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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
gr-qc/0403025 | Sawa Manoff | Sawa Manoff | Determination of the velocity of an emitter in spaces with affine
connections and metrics | 16 pages, LaTeX. Invited talk represented at the International
Seminar dedicated to the 75th Anniversary of A.N. Chernikov | null | null | null | gr-qc astro-ph | null | Doppler effect and Hubble effect in different models of space-time related to
the space-time velocity of an observer are considered. The Doppler effect and
Doppler shift frequency parameter are connected with the kinematic
characteristics of the relative velocity and the relative acceleration of the
emitter with resp... | [
{
"created": "Thu, 4 Mar 2004 15:22:21 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Manoff",
"Sawa",
""
]
] | Doppler effect and Hubble effect in different models of space-time related to the space-time velocity of an observer are considered. The Doppler effect and Doppler shift frequency parameter are connected with the kinematic characteristics of the relative velocity and the relative acceleration of the emitter with respec... |
2305.12591 | Valeri Frolov P | Noah P. Baker and Valeri P. Frolov | Charged Particle Motion Near a Magnetized Black Hole: A Near-Horizon
Approximation | 14 pages, 5 figures. New references added. Typos are corrected | null | 10.1103/PhysRevD.108.024045 | null | gr-qc astro-ph.HE hep-th | http://creativecommons.org/licenses/by/4.0/ | In this paper, the orbits of a charged particle near the event horizon of a
magnetized black hole are investigated. For a static black hole of mass $M$
immersed in a homogeneous magnetic field $B$, the dimensionless parameter
$b=eBGM/ (mc^4)$ controls the radius of the circular orbits and determines the
position of t... | [
{
"created": "Sun, 21 May 2023 23:01:19 GMT",
"version": "v1"
},
{
"created": "Fri, 26 May 2023 19:05:33 GMT",
"version": "v2"
},
{
"created": "Thu, 29 Jun 2023 23:27:21 GMT",
"version": "v3"
}
] | 2023-08-02 | [
[
"Baker",
"Noah P.",
""
],
[
"Frolov",
"Valeri P.",
""
]
] | In this paper, the orbits of a charged particle near the event horizon of a magnetized black hole are investigated. For a static black hole of mass $M$ immersed in a homogeneous magnetic field $B$, the dimensionless parameter $b=eBGM/ (mc^4)$ controls the radius of the circular orbits and determines the position of the... |
gr-qc/0008010 | Giovanni Amelino-Camelia | Giovanni Amelino-Camelia | Planck-Length Phenomenology | Paper awarded an ``honorable mention'' in the Annual Competition of
the Gravity Research Foundation for the year 2000 (LaTex, 7 pages, no
figures) | Int.J.Mod.Phys. D10 (2001) 1-8 | 10.1142/S0218271801001128 | null | gr-qc | null | This author's recent proposal of interferometric tests of
Planck-scale-related properties of space-time is here revisited from a strictly
phenomenological viewpoint. The results announced previously are rederived
using elementary dimensional considerations. The dimensional analysis is then
extended to the other two c... | [
{
"created": "Fri, 4 Aug 2000 11:49:28 GMT",
"version": "v1"
}
] | 2009-10-31 | [
[
"Amelino-Camelia",
"Giovanni",
""
]
] | This author's recent proposal of interferometric tests of Planck-scale-related properties of space-time is here revisited from a strictly phenomenological viewpoint. The results announced previously are rederived using elementary dimensional considerations. The dimensional analysis is then extended to the other two cla... |
2010.00120 | Vijay Varma | Afura Taylor and Vijay Varma | Gravitational wave peak luminosity model for precessing binary black
holes | 5 pages, 4 figures; matches PRD version | Phys. Rev. D 102, 104047 (2020) | 10.1103/PhysRevD.102.104047 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | When two black holes merge, a tremendous amount of energy is released in the
form of gravitational radiation in a short span of time, making such events
among the most luminous phenomenon in the universe. Models that predict the
peak luminosity of black hole mergers are of interest to the gravitational wave
community... | [
{
"created": "Wed, 30 Sep 2020 21:53:40 GMT",
"version": "v1"
},
{
"created": "Wed, 18 Nov 2020 17:42:33 GMT",
"version": "v2"
}
] | 2020-11-25 | [
[
"Taylor",
"Afura",
""
],
[
"Varma",
"Vijay",
""
]
] | When two black holes merge, a tremendous amount of energy is released in the form of gravitational radiation in a short span of time, making such events among the most luminous phenomenon in the universe. Models that predict the peak luminosity of black hole mergers are of interest to the gravitational wave community, ... |
1911.06280 | Aritra Ghosh | Aritra Ghosh and Chandrasekhar Bhamidipati | Thermodynamic geometry for charged Gauss-Bonnet black holes in AdS
spacetimes | 26 pages, 8 figures; v3: refs added, revised version; v4: typos
corrected | Phys. Rev. D 101, 046005 (2020) | 10.1103/PhysRevD.101.046005 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper, we study the thermodynamic geometry of charged Gauss-Bonnet
black holes (and Reissner-Nordstr\"{o}m black holes, for the sake of
comparison) in AdS: in both $(T,V)$- and $(S,P)$-planes. The thermodynamic
phase space is known to have an underlying contact and metric structure;
Ruppeiner geometry then na... | [
{
"created": "Thu, 14 Nov 2019 18:03:49 GMT",
"version": "v1"
},
{
"created": "Wed, 11 Dec 2019 06:42:40 GMT",
"version": "v2"
},
{
"created": "Tue, 28 Jan 2020 18:35:09 GMT",
"version": "v3"
},
{
"created": "Thu, 7 May 2020 18:32:52 GMT",
"version": "v4"
}
] | 2020-05-11 | [
[
"Ghosh",
"Aritra",
""
],
[
"Bhamidipati",
"Chandrasekhar",
""
]
] | In this paper, we study the thermodynamic geometry of charged Gauss-Bonnet black holes (and Reissner-Nordstr\"{o}m black holes, for the sake of comparison) in AdS: in both $(T,V)$- and $(S,P)$-planes. The thermodynamic phase space is known to have an underlying contact and metric structure; Ruppeiner geometry then natu... |
1211.2047 | Prabir Rudra | Prabir Rudra | Emergent Universe With Exotic Matter In Loop Quantum Cosmology, DGP
Brane World and Kaluza-Klein Cosmology | 13 pages, 16 figures, 1 table. arXiv admin note: text overlap with
arXiv:1105.1091 | Modern Physics Letters A, Vol. 27, No. 33 (2012) 1250189 | 10.1142/S0217732312501891 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this work we have investigated the emergent scenario of the universe
described by Loop quantum cosmology model, DGP brane model and Kaluza-Klein
cosmology. Scalar field along with barotropic fluid as normal matter is
considered as the matter content of the universe. In Loop quantum cosmology it
is found that the e... | [
{
"created": "Fri, 9 Nov 2012 05:39:43 GMT",
"version": "v1"
}
] | 2012-11-12 | [
[
"Rudra",
"Prabir",
""
]
] | In this work we have investigated the emergent scenario of the universe described by Loop quantum cosmology model, DGP brane model and Kaluza-Klein cosmology. Scalar field along with barotropic fluid as normal matter is considered as the matter content of the universe. In Loop quantum cosmology it is found that the eme... |
1112.5763 | Jose' P. S. Lemos | Jos\'e P. S. Lemos | Black holes and quasiblack holes: Some history and remarks | 12 pages, 3 figures. Scientific Proceedings of Kazan State University
(Uchenye Zapiski Kazanskogo Universiteta (UZKGU)) (2011), ed. A. Aminova.
Based on the Invited Lecture in the Petrov 2010 Anniversary Symposium on
General Relativity and Gravitation, Kazan, Russia, November 1-6, 2010 | Uch.Zap.Kazan.Univers.153:215,2011 | null | null | gr-qc astro-ph.SR hep-th physics.hist-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A brief reference to the two Schwarzschild solutions and what Petrov had to
say about them is given. Comments on how the Schwarzschild vacuum solution
describes a black hole are also provided. Then we compare the properties,
differences and similarities between black holes and quasiblack holes. Black
holes are well k... | [
{
"created": "Sun, 25 Dec 2011 02:08:19 GMT",
"version": "v1"
}
] | 2012-11-09 | [
[
"Lemos",
"José P. S.",
""
]
] | A brief reference to the two Schwarzschild solutions and what Petrov had to say about them is given. Comments on how the Schwarzschild vacuum solution describes a black hole are also provided. Then we compare the properties, differences and similarities between black holes and quasiblack holes. Black holes are well kno... |
2001.08391 | Cosimo Bambi | Ashutosh Tripathi, Menglei Zhou, Askar B. Abdikamalov, Dimitry
Ayzenberg, Cosimo Bambi, Lijun Gou, Victoria Grinberg, Honghui Liu, James F.
Steiner | Testing general relativity with the stellar-mass black hole in LMC X-1
using the continuum-fitting method | 7 pages, 3 figures. v2: refereed version | Astrophys.J. 897: 84 (2020) | 10.3847/1538-4357/ab9600 | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The iron line and the continuum-fitting methods are currently the two leading
techniques for measuring black hole spins with electromagnetic radiation. They
can be naturally extended for probing the spacetime geometry around black holes
and testing general relativity in the strong field regime. In the past couple
of ... | [
{
"created": "Thu, 23 Jan 2020 07:31:21 GMT",
"version": "v1"
},
{
"created": "Mon, 6 Jul 2020 09:51:15 GMT",
"version": "v2"
}
] | 2020-07-07 | [
[
"Tripathi",
"Ashutosh",
""
],
[
"Zhou",
"Menglei",
""
],
[
"Abdikamalov",
"Askar B.",
""
],
[
"Ayzenberg",
"Dimitry",
""
],
[
"Bambi",
"Cosimo",
""
],
[
"Gou",
"Lijun",
""
],
[
"Grinberg",
"Victoria",
""
... | The iron line and the continuum-fitting methods are currently the two leading techniques for measuring black hole spins with electromagnetic radiation. They can be naturally extended for probing the spacetime geometry around black holes and testing general relativity in the strong field regime. In the past couple of ye... |
1103.6041 | Emanuele Berti | Zhongyang Zhang, Nicolas Yunes, Emanuele Berti | Accuracy of the post-Newtonian approximation. II. Optimal asymptotic
expansion of the energy flux for quasicircular, extreme mass-ratio inspirals
into a Kerr black hole | 9 pages, 8 figures. Minor changes to match published version | Phys.Rev.D84:024029,2011 | 10.1103/PhysRevD.84.024029 | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the effect of black hole spin on the accuracy of the post-Newtonian
approximation. We focus on the gravitational energy flux for the quasicircular,
equatorial, extreme mass-ratio inspiral of a compact object into a Kerr black
hole of mass M and spin J. For a given dimensionless spin a=J/M^2 (in
geometrical u... | [
{
"created": "Wed, 30 Mar 2011 20:05:45 GMT",
"version": "v1"
},
{
"created": "Mon, 18 Jul 2011 05:29:36 GMT",
"version": "v2"
}
] | 2011-08-08 | [
[
"Zhang",
"Zhongyang",
""
],
[
"Yunes",
"Nicolas",
""
],
[
"Berti",
"Emanuele",
""
]
] | We study the effect of black hole spin on the accuracy of the post-Newtonian approximation. We focus on the gravitational energy flux for the quasicircular, equatorial, extreme mass-ratio inspiral of a compact object into a Kerr black hole of mass M and spin J. For a given dimensionless spin a=J/M^2 (in geometrical uni... |
gr-qc/0503060 | Wlodzimierz Piechocki | Jean-Pierre Gazeau, Marc Lachieze-Rey and Wlodzimierz Piechocki | On three quantization methods for particle on hyperboloid | 22 pages, no figures, revtex | null | null | null | gr-qc astro-ph hep-th quant-ph | null | We compare the respective efficiencies of three quantization methods (group
theoretical, coherent state and geometric) by quantizing the dynamics of a free
massive particle in two-dimensional de Sitter space. For each case we consider
the realization of the principal series representation of $SO_0(1,2) $ group
and it... | [
{
"created": "Mon, 14 Mar 2005 14:31:27 GMT",
"version": "v1"
},
{
"created": "Tue, 15 Mar 2005 13:43:21 GMT",
"version": "v2"
},
{
"created": "Tue, 3 Jan 2006 14:26:24 GMT",
"version": "v3"
}
] | 2007-05-23 | [
[
"Gazeau",
"Jean-Pierre",
""
],
[
"Lachieze-Rey",
"Marc",
""
],
[
"Piechocki",
"Wlodzimierz",
""
]
] | We compare the respective efficiencies of three quantization methods (group theoretical, coherent state and geometric) by quantizing the dynamics of a free massive particle in two-dimensional de Sitter space. For each case we consider the realization of the principal series representation of $SO_0(1,2) $ group and its ... |
1702.00969 | Maarten Van De Meent | Maarten van de Meent | The mass and angular momentum of reconstructed metric perturbations | Version accepted be CQG | Class.Quant.Grav. 34 (2017) no.12, 124003 | 10.1088/1361-6382/aa71c3 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We prove a key result regarding the mass and angular momentum content of
linear vacuum perturbations of the Kerr metric obtained through the formalism
developed by Chrzarnowski, Cohen, and Kegeles (CCK). More precisely we prove
that the Abbott-Deser mass and angular momentum integrals of any such
perturbation vanish,... | [
{
"created": "Fri, 3 Feb 2017 11:12:13 GMT",
"version": "v1"
},
{
"created": "Tue, 18 Jul 2017 13:00:47 GMT",
"version": "v2"
}
] | 2017-07-19 | [
[
"van de Meent",
"Maarten",
""
]
] | We prove a key result regarding the mass and angular momentum content of linear vacuum perturbations of the Kerr metric obtained through the formalism developed by Chrzarnowski, Cohen, and Kegeles (CCK). More precisely we prove that the Abbott-Deser mass and angular momentum integrals of any such perturbation vanish, w... |
gr-qc/0401067 | Alexandre Gavrilik | A.M. Gavrilik (BITP, Kiev) | Applying the q-algebras U'_q(so_n) to quantum gravity: towards
q-deformed analog of SO(n) spin networks | 6 pages (two-column), LaTeX, ujp.sty; talk given at the 13th Int.
Hutsulian Workshop "Methods of Theoretical and Mathematical Physics",
(September 2000, Kyiv, Ukraine) | Ukr.J.Phys. 47 (2002) 213-218 | null | null | gr-qc hep-th math-ph math.MP | null | Nonstandard q-deformed algebras U'_q(so_n), proposed a decade ago for the
needs of representation theory, essentially differ from the standard
Drinfeld-Jimbo quantum deformation of the algebras U(so_n) and possess with
regard to the latter a number of important advantages. We discuss possible
application of the q-alg... | [
{
"created": "Thu, 15 Jan 2004 19:19:57 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Gavrilik",
"A. M.",
"",
"BITP, Kiev"
]
] | Nonstandard q-deformed algebras U'_q(so_n), proposed a decade ago for the needs of representation theory, essentially differ from the standard Drinfeld-Jimbo quantum deformation of the algebras U(so_n) and possess with regard to the latter a number of important advantages. We discuss possible application of the q-algeb... |
1906.03641 | Edward Anderson | Edward Anderson | A Local Resolution of the Problem of Time. VII. Constraint Closure | 23 pages including 7 figures. v2 improves concepts for, and
presentation of, our temporal-relationally modified Dirac Algorithm | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We now set up Constraint Closure in a manner consistent with Temporal and
Configurational Relationalism. This requires modifying the Dirac Algorithm -
which addresses the Constraint Closure Problem facet of the Problem of Time
piecemeal - to the TRi-Dirac Algorithm. This is a member of the wider class of
Dirac-type a... | [
{
"created": "Sun, 9 Jun 2019 13:37:57 GMT",
"version": "v1"
},
{
"created": "Tue, 9 Jul 2019 16:53:34 GMT",
"version": "v2"
}
] | 2019-07-10 | [
[
"Anderson",
"Edward",
""
]
] | We now set up Constraint Closure in a manner consistent with Temporal and Configurational Relationalism. This requires modifying the Dirac Algorithm - which addresses the Constraint Closure Problem facet of the Problem of Time piecemeal - to the TRi-Dirac Algorithm. This is a member of the wider class of Dirac-type alg... |
1709.09923 | Shahram Jalalzadeh | S. Jalalzadeh, A.J.S. Capistrano and P.V. Moniz | Quantum deformation of quantum cosmology: A framework to discuss the
cosmological constant problem | 14 pages, to appear in Physics of Dark Universe | Phys. Dark Universe, 18 (2017) 55 | 10.1016/j.dark.2017.09.011 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We endorse the context that the cosmological constant problem is a quantum
cosmology issue. Therefore, in this paper we investigate the $q$-deformed
Wheeler-DeWitt equation of a spatially closed homogeneous and isotropic
Universe in the presence of a conformally coupled scalar field. Specifically,
the quantum deforme... | [
{
"created": "Thu, 28 Sep 2017 12:43:32 GMT",
"version": "v1"
}
] | 2023-05-02 | [
[
"Jalalzadeh",
"S.",
""
],
[
"Capistrano",
"A. J. S.",
""
],
[
"Moniz",
"P. V.",
""
]
] | We endorse the context that the cosmological constant problem is a quantum cosmology issue. Therefore, in this paper we investigate the $q$-deformed Wheeler-DeWitt equation of a spatially closed homogeneous and isotropic Universe in the presence of a conformally coupled scalar field. Specifically, the quantum deformed ... |
2311.13300 | Hai-Tian Wang | Hai-Tian Wang and Lijing Shao | Effect of Noise Estimation in Time-Domain Ringdown Analysis: A Case
Study with GW150914 | 6 pages, 4 figures. Accepted by PRD | Phys. Rev. D 108 (2023) 123018 | 10.1103/PhysRevD.108.123018 | null | gr-qc astro-ph.IM | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Accurate noise estimation from gravitational wave (GW) data is critical for
Bayesian inference. However, recent studies on ringdown signal, such as those
by Isi et al. [1], Cotesta et al. [2], and Isi and Farr [3], have encountered
disagreement in noise estimation, leading to inconsistent results. The key
discrepancy... | [
{
"created": "Wed, 22 Nov 2023 10:43:58 GMT",
"version": "v1"
}
] | 2023-12-22 | [
[
"Wang",
"Hai-Tian",
""
],
[
"Shao",
"Lijing",
""
]
] | Accurate noise estimation from gravitational wave (GW) data is critical for Bayesian inference. However, recent studies on ringdown signal, such as those by Isi et al. [1], Cotesta et al. [2], and Isi and Farr [3], have encountered disagreement in noise estimation, leading to inconsistent results. The key discrepancy b... |
gr-qc/9505050 | Luanne Neumann | G.F. Chew | Testing Single-Parameter Classical Standpoint Cosmology | 27 pages, latexed, math_macros.tex used, full postscript available
from: http://theor1.lbl.gov/www/theorgroup/papers/37162.ps | null | null | LBL-37162 | gr-qc | null | Experimental tests of homogeneous-universe classical standpoint cosmology are
proposed after presentation of conceptual considerations that encourage this
radical departure from the standard model. Among predictions of the new model
are standpoint age equal to Hubble time, energy-density parameter $\Omega_0 = 2
- \sq... | [
{
"created": "Tue, 30 May 1995 17:49:27 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Chew",
"G. F.",
""
]
] | Experimental tests of homogeneous-universe classical standpoint cosmology are proposed after presentation of conceptual considerations that encourage this radical departure from the standard model. Among predictions of the new model are standpoint age equal to Hubble time, energy-density parameter $\Omega_0 = 2 - \sqrt... |
gr-qc/0203041 | Stoytcho Yazadjiev | Stoytcho S. Yazadjiev (Sofia University) | Geodesically complete nondiagonal inhomogeneous cosmological solutions
in dilatonic gravity with a stiff perfect fluid | 11 pages, Revtex; v2 improvements, references and acknowledgments
added; v3 comments, references and acknowledgments added, Phys. Rev. D in
press | Phys.Rev. D66 (2002) 024031 | 10.1103/PhysRevD.66.024031 | null | gr-qc astro-ph hep-th | null | New nondiagonal $G_{2}$ inhomogeneous cosmological solutions are presented in
a wide range of scalar-tensor theories with a stiff perfect fluid as a matter
source. The solutions have no big-bang singularity or any other curvature
singularities. The dilaton field and the fluid energy density are everywhere
regular, to... | [
{
"created": "Tue, 12 Mar 2002 17:08:53 GMT",
"version": "v1"
},
{
"created": "Thu, 28 Mar 2002 11:12:43 GMT",
"version": "v2"
},
{
"created": "Thu, 4 Jul 2002 07:11:20 GMT",
"version": "v3"
}
] | 2009-11-07 | [
[
"Yazadjiev",
"Stoytcho S.",
"",
"Sofia University"
]
] | New nondiagonal $G_{2}$ inhomogeneous cosmological solutions are presented in a wide range of scalar-tensor theories with a stiff perfect fluid as a matter source. The solutions have no big-bang singularity or any other curvature singularities. The dilaton field and the fluid energy density are everywhere regular, too.... |
2007.03050 | Eric Poisson | Eric Poisson and Cyann Buisson | Tidal driving of inertial modes of Maclaurin spheroids | 28 pages, 7 figures, revised after referee comments, new Appendix,
matches published version | Phys. Rev. D 102, 104005 (2020) | 10.1103/PhysRevD.102.104005 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We examine the inertial modes of vibration of a Maclaurin spheroid and
determine how they are driven by an external tidal field, either Newtonian
(gravitoelectric) or post-Newtonian (gravitomagnetic). The context and
motivation for this work come from the realization that inertial modes of
rotating neutron stars can ... | [
{
"created": "Mon, 6 Jul 2020 20:23:40 GMT",
"version": "v1"
},
{
"created": "Fri, 23 Oct 2020 12:20:38 GMT",
"version": "v2"
}
] | 2020-11-11 | [
[
"Poisson",
"Eric",
""
],
[
"Buisson",
"Cyann",
""
]
] | We examine the inertial modes of vibration of a Maclaurin spheroid and determine how they are driven by an external tidal field, either Newtonian (gravitoelectric) or post-Newtonian (gravitomagnetic). The context and motivation for this work come from the realization that inertial modes of rotating neutron stars can be... |
2001.02038 | Junji Jia | Junji Jia | The perturbative approach for the weak deflection angle | 42 pages, 5 figures; typos and grammar corrected; references added; | null | 10.1140/epjc/s10052-020-7796-y | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Both null and timelike rays experience trajectory bending in a gravitational
field. In this work, we systematically develop a perturbative method to compute
the deflection angle of rays with general velocity $v$ in arbitrary static and
spherically symmetric spacetimes and in equatorial plane of arbitrary static
and a... | [
{
"created": "Tue, 7 Jan 2020 14:08:13 GMT",
"version": "v1"
},
{
"created": "Wed, 8 Jan 2020 17:13:41 GMT",
"version": "v2"
},
{
"created": "Tue, 18 Feb 2020 00:07:04 GMT",
"version": "v3"
}
] | 2020-04-22 | [
[
"Jia",
"Junji",
""
]
] | Both null and timelike rays experience trajectory bending in a gravitational field. In this work, we systematically develop a perturbative method to compute the deflection angle of rays with general velocity $v$ in arbitrary static and spherically symmetric spacetimes and in equatorial plane of arbitrary static and axi... |
gr-qc/0203105 | Guillermo F. Rubilar | Friedrich W. Hehl, Yuri N. Obukhov and Guillermo F. Rubilar | Light propagation in generally covariant electrodynamics and the Fresnel
equation | 6 pages, uses ws-ijmpa.cls. Invited talk given at Journees
Relativistes, University College Dublin, Sept. 2001. Will appear in
Int.J.Mod.Phys.A | Int.J.Mod.Phys. A17 (2002) 2695-2700 | 10.1142/S0217751X0201162X | null | gr-qc hep-th | null | Within the framework of generally covariant (pre-metric) electrodynamics, we
specify a local vacuum spacetime relation between the excitation $H=({\cal
D},{\cal H})$ and the field strength $F=(E,B)$. We study the propagation of
electromagnetic waves in such a spacetime by Hadamard's method and arrive, with
the consti... | [
{
"created": "Thu, 28 Mar 2002 15:38:20 GMT",
"version": "v1"
}
] | 2009-11-07 | [
[
"Hehl",
"Friedrich W.",
""
],
[
"Obukhov",
"Yuri N.",
""
],
[
"Rubilar",
"Guillermo F.",
""
]
] | Within the framework of generally covariant (pre-metric) electrodynamics, we specify a local vacuum spacetime relation between the excitation $H=({\cal D},{\cal H})$ and the field strength $F=(E,B)$. We study the propagation of electromagnetic waves in such a spacetime by Hadamard's method and arrive, with the constitu... |
2111.13739 | Adri\'an Francisco Eduarte-Rojas | Adri\'an Francisco Eduarte-Rojas, Francisco Frutos-Alfaro, Rodrigo
Carboni and Daniel Alvarado | Chaotic Behavior of Geodesics in Kerr-like Spacetime | 30 pages, 32 figures | null | 10.1103/PhysRevD.106.064015 | null | gr-qc nlin.CD | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this contribution, the motion of unitary mass test particles in a
perturbed Kerr-like metric is studied using simulations in the configuration
and phase space. Our metric represents the approximate exterior spacetime of a
massive rotating body with mass quadrupole moment $q$. Chaotic behavior arises
as the $q$ par... | [
{
"created": "Fri, 26 Nov 2021 20:28:51 GMT",
"version": "v1"
}
] | 2022-09-21 | [
[
"Eduarte-Rojas",
"Adrián Francisco",
""
],
[
"Frutos-Alfaro",
"Francisco",
""
],
[
"Carboni",
"Rodrigo",
""
],
[
"Alvarado",
"Daniel",
""
]
] | In this contribution, the motion of unitary mass test particles in a perturbed Kerr-like metric is studied using simulations in the configuration and phase space. Our metric represents the approximate exterior spacetime of a massive rotating body with mass quadrupole moment $q$. Chaotic behavior arises as the $q$ param... |
gr-qc/9408035 | Kumar Shwetketu Virbhadra | K. S. Virbhadra | Exact solutions of Einstein and Einstein-scalar equations in 2 + 1
dimensions | 8 pages, Latex, no number | Pramana 44 (1995) 317-322 | 10.1007/BF02847608 | null | gr-qc hep-th | null | A nonstatic and circularly symmetric exact solution of the Einstein equations
(with a cosmological constant $\Lambda$ and null fluid) in $2+1$ dimensions is
given. This is a nonstatic generalization of the uncharged spinless BTZ metric.
For $\Lambda = 0 $, the spacetime is though not flat, the Kretschmann invariant
v... | [
{
"created": "Mon, 29 Aug 1994 14:42:00 GMT",
"version": "v1"
}
] | 2009-10-22 | [
[
"Virbhadra",
"K. S.",
""
]
] | A nonstatic and circularly symmetric exact solution of the Einstein equations (with a cosmological constant $\Lambda$ and null fluid) in $2+1$ dimensions is given. This is a nonstatic generalization of the uncharged spinless BTZ metric. For $\Lambda = 0 $, the spacetime is though not flat, the Kretschmann invariant van... |
1012.0241 | Evgeny Novikov | S. G. Chefranov, E. A. Novikov | Hydrodynamic Vacuum Sources of Dark Matter Self-Generation in
Accelerated Universe without Big Bang | 22 pages, 1 figure | Zh.Eksp.Teor.Fiz.138:830-843,2010;
J.Exp.Theor.Phys.111:731-743,2010 | 10.1134/S106377611011004X | null | gr-qc astro-ph.CO physics.flu-dyn physics.gen-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We have obtained a generalization of the hydrodynamic theory of vacuum in the
context of general relativity. While retaining the Lagrangian character of
general relativity, the new theory provides a natural alternative to the view
that the singularity is inevitable in general relativity and in the theory of a
hot Uni... | [
{
"created": "Tue, 30 Nov 2010 02:33:52 GMT",
"version": "v1"
}
] | 2011-01-27 | [
[
"Chefranov",
"S. G.",
""
],
[
"Novikov",
"E. A.",
""
]
] | We have obtained a generalization of the hydrodynamic theory of vacuum in the context of general relativity. While retaining the Lagrangian character of general relativity, the new theory provides a natural alternative to the view that the singularity is inevitable in general relativity and in the theory of a hot Unive... |
0803.2855 | Enore Guadagnini | E. Guadagnini | Gravitons scattering from classical matter | 15 pages, 3 figures, to be published in Classical and Quantum Gravity | Class.Quant.Grav.25:095012,2008 | 10.1088/0264-9381/25/9/095012 | IFUP-TH/2008-07 | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The low energy scattering of gravitons from a composite extended system,
which is made of classical massive bodies, is considered; by using the Feynman
rules of effective quantum gravity, the corresponding cross-section is computed
to lowest order in powers of the gravitational coupling constant. For the
gravitons sc... | [
{
"created": "Wed, 19 Mar 2008 17:58:30 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Guadagnini",
"E.",
""
]
] | The low energy scattering of gravitons from a composite extended system, which is made of classical massive bodies, is considered; by using the Feynman rules of effective quantum gravity, the corresponding cross-section is computed to lowest order in powers of the gravitational coupling constant. For the gravitons scat... |
2102.01831 | Matt Visser | Aden Jowsey (Victoria University of Wellington) and Matt Visser
(Victoria University of Wellington) | Counterexamples to the maximum force conjecture | V1: 29 pages; 6 figures; V2: minor typos fixed | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Dimensional analysis shows that the speed of light and Newton's constant of
gravitation can be combined to define a quantity $F_* = {c^4\over G_N}$ with
the dimensions of force (equivalently, tension). Then in any physical situation
we must have $F_{physical} = f \; F_*$, where the quantity $f$ is some
dimensionless ... | [
{
"created": "Wed, 3 Feb 2021 01:41:19 GMT",
"version": "v1"
},
{
"created": "Tue, 2 Mar 2021 06:38:06 GMT",
"version": "v2"
}
] | 2021-03-03 | [
[
"Jowsey",
"Aden",
"",
"Victoria University of Wellington"
],
[
"Visser",
"Matt",
"",
"Victoria University of Wellington"
]
] | Dimensional analysis shows that the speed of light and Newton's constant of gravitation can be combined to define a quantity $F_* = {c^4\over G_N}$ with the dimensions of force (equivalently, tension). Then in any physical situation we must have $F_{physical} = f \; F_*$, where the quantity $f$ is some dimensionless fu... |
gr-qc/0608031 | Nikodem Poplawski | Nikodem J. Poplawski | A Lagrangian description of interacting dark energy | 14 pages; corrected errors, added comments | null | null | null | gr-qc astro-ph hep-th | null | We propose a relativistically covariant model of interacting dark energy
based on the principle of least action. The cosmological term $\Lambda$ in the
gravitational Lagrangian is a function of the trace of the energy--momentum
tensor $T$. We find that the $\Lambda(T)$ gravity is more general than the
Palatini $f(R)$... | [
{
"created": "Mon, 7 Aug 2006 02:32:43 GMT",
"version": "v1"
},
{
"created": "Mon, 25 Sep 2006 03:01:02 GMT",
"version": "v2"
}
] | 2007-05-23 | [
[
"Poplawski",
"Nikodem J.",
""
]
] | We propose a relativistically covariant model of interacting dark energy based on the principle of least action. The cosmological term $\Lambda$ in the gravitational Lagrangian is a function of the trace of the energy--momentum tensor $T$. We find that the $\Lambda(T)$ gravity is more general than the Palatini $f(R)$ g... |
2105.03730 | Mehdi Vatandoost | Mehdi Vatandoost, Rahimeh Pourkhandani and Neda Ebrahimi | Causally simple spacetimes and naked singularities | null | null | null | null | gr-qc math-ph math.DG math.MP | http://creativecommons.org/licenses/by-nc-nd/4.0/ | In this paper, We prove a conjecture which states that if M is a nakedly
singular future boundary or nakedly singular past boundary spacetime, then the
space of null geodesics, N, is non-Hausdorff. Also, we show that every
two-dimensional strongly causal spacetime M is causally simple if and only if
it is null pseudo... | [
{
"created": "Sat, 8 May 2021 16:23:10 GMT",
"version": "v1"
}
] | 2021-05-11 | [
[
"Vatandoost",
"Mehdi",
""
],
[
"Pourkhandani",
"Rahimeh",
""
],
[
"Ebrahimi",
"Neda",
""
]
] | In this paper, We prove a conjecture which states that if M is a nakedly singular future boundary or nakedly singular past boundary spacetime, then the space of null geodesics, N, is non-Hausdorff. Also, we show that every two-dimensional strongly causal spacetime M is causally simple if and only if it is null pseudoco... |
2110.06867 | Griselda Figueroa Aguirre | Cecilia Bejarano, Ernesto F. Eiroa, Griselda Figueroa-Aguirre | Circularly symmetric thin-shell wormholes in F(R) gravity with
(2+1)-dimensions | 8 pages, 2 figures; prepared for the Proceedings of the Sixteenth
Marcel Grossmann Meeting - MG16 | Proceedings of the Sixteenth Marcel Grossmann Meeting (MG16),
pages 831-839 (World Scientific, Singapore, 2023) | 10.1142/9789811269776_0065 | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | Within the framework of $F(R)$ theories of gravity with (2+1)-dimensions and
constant scalar curvature $R$, we construct a family of thin-shell wormholes
with circular symmetry and we analyze the stability of the static
configurations under radial perturbations. We show an example of asymptotically
anti-de Sitter thi... | [
{
"created": "Wed, 13 Oct 2021 17:03:31 GMT",
"version": "v1"
}
] | 2023-01-31 | [
[
"Bejarano",
"Cecilia",
""
],
[
"Eiroa",
"Ernesto F.",
""
],
[
"Figueroa-Aguirre",
"Griselda",
""
]
] | Within the framework of $F(R)$ theories of gravity with (2+1)-dimensions and constant scalar curvature $R$, we construct a family of thin-shell wormholes with circular symmetry and we analyze the stability of the static configurations under radial perturbations. We show an example of asymptotically anti-de Sitter thin-... |
2303.16924 | Hong Lu | Zhi-Chao Li and H. Lu | Regular Black Holes and Stars from Analytic $f(F^2)$ | Latex, 28 pages, 2 plots grouped into one figure, typos corrected,
references added, further discussions on electrically-charged regular black
holes, new references added, a new self-dual NLED added | null | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We construct regular black holes and stars that are geodesically complete and
satisfy the dominant energy condition from Einstein-$f(F^2)$ gravities with
several classes of analytic $f(F^2)$ functions that can be viewed as
perturbations to Maxwell's theory in weak field limit. We establish that
regular black holes wi... | [
{
"created": "Wed, 29 Mar 2023 18:00:01 GMT",
"version": "v1"
},
{
"created": "Thu, 6 Apr 2023 11:42:33 GMT",
"version": "v2"
},
{
"created": "Tue, 11 Apr 2023 11:59:29 GMT",
"version": "v3"
}
] | 2023-04-12 | [
[
"Li",
"Zhi-Chao",
""
],
[
"Lu",
"H.",
""
]
] | We construct regular black holes and stars that are geodesically complete and satisfy the dominant energy condition from Einstein-$f(F^2)$ gravities with several classes of analytic $f(F^2)$ functions that can be viewed as perturbations to Maxwell's theory in weak field limit. We establish that regular black holes with... |
1411.3661 | Suddhasattwa Brahma | Suddhasattwa Brahma | Spherically symmetric canonical quantum gravity | 21 pages; minor corrections and additional references | Phys. Rev. D 91, 124003 (2015) | 10.1103/PhysRevD.91.124003 | IGC-14/11-1 | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Canonical quantization of spherically symmetric space-times is carried out,
using real-valued densitized triads and extrinsic curvature components, with
specific factor ordering choices ensuring in an anomaly free quantum constraint
algebra. Comparison with previous work [1] reveals that the resulting physical
Hilber... | [
{
"created": "Thu, 13 Nov 2014 18:51:04 GMT",
"version": "v1"
},
{
"created": "Thu, 4 Jun 2015 01:20:14 GMT",
"version": "v2"
}
] | 2015-06-05 | [
[
"Brahma",
"Suddhasattwa",
""
]
] | Canonical quantization of spherically symmetric space-times is carried out, using real-valued densitized triads and extrinsic curvature components, with specific factor ordering choices ensuring in an anomaly free quantum constraint algebra. Comparison with previous work [1] reveals that the resulting physical Hilbert ... |
0706.2933 | Alfredo L\'opez Ortega | A. L\'opez-Ortega | Electromagnetic quasinormal modes of D-dimensional black holes II | 34 pages, 14 figures, 6 tables | Gen.Rel.Grav.40:1379-1401,2008 | 10.1007/s10714-007-0538-8 | null | gr-qc | null | By using the sixth order WKB approximation we calculate for an
electromagnetic field propagating in D-dimensional Schwarzschild and
Schwarzschild de Sitter black holes its quasinormal frequencies for the
fundamental mode and first overtones. We study the dependence of these QN
frequencies on the value of the cosmolog... | [
{
"created": "Wed, 20 Jun 2007 08:04:55 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"López-Ortega",
"A.",
""
]
] | By using the sixth order WKB approximation we calculate for an electromagnetic field propagating in D-dimensional Schwarzschild and Schwarzschild de Sitter black holes its quasinormal frequencies for the fundamental mode and first overtones. We study the dependence of these QN frequencies on the value of the cosmologic... |
gr-qc/0004031 | Jiri Bicak | Jiri Bicak | Exact radiative spacetimes: some recent developments | 10 pages, Invited talk, Journees Relativiste 1999 | Annalen Phys.9:207-216,2000 | 10.1002/(SICI)1521-3889(200005)9:3/5<207::AID-ANDP207>3.0.CO;2-L | null | gr-qc astro-ph hep-th | null | Five classes of radiative solutions of Einstein's field equations are
discussed in the light of some new developments. These are plane waves and
their collisions, cylindrical waves, Robinson-Trautman and type N spacetimes,
boost-rotation symmetric spacetimes and generalized Gowdy-type cosmological
models
| [
{
"created": "Mon, 10 Apr 2000 17:03:11 GMT",
"version": "v1"
}
] | 2017-09-27 | [
[
"Bicak",
"Jiri",
""
]
] | Five classes of radiative solutions of Einstein's field equations are discussed in the light of some new developments. These are plane waves and their collisions, cylindrical waves, Robinson-Trautman and type N spacetimes, boost-rotation symmetric spacetimes and generalized Gowdy-type cosmological models |
1105.0122 | Bruno Giacomazzo | Bruno Giacomazzo, Luciano Rezzolla, Nikolaos Stergioulas | Collapse of differentially rotating neutron stars and cosmic censorship | 15 pages, 15 figures. Minor changes to the text and to the
references. In press on Phys. Rev. D | Phys.Rev.D84:024022,2011 | 10.1103/PhysRevD.84.024022 | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present new results on the dynamics and gravitational-wave emission from
the collapse of differentially rotating neutron stars. We have considered a
number of polytropic stellar models having different values of the
dimensionless angular momentum J/M^2, where J and M are the asymptotic angular
momentum and mass of... | [
{
"created": "Sat, 30 Apr 2011 21:50:41 GMT",
"version": "v1"
},
{
"created": "Thu, 7 Jul 2011 21:00:30 GMT",
"version": "v2"
}
] | 2015-03-19 | [
[
"Giacomazzo",
"Bruno",
""
],
[
"Rezzolla",
"Luciano",
""
],
[
"Stergioulas",
"Nikolaos",
""
]
] | We present new results on the dynamics and gravitational-wave emission from the collapse of differentially rotating neutron stars. We have considered a number of polytropic stellar models having different values of the dimensionless angular momentum J/M^2, where J and M are the asymptotic angular momentum and mass of t... |
2311.10559 | Yong-Hui Qi | Bum-Hoon Lee, Wonwoo Lee, and Yong-Hui Qi | Superradiance in the Kerr-Taub-NUT spacetime | 42 pages, 2 figures | null | null | null | gr-qc astro-ph.HE hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Superradiance is the effect of field waves being amplified during reflection
from a charged or rotating black hole. In this paper, we study the low-energy
dynamics of super-radiant scattering of massive scalar and massless higher spin
field perturbations in a generic axisymmetric stationary Kerr-Taub-NUT
(Newman-Unti... | [
{
"created": "Fri, 17 Nov 2023 14:51:36 GMT",
"version": "v1"
}
] | 2023-11-20 | [
[
"Lee",
"Bum-Hoon",
""
],
[
"Lee",
"Wonwoo",
""
],
[
"Qi",
"Yong-Hui",
""
]
] | Superradiance is the effect of field waves being amplified during reflection from a charged or rotating black hole. In this paper, we study the low-energy dynamics of super-radiant scattering of massive scalar and massless higher spin field perturbations in a generic axisymmetric stationary Kerr-Taub-NUT (Newman-Unti-T... |
1304.7020 | Cristian Stelea | Jutta Kunz, Petya G. Nedkova, Cristian Stelea | Charged black holes on Kaluza-Klein bubbles | 23 pages, 2 figures | null | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We construct exact solutions of the Einstein-Maxwell-Dilaton field equations
in five dimensions, which describe general configurations of charged and static
black holes sitting on a Kaluza-Klein bubble. More specifically we discuss the
configurations describing two black holes sitting on a Kaluza-Klein bubble and
als... | [
{
"created": "Thu, 25 Apr 2013 20:19:47 GMT",
"version": "v1"
}
] | 2013-04-29 | [
[
"Kunz",
"Jutta",
""
],
[
"Nedkova",
"Petya G.",
""
],
[
"Stelea",
"Cristian",
""
]
] | We construct exact solutions of the Einstein-Maxwell-Dilaton field equations in five dimensions, which describe general configurations of charged and static black holes sitting on a Kaluza-Klein bubble. More specifically we discuss the configurations describing two black holes sitting on a Kaluza-Klein bubble and also ... |
0810.0746 | Yu-ichi Takamizu | Yu-ichi Takamizu and Shinji Mukohyama | Nonlinear superhorizon perturbations of non-canonical scalar field | 14 pages | JCAP 0901:013,2009 | 10.1088/1475-7516/2009/01/013 | null | gr-qc astro-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We develop a theory of non-linear cosmological perturbations at superhorizon
scales for a scalar field with a Lagrangian of the form $P(X,\phi)$, where
$X=-\partial^{\mu}\phi\partial_{\mu}\phi$ and $\phi$ is the scalar field. We
employ the ADM formalism and the spatial gradient expansion approach to obtain
general so... | [
{
"created": "Sat, 4 Oct 2008 05:29:23 GMT",
"version": "v1"
}
] | 2009-01-16 | [
[
"Takamizu",
"Yu-ichi",
""
],
[
"Mukohyama",
"Shinji",
""
]
] | We develop a theory of non-linear cosmological perturbations at superhorizon scales for a scalar field with a Lagrangian of the form $P(X,\phi)$, where $X=-\partial^{\mu}\phi\partial_{\mu}\phi$ and $\phi$ is the scalar field. We employ the ADM formalism and the spatial gradient expansion approach to obtain general solu... |
gr-qc/0302021 | Choquet-Bruhat | Yvonne Choquet-Bruhat and Vincent Moncrief | Non linear stability of einsteinian spacetimes with U(1) isometry group | Conference in honor of J. Leray, Tokyo 2001, Kajitani and Vaillant
ed. to appear Birkhauser | null | null | null | gr-qc | null | We prove global completeness in the expanding direction of spacetimes
satisfying the vacuum Einstein equations on a manifold of the form $\Sigma
\times S^{1}\times R$ where $\Sigma $ is a compact surface of genus $G>1.$ The
Cauchy data are supposed to be invariant with respect to the group $S^{1}$ and
sufficiently sm... | [
{
"created": "Fri, 7 Feb 2003 20:45:13 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Choquet-Bruhat",
"Yvonne",
""
],
[
"Moncrief",
"Vincent",
""
]
] | We prove global completeness in the expanding direction of spacetimes satisfying the vacuum Einstein equations on a manifold of the form $\Sigma \times S^{1}\times R$ where $\Sigma $ is a compact surface of genus $G>1.$ The Cauchy data are supposed to be invariant with respect to the group $S^{1}$ and sufficiently smal... |
1601.01655 | Serguei Krasnikov | S. Krasnikov | Finite energy quantization on a topology changing spacetime | v.2 The zeroth mode is abandoned. The presentation is simplified and
clarified v.3 Title has changed. A few typos are corrected, etc | Physical Review D 94 (2016) 044055 | 10.1103/PhysRevD.94.044055 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The "trousers" spacetime is a pair of flat 2D cylinders ("legs") merging into
into a single one ("trunk"). In spite of its simplicity this spacetime has a
few features (including, in particular, a naked singularity in the "crotch")
each of which is presumably unphysical, but for none of which a mechanism is
known abl... | [
{
"created": "Thu, 7 Jan 2016 20:16:41 GMT",
"version": "v1"
},
{
"created": "Tue, 24 May 2016 11:06:20 GMT",
"version": "v2"
},
{
"created": "Wed, 24 Aug 2016 13:55:39 GMT",
"version": "v3"
}
] | 2016-09-21 | [
[
"Krasnikov",
"S.",
""
]
] | The "trousers" spacetime is a pair of flat 2D cylinders ("legs") merging into into a single one ("trunk"). In spite of its simplicity this spacetime has a few features (including, in particular, a naked singularity in the "crotch") each of which is presumably unphysical, but for none of which a mechanism is known able ... |
1608.06271 | Rod Aros Mr. | Rodrigo Aros and Danilo Diaz and Milko Estrada and Alejandra
Montecinos | Black hole at Lovelock gravity with anisotropic fluid | 16 pages, 2 figures | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this work a new family of black hole solutions in Lovelock gravity is
discussed. These solutions describe anisotropic fluids which extend to the
spatial infinity. Though far from the horizon their geometries approach some
previously known black holes solutions the location of the horizons differ.
Furthemore, altho... | [
{
"created": "Mon, 22 Aug 2016 19:44:47 GMT",
"version": "v1"
}
] | 2016-08-23 | [
[
"Aros",
"Rodrigo",
""
],
[
"Diaz",
"Danilo",
""
],
[
"Estrada",
"Milko",
""
],
[
"Montecinos",
"Alejandra",
""
]
] | In this work a new family of black hole solutions in Lovelock gravity is discussed. These solutions describe anisotropic fluids which extend to the spatial infinity. Though far from the horizon their geometries approach some previously known black holes solutions the location of the horizons differ. Furthemore, althoug... |
2006.13907 | Naveena Kumara A | A. Naveena Kumara, C.L. Ahmed Rizwan, Kartheek Hegde, Md Sabir Ali and
Ajith K.M | Microstructure of five-dimensional neutral Gauss-Bonnet black hole in
anti-de Sitter spacetime via $P-V$ criticality | 14 pages, 3 figures | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this article, we analytically investigate the microstructure of a
five-dimensional neutral Gauss-Bonnet black hole, in the background of anti-de
Sitter spacetime, using scalar curvature of the Ruppeiner geometry constructed
via adiabatic compressibility. The microstructure details associated with the
small-large b... | [
{
"created": "Wed, 24 Jun 2020 17:40:04 GMT",
"version": "v1"
}
] | 2021-02-16 | [
[
"Kumara",
"A. Naveena",
""
],
[
"Rizwan",
"C. L. Ahmed",
""
],
[
"Hegde",
"Kartheek",
""
],
[
"Ali",
"Md Sabir",
""
],
[
"M",
"Ajith K.",
""
]
] | In this article, we analytically investigate the microstructure of a five-dimensional neutral Gauss-Bonnet black hole, in the background of anti-de Sitter spacetime, using scalar curvature of the Ruppeiner geometry constructed via adiabatic compressibility. The microstructure details associated with the small-large bla... |
1201.4994 | Kartik Prabhu | Naresh Dadhich, Josep M. Pons, Kartik Prabhu | On the static Lovelock black holes | 19 pages | GRG 45 (2013) 1131-1144 | 10.1007/s10714-013-1514-0 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider static spherically symmetric Lovelock black holes and generalize
the dimensionally continued black holes in such a way that they asymptotically
for large r go over to the d-dimensional Schwarzschild black hole in dS/AdS
spacetime. This means that the master algebraic polynomial is not degenerate
but inste... | [
{
"created": "Fri, 20 Jan 2012 21:06:11 GMT",
"version": "v1"
},
{
"created": "Tue, 28 May 2013 23:33:59 GMT",
"version": "v2"
}
] | 2013-05-30 | [
[
"Dadhich",
"Naresh",
""
],
[
"Pons",
"Josep M.",
""
],
[
"Prabhu",
"Kartik",
""
]
] | We consider static spherically symmetric Lovelock black holes and generalize the dimensionally continued black holes in such a way that they asymptotically for large r go over to the d-dimensional Schwarzschild black hole in dS/AdS spacetime. This means that the master algebraic polynomial is not degenerate but instead... |
gr-qc/0607131 | Herbert Hamber | Herbert W. Hamber and Ruth M. Williams | Constraints on Gravitational Scaling Dimensions from Non-Local Effective
Field Equations | 14 pages | Phys.Lett.B643:228-234,2006 | 10.1016/j.physletb.2006.10.049 | CERN-PH-TH/2006-147 | gr-qc hep-th | null | Quantum corrections to the classical field equations, induced by a scale
dependent gravitational constant, are analyzed in the case of the static
isotropic metric. The requirement of general covariance for the resulting
non-local effective field equations puts severe restrictions on the nature of
the solutions that c... | [
{
"created": "Fri, 28 Jul 2006 14:09:29 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Hamber",
"Herbert W.",
""
],
[
"Williams",
"Ruth M.",
""
]
] | Quantum corrections to the classical field equations, induced by a scale dependent gravitational constant, are analyzed in the case of the static isotropic metric. The requirement of general covariance for the resulting non-local effective field equations puts severe restrictions on the nature of the solutions that can... |
2104.08725 | Vardarajan Suneeta | Sreejith Nair, Vardarajan Suneeta | The Black hole Black string phase transition in Einstein-Gauss-Bonnet
gravity | 23 pages, modifications, subsection added | Phys. Rev. D 104, 044042 (2021) | 10.1103/PhysRevD.104.044042 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate the presence of a black hole black string phase transition in
Einstein Gauss Bonnet (EGB) gravity in the large dimension limit. The merger
point is the static spacetime connecting the black string phase with the black
hole phase. We consider several ranges of the Gauss-Bonnet parameter. We find
that th... | [
{
"created": "Sun, 18 Apr 2021 05:30:29 GMT",
"version": "v1"
},
{
"created": "Wed, 30 Jun 2021 05:25:56 GMT",
"version": "v2"
}
] | 2021-08-25 | [
[
"Nair",
"Sreejith",
""
],
[
"Suneeta",
"Vardarajan",
""
]
] | We investigate the presence of a black hole black string phase transition in Einstein Gauss Bonnet (EGB) gravity in the large dimension limit. The merger point is the static spacetime connecting the black string phase with the black hole phase. We consider several ranges of the Gauss-Bonnet parameter. We find that ther... |
gr-qc/0610138 | Guihua Tian | Heng-Zhong Fang, Jian-Yang Zhu | Particle Radiation From Gibbons-Maeda Black Hole | 15 pages, no figures | null | null | null | gr-qc | null | This paper investigates the particle radiation from Gibbons-Maeda black hole.
Taking into account the self-gravitation of the particle, we calculate the
tunnelling rate of the massless particle across the horizon, then we promote
the work to the radiation of the charged particle. The calculations prove that
the rate ... | [
{
"created": "Fri, 27 Oct 2006 09:07:23 GMT",
"version": "v1"
},
{
"created": "Thu, 2 Nov 2006 06:47:03 GMT",
"version": "v2"
}
] | 2007-05-23 | [
[
"Fang",
"Heng-Zhong",
""
],
[
"Zhu",
"Jian-Yang",
""
]
] | This paper investigates the particle radiation from Gibbons-Maeda black hole. Taking into account the self-gravitation of the particle, we calculate the tunnelling rate of the massless particle across the horizon, then we promote the work to the radiation of the charged particle. The calculations prove that the rate of... |
1209.3731 | Olivier Sarbach | Eliana Chaverra, N\'estor Ortiz, Olivier Sarbach | Linear perturbations of self-gravitating spherically symmetric
configurations | 31 pages, no figures, to appear in PRD | Physical Review D 87, 044015 (2013) | 10.1103/PhysRevD.87.044015 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present a new covariant, gauge-invariant formalism describing linear
metric perturbation fields on any spherically symmetric background in general
relativity. The advantage of this formalism relies in the fact that it does not
require a decomposition of the perturbations into spherical tensor harmonics.
Furthermor... | [
{
"created": "Mon, 17 Sep 2012 17:47:17 GMT",
"version": "v1"
},
{
"created": "Fri, 11 Jan 2013 00:42:41 GMT",
"version": "v2"
}
] | 2013-04-15 | [
[
"Chaverra",
"Eliana",
""
],
[
"Ortiz",
"Néstor",
""
],
[
"Sarbach",
"Olivier",
""
]
] | We present a new covariant, gauge-invariant formalism describing linear metric perturbation fields on any spherically symmetric background in general relativity. The advantage of this formalism relies in the fact that it does not require a decomposition of the perturbations into spherical tensor harmonics. Furthermore,... |
gr-qc/0505042 | Duncan Brown | LIGO Scientific Collaboration: B. Abbott, et al | Search for Gravitational Waves from Primordial Black Hole Binary
Coalescences in the Galactic Halo | 7 pages, 4 figures, to be submitted to Phys. Rev. D | Phys.Rev.D72:082002,2005 | 10.1103/PhysRevD.72.082002 | LIGO-P040045-04-Z | gr-qc | null | We use data from the second science run of the LIGO gravitational-wave
detectors to search for the gravitational waves from primordial black hole
(PBH) binary coalescence with component masses in the range 0.2--$1.0 M_\odot$.
The analysis requires a signal to be found in the data from both LIGO
observatories, accordi... | [
{
"created": "Tue, 10 May 2005 02:37:19 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"LIGO Scientific Collaboration",
"",
""
],
[
"Abbott",
"B.",
""
]
] | We use data from the second science run of the LIGO gravitational-wave detectors to search for the gravitational waves from primordial black hole (PBH) binary coalescence with component masses in the range 0.2--$1.0 M_\odot$. The analysis requires a signal to be found in the data from both LIGO observatories, according... |
gr-qc/0312071 | Hongwei Yu | Hongwei Yu and Puxun Wu | Quantum inequalities for the free Rarita-Schwinger fields in flat
spacetime | Revtex, 11 pages, to appear in PRD | Phys.Rev. D69 (2004) 064008 | 10.1103/PhysRevD.69.064008 | null | gr-qc hep-th | null | Using the methods developed by Fewster and colleagues, we derive a quantum
inequality for the free massive spin-${3\over 2}$ Rarita-Schwinger fields in
the four dimensional Minkowski spacetime. Our quantum inequality bound for the
Rarita-Schwinger fields is weaker, by a factor of 2, than that for the
spin-${1\over 2}... | [
{
"created": "Tue, 16 Dec 2003 02:36:30 GMT",
"version": "v1"
}
] | 2009-11-10 | [
[
"Yu",
"Hongwei",
""
],
[
"Wu",
"Puxun",
""
]
] | Using the methods developed by Fewster and colleagues, we derive a quantum inequality for the free massive spin-${3\over 2}$ Rarita-Schwinger fields in the four dimensional Minkowski spacetime. Our quantum inequality bound for the Rarita-Schwinger fields is weaker, by a factor of 2, than that for the spin-${1\over 2}$ ... |
1302.2151 | Dawood Kothawala Dr. | T. Padmanabhan, Dawood Kothawala | Lanczos-Lovelock models of gravity | 95 pages; final version published in Physics Reports | Physics Reports 531: 115-171 (2013) | 10.1016/j.physrep.2013.05.007 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Lanczos-Lovelock models of gravity represent a natural and elegant
generalization of Einstein's theory of gravity to higher dimensions. They are
characterized by the fact that the field equations only contain up to second
derivatives of the metric even though the action functional can be a quadratic
or higher degree ... | [
{
"created": "Fri, 8 Feb 2013 21:00:06 GMT",
"version": "v1"
},
{
"created": "Tue, 12 Feb 2013 13:18:33 GMT",
"version": "v2"
},
{
"created": "Mon, 27 May 2013 06:28:25 GMT",
"version": "v3"
},
{
"created": "Thu, 12 Dec 2013 13:31:52 GMT",
"version": "v4"
}
] | 2013-12-13 | [
[
"Padmanabhan",
"T.",
""
],
[
"Kothawala",
"Dawood",
""
]
] | Lanczos-Lovelock models of gravity represent a natural and elegant generalization of Einstein's theory of gravity to higher dimensions. They are characterized by the fact that the field equations only contain up to second derivatives of the metric even though the action functional can be a quadratic or higher degree po... |
gr-qc/0301024 | Kenneth Nordtvedt | Kenneth Nordtvedt | Lunar Laser Ranging - a comprehensive probe of post-Newtonian gravity | 19 pages, 3 figures, PCTex32 v3.4, for proceedings of Villa
Mondragone International School of Gravitation and Cosmology, September 2002 | null | null | null | gr-qc | null | More than 30 years of lunar laser ranging has produced several key tests of
gravitational theory, including confirmation that bodies fall in external
gravity at rates independent of their internal gravitational binding energy,
and that Newton's G is constant to a part in 10^12 per year precision. The
fitting of LLR d... | [
{
"created": "Tue, 7 Jan 2003 18:47:47 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Nordtvedt",
"Kenneth",
""
]
] | More than 30 years of lunar laser ranging has produced several key tests of gravitational theory, including confirmation that bodies fall in external gravity at rates independent of their internal gravitational binding energy, and that Newton's G is constant to a part in 10^12 per year precision. The fitting of LLR dat... |
gr-qc/0112045 | Ivangoe Pestov | I.B. Pestov | On Principle of Universality of Gravitational Interactions | LATeX, 12 pages, no figures and tables | null | null | JINR P2-97-156 | gr-qc | null | In this work, the experiment is discussed on the verification of the
principle of universality of gravitational interactions and some related
problems of gravity theory and physics of elementary particles. The meaning of
this proposal lies in the fact that the self-consistency of General Relativity,
as it turns out, ... | [
{
"created": "Wed, 19 Dec 2001 16:17:41 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Pestov",
"I. B.",
""
]
] | In this work, the experiment is discussed on the verification of the principle of universality of gravitational interactions and some related problems of gravity theory and physics of elementary particles. The meaning of this proposal lies in the fact that the self-consistency of General Relativity, as it turns out, pr... |
2302.05088 | Ritam Mallick | KamalKrishna Nath, Ritam Mallick, Sagnik Chatterjee | Universal Relations For Generic Family Of Neutron Star Equations Of
State | 8 pages, 14 figures | Monthly Notices of the Royal Astronomical Society, Volume 524,
Issue 1, September 2023, Pages 1438 1447 | 10.1093/mnras/stad1967 | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Universal relations are important in testing many theories of physics. In the
case of general relativity, we have the celebrated no-hair theorem for black
holes. Unfortunately, the other compact stars, like neutron stars and white
dwarfs, do not have such universal relation. However, neutron stars (and quark
stars) h... | [
{
"created": "Fri, 10 Feb 2023 07:13:38 GMT",
"version": "v1"
}
] | 2023-10-25 | [
[
"Nath",
"KamalKrishna",
""
],
[
"Mallick",
"Ritam",
""
],
[
"Chatterjee",
"Sagnik",
""
]
] | Universal relations are important in testing many theories of physics. In the case of general relativity, we have the celebrated no-hair theorem for black holes. Unfortunately, the other compact stars, like neutron stars and white dwarfs, do not have such universal relation. However, neutron stars (and quark stars) hav... |
2003.08416 | Gabriel Herczeg | Stephon Alexander, Gabriel Herczeg, Jinglong Liu, Evan McDonough | Chiral Symmetry and the Cosmological Constant | 10 pages, some typographical errors corrected, results unchanged | Phys. Rev. D 102, 083526 (2020) | 10.1103/PhysRevD.102.083526 | Vol. 102, Iss. 8 -- 15 October 2020 | gr-qc astro-ph.CO hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this work we provide a link between a nearly vanishing cosmological
constant and chiral symmetry. This is accomplished with a modification of
General Relativity coupled to a topological field theory, namely BF theory by
introducing fermions charged under the BF theory gauge group. We find that the
cosmological con... | [
{
"created": "Wed, 18 Mar 2020 18:07:09 GMT",
"version": "v1"
},
{
"created": "Thu, 9 Apr 2020 18:45:42 GMT",
"version": "v2"
},
{
"created": "Mon, 3 May 2021 20:09:25 GMT",
"version": "v3"
}
] | 2021-05-05 | [
[
"Alexander",
"Stephon",
""
],
[
"Herczeg",
"Gabriel",
""
],
[
"Liu",
"Jinglong",
""
],
[
"McDonough",
"Evan",
""
]
] | In this work we provide a link between a nearly vanishing cosmological constant and chiral symmetry. This is accomplished with a modification of General Relativity coupled to a topological field theory, namely BF theory by introducing fermions charged under the BF theory gauge group. We find that the cosmological const... |
gr-qc/9502042 | James H. Horne | Kevin C.K. Chan, James H. Horne, and Robert B. Mann | Charged Dilaton Black Holes with Unusual Asymptotics | 24 pages, harvmac.tex, no figures | Nucl.Phys.B447:441-464,1995 | 10.1016/0550-3213(95)00205-7 | null | gr-qc | null | We present a new class of black hole solutions in Einstein-Maxwell-dilaton
gravity in $n \ge 4$ dimensions. These solutions have regular horizons and a
singularity only at the origin. Their asymptotic behavior is neither
asymptotically flat nor (anti-) de Sitter. Similar solutions exist for certain
Liouville-type pot... | [
{
"created": "Mon, 27 Feb 1995 15:24:09 GMT",
"version": "v1"
}
] | 2016-08-31 | [
[
"Chan",
"Kevin C. K.",
""
],
[
"Horne",
"James H.",
""
],
[
"Mann",
"Robert B.",
""
]
] | We present a new class of black hole solutions in Einstein-Maxwell-dilaton gravity in $n \ge 4$ dimensions. These solutions have regular horizons and a singularity only at the origin. Their asymptotic behavior is neither asymptotically flat nor (anti-) de Sitter. Similar solutions exist for certain Liouville-type poten... |
0904.1867 | Wade Naylor | H.T. Cho (Tamkang U.), A.S. Cornell (U. Witwatersrand), Jason Doukas
(Melbourne U.), Wade Naylor (Ritsumeikan U.) | Asymptotic iteration method for spheroidal harmonics of
higher-dimensional Kerr-(A)dS black holes | 7 pages, 6 tables, LaTeX; typos corrected and reference added; table
clarity improved, 2 figures and more references added (now 9 pages) | Phys.Rev.D80:064022,2009 | 10.1103/PhysRevD.80.064022 | null | gr-qc hep-th math.NA | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this work we calculate the angular eigenvalues of the $(n+4)$-dimensional
{\it simply} rotating Kerr-(A)dS spheroidal harmonics using the Asymptotic
Iteration Method (AIM). We make some comparisons between this method and that
of the Continued Fraction Method (CFM) and use the latter to check our results.
We also ... | [
{
"created": "Sun, 12 Apr 2009 15:04:19 GMT",
"version": "v1"
},
{
"created": "Sat, 18 Apr 2009 14:48:22 GMT",
"version": "v2"
},
{
"created": "Thu, 30 Apr 2009 08:45:11 GMT",
"version": "v3"
},
{
"created": "Mon, 31 Aug 2009 14:30:53 GMT",
"version": "v4"
}
] | 2011-04-11 | [
[
"Cho",
"H. T.",
"",
"Tamkang U."
],
[
"Cornell",
"A. S.",
"",
"U. Witwatersrand"
],
[
"Doukas",
"Jason",
"",
"Melbourne U."
],
[
"Naylor",
"Wade",
"",
"Ritsumeikan U."
]
] | In this work we calculate the angular eigenvalues of the $(n+4)$-dimensional {\it simply} rotating Kerr-(A)dS spheroidal harmonics using the Asymptotic Iteration Method (AIM). We make some comparisons between this method and that of the Continued Fraction Method (CFM) and use the latter to check our results. We also pr... |
1709.06712 | Masaru Siino | Masaru Siino | Dynamical deformation of 2+1 dimensional double torus universe | 19pages, 9 figures | null | null | null | gr-qc hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In (2+1)-dimensional pure gravity with cosmological constant, the dynamics of
double torus universe with pinching parameter is investigated. Each mode of
affine stretching deformation is illustrated in the context of horizontal
foliation along the holomorphic quadratic differential. The formulation of the
Einstein Hi... | [
{
"created": "Wed, 20 Sep 2017 03:36:20 GMT",
"version": "v1"
}
] | 2017-09-21 | [
[
"Siino",
"Masaru",
""
]
] | In (2+1)-dimensional pure gravity with cosmological constant, the dynamics of double torus universe with pinching parameter is investigated. Each mode of affine stretching deformation is illustrated in the context of horizontal foliation along the holomorphic quadratic differential. The formulation of the Einstein Hilb... |
1509.04983 | Joao Paulo Manoel Pitelli | J. P. M. Pitelli | Cosmology in $(1+1)$-dimensional Ho\v{r}ava-Lifshitz theory of gravity | 5 pages. To appear in Phys Rev D | Phys. Rev. D, 92, 084012 (2015) | 10.1103/PhysRevD.92.084012 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The $(1+1)$-dimensional Friedmann-Robertson-Walker (FRW) universe filled with
a perfect fluid with equation of state $p=\omega \rho$ is analyzed through the
view of Ho\v rava-Lifshitz (HL) theory of gravity. In this theory, the
anisotropic scaling of space and time breaks Lorentz invariance of General
Relativity (GR)... | [
{
"created": "Wed, 16 Sep 2015 17:50:19 GMT",
"version": "v1"
}
] | 2016-05-09 | [
[
"Pitelli",
"J. P. M.",
""
]
] | The $(1+1)$-dimensional Friedmann-Robertson-Walker (FRW) universe filled with a perfect fluid with equation of state $p=\omega \rho$ is analyzed through the view of Ho\v rava-Lifshitz (HL) theory of gravity. In this theory, the anisotropic scaling of space and time breaks Lorentz invariance of General Relativity (GR) i... |
0712.3787 | Mark Hannam | Mark Hannam, Sascha Husa, Bernd Br\"ugmann, Achamveedu Gopakumar | Comparison between numerical-relativity and post-Newtonian waveforms
from spinning binaries: the orbital hang-up case | 10 pages, 6 figures. Matches version published in PRD | Phys.Rev.D78:104007,2008 | 10.1103/PhysRevD.78.104007 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We compare results from numerical simulations of spinning binaries in the
"orbital hangup" case, where the binary completes at least nine orbits before
merger, with post-Newtonian results using the approximants TaylorT1, T4 and Et.
We find that, over the ten cycles before the gravitational-wave frequency
reaches $M\o... | [
{
"created": "Fri, 21 Dec 2007 20:03:04 GMT",
"version": "v1"
},
{
"created": "Sun, 23 Dec 2007 19:25:32 GMT",
"version": "v2"
},
{
"created": "Wed, 26 Nov 2008 09:59:23 GMT",
"version": "v3"
}
] | 2008-11-26 | [
[
"Hannam",
"Mark",
""
],
[
"Husa",
"Sascha",
""
],
[
"Brügmann",
"Bernd",
""
],
[
"Gopakumar",
"Achamveedu",
""
]
] | We compare results from numerical simulations of spinning binaries in the "orbital hangup" case, where the binary completes at least nine orbits before merger, with post-Newtonian results using the approximants TaylorT1, T4 and Et. We find that, over the ten cycles before the gravitational-wave frequency reaches $M\ome... |
2405.12188 | Matthew Maitra | Matthew Maitra, Jeroen Tromp | Cosserat elasticity as the weak-field limit of Einstein--Cartan
relativity | null | null | 10.1103/PhysRevD.109.104052 | null | gr-qc physics.geo-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The weak-field limit of Einstein--Cartan (EC) relativity is studied. The
equations of EC theory are rewritten such that they formally resemble those of
Einstein General Relativity (EGR); this allows ideas from post-Newtonian theory
to be imported without essential change. The equations of motion are then
written both... | [
{
"created": "Mon, 20 May 2024 17:20:56 GMT",
"version": "v1"
}
] | 2024-05-21 | [
[
"Maitra",
"Matthew",
""
],
[
"Tromp",
"Jeroen",
""
]
] | The weak-field limit of Einstein--Cartan (EC) relativity is studied. The equations of EC theory are rewritten such that they formally resemble those of Einstein General Relativity (EGR); this allows ideas from post-Newtonian theory to be imported without essential change. The equations of motion are then written both a... |
gr-qc/0701001 | Hyun Kyu Lee | V. Frolov (1), K. Kim (2), H.K. Lee (1 and 2) ((1) University of
Alberta, (2) Hanyang University) | Spectral Broadening of Radiation from Relativistic Collapsing Objects | 4 pages, 4 figures, Typos are corrected and substantial parts of main
text are rephrased for more better presentation. 1 reference is added | Phys.Rev.D75:087501,2007 | 10.1103/PhysRevD.75.087501 | Alberta-Thy-02-07 | gr-qc astro-ph | null | We study light curves and the spectral broadening of the radiation emitted
during the finite interval of time by a surface of a collapsing object. We
study a simplified model of monochromatic radiations from a spherical surface
which is assumed to be falling freely. We discuss the possible way how to infer
the physic... | [
{
"created": "Sat, 30 Dec 2006 00:04:08 GMT",
"version": "v1"
},
{
"created": "Tue, 13 Feb 2007 01:46:41 GMT",
"version": "v2"
}
] | 2008-11-26 | [
[
"Frolov",
"V.",
"",
"1 and 2"
],
[
"Kim",
"K.",
"",
"1 and 2"
],
[
"Lee",
"H. K.",
"",
"1 and 2"
]
] | We study light curves and the spectral broadening of the radiation emitted during the finite interval of time by a surface of a collapsing object. We study a simplified model of monochromatic radiations from a spherical surface which is assumed to be falling freely. We discuss the possible way how to infer the physical... |
1307.1481 | \.Ibrahim Semiz | Koray D\"uzta\c{s} and \.Ibrahim Semiz | Cosmic Censorship, Black Holes and Integer-spin Test Fields | 4 pages, no figures. In this version, Sections II and III are
rewritten for a better derivation of the conclusion, which remains unchanged.
Now approximately matches published version [has more detail in references] | Phys. Rev. D 88, 064043 (2013) | 10.1103/PhysRevD.88.064043 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | It has been argued that, starting with a slightly sub-extremal Kerr black
hole instead of an extremal one, it is possible to overspin a black hole past
the extremal limit and turn it into a naked singularity by sending test bodies,
if one neglects radiative and self-force effects. In this work we show that (i)
an ext... | [
{
"created": "Thu, 4 Jul 2013 20:15:53 GMT",
"version": "v1"
},
{
"created": "Sat, 12 Oct 2013 15:17:05 GMT",
"version": "v2"
}
] | 2015-06-16 | [
[
"Düztaş",
"Koray",
""
],
[
"Semiz",
"İbrahim",
""
]
] | It has been argued that, starting with a slightly sub-extremal Kerr black hole instead of an extremal one, it is possible to overspin a black hole past the extremal limit and turn it into a naked singularity by sending test bodies, if one neglects radiative and self-force effects. In this work we show that (i) an extre... |
gr-qc/0003083 | Alberto Saa | Alberto Saa | Chaos around the superposition of a monopole and a thick disk | 11 pages, 4 figures | Phys.Lett. A269 (2000) 204-208 | 10.1016/S0375-9601(00)00256-5 | null | gr-qc | null | We extend recent investigations on the integrability of oblique orbits of
test particles under the gravitational field corresponding to the superposition
of an infinitesimally thin disk and a monopole to the more realistic case, for
astrophysical purposes, of a thick disk. Exhaustive numerical analyses were
performed... | [
{
"created": "Tue, 21 Mar 2000 17:38:24 GMT",
"version": "v1"
}
] | 2009-10-31 | [
[
"Saa",
"Alberto",
""
]
] | We extend recent investigations on the integrability of oblique orbits of test particles under the gravitational field corresponding to the superposition of an infinitesimally thin disk and a monopole to the more realistic case, for astrophysical purposes, of a thick disk. Exhaustive numerical analyses were performed a... |
0906.5108 | Plamen Fiziev | Plamen P. Fiziev | Teukolsky-Starobinsky Identities - a Novel Derivation and
Generalizations | 8 pages, LaTeX file, no figures, final version | PHYSICAL REVIEW D 80, 124001 (2009) | 10.1103/PhysRevD.80.124001 | SU-TH-01-06-2009 | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present a novel derivation of the Teukolsky-Starobinsky identities, based
on properties of the confluent Heun functions. These functions define
analytically all exact solutions to the Teukolsky master equation, as well as
to the Regge-Wheeler and Zerilli ones. The class of solutions, subject to
Teukolsky-Starobins... | [
{
"created": "Sun, 28 Jun 2009 05:31:48 GMT",
"version": "v1"
},
{
"created": "Wed, 26 Aug 2009 15:46:45 GMT",
"version": "v2"
},
{
"created": "Mon, 12 Oct 2009 05:50:38 GMT",
"version": "v3"
},
{
"created": "Wed, 2 Dec 2009 17:12:48 GMT",
"version": "v4"
}
] | 2013-05-29 | [
[
"Fiziev",
"Plamen P.",
""
]
] | We present a novel derivation of the Teukolsky-Starobinsky identities, based on properties of the confluent Heun functions. These functions define analytically all exact solutions to the Teukolsky master equation, as well as to the Regge-Wheeler and Zerilli ones. The class of solutions, subject to Teukolsky-Starobinsky... |
gr-qc/0012054 | Denis Puy | N. Straumann (Institute of Theoretical Physics, University of Zurich,
Switzerland) | On Pauli's invention of non-abelian Kaluza-Klein Theory in 1953 | 4 pages, Ninth Marcel Grossmann Proceedings | null | null | null | gr-qc hep-th | null | There are documents which show that Wolfgang Pauli developed in 1953 the
first consistent generalization of the five-dimensional theory of Kaluza,
Klein, Fock and others to a higher dimensional internal space. Because he saw
no way to give masses to the gauge bosons, he refrained from publishing his
results formally.... | [
{
"created": "Fri, 15 Dec 2000 14:49:56 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Straumann",
"N.",
"",
"Institute of Theoretical Physics, University of Zurich,\n Switzerland"
]
] | There are documents which show that Wolfgang Pauli developed in 1953 the first consistent generalization of the five-dimensional theory of Kaluza, Klein, Fock and others to a higher dimensional internal space. Because he saw no way to give masses to the gauge bosons, he refrained from publishing his results formally. |
gr-qc/0502003 | Jose Natario | Joao Costa and Jose Natario | Homogeneous cosmologies from the quasi-Maxwell formalism | 15 pages, references added | J.Math.Phys. 46 (2005) 082501 | 10.1063/1.2009587 | null | gr-qc | null | We show how to use the quasi-Maxwell formalism to obtain solutions of
Einstein's field equations corresponding to homogeneous cosmologies - namely
Einstein's universe, Godel's universe and the Ozsvath-Farnsworth-Kerr class I
solutions - written in frames for which the associated observers are
stationary.
| [
{
"created": "Tue, 1 Feb 2005 16:22:36 GMT",
"version": "v1"
},
{
"created": "Wed, 2 Feb 2005 10:44:52 GMT",
"version": "v2"
}
] | 2009-11-11 | [
[
"Costa",
"Joao",
""
],
[
"Natario",
"Jose",
""
]
] | We show how to use the quasi-Maxwell formalism to obtain solutions of Einstein's field equations corresponding to homogeneous cosmologies - namely Einstein's universe, Godel's universe and the Ozsvath-Farnsworth-Kerr class I solutions - written in frames for which the associated observers are stationary. |
1504.05889 | Chris Messenger | C. Messenger, H. J. Bulten, S. G. Crowder, V. Dergachev, D. K.
Galloway, E. Goetz, R. J. G. Jonker, P. D. Lasky, G. D. Meadors, A. Melatos,
S. Premachandra, K. Riles, L. Sammut, E. H. Thrane, J. T. Whelan, and Y.
Zhang | Gravitational waves from Sco X-1: A comparison of search methods and
prospects for detection with advanced detectors | 33 pages, 11 figures | Phys. Rev. D 92, 023006 (2015) | 10.1103/PhysRevD.92.023006 | LIGO-P1400217-v3 | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The low-mass X-ray binary Scorpius X-1 (Sco X-1) is potentially the most
luminous source of continuous gravitational-wave radiation for interferometers
such as LIGO and Virgo. For low-mass X-ray binaries this radiation would be
sustained by active accretion of matter from its binary companion. With the
Advanced Detec... | [
{
"created": "Wed, 22 Apr 2015 17:08:07 GMT",
"version": "v1"
}
] | 2015-07-15 | [
[
"Messenger",
"C.",
""
],
[
"Bulten",
"H. J.",
""
],
[
"Crowder",
"S. G.",
""
],
[
"Dergachev",
"V.",
""
],
[
"Galloway",
"D. K.",
""
],
[
"Goetz",
"E.",
""
],
[
"Jonker",
"R. J. G.",
""
],
[
"Lasky"... | The low-mass X-ray binary Scorpius X-1 (Sco X-1) is potentially the most luminous source of continuous gravitational-wave radiation for interferometers such as LIGO and Virgo. For low-mass X-ray binaries this radiation would be sustained by active accretion of matter from its binary companion. With the Advanced Detecto... |
1005.3404 | Kiyoshi Shiraishi | Nahomi Kan (Yamaguchi Junior College) and Kiyoshi Shiraishi (Yamaguchi
University) | Interparticle Potential up to Next-to-leading Order for Gravitational,
Electrical, and Dilatonic Forces | 19 pages, 19 figures, RevTeX4.1. Revised version, Title changed | General Relativity and Gravitation, Volume 44, Number 4, (2012)
887-903 | 10.1007/s10714-011-1314-3 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Long-range forces up to next-to-leading order are computed in the framework
of the Einstein-Maxwell-dilaton system by means of a semiclassical approach to
gravity. As has been recently shown, this approach is effective if one of the
masses under consideration is significantly greater than all the energies
involved in... | [
{
"created": "Wed, 19 May 2010 10:28:57 GMT",
"version": "v1"
},
{
"created": "Tue, 8 Jun 2010 01:27:35 GMT",
"version": "v2"
},
{
"created": "Mon, 5 Dec 2011 05:18:05 GMT",
"version": "v3"
}
] | 2012-03-30 | [
[
"Kan",
"Nahomi",
"",
"Yamaguchi Junior College"
],
[
"Shiraishi",
"Kiyoshi",
"",
"Yamaguchi\n University"
]
] | Long-range forces up to next-to-leading order are computed in the framework of the Einstein-Maxwell-dilaton system by means of a semiclassical approach to gravity. As has been recently shown, this approach is effective if one of the masses under consideration is significantly greater than all the energies involved in t... |
1309.3403 | Lisa Glaser | Lisa Glaser and Sumati Surya | Towards a Definition of Locality in a Manifoldlike Causal Set | 35 pages, 17 figures | Phys. Rev. D 88, 124026 (2013) | 10.1103/PhysRevD.88.124026 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | It is a common misconception that spacetime discreteness necessarily implies
a violation of local Lorentz invariance. In fact, in the causal set approach to
quantum gravity, Lorentz invariance follows from the specific implementation of
the discreteness hypothesis. However, this comes at the cost of locality. In
part... | [
{
"created": "Fri, 13 Sep 2013 09:06:37 GMT",
"version": "v1"
},
{
"created": "Mon, 7 Apr 2014 13:09:14 GMT",
"version": "v2"
}
] | 2014-04-08 | [
[
"Glaser",
"Lisa",
""
],
[
"Surya",
"Sumati",
""
]
] | It is a common misconception that spacetime discreteness necessarily implies a violation of local Lorentz invariance. In fact, in the causal set approach to quantum gravity, Lorentz invariance follows from the specific implementation of the discreteness hypothesis. However, this comes at the cost of locality. In partic... |
2404.04013 | Sayak Datta | Sayak Datta, Richard Brito, Scott A. Hughes, Talya Klinger, Paolo Pani | Tidal heating as a discriminator for horizons in equatorial eccentric
extreme mass ratio inspirals | null | null | null | null | gr-qc astro-ph.HE | http://creativecommons.org/licenses/by/4.0/ | Tidal heating in a binary black hole system is driven by the absorption of
energy and angular momentum by the black hole's horizon. Previous works have
shown that this phenomenon becomes particularly significant during the late
stages of an extreme mass ratio inspiral (EMRI) into a rapidly spinning massive
black hole... | [
{
"created": "Fri, 5 Apr 2024 10:40:20 GMT",
"version": "v1"
},
{
"created": "Sat, 27 Apr 2024 08:22:18 GMT",
"version": "v2"
},
{
"created": "Wed, 26 Jun 2024 07:28:14 GMT",
"version": "v3"
}
] | 2024-06-27 | [
[
"Datta",
"Sayak",
""
],
[
"Brito",
"Richard",
""
],
[
"Hughes",
"Scott A.",
""
],
[
"Klinger",
"Talya",
""
],
[
"Pani",
"Paolo",
""
]
] | Tidal heating in a binary black hole system is driven by the absorption of energy and angular momentum by the black hole's horizon. Previous works have shown that this phenomenon becomes particularly significant during the late stages of an extreme mass ratio inspiral (EMRI) into a rapidly spinning massive black hole, ... |
1111.4824 | Frederic P. Schuller | Frederic P. Schuller | All spacetimes beyond Einstein (Obergurgl Lectures) | 44 pages, 7 figures, Lectures held for the Elitestudiengang Physik
Erlangen and Regensburg at Obergurgl/Austria, September 2011 | null | null | null | gr-qc hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Which geometries on a smooth manifold (apart from Lorentzian metrics) can
serve as a spacetime structure? This question is comprehensively addressed from
first principles in eight lectures, exploring the kinematics and gravitational
dynamics of all tensorial geometries on a smooth manifold that can carry
predictive m... | [
{
"created": "Mon, 21 Nov 2011 10:49:34 GMT",
"version": "v1"
}
] | 2011-11-22 | [
[
"Schuller",
"Frederic P.",
""
]
] | Which geometries on a smooth manifold (apart from Lorentzian metrics) can serve as a spacetime structure? This question is comprehensively addressed from first principles in eight lectures, exploring the kinematics and gravitational dynamics of all tensorial geometries on a smooth manifold that can carry predictive mat... |
1405.7922 | Ramon Torres | R. Torres and F. Fayos | Singularity free gravitational collapse in an effective dynamical
quantum spacetime | 19 pages, 5 figures | Phys. Lett. B 733 (2014) 169-175 | 10.1016/j.physletb.2014.04.038 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We model the gravitational collapse of heavy massive shells including its
main quantum corrections. Among these corrections, quantum improvements coming
from Quantum Einstein Gravity are taken into account, which provides us with an
effective quantum spacetime. Likewise, we consider dynamical Hawking radiation
by mod... | [
{
"created": "Fri, 30 May 2014 17:32:00 GMT",
"version": "v1"
}
] | 2015-06-19 | [
[
"Torres",
"R.",
""
],
[
"Fayos",
"F.",
""
]
] | We model the gravitational collapse of heavy massive shells including its main quantum corrections. Among these corrections, quantum improvements coming from Quantum Einstein Gravity are taken into account, which provides us with an effective quantum spacetime. Likewise, we consider dynamical Hawking radiation by model... |
1406.0343 | Shaon Ghosh | Shaon Ghosh and Gijs Nelemans | Localizing gravitational wave sources with optical telescopes and
combining electromagnetic and gravitational wave data | 8 pages, 8 figures, Proceeding for Sant Cugat Forum for Astrophysics | null | 10.1007/978-3-319-10488-1_5 | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Neutron star binaries, which are among the most promising sources for the
direct detection of gravitational waves (GW) by ground based detectors, are
also potential electromagnetic (EM) emitters. Gravitational waves will provide
a new window to observe these events and hopefully give us glimpses of new
astrophysics. ... | [
{
"created": "Mon, 2 Jun 2014 12:40:07 GMT",
"version": "v1"
}
] | 2015-06-19 | [
[
"Ghosh",
"Shaon",
""
],
[
"Nelemans",
"Gijs",
""
]
] | Neutron star binaries, which are among the most promising sources for the direct detection of gravitational waves (GW) by ground based detectors, are also potential electromagnetic (EM) emitters. Gravitational waves will provide a new window to observe these events and hopefully give us glimpses of new astrophysics. In... |
2204.12567 | Rafael Hern\'andez-Jim\'enez | Alejandro Casallas-Lagos, Claudia Moreno, Javier M. Antelis, Rafael
Hern\'andez-Jim\'enez | A search for distinctive footprints of compact binary coalescence within
alternatives theories of gravity | 19 pages, 7 figures | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this review we examine the amplitude intensity associated to tensorial and
non-tensorial polarization modes generated by binary systems at their inspiral
stage, within the alternative theories of gravity of Brans Dicke, Rosen, and
Lightman Lee. This study is performed without making an explicit use of the
Transver... | [
{
"created": "Tue, 26 Apr 2022 20:02:50 GMT",
"version": "v1"
},
{
"created": "Tue, 7 Jun 2022 02:25:56 GMT",
"version": "v2"
},
{
"created": "Mon, 2 Jan 2023 21:03:10 GMT",
"version": "v3"
},
{
"created": "Wed, 29 Mar 2023 19:31:44 GMT",
"version": "v4"
}
] | 2023-03-31 | [
[
"Casallas-Lagos",
"Alejandro",
""
],
[
"Moreno",
"Claudia",
""
],
[
"Antelis",
"Javier M.",
""
],
[
"Hernández-Jiménez",
"Rafael",
""
]
] | In this review we examine the amplitude intensity associated to tensorial and non-tensorial polarization modes generated by binary systems at their inspiral stage, within the alternative theories of gravity of Brans Dicke, Rosen, and Lightman Lee. This study is performed without making an explicit use of the Transverse... |
1012.2872 | Sean McWilliams | Sean T. McWilliams | The Status of Black-Hole Binary Merger Simulations with Numerical
Relativity | Invited review for NRDA/CAPRA 2010, CQG special issue - 7 pages, 1
figure, 1 table | null | 10.1088/0264-9381/28/13/134001 | null | gr-qc astro-ph.CO astro-ph.GA astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The advent of long-term stability in numerical relativity has yielded a
windfall of answers to long-standing questions regarding the dynamics of
space-time, matter, and electromagnetic fields in the strong-field regime of
black-hole binary mergers. In this review, we will briefly summarize the
methodology currently a... | [
{
"created": "Mon, 13 Dec 2010 21:03:06 GMT",
"version": "v1"
}
] | 2015-05-20 | [
[
"McWilliams",
"Sean T.",
""
]
] | The advent of long-term stability in numerical relativity has yielded a windfall of answers to long-standing questions regarding the dynamics of space-time, matter, and electromagnetic fields in the strong-field regime of black-hole binary mergers. In this review, we will briefly summarize the methodology currently app... |
1411.3552 | Roldao da Rocha | Alex E. Bernardini, R. T. Cavalcanti, Roldao da Rocha | Spherically Symmetric Thick Branes Cosmological Evolution | 17 pages, Gen. Relat. Grav. (in press) | Gen. Relat. Grav. 47 (2014) 1840 | 10.1007/s10714-014-1840-x | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Spherically symmetric time-dependent solutions for the 5D system of a scalar
field canonically coupled to gravity are obtained and identified as an
extension of recent results obtained by Ahmed, Grzadkowskia and Wudkab. The
corresponding cosmology of models with regularized branes generated by such a
5D scalar field ... | [
{
"created": "Thu, 13 Nov 2014 14:25:40 GMT",
"version": "v1"
}
] | 2014-12-31 | [
[
"Bernardini",
"Alex E.",
""
],
[
"Cavalcanti",
"R. T.",
""
],
[
"da Rocha",
"Roldao",
""
]
] | Spherically symmetric time-dependent solutions for the 5D system of a scalar field canonically coupled to gravity are obtained and identified as an extension of recent results obtained by Ahmed, Grzadkowskia and Wudkab. The corresponding cosmology of models with regularized branes generated by such a 5D scalar field sc... |
gr-qc/0703047 | Farook Rahaman | F.Rahaman, S Chakraborty and J.Bera | Inhomogeneous Cosmological Model in Lyra Geometry | 7 pages, published in Int.J.Mod.Phys.D11, 1501 (2002) | Int.J.Mod.Phys.D11:1501,2002 | 10.1142/S0218271802001937 | null | gr-qc | null | Exact solutions are obtained for an inhomogeneous cosmological model in
normal gauge for Lyra geometry. Some properties of the model have also been
discussed.
| [
{
"created": "Wed, 7 Mar 2007 07:52:01 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Rahaman",
"F.",
""
],
[
"Chakraborty",
"S",
""
],
[
"Bera",
"J.",
""
]
] | Exact solutions are obtained for an inhomogeneous cosmological model in normal gauge for Lyra geometry. Some properties of the model have also been discussed. |
1809.05670 | J. W. van Holten | J.W. van Holten | Gravitational waves from generalized newtonian sources | 30 pages, 1 figure; update includes new appendix on gauge fixing and
improved figure; v3: the last expression in equation (76) is replaced by a
simpler and more useful one | Fortschritte der Physik (2019) 1800083 | 10.1002/prop.201800083 | null | gr-qc astro-ph.SR | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | I review the elementary theory of gravitational waves on a Minkowski
background and the quadrupole approximation. The modified conservation laws for
energy and momentum keeping track of the gravitational-wave flux are presented.
The theory is applied to two-body systems in bound and scattering states
subject to newto... | [
{
"created": "Sat, 15 Sep 2018 08:22:05 GMT",
"version": "v1"
},
{
"created": "Fri, 16 Nov 2018 15:53:57 GMT",
"version": "v2"
},
{
"created": "Sun, 10 Feb 2019 14:23:06 GMT",
"version": "v3"
}
] | 2019-02-12 | [
[
"van Holten",
"J. W.",
""
]
] | I review the elementary theory of gravitational waves on a Minkowski background and the quadrupole approximation. The modified conservation laws for energy and momentum keeping track of the gravitational-wave flux are presented. The theory is applied to two-body systems in bound and scattering states subject to newtoni... |
gr-qc/0605142 | Richard T. Hammond | Richard T Hammond | Geometrical Origin of the Cosmological Term | 7 pages | Int.J.Mod.Phys.D15:2159-2164,2006 | 10.1142/S0218271806009789 | null | gr-qc | null | Nonmetricity derived from a scalar field is shown to exist as a cosmic field,
without direct coupling to matter. It leads to a variable cosmological term, a
term that dominates the expansion in the early universe but dies away at later
time.
| [
{
"created": "Sat, 27 May 2006 20:53:16 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Hammond",
"Richard T",
""
]
] | Nonmetricity derived from a scalar field is shown to exist as a cosmic field, without direct coupling to matter. It leads to a variable cosmological term, a term that dominates the expansion in the early universe but dies away at later time. |
1801.04676 | Mingzhe Li | Yunlong Zheng, Yicen Mou, Haomin Rao, Mingzhe Li | Conformal invariant cosmological perturbations via the covariant
approach: multicomponent universe | 10 pages, the version to appear in Chinese Physics C | null | 10.1088/1674-1137/42/3/035102 | USTC-ICTS-17-14 | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In recent years there has been a lot of interest in discussing frame
dependences/independences of the cosmological perturbations under the conformal
transformations. This problem has previously been investigated in terms of the
covariant approach for a single component universe, and it was found that the
covariant ap... | [
{
"created": "Mon, 15 Jan 2018 06:41:13 GMT",
"version": "v1"
},
{
"created": "Wed, 17 Jan 2018 09:02:45 GMT",
"version": "v2"
}
] | 2018-03-14 | [
[
"Zheng",
"Yunlong",
""
],
[
"Mou",
"Yicen",
""
],
[
"Rao",
"Haomin",
""
],
[
"Li",
"Mingzhe",
""
]
] | In recent years there has been a lot of interest in discussing frame dependences/independences of the cosmological perturbations under the conformal transformations. This problem has previously been investigated in terms of the covariant approach for a single component universe, and it was found that the covariant appr... |
1905.08657 | David Garfinkle | Lydia Bieri, David Garfinkle and Shing-Tung Yau | A No-Boundary Method for Numerical Relativity | null | null | 10.1088/1361-6382/ab5e99 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We propose a method for numerical relativity in which the spatial grid is
finite and no outer boundary condition is needed. As a "proof of concept" we
implement this method for the case of a self-gravitating, spherically symmetric
scalar field.
| [
{
"created": "Tue, 21 May 2019 14:05:43 GMT",
"version": "v1"
}
] | 2020-02-12 | [
[
"Bieri",
"Lydia",
""
],
[
"Garfinkle",
"David",
""
],
[
"Yau",
"Shing-Tung",
""
]
] | We propose a method for numerical relativity in which the spatial grid is finite and no outer boundary condition is needed. As a "proof of concept" we implement this method for the case of a self-gravitating, spherically symmetric scalar field. |
gr-qc/0311084 | Jean-Paul Mbelek | J. P. Mbelek | 5D gravity and the discrepant G measurements | 13 pages, to be published in: Proceedings of the 18th Course of the
School on Cosmology and Gravitation: The gravitational Constant. Generalized
gravitational theories and experiments (30 April-10 May 2003, Erice). Ed. by
G. T. Gillies, V. N. Melnikov and V. de Sabbata, (Kluwer), 13pp. (in print)
(2003) | null | 10.1007/978-1-4020-2242-5_11 | null | gr-qc | null | It is shown that 5D Kaluza-Klein theory stabilized by an external bulk scalar
field may solve the discrepant laboratory G measurements. This is achieved by
an effective coupling between gravitation and the geomagnetic field.
Experimental considerations are also addressed.
| [
{
"created": "Wed, 26 Nov 2003 15:50:48 GMT",
"version": "v1"
}
] | 2015-06-25 | [
[
"Mbelek",
"J. P.",
""
]
] | It is shown that 5D Kaluza-Klein theory stabilized by an external bulk scalar field may solve the discrepant laboratory G measurements. This is achieved by an effective coupling between gravitation and the geomagnetic field. Experimental considerations are also addressed. |
1302.4831 | Kazuharu Bamba | Kazuharu Bamba, Shin'ichi Nojiri and Sergei D. Odintsov | Modified gravity: walk through accelerating cosmology | 16 pages, no figure, to appear in: Proceedings of the 7th
Mathematical Physics Meeting: Summer School and Conference on Modern
Mathematical Physics (Sept. 9--19, 2012, Belgrade, Serbia). Editors B.
Dragovich and Z. Rakic. Published by Institute of Physics, Belgrade 2013,
Serbia | null | null | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We review the accelerating (mainly, dark energy) cosmologies in modified
gravity. Special attention is paid to cosmologies leading to finite-time future
singularities in $F(R)$, $F(G)$ and $\mathcal{F}(R,G)$ modified gravities. The
removal of the finite-time future singularities via addition of $R^2$-term
which simul... | [
{
"created": "Wed, 20 Feb 2013 08:28:29 GMT",
"version": "v1"
}
] | 2013-02-21 | [
[
"Bamba",
"Kazuharu",
""
],
[
"Nojiri",
"Shin'ichi",
""
],
[
"Odintsov",
"Sergei D.",
""
]
] | We review the accelerating (mainly, dark energy) cosmologies in modified gravity. Special attention is paid to cosmologies leading to finite-time future singularities in $F(R)$, $F(G)$ and $\mathcal{F}(R,G)$ modified gravities. The removal of the finite-time future singularities via addition of $R^2$-term which simulta... |
gr-qc/0604085 | Thomas Marlow | Thomas Marlow | Weak Values and Relational Generalisations | 11 pages, contains a reworking of an argument in gr-qc/0603015 | null | null | null | gr-qc | null | We justify generalisations of weak values from a tentatively relational
perspective by deriving them from a generalisation of Bayes' rule. We also
argue that these generalisations have implications of quantum nonlocality and
may form a novel approach to quantum gravity and cosmology.
| [
{
"created": "Thu, 20 Apr 2006 09:24:25 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Marlow",
"Thomas",
""
]
] | We justify generalisations of weak values from a tentatively relational perspective by deriving them from a generalisation of Bayes' rule. We also argue that these generalisations have implications of quantum nonlocality and may form a novel approach to quantum gravity and cosmology. |
2003.10831 | Z. Yousaf | Z. Yousaf, M. Z. Bhatti, T. Naseer | New Definition of Complexity Factor in $f(R,T,R_{\mu\nu}T^{\mu\nu})$
Gravity | 26 pages | Phys. Dark Universe 28, 100535 (2020) | 10.1016/j.dark.2020.100535 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | This paper is devoted to present new definition of complexity factor for
static cylindrically symmetric matter configurations in
$f(R,T,R_{\mu\nu}T^{\mu\nu})$ gravity. For this purpose, we have considered
irrotational static cylindrical spacetime coupled with a locally anisotropic
relativistic fluid. After formulatin... | [
{
"created": "Sat, 21 Mar 2020 09:45:49 GMT",
"version": "v1"
}
] | 2020-03-30 | [
[
"Yousaf",
"Z.",
""
],
[
"Bhatti",
"M. Z.",
""
],
[
"Naseer",
"T.",
""
]
] | This paper is devoted to present new definition of complexity factor for static cylindrically symmetric matter configurations in $f(R,T,R_{\mu\nu}T^{\mu\nu})$ gravity. For this purpose, we have considered irrotational static cylindrical spacetime coupled with a locally anisotropic relativistic fluid. After formulating ... |
gr-qc/0609085 | Sergiu Vacaru I. | Sergiu I. Vacaru and Mihai Visinescu | Nonholonomic Ricci Flows and Running Cosmological Constant: I. 4D
Taub-NUT Metrics | latex2e, final variant to be published in IJMPA | Int.J.Mod.Phys.A22:1135-1160,2007 | 10.1142/S0217751X07035045 | null | gr-qc hep-th math-ph math.DG math.MP | null | In this work we construct and analyze exact solutions describing Ricci flows
and nonholonomic deformations of four dimensional (4D) Taub-NUT spacetimes. It
is outlined a new geometric techniques of constructing Ricci flow solutions.
Some conceptual issues on spacetimes provided with generic off-diagonal metrics
and a... | [
{
"created": "Wed, 20 Sep 2006 18:57:44 GMT",
"version": "v1"
},
{
"created": "Fri, 2 Feb 2007 18:16:50 GMT",
"version": "v2"
}
] | 2008-11-26 | [
[
"Vacaru",
"Sergiu I.",
""
],
[
"Visinescu",
"Mihai",
""
]
] | In this work we construct and analyze exact solutions describing Ricci flows and nonholonomic deformations of four dimensional (4D) Taub-NUT spacetimes. It is outlined a new geometric techniques of constructing Ricci flow solutions. Some conceptual issues on spacetimes provided with generic off-diagonal metrics and ass... |
gr-qc/0506034 | Romualdo Tresguerres | Alfredo Tiemblo and Romualdo Tresguerres | Gravitational contribution to fermion masses | revtex4, 9 pages, no figures, to be published in Eur.Phys.J.C, 2005 | Eur.Phys.J.C42:437-444,2005 | 10.1140/epjc/s2005-02312-0 | null | gr-qc hep-th math-ph math.MP | null | In the context of a nonlinear gauge theory of the Poincar\'e group, we show
that covariant derivatives of Dirac fields include a coupling to the
translational connections, manifesting itself in the matter action as a
universal background mass contribution to fermions.
| [
{
"created": "Mon, 6 Jun 2005 15:10:03 GMT",
"version": "v1"
}
] | 2009-01-07 | [
[
"Tiemblo",
"Alfredo",
""
],
[
"Tresguerres",
"Romualdo",
""
]
] | In the context of a nonlinear gauge theory of the Poincar\'e group, we show that covariant derivatives of Dirac fields include a coupling to the translational connections, manifesting itself in the matter action as a universal background mass contribution to fermions. |
2307.10958 | William H. Kinney | William H. Kinney (Univ. at Buffalo, SUNY, USA), Suvashis Maity, L.
Sriramkumar (Indian Insitute of Technology, Madras, India) | The Borde-Guth-Vilenkin Theorem in extended de Sitter spaces | 23 pages, 4 figures (V2: Matches version accepted for publication in
Phys. Rev. D) | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The Borde-Guth-Vilenkin (BGV) theorem states that any spacetime with net
positive expansion must be geodesically incomplete. We derive a new version of
the theorem using the fluid flow formalism of General Relativity. The theorem
is purely kinematic, depending on the local expansion properties of geodesics,
and makes... | [
{
"created": "Thu, 20 Jul 2023 15:30:35 GMT",
"version": "v1"
},
{
"created": "Tue, 6 Feb 2024 21:22:07 GMT",
"version": "v2"
}
] | 2024-02-08 | [
[
"Kinney",
"William H.",
"",
"Univ. at Buffalo, SUNY, USA"
],
[
"Maity",
"Suvashis",
"",
"Indian Insitute of Technology, Madras, India"
],
[
"Sriramkumar",
"L.",
"",
"Indian Insitute of Technology, Madras, India"
]
] | The Borde-Guth-Vilenkin (BGV) theorem states that any spacetime with net positive expansion must be geodesically incomplete. We derive a new version of the theorem using the fluid flow formalism of General Relativity. The theorem is purely kinematic, depending on the local expansion properties of geodesics, and makes n... |
2207.14546 | Naimi Takka | N. Takka | Exact form of the generalized Lorentz force in Fock's nonlinear
relativity | null | Int. J. Mod. Phys. A34, 1950016 (2019) | 10.1142/S0217751X19500167 | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | This work completes a serie of two papers devoted to the extension of the
fundamental laws of electrodynamics in the context of Fock's nonlinear
relativity (FNLR). Indeed, after having established in the previous study the
exact generalizations of both Maxwell's equations and Dirac magnetic monopole,
we present here ... | [
{
"created": "Fri, 29 Jul 2022 08:28:22 GMT",
"version": "v1"
}
] | 2022-08-01 | [
[
"Takka",
"N.",
""
]
] | This work completes a serie of two papers devoted to the extension of the fundamental laws of electrodynamics in the context of Fock's nonlinear relativity (FNLR). Indeed, after having established in the previous study the exact generalizations of both Maxwell's equations and Dirac magnetic monopole, we present here th... |
1904.00280 | Geoffrey Comp\`ere | Geoffrey Comp\`ere | Infinite towers of supertranslation and superrotation memories | 5 pages. Proof of existence of towers of memories added. To be
published in PRL | Phys. Rev. Lett. 123, 021101 (2019) | 10.1103/PhysRevLett.123.021101 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A framework that structures the gravitational memory effects and which is
consistent with gravitational electric-magnetic duality is presented. A
correspondence is described between memory observables, particular subleading
residual gauge transformations, associated overleading gauge transformations
and their canonic... | [
{
"created": "Sat, 30 Mar 2019 20:24:32 GMT",
"version": "v1"
},
{
"created": "Thu, 4 Jul 2019 09:23:47 GMT",
"version": "v2"
}
] | 2019-07-17 | [
[
"Compère",
"Geoffrey",
""
]
] | A framework that structures the gravitational memory effects and which is consistent with gravitational electric-magnetic duality is presented. A correspondence is described between memory observables, particular subleading residual gauge transformations, associated overleading gauge transformations and their canonical... |
1609.03022 | Kota Ogasawara | Kota Ogasawara, Tomohiro Harada, Umpei Miyamoto, Takahisa Igata | Escape probability of the super-Penrose process | 5pages, 2figures | Phys. Rev. D 95, 124019 (2017) | 10.1103/PhysRevD.95.124019 | RUP-16-26 | gr-qc astro-ph.HE hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider a head-on collision of two massive particles that move in the
equatorial plane of an extremal Kerr black hole, which results in the
production of two massless particles. Focusing on a typical case, where both of
the colliding particles have zero angular momenta, we show that a massless
particle produced i... | [
{
"created": "Sat, 10 Sep 2016 09:55:59 GMT",
"version": "v1"
},
{
"created": "Wed, 21 Jun 2017 07:36:45 GMT",
"version": "v2"
}
] | 2017-06-22 | [
[
"Ogasawara",
"Kota",
""
],
[
"Harada",
"Tomohiro",
""
],
[
"Miyamoto",
"Umpei",
""
],
[
"Igata",
"Takahisa",
""
]
] | We consider a head-on collision of two massive particles that move in the equatorial plane of an extremal Kerr black hole, which results in the production of two massless particles. Focusing on a typical case, where both of the colliding particles have zero angular momenta, we show that a massless particle produced in ... |
1406.5524 | Parthasarathi Mitra | P. Mitra | Black hole entropy with and without log correction in loop quantum
gravity | 6 pages; talk delivered at Light Cone conference, Delhi, 2012, to
appear in Nucl. Phys. B [PS] 251-252 (2014) | Nucl. Phys. B [Proc. Suppl.] 251-252 (2014) 87 | 10.1016/j.nuclphysbps.2014.04.015 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Earlier calculations of black hole entropy in loop quantum gravity have given
a term proportional to the area with a correction involving the logarithm of
the area when the area eigenvalue is close to the classical area. However the
calculations yield an entropy proportional to the area eigenvalue with no such
correc... | [
{
"created": "Mon, 2 Jun 2014 04:52:50 GMT",
"version": "v1"
}
] | 2014-06-25 | [
[
"Mitra",
"P.",
""
]
] | Earlier calculations of black hole entropy in loop quantum gravity have given a term proportional to the area with a correction involving the logarithm of the area when the area eigenvalue is close to the classical area. However the calculations yield an entropy proportional to the area eigenvalue with no such correcti... |
gr-qc/9508048 | null | R.D. Daniels and G.M. Shore | `Faster than light' photons and rotating black holes | Plain TeX, 12 pages, 1 figure | Phys.Lett. B367 (1996) 75-83 | 10.1016/0370-2693(95)01468-3 | SWAT 95/71 CERN-TH/95-229 | gr-qc hep-th | null | The effective action for QED in curved spacetime includes equivalence
principle violating interactions between the electromagnetic field and the
spacetime curvature. These interactions admit the possibility of superluminal
yet causal photon propagation in gravitational fields. In this paper, we extend
our analysis of... | [
{
"created": "Tue, 22 Aug 1995 14:36:46 GMT",
"version": "v1"
}
] | 2009-10-28 | [
[
"Daniels",
"R. D.",
""
],
[
"Shore",
"G. M.",
""
]
] | The effective action for QED in curved spacetime includes equivalence principle violating interactions between the electromagnetic field and the spacetime curvature. These interactions admit the possibility of superluminal yet causal photon propagation in gravitational fields. In this paper, we extend our analysis of p... |
1303.5593 | Rabin Banerjee | Rabin Banerjee | Exact results in two dimensional chiral hydrodynamics with gravitational
anomalies | 9 pages, Expanded version, Couple of equations modified, new
reference added; minor textual changes and new equations added in the final
version, To appear in EPJC | null | 10.1140/epjc/s10052-014-2824-4 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | An exact formulation of two dimensional chiral hydrodynamics with
diffeomorphism and conformal anomalies is provided. The constitutive relation
involving the stress tensor is computed. It reveals a one parameter class of
solutions which is a new result. For a particular value of this parameter, the
results found in t... | [
{
"created": "Fri, 22 Mar 2013 12:15:05 GMT",
"version": "v1"
},
{
"created": "Fri, 26 Apr 2013 12:35:24 GMT",
"version": "v2"
},
{
"created": "Fri, 21 Mar 2014 05:52:57 GMT",
"version": "v3"
}
] | 2014-03-24 | [
[
"Banerjee",
"Rabin",
""
]
] | An exact formulation of two dimensional chiral hydrodynamics with diffeomorphism and conformal anomalies is provided. The constitutive relation involving the stress tensor is computed. It reveals a one parameter class of solutions which is a new result. For a particular value of this parameter, the results found in the... |
1712.05675 | Giuseppe Fanizza | Ermis Mitsou, Fulvio Scaccabarozzi and Giuseppe Fanizza | Observed Angles and Geodesic Light-Cone Coordinates | 6 pages, final version accepted for publication in Classical and
Quantum Gravity | Class.Quant.Grav. 35 (2018) no.10, 107002 | 10.1088/1361-6382/aab06b | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We discuss the interpretation of the angles in the Geodesic Light-Cone (GLC)
coordinates. In particular, we clarify the way in which these angles can be
identified with the observed ones. We show that, although this identification
is always possible in principle, one cannot implement it in the usual
gauge-fixing way,... | [
{
"created": "Fri, 15 Dec 2017 13:52:07 GMT",
"version": "v1"
},
{
"created": "Tue, 17 Apr 2018 09:43:22 GMT",
"version": "v2"
}
] | 2018-04-18 | [
[
"Mitsou",
"Ermis",
""
],
[
"Scaccabarozzi",
"Fulvio",
""
],
[
"Fanizza",
"Giuseppe",
""
]
] | We discuss the interpretation of the angles in the Geodesic Light-Cone (GLC) coordinates. In particular, we clarify the way in which these angles can be identified with the observed ones. We show that, although this identification is always possible in principle, one cannot implement it in the usual gauge-fixing way, i... |
2207.00631 | Vyacheslav Vandeev | V.P. Vandeev, A.N. Semenova | Tidal properties of D-dimensional Tangherlini black holes | 17 pages. Indian J Phys (2022) | null | 10.1007/s12648-022-02543-5 | null | gr-qc | http://creativecommons.org/publicdomain/zero/1.0/ | This paper investigates tidal forces in multidimensional spherically
symmetric spacetimes. We consider geodesic deviation equation in
Schwarzschild-Tangherlini metric and its electrically charged analog. It was
shown that for radial geodesics these equations can be solved explicitly as
quadratures in spaces of any di... | [
{
"created": "Fri, 1 Jul 2022 19:15:26 GMT",
"version": "v1"
}
] | 2023-01-09 | [
[
"Vandeev",
"V. P.",
""
],
[
"Semenova",
"A. N.",
""
]
] | This paper investigates tidal forces in multidimensional spherically symmetric spacetimes. We consider geodesic deviation equation in Schwarzschild-Tangherlini metric and its electrically charged analog. It was shown that for radial geodesics these equations can be solved explicitly as quadratures in spaces of any dime... |
gr-qc/9807030 | Ernest Tagirov | E.A.Tagirov | Quantum Mechanics in General Relativity | 22 pages | null | null | null | gr-qc | null | Having started with the general formulation of the quantum theory of the real
scalar field (QFT) in the general Riemannian space--time $ V_{1,3} $, the
general--covariant quasinonrelativistic quantum mechanics of a point-like
spinless particle in $ V_{1,3} $ is constructed. To this end, for any normal
geodesic 1+3--f... | [
{
"created": "Tue, 14 Jul 1998 20:32:26 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Tagirov",
"E. A.",
""
]
] | Having started with the general formulation of the quantum theory of the real scalar field (QFT) in the general Riemannian space--time $ V_{1,3} $, the general--covariant quasinonrelativistic quantum mechanics of a point-like spinless particle in $ V_{1,3} $ is constructed. To this end, for any normal geodesic 1+3--fol... |
1709.09573 | Behnam Pourhassan | Behnam Pourhassan, Mir Faizal, Zaid Zaz, and Anha Bhat | Quantum Fluctuations of a BTZ Black Hole in Massive Gravity | Accepted for publication in PLB | Phys. Lett. B 773 (2017) 325 | 10.1016/j.physletb.2017.08.046 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this work, we shall analyze the effects of quantum fluctuations on the
properties of a BTZ black hole, in a massive theory of gravity. We will analyze
this for a charged BTZ black hole in asymptotically AdS and dS space-times. The
quantum fluctuations would produce thermal fluctuations in the thermodynamics
of thi... | [
{
"created": "Tue, 12 Sep 2017 04:06:00 GMT",
"version": "v1"
}
] | 2017-10-17 | [
[
"Pourhassan",
"Behnam",
""
],
[
"Faizal",
"Mir",
""
],
[
"Zaz",
"Zaid",
""
],
[
"Bhat",
"Anha",
""
]
] | In this work, we shall analyze the effects of quantum fluctuations on the properties of a BTZ black hole, in a massive theory of gravity. We will analyze this for a charged BTZ black hole in asymptotically AdS and dS space-times. The quantum fluctuations would produce thermal fluctuations in the thermodynamics of this ... |
1606.04044 | Tim Koslowski A | Joseph Ben Geloun, Tim A. Koslowski | Nontrivial UV behavior of rank-4 tensor field models for quantum gravity | Latex, 4 pages + references | null | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate the universality classes of rank-4 colored bipartite U(1)
tensor field models near the Gaussian fixed point with the functional
renormalization group. In a truncation that contains all power counting
relevant and marginal operators, we find a one-dimensional UV attractor that is
connected with the Gaus... | [
{
"created": "Mon, 13 Jun 2016 17:31:02 GMT",
"version": "v1"
}
] | 2016-06-14 | [
[
"Geloun",
"Joseph Ben",
""
],
[
"Koslowski",
"Tim A.",
""
]
] | We investigate the universality classes of rank-4 colored bipartite U(1) tensor field models near the Gaussian fixed point with the functional renormalization group. In a truncation that contains all power counting relevant and marginal operators, we find a one-dimensional UV attractor that is connected with the Gaussi... |
1609.00826 | Peter K.F. Kuhfittig | Peter K. F. Kuhfittig | The effect of conformal symmetry on charged wormholes | 10 pages, 1 figure | JAMP, vol. 4, pp. 2117-2125, 2016 | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | This paper discusses the effect that conformal symmetry can have on a charged
wormhole. The analysis yields a physical interpretation of the conformal factor
in terms of the electric charge. The rate of change of the conformal factor
determines much of the outcome, which ranges from having no solution to
wormholes ha... | [
{
"created": "Sat, 3 Sep 2016 13:21:50 GMT",
"version": "v1"
},
{
"created": "Wed, 7 Dec 2016 20:10:35 GMT",
"version": "v2"
}
] | 2016-12-08 | [
[
"Kuhfittig",
"Peter K. F.",
""
]
] | This paper discusses the effect that conformal symmetry can have on a charged wormhole. The analysis yields a physical interpretation of the conformal factor in terms of the electric charge. The rate of change of the conformal factor determines much of the outcome, which ranges from having no solution to wormholes havi... |
gr-qc/9801031 | Perjes Zoltan | L\'aszl\'o \'A. Gergely, Zolt\'an I. Perj\'es and M\'aty\'as Vas\'uth
(KFKI RMKI, Budapest) | Spin effects in gravitational radiation backreaction II. Finite mass
effects | 12 pages, 1 figure, Phys.Rev.D15, March, 1998 | Phys.Rev. D57 (1998) 3423-3432 | 10.1103/PhysRevD.57.3423 | null | gr-qc | null | A convenient formalism for averaging the losses produced by gravitational
radiation backreaction over one orbital period was developed in an earlier
paper. In the present paper we generalize this formalism to include the case of
a closed system composed from two bodies of comparable masses, one of them
having the spi... | [
{
"created": "Sat, 10 Jan 1998 18:06:06 GMT",
"version": "v1"
},
{
"created": "Tue, 8 Sep 1998 12:10:31 GMT",
"version": "v2"
}
] | 2016-08-31 | [
[
"Gergely",
"László Á.",
"",
"KFKI RMKI, Budapest"
],
[
"Perjés",
"Zoltán I.",
"",
"KFKI RMKI, Budapest"
],
[
"Vasúth",
"Mátyás",
"",
"KFKI RMKI, Budapest"
]
] | A convenient formalism for averaging the losses produced by gravitational radiation backreaction over one orbital period was developed in an earlier paper. In the present paper we generalize this formalism to include the case of a closed system composed from two bodies of comparable masses, one of them having the spin ... |
gr-qc/9606037 | Patrick Peter | Jean-Philippe Uzan and Patrick Peter (DARC - Observatoire de Meudon,
France) | The no-defect conjecture in cosmic crystallography | LaTeX-REVTeX, 5 pages and 2 figures uuencoded, submitted to Phys.
Rev. Lett | Phys.Lett. B406 (1997) 20-25 | 10.1016/S0370-2693(97)00686-2 | null | gr-qc | null | The topology of space is usually assumed simply connected, but could be
multi-connected. We review in the latter case the possibility that topological
defects arising at high energy phase transitions might still be present and
find that either they are very unlikely to form at all, or space is effectively
simply conn... | [
{
"created": "Sat, 15 Jun 1996 01:41:51 GMT",
"version": "v1"
}
] | 2009-10-28 | [
[
"Uzan",
"Jean-Philippe",
"",
"DARC - Observatoire de Meudon,\n France"
],
[
"Peter",
"Patrick",
"",
"DARC - Observatoire de Meudon,\n France"
]
] | The topology of space is usually assumed simply connected, but could be multi-connected. We review in the latter case the possibility that topological defects arising at high energy phase transitions might still be present and find that either they are very unlikely to form at all, or space is effectively simply connec... |
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