a galaxy. The flatness of these curves indicates the
presence of dark matter in galaxies and their clusters. In this paper, we focus
on the possibility of explaining the rotation curves of spiral galaxies without
postulatin... | [
{
"created": "Sat, 5 Nov 2022 17:25:39 GMT",
"version": "v1"
},
{
"created": "Sat, 25 Nov 2023 10:16:39 GMT",
"version": "v2"
}
] | 2023-11-28 | [
[
"Mohan",
"Gayatri",
""
],
[
"Goswami",
"Umananda Dev",
""
]
] | Galactic rotation curve is a powerful indicator of the state of the gravitational field within a galaxy. The flatness of these curves indicates the presence of dark matter in galaxies and their clusters. In this paper, we focus on the possibility of explaining the rotation curves of spiral galaxies without postulating ... |
1709.02818 | Sante Carloni Dr | Sante Carloni, Daniele Vernieri | The covariant Tolman-Oppenheimer-Volkoff equations I: The isotropic case | 12 pages, 2 figures | Phys. Rev. D 97, 124056 (2018) | 10.1103/PhysRevD.97.124056 | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We construct a covariant version of the Tolman-Oppenheimer-Volkoff equations
in the case of isotropic sources. The new equations make evident the
mathematical problems in the determination of interior solutions of
relativistic stellar objects. Using a reconstruction algorithm we find two
physically interesting genera... | [
{
"created": "Fri, 8 Sep 2017 18:01:02 GMT",
"version": "v1"
}
] | 2018-06-27 | [
[
"Carloni",
"Sante",
""
],
[
"Vernieri",
"Daniele",
""
]
] | We construct a covariant version of the Tolman-Oppenheimer-Volkoff equations in the case of isotropic sources. The new equations make evident the mathematical problems in the determination of interior solutions of relativistic stellar objects. Using a reconstruction algorithm we find two physically interesting generali... |
1905.00971 | Geoffrey Comp\`ere | Geoffrey Comp\`ere, Adrien Fiorucci and Romain Ruzziconi | The $\Lambda$-BMS$_4$ group of dS$_4$ and new boundary conditions for
AdS$_4$ | 42 pages, 1 figure, attached Mathematica notebook, corrigendum
version | null | 10.1088/1361-6382/ab3d4b | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Using the dictionary between Bondi and Fefferman-Graham gauges, we identify
the analogues of the Bondi news, Bondi mass and Bondi angular momentum aspects
at the boundary of generic asymptotically locally (A)dS$_4$ spacetimes. We
introduce the $\Lambda$-BMS$_4$ group as the residual symmetry group of the
metric in Bo... | [
{
"created": "Thu, 2 May 2019 21:33:37 GMT",
"version": "v1"
},
{
"created": "Wed, 4 Sep 2019 12:15:09 GMT",
"version": "v2"
},
{
"created": "Fri, 10 Feb 2023 13:20:51 GMT",
"version": "v3"
}
] | 2023-02-13 | [
[
"Compère",
"Geoffrey",
""
],
[
"Fiorucci",
"Adrien",
""
],
[
"Ruzziconi",
"Romain",
""
]
] | Using the dictionary between Bondi and Fefferman-Graham gauges, we identify the analogues of the Bondi news, Bondi mass and Bondi angular momentum aspects at the boundary of generic asymptotically locally (A)dS$_4$ spacetimes. We introduce the $\Lambda$-BMS$_4$ group as the residual symmetry group of the metric in Bond... |
2211.10723 | Gerard Hooft 't | Gerard t Hooft | How studying black hole theory may help us to quantise gravity | 14 pages, 3 figures, presented at the Conference on "Eternity between
and Space and Time", Padova, May 19-21, 2022 | null | null | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | Black holes are more than just odd-looking curiosities in gravity theory.
They uniquely intertwine the basic principles of General Relativity with those
of Quantum Theory. Just by demanding that they nevertheless obey acceptable
laws of dynamics, just like stars and planets, we hit upon strange structures
that must p... | [
{
"created": "Sat, 19 Nov 2022 15:37:16 GMT",
"version": "v1"
},
{
"created": "Thu, 24 Nov 2022 21:21:40 GMT",
"version": "v2"
}
] | 2022-11-28 | [
[
"Hooft",
"Gerard t",
""
]
] | Black holes are more than just odd-looking curiosities in gravity theory. They uniquely intertwine the basic principles of General Relativity with those of Quantum Theory. Just by demanding that they nevertheless obey acceptable laws of dynamics, just like stars and planets, we hit upon strange structures that must pla... |
1410.5983 | Hugo Ferreira | Hugo R. C. Ferreira, Jorma Louko | Renormalized vacuum polarization on rotating warped AdS3 black holes | 25 pages, 2 figures. v2: minor typos corrections, published version | Phys.Rev.D91 (2015), 024038 | 10.1103/PhysRevD.91.024038 | null | gr-qc hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We compute the renormalized vacuum polarization of a massive scalar field in
the Hartle-Hawking state on (2+1)-dimensional rotating, spacelike stretched
black hole solutions to Topologically Massive Gravity, surrounded by a
Dirichlet mirror that makes the state well defined. The Feynman propagator is
written as a mod... | [
{
"created": "Wed, 22 Oct 2014 10:38:12 GMT",
"version": "v1"
},
{
"created": "Wed, 28 Jan 2015 14:21:25 GMT",
"version": "v2"
}
] | 2015-01-29 | [
[
"Ferreira",
"Hugo R. C.",
""
],
[
"Louko",
"Jorma",
""
]
] | We compute the renormalized vacuum polarization of a massive scalar field in the Hartle-Hawking state on (2+1)-dimensional rotating, spacelike stretched black hole solutions to Topologically Massive Gravity, surrounded by a Dirichlet mirror that makes the state well defined. The Feynman propagator is written as a mode ... |
2105.12632 | Daphne O. Klemme | Vincent Moncrief (1) and Nishanth Gudapati (2) ((1) Yale University,
(2) Harvard University) | A Positive-Definite Energy Functional for the Axisymmetric Perturbations
of Kerr-Newman Black Holes | 131 pages, 0 figures | null | null | null | gr-qc | http://creativecommons.org/licenses/by-nc-nd/4.0/ | We consider the axisymmetric, linear perturbations of Kerr-Newman black
holes, allowing for arbitrarily large (but subextremal) angular momentum and
electric charge. By exploiting the famous Carter-Robinson identities, developed
previously for the proofs of (stationary) black hole uniqueness results, we
construct a p... | [
{
"created": "Wed, 26 May 2021 15:46:52 GMT",
"version": "v1"
}
] | 2021-05-27 | [
[
"Moncrief",
"Vincent",
""
],
[
"Gudapati",
"Nishanth",
""
]
] | We consider the axisymmetric, linear perturbations of Kerr-Newman black holes, allowing for arbitrarily large (but subextremal) angular momentum and electric charge. By exploiting the famous Carter-Robinson identities, developed previously for the proofs of (stationary) black hole uniqueness results, we construct a pos... |
gr-qc/9304029 | Piotr T. Chrusciel | Piotr T. Chrusciel | On completeness of orbits of Killing vector fields | 16 pages, Latex, preprint NSF-ITP-93-44 | Class.Quant.Grav.10:2091-2102,1993 | 10.1088/0264-9381/10/10/016 | null | gr-qc | null | A Theorem is proved which reduces the problem of completeness of orbits of
Killing vector fields in maximal globally hyperbolic, say vacuum, space--times
to some properties of the orbits near the Cauchy surface. In particular it is
shown that all Killing orbits are complete in maximal developements of
asymptotically ... | [
{
"created": "Wed, 21 Apr 1993 04:38:23 GMT",
"version": "v1"
}
] | 2010-04-06 | [
[
"Chrusciel",
"Piotr T.",
""
]
] | A Theorem is proved which reduces the problem of completeness of orbits of Killing vector fields in maximal globally hyperbolic, say vacuum, space--times to some properties of the orbits near the Cauchy surface. In particular it is shown that all Killing orbits are complete in maximal developements of asymptotically fl... |
2209.13829 | Alexander Grant | Alexander M. Grant and Jordan Moxon | Flux-balance laws in scalar self-force theory | 15+3 pages, 1 figure; v2: corrected typos and added appendix and
figure, "matches" published version | Phys. Rev. D 108, 104029 (2023) | 10.1103/PhysRevD.108.104029 | null | gr-qc math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The motion of a radiating point particle can be represented by a series of
geodesics whose "constants" of motion evolve slowly with time. The evolution of
these constants of motion can be determined directly from the self-force
equations of motion. In the presence of spacetime symmetries, the situation
simplifies: th... | [
{
"created": "Wed, 28 Sep 2022 04:28:55 GMT",
"version": "v1"
},
{
"created": "Tue, 14 Nov 2023 22:46:52 GMT",
"version": "v2"
}
] | 2023-11-16 | [
[
"Grant",
"Alexander M.",
""
],
[
"Moxon",
"Jordan",
""
]
] | The motion of a radiating point particle can be represented by a series of geodesics whose "constants" of motion evolve slowly with time. The evolution of these constants of motion can be determined directly from the self-force equations of motion. In the presence of spacetime symmetries, the situation simplifies: ther... |
1910.09280 | M. D. Maia | Ivan S. Ferreira, C. Frajuca, Nadja S. Magalhaes, M. D. Maia, Claudio
M. G. Sousa | The Laser Gravitational Compass | Latex, four pages, no figures | null | null | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | Using the observational properties of Einstein's gravitational field it is
shown that a minimum of four non-coplanar mass probes are necessary for the
Michelson and Morley interferometer to detect gravitational waves within the
context of General Relativity. With fewer probes, some alternative theories of
gravitation... | [
{
"created": "Mon, 21 Oct 2019 12:03:37 GMT",
"version": "v1"
}
] | 2019-10-22 | [
[
"Ferreira",
"Ivan S.",
""
],
[
"Frajuca",
"C.",
""
],
[
"Magalhaes",
"Nadja S.",
""
],
[
"Maia",
"M. D.",
""
],
[
"Sousa",
"Claudio M. G.",
""
]
] | Using the observational properties of Einstein's gravitational field it is shown that a minimum of four non-coplanar mass probes are necessary for the Michelson and Morley interferometer to detect gravitational waves within the context of General Relativity. With fewer probes, some alternative theories of gravitation c... |
gr-qc/9703016 | null | Roustam M. Zalaletdinov (Queen Mary and Westfield College, London and
Department of Theoretical Physics, Institute of Nuclear Physics, Tashkent) | Averaging Problem in General Relativity, Macroscopic Gravity and Using
Einstein's Equations in Cosmology | 16 pages, RevTeX, submitted to Phys. Rev. D | Bull.Astron.Soc.India 25 (1997) 401-416 | null | QMW-AU-96018 (March 1996) | gr-qc astro-ph | null | The averaging problem in general relativity is briefly discussed. A new
setting of the problem as that of macroscopic description of gravitation is
proposed. A covariant space-time averaging procedure is described. The
structure of the geometry of macroscopic space-time, which follows from
averaging Cartan's structur... | [
{
"created": "Thu, 6 Mar 1997 19:01:49 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Zalaletdinov",
"Roustam M.",
"",
"Queen Mary and Westfield College, London and\n Department of Theoretical Physics, Institute of Nuclear Physics, Tashkent"
]
] | The averaging problem in general relativity is briefly discussed. A new setting of the problem as that of macroscopic description of gravitation is proposed. A covariant space-time averaging procedure is described. The structure of the geometry of macroscopic space-time, which follows from averaging Cartan's structure ... |
gr-qc/0003115 | Robin W. Tucker | Simon J. Clark, Robin W. Tucker | Gauge Symmetry and Gravito-Electromagnetism | 29 pages no-figs | Class.Quant.Grav.17:4125-4158,2000 | 10.1088/0264-9381/17/19/311 | null | gr-qc astro-ph | null | A tensor description of perturbative Einsteinian gravity about an arbitrary
background spacetime is developed. By analogy with the covariant laws of
electromagnetism in spacetime, gravito-electromagnetic potentials and fields
are defined to emulate electromagnetic gauge transformations under
substitutions belonging t... | [
{
"created": "Fri, 31 Mar 2000 17:18:07 GMT",
"version": "v1"
},
{
"created": "Fri, 22 Sep 2000 15:35:58 GMT",
"version": "v2"
}
] | 2014-11-17 | [
[
"Clark",
"Simon J.",
""
],
[
"Tucker",
"Robin W.",
""
]
] | A tensor description of perturbative Einsteinian gravity about an arbitrary background spacetime is developed. By analogy with the covariant laws of electromagnetism in spacetime, gravito-electromagnetic potentials and fields are defined to emulate electromagnetic gauge transformations under substitutions belonging to ... |
1306.4400 | Alberto Diez-Tejedor | Alberto Diez-Tejedor and Alma X. Gonzalez-Morales | No-go theorem for static scalar field dark matter halos with no Noether
charges | 6 pages, no figures. The Appendix A does not appear in the printed
version | Phys. Rev. D 88, 067302 (2013) | 10.1103/PhysRevD.88.067302 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Classical scalar fields have been considered as a possible effective
description of dark matter. We show that, for any metric theory of gravity, no
static, spherically symmetric, regular, spatially localized, attractive, stable
spacetime configuration can be sourced by the coherent excitation of a scalar
field with p... | [
{
"created": "Wed, 19 Jun 2013 00:48:03 GMT",
"version": "v1"
},
{
"created": "Thu, 26 Sep 2013 13:50:16 GMT",
"version": "v2"
}
] | 2013-09-27 | [
[
"Diez-Tejedor",
"Alberto",
""
],
[
"Gonzalez-Morales",
"Alma X.",
""
]
] | Classical scalar fields have been considered as a possible effective description of dark matter. We show that, for any metric theory of gravity, no static, spherically symmetric, regular, spatially localized, attractive, stable spacetime configuration can be sourced by the coherent excitation of a scalar field with pos... |
2401.17106 | Roman Konoplya | R. A. Konoplya | Two Regimes of Asymptotic Fall-off of a Massive Scalar Field in the
Schwarzschild-de Sitter Spacetime | 12 pages, 10 figures, revtex, new material and references added, the
version accepted for publication in Phys. Rev. D | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The decay behavior of a massless scalar field in the Schwarzschild-de Sitter
spacetime is well-known to follow an exponential law at asymptotically late
times $t \rightarrow \infty$. In contrast, a massive scalar field in the
asymptotically flat Schwarzschild background exhibits a decay with oscillatory
(sinusoidal) ... | [
{
"created": "Tue, 30 Jan 2024 15:42:17 GMT",
"version": "v1"
},
{
"created": "Sun, 4 Feb 2024 15:33:09 GMT",
"version": "v2"
},
{
"created": "Wed, 7 Feb 2024 10:52:12 GMT",
"version": "v3"
},
{
"created": "Mon, 15 Apr 2024 15:02:15 GMT",
"version": "v4"
}
] | 2024-04-16 | [
[
"Konoplya",
"R. A.",
""
]
] | The decay behavior of a massless scalar field in the Schwarzschild-de Sitter spacetime is well-known to follow an exponential law at asymptotically late times $t \rightarrow \infty$. In contrast, a massive scalar field in the asymptotically flat Schwarzschild background exhibits a decay with oscillatory (sinusoidal) ta... |
2212.13561 | Alexander Ganz | Alexander Ganz, Paul Martens, Shinji Mukohyama, Ryo Namba | Bouncing Cosmology in VCDM | 15 pages, 8 figures; accepted version | null | 10.1088/1475-7516/2023/04/060 | RIKEN-iTHEMS-Report-22 | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We construct an asymmetric bouncing scenario within the VCDM model - also
known as type-II minimally modified gravity -, a modified gravity theory with
two local physical degrees of freedom. The scenario is exempt of any ghost or
gradient instability, ad-hoc matching conditions or anisotropic stress issue
(BKL instab... | [
{
"created": "Tue, 27 Dec 2022 17:30:55 GMT",
"version": "v1"
},
{
"created": "Thu, 27 Apr 2023 12:39:29 GMT",
"version": "v2"
}
] | 2023-04-28 | [
[
"Ganz",
"Alexander",
""
],
[
"Martens",
"Paul",
""
],
[
"Mukohyama",
"Shinji",
""
],
[
"Namba",
"Ryo",
""
]
] | We construct an asymmetric bouncing scenario within the VCDM model - also known as type-II minimally modified gravity -, a modified gravity theory with two local physical degrees of freedom. The scenario is exempt of any ghost or gradient instability, ad-hoc matching conditions or anisotropic stress issue (BKL instabil... |
1508.01429 | Asoke Sen Dr. | Saswati Roy and A. K. Sen | Deflection of light ray due to a charged body using Material Medium
Approach | 15 pages, 7 figures | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The gravitational deflection of light ray is an important prediction of
General Theory of Relativity. In this paper we develop analytical expression of
the deflection of light ray without any weak field approximation due to a
charged gravitational body represented by Reissner_Nordstr\"om (RN) and
Janis-Newman-Winicou... | [
{
"created": "Thu, 6 Aug 2015 15:14:31 GMT",
"version": "v1"
},
{
"created": "Fri, 8 Apr 2016 10:02:41 GMT",
"version": "v2"
},
{
"created": "Thu, 1 Jun 2017 18:18:48 GMT",
"version": "v3"
}
] | 2017-06-05 | [
[
"Roy",
"Saswati",
""
],
[
"Sen",
"A. K.",
""
]
] | The gravitational deflection of light ray is an important prediction of General Theory of Relativity. In this paper we develop analytical expression of the deflection of light ray without any weak field approximation due to a charged gravitational body represented by Reissner_Nordstr\"om (RN) and Janis-Newman-Winicour ... |
gr-qc/9712018 | Shin'ji Mukouyama | Shinji Mukohyama, Masafumi Seriu and Hideo Kodama | Thermodynamics of entanglement in Schwarzschild spacetime | 27 pages, Latex file, 7 figures; revised to clarify our choice of the
state and to add references. Accepted for publication in Physical Review D | Phys.Rev. D58 (1998) 064001 | 10.1103/PhysRevD.58.064001 | YITP-97-63 | gr-qc | null | Extending the analysis in our previous paper, we construct the entanglement
thermodynamics for a massless scalar field on the Schwarzschild spacetime.
Contrary to the flat case, the entanglement energy $E_{ent}$ turns out to be
proportional to area radius of the boundary if it is near the horizon. This
peculiar behav... | [
{
"created": "Wed, 3 Dec 1997 02:25:01 GMT",
"version": "v1"
},
{
"created": "Fri, 5 Dec 1997 07:27:20 GMT",
"version": "v2"
},
{
"created": "Mon, 8 Dec 1997 02:54:06 GMT",
"version": "v3"
},
{
"created": "Wed, 10 Dec 1997 03:52:12 GMT",
"version": "v4"
},
{
"crea... | 2009-10-30 | [
[
"Mukohyama",
"Shinji",
""
],
[
"Seriu",
"Masafumi",
""
],
[
"Kodama",
"Hideo",
""
]
] | Extending the analysis in our previous paper, we construct the entanglement thermodynamics for a massless scalar field on the Schwarzschild spacetime. Contrary to the flat case, the entanglement energy $E_{ent}$ turns out to be proportional to area radius of the boundary if it is near the horizon. This peculiar behavio... |
1802.03739 | Wen-Biao Han | Xiao-Jun Yue, Wen-Biao Han, Xian Chen | Dark matter: an efficient catalyst for intermediate-mass-ratio-inspiral
events | 17 pages, 10 figures | ApJ, 874: 34, 2019 | 10.3847/1538-4357/ab06f6 | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Gravitational waves (GWs) can be produced if a stellar compact object, such
as a black hole (BH) or neutron star, inspirals into an intermediate-massive
black hole (IMBH) of $(10^3 \sim 10^5)\,M_\odot$. Such a system may be produced
in the center of a globular cluster (GC) or a nuclear star cluster (NSC), and
is know... | [
{
"created": "Sun, 11 Feb 2018 13:48:29 GMT",
"version": "v1"
},
{
"created": "Mon, 1 Apr 2019 14:40:08 GMT",
"version": "v2"
}
] | 2019-04-02 | [
[
"Yue",
"Xiao-Jun",
""
],
[
"Han",
"Wen-Biao",
""
],
[
"Chen",
"Xian",
""
]
] | Gravitational waves (GWs) can be produced if a stellar compact object, such as a black hole (BH) or neutron star, inspirals into an intermediate-massive black hole (IMBH) of $(10^3 \sim 10^5)\,M_\odot$. Such a system may be produced in the center of a globular cluster (GC) or a nuclear star cluster (NSC), and is known ... |
1506.09164 | Jedrzej \'Swie\.zewski | Norbert Bodendorfer, Jerzy Lewandowski, Jedrzej \'Swie\.zewski | General relativity in the radial gauge: Reduced phase space and
canonical structure | 23 pages, 1 figure; matches published version | Phys. Rev. D 92, 084041 (2015) | 10.1103/PhysRevD.92.084041 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Firstly, we present a reformulation of the standard canonical approach to
spherically symmetric systems in which the radial gauge is imposed. This is
done via the gauge unfixing technique, which serves as the exposition in the
context of the radial gauge. Secondly, we apply the same techniques to the full
theory, wit... | [
{
"created": "Tue, 30 Jun 2015 17:22:52 GMT",
"version": "v1"
},
{
"created": "Thu, 19 Nov 2015 10:18:00 GMT",
"version": "v2"
}
] | 2015-11-20 | [
[
"Bodendorfer",
"Norbert",
""
],
[
"Lewandowski",
"Jerzy",
""
],
[
"Świeżewski",
"Jedrzej",
""
]
] | Firstly, we present a reformulation of the standard canonical approach to spherically symmetric systems in which the radial gauge is imposed. This is done via the gauge unfixing technique, which serves as the exposition in the context of the radial gauge. Secondly, we apply the same techniques to the full theory, witho... |
gr-qc/0202080 | T. Padmanabhan | T.Padmanabhan | Entropy and energy of a class of spacetimes with horizon: a general
derivation | revtex4; 3 pages | null | null | IUCAA preprint 06/2002 | gr-qc hep-th | null | Euclidean continuation of several Lorentzian spacetimes with horizons
requires treating the Euclidean time coordinate to be periodic with some period
$\beta$.
Such spacetimes (Schwarzschild, deSitter,Rindler .....) allow a temperature
$T=\beta^{-1}$ to be associated with the horizon. I construct a canonical
ensembl... | [
{
"created": "Thu, 21 Feb 2002 16:36:40 GMT",
"version": "v1"
}
] | 2016-08-31 | [
[
"Padmanabhan",
"T.",
""
]
] | Euclidean continuation of several Lorentzian spacetimes with horizons requires treating the Euclidean time coordinate to be periodic with some period $\beta$. Such spacetimes (Schwarzschild, deSitter,Rindler .....) allow a temperature $T=\beta^{-1}$ to be associated with the horizon. I construct a canonical ensemble of... |
1708.08797 | Constantinos Skordis | Constantinos Skordis | Conditions for equivalence of static spherically symmetric spacetimes to
almost Friedman-Robertson-Walker | 12 pages | null | null | null | gr-qc math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We determine the conditions under which a static spherically symmetric
spacetime metric is equivalent to a perturbed Friedman-Robertson-Walker metric.
We construct the correspondence between the two metrics and discuss a simple
application.
| [
{
"created": "Tue, 29 Aug 2017 14:48:06 GMT",
"version": "v1"
}
] | 2017-08-30 | [
[
"Skordis",
"Constantinos",
""
]
] | We determine the conditions under which a static spherically symmetric spacetime metric is equivalent to a perturbed Friedman-Robertson-Walker metric. We construct the correspondence between the two metrics and discuss a simple application. |
1012.0908 | Stefan Hild | S. Hild, M. Abernathy, F. Acernese, P. Amaro-Seoane, N. Andersson, K.
Arun, F. Barone, B. Barr, M. Barsuglia, M. Beker, N. Beveridge, S.
Birindelli, S. Bose, L. Bosi, S. Braccini, C. Bradaschia, T. Bulik, E.
Calloni, G. Cella, E. Chassande Mottin, S. Chelkowski, A. Chincarini, J.
Clark, E. Coccia, C. Colacino, ... | Sensitivity Studies for Third-Generation Gravitational Wave
Observatories | 13 pages, 7 pictures | null | 10.1088/0264-9381/28/9/094013 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Advanced gravitational wave detectors, currently under construction, are
expected to directly observe gravitational wave signals of astrophysical
origin. The Einstein Telescope, a third-generation gravitational wave detector,
has been proposed in order to fully open up the emerging field of gravitational
wave astrono... | [
{
"created": "Sat, 4 Dec 2010 12:17:06 GMT",
"version": "v1"
}
] | 2015-05-20 | [
[
"Hild",
"S.",
""
],
[
"Abernathy",
"M.",
""
],
[
"Acernese",
"F.",
""
],
[
"Amaro-Seoane",
"P.",
""
],
[
"Andersson",
"N.",
""
],
[
"Arun",
"K.",
""
],
[
"Barone",
"F.",
""
],
[
"Barr",
"B.",
... | Advanced gravitational wave detectors, currently under construction, are expected to directly observe gravitational wave signals of astrophysical origin. The Einstein Telescope, a third-generation gravitational wave detector, has been proposed in order to fully open up the emerging field of gravitational wave astronomy... |
gr-qc/0305097 | Carl E. Dolby | Carl E. Dolby | Simultaneity and the Concept of `Particle' | Submitted to World Scientific. To appear in proceedings of the Venice
Conference on Time and Matter, August 2002 | null | null | null | gr-qc hep-th | null | The history of the particle concept is briefly reviewed, with particular
emphasis on the `foliation dependence' of many particle creation models, and
the possible connection between our notion of particle and our notion of
simultaneity. It is argued that the concept of `radar time' (originally
introduced by Sir Herma... | [
{
"created": "Tue, 27 May 2003 11:36:46 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Dolby",
"Carl E.",
""
]
] | The history of the particle concept is briefly reviewed, with particular emphasis on the `foliation dependence' of many particle creation models, and the possible connection between our notion of particle and our notion of simultaneity. It is argued that the concept of `radar time' (originally introduced by Sir Hermann... |
2205.00298 | Adri\'an Del R\'io Vega | Abhay Ashtekar, Adri\'an del R\'io, Marc Schneider | Space-like Singularities of General Relativity: A Phantom menace? | Invited article under "Introduction to Current Research", GRG (at
press). Special issue in memory of Prof. T. Padmanabhan | Gen. Relativ.Grav. (2022) 54:45 | 10.1007/s10714-022-02932-5 | null | gr-qc hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The big bang and the Schwarzschild singularities are space-like. They are
generally regarded as the "final frontiers" at which space-time ends and
general relativity breaks down. We review the status of such space-like
singularities from three increasingly more general perspectives. They are
provided by (i) A reformu... | [
{
"created": "Sat, 30 Apr 2022 16:00:27 GMT",
"version": "v1"
}
] | 2022-05-24 | [
[
"Ashtekar",
"Abhay",
""
],
[
"del Río",
"Adrián",
""
],
[
"Schneider",
"Marc",
""
]
] | The big bang and the Schwarzschild singularities are space-like. They are generally regarded as the "final frontiers" at which space-time ends and general relativity breaks down. We review the status of such space-like singularities from three increasingly more general perspectives. They are provided by (i) A reformula... |
2207.12438 | Sean Li | Sean E. Li, Thomas W. Baumgarte, Kenneth A. Dennison, and H. P. de
Oliveira | Bona-Mass\'o slices of Reissner-Nordstr\"om spacetimes | 9 pages, 10 figures | Phys. Rev. D 106, 104059 (2022) | 10.1103/PhysRevD.106.104059 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Motivated by recent numerical relativity simulations of charged black holes
and their interactions, we explore the properties of common slicing conditions
in Reissner-Nordstr\"om spacetimes. Specifically, we consider different choices
for the so-called Bona-Mass\'o function, and construct static and spherically
symme... | [
{
"created": "Mon, 25 Jul 2022 18:00:26 GMT",
"version": "v1"
},
{
"created": "Wed, 11 Jan 2023 15:30:06 GMT",
"version": "v2"
}
] | 2023-01-12 | [
[
"Li",
"Sean E.",
""
],
[
"Baumgarte",
"Thomas W.",
""
],
[
"Dennison",
"Kenneth A.",
""
],
[
"de Oliveira",
"H. P.",
""
]
] | Motivated by recent numerical relativity simulations of charged black holes and their interactions, we explore the properties of common slicing conditions in Reissner-Nordstr\"om spacetimes. Specifically, we consider different choices for the so-called Bona-Mass\'o function, and construct static and spherically symmetr... |
gr-qc/0307118 | Carlo Rovelli | Florian Conrady, Luisa Doplicher, Robert Oeckl, Carlo Rovelli, Massimo
Testa | Minkowski vacuum in background independent quantum gravity | 8 pages, no figures | Phys.Rev. D69 (2004) 064019 | 10.1103/PhysRevD.69.064019 | ROMA1-2003-1539, AEI-2003-063 | gr-qc | null | We consider a local formalism in quantum field theory, in which no reference
is made to infinitely extended spacial surfaces, infinite past or infinite
future. This can be obtained in terms of a functional W[f,S] of the field f on
a closed 3d surface S that bounds a finite region R of Minkowski spacetime. The
depende... | [
{
"created": "Wed, 30 Jul 2003 12:32:14 GMT",
"version": "v1"
}
] | 2009-11-10 | [
[
"Conrady",
"Florian",
""
],
[
"Doplicher",
"Luisa",
""
],
[
"Oeckl",
"Robert",
""
],
[
"Rovelli",
"Carlo",
""
],
[
"Testa",
"Massimo",
""
]
] | We consider a local formalism in quantum field theory, in which no reference is made to infinitely extended spacial surfaces, infinite past or infinite future. This can be obtained in terms of a functional W[f,S] of the field f on a closed 3d surface S that bounds a finite region R of Minkowski spacetime. The dependenc... |
1211.3289 | \"Ozg\"ur Acik | \"Umit Ertem, \"Ozg\"ur A\c{c}{\i}k | Couplings of gravitational currents with Chern-Simons gravities | 8 pages, a new discussion with two paragraphs and some references
added, published version | Phys. Rev. D 87, 044052 (2013) | 10.1103/PhysRevD.87.044052 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The coupling of conserved p-brane currents with non-Abelian gaugetheories is
done consistently by using Chern-Simons forms. Conserved currents localized on
p-branes that have a gravitational origin can be constructed from Killing-Yano
forms of the underlying spacetime. We propose a generalization of the coupling
proc... | [
{
"created": "Wed, 14 Nov 2012 12:27:52 GMT",
"version": "v1"
},
{
"created": "Thu, 28 Feb 2013 19:05:45 GMT",
"version": "v2"
}
] | 2015-06-12 | [
[
"Ertem",
"Ümit",
""
],
[
"Açık",
"Özgür",
""
]
] | The coupling of conserved p-brane currents with non-Abelian gaugetheories is done consistently by using Chern-Simons forms. Conserved currents localized on p-branes that have a gravitational origin can be constructed from Killing-Yano forms of the underlying spacetime. We propose a generalization of the coupling proced... |
1406.2397 | Hongwei Yu | Qinglin Li, Hongwei Yu, Wenting Zhou | Response of a uniformly accelerated detector to massless
Rarita-Schwinger fields in vacuum | 12 pages, no figures | Annals of Physics 348 (2014) 144 | 10.1016/j.aop.2014.05.016 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the response of a uniformly accelerated detector modeled by a
two-level atom nonlinearly coupled to vacuum massless Rarita-Schwinger fields.
We first generalize the formalism developed by Dalibard, Dupont-Roc, and
Cohen-Tannoudji in the linear coupling case, and we then calculate the mean
rate of change of t... | [
{
"created": "Tue, 10 Jun 2014 01:00:16 GMT",
"version": "v1"
}
] | 2015-06-19 | [
[
"Li",
"Qinglin",
""
],
[
"Yu",
"Hongwei",
""
],
[
"Zhou",
"Wenting",
""
]
] | We study the response of a uniformly accelerated detector modeled by a two-level atom nonlinearly coupled to vacuum massless Rarita-Schwinger fields. We first generalize the formalism developed by Dalibard, Dupont-Roc, and Cohen-Tannoudji in the linear coupling case, and we then calculate the mean rate of change of the... |
2011.01326 | Sarah Kahlen | Jose Luis Bl\'azquez-Salcedo, Sarah Kahlen, Jutta Kunz | Critical solutions of scalarized black holes | null | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider charged black holes with scalar hair obtained in a class of
Einstein-Maxwell-scalar models, where the scalar field is coupled to the
Maxwell invariant with a quartic coupling function. Besides the
Reissner-Nordstr\"om black holes, these models allow for black holes with
scalar hair. Scrutinizing the domai... | [
{
"created": "Mon, 2 Nov 2020 21:14:22 GMT",
"version": "v1"
}
] | 2020-11-04 | [
[
"Blázquez-Salcedo",
"Jose Luis",
""
],
[
"Kahlen",
"Sarah",
""
],
[
"Kunz",
"Jutta",
""
]
] | We consider charged black holes with scalar hair obtained in a class of Einstein-Maxwell-scalar models, where the scalar field is coupled to the Maxwell invariant with a quartic coupling function. Besides the Reissner-Nordstr\"om black holes, these models allow for black holes with scalar hair. Scrutinizing the domain ... |
1307.4158 | Drew Keppel | Drew Keppel | Metrics for multi-detector template placement in searches for
short-duration nonprecessing inspiral gravitational-wave signals | 10 pages, 5 figures | null | null | LIGO-P1300084 | gr-qc astro-ph.IM physics.data-an | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Using the family of multi-detector F-statistic metrics for short duration,
nonprecessing inspiral signals, we derive a marginalized metric that is
directly applicable to the problem of generating template banks for coincident
and coherent multi-detector searches for gravitational-waves. This metric is
compared to oth... | [
{
"created": "Tue, 16 Jul 2013 04:09:48 GMT",
"version": "v1"
}
] | 2013-07-17 | [
[
"Keppel",
"Drew",
""
]
] | Using the family of multi-detector F-statistic metrics for short duration, nonprecessing inspiral signals, we derive a marginalized metric that is directly applicable to the problem of generating template banks for coincident and coherent multi-detector searches for gravitational-waves. This metric is compared to other... |
1902.08037 | Pritikana Bhandari | Subhayan Maity, Pritikana Bhandari, Subenoy Chakraborty | Universe consisting of diffusive dark fluids: thermodynamics and
stability analysis | null | European Physical Journal C79(2019) no.1,82 | 10.1140/epjc/s10052-019-6603-0 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The present work deals with homogeneous and isotropic FLRW model of the
Universe having a system of non-interacting diffusive cosmic fluids with
barotropic equation of state (constant or variable equation of state
parameter). Due to diffusive nature of the cosmic fluids, the divergence of the
energy momentum tensor i... | [
{
"created": "Tue, 19 Feb 2019 05:45:43 GMT",
"version": "v1"
}
] | 2019-02-22 | [
[
"Maity",
"Subhayan",
""
],
[
"Bhandari",
"Pritikana",
""
],
[
"Chakraborty",
"Subenoy",
""
]
] | The present work deals with homogeneous and isotropic FLRW model of the Universe having a system of non-interacting diffusive cosmic fluids with barotropic equation of state (constant or variable equation of state parameter). Due to diffusive nature of the cosmic fluids, the divergence of the energy momentum tensor is ... |
2403.16229 | Dawood Kothawala Dr. | Dawood Kothawala | Non-Inertial Rigid Frames and the Principle of Equivalence | 7 pages, 2 figures | null | null | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | One version of the principle of equivalence, as originally formulated by
Einstein, states that ``gravity" can be mimicked locally by going to an
``accelerated frame of reference". As highlighted by Synge, the physical
content of this principle remains obscure in so far as it does not refer to the
Riemann tensor $R_{a... | [
{
"created": "Sun, 24 Mar 2024 16:47:54 GMT",
"version": "v1"
}
] | 2024-03-26 | [
[
"Kothawala",
"Dawood",
""
]
] | One version of the principle of equivalence, as originally formulated by Einstein, states that ``gravity" can be mimicked locally by going to an ``accelerated frame of reference". As highlighted by Synge, the physical content of this principle remains obscure in so far as it does not refer to the Riemann tensor $R_{abc... |
0710.1763 | Chih-Hung Wang | Chih-Hung Wang | Linearized Torsion Waves in a Tensor-Tensor Theory of Gravity | 13 pages | Annales de la Fondation Louis de Broglie, Volume 32 no 2-3, 267,
2007 | null | null | gr-qc | null | We investigate a linearized tensor-tensor theory of gravity with torsion and
a perturbed torsion wave solution is discovered in background Minkowski
spacetime with zero torsion. Furthermore, gauge transformations of any
perturbed tensor field are derived in general background non-Riemannian
geometries. By calculating... | [
{
"created": "Tue, 9 Oct 2007 13:22:53 GMT",
"version": "v1"
},
{
"created": "Wed, 12 Dec 2007 05:30:39 GMT",
"version": "v2"
}
] | 2008-07-02 | [
[
"Wang",
"Chih-Hung",
""
]
] | We investigate a linearized tensor-tensor theory of gravity with torsion and a perturbed torsion wave solution is discovered in background Minkowski spacetime with zero torsion. Furthermore, gauge transformations of any perturbed tensor field are derived in general background non-Riemannian geometries. By calculating a... |
2307.16305 | Deng Wang | Deng Wang | Testing the first law of black hole mechanics with GW150914 | 3 pgs, 2 figs. This study gives a possible evidence of 1st law of BH
mechanics | null | null | null | gr-qc astro-ph.CO hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Whether the first law of black hole mechanics is correct is an important
question in black holes physics. Subjected to current limited gravitational
wave events, we propose its weaker version that permits a relatively large
perturbation to a black hole system and implement a simple test with the first
event GW150914.... | [
{
"created": "Sun, 30 Jul 2023 19:24:41 GMT",
"version": "v1"
},
{
"created": "Tue, 1 Aug 2023 12:24:59 GMT",
"version": "v2"
}
] | 2023-08-02 | [
[
"Wang",
"Deng",
""
]
] | Whether the first law of black hole mechanics is correct is an important question in black holes physics. Subjected to current limited gravitational wave events, we propose its weaker version that permits a relatively large perturbation to a black hole system and implement a simple test with the first event GW150914. C... |
1110.1659 | Christian Corda cordac | Lawrence B. Crowell and Christian Corda | f(R) Gravity, relic coherent gravitons and optical chaos | 32 pages, 1 figure, invited paper to appear in "Beyond Standard
Gravity and Cosmology", special issue of "Galaxies" edited by Antonaldo
Diaferio | Galaxies 2014, 2(1), 160-188 | 10.3390/galaxies2010160 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We discuss the production of massive relic coherent gravitons in a particular
class of f(R) gravity which arises from string theory and their possible
imprint in Cosmic Microwave Background. In fact, in the very early universe
these relic gravitons could have acted as slow gravity waves. They may have
then acted to f... | [
{
"created": "Sat, 8 Oct 2011 18:41:19 GMT",
"version": "v1"
},
{
"created": "Thu, 17 Nov 2011 06:29:22 GMT",
"version": "v2"
},
{
"created": "Wed, 19 Feb 2014 09:32:05 GMT",
"version": "v3"
}
] | 2015-03-19 | [
[
"Crowell",
"Lawrence B.",
""
],
[
"Corda",
"Christian",
""
]
] | We discuss the production of massive relic coherent gravitons in a particular class of f(R) gravity which arises from string theory and their possible imprint in Cosmic Microwave Background. In fact, in the very early universe these relic gravitons could have acted as slow gravity waves. They may have then acted to foc... |
1106.3031 | Felipe Poulis | F. P. Poulis and J. M. Salim | Weyl Geometry as Characterization of Space-Time | 12 pages | Int. J. Mod. Phys.: Conf. Series, V. 3, 87-97 (2011) | 10.1142/S2010194511001176 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Motivated by an axiomatic approach to characterize space-time it is
investigated a reformulation of Einstein's gravity where the pseudo-riemannian
geometry is substituted by a Weyl one. It is presented the main properties of
the Weyl geometry and it is shown that it gives extra contributions to the
trajectories of te... | [
{
"created": "Wed, 15 Jun 2011 17:30:30 GMT",
"version": "v1"
},
{
"created": "Thu, 15 Dec 2011 21:26:32 GMT",
"version": "v2"
}
] | 2011-12-19 | [
[
"Poulis",
"F. P.",
""
],
[
"Salim",
"J. M.",
""
]
] | Motivated by an axiomatic approach to characterize space-time it is investigated a reformulation of Einstein's gravity where the pseudo-riemannian geometry is substituted by a Weyl one. It is presented the main properties of the Weyl geometry and it is shown that it gives extra contributions to the trajectories of test... |
2010.02023 | Luigi Pilo | Marco Celoria, Denis Comelli, Luigi Pilo, Rocco Rollo | Boosting GWs in Supersolid Inflation | 32 pages, 8 figures. Few typos corrected and comments added | null | 10.1007/JHEP01(2021)185 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Inflation driven by a generic self-gravitating medium is an interesting
alternative to study the impact of spontaneous spacetime symmetry breaking
during a quasi de-Sitter phase, in particular the 4-dimensional diffeomorphism
invariance of GR is spontaneously broken down to $ISO(3)$. The effective
description is base... | [
{
"created": "Fri, 2 Oct 2020 10:54:56 GMT",
"version": "v1"
},
{
"created": "Thu, 10 Dec 2020 13:27:47 GMT",
"version": "v2"
}
] | 2021-02-24 | [
[
"Celoria",
"Marco",
""
],
[
"Comelli",
"Denis",
""
],
[
"Pilo",
"Luigi",
""
],
[
"Rollo",
"Rocco",
""
]
] | Inflation driven by a generic self-gravitating medium is an interesting alternative to study the impact of spontaneous spacetime symmetry breaking during a quasi de-Sitter phase, in particular the 4-dimensional diffeomorphism invariance of GR is spontaneously broken down to $ISO(3)$. The effective description is based ... |
gr-qc/0303072 | Martin Bojowald | Martin Bojowald and Kevin Vandersloot | Loop Quantum Cosmology, Boundary Proposals, and Inflation | 20 pages, 6 figures | Phys.Rev. D67 (2003) 124023 | 10.1103/PhysRevD.67.124023 | CGPG-03/3-4 | gr-qc astro-ph hep-th | null | Loop quantum cosmology of the closed isotropic model is studied with a
special emphasis on a comparison with traditional results obtained in the
Wheeler-DeWitt approach. This includes the relation of the dynamical initial
conditions with boundary conditions such as the no-boundary or the tunneling
proposal and a disc... | [
{
"created": "Wed, 19 Mar 2003 18:52:19 GMT",
"version": "v1"
}
] | 2009-11-10 | [
[
"Bojowald",
"Martin",
""
],
[
"Vandersloot",
"Kevin",
""
]
] | Loop quantum cosmology of the closed isotropic model is studied with a special emphasis on a comparison with traditional results obtained in the Wheeler-DeWitt approach. This includes the relation of the dynamical initial conditions with boundary conditions such as the no-boundary or the tunneling proposal and a discus... |
0907.5197 | Adam Pound | Adam Pound | The self-consistent gravitational self-force | 44 pages, 4 figures | Phys.Rev.D81:024023,2010 | 10.1103/PhysRevD.81.024023 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | I review the problem of motion for small bodies in General Relativity, with
an emphasis on developing a self-consistent treatment of the gravitational
self-force. An analysis of the various derivations extant in the literature
leads me to formulate an asymptotic expansion in which the metric is expanded
while a repre... | [
{
"created": "Wed, 29 Jul 2009 19:51:52 GMT",
"version": "v1"
},
{
"created": "Wed, 21 Oct 2009 16:13:10 GMT",
"version": "v2"
}
] | 2010-04-06 | [
[
"Pound",
"Adam",
""
]
] | I review the problem of motion for small bodies in General Relativity, with an emphasis on developing a self-consistent treatment of the gravitational self-force. An analysis of the various derivations extant in the literature leads me to formulate an asymptotic expansion in which the metric is expanded while a represe... |
0805.3175 | Isabeau Pr\'emont-Schwarz | Fotini Markopoulou, Isabeau Pr\'emont-Schwarz | Conserved Topological Defects in Non-Embedded Graphs in Quantum Gravity | 42 pages, 34 figures | Class.Quant.Grav.25:205015,2008 | 10.1088/0264-9381/25/20/205015 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We follow up on previous work which found that commonly used graph evolution
moves lead to conserved quantities that can be expressed in terms of the
braiding of the graph in its embedding space. We study non-embedded graphs
under three distinct sets of dynamical rules and find non-trivial conserved
quantities that c... | [
{
"created": "Tue, 20 May 2008 20:46:32 GMT",
"version": "v1"
},
{
"created": "Fri, 21 Nov 2008 02:12:48 GMT",
"version": "v2"
}
] | 2008-11-26 | [
[
"Markopoulou",
"Fotini",
""
],
[
"Prémont-Schwarz",
"Isabeau",
""
]
] | We follow up on previous work which found that commonly used graph evolution moves lead to conserved quantities that can be expressed in terms of the braiding of the graph in its embedding space. We study non-embedded graphs under three distinct sets of dynamical rules and find non-trivial conserved quantities that can... |
2112.02364 | Xun Xue | Jing Li, Yongxiang Zhou and Xun Xue | Spatial Curvature and Large Scale Lorentz Violation | 17 pages, 16 figures | null | 10.1088/1674-1137/ac5319 | null | gr-qc astro-ph.CO | http://creativecommons.org/licenses/by/4.0/ | The tension between the Hubble constant obtained from the local measurements
and from cosmic microwave background (CMB) measurements motivated us to
consider the cosmological model beyond $\Lambda$CDM one. We investigate the
cosmology in the large scale Lorentz violation model with non-vanishing spatial
curvature. Th... | [
{
"created": "Sat, 4 Dec 2021 15:47:47 GMT",
"version": "v1"
}
] | 2022-06-15 | [
[
"Li",
"Jing",
""
],
[
"Zhou",
"Yongxiang",
""
],
[
"Xue",
"Xun",
""
]
] | The tension between the Hubble constant obtained from the local measurements and from cosmic microwave background (CMB) measurements motivated us to consider the cosmological model beyond $\Lambda$CDM one. We investigate the cosmology in the large scale Lorentz violation model with non-vanishing spatial curvature. The ... |
1807.10281 | Alexander Vikman | Eugeny Babichev, Sabir Ramazanov, Alexander Vikman | Recovering P(X) from a canonical complex field | 16 pages+appendices, references added, matches the published version | JCAP11(2018)023 | 10.1088/1475-7516/2018/11/023 | LPT-Orsay-18-89 | gr-qc astro-ph.CO hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the correspondence between models of a self-interacting canonical
complex scalar field and P(X)-theories/shift-symmetric k-essence. Both describe
the same background cosmological dynamics, provided that the amplitude of the
complex scalar is frozen modulo the Hubble drag. We compare perturbations in
these tw... | [
{
"created": "Thu, 26 Jul 2018 16:53:14 GMT",
"version": "v1"
},
{
"created": "Thu, 16 Aug 2018 13:49:07 GMT",
"version": "v2"
},
{
"created": "Tue, 20 Nov 2018 09:24:33 GMT",
"version": "v3"
}
] | 2018-11-21 | [
[
"Babichev",
"Eugeny",
""
],
[
"Ramazanov",
"Sabir",
""
],
[
"Vikman",
"Alexander",
""
]
] | We study the correspondence between models of a self-interacting canonical complex scalar field and P(X)-theories/shift-symmetric k-essence. Both describe the same background cosmological dynamics, provided that the amplitude of the complex scalar is frozen modulo the Hubble drag. We compare perturbations in these two ... |
1801.02250 | Stephan Reimers | Kevin Eickhoff, Stephan Reimers | Dynamics of test particles in the five-dimensional G\"{o}del spacetime | null | Phys. Rev. D 98, 044050 (2018) | 10.1103/PhysRevD.98.044050 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We derive the complete set of geodesic equations for massive and massless,
charged test particles of a five-dimensional, rotating and charged solution of
the Einstein-Maxwell-Chern-Simons field equations in five-dimensional minimal
gauged supergravity and present their analytical solutions. We study the polar
and rad... | [
{
"created": "Sun, 7 Jan 2018 20:58:40 GMT",
"version": "v1"
}
] | 2018-09-12 | [
[
"Eickhoff",
"Kevin",
""
],
[
"Reimers",
"Stephan",
""
]
] | We derive the complete set of geodesic equations for massive and massless, charged test particles of a five-dimensional, rotating and charged solution of the Einstein-Maxwell-Chern-Simons field equations in five-dimensional minimal gauged supergravity and present their analytical solutions. We study the polar and radia... |
0910.1170 | Marek Lipert | Marek Lipert | Nonlinear stability of the Taub-NUT soliton in 6+1 dimensions | 19 pages, 5 figures | Class.Quant.Grav.27:145002,2010 | 10.1088/0264-9381/27/14/145002 | null | gr-qc math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Using mixed numerical and analytical methods we give evidence that the 6+1
dimensional Taub-NUT soliton is asymptotically nonlinearly stable against small
perturbations preserving biaxial Bianchi IX symmetry. We also show that for
sufficiently strong perturbations the soliton collapses to a warped black hole.
Since t... | [
{
"created": "Wed, 7 Oct 2009 07:13:13 GMT",
"version": "v1"
},
{
"created": "Tue, 31 Aug 2010 16:06:55 GMT",
"version": "v2"
}
] | 2010-09-01 | [
[
"Lipert",
"Marek",
""
]
] | Using mixed numerical and analytical methods we give evidence that the 6+1 dimensional Taub-NUT soliton is asymptotically nonlinearly stable against small perturbations preserving biaxial Bianchi IX symmetry. We also show that for sufficiently strong perturbations the soliton collapses to a warped black hole. Since thi... |
1911.05415 | Colin MacLaurin | Colin MacLaurin | Expanding space, redshifts, and rigidity: Conceptual issues in cosmology | 60 pages, 16 figures. Master's thesis at the University of Queensland | null | null | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | I examine the interpretation of photon redshifts in curved spacetime, as
being gravitational or Doppler in origin. In
Friedmann-Lema\^itre-Robertson-Walker spacetime, redshifts between comoving
observers are often attributed to "expanding space", whereas in Schwarzschild
spacetime, redshifts between static observers ... | [
{
"created": "Wed, 13 Nov 2019 12:01:54 GMT",
"version": "v1"
}
] | 2019-11-14 | [
[
"MacLaurin",
"Colin",
""
]
] | I examine the interpretation of photon redshifts in curved spacetime, as being gravitational or Doppler in origin. In Friedmann-Lema\^itre-Robertson-Walker spacetime, redshifts between comoving observers are often attributed to "expanding space", whereas in Schwarzschild spacetime, redshifts between static observers ar... |
1502.04399 | Hee-Suk Cho | Hee-Suk Cho | Parameter estimation using a complete signal and inspiral templates for
low mass binary black holes with Advanced LIGO sensitivity | 24 pages, 16 figures, major revision from version 1, matched to the
published version in CQG | Class. Quantum Grav. 32 (2015) 235007 | 10.1088/0264-9381/32/23/235007 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the validity of inspiral templates in gravitational wave data
analysis with Advanced LIGO sensitivity for low mass binary black holes with
total masses of $M \leq 30 Msun$. We mainly focus on the nonspinning system. As
our complete inspiral-merger-ringdown waveform model ($IMR$), we assume the
phenomenologic... | [
{
"created": "Mon, 16 Feb 2015 01:17:44 GMT",
"version": "v1"
},
{
"created": "Mon, 12 Oct 2015 05:49:34 GMT",
"version": "v2"
}
] | 2015-11-10 | [
[
"Cho",
"Hee-Suk",
""
]
] | We study the validity of inspiral templates in gravitational wave data analysis with Advanced LIGO sensitivity for low mass binary black holes with total masses of $M \leq 30 Msun$. We mainly focus on the nonspinning system. As our complete inspiral-merger-ringdown waveform model ($IMR$), we assume the phenomenological... |
gr-qc/0411082 | Slava G. Turyshev | Slava G. Turyshev, James G. Williams, Michael Shao, John D. Anderson,
Kenneth L. Nordtvedt Jr, and Thomas W. Murphy Jr | Laser Ranging to the Moon, Mars and Beyond | 37 pages, 9 figures, 1 table. Invited talk given at ``The 2004
NASA/JPL Workshop on Physics for Planetary Exploration.'' April 20-22, 2004,
Solvang, CA | null | null | null | gr-qc | null | Current and future optical technologies will aid exploration of the Moon and
Mars while advancing fundamental physics research in the solar system.
Technologies and possible improvements in the laser-enabled tests of various
physical phenomena are considered along with a space architecture that could be
the cornersto... | [
{
"created": "Tue, 16 Nov 2004 19:40:50 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Turyshev",
"Slava G.",
""
],
[
"Williams",
"James G.",
""
],
[
"Shao",
"Michael",
""
],
[
"Anderson",
"John D.",
""
],
[
"Nordtvedt",
"Kenneth L.",
"Jr"
],
[
"Murphy",
"Thomas W.",
"Jr"
]
] | Current and future optical technologies will aid exploration of the Moon and Mars while advancing fundamental physics research in the solar system. Technologies and possible improvements in the laser-enabled tests of various physical phenomena are considered along with a space architecture that could be the cornerstone... |
2112.10813 | Subenoy Chakraborty | Akash Bose, Subenoy Chakraborty | Is warm inflation quasi-stable? | 11 Pages | Phys.Dark Univ. 35 (2022) 100938 | 10.1016/j.dark.2021.100938 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The present work deals with a non-equilibrium thermodynamics that is
associated with the scenario of warm inflation. The premise is that an
adiabatic radiation production process holds exactly i.e. the radiation
dilution is exactly counterbalanced by a dissipation term. Under this
hypothesis, it is found that radiati... | [
{
"created": "Fri, 17 Dec 2021 05:25:19 GMT",
"version": "v1"
}
] | 2021-12-22 | [
[
"Bose",
"Akash",
""
],
[
"Chakraborty",
"Subenoy",
""
]
] | The present work deals with a non-equilibrium thermodynamics that is associated with the scenario of warm inflation. The premise is that an adiabatic radiation production process holds exactly i.e. the radiation dilution is exactly counterbalanced by a dissipation term. Under this hypothesis, it is found that radiation... |
1603.07267 | Burkhard Kleihaus | Burkhard Kleihaus and Jutta Kunz | Black Holes in Higher Dimensions (Black Strings and Black Rings) | Report on the session Black Holes in Higher Dimensions of the MG14
meeting; references added | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The last three years have again seen new exciting developments in the area of
higher dimensional black objects. For black objects with noncompact higher
dimensions, the solution space was exlored further within the blackfold
approach and with numerical schemes, yielding a large variety of new families
of solutions, w... | [
{
"created": "Wed, 23 Mar 2016 16:56:01 GMT",
"version": "v1"
},
{
"created": "Fri, 1 Apr 2016 11:31:38 GMT",
"version": "v2"
}
] | 2016-04-04 | [
[
"Kleihaus",
"Burkhard",
""
],
[
"Kunz",
"Jutta",
""
]
] | The last three years have again seen new exciting developments in the area of higher dimensional black objects. For black objects with noncompact higher dimensions, the solution space was exlored further within the blackfold approach and with numerical schemes, yielding a large variety of new families of solutions, whi... |
2307.12824 | Bogeun Gwak | Kihong Kwon, Juli\'an Barrag\'an Amado, Bogeun Gwak | Absorption cross section in gravity's rainbow from confluent Heun
equation | 19 pages | Class.Quant.Grav. 41 (2024) 035005 | 10.1088/1361-6382/ad1b92 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate the scattering of a massless scalar field by a charged
non-rotating black hole in the presence of gravity's rainbow. Using the
connection coefficients of the confluent Heun equation expressed in terms of
the semi-classical confluent conformal blocks and the instanton part of the
Nekrasov-Shatashvili (N... | [
{
"created": "Mon, 24 Jul 2023 14:22:25 GMT",
"version": "v1"
}
] | 2024-01-19 | [
[
"Kwon",
"Kihong",
""
],
[
"Amado",
"Julián Barragán",
""
],
[
"Gwak",
"Bogeun",
""
]
] | We investigate the scattering of a massless scalar field by a charged non-rotating black hole in the presence of gravity's rainbow. Using the connection coefficients of the confluent Heun equation expressed in terms of the semi-classical confluent conformal blocks and the instanton part of the Nekrasov-Shatashvili (NS)... |
0808.1602 | Sachie Shiomi | Sachie Shiomi | Proposal for a geophysical search for dilatonic waves | null | Phys.Rev.D78:042001,2008 | 10.1103/PhysRevD.78.042001 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We propose a new method of searching for the composition-dependent dilatonic
waves, predicted by unified theories of strings. In this method, Earth's
surface-gravity changes due to translational motions of its inner core, excited
by dilatonic waves, are searched for by using superconducting gravimeters. This
method h... | [
{
"created": "Tue, 12 Aug 2008 02:03:45 GMT",
"version": "v1"
}
] | 2010-04-15 | [
[
"Shiomi",
"Sachie",
""
]
] | We propose a new method of searching for the composition-dependent dilatonic waves, predicted by unified theories of strings. In this method, Earth's surface-gravity changes due to translational motions of its inner core, excited by dilatonic waves, are searched for by using superconducting gravimeters. This method has... |
1606.04481 | Celio Muniz | M. S. Cunha, C. R. Muniz, H. R. Christiansen, and V. B. Bezerra | Relativistic Landau Levels in the Rotating Cosmic String Spacetime | Writing and grammar revised. References added. 14 pages, no figures.
To appear in European Phys. J. C | null | 10.1140/epjc/s10052-016-4357-5 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In the spacetime induced by a rotating cosmic string we compute the energy
levels of a massive spinless particle coupled covariantly to a homogeneous
magnetic field parallel to the string. Afterwards, we consider the addition of
a scalar potential with a Coulomb-type and a linear confining term and
completely solve t... | [
{
"created": "Tue, 14 Jun 2016 18:05:45 GMT",
"version": "v1"
},
{
"created": "Wed, 15 Jun 2016 14:56:41 GMT",
"version": "v2"
},
{
"created": "Wed, 7 Sep 2016 16:55:54 GMT",
"version": "v3"
}
] | 2016-10-12 | [
[
"Cunha",
"M. S.",
""
],
[
"Muniz",
"C. R.",
""
],
[
"Christiansen",
"H. R.",
""
],
[
"Bezerra",
"V. B.",
""
]
] | In the spacetime induced by a rotating cosmic string we compute the energy levels of a massive spinless particle coupled covariantly to a homogeneous magnetic field parallel to the string. Afterwards, we consider the addition of a scalar potential with a Coulomb-type and a linear confining term and completely solve the... |
2111.00212 | Mohammad Atazadeh | K. Atazadeh | Maximum force conjecture in Kiselev, $4$D-EGB and Barrow
corrected-entropy black holes | 7 pages, 2 figures | Phys. Lett. B 820 (2021) 136590 | 10.1016/j.physletb.2021.136590 | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | The classical maximum force bound in the general relativity (GR) is defined
between two black holes with touching horizons. We consider the maximum force
conjecture for Kiselev solution that the black holes surrounded by
quintessential matter, $w=-2/3$. We show that the maximum force bound is
independent of black hol... | [
{
"created": "Sat, 30 Oct 2021 09:18:58 GMT",
"version": "v1"
}
] | 2021-11-02 | [
[
"Atazadeh",
"K.",
""
]
] | The classical maximum force bound in the general relativity (GR) is defined between two black holes with touching horizons. We consider the maximum force conjecture for Kiselev solution that the black holes surrounded by quintessential matter, $w=-2/3$. We show that the maximum force bound is independent of black hole ... |
gr-qc/0005115 | Samuli Hemming | Samuli Hemming and Esko Keski-Vakkuri | Hawking Radiation from AdS Black Holes | 13 pages, latex2e, v2: some clarifications and references added | Phys.Rev.D64:044006,2001 | 10.1103/PhysRevD.64.044006 | HIP-2000-25/TH | gr-qc | null | We investigate Hawking radiation from black holes in (d+1)-dimensional
anti-de Sitter space. We focus on s-waves, make use of the geometrical optics
approximation, and follow three approaches to analyze the radiation. First, we
compute a Bogoliubov transformation between Kruskal and asymptotic coordinates
and compare... | [
{
"created": "Thu, 25 May 2000 08:41:55 GMT",
"version": "v1"
},
{
"created": "Mon, 3 Jul 2000 14:08:13 GMT",
"version": "v2"
}
] | 2008-11-26 | [
[
"Hemming",
"Samuli",
""
],
[
"Keski-Vakkuri",
"Esko",
""
]
] | We investigate Hawking radiation from black holes in (d+1)-dimensional anti-de Sitter space. We focus on s-waves, make use of the geometrical optics approximation, and follow three approaches to analyze the radiation. First, we compute a Bogoliubov transformation between Kruskal and asymptotic coordinates and compare t... |
gr-qc/9405075 | Gil Lewis | Gilbert N. Lewis (Michigan Technological University, Houghton,
Michigan and Richard N. Lewis) | The Behavior of a Spherical Hole in an Infinite Uniform Universe | 32 pages, LaTex, 3 postscript figures, MTU-MA-94-001 | null | null | null | gr-qc | null | In this paper, the behavior of a spherical hole in an otherwise infinite and
uniform universe is investigated. First, the Newtonian theory is developed. The
concept of negative gravity, an outward gravitational force acting away from
the center of the spherical hole, is presented, and the resulting expansion of
the h... | [
{
"created": "Tue, 31 May 1994 19:33:00 GMT",
"version": "v1"
}
] | 2009-09-25 | [
[
"Lewis",
"Gilbert N.",
"",
"Michigan Technological University, Houghton,\n Michigan and Richard N. Lewis"
]
] | In this paper, the behavior of a spherical hole in an otherwise infinite and uniform universe is investigated. First, the Newtonian theory is developed. The concept of negative gravity, an outward gravitational force acting away from the center of the spherical hole, is presented, and the resulting expansion of the hol... |
1208.2228 | Hal Haggard | Eugenio Bianchi and Hal M. Haggard | Bohr-Sommerfeld Quantization of Space | 32 pages, 10 figures | Phys.Rev. D86 (2012) 124010 | 10.1103/PhysRevD.86.124010 | null | gr-qc math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We introduce semiclassical methods into the study of the volume spectrum in
loop gravity. The classical system behind a 4-valent spinnetwork node is a
Euclidean tetrahedron. We investigate the tetrahedral volume dynamics on phase
space and apply Bohr-Sommerfeld quantization to find the volume spectrum. The
analysis s... | [
{
"created": "Fri, 10 Aug 2012 17:40:46 GMT",
"version": "v1"
}
] | 2014-02-19 | [
[
"Bianchi",
"Eugenio",
""
],
[
"Haggard",
"Hal M.",
""
]
] | We introduce semiclassical methods into the study of the volume spectrum in loop gravity. The classical system behind a 4-valent spinnetwork node is a Euclidean tetrahedron. We investigate the tetrahedral volume dynamics on phase space and apply Bohr-Sommerfeld quantization to find the volume spectrum. The analysis sho... |
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