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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
gr-qc/9504023 | Mathias Pillin | Mathias Pillin | Selfdual 2-form formulation of gravity and classification of
energy-momentum tensors | title changed, extended version | Class. Quant. Grav. 13 (1996) 2379 | 10.1088/0264-9381/13/8/020 | null | gr-qc | null | It is shown how the different irreducibility classes of the energy-momentum
tensor allow for a Lagrangian formulation of the gravity-matter system using a
selfdual 2-form as a basic variable. It is pointed out what kind of
difficulties arise when attempting to construct a pure spin-connection
formulation of the gravi... | [
{
"created": "Mon, 17 Apr 1995 01:43:50 GMT",
"version": "v1"
},
{
"created": "Tue, 17 Dec 1996 04:04:48 GMT",
"version": "v2"
}
] | 2009-10-28 | [
[
"Pillin",
"Mathias",
""
]
] | It is shown how the different irreducibility classes of the energy-momentum tensor allow for a Lagrangian formulation of the gravity-matter system using a selfdual 2-form as a basic variable. It is pointed out what kind of difficulties arise when attempting to construct a pure spin-connection formulation of the gravity... |
2112.13140 | Peter Cameron | Peter Cameron, Piotr T. Chru\'sciel | Asymptotic flatness in higher dimensions | null | J. Math. Phys. 63, 032501 (2022) | 10.1063/5.0083728 | null | gr-qc math.DG | http://creativecommons.org/licenses/by/4.0/ | We show that $(n+1)$-dimensional Myers-Perry metrics, $n\geq4$, have a
conformal completion at spacelike infinity of $C^{n-3,1}$ differentiability
class, and that the result is optimal in even spacetime dimensions. The
associated asymptotic symmetries are presented.
| [
{
"created": "Fri, 24 Dec 2021 20:50:21 GMT",
"version": "v1"
},
{
"created": "Mon, 18 Dec 2023 15:19:12 GMT",
"version": "v2"
}
] | 2023-12-19 | [
[
"Cameron",
"Peter",
""
],
[
"Chruściel",
"Piotr T.",
""
]
] | We show that $(n+1)$-dimensional Myers-Perry metrics, $n\geq4$, have a conformal completion at spacelike infinity of $C^{n-3,1}$ differentiability class, and that the result is optimal in even spacetime dimensions. The associated asymptotic symmetries are presented. |
gr-qc/9610076 | Philip Papadopoulos | Philippos Papadopoulos, Pablo Laguna | Cauchy-characteristic Evolution of Einstein-Klein-Gordon Systems: The
Black Hole Regime | To appear in Phys. Rev. D, 9 pages, revtex, 5 figures available at
http://www.astro.psu.edu/users/nr/preprints.html | Phys.Rev. D55 (1997) 2038-2043 | 10.1103/PhysRevD.55.2038 | CGPG-96/10-3 | gr-qc | null | The Cauchy+characteristic matching (CCM) problem for the scalar wave equation
is investigated in the background geometry of a Schwarzschild black hole.
Previously reported work developed the CCM framework for the coupled
Einstein-Klein-Gordon system of equations, assuming a regular center of
symmetry. Here, the time ... | [
{
"created": "Thu, 31 Oct 1996 21:59:53 GMT",
"version": "v1"
}
] | 2009-10-28 | [
[
"Papadopoulos",
"Philippos",
""
],
[
"Laguna",
"Pablo",
""
]
] | The Cauchy+characteristic matching (CCM) problem for the scalar wave equation is investigated in the background geometry of a Schwarzschild black hole. Previously reported work developed the CCM framework for the coupled Einstein-Klein-Gordon system of equations, assuming a regular center of symmetry. Here, the time ev... |
1201.4373 | Mahdi Godazgar | Mahdi Godazgar and Harvey S. Reall | Peeling of the Weyl tensor and gravitational radiation in higher
dimensions | 15 pages; minor corrections; Phys. Rev. D: Vol.85, No.8 (2012) | null | 10.1103/PhysRevD.85.084021 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The peeling behaviour of the Weyl tensor near null infinity is determined for
an asymptotically flat higher dimensional spacetime. The result is
qualitatively different from the peeling property in 4d. To leading order, the
Weyl tensor is type N. The first subleading term is type II. The next term is
algebraically ge... | [
{
"created": "Fri, 20 Jan 2012 19:35:12 GMT",
"version": "v1"
},
{
"created": "Sun, 22 Apr 2012 17:04:03 GMT",
"version": "v2"
}
] | 2013-05-30 | [
[
"Godazgar",
"Mahdi",
""
],
[
"Reall",
"Harvey S.",
""
]
] | The peeling behaviour of the Weyl tensor near null infinity is determined for an asymptotically flat higher dimensional spacetime. The result is qualitatively different from the peeling property in 4d. To leading order, the Weyl tensor is type N. The first subleading term is type II. The next term is algebraically gene... |
1504.01714 | Anirban Ain | Anirban Ain, Prathamesh Dalvi and Sanjit Mitra | Fast Gravitational Wave Radiometry using Data Folding | 11 pages, 3 figures, 1 table | Phys. Rev. D 92, 022003 (2015) | 10.1103/PhysRevD.92.022003 | null | gr-qc astro-ph.IM | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Gravitational Waves (GWs) from the early universe and unresolved
astrophysical sources are expected to create a stochastic GW background (SGWB).
The GW radiometer algorithm is well suited to probe such a background using
data from ground based laser interferometric detectors. Radiometer analysis can
be performed in d... | [
{
"created": "Tue, 7 Apr 2015 19:39:10 GMT",
"version": "v1"
}
] | 2015-09-23 | [
[
"Ain",
"Anirban",
""
],
[
"Dalvi",
"Prathamesh",
""
],
[
"Mitra",
"Sanjit",
""
]
] | Gravitational Waves (GWs) from the early universe and unresolved astrophysical sources are expected to create a stochastic GW background (SGWB). The GW radiometer algorithm is well suited to probe such a background using data from ground based laser interferometric detectors. Radiometer analysis can be performed in dif... |
1506.08823 | Marit Sandstad | Florian K\"uhnel and Marit Sandstad | Baryon number conservation in Bose-Einstein condensate black holes | 5 pages, no figures | Phys. Rev. D 92, 124028 (2015) | 10.1103/PhysRevD.92.124028 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Primordial black holes are studied in the Bose-Einstein condensate
description of space-time. The question of baryon-number conservation is
investigated with emphasis on possible formation of bound states of the
system's remaining captured baryons. This leads to distinct predictions for
both the formation time, which... | [
{
"created": "Mon, 29 Jun 2015 20:00:35 GMT",
"version": "v1"
},
{
"created": "Fri, 18 Dec 2015 15:04:33 GMT",
"version": "v2"
}
] | 2015-12-23 | [
[
"Kühnel",
"Florian",
""
],
[
"Sandstad",
"Marit",
""
]
] | Primordial black holes are studied in the Bose-Einstein condensate description of space-time. The question of baryon-number conservation is investigated with emphasis on possible formation of bound states of the system's remaining captured baryons. This leads to distinct predictions for both the formation time, which f... |
gr-qc/9603015 | Julio Cesar Fabris | J.P. Baptista, J.C. Fabris and S.V.B. Goncalves (Universidade Federal
do Espirito Santo - Brazil) | Density Perturbations in the Brans-Dicke Theory | 26 pages, latex file | null | 10.1007/BF00645648 | DF-UFES/96 | gr-qc | null | We analyse the fate of density perturbation in the Brans-Dicke Theory, giving
a general classification of the solutions of the perturbed equations when the
scale factor of the background evolves as a power law. We study with details
the cases of vacuum, inflation, radiation and incoherent matter. We find, for
the a n... | [
{
"created": "Wed, 6 Mar 1996 18:09:17 GMT",
"version": "v1"
}
] | 2009-10-28 | [
[
"Baptista",
"J. P.",
"",
"Universidade Federal\n do Espirito Santo - Brazil"
],
[
"Fabris",
"J. C.",
"",
"Universidade Federal\n do Espirito Santo - Brazil"
],
[
"Goncalves",
"S. V. B.",
"",
"Universidade Federal\n do Espirito Santo - Brazil"
]
] | We analyse the fate of density perturbation in the Brans-Dicke Theory, giving a general classification of the solutions of the perturbed equations when the scale factor of the background evolves as a power law. We study with details the cases of vacuum, inflation, radiation and incoherent matter. We find, for the a neg... |
2012.04614 | Antonio De Padua Santos | Joao Chakrian and Antonio de Padua Santos | Black String Thermodynamics in Noncommutative Spacetime: Anomaly and
Phase Transition | 13 pages, 8 figures | null | null | null | gr-qc hep-th | http://creativecommons.org/licenses/by/4.0/ | Black holes have been a subject of investigation over years not only because
they have interesting physical properties, but also because they seem to be the
appropriate tool for studying gravity in quantum scale. Although a lot of
effort has been made to understand the aspects of spacetime on the quantum
scale, the a... | [
{
"created": "Tue, 8 Dec 2020 18:38:59 GMT",
"version": "v1"
}
] | 2020-12-09 | [
[
"Chakrian",
"Joao",
""
],
[
"Santos",
"Antonio de Padua",
""
]
] | Black holes have been a subject of investigation over years not only because they have interesting physical properties, but also because they seem to be the appropriate tool for studying gravity in quantum scale. Although a lot of effort has been made to understand the aspects of spacetime on the quantum scale, the app... |
1503.08640 | Kirill Krasnov | Yannick Herfray and Kirill Krasnov | New first order Lagrangian for General Relativity | 4 pages | null | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We describe a new BF-type first-order in derivatives Lagrangian for General
Relativity. The Lagrangian depends on a connection field as well as a
Lie-algebra valued two-form field, with no other fields present. There are two
free parameters, which translate into the cosmological constant and the
coefficient in front ... | [
{
"created": "Mon, 30 Mar 2015 11:24:09 GMT",
"version": "v1"
}
] | 2015-03-31 | [
[
"Herfray",
"Yannick",
""
],
[
"Krasnov",
"Kirill",
""
]
] | We describe a new BF-type first-order in derivatives Lagrangian for General Relativity. The Lagrangian depends on a connection field as well as a Lie-algebra valued two-form field, with no other fields present. There are two free parameters, which translate into the cosmological constant and the coefficient in front of... |
2406.12055 | Olindo Zanotti | Michael Dumbser, Olindo Zanotti, Gabriella Puppo | A monolithic first--order BSSNOK formulation of the Einstein--Euler
equations and its solution with path-conservative finite difference CWENO
schemes | 26 pages, 14 figures | null | null | null | gr-qc astro-ph.HE cs.NA math.NA | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present a new, monolithic first--order (both in time and space) BSSNOK
formulation of the coupled Einstein--Euler equations. The entire system of
hyperbolic PDEs is solved in a completely unified manner via one single
numerical scheme applied to both the conservative sector of the matter part and
to the first--ord... | [
{
"created": "Mon, 17 Jun 2024 19:47:06 GMT",
"version": "v1"
}
] | 2024-06-19 | [
[
"Dumbser",
"Michael",
""
],
[
"Zanotti",
"Olindo",
""
],
[
"Puppo",
"Gabriella",
""
]
] | We present a new, monolithic first--order (both in time and space) BSSNOK formulation of the coupled Einstein--Euler equations. The entire system of hyperbolic PDEs is solved in a completely unified manner via one single numerical scheme applied to both the conservative sector of the matter part and to the first--order... |
1006.4644 | Leone Bosi | Leone B. Bosi | cuInspiral: prototype gravitational waves detection pipeline fully coded
on GPU using CUDA | null | null | null | null | gr-qc physics.comp-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper we report the prototype of the first coalescing binary
detection pipeline fully implemented on NVIDIA GPU hardware accelerators. The
code has been embedded in a GPU library, called cuInspiral and has been
developed under CUDA framework. The library contains for example a PN
gravitational wave signal gen... | [
{
"created": "Wed, 16 Jun 2010 22:25:04 GMT",
"version": "v1"
}
] | 2010-06-25 | [
[
"Bosi",
"Leone B.",
""
]
] | In this paper we report the prototype of the first coalescing binary detection pipeline fully implemented on NVIDIA GPU hardware accelerators. The code has been embedded in a GPU library, called cuInspiral and has been developed under CUDA framework. The library contains for example a PN gravitational wave signal gener... |
gr-qc/0001094 | Maurizio Gasperini | M. Gasperini | Signal-to-noise ratio for a stochastic background of massive relic
particles | 10 pages, Latex, two figures included using epsfig | Phys.Lett. B477 (2000) 242-247 | 10.1016/S0370-2693(00)00195-7 | BA-TH/00-374 | gr-qc astro-ph hep-ph | null | We estimate the signal-to-noise ratio for two gravitational detectors
interacting with a stochastic background of massive scalar waves. We find that
the present experimental level of sensitivity could be already enough to detect
a signal from a light but non-relativistic component of dark matter, even if
the coupling... | [
{
"created": "Fri, 28 Jan 2000 13:10:47 GMT",
"version": "v1"
}
] | 2009-10-31 | [
[
"Gasperini",
"M.",
""
]
] | We estimate the signal-to-noise ratio for two gravitational detectors interacting with a stochastic background of massive scalar waves. We find that the present experimental level of sensitivity could be already enough to detect a signal from a light but non-relativistic component of dark matter, even if the coupling i... |
1509.07916 | Jose Edgar Madriz Aguilar | M. L. Pucheu, C. Romero, M. Bellini and Jos\'e Edgar Madriz Aguilar | Gauge invariant fluctuations of the metric during inflation from new
scalar-tensor Weyl-Integrable gravity model | 9 pages, no figures. This is a revised version accepted for
publication in Physical Review D | Phys. Rev. D 94, 064075 (2016) | 10.1103/PhysRevD.94.064075 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate gauge invariant scalar fluctuations of the metric during
inflation in a non-perturbative formalism in the framework of a recently
introduced scalar-tensor theory of gravity formulated on a Weyl-Integrable
geometry. We found that the Weyl scalar field can play the role of the inflaton
field in this theo... | [
{
"created": "Fri, 25 Sep 2015 22:49:33 GMT",
"version": "v1"
},
{
"created": "Sun, 13 Mar 2016 15:06:40 GMT",
"version": "v2"
},
{
"created": "Sat, 6 Aug 2016 20:01:41 GMT",
"version": "v3"
}
] | 2016-10-05 | [
[
"Pucheu",
"M. L.",
""
],
[
"Romero",
"C.",
""
],
[
"Bellini",
"M.",
""
],
[
"Aguilar",
"José Edgar Madriz",
""
]
] | We investigate gauge invariant scalar fluctuations of the metric during inflation in a non-perturbative formalism in the framework of a recently introduced scalar-tensor theory of gravity formulated on a Weyl-Integrable geometry. We found that the Weyl scalar field can play the role of the inflaton field in this theory... |
2309.00439 | Sushovan Mondal | Sushovan Mondal and Manjari Bagchi | f-mode oscillations of anisotropic neutron stars in full general
relativity | 18 pages, 14 figures, 1 table; abstract shortened as per arXiv
requirement (see pdf version) | null | null | null | gr-qc astro-ph.HE astro-ph.SR | http://creativecommons.org/licenses/by/4.0/ | We investigate f-mode oscillations of static anisotropic stable neutron stars
within the framework of full general relativity. We present equations governing
unperturbed stellar structures and oscillations with an ansatz to account for
the anisotropy. We solve those equations for two different equations of states.
We... | [
{
"created": "Fri, 1 Sep 2023 13:14:23 GMT",
"version": "v1"
},
{
"created": "Mon, 29 Jan 2024 06:00:35 GMT",
"version": "v2"
}
] | 2024-01-30 | [
[
"Mondal",
"Sushovan",
""
],
[
"Bagchi",
"Manjari",
""
]
] | We investigate f-mode oscillations of static anisotropic stable neutron stars within the framework of full general relativity. We present equations governing unperturbed stellar structures and oscillations with an ansatz to account for the anisotropy. We solve those equations for two different equations of states. We s... |
1508.06221 | Shih-Yuin Lin | Shih-Yuin Lin, Chung-Hsien Chou, Bei-Lok Hu | Entanglement Dynamics of Detectors in an Einstein Cylinder | 32 pages, 13 figures. Early-time analysis and comparison with
perturbative results added; Figs. 6-9, 11-12 updated | JHEP 03 (2016) 047 | 10.1007/JHEP03(2016)047 | null | gr-qc hep-th quant-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate how nontrivial topology affects the entanglement dynamics
between a detector and a quantum field and between two detectors mediated by a
quantum field. Nontrivial topology refers to both that of the base space and
that of the bundle. Using a derivative-coupling Unruh-DeWitt-like detector
model interact... | [
{
"created": "Tue, 25 Aug 2015 16:52:05 GMT",
"version": "v1"
},
{
"created": "Wed, 16 Mar 2016 06:00:43 GMT",
"version": "v2"
}
] | 2016-03-17 | [
[
"Lin",
"Shih-Yuin",
""
],
[
"Chou",
"Chung-Hsien",
""
],
[
"Hu",
"Bei-Lok",
""
]
] | We investigate how nontrivial topology affects the entanglement dynamics between a detector and a quantum field and between two detectors mediated by a quantum field. Nontrivial topology refers to both that of the base space and that of the bundle. Using a derivative-coupling Unruh-DeWitt-like detector model interactin... |
gr-qc/9510066 | null | Enrico Carugno, Marco Litterio, Franco Occhionero, and Giuseppe
Pollifrone | Inflation in Multidimensional Quantum Cosmology | RevTeX, 30 pages, 4 figures available via fax on request to
litterio@astrom.astro.it, submitted to Phys. Rev. D | Phys.Rev. D53 (1996) 6863-6874 | 10.1103/PhysRevD.53.6863 | null | gr-qc | null | We extend to multidimensional cosmology Vilenkin's prescription of tunnelling
from nothing for the quantum origin of the observable Universe. Our model
consists of a $D+4$-dimensional spacetime of topology ${\cal R}\times {\cal
S}^3 \times{\cal S}^D$, with a scalar field (``chaotic inflaton'') for the
matter componen... | [
{
"created": "Tue, 31 Oct 1995 13:03:24 GMT",
"version": "v1"
}
] | 2009-10-28 | [
[
"Carugno",
"Enrico",
""
],
[
"Litterio",
"Marco",
""
],
[
"Occhionero",
"Franco",
""
],
[
"Pollifrone",
"Giuseppe",
""
]
] | We extend to multidimensional cosmology Vilenkin's prescription of tunnelling from nothing for the quantum origin of the observable Universe. Our model consists of a $D+4$-dimensional spacetime of topology ${\cal R}\times {\cal S}^3 \times{\cal S}^D$, with a scalar field (``chaotic inflaton'') for the matter component.... |
2308.00308 | YuSen An | Xiao Liang, Ya-Peng Hu, Chen-Hao Wu, Yu-Sen An | Thermodynamics and evaporation of perfect fluid dark matter black hole
in phantom background | 14 pages, 2 figures, comments are welcomed. v2: typos corrected | null | 10.1140/epjc/s10052-023-12200-8 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present a novel interpretation of the thermodynamics of perfect fluid dark
matter (PFDM) black hole based on Misner-Sharp energy, and then investigate its
evaporation behavior. We find that the ratio between dark sector initial
density and black hole horizon radius significantly influences black hole
evaporation b... | [
{
"created": "Tue, 1 Aug 2023 05:59:03 GMT",
"version": "v1"
},
{
"created": "Tue, 8 Aug 2023 03:04:52 GMT",
"version": "v2"
}
] | 2023-11-09 | [
[
"Liang",
"Xiao",
""
],
[
"Hu",
"Ya-Peng",
""
],
[
"Wu",
"Chen-Hao",
""
],
[
"An",
"Yu-Sen",
""
]
] | We present a novel interpretation of the thermodynamics of perfect fluid dark matter (PFDM) black hole based on Misner-Sharp energy, and then investigate its evaporation behavior. We find that the ratio between dark sector initial density and black hole horizon radius significantly influences black hole evaporation beh... |
1705.03654 | Bobir Toshmatov | Bobir Toshmatov, Cosimo Bambi, Bobomurat Ahmedov, Zden\v{e}k
Stuchl\'ik, Jan Schee | Scalar perturbations of nonsingular nonrotating black holes in conformal
gravity | 10 pages, 5 figures, 3 tables | Phys. Rev. D 96, 064028 (2017) | 10.1103/PhysRevD.96.064028 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study scalar and electromagnetic perturbations of a family of nonsingular
nonrotating black hole spacetimes that are solutions in a large class of
conformally invariant theories of gravity. The effective potential for scalar
perturbations depends on the exact form of the scaling factor. Electromagnetic
perturbatio... | [
{
"created": "Wed, 10 May 2017 08:18:50 GMT",
"version": "v1"
},
{
"created": "Wed, 20 Sep 2017 05:32:30 GMT",
"version": "v2"
},
{
"created": "Thu, 21 Sep 2017 09:32:54 GMT",
"version": "v3"
}
] | 2017-09-22 | [
[
"Toshmatov",
"Bobir",
""
],
[
"Bambi",
"Cosimo",
""
],
[
"Ahmedov",
"Bobomurat",
""
],
[
"Stuchlík",
"Zdeněk",
""
],
[
"Schee",
"Jan",
""
]
] | We study scalar and electromagnetic perturbations of a family of nonsingular nonrotating black hole spacetimes that are solutions in a large class of conformally invariant theories of gravity. The effective potential for scalar perturbations depends on the exact form of the scaling factor. Electromagnetic perturbations... |
0904.3263 | Ettore Minguzzi | E. Minguzzi | In a distinguishing spacetime the horismos relation generates the causal
relation | 7 pages, Latex2e | Class.Quant.Grav.26:165005,2009 | 10.1088/0264-9381/26/16/165005 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | It is proved that in a distinguishing spacetime the horismos relation
E^+=J^+\I^+ generates the causal relation J^+. In other words two causally
related events are joined by a chain of horismotically related events, or
again, the causal relation is the smallest transitive relation containing the
horismos relation. Th... | [
{
"created": "Tue, 21 Apr 2009 14:44:10 GMT",
"version": "v1"
}
] | 2011-06-24 | [
[
"Minguzzi",
"E.",
""
]
] | It is proved that in a distinguishing spacetime the horismos relation E^+=J^+\I^+ generates the causal relation J^+. In other words two causally related events are joined by a chain of horismotically related events, or again, the causal relation is the smallest transitive relation containing the horismos relation. The ... |
0801.0834 | Lorenzo Iorio | Lorenzo Iorio | Determination of tidal distortion in the eclipsing binary system V621
Cen by means of deviations from the third Kepler law | Latex, 6 pages, no figures, 1 table. To appear in New Astronomy | NewAstron.13:473-475,2008 | 10.1016/j.newast.2008.01.004 | null | gr-qc astro-ph | null | In this paper we determine the tidal distortion parameter k_m of the
secondary partner (mass loser) of the semi-detached eclipsing binary system
V621 Cen by comparing the phenomenologically determined orbital period
P_b=3.683549(11) d to the Keplerian one P^Kep computed with the values of the
relevant system's parame... | [
{
"created": "Sun, 6 Jan 2008 01:59:15 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Iorio",
"Lorenzo",
""
]
] | In this paper we determine the tidal distortion parameter k_m of the secondary partner (mass loser) of the semi-detached eclipsing binary system V621 Cen by comparing the phenomenologically determined orbital period P_b=3.683549(11) d to the Keplerian one P^Kep computed with the values of the relevant system's paramete... |
gr-qc/0510071 | Jeferson Oliveira de | Jeferson de Oliveira, Carlos Eduardo Pellicer de Oliveira | Solutions for Klein-Gordon equation in Randall-Sundrum-Kerr scenario | 2 pages, revtex4, contribution to conference "100 years of
Relativity", Sao Paulo, Brazil, Aug. 22-24, 2005 | Braz.J.Phys. 35 (2005) 1127-1128 | null | null | gr-qc | null | We study the scalar perturbations of rotating black holes in framework of
extra dimensions type Randall-Sundrum(RS).
| [
{
"created": "Sat, 15 Oct 2005 15:10:54 GMT",
"version": "v1"
},
{
"created": "Tue, 18 Oct 2005 19:53:39 GMT",
"version": "v2"
}
] | 2007-05-23 | [
[
"de Oliveira",
"Jeferson",
""
],
[
"de Oliveira",
"Carlos Eduardo Pellicer",
""
]
] | We study the scalar perturbations of rotating black holes in framework of extra dimensions type Randall-Sundrum(RS). |
1912.12540 | Mehran Kamarpour | Mehran Kamarpour | Magnetogenesis in Higgs inflation | 12 pages,6 figures | General Relativity and Gravitation-Revised version published in 14
May 2021 | 10.1007/s10714-021-02824-0 | 53 | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the generation of magnetic fields in the Higgs inflation model with
the axial coupling in order to break the conformal invariance of the Maxwell
action and produce strong magnetic fields. We consider radiatively corrected
Higgs inflation potential. In comparison to the Starobinsky potential, we
obtain an ext... | [
{
"created": "Sat, 28 Dec 2019 23:06:31 GMT",
"version": "v1"
}
] | 2021-08-17 | [
[
"Kamarpour",
"Mehran",
""
]
] | We study the generation of magnetic fields in the Higgs inflation model with the axial coupling in order to break the conformal invariance of the Maxwell action and produce strong magnetic fields. We consider radiatively corrected Higgs inflation potential. In comparison to the Starobinsky potential, we obtain an extra... |
gr-qc/0309014 | Wladimir Belayev | D. Yu. Tsipenyuk and W. B. Belayev | Explanation of the anomalous acceleration of a free moving body in the
frame of extended space model | null | null | null | null | gr-qc astro-ph | null | We consider (1+4) generalization of classical electrodynamics including
gravitation field. With this approach it is assumed a presence of an extra
component of extended field stress tensor, whose physical interpretation is
based on necessity to obtain Newton gravity law as particular case. In model
analyzed in presen... | [
{
"created": "Wed, 3 Sep 2003 13:16:29 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Tsipenyuk",
"D. Yu.",
""
],
[
"Belayev",
"W. B.",
""
]
] | We consider (1+4) generalization of classical electrodynamics including gravitation field. With this approach it is assumed a presence of an extra component of extended field stress tensor, whose physical interpretation is based on necessity to obtain Newton gravity law as particular case. In model analyzed in present ... |
gr-qc/0104006 | J. B. Moortgat | Joachim Moortgat | Watching Gravitational Waves | Supervisors: Gerard 't Hooft and Jan Kuijpers | null | null | null | gr-qc | null | In the vicinity of merging neutron strar binaries or supernova remnants,
gravitational waves can interact with the prevailing strong magnetic fields.
The resulting partial conversion of gravitational waves into electromagnetic
(radio) waves might prove to be an indirect way of detecting gravitational
waves from such ... | [
{
"created": "Mon, 2 Apr 2001 14:23:21 GMT",
"version": "v1"
},
{
"created": "Wed, 4 Apr 2001 12:26:20 GMT",
"version": "v2"
}
] | 2007-05-23 | [
[
"Moortgat",
"Joachim",
""
]
] | In the vicinity of merging neutron strar binaries or supernova remnants, gravitational waves can interact with the prevailing strong magnetic fields. The resulting partial conversion of gravitational waves into electromagnetic (radio) waves might prove to be an indirect way of detecting gravitational waves from such so... |
0711.2469 | Barry Wardell | Adrian C. Ottewill and Barry Wardell | Quasi-local contribution to the scalar self-force: Geodesic Motion | Final Phys. Rev. D version. 24 pages, revtex4. Minor typos corrected | Phys.Rev.D77:104002,2008 | 10.1103/PhysRevD.77.104002 | null | gr-qc | null | We consider a scalar charge travelling in a curved background spacetime. We
calculate the quasi-local contribution to the scalar self-force experienced by
such a particle following a geodesic in a general spacetime. We also show that
if we assume a massless field and a vacuum background spacetime, the expression
for ... | [
{
"created": "Thu, 15 Nov 2007 17:33:55 GMT",
"version": "v1"
},
{
"created": "Tue, 29 Jan 2008 14:38:53 GMT",
"version": "v2"
},
{
"created": "Mon, 5 May 2008 17:04:33 GMT",
"version": "v3"
}
] | 2008-11-26 | [
[
"Ottewill",
"Adrian C.",
""
],
[
"Wardell",
"Barry",
""
]
] | We consider a scalar charge travelling in a curved background spacetime. We calculate the quasi-local contribution to the scalar self-force experienced by such a particle following a geodesic in a general spacetime. We also show that if we assume a massless field and a vacuum background spacetime, the expression for th... |
2206.03407 | F. S. Guzman | Francisco S. Guzman | Possible formation mechanism of multistate gravitational atoms | 6 pages, 8 figures, matches the accepted version | Phys. Rev. D 105, 123535 (2022) | 10.1103/PhysRevD.105.123535 | null | gr-qc astro-ph.GA | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The collision of two equilibrium ground state solutions of the
Schr\"odinger-Poisson (SP) system, in orthogonal states, is proposed as a
formation mechanism of mixed state solutions of the SP system with spherical
and first dipolar components. The collisions are simulated by solving
numerically the SP system for two ... | [
{
"created": "Tue, 7 Jun 2022 15:56:52 GMT",
"version": "v1"
},
{
"created": "Thu, 30 Jun 2022 03:20:27 GMT",
"version": "v2"
}
] | 2022-07-01 | [
[
"Guzman",
"Francisco S.",
""
]
] | The collision of two equilibrium ground state solutions of the Schr\"odinger-Poisson (SP) system, in orthogonal states, is proposed as a formation mechanism of mixed state solutions of the SP system with spherical and first dipolar components. The collisions are simulated by solving numerically the SP system for two or... |
1311.0420 | Michalis Agathos | Michalis Agathos, Walter Del Pozzo, Tjonnie G.F. Li, Chris Van Den
Broeck, John Veitch, Salvatore Vitale | TIGER: A data analysis pipeline for testing the strong-field dynamics of
general relativity with gravitational wave signals from coalescing compact
binaries | 12 pages, 9 figures. Version as appears in Phys. Rev. D | Phys. Rev. D 89, 082001 (2014) | 10.1103/PhysRevD.89.082001 | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The direct detection of gravitational waves with upcoming second-generation
gravitational wave detectors such as Advanced LIGO and Virgo will allow us to
probe the genuinely strong-field dynamics of general relativity (GR) for the
first time. We present a data analysis pipeline called TIGER (Test
Infrastructure for G... | [
{
"created": "Sun, 3 Nov 2013 01:06:15 GMT",
"version": "v1"
},
{
"created": "Fri, 6 Jun 2014 22:12:17 GMT",
"version": "v2"
}
] | 2014-06-10 | [
[
"Agathos",
"Michalis",
""
],
[
"Del Pozzo",
"Walter",
""
],
[
"Li",
"Tjonnie G. F.",
""
],
[
"Broeck",
"Chris Van Den",
""
],
[
"Veitch",
"John",
""
],
[
"Vitale",
"Salvatore",
""
]
] | The direct detection of gravitational waves with upcoming second-generation gravitational wave detectors such as Advanced LIGO and Virgo will allow us to probe the genuinely strong-field dynamics of general relativity (GR) for the first time. We present a data analysis pipeline called TIGER (Test Infrastructure for GEn... |
1403.3701 | Sergio Giardino | Sergio Giardino | Axisymmmetric empty space: light propagation, orbits and dark matter | null | Journal of Modern Physics, 2014, 5, 1402-1411 | 10.4236/jmp.2014.515141 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | This study presents a axisymmetric solution of the Einstein equations for
empty space. The geometry is studied by determining its Petrov classification
and Killing vectors. Light propagation, orbital motion and asymptotic and
Newtonian limits are also studied. Additionally, cosmological applications of
the geometry a... | [
{
"created": "Fri, 14 Mar 2014 20:14:08 GMT",
"version": "v1"
},
{
"created": "Thu, 18 Sep 2014 22:39:10 GMT",
"version": "v2"
}
] | 2014-09-22 | [
[
"Giardino",
"Sergio",
""
]
] | This study presents a axisymmetric solution of the Einstein equations for empty space. The geometry is studied by determining its Petrov classification and Killing vectors. Light propagation, orbital motion and asymptotic and Newtonian limits are also studied. Additionally, cosmological applications of the geometry as ... |
gr-qc/0012005 | Palma Guillermo | G. Palma and V.H. Cardenas (USACH) | Resonance enhancement of particle production during reheating | 4 pages, 4 figures(eps), using RevTex | Class.Quant.Grav. 18 (2001) 2233 | 10.1088/0264-9381/18/11/316 | null | gr-qc hep-ph | null | We found a consistent equation of reheating after inflation, which shows that
for small quantum fluctuations the frequencies of resonance are slighted
different from the standard ones. Quantum interference is taken into account
and we found that at large fluctuations the process mimics very well the usual
parametric ... | [
{
"created": "Fri, 1 Dec 2000 18:27:53 GMT",
"version": "v1"
},
{
"created": "Wed, 11 Apr 2001 22:18:00 GMT",
"version": "v2"
}
] | 2009-10-31 | [
[
"Palma",
"G.",
"",
"USACH"
],
[
"Cardenas",
"V. H.",
"",
"USACH"
]
] | We found a consistent equation of reheating after inflation, which shows that for small quantum fluctuations the frequencies of resonance are slighted different from the standard ones. Quantum interference is taken into account and we found that at large fluctuations the process mimics very well the usual parametric re... |
gr-qc/0403109 | Jerzy Matyjasek | Jerzy Matyjasek | Extremal limit of the regular charged black holes in nonlinear
electrodynamics | null | Phys.Rev. D70 (2004) 047504 | 10.1103/PhysRevD.70.047504 | null | gr-qc | null | The near horizon limit of the extreme nonlinear black hole is investigated.
It is shown that resulting geometry belongs to the AdS2xS2 class with different
modules of curvatures of subspaces and could be described in terms of the
Lambert functions. It is demonstrated that the considered class of Lagrangians
does not ... | [
{
"created": "Sun, 28 Mar 2004 19:24:31 GMT",
"version": "v1"
}
] | 2009-11-10 | [
[
"Matyjasek",
"Jerzy",
""
]
] | The near horizon limit of the extreme nonlinear black hole is investigated. It is shown that resulting geometry belongs to the AdS2xS2 class with different modules of curvatures of subspaces and could be described in terms of the Lambert functions. It is demonstrated that the considered class of Lagrangians does not ad... |
gr-qc/0603101 | Jose' P. S. Lemos | Jose' P. S. Lemos, Vilson T. Zanchin | Gravitational magnetic monopoles and Majumdar-Papapetrou stars | 38 pages,9 Figures, minor changes | J.Math.Phys. 47 (2006) 042504 | 10.1063/1.2184766 | null | gr-qc astro-ph hep-th | null | A large amount of work has been dedicated to studying general relativity
coupled to non-Abelian Yang-Mills type theories. It has been shown that the
magnetic monopole, a solution of the Yang-Mills-Higgs equations can be coupled
to gravitation. For a low Higgs mass there are regular solutions, and for a
sufficiently m... | [
{
"created": "Sat, 25 Mar 2006 19:32:12 GMT",
"version": "v1"
},
{
"created": "Sat, 1 Apr 2006 18:46:56 GMT",
"version": "v2"
}
] | 2009-11-11 | [
[
"Lemos",
"Jose' P. S.",
""
],
[
"Zanchin",
"Vilson T.",
""
]
] | A large amount of work has been dedicated to studying general relativity coupled to non-Abelian Yang-Mills type theories. It has been shown that the magnetic monopole, a solution of the Yang-Mills-Higgs equations can be coupled to gravitation. For a low Higgs mass there are regular solutions, and for a sufficiently mas... |
1807.08313 | Adriano Vigan\`o | Matteo Broccoli and Adriano Vigan\`o | Electromagnetic self-force in curved spacetime: New insights from the
Janis-Newman algorithm | 4 pages. Minor corrections, added references. Version accepted by
Physical Review D | Phys. Rev. D 98, 084007 (2018) | 10.1103/PhysRevD.98.084007 | null | gr-qc astro-ph.HE hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present an original approach to compute the electromagnetic self-force
acting on a static charge in Kerr spacetime. Our approach is based on an
improved version of the Janis-Newman algorithm and extends its range of
applicability. It leads to a closed expression which generalizes the existing
one and, since it doe... | [
{
"created": "Sun, 22 Jul 2018 16:34:12 GMT",
"version": "v1"
},
{
"created": "Fri, 27 Jul 2018 13:44:37 GMT",
"version": "v2"
},
{
"created": "Mon, 8 Oct 2018 13:10:19 GMT",
"version": "v3"
}
] | 2018-10-10 | [
[
"Broccoli",
"Matteo",
""
],
[
"Viganò",
"Adriano",
""
]
] | We present an original approach to compute the electromagnetic self-force acting on a static charge in Kerr spacetime. Our approach is based on an improved version of the Janis-Newman algorithm and extends its range of applicability. It leads to a closed expression which generalizes the existing one and, since it does ... |
2303.08002 | Hristu Culetu | Hristu Culetu | A regular version of the extremal RN spacetime | 10 pages, no figures, accepted by Phys. Lett. B 839C (2023) 137775 | null | 10.1016/j.physletb.2023.137775 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A modified extremal Reissner-Nordstrom geometry, void of singularities, is
proposed in this work, by means of an exponential factor depending on a
positive constant $k$. All the metric coefficients are positive and finite and
the spacetime has no any horizon. The curvature invariants are regular at the
origin of coor... | [
{
"created": "Sun, 12 Mar 2023 20:48:57 GMT",
"version": "v1"
}
] | 2023-03-15 | [
[
"Culetu",
"Hristu",
""
]
] | A modified extremal Reissner-Nordstrom geometry, void of singularities, is proposed in this work, by means of an exponential factor depending on a positive constant $k$. All the metric coefficients are positive and finite and the spacetime has no any horizon. The curvature invariants are regular at the origin of coordi... |
1201.1255 | Anna McCoy | A. E. McCoy | Gamma Ray Bursts, The Principle of Relative Locality and Connection
Normal Coordinates | 20 pages, 1 figure. Essay submitted as partial fulfillment of the
requirements for the degree of masters of science, University of
Waterloo/Perimeter Institute of Theoretical Physics. arXiv admin note: text
overlap with arXiv:1103.5626 by other authors | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The launch of the Fermi telescope in 2008 opened up the possibility of
measuring the energy dependence of the speed of light by considering the time
delay in the arrival of gamma ray bursts emitted simultaneously from very
distant sources.The expected time delay between the arrival of gamma rays of
significantly diff... | [
{
"created": "Wed, 4 Jan 2012 03:45:21 GMT",
"version": "v1"
}
] | 2012-01-06 | [
[
"McCoy",
"A. E.",
""
]
] | The launch of the Fermi telescope in 2008 opened up the possibility of measuring the energy dependence of the speed of light by considering the time delay in the arrival of gamma ray bursts emitted simultaneously from very distant sources.The expected time delay between the arrival of gamma rays of significantly differ... |
1106.2241 | Michael Hohensee | Michael A. Hohensee and Holger Mueller | Precision tests of General Relativity with Matter Waves | Conference Proceedings for talk given in January, 2011 at the Winter
Colloquium on the Physics of Quantum Electronics. Submitted to the Journal of
Modern Optics | J. Mod. Opt., v58, 2021-2027, 2011 | 10.1080/09500340.2011.606376 | null | gr-qc hep-ph quant-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We review the physics of atoms and clocks in weakly curved spacetime, and how
each may be used to test the Einstein Equivalence Principle (EEP) in the
context of the minimal Standard Model Extension (mSME). We find that
conventional clocks and matter-wave interferometers are sensitive to the same
kinds of EEP-violati... | [
{
"created": "Sat, 11 Jun 2011 14:24:33 GMT",
"version": "v1"
}
] | 2012-02-24 | [
[
"Hohensee",
"Michael A.",
""
],
[
"Mueller",
"Holger",
""
]
] | We review the physics of atoms and clocks in weakly curved spacetime, and how each may be used to test the Einstein Equivalence Principle (EEP) in the context of the minimal Standard Model Extension (mSME). We find that conventional clocks and matter-wave interferometers are sensitive to the same kinds of EEP-violating... |
gr-qc/0703125 | Willians Barreto | L. Herrera, W. Barreto, J. Carot and A. Di Prisco | Why does gravitational radiation produce vorticity? | 9 pages; to appear in Classical and Quantum Gravity | Class.Quant.Grav.24:2645-2651,2007 | 10.1088/0264-9381/24/10/010 | null | gr-qc | null | We calculate the vorticity of world--lines of observers at rest in a
Bondi--Sachs frame, produced by gravitational radiation, in a general Sachs
metric. We claim that such an effect is related to the super--Poynting vector,
in a similar way as the existence of the electromagnetic Poynting vector is
related to the vor... | [
{
"created": "Mon, 26 Mar 2007 15:17:26 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Herrera",
"L.",
""
],
[
"Barreto",
"W.",
""
],
[
"Carot",
"J.",
""
],
[
"Di Prisco",
"A.",
""
]
] | We calculate the vorticity of world--lines of observers at rest in a Bondi--Sachs frame, produced by gravitational radiation, in a general Sachs metric. We claim that such an effect is related to the super--Poynting vector, in a similar way as the existence of the electromagnetic Poynting vector is related to the vorti... |
2108.10040 | J\"urgen Struckmeier | J. Struckmeier, A. van de Venn, and D. Vasak | Identity for scalar-valued functions of tensors and its applications to
energy-momentum tensors in classical field theories and gravity | 11 pages | Astron. Nachr. / AN. 2022;e20220074 | 10.1002/asna.20220074 | null | gr-qc math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We prove a theorem on scalar-valued functions of tensors, where ``scalar''
refers to absolute scalars as well as relative scalars of weight $w$. The
present work thereby generalizes an identity referred to earlier by Rosenfeld
in his publication ``On the energy-momentum tensor''. The theorem provides a
$(1,1)$-tensor... | [
{
"created": "Mon, 23 Aug 2021 10:11:48 GMT",
"version": "v1"
},
{
"created": "Thu, 16 Sep 2021 14:01:15 GMT",
"version": "v2"
},
{
"created": "Tue, 6 Sep 2022 11:02:30 GMT",
"version": "v3"
},
{
"created": "Sat, 12 Nov 2022 17:34:25 GMT",
"version": "v4"
}
] | 2022-11-15 | [
[
"Struckmeier",
"J.",
""
],
[
"van de Venn",
"A.",
""
],
[
"Vasak",
"D.",
""
]
] | We prove a theorem on scalar-valued functions of tensors, where ``scalar'' refers to absolute scalars as well as relative scalars of weight $w$. The present work thereby generalizes an identity referred to earlier by Rosenfeld in his publication ``On the energy-momentum tensor''. The theorem provides a $(1,1)$-tensor i... |
1203.1844 | Pedro Castelo Ferreira Dr. | P. Castelo Ferreira | Planetary motion on an expanding locally anisotropic background | 27 pages, 3 figures, 4 tables v2: published version, measurement
standard is fixed over time (dAU/dt = 0, dG/dt \neq 0) v1: unpublished
version, measurement standard is varying over time (dAU/dt \neq 0, dG/dt = 0) | Acta. Appl. Math. 131 (2014) 155-177 | 10.1007/s10440-013-9852-1 | null | gr-qc astro-ph.SR hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this work are computed analytical solutions for orbital motion on a
background described by an Expanding Locally Anisotropic (ELA) metric ansatz.
This metric interpolates between the Schwarzschild metric near the central mass
and the Robertson-Walker metric describing the expanding cosmological
background far from... | [
{
"created": "Thu, 8 Mar 2012 16:37:10 GMT",
"version": "v1"
},
{
"created": "Mon, 6 Nov 2017 11:50:54 GMT",
"version": "v2"
}
] | 2017-11-07 | [
[
"Ferreira",
"P. Castelo",
""
]
] | In this work are computed analytical solutions for orbital motion on a background described by an Expanding Locally Anisotropic (ELA) metric ansatz. This metric interpolates between the Schwarzschild metric near the central mass and the Robertson-Walker metric describing the expanding cosmological background far from t... |
2005.00307 | Muhammed Amir | Muhammed Amir, Md Sabir Ali, Sunil D. Maharaj | Rotating five-dimensional electrically charged Bardeen regular black
holes | 24 pages, 8 figures, accepted for publication in CQG | Class. Quantum Grav. 37, 145014 (2020) | 10.1088/1361-6382/ab8eb7 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We derive a rotating counterpart of the five-dimensional electrically charged
Bardeen regular black holes spacetime by employing the Giampieri algorithm on
static one. The associated nonlinear electrodynamics source is computed in
order to justify the rotating solution. We thoroughly discuss the energy
conditions and... | [
{
"created": "Fri, 1 May 2020 10:49:59 GMT",
"version": "v1"
}
] | 2020-08-19 | [
[
"Amir",
"Muhammed",
""
],
[
"Ali",
"Md Sabir",
""
],
[
"Maharaj",
"Sunil D.",
""
]
] | We derive a rotating counterpart of the five-dimensional electrically charged Bardeen regular black holes spacetime by employing the Giampieri algorithm on static one. The associated nonlinear electrodynamics source is computed in order to justify the rotating solution. We thoroughly discuss the energy conditions and t... |
0906.2616 | Kazuya Fujio | Kazuya Fujio, Toshifumi Futamase | Appearance of classical Mixmaster Universe from the No-Boundary Quantum
State | 14 pages, 14 figures | Phys.Rev.D80:023504,2009 | 10.1103/PhysRevD.80.023504 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate the appearance of the classical anisotropic universe from the
no-boundary quantum state according to the prescription proposed by Hartle,
Hawking and Hertog. Our model is homogeneous, anisotropic, closed universes
with a minimally coupled scalar field and cosmological constant. We found that
there are ... | [
{
"created": "Mon, 15 Jun 2009 06:25:45 GMT",
"version": "v1"
}
] | 2009-09-02 | [
[
"Fujio",
"Kazuya",
""
],
[
"Futamase",
"Toshifumi",
""
]
] | We investigate the appearance of the classical anisotropic universe from the no-boundary quantum state according to the prescription proposed by Hartle, Hawking and Hertog. Our model is homogeneous, anisotropic, closed universes with a minimally coupled scalar field and cosmological constant. We found that there are an... |
0808.3240 | Kamal Nandi | Kamal K. Nandi, Ilnur Nigmatzyanov, Ramil Izmailov and Nail G.
Migranov | New Features of Extended Wormhole Solutions in the Scalar Field Gravity
Theories | 19 pages | Class.Quant.Grav.25:165020,2008 | 10.1088/0264-9381/25/16/165020 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The present paper reports interesting new features that wormhole solutions in
the scalar field gravity theory have. To demonstrate these, we obtain, by using
a slightly modified form of the Matos-Nunez algorithm, an extended class of
asymptotically flat wormhole solutions belonging to Einstein minimally coupled
scala... | [
{
"created": "Sun, 24 Aug 2008 10:40:14 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Nandi",
"Kamal K.",
""
],
[
"Nigmatzyanov",
"Ilnur",
""
],
[
"Izmailov",
"Ramil",
""
],
[
"Migranov",
"Nail G.",
""
]
] | The present paper reports interesting new features that wormhole solutions in the scalar field gravity theory have. To demonstrate these, we obtain, by using a slightly modified form of the Matos-Nunez algorithm, an extended class of asymptotically flat wormhole solutions belonging to Einstein minimally coupled scalar ... |
1406.2611 | Lee Smolin | Lee Smolin | Positive energy in quantum gravity | 14 pages, no figures | Phys. Rev. D 90, 044034 (2014) | 10.1103/PhysRevD.90.044034 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | This paper addresses the question of whether Witten's proof of positive ADM
energy for classical general relativity can be extended to give a proof of
positive energy for a non-perturbative quantization of general relativity. To
address this question, a set of conditions is shown to be sufficient for
showing the posi... | [
{
"created": "Tue, 10 Jun 2014 16:10:50 GMT",
"version": "v1"
}
] | 2014-08-20 | [
[
"Smolin",
"Lee",
""
]
] | This paper addresses the question of whether Witten's proof of positive ADM energy for classical general relativity can be extended to give a proof of positive energy for a non-perturbative quantization of general relativity. To address this question, a set of conditions is shown to be sufficient for showing the positi... |
2209.14394 | Flavio Bombacigno | S. Boudet, F. Bombacigno, F. Moretti and G. J. Olmo | Torsional birefringence in metric-affine Chern-Simons gravity:
gravitational waves in late-time cosmology | version accepted for publication in JCAP | JCAP01(2023)026 | 10.1088/1475-7516/2023/01/026 | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | In the context of the metric-affine Chern-Simons gravity endowed with
projective invariance, we derive analytical solutions for torsion and
nonmetricity in the homogeneous and isotropic cosmological case, described by a
flat Friedmann-Robertson-Walker metric. We discuss in some details the general
properties of the c... | [
{
"created": "Wed, 28 Sep 2022 19:35:58 GMT",
"version": "v1"
},
{
"created": "Tue, 4 Oct 2022 09:53:35 GMT",
"version": "v2"
},
{
"created": "Mon, 9 Jan 2023 20:30:17 GMT",
"version": "v3"
}
] | 2023-01-24 | [
[
"Boudet",
"S.",
""
],
[
"Bombacigno",
"F.",
""
],
[
"Moretti",
"F.",
""
],
[
"Olmo",
"G. J.",
""
]
] | In the context of the metric-affine Chern-Simons gravity endowed with projective invariance, we derive analytical solutions for torsion and nonmetricity in the homogeneous and isotropic cosmological case, described by a flat Friedmann-Robertson-Walker metric. We discuss in some details the general properties of the cos... |
gr-qc/0206018 | Oleg Zaslavskii | O. B. Zaslavskii | Thermodynamics of black holes with an infinite effective area of a
horizon | 24 pages. Accepted for publication in Class. Quant. Grav | Class.Quant.Grav. 19 (2002) 3783-3798 | 10.1088/0264-9381/19/14/317 | null | gr-qc hep-th | null | In some kinds of classical dilaton theory there exist black holes with (i)
infinite horizon area $A$ or infinite $F$ (the coefficient at curvature in
Lagrangian) and (ii) zero Hawking temperature $T_{H}$. For a generic static
black hole, without an assumption about spherical symmetry, we show that
infinite $A$ is com... | [
{
"created": "Thu, 6 Jun 2002 17:46:11 GMT",
"version": "v1"
}
] | 2009-11-07 | [
[
"Zaslavskii",
"O. B.",
""
]
] | In some kinds of classical dilaton theory there exist black holes with (i) infinite horizon area $A$ or infinite $F$ (the coefficient at curvature in Lagrangian) and (ii) zero Hawking temperature $T_{H}$. For a generic static black hole, without an assumption about spherical symmetry, we show that infinite $A$ is compa... |
gr-qc/0406017 | Mu-Lin Yan | Mu-Lin Yan, Hua Bai | Quantum horizon and thermodynamics of black hole | 20 pages; LaTex file; No figure. To appear in "Progress in GR and QC
Research", Nova Science Pub. Inc | null | null | null | gr-qc hep-ph hep-th | null | A semi-classical reasoning leads to the non-commutativity of space and time
coordinates near the horizon of static non-extreme black hole, and renders the
classical horizon spreading to {\it Quantum Horizon} . In terms of the
background metric of the black hole with the {\it Quantum Horizon}, a quantum
field theory i... | [
{
"created": "Fri, 4 Jun 2004 15:08:34 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Yan",
"Mu-Lin",
""
],
[
"Bai",
"Hua",
""
]
] | A semi-classical reasoning leads to the non-commutativity of space and time coordinates near the horizon of static non-extreme black hole, and renders the classical horizon spreading to {\it Quantum Horizon} . In terms of the background metric of the black hole with the {\it Quantum Horizon}, a quantum field theory in ... |
2006.07122 | Wei-Liang Qian | Wei-Liang Qian, Kai Lin, Jian-Pin Wu, Bin Wang, and Rui-Hong Yue | On quasinormal frequencies of black hole perturbations with an external
source | 17 pages, 3 figures, accepted for publication on EPJC | null | 10.1140/epjc/s10052-020-08539-x | null | gr-qc astro-ph.HE hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In the study of perturbations around black hole configurations, whether an
external source can influence the perturbation behavior is an interesting topic
to investigate. When the source acts as an initial pulse, it is intuitively
acceptable that the existing quasinormal frequencies will remain unchanged.
However, th... | [
{
"created": "Fri, 12 Jun 2020 12:30:11 GMT",
"version": "v1"
},
{
"created": "Tue, 4 Aug 2020 02:54:42 GMT",
"version": "v2"
},
{
"created": "Sun, 11 Oct 2020 12:49:56 GMT",
"version": "v3"
},
{
"created": "Thu, 15 Oct 2020 04:00:17 GMT",
"version": "v4"
},
{
"cr... | 2020-12-02 | [
[
"Qian",
"Wei-Liang",
""
],
[
"Lin",
"Kai",
""
],
[
"Wu",
"Jian-Pin",
""
],
[
"Wang",
"Bin",
""
],
[
"Yue",
"Rui-Hong",
""
]
] | In the study of perturbations around black hole configurations, whether an external source can influence the perturbation behavior is an interesting topic to investigate. When the source acts as an initial pulse, it is intuitively acceptable that the existing quasinormal frequencies will remain unchanged. However, the ... |
2310.02338 | Bogdan Veklych | Bogdan Veklych | Is a Quantum Gravity Era Necessary? | (For the moderator: corrected two typos in section 4,
"direction"->"dimension" and "neutrino"->"antineutrino") | null | null | null | gr-qc | http://creativecommons.org/licenses/by-sa/4.0/ | We present the first published framework of the entirety of cosmological
history which is thoroughly classical (without any quantum-gravitational era or
singularities) and which passes all the known extensive consistency checks on
such a model, and discuss some of its possible cosmological implications, such
as its a... | [
{
"created": "Tue, 3 Oct 2023 18:21:27 GMT",
"version": "v1"
},
{
"created": "Wed, 14 Aug 2024 05:45:21 GMT",
"version": "v2"
}
] | 2024-08-15 | [
[
"Veklych",
"Bogdan",
""
]
] | We present the first published framework of the entirety of cosmological history which is thoroughly classical (without any quantum-gravitational era or singularities) and which passes all the known extensive consistency checks on such a model, and discuss some of its possible cosmological implications, such as its abi... |
2402.03266 | Igor Bogush Dr. | Igor Bogush, Kirill Kobialko, Dmitri Gal'tsov | Constructing massive particles surfaces in static spacetimes | 8 pages, revtex4-1 | null | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The procedure for constructing the massive particle surfaces in static
space-times is described in detail and the equivalence of the main results with
the results of the geodesic approach is demonstrated.
| [
{
"created": "Mon, 5 Feb 2024 18:22:42 GMT",
"version": "v1"
}
] | 2024-02-06 | [
[
"Bogush",
"Igor",
""
],
[
"Kobialko",
"Kirill",
""
],
[
"Gal'tsov",
"Dmitri",
""
]
] | The procedure for constructing the massive particle surfaces in static space-times is described in detail and the equivalence of the main results with the results of the geodesic approach is demonstrated. |
1912.00900 | Surajit Kalita | Surajit Kalita (IISc), Banibrata Mukhopadhyay (IISc) and T. R.
Govindarajan (IMSc) | Significantly super-Chandrasekhar mass-limit of white dwarfs in
noncommutative geometry | 19 pages including 1 figure; text is modified and references are
updated: Accepted for publication in IJMPD | IJMPD, 30, 5 (2021) 2150034 | 10.1142/S0218271821500346 | null | gr-qc astro-ph.HE astro-ph.SR hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Chandrasekhar made the startling discovery about nine decades back that the
mass of compact object white dwarf has a limiting value, once nuclear fusion
reactions stop therein. This is the Chandrasekhar mass-limit, which is
$\sim1.4M_\odot$ for a non-rotating non-magnetized white dwarf. On approaching
this limiting m... | [
{
"created": "Tue, 26 Nov 2019 19:00:04 GMT",
"version": "v1"
},
{
"created": "Wed, 1 Jul 2020 14:07:49 GMT",
"version": "v2"
},
{
"created": "Wed, 13 Jan 2021 05:14:07 GMT",
"version": "v3"
}
] | 2021-04-27 | [
[
"Kalita",
"Surajit",
"",
"IISc"
],
[
"Mukhopadhyay",
"Banibrata",
"",
"IISc"
],
[
"Govindarajan",
"T. R.",
"",
"IMSc"
]
] | Chandrasekhar made the startling discovery about nine decades back that the mass of compact object white dwarf has a limiting value, once nuclear fusion reactions stop therein. This is the Chandrasekhar mass-limit, which is $\sim1.4M_\odot$ for a non-rotating non-magnetized white dwarf. On approaching this limiting mas... |
gr-qc/9512044 | Francesco Belgiorno | F.Belgiorno and M.Martellini | Hawking Radiation Entropy and Horizon Divergences | 32 pages, uses Phyzzx | Phys.Rev. D53 (1996) 7073-7081 | 10.1103/PhysRevD.53.7073 | IFUM 521 (11/95) | gr-qc | null | We review the problem of divergences in one--loop thermodynamical quantities
for matter fields in thermal equilibrium on a black hole background. We discuss
a number of results obtained for various thermodynamical quantities. Then we
discuss the ansatz called ``literal interpretation" of zeroth law of black hole
mech... | [
{
"created": "Thu, 28 Dec 1995 17:11:38 GMT",
"version": "v1"
}
] | 2009-10-28 | [
[
"Belgiorno",
"F.",
""
],
[
"Martellini",
"M.",
""
]
] | We review the problem of divergences in one--loop thermodynamical quantities for matter fields in thermal equilibrium on a black hole background. We discuss a number of results obtained for various thermodynamical quantities. Then we discuss the ansatz called ``literal interpretation" of zeroth law of black hole mechan... |
gr-qc/0612169 | Alikram Aliev | Alikram N. Aliev | Higher Dimensional Rotating Charged Black Holes | To appear in the Proceedings of the Eleventh Marcel Grossmann
Meeting, Berlin, Germany, 23-29 Jule 2006, 3pp., World Scientific, Singapore
(2007) | null | null | null | gr-qc | null | We discuss a new analytic solution to the Einstein-Maxwell field equations
that describes electrically charged black holes with a slow rotation and with a
single angular momentum in all higher dimensions. We also compute the
gyromagnetic ratio of these black holes.
| [
{
"created": "Tue, 26 Dec 2006 21:11:36 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Aliev",
"Alikram N.",
""
]
] | We discuss a new analytic solution to the Einstein-Maxwell field equations that describes electrically charged black holes with a slow rotation and with a single angular momentum in all higher dimensions. We also compute the gyromagnetic ratio of these black holes. |
gr-qc/0012086 | Jean-Paul Mbelek | J.P. Mbelek and M. Lachieze-Rey | Theoretical Necessity of an External Scalar Field in the Kaluza-Klein
Theory (I) | 11 pages, LaTeX2e. Submitted to Classical and Quantum Gravity | null | null | null | gr-qc | null | We show that the principle of least action is generally inconsistent with the
usual Kaluza-Klein program, the higher dimensional Einstein-Hilbert action
being unbounded from below. This inconsistency is also present in other
theories with higher dimensions like supergravity. Hence, we conclude to the
necessity of an ... | [
{
"created": "Thu, 21 Dec 2000 00:29:51 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Mbelek",
"J. P.",
""
],
[
"Lachieze-Rey",
"M.",
""
]
] | We show that the principle of least action is generally inconsistent with the usual Kaluza-Klein program, the higher dimensional Einstein-Hilbert action being unbounded from below. This inconsistency is also present in other theories with higher dimensions like supergravity. Hence, we conclude to the necessity of an ex... |
1603.08405 | Philip D. Mannheim | Philip D. Mannheim | Conformal Invariance and the Metrication of the Fundamental Forces | revtex4, 7 pages. Essay written for the Gravity Research Foundation
2016 Awards for Essays on Gravitation | null | 10.1142/S021827181644003X | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We revisit Weyl's metrication (geometrization) of electromagnetism. We show
that by making Weyl's proposed geometric connection be pure imaginary, not only
are we able to metricate electromagnetism, an underlying local conformal
invariance makes the geometry be strictly Riemannian and prevents observational
gravity f... | [
{
"created": "Mon, 28 Mar 2016 15:42:42 GMT",
"version": "v1"
}
] | 2016-11-15 | [
[
"Mannheim",
"Philip D.",
""
]
] | We revisit Weyl's metrication (geometrization) of electromagnetism. We show that by making Weyl's proposed geometric connection be pure imaginary, not only are we able to metricate electromagnetism, an underlying local conformal invariance makes the geometry be strictly Riemannian and prevents observational gravity fro... |
1207.3469 | Pankaj S. Joshi | Ravindra V. Saraykar and Pankaj S. Joshi | A Note on Genericity and Stability of Black Holes and Naked
Singularities in Dust Collapse | 6 pages, LaTex | null | null | null | gr-qc astro-ph.HE hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We comment here on the results in Ref [4] that showed naked singularities in
dynamical gravitational collapse of inhomogeneous dust to be stable but
non-generic. The definition of genericity used there is reconsidered. We point
out that genericity in terms of an open set, with a positive measure defined
suitably on t... | [
{
"created": "Sat, 14 Jul 2012 23:57:25 GMT",
"version": "v1"
}
] | 2012-07-17 | [
[
"Saraykar",
"Ravindra V.",
""
],
[
"Joshi",
"Pankaj S.",
""
]
] | We comment here on the results in Ref [4] that showed naked singularities in dynamical gravitational collapse of inhomogeneous dust to be stable but non-generic. The definition of genericity used there is reconsidered. We point out that genericity in terms of an open set, with a positive measure defined suitably on the... |
1404.1566 | Shahar Hod | Shahar Hod | Self-gravitating ring of matter in orbit around a black hole: The
innermost stable circular orbit | 11 pages | The European Physical Journal C 74, 2840 (2014) | 10.1140/epjc/s10052-014-2840-4 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study analytically a black-hole-ring system which is composed of a
stationary axisymmetric ring of particles in orbit around a perturbed Kerr
black hole of mass $M$. In particular, we calculate the shift in the orbital
frequency of the innermost stable circular orbit (ISCO) due to the finite mass
$m$ of the orbiti... | [
{
"created": "Sun, 6 Apr 2014 11:25:44 GMT",
"version": "v1"
}
] | 2015-06-19 | [
[
"Hod",
"Shahar",
""
]
] | We study analytically a black-hole-ring system which is composed of a stationary axisymmetric ring of particles in orbit around a perturbed Kerr black hole of mass $M$. In particular, we calculate the shift in the orbital frequency of the innermost stable circular orbit (ISCO) due to the finite mass $m$ of the orbiting... |
2103.05074 | Philip Beltracchi | Philip Beltracchi, Paolo Gondolo, and Emil Mottola | Surface Stress Tensor and Junction Conditions on a Rotating Null Horizon | Replaced with updated version, published at Phys. Rev. D 105, 024001
(2022) | null | 10.1103/PhysRevD.105.024001 | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | The general form of the surface stress tensor of an infinitesimally thin
shell located on a rotating null horizon is derived, when different interior
and exterior geometries are joined there. Although the induced metric on the
surface must be the same approached from either side, the first derivatives of
the metric n... | [
{
"created": "Mon, 8 Mar 2021 21:05:39 GMT",
"version": "v1"
},
{
"created": "Mon, 3 Jan 2022 21:44:17 GMT",
"version": "v2"
}
] | 2022-01-12 | [
[
"Beltracchi",
"Philip",
""
],
[
"Gondolo",
"Paolo",
""
],
[
"Mottola",
"Emil",
""
]
] | The general form of the surface stress tensor of an infinitesimally thin shell located on a rotating null horizon is derived, when different interior and exterior geometries are joined there. Although the induced metric on the surface must be the same approached from either side, the first derivatives of the metric nee... |
2308.16035 | Filip Ficek | Filip Ficek, Claude Warnick | Quasinormal modes of Reissner-Nordstr\"{o}m-AdS: the approach to
extremality | 15 pages, revised version | Class. Quantum Grav. 41 (2024) 085011 | 10.1088/1361-6382/ad35a0 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider the quasinormal spectrum of scalar and axial perturbations of the
Reissner-Nordstr\"om-AdS black hole as the horizon approaches extremality. By
considering a foliation of the black hole by spacelike surfaces which intersect
the future horizon we implement numerical methods which are well behaved up to
and... | [
{
"created": "Wed, 30 Aug 2023 13:48:52 GMT",
"version": "v1"
},
{
"created": "Wed, 3 Apr 2024 10:34:27 GMT",
"version": "v2"
}
] | 2024-04-04 | [
[
"Ficek",
"Filip",
""
],
[
"Warnick",
"Claude",
""
]
] | We consider the quasinormal spectrum of scalar and axial perturbations of the Reissner-Nordstr\"om-AdS black hole as the horizon approaches extremality. By considering a foliation of the black hole by spacelike surfaces which intersect the future horizon we implement numerical methods which are well behaved up to and i... |
gr-qc/9901070 | Nail | E.R. Bezerra de Mello, V.B. Bezerra and N.R. Khusnutdinov | Ground State Energy of Massive Scalar Field in the Global Monopole
Background | 8 pages, RevTex, no figures | null | null | null | gr-qc | null | We consider the ground state energy of scalar massive field in the spacetime
of a pointlike global monopole. Using zeta function regularization method we
obtain the heat kernel coefficients for this system. We show that the
coefficient $B_1$ contains additional contribution due to the non-trivial
topological structur... | [
{
"created": "Mon, 25 Jan 1999 18:09:44 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"de Mello",
"E. R. Bezerra",
""
],
[
"Bezerra",
"V. B.",
""
],
[
"Khusnutdinov",
"N. R.",
""
]
] | We consider the ground state energy of scalar massive field in the spacetime of a pointlike global monopole. Using zeta function regularization method we obtain the heat kernel coefficients for this system. We show that the coefficient $B_1$ contains additional contribution due to the non-trivial topological structure ... |
gr-qc/0103076 | Robert D. Klauber | Robert D. Klauber | New Perspectives on the Relativistically Rotating Disk and
Non-time-orthogonal Reference Frames | 30 pages including title page and 12 figures, plus references and
notes | Found.Phys.Lett. 11 (1998) 405-443 | null | null | gr-qc | null | The rotating disk problem is analyzed on the premise that proper
interpretation of experimental evidence leads to the conclusion that the
postulates upon which relativity theory is based, particularly the invariance
of the speed of light, are not applicable to rotating frames. Different
postulates based on the Sagnac... | [
{
"created": "Thu, 22 Mar 2001 03:47:14 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Klauber",
"Robert D.",
""
]
] | The rotating disk problem is analyzed on the premise that proper interpretation of experimental evidence leads to the conclusion that the postulates upon which relativity theory is based, particularly the invariance of the speed of light, are not applicable to rotating frames. Different postulates based on the Sagnac e... |
2107.10237 | Dennis Obster | Dennis Obster, Naoki Sasakura | Counting tensor rank decompositions | 29 pages, 7 figures, 1 table | null | null | YITP-21-77 | gr-qc cs.NA hep-th math-ph math.MP math.NA | http://creativecommons.org/licenses/by/4.0/ | The tensor rank decomposition is a useful tool for the geometric
interpretation of the tensors in the canonical tensor model (CTM) of quantum
gravity. In order to understand the stability of this interpretation, it is
important to be able to estimate how many tensor rank decompositions can
approximate a given tensor.... | [
{
"created": "Tue, 20 Jul 2021 06:30:36 GMT",
"version": "v1"
}
] | 2021-07-22 | [
[
"Obster",
"Dennis",
""
],
[
"Sasakura",
"Naoki",
""
]
] | The tensor rank decomposition is a useful tool for the geometric interpretation of the tensors in the canonical tensor model (CTM) of quantum gravity. In order to understand the stability of this interpretation, it is important to be able to estimate how many tensor rank decompositions can approximate a given tensor. M... |
1912.09514 | Wolfgang Wieland | Jeevan Chandra Namburi and Wolfgang Wieland | Deformed Heisenberg charges in three-dimensional gravity | null | null | 10.1007/JHEP03(2020)175 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper, we consider the bulk plus boundary phase space for
three-dimensional gravity with negative cosmological constant for a particular
choice of conformal boundary conditions: the conformal class of the induced
metric at the boundary is kept fixed and the mean extrinsic curvature is
constrained to be one. S... | [
{
"created": "Thu, 19 Dec 2019 19:33:15 GMT",
"version": "v1"
}
] | 2020-04-22 | [
[
"Namburi",
"Jeevan Chandra",
""
],
[
"Wieland",
"Wolfgang",
""
]
] | In this paper, we consider the bulk plus boundary phase space for three-dimensional gravity with negative cosmological constant for a particular choice of conformal boundary conditions: the conformal class of the induced metric at the boundary is kept fixed and the mean extrinsic curvature is constrained to be one. Suc... |
0910.3200 | Martin Bojowald | Martin Bojowald | A Momentous Arrow of Time | 23 pages, 3 figures, Chapter contributed to "The Arrow of Time" Ed.
L. Mersini-Houghton and R. Vaas (Springer-Verlag) | The Arrows of Time (Springer, Heidelberg 2012), pp.169-189 | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Quantum cosmology offers a unique stage to address questions of time related
to its underlying (and perhaps truly quantum dynamical) meaning as well as its
origin. Some of these issues can be analyzed with a general scheme of quantum
cosmology, others are best seen in loop quantum cosmology. The latter's status
is st... | [
{
"created": "Fri, 16 Oct 2009 19:46:57 GMT",
"version": "v1"
}
] | 2012-07-25 | [
[
"Bojowald",
"Martin",
""
]
] | Quantum cosmology offers a unique stage to address questions of time related to its underlying (and perhaps truly quantum dynamical) meaning as well as its origin. Some of these issues can be analyzed with a general scheme of quantum cosmology, others are best seen in loop quantum cosmology. The latter's status is stil... |
1608.06187 | Kent Yagi | Kent Yagi and Nicolas Yunes | Approximate Universal Relations among Tidal Parameters for Neutron Star
Binaries | 42 pages, 18 figures; matches the published version, a few typos
corrected | null | 10.1088/1361-6382/34/1/015006 | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | One of largest uncertainties in nuclear physics is the relation between the
pressure and density of supranuclear matter: the equation of state. Some of
this uncertainty may be removed through future gravitational wave observations
of neutron star binaries by extracting the tidal deformabilities (or Love
numbers) of n... | [
{
"created": "Mon, 22 Aug 2016 14:53:38 GMT",
"version": "v1"
},
{
"created": "Sun, 14 Oct 2018 02:15:03 GMT",
"version": "v2"
}
] | 2018-10-16 | [
[
"Yagi",
"Kent",
""
],
[
"Yunes",
"Nicolas",
""
]
] | One of largest uncertainties in nuclear physics is the relation between the pressure and density of supranuclear matter: the equation of state. Some of this uncertainty may be removed through future gravitational wave observations of neutron star binaries by extracting the tidal deformabilities (or Love numbers) of neu... |
1304.6191 | Kazuharu Bamba | Kazuharu Bamba, Shin'ichi Nojiri and Sergei D. Odintsov | Effective $F(T)$ gravity from the higher-dimensional Kaluza-Klein and
Randall-Sundrum theories | 5 pages, no figure, version accepted for publication in Physics
Letters B | Physics Letters B 725 (2013) 368-371 | 10.1016/j.physletb.2013.07.052 | null | gr-qc astro-ph.CO hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We explore the four-dimensional effective $F(T)$ gravity with $T$ the torsion
scalar in teleparallelism originating from higher-dimensional space-time
theories, in particular the Kaluza-Klein (KK) and Randall-Sundrum (RS)
theories. First, through the KK dimensional reduction from the five-dimensional
space-time, we o... | [
{
"created": "Tue, 23 Apr 2013 07:44:36 GMT",
"version": "v1"
},
{
"created": "Mon, 29 Apr 2013 10:24:33 GMT",
"version": "v2"
},
{
"created": "Wed, 24 Jul 2013 07:41:50 GMT",
"version": "v3"
}
] | 2013-09-03 | [
[
"Bamba",
"Kazuharu",
""
],
[
"Nojiri",
"Shin'ichi",
""
],
[
"Odintsov",
"Sergei D.",
""
]
] | We explore the four-dimensional effective $F(T)$ gravity with $T$ the torsion scalar in teleparallelism originating from higher-dimensional space-time theories, in particular the Kaluza-Klein (KK) and Randall-Sundrum (RS) theories. First, through the KK dimensional reduction from the five-dimensional space-time, we obt... |
1512.07473 | Parampreet Singh | Parampreet Singh, S. K. Soni | On the relationship between the modifications to the Raychaudhuri
equation and the canonical Hamiltonian structures | 22 pages with two new plots. Discussion on uniqueness added, and
possible links with existing models expanded. Periodicity for 'generalized
polymerized' theory and its comparison with standard polymerization
discussed. References added. To appear in CQG | Class. Quant. Grav 33 (2016) 125001 | 10.1088/0264-9381/33/12/125001 | null | gr-qc astro-ph.CO hep-th physics.class-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The problem of obtaining canonical Hamiltonian structures from the equations
of motion, without any knowledge of the action, is studied in the context of
the spatially flat Friedmann-Robertson-Walker models. Modifications to
Raychaudhuri equation are implemented independently as quadratic and cubic
terms of energy de... | [
{
"created": "Wed, 23 Dec 2015 14:01:46 GMT",
"version": "v1"
},
{
"created": "Thu, 7 Apr 2016 15:04:59 GMT",
"version": "v2"
}
] | 2016-05-18 | [
[
"Singh",
"Parampreet",
""
],
[
"Soni",
"S. K.",
""
]
] | The problem of obtaining canonical Hamiltonian structures from the equations of motion, without any knowledge of the action, is studied in the context of the spatially flat Friedmann-Robertson-Walker models. Modifications to Raychaudhuri equation are implemented independently as quadratic and cubic terms of energy dens... |
0810.4376 | Matt Visser | Jozef Skakala (Victoria University of Wellington) and Matt Visser
(Victoria University of Wellington) | Birefringence in pseudo-Finsler spacetimes | 8 pages; uses jpconf.cls Talk delivered by Jozef Skakala at the NEB
XIII conference, (Recent Developments in Gravity), Thessalonika, Greece, June
2008 | J.Phys.Conf.Ser.189:012037,2009 | 10.1088/1742-6596/189/1/012037 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Based on the analogue spacetime programme, and many other ideas currently
mooted in "quantum gravity", there is considerable ongoing speculation that the
usual pseudo-Riemannian (Lorentzian) manifolds of general relativity might
eventually be modified at short distances. Two specific modifications that are
often advo... | [
{
"created": "Fri, 24 Oct 2008 04:12:40 GMT",
"version": "v1"
}
] | 2009-11-05 | [
[
"Skakala",
"Jozef",
"",
"Victoria University of Wellington"
],
[
"Visser",
"Matt",
"",
"Victoria University of Wellington"
]
] | Based on the analogue spacetime programme, and many other ideas currently mooted in "quantum gravity", there is considerable ongoing speculation that the usual pseudo-Riemannian (Lorentzian) manifolds of general relativity might eventually be modified at short distances. Two specific modifications that are often advoca... |
2308.03068 | Yan-Gang Miao | Hao Yang, Chang-Jiang Yu, Yan-Gang Miao | Preliminary analyses on dynamics and thermodynamics of rotating regular
black holes | v1: 33 pages, 2 figures; v2: 37 pages, modifications and one
reference added, final version to appear in Chinese Physics C | Chinese Physics C 48 (2024) 075101 | 10.1088/1674-1137/ad34c1 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate the dynamic and thermodynamic laws governing rotating regular
black holes. By analyzing dynamic properties, i.e., the interaction between
scalar particles and rotating regular black holes, we establish the criteria
that determine whether such black holes satisfy the laws of thermodynamics or
not. In ad... | [
{
"created": "Sun, 6 Aug 2023 09:39:56 GMT",
"version": "v1"
},
{
"created": "Sat, 18 May 2024 01:40:28 GMT",
"version": "v2"
}
] | 2024-05-21 | [
[
"Yang",
"Hao",
""
],
[
"Yu",
"Chang-Jiang",
""
],
[
"Miao",
"Yan-Gang",
""
]
] | We investigate the dynamic and thermodynamic laws governing rotating regular black holes. By analyzing dynamic properties, i.e., the interaction between scalar particles and rotating regular black holes, we establish the criteria that determine whether such black holes satisfy the laws of thermodynamics or not. In addi... |
2404.19056 | Tayyaba Naz | Tayyaba Naz, Adnan Malik, Zenab Ramay | Anisotropic Quark Stars in Modified $f(R,T)$ Gravity utilizing Tolman V
potential | 16 pages, 17 figures, submitted for publication | null | null | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | Alternative gravity theory is currently an incredibly significant technique
for addressing some enduring experimental difficulties, such as the universe's
dark region. They may also be employed in celestial cosmology, producing
results that are a stage beyond those found using Einstein's General
Relativity. In this s... | [
{
"created": "Mon, 29 Apr 2024 18:51:56 GMT",
"version": "v1"
}
] | 2024-05-01 | [
[
"Naz",
"Tayyaba",
""
],
[
"Malik",
"Adnan",
""
],
[
"Ramay",
"Zenab",
""
]
] | Alternative gravity theory is currently an incredibly significant technique for addressing some enduring experimental difficulties, such as the universe's dark region. They may also be employed in celestial cosmology, producing results that are a stage beyond those found using Einstein's General Relativity. In this stu... |
2007.01145 | Kirill Bronnikov | K.A. Bronnikov, V.G. Krechet, V.B. Oshurko | Rotating Melvin-like universes and wormholes in general relativity | 11 pages, no figures | Symmetry 2020, 12 1306 (2020) | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We find a family of exact solutions to the Einstein-Maxwell equations for
rotating cylindrically symmetric distributions of a perfect fluid with the
equation of state $p = w\rho$ ($|w| < 1$), carrying a circular electric current
in the angular direction. This current creates a magnetic field along the $z$
axis. Some ... | [
{
"created": "Thu, 2 Jul 2020 14:30:17 GMT",
"version": "v1"
}
] | 2020-10-20 | [
[
"Bronnikov",
"K. A.",
""
],
[
"Krechet",
"V. G.",
""
],
[
"Oshurko",
"V. B.",
""
]
] | We find a family of exact solutions to the Einstein-Maxwell equations for rotating cylindrically symmetric distributions of a perfect fluid with the equation of state $p = w\rho$ ($|w| < 1$), carrying a circular electric current in the angular direction. This current creates a magnetic field along the $z$ axis. Some of... |
gr-qc/0110110 | Gaetano Lambiase | G. Lambiase | Probing the Brans-Dicke Gravitational Field by Cerenkov Radiation | 8 pages, no figures | Europhys.Lett. 56 (2001) 778-783 | 10.1209/epl/i2001-00366-3 | null | gr-qc | null | The possibility that a charged particle propagating in a gravitational field
described by Brans-Dicke theory of gravity could emit Cerenkov radiation is
explored. This process is kinematically allowed depending on parameters
occurring in the theory. The Cerenkov effect disappears as the BD parameter
omega tends to in... | [
{
"created": "Thu, 25 Oct 2001 17:55:51 GMT",
"version": "v1"
}
] | 2016-08-31 | [
[
"Lambiase",
"G.",
""
]
] | The possibility that a charged particle propagating in a gravitational field described by Brans-Dicke theory of gravity could emit Cerenkov radiation is explored. This process is kinematically allowed depending on parameters occurring in the theory. The Cerenkov effect disappears as the BD parameter omega tends to inft... |
gr-qc/0602063 | Samad Khakshournia | Shahram Khosravi, Samad Khakshournia, Reza Mansouri | Evolution of Thick Walls in Curved Spacetimes | 8 pages, 1 figure | Class.Quant.Grav. 23 (2006) 5927-5940 | 10.1088/0264-9381/23/20/014 | null | gr-qc | null | We generalize our previous thick shell formalism to incorporate any
codimension-1 thick wall with a peculiar velocity and proper thickness bounded
by arbitrary spacetimes. Within this new formulation we obtain the equation of
motion of a spherically symmetric dust thick shell immersed in vacuum as well
as in Friedman... | [
{
"created": "Thu, 16 Feb 2006 11:47:40 GMT",
"version": "v1"
},
{
"created": "Sat, 30 Sep 2006 12:50:23 GMT",
"version": "v2"
}
] | 2009-11-11 | [
[
"Khosravi",
"Shahram",
""
],
[
"Khakshournia",
"Samad",
""
],
[
"Mansouri",
"Reza",
""
]
] | We generalize our previous thick shell formalism to incorporate any codimension-1 thick wall with a peculiar velocity and proper thickness bounded by arbitrary spacetimes. Within this new formulation we obtain the equation of motion of a spherically symmetric dust thick shell immersed in vacuum as well as in Friedmann-... |
0709.3703 | Johann Kronthaler | Johann Kronthaler | Decay Rates for Spherical Scalar Waves in the Schwarzschild Geometry | 34 pages | null | null | null | gr-qc | null | The Cauchy problem is considered for the scalar wave equation in the
Schwarzschild geometry. Using an integral spectral representation we derive the
exact decay rate for solutions of the Cauchy problem with spherical symmetric
initial data, which is smooth and compactly supported outside the event
horizon.
| [
{
"created": "Mon, 24 Sep 2007 08:07:17 GMT",
"version": "v1"
}
] | 2007-09-25 | [
[
"Kronthaler",
"Johann",
""
]
] | The Cauchy problem is considered for the scalar wave equation in the Schwarzschild geometry. Using an integral spectral representation we derive the exact decay rate for solutions of the Cauchy problem with spherical symmetric initial data, which is smooth and compactly supported outside the event horizon. |
2106.00674 | Jorge Pullin | Florencia Ben\'itez, Rodolfo Gambini, Steven L. Liebling, Jorge Pullin | Criticality in the collapse of spherically symmetric massless scalar
fields in semi-classical loop quantum gravity | 7 pages, RevTex | Phys. Rev. D 104, 024008 (2021) | 10.1103/PhysRevD.104.024008 | LSU-REL-060121 | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In a recent paper we showed that the collapse to a black hole in
one-parameter families of initial data for massless, minimally coupled scalar
fields in spherically symmetric semi-classical loop quantum gravity exhibited a
universal mass scaling similar to the one in classical general relativity. In
particular, no ev... | [
{
"created": "Tue, 1 Jun 2021 17:58:41 GMT",
"version": "v1"
}
] | 2021-07-07 | [
[
"Benítez",
"Florencia",
""
],
[
"Gambini",
"Rodolfo",
""
],
[
"Liebling",
"Steven L.",
""
],
[
"Pullin",
"Jorge",
""
]
] | In a recent paper we showed that the collapse to a black hole in one-parameter families of initial data for massless, minimally coupled scalar fields in spherically symmetric semi-classical loop quantum gravity exhibited a universal mass scaling similar to the one in classical general relativity. In particular, no evid... |
2010.15628 | Alessandro Tronconi | A. Y. Kamenshchik, A. Tronconi, G. Venturi | The Born-Oppenheimer approach to Quantum Cosmology | 21 pages, no figures | null | 10.1088/1361-6382/ac0a88 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The scope of this paper is to compare two different approaches for solving
the Wheeler-DeWitt (WDW) equation in the presence of homogeneous matter
(inflaton) and perturbations around it. The standard Born-Oppenheimer (BO)
decomposition, which consists of factorizing out the gravitational wave
function and then defini... | [
{
"created": "Thu, 29 Oct 2020 14:24:01 GMT",
"version": "v1"
}
] | 2021-08-11 | [
[
"Kamenshchik",
"A. Y.",
""
],
[
"Tronconi",
"A.",
""
],
[
"Venturi",
"G.",
""
]
] | The scope of this paper is to compare two different approaches for solving the Wheeler-DeWitt (WDW) equation in the presence of homogeneous matter (inflaton) and perturbations around it. The standard Born-Oppenheimer (BO) decomposition, which consists of factorizing out the gravitational wave function and then defining... |
0904.4318 | Leonardo Balart | Leonardo Balart | Energy distribution of 2+1 dimensional black holes with nonlinear
electrodynamics | 10 pages, no figures, references added | Mod.Phys.Lett.A24:2777-2785,2009 | 10.1142/S021773230903117X | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The energy distributions for a black hole solution resulting from coupling
electrodynamics and gravity in 2+1 dimensions are obtained. This solution
considers the correction for a 2+1 static charged black hole from the first
contribution of the weak field limit of one loop QED in 2+1 dimensions. The
Einstein and Moll... | [
{
"created": "Tue, 28 Apr 2009 06:48:58 GMT",
"version": "v1"
},
{
"created": "Fri, 27 Nov 2009 03:55:17 GMT",
"version": "v2"
}
] | 2009-12-02 | [
[
"Balart",
"Leonardo",
""
]
] | The energy distributions for a black hole solution resulting from coupling electrodynamics and gravity in 2+1 dimensions are obtained. This solution considers the correction for a 2+1 static charged black hole from the first contribution of the weak field limit of one loop QED in 2+1 dimensions. The Einstein and Moller... |
1807.07672 | Yasusada Nambu | Tomoro Tokusumi, Akira Matsumura and Yasusada Nambu | Quantum Circuit Model of Black Hole Evaporation | 26 pages, accepted version in CQG | Class. Quantum Grav. 35 (2018) 235013 | 10.1088/1361-6382/aaeb5a | null | gr-qc quant-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider a quantum circuit model describing the evaporation process of
black holes. We specifically examine the behavior of the multipartite
entanglement represented by this model, and find that the entanglement
structure depends on the black hole mass $M$ and the frequency of the Hawking
radiation $\omega$. For s... | [
{
"created": "Fri, 20 Jul 2018 00:20:22 GMT",
"version": "v1"
},
{
"created": "Tue, 13 Nov 2018 03:19:42 GMT",
"version": "v2"
}
] | 2018-11-14 | [
[
"Tokusumi",
"Tomoro",
""
],
[
"Matsumura",
"Akira",
""
],
[
"Nambu",
"Yasusada",
""
]
] | We consider a quantum circuit model describing the evaporation process of black holes. We specifically examine the behavior of the multipartite entanglement represented by this model, and find that the entanglement structure depends on the black hole mass $M$ and the frequency of the Hawking radiation $\omega$. For suf... |
1404.2249 | Emmanuil Saridakis | Georgios Kofinas (Aegean U.), Emmanuel N. Saridakis (Natl. Tech. U.,
Athens and Valparaiso U., Catolica) | Teleparallel equivalent of Gauss-Bonnet gravity and its modifications | 10 pages, version to appear in Phys.Rev.D. The general equations of
motion have been derived, the cosmological applications are moved to a
separate publication | Phys. Rev. D 90, 084044 (2014) | 10.1103/PhysRevD.90.084044 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Inspired by the teleparallel formulation of General Relativity, whose
Lagrangian is the torsion invariant T, we have constructed the teleparallel
equivalent of Gauss-Bonnet gravity in arbitrary dimensions. Without imposing
the Weitzenbock connection, we have extracted the torsion invariant T_G,
equivalent (up to boun... | [
{
"created": "Tue, 8 Apr 2014 18:52:21 GMT",
"version": "v1"
},
{
"created": "Thu, 31 Jul 2014 07:12:18 GMT",
"version": "v2"
},
{
"created": "Tue, 23 Sep 2014 13:53:36 GMT",
"version": "v3"
}
] | 2014-10-29 | [
[
"Kofinas",
"Georgios",
"",
"Aegean U."
],
[
"Saridakis",
"Emmanuel N.",
"",
"Natl. Tech. U.,\n Athens and Valparaiso U., Catolica"
]
] | Inspired by the teleparallel formulation of General Relativity, whose Lagrangian is the torsion invariant T, we have constructed the teleparallel equivalent of Gauss-Bonnet gravity in arbitrary dimensions. Without imposing the Weitzenbock connection, we have extracted the torsion invariant T_G, equivalent (up to bounda... |
gr-qc/0105011 | Mauricio Bellini | Mauricio Bellini (IFM, Universidad Michoacana) | Decoherence of gauge-invariant metric fluctuations during inflation | version accepted in Phys. Rev. D | Phys.Rev. D64 (2001) 043507 | 10.1103/PhysRevD.64.043507 | null | gr-qc hep-ph | null | I study the gauge-invariant fluctuations of the metric during inflation. In
the infrared sector the metric fluctuations can be represented by a
coarse-grained field. We can write a Schroedinger equation for the
coarse-grained metric fluctuations which is related to an effective Hamiltonian
for a time dependent parame... | [
{
"created": "Wed, 2 May 2001 23:38:22 GMT",
"version": "v1"
},
{
"created": "Wed, 23 May 2001 22:51:25 GMT",
"version": "v2"
}
] | 2009-11-07 | [
[
"Bellini",
"Mauricio",
"",
"IFM, Universidad Michoacana"
]
] | I study the gauge-invariant fluctuations of the metric during inflation. In the infrared sector the metric fluctuations can be represented by a coarse-grained field. We can write a Schroedinger equation for the coarse-grained metric fluctuations which is related to an effective Hamiltonian for a time dependent paramete... |
2404.02972 | Konstantinos Dialektopoulos F. | Sebastian Bahamonde, Daniel Blixt, Konstantinos F. Dialektopoulos,
Anamaria Hell | Revisiting Stability in New General Relativity | 14 pages | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the degrees of freedom in New General Relativity -- flat and metric
compatible family of theories -- around the Minkowski background in a gauge
invariant manner. First, we confirm the decoupling case, in which the theory
reduces to linearized gravity plus a massless KR field. We then show that,
unless they v... | [
{
"created": "Wed, 3 Apr 2024 18:00:17 GMT",
"version": "v1"
}
] | 2024-04-05 | [
[
"Bahamonde",
"Sebastian",
""
],
[
"Blixt",
"Daniel",
""
],
[
"Dialektopoulos",
"Konstantinos F.",
""
],
[
"Hell",
"Anamaria",
""
]
] | We study the degrees of freedom in New General Relativity -- flat and metric compatible family of theories -- around the Minkowski background in a gauge invariant manner. First, we confirm the decoupling case, in which the theory reduces to linearized gravity plus a massless KR field. We then show that, unless they van... |
gr-qc/0102101 | Bahram Mashhoon | Lewis H. Ryder (University of Kent at Canterbury, UK), and Bahram
Mashhoon (University of Missouri-Columbia, USA) | Spin and Rotation in General Relativity | LaTeX file, no figures, 15 pages | null | 10.1007/3-540-40988-2_23 | null | gr-qc | null | Rapporteur's Introduction to the GT8 session of the Ninth Marcel Grossmann
Meeting (Rome, 2000); to appear in the Proceedings.
| [
{
"created": "Thu, 22 Feb 2001 22:00:06 GMT",
"version": "v1"
}
] | 2016-12-07 | [
[
"Ryder",
"Lewis H.",
"",
"University of Kent at Canterbury, UK"
],
[
"Mashhoon",
"Bahram",
"",
"University of Missouri-Columbia, USA"
]
] | Rapporteur's Introduction to the GT8 session of the Ninth Marcel Grossmann Meeting (Rome, 2000); to appear in the Proceedings. |
1712.07132 | Neil J. Cornish | Neil J. Cornish, Logan O'Beirne, Stephen R. Taylor and Nicolas Yunes | Constraining alternative theories of gravity using pulsar timing arrays | 5 pages, 4 figures | Phys. Rev. Lett. 120, 181101 (2018) | 10.1103/PhysRevLett.120.181101 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The opening of the gravitational wave window by ground-based laser
interferometers has made possible many new tests of gravity, including the
first constraints on polarization. It is hoped that within the next decade
pulsar timing will extend the window by making the first detections in the
nano-Hertz frequency regim... | [
{
"created": "Tue, 19 Dec 2017 19:00:06 GMT",
"version": "v1"
}
] | 2018-05-09 | [
[
"Cornish",
"Neil J.",
""
],
[
"O'Beirne",
"Logan",
""
],
[
"Taylor",
"Stephen R.",
""
],
[
"Yunes",
"Nicolas",
""
]
] | The opening of the gravitational wave window by ground-based laser interferometers has made possible many new tests of gravity, including the first constraints on polarization. It is hoped that within the next decade pulsar timing will extend the window by making the first detections in the nano-Hertz frequency regime.... |
1907.04019 | Michael H\"orzinger | Hamed Barzegar, Piotr T. Chru\'sciel, Michael H\"orzinger, Maciej
Maliborski, Luc Nguyen | On the energy of the Horowitz-Myers metrics | null | Phys. Rev. D 101, 024007 (2020) | 10.1103/PhysRevD.101.024007 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present results supporting the Horowitz-Myers conjecture, that the
Horowitz-Myers metrics minimise energy in the relevant classes of metrics.
| [
{
"created": "Tue, 9 Jul 2019 07:19:22 GMT",
"version": "v1"
},
{
"created": "Tue, 28 Jan 2020 11:29:55 GMT",
"version": "v2"
}
] | 2020-01-29 | [
[
"Barzegar",
"Hamed",
""
],
[
"Chruściel",
"Piotr T.",
""
],
[
"Hörzinger",
"Michael",
""
],
[
"Maliborski",
"Maciej",
""
],
[
"Nguyen",
"Luc",
""
]
] | We present results supporting the Horowitz-Myers conjecture, that the Horowitz-Myers metrics minimise energy in the relevant classes of metrics. |
gr-qc/9808017 | Frank Gronwald | H.I.M. Lichtenegger, F. Gronwald, and B. Mashhoon | On detecting the gravitomagnetic field of the earth by means of orbiting
clocks | Talk given at the 32nd COSPAR Scientific Assembly, held at Nagoya,
Japan, 12-19 July 1998, 4 pages LATEX | null | null | null | gr-qc | null | Based on the recent finding that the difference in proper time of two clocks
in prograde and retrograde equatorial orbits about the Earth is of the order
10^{-7}s per revolution, the possibility of detecting the terrestrial
gravitomagnetic field by means of clocks carried by satellites is discussed. A
mission taking ... | [
{
"created": "Wed, 5 Aug 1998 15:06:17 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Lichtenegger",
"H. I. M.",
""
],
[
"Gronwald",
"F.",
""
],
[
"Mashhoon",
"B.",
""
]
] | Based on the recent finding that the difference in proper time of two clocks in prograde and retrograde equatorial orbits about the Earth is of the order 10^{-7}s per revolution, the possibility of detecting the terrestrial gravitomagnetic field by means of clocks carried by satellites is discussed. A mission taking ad... |
gr-qc/9606034 | Takashi Torii | Takashi Torii, Hiroki Yajima and Kei-ichi Maeda | Dilatonic Black Holes with Gauss-Bonnet Term | 31pages, 11figures, LaTex style | Phys.Rev.D55:739-753,1997 | 10.1103/PhysRevD.55.739 | WU-AP/55/96 | gr-qc hep-th | null | We discuss black holes in an effective theory derived from a superstring
model, which includes a dilaton field, a gauge field and the Gauss-Bonnet term.
Assuming U(1) or SU(2) symmetry for the gauge field, we find four types of
spherically symmetric solutions, i.e., a neutral, an electrically charged, a
magnetically ... | [
{
"created": "Mon, 17 Jun 1996 04:12:46 GMT",
"version": "v1"
},
{
"created": "Wed, 19 Jun 1996 04:18:00 GMT",
"version": "v2"
}
] | 2010-11-19 | [
[
"Torii",
"Takashi",
""
],
[
"Yajima",
"Hiroki",
""
],
[
"Maeda",
"Kei-ichi",
""
]
] | We discuss black holes in an effective theory derived from a superstring model, which includes a dilaton field, a gauge field and the Gauss-Bonnet term. Assuming U(1) or SU(2) symmetry for the gauge field, we find four types of spherically symmetric solutions, i.e., a neutral, an electrically charged, a magnetically ch... |
gr-qc/0201095 | Christoph Schmid | Christoph Schmid (ETH Zurich) | Cosmological Vorticity Perturbations, Gravitomagnetism, and Mach's
Principle | 10 pages, to appear in Proc. COSMO-01, Rovaniemi, Finland, Aug 29 -
Sep 4, 2001 | null | null | null | gr-qc astro-ph | null | The axes of gyroscopes experimentally define non-rotating frames.
But what physical cause governs the time-evolution of gyroscope axes?
Starting from an unperturbed, spatially flat FRW cosmology, we consider
cosmological vorticity perturbations (i.e. vector perturbations, rotational
perturbations) at the linear l... | [
{
"created": "Wed, 30 Jan 2002 13:52:42 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Schmid",
"Christoph",
"",
"ETH Zurich"
]
] | The axes of gyroscopes experimentally define non-rotating frames. But what physical cause governs the time-evolution of gyroscope axes? Starting from an unperturbed, spatially flat FRW cosmology, we consider cosmological vorticity perturbations (i.e. vector perturbations, rotational perturbations) at the linear level. ... |
1208.1913 | Mohammad Nouri-Zonoz | M. Nouri-Zonoz, H. Ramezani-Aval and R. Gharechahi | On Franklin's relativistic rotational transformation and its
modification | 30 pages, 2 figures, replaced with the published version | Eur. Phys. J. C (2014) 74:3098 | 10.1140/epjc/s10052-014-3098-6 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Unlike the Lorentz transformation which replaces the Galilean transformation
among inertial frames at high relative velocities, there seems to be no such a
consensus in the case of coordinate transformation between inertial frames and
uniformly rotating ones. There have been some attempts to generalize the
Galilean r... | [
{
"created": "Thu, 9 Aug 2012 13:53:13 GMT",
"version": "v1"
},
{
"created": "Thu, 25 Jul 2013 11:38:56 GMT",
"version": "v2"
},
{
"created": "Sat, 5 Apr 2014 07:27:56 GMT",
"version": "v3"
},
{
"created": "Thu, 18 Dec 2014 13:46:31 GMT",
"version": "v4"
}
] | 2014-12-23 | [
[
"Nouri-Zonoz",
"M.",
""
],
[
"Ramezani-Aval",
"H.",
""
],
[
"Gharechahi",
"R.",
""
]
] | Unlike the Lorentz transformation which replaces the Galilean transformation among inertial frames at high relative velocities, there seems to be no such a consensus in the case of coordinate transformation between inertial frames and uniformly rotating ones. There have been some attempts to generalize the Galilean rot... |
gr-qc/0303069 | Jose A. Gonzalez | Miguel Alcubierre, Alejandro Corichi, Jose A. Gonzalez, Dario Nunez
and Marcelo Salgado | A hyperbolic slicing condition adapted to Killing fields and densitized
lapses | 11 pages | Class.Quant.Grav. 20 (2003) 3951-3968 | 10.1088/0264-9381/20/18/308 | null | gr-qc | null | We study the properties of a modified version of the Bona-Masso family of
hyperbolic slicing conditions. This modified slicing condition has two very
important features: In the first place, it guarantees that if a spacetime is
static or stationary, and one starts the evolution in a coordinate system in
which the metr... | [
{
"created": "Tue, 18 Mar 2003 20:00:06 GMT",
"version": "v1"
},
{
"created": "Tue, 26 Aug 2003 13:58:58 GMT",
"version": "v2"
}
] | 2009-11-10 | [
[
"Alcubierre",
"Miguel",
""
],
[
"Corichi",
"Alejandro",
""
],
[
"Gonzalez",
"Jose A.",
""
],
[
"Nunez",
"Dario",
""
],
[
"Salgado",
"Marcelo",
""
]
] | We study the properties of a modified version of the Bona-Masso family of hyperbolic slicing conditions. This modified slicing condition has two very important features: In the first place, it guarantees that if a spacetime is static or stationary, and one starts the evolution in a coordinate system in which the metric... |
1804.11219 | Dag {\O}stvang | Dag {\O}stvang | Fully Extended Quasi-Metric Gravity | 20 pages; v2: somewhat extended; v3: major revision (title changed);
v4: somewhat revised and extended; v5: further revised; v6: inconsistent
equation replaced arXiv admin note: text overlap with arXiv:gr-qc/0112025 | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The original theory of quasi-metric gravity, admitting only a partial
coupling between space-time geometry and the active stress-energy tensor, is
too restricted to allow the existence of gravitational waves in vacuum.
Therefore, said theory can at best be regarded as a wave-less approximation
theory. However, the re... | [
{
"created": "Mon, 30 Apr 2018 14:12:52 GMT",
"version": "v1"
},
{
"created": "Thu, 22 Nov 2018 21:58:52 GMT",
"version": "v2"
},
{
"created": "Tue, 31 Dec 2019 13:45:52 GMT",
"version": "v3"
},
{
"created": "Wed, 30 Dec 2020 23:20:32 GMT",
"version": "v4"
},
{
"c... | 2024-03-19 | [
[
"Østvang",
"Dag",
""
]
] | The original theory of quasi-metric gravity, admitting only a partial coupling between space-time geometry and the active stress-energy tensor, is too restricted to allow the existence of gravitational waves in vacuum. Therefore, said theory can at best be regarded as a wave-less approximation theory. However, the requ... |
2306.14439 | Kun Zhou | Kun Zhou, Jun Cheng, and Liangliang Ren | Detecting anisotropies of the stochastic gravitational wave background
with TianQin | 27 pages, 9 figures | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The investigation of the anisotropy of the stochastic gravitational wave
background (SGWB) using the TianQin detector plays a crucial role in studying
the early universe and astrophysics. In this work, we examine the response of
the $AET$ channel of the TianQin Time Delay Interferometry (TDI) to the
anisotropy of the... | [
{
"created": "Mon, 26 Jun 2023 06:09:50 GMT",
"version": "v1"
},
{
"created": "Tue, 27 Jun 2023 05:03:58 GMT",
"version": "v2"
},
{
"created": "Tue, 4 Jul 2023 15:28:58 GMT",
"version": "v3"
}
] | 2023-07-06 | [
[
"Zhou",
"Kun",
""
],
[
"Cheng",
"Jun",
""
],
[
"Ren",
"Liangliang",
""
]
] | The investigation of the anisotropy of the stochastic gravitational wave background (SGWB) using the TianQin detector plays a crucial role in studying the early universe and astrophysics. In this work, we examine the response of the $AET$ channel of the TianQin Time Delay Interferometry (TDI) to the anisotropy of the S... |
1012.0458 | Jose M. Martin-Garcia | Yvonne Choquet-Bruhat, Jos\'e M. Mart\'in-Garc\'ia | Energy estimate for initial data on a characteristic cone | 11 pages. Contribution to the proceedings of the conference "New
Developments in Lorentzian Geometry", held in Berlin, Nov 2009 | null | null | null | gr-qc math.DG | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The Einstein equations in wave map gauge are a geometric second order system
for a Lorentzian metric. To study existence of solutions of this hyperbolic
quasi diagonal system with initial data on a characteristic cone which are not
zero in a neighbourhood of the vertex one can appeal to theorems due to Cagnac
and Dos... | [
{
"created": "Thu, 2 Dec 2010 15:45:48 GMT",
"version": "v1"
}
] | 2016-08-14 | [
[
"Choquet-Bruhat",
"Yvonne",
""
],
[
"Martín-García",
"José M.",
""
]
] | The Einstein equations in wave map gauge are a geometric second order system for a Lorentzian metric. To study existence of solutions of this hyperbolic quasi diagonal system with initial data on a characteristic cone which are not zero in a neighbourhood of the vertex one can appeal to theorems due to Cagnac and Dossa... |
gr-qc/0503106 | Ian H. Redmount | Ian H. Redmount (Parks College of Engineering, Aviation, and
Technology, Saint Louis University, St. Louis, Missouri USA) | Localized Particle States and Dynamics Gravitational Effects | 12 pages, 5 figures | Phys.Rev. D73 (2006) 044032 | 10.1103/PhysRevD.73.044032 | null | gr-qc | null | Scalar particles--i.e., scalar-field excitations--in de Sitter space exhibit
behavior unlike either classical particles in expanding space or quantum
particles in flat spacetime. Their energies oscillate forever, and their
interactions are spread out in energy. Here it is shown that these features
characterize not on... | [
{
"created": "Fri, 25 Mar 2005 00:30:23 GMT",
"version": "v1"
}
] | 2009-11-11 | [
[
"Redmount",
"Ian H.",
"",
"Parks College of Engineering, Aviation, and\n Technology, Saint Louis University, St. Louis, Missouri USA"
]
] | Scalar particles--i.e., scalar-field excitations--in de Sitter space exhibit behavior unlike either classical particles in expanding space or quantum particles in flat spacetime. Their energies oscillate forever, and their interactions are spread out in energy. Here it is shown that these features characterize not only... |
gr-qc/0106080 | Pisin Chen | Ronald J. Adler, Pisin Chen, David I. Santiago | The Generalized Uncertainty Principle and Black Hole Remnants | 11 pages, 4 figures; Winner of 3rd Place in the 2001 Gravity Research
Foundation Essay Competition | Gen.Rel.Grav. 33 (2001) 2101-2108 | 10.1023/A:1015281430411 | SLAC-PUB-8853 (June, 2001) | gr-qc | null | In the current standard viewpoint small black holes are believed to emit
radiation as black bodies at the Hawking temperature, at least until they reach
Planck size, after which their fate is open to conjecture. A cogent argument
against the existence of remnants is that, since no evident quantum number
prevents it, ... | [
{
"created": "Tue, 26 Jun 2001 00:09:55 GMT",
"version": "v1"
}
] | 2015-06-25 | [
[
"Adler",
"Ronald J.",
""
],
[
"Chen",
"Pisin",
""
],
[
"Santiago",
"David I.",
""
]
] | In the current standard viewpoint small black holes are believed to emit radiation as black bodies at the Hawking temperature, at least until they reach Planck size, after which their fate is open to conjecture. A cogent argument against the existence of remnants is that, since no evident quantum number prevents it, bl... |
2206.12744 | Mikhail Zubkov Dr | S.Bondarenko, M.A.Zubkov | Riemann-Cartan gravity with dynamical signature | Latex, 7 pages | Jetp Lett. (2022) | 10.1134/S0021364022601002 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Model of Riemann-Cartan gravity with varying signature of metric is
considered. The basic dynamical variables of the formalism are vierbein, spin
connection, and an internal metric in the tangent space. The corresponding
action contains new terms, which depend on these fields. In general case the
signature of the met... | [
{
"created": "Sat, 25 Jun 2022 22:28:18 GMT",
"version": "v1"
}
] | 2022-06-28 | [
[
"Bondarenko",
"S.",
""
],
[
"Zubkov",
"M. A.",
""
]
] | Model of Riemann-Cartan gravity with varying signature of metric is considered. The basic dynamical variables of the formalism are vierbein, spin connection, and an internal metric in the tangent space. The corresponding action contains new terms, which depend on these fields. In general case the signature of the metri... |
2407.07688 | Shu-Min Wu | Wen-Mei Li, Shu-Min Wu | Bosonic and fermionic coherence of N-partite states in the background of
a dilaton black hole | 23 pages, 5 figures, | null | null | null | gr-qc quant-ph | http://creativecommons.org/licenses/by/4.0/ | We study the N-partite coherences of GHZ and W states for free bosonic and
fermionic fields when any n observers hover near the event horizon of a
Garfinkle-Horowitz-Strominger (GHS) dilaton black hole. We derive the more
general analytical expressions for N-partite coherence, encompassing both
physically accessible ... | [
{
"created": "Wed, 10 Jul 2024 14:10:30 GMT",
"version": "v1"
}
] | 2024-07-11 | [
[
"Li",
"Wen-Mei",
""
],
[
"Wu",
"Shu-Min",
""
]
] | We study the N-partite coherences of GHZ and W states for free bosonic and fermionic fields when any n observers hover near the event horizon of a Garfinkle-Horowitz-Strominger (GHS) dilaton black hole. We derive the more general analytical expressions for N-partite coherence, encompassing both physically accessible an... |
1705.05740 | Christopher Pope | M. Cvetic, G.W. Gibbons and C.N. Pope | STU Black Holes and SgrA* | 20 pages | null | 10.1088/1475-7516/2017/08/016 | UPR-1284-T, MI-TH-1751 | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The equations of null geodesics in the STU family of rotating black hole
solutions of supergravity theory, which may be considered as deformations of
the vacuum Kerr metric, are completely integrable. We propose that they be used
as a foil to test, for example, with what precision the gravitational field
external to ... | [
{
"created": "Tue, 16 May 2017 14:51:59 GMT",
"version": "v1"
}
] | 2019-04-26 | [
[
"Cvetic",
"M.",
""
],
[
"Gibbons",
"G. W.",
""
],
[
"Pope",
"C. N.",
""
]
] | The equations of null geodesics in the STU family of rotating black hole solutions of supergravity theory, which may be considered as deformations of the vacuum Kerr metric, are completely integrable. We propose that they be used as a foil to test, for example, with what precision the gravitational field external to th... |
1812.01559 | Seema Satin | Seema Satin | Stochastic metric perturbations (radial) in gravitationally collapsing
spherically symmetric relativistic star | null | Gen Relativ Gravit (2019) 51: 52 | 10.1007/s10714-019-2536-z | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Stochastic perturbations (radial) of a spherically symmetric relativistic
star, modeled by a perfect fluid in comoving coordinates for the collapse
scenario are worked out using the classical Einstein- Langevin equation, which
has been proposed recently. The solutions are in terms of perturbed metric
potentials and t... | [
{
"created": "Tue, 4 Dec 2018 17:56:28 GMT",
"version": "v1"
},
{
"created": "Thu, 28 Mar 2019 05:54:40 GMT",
"version": "v2"
}
] | 2019-04-09 | [
[
"Satin",
"Seema",
""
]
] | Stochastic perturbations (radial) of a spherically symmetric relativistic star, modeled by a perfect fluid in comoving coordinates for the collapse scenario are worked out using the classical Einstein- Langevin equation, which has been proposed recently. The solutions are in terms of perturbed metric potentials and the... |
gr-qc/9909087 | Steven Carlip | S. Carlip | Aberration and the Speed of Gravity | 9 pages, LaTeX, one figure using LaTeX picture environment;
references added, abstract shortened, typos corrected, discussion of
aberration and radiation reaction amplified; no change in essential argument | Phys.Lett.A267:81-87,2000 | 10.1016/S0375-9601(00)00101-8 | UCD-99-17 | gr-qc | null | The observed absence of gravitational aberration requires that ``Newtonian''
gravity propagate at a speed $c_g>2\times10^{10}c$. By evaluating the
gravitational effect of an accelerating mass, I show that aberration in general
relativity is almost exactly canceled by velocity-dependent interactions,
permitting $c_g=c... | [
{
"created": "Wed, 29 Sep 1999 19:38:40 GMT",
"version": "v1"
},
{
"created": "Fri, 31 Dec 1999 22:19:19 GMT",
"version": "v2"
}
] | 2010-04-28 | [
[
"Carlip",
"S.",
""
]
] | The observed absence of gravitational aberration requires that ``Newtonian'' gravity propagate at a speed $c_g>2\times10^{10}c$. By evaluating the gravitational effect of an accelerating mass, I show that aberration in general relativity is almost exactly canceled by velocity-dependent interactions, permitting $c_g=c$.... |
2304.05384 | Alex Va\~n\'o-Vi\~nuales | Alex Va\~n\'o-Vi\~nuales | Spherically symmetric black hole spacetimes on hyperboloidal slices | 28 pages, 15 figures, matches published version | Frontiers in Applied Mathematics and Statistics, Sec. Statistical
and Computational Physics, Volume 9 (2023) | 10.3389/fams.2023.1206017 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Gravitational radiation and some global properties of spacetimes can only be
unambiguously measured at future null infinity . This motivates the interest in
reaching it within simulations of coalescing compact objects, whose waveforms
are extracted for gravitational wave modelling purposes. One promising method
to in... | [
{
"created": "Tue, 11 Apr 2023 17:54:34 GMT",
"version": "v1"
},
{
"created": "Tue, 22 Aug 2023 18:07:26 GMT",
"version": "v2"
}
] | 2023-08-24 | [
[
"Vañó-Viñuales",
"Alex",
""
]
] | Gravitational radiation and some global properties of spacetimes can only be unambiguously measured at future null infinity . This motivates the interest in reaching it within simulations of coalescing compact objects, whose waveforms are extracted for gravitational wave modelling purposes. One promising method to incl... |
gr-qc/0312089 | Seth A. Major | Dan Heyman, Franz Hinteleitner, Seth Major | On reaction thresholds in doubly special relativity | 13 pages,v3 added comments regarding the assumption of composite
particles,minor wording changes, version to be published | Phys.Rev. D69 (2004) 105016 | 10.1103/PhysRevD.69.105016 | null | gr-qc | null | Two theories of special relativity with an additional invariant scale,
"doubly special relativity" (DSR), are tested with calculations of particle
process kinematics. Using the Judes-Visser modified conservation laws,
thresholds are studied in both theories. In contrast to some linear
approximations, which allow for ... | [
{
"created": "Fri, 19 Dec 2003 16:44:16 GMT",
"version": "v1"
},
{
"created": "Fri, 16 Jan 2004 15:10:35 GMT",
"version": "v2"
},
{
"created": "Mon, 29 Mar 2004 19:59:00 GMT",
"version": "v3"
}
] | 2009-11-10 | [
[
"Heyman",
"Dan",
""
],
[
"Hinteleitner",
"Franz",
""
],
[
"Major",
"Seth",
""
]
] | Two theories of special relativity with an additional invariant scale, "doubly special relativity" (DSR), are tested with calculations of particle process kinematics. Using the Judes-Visser modified conservation laws, thresholds are studied in both theories. In contrast to some linear approximations, which allow for pa... |
0710.1229 | Stefan Hild | S. Hild, M. Brinkmann, K. Danzmann, H. Grote, M. Hewitson, J. Hough,
H. Lueck, I. Martin, K. Mossavi, N. Rainer, S. Reid, J.R. Smith, K. Strain,
M. Weinert, P. Willems, B. Willke, W. Winkler | Photon pressure induced test mass deformation in gravitational-wave
detectors | null | Class.Quant.Grav.24:5681-5688,2007 | 10.1088/0264-9381/24/22/025 | null | gr-qc | null | A widely used assumption within the gravitational-wave community has so far
been that a test mass acts like a rigid body for frequencies in the detection
band, i.e. for frequencies far below the first internal resonance. In this
article we demonstrate that localized forces, applied for example by a photon
pressure ac... | [
{
"created": "Fri, 5 Oct 2007 13:57:04 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Hild",
"S.",
""
],
[
"Brinkmann",
"M.",
""
],
[
"Danzmann",
"K.",
""
],
[
"Grote",
"H.",
""
],
[
"Hewitson",
"M.",
""
],
[
"Hough",
"J.",
""
],
[
"Lueck",
"H.",
""
],
[
"Martin",
"I.",
""
... | A widely used assumption within the gravitational-wave community has so far been that a test mass acts like a rigid body for frequencies in the detection band, i.e. for frequencies far below the first internal resonance. In this article we demonstrate that localized forces, applied for example by a photon pressure actu... |
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