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2112.01747 | Yan-Gang Miao | Yang Guo, Yan-Gang Miao | Charged black-bounce spacetimes: Photon rings, shadows and observational
appearances | v1: 10 pages, 6 figures; v2: references added; v3: 12 pages, 7
figures, clarifications and references added, final version to appear in
Nuclear Physics B | Nucl. Phys. B 983 (2022) 115938 | 10.1016/j.nuclphysb.2022.115938 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The photon ring, shadow and observational appearance of the emission
originating near a charged black-bounce are investigated. Based on the geodesic
analysis, we determine the upper and lower limits of critical impact parameters
of a charged black-bounce. In particular, we find that the charged black-bounce
shares th... | [
{
"created": "Fri, 3 Dec 2021 07:00:23 GMT",
"version": "v1"
},
{
"created": "Mon, 13 Dec 2021 09:09:37 GMT",
"version": "v2"
},
{
"created": "Sun, 7 Aug 2022 10:40:07 GMT",
"version": "v3"
}
] | 2022-08-23 | [
[
"Guo",
"Yang",
""
],
[
"Miao",
"Yan-Gang",
""
]
] | The photon ring, shadow and observational appearance of the emission originating near a charged black-bounce are investigated. Based on the geodesic analysis, we determine the upper and lower limits of critical impact parameters of a charged black-bounce. In particular, we find that the charged black-bounce shares the ... |
1409.2407 | Sebastian Steinhaus | Bianca Dittrich, Sebastian Mizera, Sebastian Steinhaus | Decorated tensor network renormalization for lattice gauge theories and
spin foam models | 20 pages, 13 figures. v2: extended explanation of tensor network
algorithm with focus on Abelian case | New J.Phys. 18 (2016) no.5, 053009 | 10.1088/1367-2630/18/5/053009 | null | gr-qc cond-mat.str-el hep-lat hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Tensor network techniques have proved to be powerful tools that can be
employed to explore the large scale dynamics of lattice systems. Nonetheless,
the redundancy of degrees of freedom in lattice gauge theories (and related
models) poses a challenge for standard tensor network algorithms. We
accommodate for such sys... | [
{
"created": "Mon, 8 Sep 2014 15:53:31 GMT",
"version": "v1"
},
{
"created": "Fri, 6 May 2016 16:17:44 GMT",
"version": "v2"
}
] | 2016-05-12 | [
[
"Dittrich",
"Bianca",
""
],
[
"Mizera",
"Sebastian",
""
],
[
"Steinhaus",
"Sebastian",
""
]
] | Tensor network techniques have proved to be powerful tools that can be employed to explore the large scale dynamics of lattice systems. Nonetheless, the redundancy of degrees of freedom in lattice gauge theories (and related models) poses a challenge for standard tensor network algorithms. We accommodate for such syste... |
gr-qc/0506084 | Jerzy Kowalski-Glikman | Katarzyna Imilkowska and Jerzy Kowalski-Glikman | Doubly Special Relativity as a Limit of Gravity | 26 pages, Submitted to Lecture Notes in Physics | Lect.NotesPhys.702:279-298,2006 | 10.1007/3-540-34523-X_10 | null | gr-qc | null | Doubly Special Relativity (DSR) is a theory with two observer-independent
scales, of velocity and mass, which is expected to replace Special Relativity
at ultra-high energies. In these notes we first discuss the postulates of DSR,
and then turn to presenting arguments supporting the hypothesis that DSR can be
regarde... | [
{
"created": "Wed, 15 Jun 2005 09:37:57 GMT",
"version": "v1"
},
{
"created": "Fri, 17 Jun 2005 07:19:17 GMT",
"version": "v2"
}
] | 2008-11-26 | [
[
"Imilkowska",
"Katarzyna",
""
],
[
"Kowalski-Glikman",
"Jerzy",
""
]
] | Doubly Special Relativity (DSR) is a theory with two observer-independent scales, of velocity and mass, which is expected to replace Special Relativity at ultra-high energies. In these notes we first discuss the postulates of DSR, and then turn to presenting arguments supporting the hypothesis that DSR can be regarded ... |
2407.20476 | Sebastiano Segreto | Sebastiano Segreto, Giovanni Montani | Mixmaster Universe in a 2D non-commutative GUP framework | 23 pages, 3 figures | null | null | null | gr-qc hep-th | http://creativecommons.org/licenses/by/4.0/ | In this work, we examine the dynamical aspects of the cosmological Mixmaster
model within the framework of non-commutative generalized uncertainty principle
(GUP) theories. The theory is formulated classically by introducing a
well-defined symplectic form that differs from the ordinary one, thereby
inducing a general... | [
{
"created": "Tue, 30 Jul 2024 00:28:18 GMT",
"version": "v1"
}
] | 2024-07-31 | [
[
"Segreto",
"Sebastiano",
""
],
[
"Montani",
"Giovanni",
""
]
] | In this work, we examine the dynamical aspects of the cosmological Mixmaster model within the framework of non-commutative generalized uncertainty principle (GUP) theories. The theory is formulated classically by introducing a well-defined symplectic form that differs from the ordinary one, thereby inducing a general d... |
1704.05378 | Sergey Chervon | Sergey V. Chervon and Igor V. Fomin | On calculation of the cosmological parameters in exact models of
inflation | 5 pages, publication of 2008, minor corrections | Grav. & Cosmol. v.14, (2008) 163 | 10.1134/S0202289308020060 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We discuss a method of calculating the key cosmological parameters on the
basis of a selected scale factor by using exact solutions of the background
equations. We specify the formulas for calculating the power spectrum, the
spectral indices and their ratios, and the ratio of squared amplitudes of
scalar and tensor p... | [
{
"created": "Tue, 18 Apr 2017 14:51:45 GMT",
"version": "v1"
}
] | 2017-04-19 | [
[
"Chervon",
"Sergey V.",
""
],
[
"Fomin",
"Igor V.",
""
]
] | We discuss a method of calculating the key cosmological parameters on the basis of a selected scale factor by using exact solutions of the background equations. We specify the formulas for calculating the power spectrum, the spectral indices and their ratios, and the ratio of squared amplitudes of scalar and tensor per... |
gr-qc/0401098 | Bernd Reimann | Bernd Reimann, Bernd Bruegmann | Late Time Analysis for Maximal Slicing of Reissner-Nordstr\"om Puncture
Evolutions | 22 pages, 4 figures, changes in Sec. IV B, as published in Phys. Rev.
D | Phys.Rev.D69:124009,2004 | 10.1103/PhysRevD.69.124009 | AEI-2003-107, CGPG-03/12-1 | gr-qc | null | We perform an analytic late time analysis for maximal slicing of the
Reissner-Nordstr\"om black hole spacetime. In particular, we discuss the
collapse of the lapse in terms of its late time behavior at the throat and at
the event horizon for the even and the puncture lapse. In the latter case we
also determine the va... | [
{
"created": "Fri, 23 Jan 2004 18:25:26 GMT",
"version": "v1"
},
{
"created": "Thu, 10 Jun 2004 16:48:02 GMT",
"version": "v2"
}
] | 2008-11-26 | [
[
"Reimann",
"Bernd",
""
],
[
"Bruegmann",
"Bernd",
""
]
] | We perform an analytic late time analysis for maximal slicing of the Reissner-Nordstr\"om black hole spacetime. In particular, we discuss the collapse of the lapse in terms of its late time behavior at the throat and at the event horizon for the even and the puncture lapse. In the latter case we also determine the valu... |
2309.02709 | Soham Chatterjee | Sagnik Roy, Soham Chatterjee and Ratna Koley | Shadow of higher dimensional collapsing dark star and blackhole | 15 pages, 4 figures | Eur.Phys.J.C 84 (2024) 1, 47 | 10.1140/epjc/s10052-023-12379-w | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | The shadow of a black hole or a collapsing star is of great importance as we
can extract important properties of the object and of the surrounding spacetime
from the shadow profile. It can also be used to distinguish different types of
black holes and ultra compact objects. In this work, we have analytically
calculat... | [
{
"created": "Wed, 6 Sep 2023 04:43:26 GMT",
"version": "v1"
},
{
"created": "Fri, 5 Jul 2024 13:14:38 GMT",
"version": "v2"
}
] | 2024-07-08 | [
[
"Roy",
"Sagnik",
""
],
[
"Chatterjee",
"Soham",
""
],
[
"Koley",
"Ratna",
""
]
] | The shadow of a black hole or a collapsing star is of great importance as we can extract important properties of the object and of the surrounding spacetime from the shadow profile. It can also be used to distinguish different types of black holes and ultra compact objects. In this work, we have analytically calculated... |
1611.01062 | Jeremy Sakstein | Jeremy Sakstein, Michael Kenna-Allison, Kazuya Koyama | Stellar Pulsations in Beyond Horndeski Gravity Theories | 13 pages, 4 figures, 1 table. Updated to reflect published version.
Minor changes from previous version | JCAP03(2017)007 | 10.1088/1475-7516/2017/03/007 | null | gr-qc astro-ph.CO astro-ph.SR hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Theories of gravity in the beyond Horndeski class recover the predictions of
general relativity in the solar system whilst admitting novel cosmologies,
including late-time de Sitter solutions in the absence of a cosmological
constant. Deviations from Newton's law are predicted inside astrophysical
bodies, which allow... | [
{
"created": "Thu, 3 Nov 2016 15:28:29 GMT",
"version": "v1"
},
{
"created": "Mon, 7 Nov 2016 15:20:47 GMT",
"version": "v2"
},
{
"created": "Wed, 22 Feb 2017 14:14:58 GMT",
"version": "v3"
}
] | 2017-03-08 | [
[
"Sakstein",
"Jeremy",
""
],
[
"Kenna-Allison",
"Michael",
""
],
[
"Koyama",
"Kazuya",
""
]
] | Theories of gravity in the beyond Horndeski class recover the predictions of general relativity in the solar system whilst admitting novel cosmologies, including late-time de Sitter solutions in the absence of a cosmological constant. Deviations from Newton's law are predicted inside astrophysical bodies, which allow f... |
1203.3799 | Muhammad Sharif | M. Sharif and M. Azam | Effects of Electromagnetic Field on the Dynamical Instability of
Cylindrical Collapse | null | JCAP 02(2012)043 | 10.1088/1475-7516/2012/02/043 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The objective of this paper is to discuss the dynamical instability in the
context of Newtonian and post Newtonian regimes. For this purpose, we consider
non-viscous heat conducting charged isotropic fluid as a collapsing matter with
cylindrical symmetry. Darmois junction conditions are formulated. The
perturbation s... | [
{
"created": "Fri, 16 Mar 2012 02:09:07 GMT",
"version": "v1"
}
] | 2015-06-04 | [
[
"Sharif",
"M.",
""
],
[
"Azam",
"M.",
""
]
] | The objective of this paper is to discuss the dynamical instability in the context of Newtonian and post Newtonian regimes. For this purpose, we consider non-viscous heat conducting charged isotropic fluid as a collapsing matter with cylindrical symmetry. Darmois junction conditions are formulated. The perturbation sch... |
gr-qc/0201039 | Peter Leifer | P. Leifer | Super-Relativity and State-Dependent Gauge Fields | 20 pages, LaTeX, submitted to the Foundations of Physics Letters,
some formulas improved, minor grammatical changes | null | null | null | gr-qc hep-th quant-ph | null | State-dependent gauge principle invoked to realize the relativity to a
measuring device, has been proposed. Self-consistent global (cosmic) potential
forms the state space of the fundamental field and its connection, agreed with
Fubini-Study metric of $CP(N-1)$, serves as state-dependent gauge potential. In
this fram... | [
{
"created": "Fri, 11 Jan 2002 20:01:27 GMT",
"version": "v1"
},
{
"created": "Sun, 13 Jan 2002 08:40:29 GMT",
"version": "v2"
},
{
"created": "Sun, 27 Jan 2002 18:56:53 GMT",
"version": "v3"
}
] | 2007-05-23 | [
[
"Leifer",
"P.",
""
]
] | State-dependent gauge principle invoked to realize the relativity to a measuring device, has been proposed. Self-consistent global (cosmic) potential forms the state space of the fundamental field and its connection, agreed with Fubini-Study metric of $CP(N-1)$, serves as state-dependent gauge potential. In this framew... |
gr-qc/9412022 | Harald Mueller | Harald F. Muller and Christoph Schmid | Non--Gaussian Primordial Fluctuations | 9 pages, uses AMSTex, 1 figure (not included) | null | null | ETH-TH/94-35 | gr-qc astro-ph | null | We analyze the non--Gaussian primordial fluctuations which are inescapably
contributed by scalar fields $\Phi$ with vanishing expectation values,
$\langle\Phi\rangle=0$, present during inflation in addition to the inflaton
field. For simplicity we take $\Phi$ to be non--interacting and minimally
coupled to gravity. $... | [
{
"created": "Wed, 7 Dec 1994 15:36:34 GMT",
"version": "v1"
}
] | 2009-09-25 | [
[
"Muller",
"Harald F.",
""
],
[
"Schmid",
"Christoph",
""
]
] | We analyze the non--Gaussian primordial fluctuations which are inescapably contributed by scalar fields $\Phi$ with vanishing expectation values, $\langle\Phi\rangle=0$, present during inflation in addition to the inflaton field. For simplicity we take $\Phi$ to be non--interacting and minimally coupled to gravity. $\P... |
2109.02424 | Shanika Galaudage | Shanika Galaudage and Colm Talbot and Tushar Nagar and Deepnika Jain
and Eric Thrane and Ilya Mandel | Building better spin models for merging binary black holes: Evidence for
non-spinning and rapidly spinning nearly aligned sub-populations | 13 pages, 6 figures | null | 10.3847/2041-8213/ac2f3c | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Recent work paints a conflicting portrait of the distribution of black hole
spins in merging binaries measured with gravitational waves. Some analyses find
that a significant fraction of merging binaries contain at least one black hole
with a spin tilt $>90^\circ$ with respect to the orbital angular momentum
vector, ... | [
{
"created": "Fri, 3 Sep 2021 02:42:02 GMT",
"version": "v1"
},
{
"created": "Tue, 7 Sep 2021 10:12:54 GMT",
"version": "v2"
},
{
"created": "Sat, 23 Apr 2022 13:26:46 GMT",
"version": "v3"
}
] | 2022-04-26 | [
[
"Galaudage",
"Shanika",
""
],
[
"Talbot",
"Colm",
""
],
[
"Nagar",
"Tushar",
""
],
[
"Jain",
"Deepnika",
""
],
[
"Thrane",
"Eric",
""
],
[
"Mandel",
"Ilya",
""
]
] | Recent work paints a conflicting portrait of the distribution of black hole spins in merging binaries measured with gravitational waves. Some analyses find that a significant fraction of merging binaries contain at least one black hole with a spin tilt $>90^\circ$ with respect to the orbital angular momentum vector, wh... |
1803.02339 | Eric Ling | Piotr T. Chru\'sciel, Gregory J. Galloway, Eric Ling | Weakly trapped surfaces in asymptotically de Sitter spacetimes | 9 pages, 4 figures; v2: figure corrected, references added. Version
to appear in CQG | null | 10.1088/1361-6382/aac30d | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | It is a standard fact that trapped or marginally trapped surfaces are not
visible from conformal infinity, under the usual set of conditions on matter
fields and the conformal completion, provided that the cosmological constant is
non-positive. In this note we show that the situation is more delicate in the
presence ... | [
{
"created": "Tue, 6 Mar 2018 18:55:12 GMT",
"version": "v1"
},
{
"created": "Wed, 9 May 2018 17:32:10 GMT",
"version": "v2"
}
] | 2018-05-10 | [
[
"Chruściel",
"Piotr T.",
""
],
[
"Galloway",
"Gregory J.",
""
],
[
"Ling",
"Eric",
""
]
] | It is a standard fact that trapped or marginally trapped surfaces are not visible from conformal infinity, under the usual set of conditions on matter fields and the conformal completion, provided that the cosmological constant is non-positive. In this note we show that the situation is more delicate in the presence of... |
1707.02873 | Parbati Sahoo | Parbati Sahoo, Raghavender Reddy | LRS Bianchi type-I bulk viscous cosmological models in $f(R,T)$ gravity | 7 pages, 3 figure, This work accepted for publication in Astrophysics
journal with issue 1 for 2018 | Astrophysics, 61 ,1 , 2018, pp. 153-162 | 10.1007/s10511-018-9522-0 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We have studied the locally rotationally symmetric (LRS) Bianchi type-I
cosmological model in $f(R,T)$ gravity ($R$ is the Ricci scalar and $T$ is the
trace of the stress energy tensor) with Bulk viscous fluid as matter content.
The model is constructed for the linear form $f(R,T)=R+2f(T)$. The exact
solution of fiel... | [
{
"created": "Fri, 7 Jul 2017 11:42:33 GMT",
"version": "v1"
},
{
"created": "Thu, 23 Nov 2017 12:03:32 GMT",
"version": "v2"
}
] | 2018-03-29 | [
[
"Sahoo",
"Parbati",
""
],
[
"Reddy",
"Raghavender",
""
]
] | We have studied the locally rotationally symmetric (LRS) Bianchi type-I cosmological model in $f(R,T)$ gravity ($R$ is the Ricci scalar and $T$ is the trace of the stress energy tensor) with Bulk viscous fluid as matter content. The model is constructed for the linear form $f(R,T)=R+2f(T)$. The exact solution of field ... |
gr-qc/0308049 | Ralf Schutzhold | R. Sch\"utzhold and W. G. Unruh | Large-scale non-locality in "doubly special relativity" with an
energy-dependent speed of light | 5 pages RevTeX, several modifications | JETP Lett. 78 (2003) 431-435; Pisma Zh.Eksp.Teor.Fiz. 78 (2003)
899-903 | 10.1134/1.1633311 | null | gr-qc hep-th | null | There are two major alternatives for violating the (usual) Lorentz invariance
at large (Planckian) energies or momenta - either not all inertial frames (in
the Planck regime) are equivalent (e.g., there is an effectively preferred
frame) or the transformations from one frame to another are (non-linearly)
deformed (``... | [
{
"created": "Thu, 14 Aug 2003 22:22:03 GMT",
"version": "v1"
},
{
"created": "Fri, 29 Aug 2003 20:55:12 GMT",
"version": "v2"
}
] | 2009-11-10 | [
[
"Schützhold",
"R.",
""
],
[
"Unruh",
"W. G.",
""
]
] | There are two major alternatives for violating the (usual) Lorentz invariance at large (Planckian) energies or momenta - either not all inertial frames (in the Planck regime) are equivalent (e.g., there is an effectively preferred frame) or the transformations from one frame to another are (non-linearly) deformed (``do... |
2402.12342 | Gustav Uhre Jakobsen | Alessandra Buonanno, Gustav Uhre Jakobsen, Gustav Mogull | Post-Minkowskian Theory Meets the Spinning Effective-One-Body Approach
for Two-Body Scattering | 25 pages, 10 figures, 8 tables, 1 ancillary file | null | null | HU-EP-24/07-RTG | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Effective-one-body (EOB) waveforms employed by the LIGO-Virgo-KAGRA
Collaboration have primarily been developed by resumming the post-Newtonian
expansion of the relativistic two-body problem. Given the recent significant
advancements in post-Minkowskian (PM) theory and gravitational self-force
formalism, there is con... | [
{
"created": "Mon, 19 Feb 2024 18:15:09 GMT",
"version": "v1"
}
] | 2024-02-20 | [
[
"Buonanno",
"Alessandra",
""
],
[
"Jakobsen",
"Gustav Uhre",
""
],
[
"Mogull",
"Gustav",
""
]
] | Effective-one-body (EOB) waveforms employed by the LIGO-Virgo-KAGRA Collaboration have primarily been developed by resumming the post-Newtonian expansion of the relativistic two-body problem. Given the recent significant advancements in post-Minkowskian (PM) theory and gravitational self-force formalism, there is consi... |
2211.05097 | Alisha Marriott-Best | Alisha Marriott-Best | Quantum Cosmology of the Nothing | Submitted as dissertation for MSc | null | null | null | gr-qc hep-th | http://creativecommons.org/licenses/by/4.0/ | Quantum cosmology uses a wave function to model the universe, but finding
solutions for this poses a problem as it is difficult to define the boundary
conditions or identify the correct path for a path integral. We begin the
discussion by going over various proposals and look at how bubble universe
nucleation can be ... | [
{
"created": "Tue, 8 Nov 2022 11:45:58 GMT",
"version": "v1"
}
] | 2022-11-10 | [
[
"Marriott-Best",
"Alisha",
""
]
] | Quantum cosmology uses a wave function to model the universe, but finding solutions for this poses a problem as it is difficult to define the boundary conditions or identify the correct path for a path integral. We begin the discussion by going over various proposals and look at how bubble universe nucleation can be us... |
2106.05479 | Jonathan Luk | Jonathan Luk and Maxime Van de Moortel | Nonlinear interaction of three impulsive gravitational waves II: the
wave estimates | Part II to arXiv:2101.08353; 95 pages, 2 figures; version accepted
for publication | null | null | null | gr-qc math-ph math.AP math.DG math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | This is the second and last paper of a series aimed at solving the local
Cauchy problem for polarized $\mathbb U(1)$ symmetric solutions to the Einstein
vacuum equations featuring the nonlinear interaction of three small amplitude
impulsive gravitational waves. Such solutions are characterized by their three
singular... | [
{
"created": "Thu, 10 Jun 2021 03:34:21 GMT",
"version": "v1"
},
{
"created": "Mon, 27 Mar 2023 04:01:59 GMT",
"version": "v2"
}
] | 2023-03-28 | [
[
"Luk",
"Jonathan",
""
],
[
"Van de Moortel",
"Maxime",
""
]
] | This is the second and last paper of a series aimed at solving the local Cauchy problem for polarized $\mathbb U(1)$ symmetric solutions to the Einstein vacuum equations featuring the nonlinear interaction of three small amplitude impulsive gravitational waves. Such solutions are characterized by their three singular "... |
0808.1039 | Vladimir Khatsymovsky | V.M. Khatsymovsky | Gravity action on discontinuous metrics | 6 pages | null | null | null | gr-qc math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider minisuperspace gravity system described by piecewise flat metric
discontinuous on three-dimensional faces (tetrahedra). There are infinite terms
in the Einstein action. However, starting from proper regularization, these
terms in the exponential of path integral result in pre-exponent factor with
$\delta$... | [
{
"created": "Thu, 7 Aug 2008 14:39:34 GMT",
"version": "v1"
}
] | 2008-10-09 | [
[
"Khatsymovsky",
"V. M.",
""
]
] | We consider minisuperspace gravity system described by piecewise flat metric discontinuous on three-dimensional faces (tetrahedra). There are infinite terms in the Einstein action. However, starting from proper regularization, these terms in the exponential of path integral result in pre-exponent factor with $\delta$-f... |
2109.10022 | Satish Kumar Saravanan | Satish Kumar Saravanan | Spin-induced motion in black hole spacetime | 27 pages, 9 figures | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Based on the covariant hamiltonian formalism, we study the dynamics of
spinning test bodies in the Kerr and Schwarzschild spacetimes. For the first
time, we derive the exact solution of circular orbits in the Kerr plane without
truncating the spin of the particle or black hole. A large class of noncircular
bound orbi... | [
{
"created": "Tue, 21 Sep 2021 08:25:54 GMT",
"version": "v1"
}
] | 2021-09-22 | [
[
"Saravanan",
"Satish Kumar",
""
]
] | Based on the covariant hamiltonian formalism, we study the dynamics of spinning test bodies in the Kerr and Schwarzschild spacetimes. For the first time, we derive the exact solution of circular orbits in the Kerr plane without truncating the spin of the particle or black hole. A large class of noncircular bound orbits... |
2109.13293 | Damianos Iosifidis | Damianos Iosifidis | Quadratic Metric-Affine Gravity: Solving for the Affine-Connection | 14 pages, no figures | null | 10.1140/epjc/s10052-022-10499-3 | null | gr-qc hep-th | http://creativecommons.org/licenses/by/4.0/ | We consider the most general 11 parameter parity even quadratic Metric-Affine
Theory whose action consists of the usual Einstein-Hilbert plus the 11
quadratic terms in torsion, non-metricity as well as their mixing. By following
a certain procedure and using a simple trick we are able to find the unique
solution of t... | [
{
"created": "Mon, 27 Sep 2021 18:29:09 GMT",
"version": "v1"
}
] | 2022-07-13 | [
[
"Iosifidis",
"Damianos",
""
]
] | We consider the most general 11 parameter parity even quadratic Metric-Affine Theory whose action consists of the usual Einstein-Hilbert plus the 11 quadratic terms in torsion, non-metricity as well as their mixing. By following a certain procedure and using a simple trick we are able to find the unique solution of the... |
gr-qc/9702022 | Robert Manuel Wald | Robert M. Wald | Black Holes and Thermodynamics | 26 pages, plain LaTeX; to appear in the proceedings of the Symposium
on Black Holes and Relativistic Stars (in honor of S. Chandrasekhar),
December 14-15, 1996 | null | null | null | gr-qc hep-th | null | We review the remarkable relationship between the laws of black hole
mechanics and the ordinary laws of thermodynamics. It is emphasized that - in
analogy with the laws of thermodynamics - the validity the laws of black hole
mechanics does not appear to depend upon the details of the underlying
dynamical theory (i.e.... | [
{
"created": "Tue, 11 Feb 1997 23:02:27 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Wald",
"Robert M.",
""
]
] | We review the remarkable relationship between the laws of black hole mechanics and the ordinary laws of thermodynamics. It is emphasized that - in analogy with the laws of thermodynamics - the validity the laws of black hole mechanics does not appear to depend upon the details of the underlying dynamical theory (i.e., ... |
gr-qc/0305036 | Karim . A. Malik | Karim A. Malik, Maria Rodriguez-Martinez, and David Langlois | Defining perturbations on submanifolds | 9 pages, 2 figures, Revtex4 | Phys.Rev. D68 (2003) 123517 | 10.1103/PhysRevD.68.123517 | null | gr-qc astro-ph hep-th | null | We study the definition of perturbations in the presence of a submanifold,
like e.g. a brane. In the standard theory of cosmological perturbations, one
compares quantities at the same coordinate points in the non-perturbed and the
perturbed manifolds, identified via a (non-unique) mapping between the two
manifolds. I... | [
{
"created": "Fri, 9 May 2003 16:46:25 GMT",
"version": "v1"
}
] | 2009-11-10 | [
[
"Malik",
"Karim A.",
""
],
[
"Rodriguez-Martinez",
"Maria",
""
],
[
"Langlois",
"David",
""
]
] | We study the definition of perturbations in the presence of a submanifold, like e.g. a brane. In the standard theory of cosmological perturbations, one compares quantities at the same coordinate points in the non-perturbed and the perturbed manifolds, identified via a (non-unique) mapping between the two manifolds. In ... |
2012.14084 | Shyam Das | Shyam Das, Bikash Chandra Paul, Ranjan Sharma | Gravitational collapse of anisotropic stars | 15 pages, 3 figures, Accepted for publication in INJP | null | 10.1007/s12648-020-01931-z | null | gr-qc astro-ph.HE | http://creativecommons.org/licenses/by/4.0/ | We study the gravitational collapse of a spherically symmetric anisotropic
relativistic star within Einstein theory of gravity making use of one of our
recently developed collapsing stellar models [{\it Astrophys. Space Sci.}
{\bf361} 99 (2016)]. The final state of continual gravitational collapse of a
massive star u... | [
{
"created": "Mon, 28 Dec 2020 03:53:00 GMT",
"version": "v1"
}
] | 2022-01-05 | [
[
"Das",
"Shyam",
""
],
[
"Paul",
"Bikash Chandra",
""
],
[
"Sharma",
"Ranjan",
""
]
] | We study the gravitational collapse of a spherically symmetric anisotropic relativistic star within Einstein theory of gravity making use of one of our recently developed collapsing stellar models [{\it Astrophys. Space Sci.} {\bf361} 99 (2016)]. The final state of continual gravitational collapse of a massive star und... |
2304.11616 | Gopi Kant Goswami Dr | Anirudh Pradhan, Gopikant Goswami, Aroonkumar Beesham | Reconstruction of an Observationally Constrained $f(R, T)$ gravity model | 25 pages, 11 figures, 2 tables | International Journal of Geometric Mathods in Modern Physics 2023 | 10.1142/S0219887823501694 | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | In this paper, an attempt is made to construct a
Friedmann-Lemaitre-Robertson-Walker model in $f(R,T)$ gravity with a perfect
fluid that yields acceleration at late times. We take $f(R,T)$ as $R$ + $8\pi
\mu T$. As in the $\Lambda$CDM model, we take the matter to consist of two
components, viz., $\Omega_m$ and $\Omeg... | [
{
"created": "Sun, 23 Apr 2023 11:13:56 GMT",
"version": "v1"
}
] | 2023-04-25 | [
[
"Pradhan",
"Anirudh",
""
],
[
"Goswami",
"Gopikant",
""
],
[
"Beesham",
"Aroonkumar",
""
]
] | In this paper, an attempt is made to construct a Friedmann-Lemaitre-Robertson-Walker model in $f(R,T)$ gravity with a perfect fluid that yields acceleration at late times. We take $f(R,T)$ as $R$ + $8\pi \mu T$. As in the $\Lambda$CDM model, we take the matter to consist of two components, viz., $\Omega_m$ and $\Omega_... |
gr-qc/0001020 | Sergiu Vacaru | Sergiu I. Vacaru | Locally Anisotropic Black Holes in Einstein Gravity | latex209, version 4, misprints corrected | Chapter 4 in: "Clifford and Riemann Finsler Structures in
Geometric Mechanics and Gravity, Selected Works by S. Vacaru, P. Stavrinos,
E. Gaburov and D. Gonta (Geometry Balkan Press, 2006)
http://www.mathem.pub.ro/dgds/mono/va-t.pdf | null | null | gr-qc astro-ph hep-ph hep-th | null | By applying the method of moving frames modelling one and two dimensional
local anisotropies we construct new solutions of Einstein equations on
pseudo-Riemannian spacetimes. The first class of solutions describes
non-trivial deformations of static spherically symmetric black holes to locally
anisotropic ones which h... | [
{
"created": "Sat, 8 Jan 2000 11:12:04 GMT",
"version": "v1"
},
{
"created": "Wed, 12 Jan 2000 13:07:01 GMT",
"version": "v2"
},
{
"created": "Mon, 8 May 2000 11:55:37 GMT",
"version": "v3"
}
] | 2016-08-31 | [
[
"Vacaru",
"Sergiu I.",
""
]
] | By applying the method of moving frames modelling one and two dimensional local anisotropies we construct new solutions of Einstein equations on pseudo-Riemannian spacetimes. The first class of solutions describes non-trivial deformations of static spherically symmetric black holes to locally anisotropic ones which hav... |
2309.05695 | Johanna N. Borissova | Johanna Borissova | Suppression of spacetime singularities in quantum gravity | v1: 10 pages, 3 figures; v2: 12 pages, clarifications & discussions
added, matches version accepted for publication in CQG | null | 10.1088/1361-6382/ad46c0 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate the requirement of suppressing spacetime geometries with a
curvature singularity via destructive interference in the Lorentzian
gravitational path integral as a constraint on the microscopic action for
gravity. Based on simple examples of static spherically symmetric spacetimes,
we demonstrate that com... | [
{
"created": "Mon, 11 Sep 2023 18:00:00 GMT",
"version": "v1"
},
{
"created": "Sat, 4 May 2024 23:02:36 GMT",
"version": "v2"
}
] | 2024-05-07 | [
[
"Borissova",
"Johanna",
""
]
] | We investigate the requirement of suppressing spacetime geometries with a curvature singularity via destructive interference in the Lorentzian gravitational path integral as a constraint on the microscopic action for gravity. Based on simple examples of static spherically symmetric spacetimes, we demonstrate that compl... |
2405.18508 | Rishabh Kumar Singh | Shailesh Kumar, Rishabh Kumar Singh, Abhishek Chowdhuri, Arpan
Bhattacharyya | Exploring waveforms with non-GR deviations for extreme mass-ratio
inspirals | 26 pages, 3 Figures | null | null | null | gr-qc astro-ph.HE hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The fundamental process of detecting and examining the polarization modes of
gravitational waves plays a pivotal role in enhancing our grasp on the precise
mechanisms behind their generation. A thorough investigation is essential for
delving deeper into the essence of gravitational waves and rigorously
evaluating and... | [
{
"created": "Tue, 28 May 2024 18:24:17 GMT",
"version": "v1"
}
] | 2024-05-30 | [
[
"Kumar",
"Shailesh",
""
],
[
"Singh",
"Rishabh Kumar",
""
],
[
"Chowdhuri",
"Abhishek",
""
],
[
"Bhattacharyya",
"Arpan",
""
]
] | The fundamental process of detecting and examining the polarization modes of gravitational waves plays a pivotal role in enhancing our grasp on the precise mechanisms behind their generation. A thorough investigation is essential for delving deeper into the essence of gravitational waves and rigorously evaluating and v... |
1802.09123 | Ismael Delgado Gaspar PhD | Ismael Delgado Gaspar, Juan Carlos Hidalgo, Roberto A. Sussman, Israel
Quiros | Black hole formation from the gravitational collapse of a non-spherical
network of structures | Matches published version. 11 pages, 5 figures. Minor but important
corrections were incorporated | Phys. Rev. D 97, 104029 (2018) | 10.1103/PhysRevD.97.104029 | null | gr-qc astro-ph.GA | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We examine the gravitational collapse and black hole formation of multiple
non--spherical configurations constructed from Szekeres dust models with
positive spatial curvature that smoothly match to a Schwarzschild exterior.
These configurations are made of an almost spherical central core region
surrounded by a netwo... | [
{
"created": "Mon, 26 Feb 2018 01:37:17 GMT",
"version": "v1"
},
{
"created": "Mon, 21 May 2018 16:38:09 GMT",
"version": "v2"
}
] | 2018-05-22 | [
[
"Gaspar",
"Ismael Delgado",
""
],
[
"Hidalgo",
"Juan Carlos",
""
],
[
"Sussman",
"Roberto A.",
""
],
[
"Quiros",
"Israel",
""
]
] | We examine the gravitational collapse and black hole formation of multiple non--spherical configurations constructed from Szekeres dust models with positive spatial curvature that smoothly match to a Schwarzschild exterior. These configurations are made of an almost spherical central core region surrounded by a network... |
1405.0540 | Sergio Ulhoa | S. C. Ulhoa and R. G. G. Amorim | On Teleparallel Quantum Gravity in Schwarzschild Space-Time | Accepted in Advances in High Energy Physics | Advances in High Energy Physics, Volume 2014 (2014), Article ID
812691, 6 pages | 10.1155/2014/812691 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this article we present the quantization process for Schwarzschild
space-time in the context of Teleparallel gravity. In order to achieve such a
goal we use the Weyl formalism that establishes a well defined correspondence
between classical quantities which are realized by functions and quantum ones
which are real... | [
{
"created": "Fri, 2 May 2014 23:34:10 GMT",
"version": "v1"
}
] | 2014-07-18 | [
[
"Ulhoa",
"S. C.",
""
],
[
"Amorim",
"R. G. G.",
""
]
] | In this article we present the quantization process for Schwarzschild space-time in the context of Teleparallel gravity. In order to achieve such a goal we use the Weyl formalism that establishes a well defined correspondence between classical quantities which are realized by functions and quantum ones which are realiz... |
gr-qc/0512085 | Sigbjorn Hervik | A.A. Coley, S. Hervik, W.C. Lim | Tilt and phantom cosmology | 9 pages, v2: more discussion, added references | Phys.Lett. B638 (2006) 310-313 | 10.1016/j.physletb.2006.05.048 | null | gr-qc astro-ph hep-th | null | We show that in tilting perfect fluid cosmological models with an
ultra-radiative equation of state, generically the tilt becomes extreme at late
times and, as the tilt instability sets in, observers moving with the tilting
fluid will experience singular behaviour in which infinite expansion is reached
within a finit... | [
{
"created": "Wed, 14 Dec 2005 14:30:14 GMT",
"version": "v1"
},
{
"created": "Thu, 6 Jul 2006 15:45:58 GMT",
"version": "v2"
}
] | 2009-11-11 | [
[
"Coley",
"A. A.",
""
],
[
"Hervik",
"S.",
""
],
[
"Lim",
"W. C.",
""
]
] | We show that in tilting perfect fluid cosmological models with an ultra-radiative equation of state, generically the tilt becomes extreme at late times and, as the tilt instability sets in, observers moving with the tilting fluid will experience singular behaviour in which infinite expansion is reached within a finite ... |
gr-qc/0107084 | F. Ya. Khalili | F.Ya.Khalili | Frequency-dependent rigidity in large-scale interferometric
gravitational-wave detectors | 11 pages, 6 figures, corrected typos | Phys.Lett. A288 (2001) 251-256 | 10.1016/S0375-9601(01)00550-3 | null | gr-qc | null | Electromagnetic rigidity which exists in large-scale optical resonators if
pumping frequency is detuned from the eigenfrequency of resonator have
sophisticated spectral dependence which allows to obtain sensitivity better
than the Standard Quantum Limits both for the free test mass and the harmonic
oscillator.
| [
{
"created": "Thu, 26 Jul 2001 07:51:44 GMT",
"version": "v1"
},
{
"created": "Mon, 30 Jul 2001 09:44:10 GMT",
"version": "v2"
}
] | 2009-11-07 | [
[
"Khalili",
"F. Ya.",
""
]
] | Electromagnetic rigidity which exists in large-scale optical resonators if pumping frequency is detuned from the eigenfrequency of resonator have sophisticated spectral dependence which allows to obtain sensitivity better than the Standard Quantum Limits both for the free test mass and the harmonic oscillator. |
gr-qc/0210110 | Sabine Hossenfelder | Sabine Hossenfelder, Dominik J. Schwarz, Walter Greiner | Particle production in time-dependent gravitational fields: the
expanding mass shell | 19 pages, 8 figures | Class.Quant.Grav. 20 (2003) 2337-2354 | 10.1088/0264-9381/20/11/325 | null | gr-qc | null | We compute the production of particles from the gravitational field of an
expanding mass shell. Contrary to the situation of Hawking radiation and the
production of cosmological perturbations during cosmological inflation, the
example of an expanding mass shell has no horizon and no singularity. We apply
the method o... | [
{
"created": "Thu, 31 Oct 2002 19:40:52 GMT",
"version": "v1"
}
] | 2009-11-07 | [
[
"Hossenfelder",
"Sabine",
""
],
[
"Schwarz",
"Dominik J.",
""
],
[
"Greiner",
"Walter",
""
]
] | We compute the production of particles from the gravitational field of an expanding mass shell. Contrary to the situation of Hawking radiation and the production of cosmological perturbations during cosmological inflation, the example of an expanding mass shell has no horizon and no singularity. We apply the method of ... |
gr-qc/9509027 | R. R. Caldwell | R. R. Caldwell | On the Evolution of Scalar Metric Perturbations in an Inflationary
Cosmology | uuencoded, compressed postscript, 15 pages including 3 figures | Class.Quant.Grav. 13 (1996) 2437-2448 | 10.1088/0264-9381/13/9/009 | DAMTP-R95/45 | gr-qc astro-ph | null | We further clarify how scalar metric perturbations are amplified in an
inflationary cosmology. We first construct a simple, analytic model of an
inflationary cosmology in which the expansion scale factor evolves continuously
from an inflationary era to a radiation-dominated era. From this model, it is
clear to see ho... | [
{
"created": "Fri, 15 Sep 1995 12:14:25 GMT",
"version": "v1"
}
] | 2009-10-28 | [
[
"Caldwell",
"R. R.",
""
]
] | We further clarify how scalar metric perturbations are amplified in an inflationary cosmology. We first construct a simple, analytic model of an inflationary cosmology in which the expansion scale factor evolves continuously from an inflationary era to a radiation-dominated era. From this model, it is clear to see how ... |
gr-qc/0611054 | Jose Edgar Madriz Aguilar | Jose Edgar Madriz Aguilar and Mauricio Bellini | Inflation from the bang of a white hole induced from a 6D vacuum state | 9 pages, 1 figure Accepted for publication in Physics Letters B | Phys.Lett.B648:19-27,2007 | 10.1016/j.physletb.2007.02.062 | null | gr-qc astro-ph hep-th | null | Using ideas of STM theory, but starting from a 6D vacuum state, we propose an
inflationary model where the universe emerges from the blast of a white hole.
Under this approach, the expansion is affected by a geometrical deformation
induced by the gravitational attraction of the hole, which should be
responsible for t... | [
{
"created": "Wed, 8 Nov 2006 20:41:13 GMT",
"version": "v1"
},
{
"created": "Tue, 30 Jan 2007 14:18:07 GMT",
"version": "v2"
},
{
"created": "Wed, 28 Feb 2007 15:14:29 GMT",
"version": "v3"
}
] | 2008-11-26 | [
[
"Aguilar",
"Jose Edgar Madriz",
""
],
[
"Bellini",
"Mauricio",
""
]
] | Using ideas of STM theory, but starting from a 6D vacuum state, we propose an inflationary model where the universe emerges from the blast of a white hole. Under this approach, the expansion is affected by a geometrical deformation induced by the gravitational attraction of the hole, which should be responsible for the... |
gr-qc/9410041 | Carlos O. Lousto | C.O.Lousto and N.S\'anchez | Scattering Processes at the Planck Scale | 31 pages, TeX, report UAB-FT-353. To appear in the proceedings of the
2nd. Journee Cosmologie, Paris, 2nd-4th June 1994. "Second Paris Cosmology
Colloquium", H.J. de Vega and N. S\'anchez Eds., pp 339-370, World Sci. Pub.
Co., Singapore (1995) | "Second Paris Cosmology Colloquium", World Sci. (1995) | null | null | gr-qc astro-ph hep-th | null | The ultrarelativistic limit of the Kerr - Newman geometry is studied in
detail. We find the gravitational shock wave background associated with this
limit. We study the scattering of scalar fields in the gravitational shock wave
geometries and compare this with the scattering by ultrarelativistic extended
sources and... | [
{
"created": "Fri, 28 Oct 1994 16:45:09 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Lousto",
"C. O.",
""
],
[
"Sánchez",
"N.",
""
]
] | The ultrarelativistic limit of the Kerr - Newman geometry is studied in detail. We find the gravitational shock wave background associated with this limit. We study the scattering of scalar fields in the gravitational shock wave geometries and compare this with the scattering by ultrarelativistic extended sources and w... |
0810.1074 | Ramon Herrera | Ramon Herrera | Tachyon-Chaplygin inflation on the brane | 15 pages, 3 figures, Accepted for publication in General Relativity
and Gravitation | Gen.Rel.Grav.41:1259-1271,2009 | 10.1007/s10714-008-0703-8 | null | gr-qc astro-ph hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Tachyon-Brane inflationary universe model in the context of a Chaplygin gas
equation of state is studied. General conditions for this model to be
realizable are discussed. In the high-energy limit and by using an exponential
potential we describe in great details the characteristic of this model. Recent
observational... | [
{
"created": "Mon, 6 Oct 2008 22:47:00 GMT",
"version": "v1"
}
] | 2009-11-18 | [
[
"Herrera",
"Ramon",
""
]
] | Tachyon-Brane inflationary universe model in the context of a Chaplygin gas equation of state is studied. General conditions for this model to be realizable are discussed. In the high-energy limit and by using an exponential potential we describe in great details the characteristic of this model. Recent observational d... |
1406.6057 | Francesco Pannarale | Francesco Pannarale and Frank Ohme | Prospects for joint gravitational-wave and electromagnetic observations
of neutron-star--black-hole coalescing binaries | 5 pages, 3 figures; matches published version | ApJ, 791, L7 (2014) | 10.1088/2041-8205/791/1/L7 | LIGO-P1400096 | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Coalescing neutron-star-black-hole (NS-BH) binaries are a promising source of
gravitational-wave (GW) signals detectable with large-scale laser
interferometers such as Advanced LIGO and Virgo. They are also one of the main
short gamma-ray burst (SGRB) progenitor candidates. If the BH tidally disrupts
its companion, a... | [
{
"created": "Mon, 23 Jun 2014 20:00:31 GMT",
"version": "v1"
},
{
"created": "Thu, 24 Jul 2014 08:21:23 GMT",
"version": "v2"
}
] | 2014-07-25 | [
[
"Pannarale",
"Francesco",
""
],
[
"Ohme",
"Frank",
""
]
] | Coalescing neutron-star-black-hole (NS-BH) binaries are a promising source of gravitational-wave (GW) signals detectable with large-scale laser interferometers such as Advanced LIGO and Virgo. They are also one of the main short gamma-ray burst (SGRB) progenitor candidates. If the BH tidally disrupts its companion, an ... |
gr-qc/0108015 | Massimo Giovannini | Danilo Babusci (INFN, Frascati) and Massimo Giovannini (Institute for
Theoretical Physics, Lausanne University) | Response of VIRGO detectors to pre-big-bang gravitons | 23 pages in Latex style | Int.J.Mod.Phys. D10 (2001) 477-500 | 10.1142/S0218271801001165 | International Journal of Modern Physics D, Vol. 10, No. 4 (2001)
477-500 | gr-qc astro-ph hep-ph | null | The sensitivity achievable by a pair of VIRGO detectors to stochastic and
isotropic gravitational wave backgrounds produced in pre-big-bang models is
discussed in view of the development of a second VIRGO interferometer. We
describe a semi-analytical technique allowing to compute the signal-to-noise
ratio for (monoto... | [
{
"created": "Sat, 4 Aug 2001 16:51:03 GMT",
"version": "v1"
}
] | 2009-11-07 | [
[
"Babusci",
"Danilo",
"",
"INFN, Frascati"
],
[
"Giovannini",
"Massimo",
"",
"Institute for\n Theoretical Physics, Lausanne University"
]
] | The sensitivity achievable by a pair of VIRGO detectors to stochastic and isotropic gravitational wave backgrounds produced in pre-big-bang models is discussed in view of the development of a second VIRGO interferometer. We describe a semi-analytical technique allowing to compute the signal-to-noise ratio for (monotoni... |
gr-qc/9209006 | null | Boro Grubisic and Vincent Moncrief | Asymptotic Behavior of the $T^3 \times R$ Gowdy Spacetimes | 30 pages | Phys.Rev. D47 (1993) 2371-2382 | 10.1103/PhysRevD.47.2371 | null | gr-qc | null | We present new evidence in support of the Penrose's strong cosmic censorship
conjecture in the class of Gowdy spacetimes with $T^3$ spatial topology.
Solving Einstein's equations perturbatively to all orders we show that
asymptotically close to the boundary of the maximal Cauchy development the
dominant term in the e... | [
{
"created": "Wed, 16 Sep 1992 03:31:25 GMT",
"version": "v1"
}
] | 2009-10-22 | [
[
"Grubisic",
"Boro",
""
],
[
"Moncrief",
"Vincent",
""
]
] | We present new evidence in support of the Penrose's strong cosmic censorship conjecture in the class of Gowdy spacetimes with $T^3$ spatial topology. Solving Einstein's equations perturbatively to all orders we show that asymptotically close to the boundary of the maximal Cauchy development the dominant term in the exp... |
gr-qc/0501011 | Christian Koenigsdoerffer | Christian Koenigsdoerffer, Achamveedu Gopakumar | Post-Newtonian accurate parametric solution to the dynamics of spinning
compact binaries in eccentric orbits: The leading order spin-orbit
interaction | 18 pages, accepted by Phys. Rev. D | Phys.Rev. D71 (2005) 024039 | 10.1103/PhysRevD.71.024039 | null | gr-qc | null | We derive Keplerian-type parametrization for the solution of post-Newtonian
(PN) accurate conservative dynamics of spinning compact binaries moving in
eccentric orbits. The PN accurate dynamics that we consider consists of the
third post-Newtonian accurate conservative orbital dynamics influenced by the
leading order... | [
{
"created": "Wed, 5 Jan 2005 13:28:06 GMT",
"version": "v1"
}
] | 2009-11-11 | [
[
"Koenigsdoerffer",
"Christian",
""
],
[
"Gopakumar",
"Achamveedu",
""
]
] | We derive Keplerian-type parametrization for the solution of post-Newtonian (PN) accurate conservative dynamics of spinning compact binaries moving in eccentric orbits. The PN accurate dynamics that we consider consists of the third post-Newtonian accurate conservative orbital dynamics influenced by the leading order s... |
1409.1523 | Mariusz Dabrowski P. | Adam Balcerzak, Mariusz P. Dabrowski, Tomasz Denkiewicz, David
Polarski, Denis Puy | A critical assessment of some inhomogeneous pressure Stephani models | REVTEX4-1, 12 pages, 6 figures, explanatory material added, version
to appear in PRD, conclusions and results unchanged | Phys. Rev. D 91, 083506 (2015) | 10.1103/PhysRevD.91.083506 | null | gr-qc astro-ph.CO hep-th | http://creativecommons.org/licenses/by/3.0/ | We consider spherically symmetric inhomogeneous pressure Stephani universes,
the center of symmetry being our location. The main feature of these models is
that comoving observers do not follow geodesics. In particular, comoving
perfect fluids have necessarily a radially dependent pressure. We consider a
subclass of ... | [
{
"created": "Tue, 2 Sep 2014 21:55:27 GMT",
"version": "v1"
},
{
"created": "Tue, 30 Dec 2014 00:12:02 GMT",
"version": "v2"
},
{
"created": "Sat, 14 Mar 2015 13:55:45 GMT",
"version": "v3"
}
] | 2015-04-08 | [
[
"Balcerzak",
"Adam",
""
],
[
"Dabrowski",
"Mariusz P.",
""
],
[
"Denkiewicz",
"Tomasz",
""
],
[
"Polarski",
"David",
""
],
[
"Puy",
"Denis",
""
]
] | We consider spherically symmetric inhomogeneous pressure Stephani universes, the center of symmetry being our location. The main feature of these models is that comoving observers do not follow geodesics. In particular, comoving perfect fluids have necessarily a radially dependent pressure. We consider a subclass of th... |
gr-qc/0608117 | Pablo Laguna | Pablo Laguna | Numerical Analysis of the Big Bounce in Loop Quantum Cosmology | 5 pages, 3 figures, new title, replaced with version accepted for
publication | Phys.Rev.D75:024033,2007 | 10.1103/PhysRevD.75.024033 | null | gr-qc astro-ph | null | Loop quantum cosmology homogeneous models with a massless scalar field show
that the big-bang singularity can be replaced by a big quantum bounce. To gain
further insight on the nature of this bounce, we study the semi-discrete loop
quantum gravity Hamiltonian constraint equation from the point of view of
numerical a... | [
{
"created": "Mon, 28 Aug 2006 11:48:38 GMT",
"version": "v1"
},
{
"created": "Mon, 29 Jan 2007 14:27:49 GMT",
"version": "v2"
}
] | 2008-11-26 | [
[
"Laguna",
"Pablo",
""
]
] | Loop quantum cosmology homogeneous models with a massless scalar field show that the big-bang singularity can be replaced by a big quantum bounce. To gain further insight on the nature of this bounce, we study the semi-discrete loop quantum gravity Hamiltonian constraint equation from the point of view of numerical ana... |
2201.06988 | Aurelien Barrau | Aur\'elien Barrau | The holographic space-time and black hole remnants as dark matter | null | null | 10.1016/j.physletb.2022.137061 | null | gr-qc astro-ph.CO hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The holographic space-time approach to inflation provides a well defined and
self-contained framework to study the early universe. Based on a quasi-local
quantum gravity theory generalizing string theory beyond AdS backgrounds, it
addresses fundamental questions like the arrow of time and the entropy of the
initial c... | [
{
"created": "Tue, 18 Jan 2022 13:49:41 GMT",
"version": "v1"
}
] | 2022-04-20 | [
[
"Barrau",
"Aurélien",
""
]
] | The holographic space-time approach to inflation provides a well defined and self-contained framework to study the early universe. Based on a quasi-local quantum gravity theory generalizing string theory beyond AdS backgrounds, it addresses fundamental questions like the arrow of time and the entropy of the initial cos... |
1809.00920 | Carsten van de Bruck | Carsten van de Bruck and Chris Longden | Einstein-Gauss-Bonnet gravity with extra dimensions | 23 pages, 1 figure | null | null | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider a theory of modified gravity possessing d extra spatial
dimensions with a maximally symmetric metric and a scale factor, whose
(4+d)-dimensional gravitational action contains terms proportional to quadratic
curvature scalars. Constructing the 4D effective field theory by dimensional
reduction, we find tha... | [
{
"created": "Tue, 4 Sep 2018 12:36:09 GMT",
"version": "v1"
}
] | 2018-09-05 | [
[
"van de Bruck",
"Carsten",
""
],
[
"Longden",
"Chris",
""
]
] | We consider a theory of modified gravity possessing d extra spatial dimensions with a maximally symmetric metric and a scale factor, whose (4+d)-dimensional gravitational action contains terms proportional to quadratic curvature scalars. Constructing the 4D effective field theory by dimensional reduction, we find that ... |
2211.00616 | Gabriele Benomio | Gabriele Benomio | A new gauge for gravitational perturbations of Kerr spacetimes II: The
linear stability of Schwarzschild revisited | 50 pages | null | null | null | gr-qc math-ph math.AP math.DG math.MP | http://creativecommons.org/publicdomain/zero/1.0/ | We present a new proof of linear stability of the Schwarzschild solution to
gravitational perturbations. Our approach employs the system of linearised
gravity in the new geometric gauge of \cite{benomio_kerr}, specialised to the
$|a|=0$ case. The proof fundamentally relies on the novel structure of the
transport equa... | [
{
"created": "Tue, 1 Nov 2022 17:31:21 GMT",
"version": "v1"
}
] | 2022-11-02 | [
[
"Benomio",
"Gabriele",
""
]
] | We present a new proof of linear stability of the Schwarzschild solution to gravitational perturbations. Our approach employs the system of linearised gravity in the new geometric gauge of \cite{benomio_kerr}, specialised to the $|a|=0$ case. The proof fundamentally relies on the novel structure of the transport equati... |
1701.00796 | Tahereh Azizi | Tahereh Azizi and Miysam Gorjizadeh | Energy conditions in f(T) gravity with higher-derivative torsion terms | null | null | 10.1209/0295-5075/117/60003 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the energy conditions in the framework of the modi- fied gravity
with higher-derivative torsional terms in the action. We discuss the viability
of the model by studying the energy conditions in terms of the cosmographical
parameters like Hubble, deceleration, jerk, snap and lerk parameters. In
particular, We... | [
{
"created": "Tue, 3 Jan 2017 19:37:29 GMT",
"version": "v1"
}
] | 2017-06-07 | [
[
"Azizi",
"Tahereh",
""
],
[
"Gorjizadeh",
"Miysam",
""
]
] | We study the energy conditions in the framework of the modi- fied gravity with higher-derivative torsional terms in the action. We discuss the viability of the model by studying the energy conditions in terms of the cosmographical parameters like Hubble, deceleration, jerk, snap and lerk parameters. In particular, We c... |
1307.3933 | Dirk Puetzfeld | Dirk Puetzfeld, Yuri N. Obukhov | Unraveling gravity beyond Einstein with extended test bodies | 4 pages, 2 figures, to appear in Phys. Lett. A | Physics Letters A 377 (2013) 2447 | 10.1016/j.physleta.2013.07.024 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The motion of test bodies in gravity is tightly linked to the conservation
laws. This well-known fact in the context of General Relativity is also valid
for gravitational theories which go beyond Einstein's theory. Here we derive
the equations of motion for test bodies for a very large class of gravitational
theories... | [
{
"created": "Mon, 15 Jul 2013 13:35:35 GMT",
"version": "v1"
}
] | 2013-09-09 | [
[
"Puetzfeld",
"Dirk",
""
],
[
"Obukhov",
"Yuri N.",
""
]
] | The motion of test bodies in gravity is tightly linked to the conservation laws. This well-known fact in the context of General Relativity is also valid for gravitational theories which go beyond Einstein's theory. Here we derive the equations of motion for test bodies for a very large class of gravitational theories w... |
1408.3446 | Bruno Carneiro da Cunha | Nicol\'as Avil\'an, Andr\'es F. Reyes-Lega and Bruno Carneiro da Cunha | Coupling the Sorkin-Johnston State to Gravity | 8 pages, 1 figure. RevTeX 4.1 | Phys. Rev. D 90, 084036 (2014) | 10.1103/PhysRevD.90.084036 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider the dynamics of the Sorkin-Johnston (SJ) state for a massless
scalar field in two dimensions. We conduct a study of the renormalized
stress-tensor by a subtraction procedure, and compare the results with those of
the conformal vacuum, with an important contribution from correction term. We
find a large tr... | [
{
"created": "Fri, 15 Aug 2014 00:03:13 GMT",
"version": "v1"
}
] | 2014-10-29 | [
[
"Avilán",
"Nicolás",
""
],
[
"Reyes-Lega",
"Andrés F.",
""
],
[
"da Cunha",
"Bruno Carneiro",
""
]
] | We consider the dynamics of the Sorkin-Johnston (SJ) state for a massless scalar field in two dimensions. We conduct a study of the renormalized stress-tensor by a subtraction procedure, and compare the results with those of the conformal vacuum, with an important contribution from correction term. We find a large trac... |
1209.3441 | Helgi Freyr R\'unarsson | Helgi Freyr R\'unarsson | Conformal isometry of the lukewarm Reissner-Nordstr\"om-de Sitter
spacetime | null | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | It is known that the extremal Reissner-Nordstr\"om black hole possesses a
discrete conformal isometry that exchanges the black hole horizon with
infinity. It is also known that the Reissner-Nordstr\"om-de Sitter spacetime
posseses a similar discrete conformal isometry which exchanges the event
horizon of the black ho... | [
{
"created": "Sat, 15 Sep 2012 21:44:32 GMT",
"version": "v1"
}
] | 2012-09-18 | [
[
"Rúnarsson",
"Helgi Freyr",
""
]
] | It is known that the extremal Reissner-Nordstr\"om black hole possesses a discrete conformal isometry that exchanges the black hole horizon with infinity. It is also known that the Reissner-Nordstr\"om-de Sitter spacetime posseses a similar discrete conformal isometry which exchanges the event horizon of the black hole... |
gr-qc/9705062 | Vladimir | V.I. Tkach and J.J. Rosales | Supersymmetric Action for FRW Model with Complex Matter Field | 11 pages, Latex | null | null | null | gr-qc | null | On the basis of the local n=2 supersymmetry we construct the supersymmetric
action for a set of complex scalar supermultiplets in the FRW model. This
action corresponds to the dilaton-axion and chiral components of supergravity
theory.
| [
{
"created": "Thu, 22 May 1997 18:15:52 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Tkach",
"V. I.",
""
],
[
"Rosales",
"J. J.",
""
]
] | On the basis of the local n=2 supersymmetry we construct the supersymmetric action for a set of complex scalar supermultiplets in the FRW model. This action corresponds to the dilaton-axion and chiral components of supergravity theory. |
2403.02415 | Matthias Koschnitzke | Mateja Bo\v{s}kovi\'c, Matthias Koschnitzke, Rafael A. Porto | Signatures of ultralight bosons in the orbital eccentricity of binary
black holes | 5 pages + 9 pages appendices and references, 8 figures | null | null | DESY-24-030 | gr-qc astro-ph.CO astro-ph.HE hep-ph hep-th | http://creativecommons.org/licenses/by/4.0/ | We show that the existence of clouds of ultralight particles surrounding
black holes during their cosmological history as members of a binary system can
leave a measurable imprint on the distribution of masses and orbital
eccentricities observable with future gravitational-wave detectors. Notably, we
find that for no... | [
{
"created": "Mon, 4 Mar 2024 19:10:10 GMT",
"version": "v1"
}
] | 2024-03-06 | [
[
"Bošković",
"Mateja",
""
],
[
"Koschnitzke",
"Matthias",
""
],
[
"Porto",
"Rafael A.",
""
]
] | We show that the existence of clouds of ultralight particles surrounding black holes during their cosmological history as members of a binary system can leave a measurable imprint on the distribution of masses and orbital eccentricities observable with future gravitational-wave detectors. Notably, we find that for nonp... |
0905.1243 | Lars Andersson | Lars Andersson (AEI and UM) and Berndt G. Schmidt (AEI) | Static self-gravitating many-body systems in Einstein gravity | 15 pages | Class.Quant.Grav.26:165007,2009 | 10.1088/0264-9381/26/16/165007 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider the problem of constructing static, elastic, many-body systems in
Einstein gravity. The solutions constructed are deformations of static
many-body configurations in Newtonian gravity. No symmetry assumptions are
made.
| [
{
"created": "Fri, 8 May 2009 12:42:57 GMT",
"version": "v1"
}
] | 2009-09-28 | [
[
"Andersson",
"Lars",
"",
"AEI and UM"
],
[
"Schmidt",
"Berndt G.",
"",
"AEI"
]
] | We consider the problem of constructing static, elastic, many-body systems in Einstein gravity. The solutions constructed are deformations of static many-body configurations in Newtonian gravity. No symmetry assumptions are made. |
gr-qc/9303001 | Robert Brandenberger | R. Brandenberger (Brown), V. Mukhanov (ETH Zuerich) and A. Sornborger
(Brown) | A Cosmological Theory without Singularities | 25 pages, 11 figures (available as hard copies from the authors),
uses phyzzx, BROWN-HET-891 | Phys.Rev. D48 (1993) 1629-1642 | 10.1103/PhysRevD.48.1629 | null | gr-qc astro-ph hep-th | null | A theory of gravitation is constructed in which all homogeneous and isotropic
solutions are nonsingular, and in which all curvature invariants are bounded.
All solutions for which curvature invariants approach their limiting values
approach de Sitter space. The action for this theory is obtained by a higher
derivativ... | [
{
"created": "Mon, 1 Mar 1993 20:27:54 GMT",
"version": "v1"
}
] | 2009-10-22 | [
[
"Brandenberger",
"R.",
"",
"Brown"
],
[
"Mukhanov",
"V.",
"",
"ETH Zuerich"
],
[
"Sornborger",
"A.",
"",
"Brown"
]
] | A theory of gravitation is constructed in which all homogeneous and isotropic solutions are nonsingular, and in which all curvature invariants are bounded. All solutions for which curvature invariants approach their limiting values approach de Sitter space. The action for this theory is obtained by a higher derivative ... |
2309.03991 | Nikolaos Stergioulas | Ioannis Liodis, Evaggelos Smirniotis, Nikolaos Stergioulas | A neural-network-based surrogate model for the properties of neutron
stars in 4D Einstein-Gauss-Bonnet gravity | 12 pages, 8 figures | null | null | null | gr-qc astro-ph.HE astro-ph.IM | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Machine learning and artificial neural networks (ANNs) have increasingly
become integral to data analysis research in astrophysics due to the growing
demand for fast calculations resulting from the abundance of observational
data. Simultaneously, neutron stars and black holes have been extensively
examined within mod... | [
{
"created": "Thu, 7 Sep 2023 19:47:11 GMT",
"version": "v1"
}
] | 2023-09-11 | [
[
"Liodis",
"Ioannis",
""
],
[
"Smirniotis",
"Evaggelos",
""
],
[
"Stergioulas",
"Nikolaos",
""
]
] | Machine learning and artificial neural networks (ANNs) have increasingly become integral to data analysis research in astrophysics due to the growing demand for fast calculations resulting from the abundance of observational data. Simultaneously, neutron stars and black holes have been extensively examined within modif... |
1902.08323 | Paul Chesler | Paul M. Chesler, Ramesh Narayan and Erik Curiel | Singularities in Reissner-Nordstr\"om black holes | 17 pages, 3 figures, clarifications and an appendix with numerics
added, published version | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study black holes produced by the collapse of a spherically symmetric
charged scalar field in asymptotically flat space. We employ a late time
expansion and show decaying fluxes of radiation through the event horizon imply
the black hole must contain a null singularity on the Cauchy horizon and a
central spacelike... | [
{
"created": "Fri, 22 Feb 2019 00:49:56 GMT",
"version": "v1"
},
{
"created": "Fri, 29 Nov 2019 20:40:41 GMT",
"version": "v2"
}
] | 2019-12-03 | [
[
"Chesler",
"Paul M.",
""
],
[
"Narayan",
"Ramesh",
""
],
[
"Curiel",
"Erik",
""
]
] | We study black holes produced by the collapse of a spherically symmetric charged scalar field in asymptotically flat space. We employ a late time expansion and show decaying fluxes of radiation through the event horizon imply the black hole must contain a null singularity on the Cauchy horizon and a central spacelike s... |
gr-qc/9704076 | N. K. Dadhich | Naresh Dadhich and K. Narayan | An ansatz for spacetimes of zero gravitational mass : global monopoles
and textures | 9 pages, LaTeX version | Gen.Rel.Grav. 30 (1998) 1133 | 10.1023/A:1026660907760 | IUCAA-32/97 | gr-qc | null | We propose a geometric ansatz, a restriction on Euclidean / Minkowski
distance in the embedding space being propotional to distance in the embedded
space, to generate spacetimes with vanishing gravitational mass ($R_{ik} u^i
u^k = 0, u_i u^i = 1 $). It turns out that these spacetimes can represent
global monopoles an... | [
{
"created": "Mon, 28 Apr 1997 11:30:12 GMT",
"version": "v1"
}
] | 2015-06-25 | [
[
"Dadhich",
"Naresh",
""
],
[
"Narayan",
"K.",
""
]
] | We propose a geometric ansatz, a restriction on Euclidean / Minkowski distance in the embedding space being propotional to distance in the embedded space, to generate spacetimes with vanishing gravitational mass ($R_{ik} u^i u^k = 0, u_i u^i = 1 $). It turns out that these spacetimes can represent global monopoles and ... |
gr-qc/0309082 | Burkhard Kleihaus | Burkhard Kleihaus, Jutta Kunz, Francisco Navarro-L\'erida | Stationary Black Holes with Static and Counterrotating Horizons | 4 pages, 6 figures | Phys.Rev.D69:081501,2004 | 10.1103/PhysRevD.69.081501 | null | gr-qc | null | We show that rotating dyonic black holes with static and counterrotating
horizon exist in Einstein-Maxwell-dilaton theory when the dilaton coupling
constant exceeds the Kaluza-Klein value. The black holes with static horizon
bifurcate from the static black holes. Their mass decreases with increasing
angular momentum,... | [
{
"created": "Wed, 17 Sep 2003 12:45:25 GMT",
"version": "v1"
}
] | 2010-11-19 | [
[
"Kleihaus",
"Burkhard",
""
],
[
"Kunz",
"Jutta",
""
],
[
"Navarro-Lérida",
"Francisco",
""
]
] | We show that rotating dyonic black holes with static and counterrotating horizon exist in Einstein-Maxwell-dilaton theory when the dilaton coupling constant exceeds the Kaluza-Klein value. The black holes with static horizon bifurcate from the static black holes. Their mass decreases with increasing angular momentum, t... |
1009.5189 | Georgios Kraniotis | G. V. Kraniotis | Precise analytic treatment of Kerr and Kerr-(anti) de Sitter black holes
as gravitational lenses | 42 pages, 4 figures | Class.Quant.Grav.28:085021,2011 | 10.1088/0264-9381/28/8/085021 | null | gr-qc astro-ph.GA | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The null geodesic equations that describe motion of photons in Kerr spacetime
are solved exactly in the presence of the cosmological constant $\Lambda$. The
exact solution for the deflection angle for generic light orbits (i.e.
non-polar, non-equatorial) is calculated in terms of the generalized
hypergeometric functi... | [
{
"created": "Mon, 27 Sep 2010 08:48:25 GMT",
"version": "v1"
}
] | 2011-04-08 | [
[
"Kraniotis",
"G. V.",
""
]
] | The null geodesic equations that describe motion of photons in Kerr spacetime are solved exactly in the presence of the cosmological constant $\Lambda$. The exact solution for the deflection angle for generic light orbits (i.e. non-polar, non-equatorial) is calculated in terms of the generalized hypergeometric function... |
1108.0060 | Rodrigo P. Macedo | Jos\'e Luis Jaramillo and Rodrigo P. Macedo and Philipp Moesta and
Luciano Rezzolla | Black-hole horizons as probes of black-hole dynamics I: post-merger
recoil in head-on collisions | final version published on PRD | Phys. Rev. D 85, 084030 (2012) | 10.1103/PhysRevD.85.084030 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The understanding of strong-field dynamics near black-hole horizons is a
long-standing and challenging prob- lem in general relativity. Recent advances
in numerical relativity and in the geometric characterization of black- hole
horizons open new avenues into the problem. In this first paper in a series of
two, we fo... | [
{
"created": "Sat, 30 Jul 2011 11:24:31 GMT",
"version": "v1"
},
{
"created": "Sat, 5 May 2012 13:38:17 GMT",
"version": "v2"
}
] | 2012-05-08 | [
[
"Jaramillo",
"José Luis",
""
],
[
"Macedo",
"Rodrigo P.",
""
],
[
"Moesta",
"Philipp",
""
],
[
"Rezzolla",
"Luciano",
""
]
] | The understanding of strong-field dynamics near black-hole horizons is a long-standing and challenging prob- lem in general relativity. Recent advances in numerical relativity and in the geometric characterization of black- hole horizons open new avenues into the problem. In this first paper in a series of two, we focu... |
1503.00920 | Angelo Tartaglia | Angelo Tartaglia | Testing General Relativity | The paper will appear on Proceedings of Science: Gran Sasso Summer
Institute 2014 | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | This lecture will present a review of the past and present tests of the
General Relativity theory. The essentials of the theory will be recalled and
the measurable effects will be listed and analyzed. The main historical
confirmations of General Relativity will be described. Then, the present
situation will be review... | [
{
"created": "Tue, 3 Mar 2015 12:44:02 GMT",
"version": "v1"
}
] | 2015-03-04 | [
[
"Tartaglia",
"Angelo",
""
]
] | This lecture will present a review of the past and present tests of the General Relativity theory. The essentials of the theory will be recalled and the measurable effects will be listed and analyzed. The main historical confirmations of General Relativity will be described. Then, the present situation will be reviewed... |
2201.08726 | Geanderson Carvalho | G.A. Carvalho, R. Lobato, P.H.R.S. Moraes, D. Deb and M. Malheiro | Quark stars with 2.6 $M_\odot$ in a non-minimal geometry-matter coupling
theory of gravity | null | null | 10.1140/epjc/s10052-022-11058-6 | null | gr-qc astro-ph.HE astro-ph.SR | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | This work analyses the hydrostatic equilibrium configurations of strange
stars in a non-minimal geometry-matter coupling (GMC) theory of gravity. Those
stars are made of strange quark matter, whose distribution is governed by the
MIT equation of state. The non-minimal GMC theory is described by the following
gravitat... | [
{
"created": "Fri, 21 Jan 2022 14:43:54 GMT",
"version": "v1"
},
{
"created": "Thu, 15 Sep 2022 14:13:45 GMT",
"version": "v2"
}
] | 2022-12-21 | [
[
"Carvalho",
"G. A.",
""
],
[
"Lobato",
"R.",
""
],
[
"Moraes",
"P. H. R. S.",
""
],
[
"Deb",
"D.",
""
],
[
"Malheiro",
"M.",
""
]
] | This work analyses the hydrostatic equilibrium configurations of strange stars in a non-minimal geometry-matter coupling (GMC) theory of gravity. Those stars are made of strange quark matter, whose distribution is governed by the MIT equation of state. The non-minimal GMC theory is described by the following gravitatio... |
gr-qc/9511064 | Ulf Nilsson | Ulf Nilsson, Claes Uggla | Spatially self-similar locally rotationally symmetric perfect fluid
models | 27 pages, pictures available at
ftp://vanosf.physto.se/pub/figures/ssslrs.tar.gz | Class.Quant.Grav. 13 (1996) 1601-1622 | 10.1088/0264-9381/13/6/024 | null | gr-qc | null | Einstein's field equations for spatially self-similar locally rotationally
symmetric perfect fluid models are investigated. The field equations are
rewritten as a first order system of autonomous ordinary differential
equations. Dimensionless variables are chosen in such a way that the number of
equations in the coup... | [
{
"created": "Fri, 24 Nov 1995 09:00:49 GMT",
"version": "v1"
}
] | 2009-10-28 | [
[
"Nilsson",
"Ulf",
""
],
[
"Uggla",
"Claes",
""
]
] | Einstein's field equations for spatially self-similar locally rotationally symmetric perfect fluid models are investigated. The field equations are rewritten as a first order system of autonomous ordinary differential equations. Dimensionless variables are chosen in such a way that the number of equations in the couple... |
1806.02533 | Richard Woodard | Z. H. Liao (NCKU), S. P. Miao (NCKU) and R. P. Woodard (Florida) | Cosmological Coleman-Weinberg Potentials and Inflation | 11 pages, 3 figures, uses LaTeX2e Version 2 extensively revised for
publication, contains a new section connecting reheating and fine tuning and
an extended discussion of the late time de Sitter phase approached by all
fermion models | Phys. Rev. D 99, 103522 (2019) | 10.1103/PhysRevD.99.103522 | UFIFT-QG-18-04 | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider an additional fine-tuning problem which afflicts scalar-driven
models of inflation. The problem is that successful reheating requires the
inflaton be coupled to ordinary matter, and quantum fluctuations of this matter
induces Coleman-Weinberg potentials which are not Planck-suppressed. Unlike the
flat spa... | [
{
"created": "Thu, 7 Jun 2018 06:47:42 GMT",
"version": "v1"
},
{
"created": "Tue, 21 May 2019 04:24:11 GMT",
"version": "v2"
}
] | 2019-05-22 | [
[
"Liao",
"Z. H.",
"",
"NCKU"
],
[
"Miao",
"S. P.",
"",
"NCKU"
],
[
"Woodard",
"R. P.",
"",
"Florida"
]
] | We consider an additional fine-tuning problem which afflicts scalar-driven models of inflation. The problem is that successful reheating requires the inflaton be coupled to ordinary matter, and quantum fluctuations of this matter induces Coleman-Weinberg potentials which are not Planck-suppressed. Unlike the flat space... |
gr-qc/9606038 | Daniel Sudarsky | Marcelo Salgado, Daniel Sudarsky, and Hernando Quevedo | Galactic periodicity and the oscillating G model | Latex file 29 pages with no figures. Please contact M.Salgado for
figures. A more careful study of the model appears in gr-qc/9606039 | Phys.Rev. D53 (1996) 6771-6783 | 10.1103/PhysRevD.53.6771 | null | gr-qc | null | We consider the model involving the oscillation of the effective
gravitational constant that has been put forward in an attempt to reconcile the
observed periodicity in the galaxy number distribution with the standard
cosmological models. This model involves a highly nonlinear dynamics which we
analyze numerically. W... | [
{
"created": "Fri, 14 Jun 1996 23:01:18 GMT",
"version": "v1"
}
] | 2009-10-28 | [
[
"Salgado",
"Marcelo",
""
],
[
"Sudarsky",
"Daniel",
""
],
[
"Quevedo",
"Hernando",
""
]
] | We consider the model involving the oscillation of the effective gravitational constant that has been put forward in an attempt to reconcile the observed periodicity in the galaxy number distribution with the standard cosmological models. This model involves a highly nonlinear dynamics which we analyze numerically. We ... |
gr-qc/9511063 | Rafael D. Sorkin | Rafael D. Sorkin (Syracuse University and UNAM) | A Specimen of Theory Construction from Quantum Gravity | 16 pages, plainTeX. Figures not included but available on request
from the Author. To be published in: "The Creation of Ideas in Physics", ed.
Jarrett Leplin, (Kluwer Academic Publishers, Dordrecht, 1995) | in The Creation of Ideas in Physics: Studies for a Methodology of
Theory Construction (Proceedings of the Thirteenth Annual Symposium in
Philosophy, held Greensboro, North Carolina, March, 1989) (Number 55 in the
University of Western Ontario Series in Philosophy of Science) edited by
J.~Leplin, pp. 167-179 (Kl... | null | null | gr-qc hep-th | null | I describe the history of my attempts to arrive at a discrete substratum
underlying the spacetime manifold, culminating in the hypothesis that the basic
structure has the form of a partial-order (i.e. that it is a causal set).
| [
{
"created": "Thu, 23 Nov 1995 08:43:21 GMT",
"version": "v1"
}
] | 2009-09-25 | [
[
"Sorkin",
"Rafael D.",
"",
"Syracuse University and UNAM"
]
] | I describe the history of my attempts to arrive at a discrete substratum underlying the spacetime manifold, culminating in the hypothesis that the basic structure has the form of a partial-order (i.e. that it is a causal set). |
gr-qc/0003111 | Robert Paternoga | Robert Paternoga, Robert Graham | Triad representation of the Chern-Simons state in quantum gravity | Latex, 30 pages, 1 figure, to appear in Phys. Rev. D | Phys.Rev. D62 (2000) 084005 | 10.1103/PhysRevD.62.084005 | null | gr-qc | null | We investigate a triad representation of the Chern-Simons state of quantum
gravity with a non-vanishing cosmological constant. It is shown that the
Chern-Simons state, which is a well-known exact wavefunctional within the
Ashtekar theory, can be transformed to the real triad representation by means
of a suitably gene... | [
{
"created": "Thu, 30 Mar 2000 15:18:47 GMT",
"version": "v1"
}
] | 2009-10-31 | [
[
"Paternoga",
"Robert",
""
],
[
"Graham",
"Robert",
""
]
] | We investigate a triad representation of the Chern-Simons state of quantum gravity with a non-vanishing cosmological constant. It is shown that the Chern-Simons state, which is a well-known exact wavefunctional within the Ashtekar theory, can be transformed to the real triad representation by means of a suitably genera... |
gr-qc/0603119 | Roberto Giambo' | R. Giambo', F. Giannoni, G. Magli | A variational approach to homogeneous scalar fields in General
Relativity | null | null | null | null | gr-qc math.FA | null | A result of existence of homogeneous scalar field solutions between
prescribed configurations is given, using a modified version of
Euler--Maupertuis least action variational principle. Solutions are obtained as
limit of approximating variational problems, solved using techniques introduced
by Rabinowitz.
| [
{
"created": "Wed, 29 Mar 2006 15:36:34 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Giambo'",
"R.",
""
],
[
"Giannoni",
"F.",
""
],
[
"Magli",
"G.",
""
]
] | A result of existence of homogeneous scalar field solutions between prescribed configurations is given, using a modified version of Euler--Maupertuis least action variational principle. Solutions are obtained as limit of approximating variational problems, solved using techniques introduced by Rabinowitz. |
gr-qc/0411083 | Sasha Kozyreva v. | L. Bezrukov (1), S. Popov (2), V. Rudenko (2), A. Serdobolskii (2), M.
Skvortsov (3) ((1) Institute for Nuclear Research of Russian Academy of
Sciences, Moscow, (2) Sternberg Astronomical Institute of Moscow State
University, Moscow, (3) Institute of Laser Physics of Siberian Branch of
Russian Academy of Scienc... | Gravitational wave experiments and Baksan project "OGRAN" | 14 pages, 5 figures, The talk at the Gamov Memorial International
Conference dedicated to 100-th anniversary of George Gamow. Odessa, Ukraine,
August 8-14 2004. To be published in the Proceedings (Cambridge Scientific
Publications) | null | null | null | gr-qc | null | A brief sketch of the present status of gravitational wave experiments is
given. Attention is concentrated to recent observations with the gravitational
detector network. The project OGRAN for a combined optic-interferometrical and
acoustical gravitation wave antenna planned for installation into underground
faciliti... | [
{
"created": "Tue, 16 Nov 2004 19:54:16 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Bezrukov",
"L.",
""
],
[
"Popov",
"S.",
""
],
[
"Rudenko",
"V.",
""
],
[
"Serdobolskii",
"A.",
""
],
[
"Skvortsov",
"M.",
""
]
] | A brief sketch of the present status of gravitational wave experiments is given. Attention is concentrated to recent observations with the gravitational detector network. The project OGRAN for a combined optic-interferometrical and acoustical gravitation wave antenna planned for installation into underground facilities... |
1406.2850 | Branislav Cvetkovi\'c | M. Blagojevi\'c and B. Cvetkovi\'c | Gravitational waves with torsion in 3D | LaTeX, 15 pages, 4 figures; v2 minor changes | Phys. Rev. D 90 (2014), 044006 | 10.1103/PhysRevD.90.044006 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study gravitational waves with torsion as exact vacuum solutions of
three-dimensional gravity with propagating torsion. The new solutions are a
natural generalization of the plane-fronted gravitational waves in general
relativity with a cosmological constant, in the presence of matter.
| [
{
"created": "Wed, 11 Jun 2014 10:24:35 GMT",
"version": "v1"
},
{
"created": "Sun, 14 Sep 2014 22:24:45 GMT",
"version": "v2"
}
] | 2014-09-16 | [
[
"Blagojević",
"M.",
""
],
[
"Cvetković",
"B.",
""
]
] | We study gravitational waves with torsion as exact vacuum solutions of three-dimensional gravity with propagating torsion. The new solutions are a natural generalization of the plane-fronted gravitational waves in general relativity with a cosmological constant, in the presence of matter. |
1712.08752 | Ben David Normann Mr. | Ben David Normann, Sigbj{\o}rn Hervik, Angelo Ricciardone and Mikjel
Thorsrud | Bianchi cosmologies with $p$-form gauge fields | 42 pages, 6 figures, 6 tables in text. V2: minor changes, matches the
version published in CQG | Class. Quantum Grav. 35 (2018) 095004 | 10.1088/1361-6382/aab3a7 | null | gr-qc astro-ph.CO hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper the dynamics of free gauge fields in Bianchi type I-VII$_{h}$
space-times is investigated. The general equations for a matter sector
consisting of a $p$-form field strength ($p\,\in\,\{1,3\}$), a cosmological
constant ($4$-form) and perfect fluid in Bianchi type I-VII$_{h}$ space-times
are computed usin... | [
{
"created": "Sat, 23 Dec 2017 10:37:26 GMT",
"version": "v1"
},
{
"created": "Mon, 9 Apr 2018 16:40:03 GMT",
"version": "v2"
}
] | 2018-04-10 | [
[
"Normann",
"Ben David",
""
],
[
"Hervik",
"Sigbjørn",
""
],
[
"Ricciardone",
"Angelo",
""
],
[
"Thorsrud",
"Mikjel",
""
]
] | In this paper the dynamics of free gauge fields in Bianchi type I-VII$_{h}$ space-times is investigated. The general equations for a matter sector consisting of a $p$-form field strength ($p\,\in\,\{1,3\}$), a cosmological constant ($4$-form) and perfect fluid in Bianchi type I-VII$_{h}$ space-times are computed using ... |
gr-qc/0607114 | Gamal Nashed G.L. | Gamal G.L Nashed | Reissner-Nordstr\"om anti-de Sitter black holes and energy | 1 page Latex. Letter will appear in the European Journal of physics | Eur.Phys.J.C48:303,2006 | 10.1140/epjc/s10052-006-0011-y | null | gr-qc | null | We show that the tetrad field whose metric gives the Reissner-Nordstr\"om
anti-de Sitter black holes gives the correct value of energy in M{\o}ller
tetrad theory of gravitation.
| [
{
"created": "Wed, 26 Jul 2006 10:23:06 GMT",
"version": "v1"
}
] | 2011-01-27 | [
[
"Nashed",
"Gamal G. L",
""
]
] | We show that the tetrad field whose metric gives the Reissner-Nordstr\"om anti-de Sitter black holes gives the correct value of energy in M{\o}ller tetrad theory of gravitation. |
2104.00802 | Djordje Minic | Laurent Freidel, Jerzy Kowalski-Glikman, Robert G. Leigh and Djordje
Minic | Quantum Gravity Phenomenology in the Infrared | 10 pages;This paper has been awarded the Second Prize in the 2021
Essay Competition of the Gravity Research Foundation (typos corrected) | null | 10.1142/S0218271821410029 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Quantum gravity effects are traditionally tied to short distances and high
energies. In this essay we argue that, perhaps surprisingly, quantum gravity
may have important consequences for the phenomenology of the infrared. We
center our discussion around a conception of quantum gravity involving a notion
of quantum s... | [
{
"created": "Thu, 1 Apr 2021 23:34:35 GMT",
"version": "v1"
},
{
"created": "Tue, 17 May 2022 22:31:59 GMT",
"version": "v2"
}
] | 2022-05-19 | [
[
"Freidel",
"Laurent",
""
],
[
"Kowalski-Glikman",
"Jerzy",
""
],
[
"Leigh",
"Robert G.",
""
],
[
"Minic",
"Djordje",
""
]
] | Quantum gravity effects are traditionally tied to short distances and high energies. In this essay we argue that, perhaps surprisingly, quantum gravity may have important consequences for the phenomenology of the infrared. We center our discussion around a conception of quantum gravity involving a notion of quantum spa... |
1603.06608 | Aaron Levy | Aaron M. Levy and Gustavo Turiaci | Warm Ekpyrosis | 10 pages, 5 figures. References added | Phys. Rev. D 94, 083514 (2016) | 10.1103/PhysRevD.94.083514 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We propose a mechanism to generate a nearly scale-invariant spectrum of
adiabatic scalar perturbations about a stable, ekpyrotic background. The key
ingredient is a coupling between a single ekpyrotic field and a perfect fluid
of ultra-relativistic matter. This coupling introduces a friction term into the
equation of... | [
{
"created": "Mon, 21 Mar 2016 20:45:57 GMT",
"version": "v1"
},
{
"created": "Wed, 27 Apr 2016 17:34:59 GMT",
"version": "v2"
}
] | 2016-10-19 | [
[
"Levy",
"Aaron M.",
""
],
[
"Turiaci",
"Gustavo",
""
]
] | We propose a mechanism to generate a nearly scale-invariant spectrum of adiabatic scalar perturbations about a stable, ekpyrotic background. The key ingredient is a coupling between a single ekpyrotic field and a perfect fluid of ultra-relativistic matter. This coupling introduces a friction term into the equation of m... |
2311.07749 | Shant Baghram | Javad Tabatabaei, Abdolali Banihashemi, Shant Baghram, Bahram Mashhoon | Local Limit of Nonlocal Gravity: Cosmological Perturbations | 37 pages, 3 figure, 1 table; v2: expanded version accepted for
publication in ApJ | Astrophys. J. 965, 116 (2024) | 10.3847/1538-4357/ad2e04 | null | gr-qc astro-ph.CO | http://creativecommons.org/licenses/by/4.0/ | We explore the cosmological implications of the local limit of nonlocal
gravity, which is a classical generalization of Einstein's theory of
gravitation within the framework of teleparallelism. An appropriate solution of
this theory is the modified Cartesian flat cosmological model. The main purpose
of this paper is ... | [
{
"created": "Mon, 13 Nov 2023 21:06:19 GMT",
"version": "v1"
},
{
"created": "Fri, 23 Feb 2024 17:49:35 GMT",
"version": "v2"
}
] | 2024-04-17 | [
[
"Tabatabaei",
"Javad",
""
],
[
"Banihashemi",
"Abdolali",
""
],
[
"Baghram",
"Shant",
""
],
[
"Mashhoon",
"Bahram",
""
]
] | We explore the cosmological implications of the local limit of nonlocal gravity, which is a classical generalization of Einstein's theory of gravitation within the framework of teleparallelism. An appropriate solution of this theory is the modified Cartesian flat cosmological model. The main purpose of this paper is to... |
1609.04418 | Claudio Cremaschini | Claudio Cremaschini and Massimo Tessarotto | Synchronous Lagrangian variational principles in General Relativity | null | The European Physical Journal Plus 130, 123 (2015) | 10.1140/epjp/i2015-15123-4 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The problem of formulating synchronous variational principles in the context
of General Relativity is discussed. Based on the analogy with classical
relativistic particle dynamics, the existence of variational principles is
pointed out in relativistic classical field theory which are either
asynchronous or synchronou... | [
{
"created": "Wed, 14 Sep 2016 20:03:45 GMT",
"version": "v1"
}
] | 2016-09-16 | [
[
"Cremaschini",
"Claudio",
""
],
[
"Tessarotto",
"Massimo",
""
]
] | The problem of formulating synchronous variational principles in the context of General Relativity is discussed. Based on the analogy with classical relativistic particle dynamics, the existence of variational principles is pointed out in relativistic classical field theory which are either asynchronous or synchronous.... |
gr-qc/9802034 | Mikhail Altaisky | Mikhail V. Altaisky (Joint Institute for Nuclear Research) and
B.G.Sidharth (B.M.Birla Science Centre) | p-Adic physics below and above Planck scales | 8 pages, RevTeX, 2 encapsulated postscript figures, Invited paper to
appear in the special issue of the Journal of Chaos, Solitons and Fractals on
: "Superstrings, M, F, S ...Theory" M. S. El Naschie, C. Castro, Editors | null | 10.1016/S0960-0779(98)00089-7 | BSC-CAMCS-98-01-01 | gr-qc | null | We present a rewiew and also new possible applications of $p$-adic numbers to
pre-spacetime physics. It is shown that instead of the extension $R^n\to
Q_p^n$, which is usually implied in $p$-adic quantum field theory, it is
possible to build a model based on the $R^n\to Q_p$, where p=n+2 extension and
get rid of loop... | [
{
"created": "Mon, 16 Feb 1998 10:35:04 GMT",
"version": "v1"
}
] | 2015-06-25 | [
[
"Altaisky",
"Mikhail V.",
"",
"Joint Institute for Nuclear Research"
],
[
"Sidharth",
"B. G.",
"",
"B.M.Birla Science Centre"
]
] | We present a rewiew and also new possible applications of $p$-adic numbers to pre-spacetime physics. It is shown that instead of the extension $R^n\to Q_p^n$, which is usually implied in $p$-adic quantum field theory, it is possible to build a model based on the $R^n\to Q_p$, where p=n+2 extension and get rid of loop d... |
gr-qc/0107082 | Jeremy D. Schnittman | Jeremy D. Schnittman and Frederic A. Rasio | Ruling Out Chaos in Compact Binary Systems | 8 pages, 4 figures, submitted to Phys. Rev. Lett | Phys.Rev.Lett. 87 (2001) 121101 | 10.1103/PhysRevLett.87.121101 | null | gr-qc astro-ph | null | We investigate the orbits of compact binary systems during the final inspiral
period before coalescence by integrating numerically the second-order
post-Newtonian equations of motion. We include spin-orbit and spin-spin
coupling terms, which, according to a recent study by Levin [J. Levin, Phys.
Rev. Lett. 84, 3515 (... | [
{
"created": "Wed, 25 Jul 2001 20:58:53 GMT",
"version": "v1"
}
] | 2009-11-07 | [
[
"Schnittman",
"Jeremy D.",
""
],
[
"Rasio",
"Frederic A.",
""
]
] | We investigate the orbits of compact binary systems during the final inspiral period before coalescence by integrating numerically the second-order post-Newtonian equations of motion. We include spin-orbit and spin-spin coupling terms, which, according to a recent study by Levin [J. Levin, Phys. Rev. Lett. 84, 3515 (20... |
1601.01265 | Sarita Rani | J. K. Singh, Sarita Rani | The Bianchi type-V Dark Energy Cosmology in Self Interacting Brans Dicke
Theory of Gravity | 17 pages, 11 figures. arXiv admin note: text overlap with
arXiv:1206.0391 by other authors | null | 10.1134/S0040577917120121 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | This paper deals with a spatially homogeneous and totally anisotropic Bianchi
type-V cosmological model within the framework of self interacting Brans Dicke
theory of gravity in the background of anisotropic dark energy (DE) with
variable equation of state (EoS) parameter and constant deceleration parameter.
Constant... | [
{
"created": "Mon, 4 Jan 2016 10:11:55 GMT",
"version": "v1"
}
] | 2018-02-14 | [
[
"Singh",
"J. K.",
""
],
[
"Rani",
"Sarita",
""
]
] | This paper deals with a spatially homogeneous and totally anisotropic Bianchi type-V cosmological model within the framework of self interacting Brans Dicke theory of gravity in the background of anisotropic dark energy (DE) with variable equation of state (EoS) parameter and constant deceleration parameter. Constant d... |
2302.12739 | Adam Bac | Adam Bac, Wojciech Kami\'nski, Jerzy Lewandowski, Michalina Broda | Symplectic charges in the Yang-Mills theory of the normal conformal
Cartan connection: applications to gravity | 29 pages, 0 figures | Phys. Rev. D 108 (2023) 024009 | 10.1103/PhysRevD.108.024009 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | It is known that a source-free Yang-Mills theory with the normal conformal
Cartan connection used as the gauge potential gives rise to equations of motion
equivalent to the vanishing of the Bach tensor. We investigate the conformally
invariant presymplectic potential current obtained from this theory and find
that on... | [
{
"created": "Fri, 24 Feb 2023 16:50:57 GMT",
"version": "v1"
},
{
"created": "Sat, 4 Mar 2023 09:13:23 GMT",
"version": "v2"
},
{
"created": "Sun, 30 Jul 2023 16:26:47 GMT",
"version": "v3"
}
] | 2023-08-01 | [
[
"Bac",
"Adam",
""
],
[
"Kamiński",
"Wojciech",
""
],
[
"Lewandowski",
"Jerzy",
""
],
[
"Broda",
"Michalina",
""
]
] | It is known that a source-free Yang-Mills theory with the normal conformal Cartan connection used as the gauge potential gives rise to equations of motion equivalent to the vanishing of the Bach tensor. We investigate the conformally invariant presymplectic potential current obtained from this theory and find that on t... |
gr-qc/0508075 | Dr. Bikash Chandra Paul | Dilip Paul and Bikash Chandra Paul (North Bengal University) | Probability for Primordial Black Holes Pair in 1/R Gravity | 15 pages, no figure. submitted to Phys. Rev. D | Phys.Rev. D72 (2005) 064012 | 10.1103/PhysRevD.72.064012 | null | gr-qc | null | The probability for quantum creation of an inflationary universe with a pair
of black holes in 1/R - gravitational theory has been studied. Considering a
gravitational action which includes a cosmological constant ($\Lambda$) in
addition to $ \delta R^{- 1} $ term, the probability has been evaluated in a
semiclassica... | [
{
"created": "Thu, 18 Aug 2005 10:53:06 GMT",
"version": "v1"
}
] | 2009-11-11 | [
[
"Paul",
"Dilip",
"",
"North Bengal University"
],
[
"Paul",
"Bikash Chandra",
"",
"North Bengal University"
]
] | The probability for quantum creation of an inflationary universe with a pair of black holes in 1/R - gravitational theory has been studied. Considering a gravitational action which includes a cosmological constant ($\Lambda$) in addition to $ \delta R^{- 1} $ term, the probability has been evaluated in a semiclassical ... |
1305.6759 | Paolo Pani | Paolo Pani | Advanced Methods in Black-Hole Perturbation Theory | Lecture notes from the NRHEP spring school held at IST-Lisbon, March
2013. Extra material and notebooks available online at
http://blackholes.ist.utl.pt/nrhep2/. To be published by IJMPA (V. Cardoso,
L. Gualtieri, C. Herdeiro and U. Sperhake, Eds., 2013); v2: references
updated, published version | International Journal of Modern Physics A, Vol. 28 (2013) 1340018 | 10.1142/S0217751X13400186 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Black-hole perturbation theory is a useful tool to investigate issues in
astrophysics, high-energy physics, and fundamental problems in gravity. It is
often complementary to fully-fledged nonlinear evolutions and instrumental to
interpret some results of numerical simulations. Several modern applications
require adva... | [
{
"created": "Wed, 29 May 2013 11:10:22 GMT",
"version": "v1"
},
{
"created": "Mon, 9 Sep 2013 11:05:54 GMT",
"version": "v2"
}
] | 2013-09-10 | [
[
"Pani",
"Paolo",
""
]
] | Black-hole perturbation theory is a useful tool to investigate issues in astrophysics, high-energy physics, and fundamental problems in gravity. It is often complementary to fully-fledged nonlinear evolutions and instrumental to interpret some results of numerical simulations. Several modern applications require advanc... |
0808.1709 | Dong-han Yeom | Sungwook E. Hong, Dong-il Hwang, Ewan D. Stewart, Dong-han Yeom | The causal structure of dynamical charged black holes | 23 pages, 23 figures | Class.Quant.Grav.27:045014,2010 | 10.1088/0264-9381/27/4/045014 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the causal structure of dynamical charged black holes, with a
sufficient number of massless fields, using numerical simulations. Neglecting
Hawking radiation, the inner horizon is a null Cauchy horizon and a curvature
singularity due to mass inflation. When we include Hawking radiation, the inner
horizon bec... | [
{
"created": "Tue, 12 Aug 2008 19:44:17 GMT",
"version": "v1"
},
{
"created": "Fri, 6 Nov 2009 06:53:00 GMT",
"version": "v2"
},
{
"created": "Sat, 30 Jan 2010 17:10:05 GMT",
"version": "v3"
}
] | 2014-11-18 | [
[
"Hong",
"Sungwook E.",
""
],
[
"Hwang",
"Dong-il",
""
],
[
"Stewart",
"Ewan D.",
""
],
[
"Yeom",
"Dong-han",
""
]
] | We study the causal structure of dynamical charged black holes, with a sufficient number of massless fields, using numerical simulations. Neglecting Hawking radiation, the inner horizon is a null Cauchy horizon and a curvature singularity due to mass inflation. When we include Hawking radiation, the inner horizon becom... |
gr-qc/0412029 | Glenn Barnich | G. Barnich and G.Compere | Generalized Smarr relation for Kerr AdS black holes from improved
surface integrals | 21 pages Latex file, 1 figure; discussion on integrability rectified,
typo in (2.14) corrected | Phys.Rev.D71:044016,2005; Erratum-ibid.D71:029904,2006 | 10.1103/PhysRevD.71.044016 10.1103/PhysRevD.71.029904 | ULB-TH/04-31 | gr-qc hep-th | null | By using suitably improved surface integrals, we give a unified geometric
derivation of the generalized Smarr relation for higher dimensional Kerr black
holes which is valid both in flat and in anti-de Sitter backgrounds. The
improvement of the surface integrals, which allows one to use them
simultaneously at infinit... | [
{
"created": "Tue, 7 Dec 2004 12:39:11 GMT",
"version": "v1"
},
{
"created": "Tue, 13 Dec 2005 16:44:51 GMT",
"version": "v2"
}
] | 2014-11-17 | [
[
"Barnich",
"G.",
""
],
[
"Compere",
"G.",
""
]
] | By using suitably improved surface integrals, we give a unified geometric derivation of the generalized Smarr relation for higher dimensional Kerr black holes which is valid both in flat and in anti-de Sitter backgrounds. The improvement of the surface integrals, which allows one to use them simultaneously at infinity ... |
1208.3376 | Nan Li | Nan Li, Thomas Buchert, Akio Hosoya, Masaaki Morita, Dominik J.
Schwarz | Relative information entropy and Weyl curvature of the inhomogeneous
Universe | 8 pages, matches the published version in Physical Review D | Phys.Rev.D86: 083539,2012 | 10.1103/PhysRevD.86.083539 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Penrose conjectured a connection between entropy and Weyl curvature of the
Universe. This is plausible, as the almost homogeneous and isotropic Universe
at the onset of structure formation has negligible Weyl curvature, which then
grows (relative to the Ricci curvature) due to the formation of large-scale
structure a... | [
{
"created": "Thu, 16 Aug 2012 14:08:46 GMT",
"version": "v1"
},
{
"created": "Tue, 11 Dec 2012 00:54:48 GMT",
"version": "v2"
}
] | 2013-06-13 | [
[
"Li",
"Nan",
""
],
[
"Buchert",
"Thomas",
""
],
[
"Hosoya",
"Akio",
""
],
[
"Morita",
"Masaaki",
""
],
[
"Schwarz",
"Dominik J.",
""
]
] | Penrose conjectured a connection between entropy and Weyl curvature of the Universe. This is plausible, as the almost homogeneous and isotropic Universe at the onset of structure formation has negligible Weyl curvature, which then grows (relative to the Ricci curvature) due to the formation of large-scale structure and... |
gr-qc/9309002 | Steve Carlip | Steven Carlip | Notes on the (2+1)-Dimensional Wheeler-DeWitt Equation | 11 pages, LaTeX, UCD-93-25 and NSF-ITP-93-115 | Class.Quant.Grav.11:31-40,1994 | 10.1088/0264-9381/11/1/007 | null | gr-qc | null | In contrast to other approaches to (2+1)-dimensional quantum gravity, the
Wheeler-DeWitt equation appears to be too complicated to solve explicitly, even
for simple spacetime topologies. Nevertheless, it is possible to obtain a good
deal of information about solutions and their interpretation. In particular,
strong e... | [
{
"created": "Thu, 2 Sep 1993 01:01:39 GMT",
"version": "v1"
}
] | 2010-04-28 | [
[
"Carlip",
"Steven",
""
]
] | In contrast to other approaches to (2+1)-dimensional quantum gravity, the Wheeler-DeWitt equation appears to be too complicated to solve explicitly, even for simple spacetime topologies. Nevertheless, it is possible to obtain a good deal of information about solutions and their interpretation. In particular, strong evi... |
1607.07461 | Peter K.F. Kuhfittig | Peter K. F. Kuhfittig | Stable phantom-energy wormholes admitting conformal motions | 8 pages, no figures | Int. J. Mod. Phys. D, Vol. 26, 1750025, 2017 | 10.1142/S0218271817500250 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | It has been argued that wormholes are as good a prediction of Einstein's
theory as black holes but the theoretical construction requires a reverse
strategy, specifying the desired geometric properties of the wormhole and
leaving open the determination of the stress-energy tensor. We begin by
confirming an earlier res... | [
{
"created": "Mon, 25 Jul 2016 20:14:52 GMT",
"version": "v1"
},
{
"created": "Tue, 16 Aug 2016 17:17:58 GMT",
"version": "v2"
}
] | 2017-02-15 | [
[
"Kuhfittig",
"Peter K. F.",
""
]
] | It has been argued that wormholes are as good a prediction of Einstein's theory as black holes but the theoretical construction requires a reverse strategy, specifying the desired geometric properties of the wormhole and leaving open the determination of the stress-energy tensor. We begin by confirming an earlier resul... |
1707.02817 | Reza Saffari | Sara Rezvanjou, Reza Saffari, Mozhgan Masoudi and Saheb Soroushfar | Particle Dynamics Around the Black String | 38 pages, 33 figures, Accepted for Publication in Classical and
Quantum Gravity | null | 10.1088/1361-6382/ab9934 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper, some dynamical properties of neutral and charged particles
around a weakly magnetized five-dimensional static black string have been
studied. The perturbation method was also used to calculate the Innermost
Stable Circular Orbit (ISCO) of this metric in the presence of a magnetic
field. The escape velo... | [
{
"created": "Mon, 10 Jul 2017 12:09:23 GMT",
"version": "v1"
},
{
"created": "Mon, 28 Aug 2017 07:37:31 GMT",
"version": "v2"
},
{
"created": "Mon, 1 Jan 2018 19:34:36 GMT",
"version": "v3"
},
{
"created": "Thu, 1 Feb 2018 08:58:58 GMT",
"version": "v4"
},
{
"cre... | 2020-06-09 | [
[
"Rezvanjou",
"Sara",
""
],
[
"Saffari",
"Reza",
""
],
[
"Masoudi",
"Mozhgan",
""
],
[
"Soroushfar",
"Saheb",
""
]
] | In this paper, some dynamical properties of neutral and charged particles around a weakly magnetized five-dimensional static black string have been studied. The perturbation method was also used to calculate the Innermost Stable Circular Orbit (ISCO) of this metric in the presence of a magnetic field. The escape veloci... |
1809.03303 | Pardyumn Kumar Sahoo | P.K. Sahoo, P.H.R.S. Moraes, Parbati Sahoo, Binaya K. Bishi | $f(R,T)=f(R)+\lambda T$ gravity models as alternatives to cosmic
acceleration | 11 pages, 20 figures, Accepted version in EPJ C | Eur. Phys. J. C (2018) 78:736 | 10.1140/epjc/s10052-018-6211-4 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | This article presents cosmological models that arise in a subclass of
$f(R,T)=f(R)+f(T)$ gravity models, with different $f(R)$ functions and fixed
$T$-dependence. That is, the gravitational lagrangian is considered as
$f(R,T)=f(R)+\lambda T$, with constant $\lambda$. Here $R$ and $T$ represent
the Ricci scalar and tr... | [
{
"created": "Wed, 5 Sep 2018 14:09:20 GMT",
"version": "v1"
}
] | 2018-09-18 | [
[
"Sahoo",
"P. K.",
""
],
[
"Moraes",
"P. H. R. S.",
""
],
[
"Sahoo",
"Parbati",
""
],
[
"Bishi",
"Binaya K.",
""
]
] | This article presents cosmological models that arise in a subclass of $f(R,T)=f(R)+f(T)$ gravity models, with different $f(R)$ functions and fixed $T$-dependence. That is, the gravitational lagrangian is considered as $f(R,T)=f(R)+\lambda T$, with constant $\lambda$. Here $R$ and $T$ represent the Ricci scalar and trac... |
gr-qc/0301129 | Gerard Clement | Gerard Clement | Black hole mass and angular momentum in 2+1 gravity | 23 pages, 3 references added, to be published in Physical Review D | Phys.Rev. D68 (2003) 024032 | 10.1103/PhysRevD.68.024032 | LAPTH-962/03 | gr-qc hep-th | null | We propose a new definition for the mass and angular momentum of neutral or
electrically charged black holes in 2+1 gravity with two Killing vectors. These
finite conserved quantities, associated with the SL(2,R) invariance of the
reduced mechanical system, are shown to be identical to the quasilocal
conserved quanti... | [
{
"created": "Fri, 31 Jan 2003 15:46:18 GMT",
"version": "v1"
},
{
"created": "Fri, 7 Feb 2003 15:14:27 GMT",
"version": "v2"
},
{
"created": "Thu, 5 Jun 2003 08:23:18 GMT",
"version": "v3"
}
] | 2009-11-10 | [
[
"Clement",
"Gerard",
""
]
] | We propose a new definition for the mass and angular momentum of neutral or electrically charged black holes in 2+1 gravity with two Killing vectors. These finite conserved quantities, associated with the SL(2,R) invariance of the reduced mechanical system, are shown to be identical to the quasilocal conserved quantiti... |
gr-qc/0504024 | Wu Ning | Ning Wu | Non-Relativistic Limit of Dirac Equations in Gravitational Field and
Quantum Effects of Gravity | 12 pages, no figure | Commun.Theor.Phys.45:452-456,2006 | 10.1088/0253-6102/45/3/016 | null | gr-qc | null | Based on unified theory of electromagnetic interactions and gravitational
interactions, the non-relativistic limit of the equation of motion of a charged
Dirac particle in gravitational field is studied. From the Schrodinger equation
obtained from this non-relativistic limit, we could see that the classical
Newtonian... | [
{
"created": "Wed, 6 Apr 2005 14:48:15 GMT",
"version": "v1"
},
{
"created": "Sat, 23 Apr 2005 15:02:05 GMT",
"version": "v2"
}
] | 2008-11-26 | [
[
"Wu",
"Ning",
""
]
] | Based on unified theory of electromagnetic interactions and gravitational interactions, the non-relativistic limit of the equation of motion of a charged Dirac particle in gravitational field is studied. From the Schrodinger equation obtained from this non-relativistic limit, we could see that the classical Newtonian g... |
2006.03581 | William Barker Mr | W. E. V. Barker, A. N. Lasenby, M. P. Hobson, W. J. Handley | Mapping Poincar\'{e} gauge cosmology to Horndeski theory for emergent
dark energy | 11 pages, 2 figures. Results previously presented at DAMTP on
14/02/20. Added substantial introduction to Poincar\'e gauge theory and its
perturbative renormalisability. Added various references. Incorporated
supplemental material into main text (previously hosted on GitHub). Titular
change. Results unaffected.... | Phys. Rev. D 102, 084002 (2020) | 10.1103/PhysRevD.102.084002 | null | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The ten-parameter, quadratic Poincar\'e gauge theory of gravity is a
plausible alternative to general relativity. We show that the rich background
cosmology of the gauge theory is described by a non-canonical bi-scalar-tensor
theory in the Jordan frame: the `metrical analogue'. This provides a unified
framework for f... | [
{
"created": "Fri, 5 Jun 2020 17:54:04 GMT",
"version": "v1"
},
{
"created": "Mon, 7 Sep 2020 14:11:36 GMT",
"version": "v2"
}
] | 2020-10-07 | [
[
"Barker",
"W. E. V.",
""
],
[
"Lasenby",
"A. N.",
""
],
[
"Hobson",
"M. P.",
""
],
[
"Handley",
"W. J.",
""
]
] | The ten-parameter, quadratic Poincar\'e gauge theory of gravity is a plausible alternative to general relativity. We show that the rich background cosmology of the gauge theory is described by a non-canonical bi-scalar-tensor theory in the Jordan frame: the `metrical analogue'. This provides a unified framework for fut... |
0812.1081 | Joel Saavedra | Sergio del Campo, Ramon Herrera and Joel Saavedra | Tachyon warm inflationary universe model in the weak dissipative regime | 9 pages, accepted by European Physical Journal C | Eur.Phys.J.C59:913-916,2009 | 10.1140/epjc/s10052-008-0848-3 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Warm inflationary universe model in a tachyon field theory is studied in the
weak dissipative regime. We develop our model for an exponential potential and
the dissipation parameter $\Gamma=\Gamma_0$=constant. We describe scalar and
tensor perturbations for this scenario.
| [
{
"created": "Fri, 5 Dec 2008 15:34:45 GMT",
"version": "v1"
}
] | 2009-12-04 | [
[
"del Campo",
"Sergio",
""
],
[
"Herrera",
"Ramon",
""
],
[
"Saavedra",
"Joel",
""
]
] | Warm inflationary universe model in a tachyon field theory is studied in the weak dissipative regime. We develop our model for an exponential potential and the dissipation parameter $\Gamma=\Gamma_0$=constant. We describe scalar and tensor perturbations for this scenario. |
2212.13802 | F\'elix-Louis Juli\'e | F\'elix-Louis Juli\'e, Vishal Baibhav, Emanuele Berti, Alessandra
Buonanno | Third post-Newtonian effective-one-body Hamiltonian in scalar-tensor and
Einstein-scalar-Gauss-Bonnet gravity | Minor changes to match published version. Results unchanged | Phys. Rev. D 107, 104044 (2023) | 10.1103/PhysRevD.107.104044 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We build an effective-one-body (EOB) Hamiltonian at third post-Newtonian
(3PN) order in scalar-tensor (ST) and Einstein-scalar-Gauss-Bonnet (ESGB)
theories of gravity. The latter is an extension of general relativity that
predicts scalar hair for black holes. We start from the known two-body
Lagrangian at 3PN order, ... | [
{
"created": "Wed, 28 Dec 2022 12:48:53 GMT",
"version": "v1"
},
{
"created": "Tue, 6 Jun 2023 20:25:59 GMT",
"version": "v2"
}
] | 2023-06-08 | [
[
"Julié",
"Félix-Louis",
""
],
[
"Baibhav",
"Vishal",
""
],
[
"Berti",
"Emanuele",
""
],
[
"Buonanno",
"Alessandra",
""
]
] | We build an effective-one-body (EOB) Hamiltonian at third post-Newtonian (3PN) order in scalar-tensor (ST) and Einstein-scalar-Gauss-Bonnet (ESGB) theories of gravity. The latter is an extension of general relativity that predicts scalar hair for black holes. We start from the known two-body Lagrangian at 3PN order, an... |
0810.2006 | Mohammad Nouri-Zonoz | H. Miraghaei and M. Nouri-Zonoz | Classical tests of general relativity in the Newtonian limit of
Schwarzschild-de Sitter spacetime | 12 pages, Revtex, 1 figure | Gen.Rel.Grav.42:2947-2956,2010 | 10.1007/s10714-010-1052-y | IPM/A-2008/001 | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Recently it has been shown that despite previous claims the cosmological
constant affects light bending. In the present article we study light bending
and the advance of Mercury's perihelion in the context of the Newtonian limit
of Schwarzschild-de Sitter spacetime employing the special relativistic
equivalence of ma... | [
{
"created": "Sat, 11 Oct 2008 06:54:56 GMT",
"version": "v1"
},
{
"created": "Thu, 13 Nov 2008 13:43:37 GMT",
"version": "v2"
},
{
"created": "Wed, 3 Dec 2008 08:16:17 GMT",
"version": "v3"
},
{
"created": "Thu, 1 Jan 2009 11:06:25 GMT",
"version": "v4"
},
{
"cre... | 2010-11-09 | [
[
"Miraghaei",
"H.",
""
],
[
"Nouri-Zonoz",
"M.",
""
]
] | Recently it has been shown that despite previous claims the cosmological constant affects light bending. In the present article we study light bending and the advance of Mercury's perihelion in the context of the Newtonian limit of Schwarzschild-de Sitter spacetime employing the special relativistic equivalence of mass... |
1611.05766 | Mariafelicia De Laurentis Professor | Mariafelicia De Laurentis, Oliver Porth, Luke Bovard, Bobomurat
Ahmedov, Ahmadjon Abdujabbarov | Constraining alternative theories of gravity using GW$150914$ and
GW$151226$ | 11 pages, 3 figures, accepted for publication in Phys. Rev. D. arXiv
admin note: text overlap with arXiv:gr-qc/0412088 by other authors | null | 10.1103/PhysRevD.94.124038 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The recently reported gravitational wave events GW$150914$ and GW$151226$
caused by the mergers of binary black holes
[arXiv:1602.03841],[arXiv:1606.04855],[arXiv:1606.04856] provide a formidable
way to set constraints on alternative metric theories of gravity in the strong
field regime. In this paper, we develop an ... | [
{
"created": "Wed, 16 Nov 2016 16:23:00 GMT",
"version": "v1"
}
] | 2017-02-01 | [
[
"De Laurentis",
"Mariafelicia",
""
],
[
"Porth",
"Oliver",
""
],
[
"Bovard",
"Luke",
""
],
[
"Ahmedov",
"Bobomurat",
""
],
[
"Abdujabbarov",
"Ahmadjon",
""
]
] | The recently reported gravitational wave events GW$150914$ and GW$151226$ caused by the mergers of binary black holes [arXiv:1602.03841],[arXiv:1606.04855],[arXiv:1606.04856] provide a formidable way to set constraints on alternative metric theories of gravity in the strong field regime. In this paper, we develop an ap... |
gr-qc/0205056 | T. P. Singh | T. P. Singh (Tata Institute of Fundamental Research) | Quantum mechanics without spacetime II : noncommutative geometry and the
free point particle | 8 pages | Gen.Rel.Grav. 35 (2003) 869-876 | 10.1023/A:1022999205139 | null | gr-qc hep-th quant-ph | null | In a recent paper we have suggested that a formulation of quantum mechanics
should exist, which does not require the concept of time, and that the
appropriate mathematical language for such a formulation is noncommutative
differential geometry. In the present paper we discuss this formulation for the
free point parti... | [
{
"created": "Wed, 15 May 2002 04:28:32 GMT",
"version": "v1"
}
] | 2015-06-25 | [
[
"Singh",
"T. P.",
"",
"Tata Institute of Fundamental Research"
]
] | In a recent paper we have suggested that a formulation of quantum mechanics should exist, which does not require the concept of time, and that the appropriate mathematical language for such a formulation is noncommutative differential geometry. In the present paper we discuss this formulation for the free point particl... |
2308.06803 | Luca Guido Molinari | Carlo Alberto Mantica and Luca Guido Molinari | A note on Harada's Conformal Killing gravity | 5 pages. Last section improved, new references and remark 3 added | Phys. Rev. D 108, 124029 (2023) | 10.1103/PhysRevD.108.124029 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We show that "Gravity at cosmological distances: Explaining the accelerating
expansion without dark energy" recently proposed by J. Harada [6] is equivalent
to the Einstein equation extended by the presence of an arbitrary conformal
Killing tensor. This turns Harada's equations of third order in the derivatives
of th... | [
{
"created": "Sun, 13 Aug 2023 16:13:52 GMT",
"version": "v1"
},
{
"created": "Wed, 11 Oct 2023 17:25:24 GMT",
"version": "v2"
}
] | 2023-12-18 | [
[
"Mantica",
"Carlo Alberto",
""
],
[
"Molinari",
"Luca Guido",
""
]
] | We show that "Gravity at cosmological distances: Explaining the accelerating expansion without dark energy" recently proposed by J. Harada [6] is equivalent to the Einstein equation extended by the presence of an arbitrary conformal Killing tensor. This turns Harada's equations of third order in the derivatives of the ... |
1710.10429 | Mohammad Atazadeh | F. Darabi, K. Atazadeh, Y. Heydarzade | Einstein Static Universe in Rastall Theory of Gravity | 9 pages, 1 figure | Eur. Phys. J. Plus (2018) 133: 249 | 10.1140/epjp/i2018-12083-1 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate stability of the Einstein static solution against homogeneous
scalar, vector and tensor perturbations in the context of Rastall theory of
gravity. We show that this solution in the presence of perfect fluid and vacuum
energy originating from conformally-invariant fields is stable. Using the fix
point m... | [
{
"created": "Sat, 28 Oct 2017 09:05:20 GMT",
"version": "v1"
}
] | 2018-07-10 | [
[
"Darabi",
"F.",
""
],
[
"Atazadeh",
"K.",
""
],
[
"Heydarzade",
"Y.",
""
]
] | We investigate stability of the Einstein static solution against homogeneous scalar, vector and tensor perturbations in the context of Rastall theory of gravity. We show that this solution in the presence of perfect fluid and vacuum energy originating from conformally-invariant fields is stable. Using the fix point met... |
1304.1160 | Paolo Pani | Paolo Pani, Emanuele Berti, Leonardo Gualtieri | Gravito-Electromagnetic Perturbations of Kerr-Newman Black Holes:
Stability and Isospectrality in the Slow-Rotation Limit | 5 pages, 2 figures. Mathematica notebook with derivation of the axial
and polar equations available at http://blackholes.ist.utl.pt/?page=Files and
at http://www.phy.olemiss.edu/~berti/qnms.html; v2: Discussion improved.
Matches version to be published in PRL | null | 10.1103/PhysRevLett.110.241103 | null | gr-qc hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The most general stationary black-hole solution of Einstein-Maxwell theory in
vacuum is the Kerr-Newman metric, specified by three parameters: mass M, spin J
and charge Q. Within classical general relativity, the most important and
challenging open problem in black-hole perturbation theory is the study of
gravitation... | [
{
"created": "Wed, 3 Apr 2013 20:00:04 GMT",
"version": "v1"
},
{
"created": "Fri, 24 May 2013 15:04:11 GMT",
"version": "v2"
}
] | 2013-06-19 | [
[
"Pani",
"Paolo",
""
],
[
"Berti",
"Emanuele",
""
],
[
"Gualtieri",
"Leonardo",
""
]
] | The most general stationary black-hole solution of Einstein-Maxwell theory in vacuum is the Kerr-Newman metric, specified by three parameters: mass M, spin J and charge Q. Within classical general relativity, the most important and challenging open problem in black-hole perturbation theory is the study of gravitational... |
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