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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
gr-qc/0306099 | Ali Shojai | Fatimah Shojai and Ali Shojai | On The Relation of Weyl Geometry and Bohmian Quantum Mechanics | null | Gravitation and Cosmology, 2003 | null | AEI-2002-060 | gr-qc | null | It is shown that the recently geometric formulation of quantum mechanics
implies the use of Weyl geometry. It is discussed that the natural framework
for both gravity and quantum is Weyl geometry. At the end a Weyl invariant
theory is built, and it is shown that both gravity and quantum are present at
the level of eq... | [
{
"created": "Sun, 22 Jun 2003 11:27:01 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Shojai",
"Fatimah",
""
],
[
"Shojai",
"Ali",
""
]
] | It is shown that the recently geometric formulation of quantum mechanics implies the use of Weyl geometry. It is discussed that the natural framework for both gravity and quantum is Weyl geometry. At the end a Weyl invariant theory is built, and it is shown that both gravity and quantum are present at the level of equa... |
1303.6464 | Luciano Rezzolla | Luciano Rezzolla | Three little pieces for computer and relativity | 42 pages, 11 figures. Plenary talk at "Relativity and Gravitation:
100 Years after Einstein in Prague", June 25 - 29, 2012, Prague, Czech
Republic. To appear in the Proceedings (Edition Open Access). Collects
results appeared in journal articles [72,73, 122-124] | null | 10.1007/978-3-319-06349-2_19 | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Numerical relativity has made big strides over the last decade. A number of
problems that have plagued the field for years have now been mostly solved.
This progress has transformed numerical relativity into a powerful tool to
explore fundamental problems in physics and astrophysics, and I present here
three represen... | [
{
"created": "Tue, 26 Mar 2013 12:56:10 GMT",
"version": "v1"
}
] | 2015-06-15 | [
[
"Rezzolla",
"Luciano",
""
]
] | Numerical relativity has made big strides over the last decade. A number of problems that have plagued the field for years have now been mostly solved. This progress has transformed numerical relativity into a powerful tool to explore fundamental problems in physics and astrophysics, and I present here three representa... |
1612.04959 | Filip Hejda | Filip Hejda, Ji\v{r}\'i Bi\v{c}\'ak | Kinematic restrictions on particle collisions near extremal black holes:
A unified picture | Some minor inaccuracies corrected, adjustments made to fit the
journal version | Phys. Rev. D 95, 084055 (2017) | 10.1103/PhysRevD.95.084055 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In 2009, Banados, Silk and West (BSW) pointed out the possibility of having
an unbounded limit of centre-of-mass collision energy for test particles in the
field of an extremal Kerr black hole, if one of them has fine-tuned parameters
and the collision point is approaching the horizon. The possibility of this
"BSW ef... | [
{
"created": "Thu, 15 Dec 2016 08:04:11 GMT",
"version": "v1"
},
{
"created": "Wed, 10 May 2017 14:34:35 GMT",
"version": "v2"
}
] | 2017-05-11 | [
[
"Hejda",
"Filip",
""
],
[
"Bičák",
"Jiří",
""
]
] | In 2009, Banados, Silk and West (BSW) pointed out the possibility of having an unbounded limit of centre-of-mass collision energy for test particles in the field of an extremal Kerr black hole, if one of them has fine-tuned parameters and the collision point is approaching the horizon. The possibility of this "BSW effe... |
1204.4032 | Hao Wei | Hao Wei | Pilgrim Dark Energy | 10 pages, 3 figures, revtex4; v2: references added, Class. Quant.
Grav. in press; v3: published version | Class.Quant.Grav.29:175008,2012 | 10.1088/0264-9381/29/17/175008 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In the present work, we reconsider the idea of holographic dark energy. One
of its key points is the formation of the black hole. And then, we propose the
so-called "pilgrim dark energy" based on the speculation that the repulsive
force contributed by the phantom-like dark energy ($w<-1$) is strong enough to
prevent ... | [
{
"created": "Wed, 18 Apr 2012 10:15:00 GMT",
"version": "v1"
},
{
"created": "Mon, 23 Jul 2012 18:41:00 GMT",
"version": "v2"
},
{
"created": "Thu, 30 Aug 2012 07:00:00 GMT",
"version": "v3"
}
] | 2012-08-31 | [
[
"Wei",
"Hao",
""
]
] | In the present work, we reconsider the idea of holographic dark energy. One of its key points is the formation of the black hole. And then, we propose the so-called "pilgrim dark energy" based on the speculation that the repulsive force contributed by the phantom-like dark energy ($w<-1$) is strong enough to prevent th... |
gr-qc/9911052 | Andrew W. Whinnett | A. W. Whinnett | Spontaneous Scalarization and Boson Stars | 23 pages, 5 postscript figures. Typing errors corrected. Includes
some new text that relates the paper to several previous results. Accepted
for publication in PRD | Phys.Rev. D61 (2000) 124014 | 10.1103/PhysRevD.61.124014 | null | gr-qc | null | We study spontaneous scalarization in Scalar-Tensor boson stars. We find that
scalarization does not occur in stars whose bosons have no self-interaction. We
introduce a quartic self-interaction term into the boson Lagrangian and show
that when this term is large, scalarization does occur. Strong self-interaction
lea... | [
{
"created": "Mon, 15 Nov 1999 15:06:09 GMT",
"version": "v1"
},
{
"created": "Thu, 17 Feb 2000 14:00:30 GMT",
"version": "v2"
}
] | 2009-10-31 | [
[
"Whinnett",
"A. W.",
""
]
] | We study spontaneous scalarization in Scalar-Tensor boson stars. We find that scalarization does not occur in stars whose bosons have no self-interaction. We introduce a quartic self-interaction term into the boson Lagrangian and show that when this term is large, scalarization does occur. Strong self-interaction leads... |
1810.10831 | Shahn Majid | Shahn Majid | Quantum gravity on a square graph | 17 pages latex, 2 pdf figures | null | 10.1088/1361-6382/ab4975 | null | gr-qc hep-th math.QA | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider functional-integral quantisation of the moduli of all quantum
metrics defined as square-lengths $a$ on the edges of a Lorentzian square
graph. We determine correlation functions and find a fixed relative uncertainty
$\Delta a/<a>= 1/\sqrt{8}$ for the edge square-lengths relative to their
expected value $<... | [
{
"created": "Thu, 25 Oct 2018 11:07:10 GMT",
"version": "v1"
}
] | 2020-01-08 | [
[
"Majid",
"Shahn",
""
]
] | We consider functional-integral quantisation of the moduli of all quantum metrics defined as square-lengths $a$ on the edges of a Lorentzian square graph. We determine correlation functions and find a fixed relative uncertainty $\Delta a/<a>= 1/\sqrt{8}$ for the edge square-lengths relative to their expected value $<a>... |
2303.17377 | Francisco Jos\'e Maldonado Torralba | Francisco Jos\'e Maldonado Torralba | Averaged energy conditions for vector fields | 4 pages | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this work we shall obtain sufficient conditions for the appearance of
singularities in gravitational theories which propagate an extra vector degree
of freedom, based on the known relaxations of the singularity theorems. We
study the cases of a general Proca field and a vector theory with stable
self-derivative in... | [
{
"created": "Thu, 30 Mar 2023 13:44:20 GMT",
"version": "v1"
}
] | 2023-03-31 | [
[
"Torralba",
"Francisco José Maldonado",
""
]
] | In this work we shall obtain sufficient conditions for the appearance of singularities in gravitational theories which propagate an extra vector degree of freedom, based on the known relaxations of the singularity theorems. We study the cases of a general Proca field and a vector theory with stable self-derivative inte... |
2307.00281 | Mouhssine Koussour | A. Mussatayeva, N. Myrzakulov and M. Koussour | Cosmological constraints on dark energy in $f(Q)$ gravity: A
parametrized perspective | Physics of the Dark Universe published version | Physics of the Dark Universe (2023) | 10.1016/j.dark.2023.101276 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper, we focus on the parametrization of the effective equation of
state (EoS) parameter within the framework of $f(Q)$ symmetric teleparallel
gravity. Here, the gravitational action is represented by an arbitrary function
of the non-metricity scalar $Q$. By utilizing a specific parametrization of the
effect... | [
{
"created": "Sat, 1 Jul 2023 09:27:17 GMT",
"version": "v1"
}
] | 2023-07-04 | [
[
"Mussatayeva",
"A.",
""
],
[
"Myrzakulov",
"N.",
""
],
[
"Koussour",
"M.",
""
]
] | In this paper, we focus on the parametrization of the effective equation of state (EoS) parameter within the framework of $f(Q)$ symmetric teleparallel gravity. Here, the gravitational action is represented by an arbitrary function of the non-metricity scalar $Q$. By utilizing a specific parametrization of the effectiv... |
1905.11843 | Martin Bojowald | Bekir Baytas, Martin Bojowald, Sean Crowe, Jakub Mielczarek | Minisuperspace results for causal dynamical triangulations | 51 pages, 16 figures | JCAP 01 (2020) 019 | 10.1088/1475-7516/2020/01/019 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Detailed applications of minisuperspace methods are presented and compared
with results obtained in recent years by means of causal dynamical
triangulations (CDTs), mainly in the form of effective actions. The analysis
sheds light on conceptual questions such as the treatment of time or the role
and scaling behavior ... | [
{
"created": "Tue, 28 May 2019 14:26:03 GMT",
"version": "v1"
}
] | 2020-01-09 | [
[
"Baytas",
"Bekir",
""
],
[
"Bojowald",
"Martin",
""
],
[
"Crowe",
"Sean",
""
],
[
"Mielczarek",
"Jakub",
""
]
] | Detailed applications of minisuperspace methods are presented and compared with results obtained in recent years by means of causal dynamical triangulations (CDTs), mainly in the form of effective actions. The analysis sheds light on conceptual questions such as the treatment of time or the role and scaling behavior of... |
1104.5659 | Guillaume Faye | Luc Blanchet (IAP), Alessandra Buonanno, Guillaume Faye (IAP) | Tail-induced spin-orbit effect in the gravitational radiation of compact
binaries | Minor corrections. To be published in Physical Review D | null | 10.1103/PhysRevD.84.064041 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Gravitational waves contain tail effects which are due to the back-scattering
of linear waves in the curved space-time geometry around the source. In this
paper we improve the knowledge and accuracy of the two-body inspiraling
post-Newtonian (PN) dynamics and gravitational-wave signal by computing the
spin-orbit term... | [
{
"created": "Fri, 29 Apr 2011 15:19:23 GMT",
"version": "v1"
},
{
"created": "Mon, 12 Sep 2011 08:30:21 GMT",
"version": "v2"
}
] | 2015-05-28 | [
[
"Blanchet",
"Luc",
"",
"IAP"
],
[
"Buonanno",
"Alessandra",
"",
"IAP"
],
[
"Faye",
"Guillaume",
"",
"IAP"
]
] | Gravitational waves contain tail effects which are due to the back-scattering of linear waves in the curved space-time geometry around the source. In this paper we improve the knowledge and accuracy of the two-body inspiraling post-Newtonian (PN) dynamics and gravitational-wave signal by computing the spin-orbit terms ... |
gr-qc/0403060 | Steven Carlip | S. Carlip | Model-Dependence of Shapiro Time Delay and the "Speed of Gravity/Speed
of Light" Controversy | 12 pages, LaTeX; v2: added discussion of present observational
limits, and of relative importance of various contributions to time delay;
new references; v3: minor clarifications in response to referee | Class.Quant.Grav.21:3803-3812,2004 | 10.1088/0264-9381/21/15/011 | UCD-04-19 | gr-qc astro-ph | null | Fomalont and Kopeikin have recently succeeded in measuring the
velocity-dependent component of the Shapiro time delay of light from a quasar
passing behind Jupiter. While there is general agreement that this observation
tests the gravitomagnetic properties of the gravitational field, a controversy
has emerged over th... | [
{
"created": "Sun, 14 Mar 2004 23:34:09 GMT",
"version": "v1"
},
{
"created": "Fri, 23 Apr 2004 00:16:14 GMT",
"version": "v2"
},
{
"created": "Wed, 2 Jun 2004 22:25:41 GMT",
"version": "v3"
}
] | 2010-04-28 | [
[
"Carlip",
"S.",
""
]
] | Fomalont and Kopeikin have recently succeeded in measuring the velocity-dependent component of the Shapiro time delay of light from a quasar passing behind Jupiter. While there is general agreement that this observation tests the gravitomagnetic properties of the gravitational field, a controversy has emerged over the ... |
gr-qc/0012024 | Claude Barrabes | C. Barrab\`es and P. A. Hogan | Bursts of Radiation and Recoil Effects in Electromagnetism and
Gravitation | 24 pages LaTeX2e, 2 figures (included). Published in Class. Quant.
Gravity | Class.Quant.Grav. 17 (2000) 4667 | 10.1088/0264-9381/17/22/308 | null | gr-qc | null | The Maxwell field of a charge e which experiences an impulsive acceleration
or deceleration is constructed explicitly by subdividing Minkowskian space-time
into two halves bounded by a future null-cone and then glueing the halves back
together with appropriate matching conditions. The resulting retarded radiation
can... | [
{
"created": "Wed, 6 Dec 2000 11:31:16 GMT",
"version": "v1"
}
] | 2009-10-31 | [
[
"Barrabès",
"C.",
""
],
[
"Hogan",
"P. A.",
""
]
] | The Maxwell field of a charge e which experiences an impulsive acceleration or deceleration is constructed explicitly by subdividing Minkowskian space-time into two halves bounded by a future null-cone and then glueing the halves back together with appropriate matching conditions. The resulting retarded radiation can b... |
gr-qc/0612127 | Filimonova Irina V | H. Emoto | Quantum Gravity Through Non-Perturbative Renormalization Group and
Improved Black Hole | 14, Plenary talk presented at Workshop on High Energy Physics&Field
Theory (Protvino, Russia, 2005) | null | null | HEPFT/2005/13 | gr-qc | null | Usually, General Relativity (GR) is known to be unrenormalizable
perturbatively from the viewpoint of quantum field theory. But in the modern
sense of renormalizability, there still remains the possibility to investigate
whether GR is "nonpertubatively" renormalizable or not. Here I review the
basics and results in t... | [
{
"created": "Wed, 20 Dec 2006 10:55:26 GMT",
"version": "v1"
},
{
"created": "Wed, 21 Feb 2007 13:09:52 GMT",
"version": "v2"
}
] | 2007-05-23 | [
[
"Emoto",
"H.",
""
]
] | Usually, General Relativity (GR) is known to be unrenormalizable perturbatively from the viewpoint of quantum field theory. But in the modern sense of renormalizability, there still remains the possibility to investigate whether GR is "nonpertubatively" renormalizable or not. Here I review the basics and results in thi... |
1412.1575 | Antonio De Felice | Antonio De Felice, Misao Sasaki | Ghosts in classes of non-local gravity | 13 pages | null | 10.1016/j.physletb.2015.02.045 | YITP-14-99 | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider a class of non-local gravity theories where the Lagrangian is a
function of powers of the inverse d'Alembertian operator acting on the Ricci
scalar. We take an approach in which the non-local Lagrangian is made local by
introducing auxiliary scalar fields, and study the degrees of freedom of the
localized... | [
{
"created": "Thu, 4 Dec 2014 07:44:29 GMT",
"version": "v1"
},
{
"created": "Mon, 2 Mar 2015 02:47:13 GMT",
"version": "v2"
}
] | 2015-03-03 | [
[
"De Felice",
"Antonio",
""
],
[
"Sasaki",
"Misao",
""
]
] | We consider a class of non-local gravity theories where the Lagrangian is a function of powers of the inverse d'Alembertian operator acting on the Ricci scalar. We take an approach in which the non-local Lagrangian is made local by introducing auxiliary scalar fields, and study the degrees of freedom of the localized L... |
0810.5163 | Ian Morrison | Donald Marolf and Ian A. Morrison | Group Averaging for de Sitter free fields | 33 pages, 2 figures | Class.Quant.Grav.26:235003,2009 | 10.1088/0264-9381/26/23/235003 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Perturbative gravity about global de Sitter space is subject to
linearization-stability constraints. Such constraints imply that quantum states
of matter fields couple consistently to gravity {\it only} if the matter state
has vanishing de Sitter charges; i.e., only if the state is invariant under the
symmetries of d... | [
{
"created": "Tue, 28 Oct 2008 23:12:24 GMT",
"version": "v1"
}
] | 2009-11-13 | [
[
"Marolf",
"Donald",
""
],
[
"Morrison",
"Ian A.",
""
]
] | Perturbative gravity about global de Sitter space is subject to linearization-stability constraints. Such constraints imply that quantum states of matter fields couple consistently to gravity {\it only} if the matter state has vanishing de Sitter charges; i.e., only if the state is invariant under the symmetries of de ... |
1303.1274 | Roberto Casadio | R. Casadio | Charged shells and elementary particles | 11 pages, 5 figures | null | 10.1142/S0217751X13500887 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We review the General Relativistic model of a (quasi) point-like particle
represented by a massive shell of electrically charged matter, which displays
an ADM mass M equal to the electric charge |Q| in the small-volume limit. We
employ the Israel-Darboux's junction equations to explicitly derive this
result, and then... | [
{
"created": "Wed, 6 Mar 2013 08:46:47 GMT",
"version": "v1"
}
] | 2015-06-15 | [
[
"Casadio",
"R.",
""
]
] | We review the General Relativistic model of a (quasi) point-like particle represented by a massive shell of electrically charged matter, which displays an ADM mass M equal to the electric charge |Q| in the small-volume limit. We employ the Israel-Darboux's junction equations to explicitly derive this result, and then s... |
1702.06771 | Soumen Roy | Soumen Roy, Anand S. Sengupta, Nilay Thakor | Hybrid geometric-random template placement algorithm for gravitational
wave searches from compact binary coalescences | Typo error is fixed in the expression of $\theta_{3s}$ in equation
(7) | Phys. Rev. D 95, 104045 (2017) | 10.1103/PhysRevD.95.104045 | LIGO-P1700021 | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Astrophysical compact binary systems consisting of neutron stars and
blackholes are an important class of gravitational wave (GW) sources for
advanced LIGO detectors. Accurate theoretical waveform models from the
inspiral, merger and ringdown phases of such systems, are used to filter
detector data under the template... | [
{
"created": "Wed, 22 Feb 2017 12:22:07 GMT",
"version": "v1"
},
{
"created": "Mon, 5 Jun 2017 19:20:33 GMT",
"version": "v2"
},
{
"created": "Sun, 12 Nov 2017 10:29:49 GMT",
"version": "v3"
}
] | 2017-11-15 | [
[
"Roy",
"Soumen",
""
],
[
"Sengupta",
"Anand S.",
""
],
[
"Thakor",
"Nilay",
""
]
] | Astrophysical compact binary systems consisting of neutron stars and blackholes are an important class of gravitational wave (GW) sources for advanced LIGO detectors. Accurate theoretical waveform models from the inspiral, merger and ringdown phases of such systems, are used to filter detector data under the template b... |
2009.08665 | Ibrahim G\"ull\"u | Ibrahim Gullu and S. Habib Mazharimousavi | Double-logarithmic nonlinear electrodynamics | 10 pages | null | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A new model of nonlinear electrodynamics named as \emph{"double-logarithmic"}
is introduced and investigated. The theory carries one dimensionful parameter
of the $\beta$ as Born-Infeld electrodynamics. It is shown that the dual
symmetry and dilatation (scale) symmetry are broken in the proposed model. The
electric f... | [
{
"created": "Fri, 18 Sep 2020 07:34:13 GMT",
"version": "v1"
}
] | 2020-09-21 | [
[
"Gullu",
"Ibrahim",
""
],
[
"Mazharimousavi",
"S. Habib",
""
]
] | A new model of nonlinear electrodynamics named as \emph{"double-logarithmic"} is introduced and investigated. The theory carries one dimensionful parameter of the $\beta$ as Born-Infeld electrodynamics. It is shown that the dual symmetry and dilatation (scale) symmetry are broken in the proposed model. The electric fie... |
0902.2532 | Florian Beyer | Florian Beyer | Non-genericity of the Nariai solutions: II. Investigations within the
Gowdy class | 28 pages, 12 figures, uses psfrag and hyperref, largely rewritten
version essentially equal to the published version but more details, no
change of conclusions | Class.Quant.Grav.26:235016 | 10.1088/0264-9381/26/23/235016 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | This is the second of two papers where we study the asymptotics of the
generalized Nariai solutions and its relation to the cosmic no-hair conjecture.
In the first paper, the author suggested that according to the cosmic no-hair
conjecture, the Nariai solutions are non-generic among general solutions of
Einstein's fi... | [
{
"created": "Sun, 15 Feb 2009 15:03:43 GMT",
"version": "v1"
},
{
"created": "Thu, 12 Nov 2009 04:39:41 GMT",
"version": "v2"
}
] | 2011-03-28 | [
[
"Beyer",
"Florian",
""
]
] | This is the second of two papers where we study the asymptotics of the generalized Nariai solutions and its relation to the cosmic no-hair conjecture. In the first paper, the author suggested that according to the cosmic no-hair conjecture, the Nariai solutions are non-generic among general solutions of Einstein's fiel... |
1205.0209 | Wen-Jian Pan | Yi Ling, Wen-Jian Pan | (m,n)-type holographic dark energy models | 18 pages, no figure, Sec. 5 added, introduction and conclusion
improved, a reference added, some references updated, published in MPLA | Mod. Phys. Lett. A, Vol. 28, No. 31 (2013) 1350128 | 10.1142/S0217732313501289 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We construct $(m,n)$-type holographic dark energy models at a
phenomenological level, which can be viewed as a generalization of agegraphic
models with the conformal-like age as the holographic characteristic size. For
some values of $(m,n)$ the holographic dark energy can automatically evolve
across $\omega=-1$ into... | [
{
"created": "Tue, 1 May 2012 16:41:01 GMT",
"version": "v1"
},
{
"created": "Mon, 28 May 2012 15:08:23 GMT",
"version": "v2"
},
{
"created": "Wed, 18 Sep 2013 12:07:37 GMT",
"version": "v3"
}
] | 2013-09-19 | [
[
"Ling",
"Yi",
""
],
[
"Pan",
"Wen-Jian",
""
]
] | We construct $(m,n)$-type holographic dark energy models at a phenomenological level, which can be viewed as a generalization of agegraphic models with the conformal-like age as the holographic characteristic size. For some values of $(m,n)$ the holographic dark energy can automatically evolve across $\omega=-1$ into a... |
1203.4222 | Fabio Capela | Fabio Capela and Germano Nardini | Hairy Black Holes in Massive Gravity: Thermodynamics and Phase Structure | 12 pages, 11 figures, relevant references added, match the published
version | Phys. Rev. D 86, 024030 (2012) | 10.1103/PhysRevD.86.024030 | BI-TP 2012/06; ULB-TH/12-06 | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The thermodynamic properties of a static and spherically symmetric hairy
black hole solution arising in massive gravity with spontaneous Lorentz
breaking are investigated. The analysis is carried out by enclosing the black
hole in a spherical cavity whose surface is maintained at a fixed temperature
$T$. It turns out... | [
{
"created": "Mon, 19 Mar 2012 19:58:14 GMT",
"version": "v1"
},
{
"created": "Wed, 1 Aug 2012 12:38:41 GMT",
"version": "v2"
}
] | 2012-08-02 | [
[
"Capela",
"Fabio",
""
],
[
"Nardini",
"Germano",
""
]
] | The thermodynamic properties of a static and spherically symmetric hairy black hole solution arising in massive gravity with spontaneous Lorentz breaking are investigated. The analysis is carried out by enclosing the black hole in a spherical cavity whose surface is maintained at a fixed temperature $T$. It turns out t... |
gr-qc/0503077 | Amos Ori | Amos Ori | A new time-machine model with compact vacuum core | 7 pages | null | 10.1103/PhysRevLett.95.021101 | null | gr-qc | null | We present a class of curved-spacetime vacuum solutions which develope closed
timelike curves at some particular moment. We then use these vacuum solutions
to construct a time-machine model. The causality violation occurs inside an
empty torus, which constitutes the time-machine core. The matter field
surrounding thi... | [
{
"created": "Thu, 17 Mar 2005 19:17:57 GMT",
"version": "v1"
}
] | 2009-11-11 | [
[
"Ori",
"Amos",
""
]
] | We present a class of curved-spacetime vacuum solutions which develope closed timelike curves at some particular moment. We then use these vacuum solutions to construct a time-machine model. The causality violation occurs inside an empty torus, which constitutes the time-machine core. The matter field surrounding this ... |
1703.06341 | Nicolas Yunes | Thibaut Arnoulx de Pirey Saint Alby, Nicolas Yunes | Cosmological Evolution and Solar System Consistency of Massive
Scalar-Tensor Gravity | 19 pages, 4 figures, replaced with version accepted for publication
in Phys. Rev. D | Phys. Rev. D 96, 064040 (2017) | 10.1103/PhysRevD.96.064040 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The scalar-tensor theory of Damour and Esposito-Far\`ese recently gained some
renewed interest because of its ability to suppress modifications to General
Relativity in the weak field, while introducing large corrections in the strong
field of compact objects through a process called scalarization. A large sector
of ... | [
{
"created": "Sat, 18 Mar 2017 19:59:57 GMT",
"version": "v1"
},
{
"created": "Sun, 17 Sep 2017 14:28:48 GMT",
"version": "v2"
}
] | 2017-09-27 | [
[
"Alby",
"Thibaut Arnoulx de Pirey Saint",
""
],
[
"Yunes",
"Nicolas",
""
]
] | The scalar-tensor theory of Damour and Esposito-Far\`ese recently gained some renewed interest because of its ability to suppress modifications to General Relativity in the weak field, while introducing large corrections in the strong field of compact objects through a process called scalarization. A large sector of th... |
2201.03903 | Sebastian Golat | Sebastian Golat, Carlo R. Contaldi | All-sky analysis of astrochronometric signals induced by gravitational
waves | 15 pages, 7 figures, 4 tables | null | 10.1103/PhysRevD.105.063502 | null | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We introduce a unified formalism to describe both timing and astrometric
perturbations induced on astrophysical point sources by gravitational waves
using a complex spin field on the sphere. This allows the use of spin-weighted
spherical harmonics to analyse "astrochronometric" observables. This approach
simplifies t... | [
{
"created": "Tue, 11 Jan 2022 12:17:27 GMT",
"version": "v1"
}
] | 2022-03-14 | [
[
"Golat",
"Sebastian",
""
],
[
"Contaldi",
"Carlo R.",
""
]
] | We introduce a unified formalism to describe both timing and astrometric perturbations induced on astrophysical point sources by gravitational waves using a complex spin field on the sphere. This allows the use of spin-weighted spherical harmonics to analyse "astrochronometric" observables. This approach simplifies the... |
1508.04773 | Vitor Cardoso | Richard Brito, Vitor Cardoso, Hirotada Okawa | Accretion of dark matter by stars | 5 pages, RevTeX 4. Published in Physical Review Letters | Phys. Rev. Lett. 115, 111301 (2015) | 10.1103/PhysRevLett.115.111301 | null | gr-qc astro-ph.CO astro-ph.SR hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Searches for dark matter imprints are one of the most active areas of current
research. We focus here on light fields with mass $m_B$, such as axions and
axion-like candidates. Using perturbative techniques and full-blown nonlinear
Numerical Relativity methods, we show that (i) dark matter can pile up in the
center o... | [
{
"created": "Wed, 19 Aug 2015 20:07:51 GMT",
"version": "v1"
},
{
"created": "Wed, 9 Sep 2015 15:42:41 GMT",
"version": "v2"
}
] | 2015-09-15 | [
[
"Brito",
"Richard",
""
],
[
"Cardoso",
"Vitor",
""
],
[
"Okawa",
"Hirotada",
""
]
] | Searches for dark matter imprints are one of the most active areas of current research. We focus here on light fields with mass $m_B$, such as axions and axion-like candidates. Using perturbative techniques and full-blown nonlinear Numerical Relativity methods, we show that (i) dark matter can pile up in the center of ... |
2303.11696 | Chen Lan | Chen Lan, Hao Yang, Yang Guo and Yan-Gang Miao | Regular black holes: A short topic review | Final version to appear in International Journal of Theoretical
Physics. Major revision, 45 pages, 2 figures, some references have ben added | Int. J. Theor. Phys. 62, 202 (2023) | 10.1007/s10773-023-05454-1 | null | gr-qc hep-th | http://creativecommons.org/licenses/by/4.0/ | The essential singularity in Einstein's gravity can be avoidable if the
preconditions of Penrose's theorem can be bypassed, i.e., if the strong energy
condition is broken in the vicinity of a black hole center. The singularity
mentioned here includes two aspects: (i) the divergence of curvature
invariants, and (ii) t... | [
{
"created": "Tue, 21 Mar 2023 09:33:36 GMT",
"version": "v1"
},
{
"created": "Mon, 27 Mar 2023 12:17:13 GMT",
"version": "v2"
},
{
"created": "Tue, 18 Jul 2023 13:58:01 GMT",
"version": "v3"
},
{
"created": "Wed, 6 Sep 2023 00:46:41 GMT",
"version": "v4"
}
] | 2023-09-07 | [
[
"Lan",
"Chen",
""
],
[
"Yang",
"Hao",
""
],
[
"Guo",
"Yang",
""
],
[
"Miao",
"Yan-Gang",
""
]
] | The essential singularity in Einstein's gravity can be avoidable if the preconditions of Penrose's theorem can be bypassed, i.e., if the strong energy condition is broken in the vicinity of a black hole center. The singularity mentioned here includes two aspects: (i) the divergence of curvature invariants, and (ii) the... |
gr-qc/9507006 | Takahiro Tanaka | Takashi Hamazaki, Misao Sasaki, Takahiro Tanaka and Kazuhiro Yamamoto | Self Excitation of the Tunneling Scalar Field in False Vacuum Decay | 24 pages, uuencoded compressed postscript file | Phys.Rev.D53:2045-2061,1996 | 10.1103/PhysRevD.53.2045 | KUNS 1340, YITP-U-95-27, OU-TAP-21 | gr-qc | null | A method to determine the quantum state of a scalar field after
$O(4)$-symmetric bubble nucleation has been developed recently. The method has
an advantage that it concisely gives us a clear picture of the resultant
quantum state. In particular, one may interpret the excitations as a particle
creation phenomenon just... | [
{
"created": "Tue, 4 Jul 1995 10:51:11 GMT",
"version": "v1"
}
] | 2009-10-09 | [
[
"Hamazaki",
"Takashi",
""
],
[
"Sasaki",
"Misao",
""
],
[
"Tanaka",
"Takahiro",
""
],
[
"Yamamoto",
"Kazuhiro",
""
]
] | A method to determine the quantum state of a scalar field after $O(4)$-symmetric bubble nucleation has been developed recently. The method has an advantage that it concisely gives us a clear picture of the resultant quantum state. In particular, one may interpret the excitations as a particle creation phenomenon just a... |
1705.09141 | Charles Wang | Olivier J. Veraguth, Charles H.-T. Wang | Immirzi parameter without Immirzi ambiguity: Conformal loop quantization
of scalar-tensor gravity | 11 pages, proofread version to be published by Physical Review D | Phys. Rev. D 96, 084011 (2017) | 10.1103/PhysRevD.96.084011 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Conformal loop quantum gravity provides an approach to loop quantization
through an underlying conformal structure i.e. conformally equivalent class of
metrics. The property that general relativity itself has no conformal
invariance is reinstated with a constrained scalar field setting the physical
scale. Conformally... | [
{
"created": "Thu, 25 May 2017 12:09:39 GMT",
"version": "v1"
},
{
"created": "Tue, 5 Sep 2017 13:37:46 GMT",
"version": "v2"
},
{
"created": "Wed, 27 Sep 2017 10:10:35 GMT",
"version": "v3"
}
] | 2017-10-06 | [
[
"Veraguth",
"Olivier J.",
""
],
[
"Wang",
"Charles H. -T.",
""
]
] | Conformal loop quantum gravity provides an approach to loop quantization through an underlying conformal structure i.e. conformally equivalent class of metrics. The property that general relativity itself has no conformal invariance is reinstated with a constrained scalar field setting the physical scale. Conformally e... |
2003.09441 | Maye Elmardi Dr | Amare Abebe, Mudhahir Al Ajmi, Maye Elmardi, Hemwati Nandan, and Noor
ul Sabah | Shear-free conditions of a Chaplygin-Gas-dominated universe | 6 pages, no figures | null | 10.1142/S0219887821501929 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this work, we revisit the shear-free conjecture of general relativity and
show the violation of the well-known shear-free condition for perfect-fluid
spacetimes. It had been shown in previous investigations that, in the general
relativistic framework, the matter congruences of shear-free perfect fluid
spacetimes s... | [
{
"created": "Fri, 20 Mar 2020 18:17:20 GMT",
"version": "v1"
}
] | 2022-07-27 | [
[
"Abebe",
"Amare",
""
],
[
"Ajmi",
"Mudhahir Al",
""
],
[
"Elmardi",
"Maye",
""
],
[
"Nandan",
"Hemwati",
""
],
[
"Sabah",
"Noor ul",
""
]
] | In this work, we revisit the shear-free conjecture of general relativity and show the violation of the well-known shear-free condition for perfect-fluid spacetimes. It had been shown in previous investigations that, in the general relativistic framework, the matter congruences of shear-free perfect fluid spacetimes sho... |
gr-qc/9707062 | Larry Ford | L.H. Ford | Quantum Field Theory in Curved Spacetime | Lectures given at the IX Jorge Andre Swieca Summer School, Campos dos
Jordao, SP, Brazil, February 1997, and at Soochow University, Taipei, Taiwan,
June 1997. To be published in the proceedings of the Swieca School. 44 pages,
Latex, 5 figures, uses epsf | null | null | TUTP-97-9 | gr-qc hep-th | null | These lectures deal with selected aspects of quantum field theory in curved
spacetime including the following topics: (1) Quantization of fields on a
curved background, particle creation by gravitational fields, particle creation
in an expanding universe; moving mirror radiation. (2) The Hawking effect -
particle cre... | [
{
"created": "Wed, 30 Jul 1997 18:09:11 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Ford",
"L. H.",
""
]
] | These lectures deal with selected aspects of quantum field theory in curved spacetime including the following topics: (1) Quantization of fields on a curved background, particle creation by gravitational fields, particle creation in an expanding universe; moving mirror radiation. (2) The Hawking effect - particle creat... |
gr-qc/0309052 | Willians Barreto | L. Herrera and W. Barreto | Evolution of relativistic polytropes in the post--quasi--static regime | 42 pages, 7 figures; accepted for publication in GRG | Gen.Rel.Grav. 36 (2004) 127-150 | 10.1023/B:GERG.0000006698.19527.4d | null | gr-qc astro-ph physics.comp-ph | null | A recently presented method for the study of evolving self-gravitating
relativistic spheres is applied to the description of the evolution of
relativistic polytropes. Two different definitions of relativistic polytrope,
yielding the same Newtonian limit, are considered. Some examples are explicitly
worked out, descri... | [
{
"created": "Tue, 9 Sep 2003 14:17:23 GMT",
"version": "v1"
}
] | 2009-11-10 | [
[
"Herrera",
"L.",
""
],
[
"Barreto",
"W.",
""
]
] | A recently presented method for the study of evolving self-gravitating relativistic spheres is applied to the description of the evolution of relativistic polytropes. Two different definitions of relativistic polytrope, yielding the same Newtonian limit, are considered. Some examples are explicitly worked out, describi... |
gr-qc/9703065 | Kim Sang Pyo | Sang Pyo Kim | Quantum Potential and Cosmological Singularities | LaTeX, 9 Pages, No Figures | Phys.Lett. A236 (1997) 11-15 | 10.1016/S0375-9601(97)00744-5 | SNUTP-97-031 | gr-qc | null | We apply the de Broglie-Bohm interpretation to the Wheeler-DeWitt equation
for the quantum FRW cosmological model with a minimal massless scalar field. We
find that the quantum FRW cosmological model has quantum potential dominated
solutions that avoid the initial and the final cosmological singularities. It
is sugge... | [
{
"created": "Mon, 24 Mar 1997 09:16:49 GMT",
"version": "v1"
}
] | 2009-10-30 | [
[
"Kim",
"Sang Pyo",
""
]
] | We apply the de Broglie-Bohm interpretation to the Wheeler-DeWitt equation for the quantum FRW cosmological model with a minimal massless scalar field. We find that the quantum FRW cosmological model has quantum potential dominated solutions that avoid the initial and the final cosmological singularities. It is suggest... |
1706.06471 | Mohammed Lagraa | M. H. Lagraa and M. Lagraa | On the Hamiltonian formalism of the Tetrad-Gravity with fermions | 29 pages, improved version, references added. version accepted for
publication in General Relativity and Gravitation | Gen Relati gravit (2018) 50-65 | 10.1007/s10714-018-2386-0 | null | gr-qc hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We extend the analysis of the Hamiltonian formalism of the d-dimensional
tetrad-connection gravity to the fermionic field by fixing the non-dynamic part
of the spatial connection to zero. Although the reduced phase space is equipped
with complicated Dirac brackets, the first-class constraints which generate the
diffe... | [
{
"created": "Mon, 19 Jun 2017 00:59:56 GMT",
"version": "v1"
},
{
"created": "Sun, 6 May 2018 12:12:51 GMT",
"version": "v2"
}
] | 2018-06-15 | [
[
"Lagraa",
"M. H.",
""
],
[
"Lagraa",
"M.",
""
]
] | We extend the analysis of the Hamiltonian formalism of the d-dimensional tetrad-connection gravity to the fermionic field by fixing the non-dynamic part of the spatial connection to zero. Although the reduced phase space is equipped with complicated Dirac brackets, the first-class constraints which generate the diffeom... |
2307.14515 | Ehsan Hatefi | Armin Hatefi, Ehsan Hatefi, Roberto J. L\'opez-Sastre | Modeling the complexity of Elliptic Black Hole Solution In 4D Using
Hamiltonian Monte Carlo with Stacked Neural Networks | V2: The first version accepted to be published in Journal of High
Energy Physics (JHEP 2023) | JHEP10(2023)034 | 10.1007/JHEP10(2023)034 | null | gr-qc hep-th physics.comp-ph physics.data-an | http://creativecommons.org/licenses/by/4.0/ | In this paper, we study the black hole solution of self-similar gravitational
collapse in the Einstein-axion-dilaton system for the elliptic class in four
dimensions. The solution is invariant under space-time dilation, which is
combined with internal SL(2,R) transformations. Due to the complex and highly
nonlinear p... | [
{
"created": "Wed, 26 Jul 2023 21:29:42 GMT",
"version": "v1"
},
{
"created": "Thu, 28 Sep 2023 11:11:42 GMT",
"version": "v2"
}
] | 2023-10-06 | [
[
"Hatefi",
"Armin",
""
],
[
"Hatefi",
"Ehsan",
""
],
[
"López-Sastre",
"Roberto J.",
""
]
] | In this paper, we study the black hole solution of self-similar gravitational collapse in the Einstein-axion-dilaton system for the elliptic class in four dimensions. The solution is invariant under space-time dilation, which is combined with internal SL(2,R) transformations. Due to the complex and highly nonlinear pat... |
gr-qc/0608132 | Sushant Ghosh | S. G. Ghosh | Non-spherical collapse of a two fluid star | 7 pages, RevTeX 4, minor corrections | Int.J.Mod.Phys.A23:4245-4254,2008 | 10.1142/S0217751X08041657 | null | gr-qc | null | We obtain the analogue of collapsing Vaidya-like solution to include both a
null fluid and a string fluid, with a linear equation of state ($p_{\bot} = k
\rho$), in non-spherical (plane symmetric and cylindrically symmetric) anti-de
Sitter space-timess. It turns out that the non-spherical collapse of two fluid
in ant... | [
{
"created": "Wed, 30 Aug 2006 10:09:21 GMT",
"version": "v1"
},
{
"created": "Sun, 3 Sep 2006 05:28:21 GMT",
"version": "v2"
}
] | 2009-01-06 | [
[
"Ghosh",
"S. G.",
""
]
] | We obtain the analogue of collapsing Vaidya-like solution to include both a null fluid and a string fluid, with a linear equation of state ($p_{\bot} = k \rho$), in non-spherical (plane symmetric and cylindrically symmetric) anti-de Sitter space-timess. It turns out that the non-spherical collapse of two fluid in anti-... |
gr-qc/9211017 | Jacob D. Bekenstein | Jacob D. Bekenstein (University of California at Santa Barbara and
Hebrew University of Jerusalem) | The Relation between Physical and Gravitational Geometry | 15 pages, TeX | Phys.Rev.D48:3641-3647,1993 | 10.1103/PhysRevD.48.3641 | UCSBTH-92-41 | gr-qc astro-ph hep-th | null | The appearance of two geometries in one and the same gravitational theory is
familiar. Usually, as in the Brans-Dicke theory or in string theory, these are
conformally related Riemannian geometries. Is this the most general relation
between the two geometries allowed by physics ? We study this question by
supposing t... | [
{
"created": "Fri, 13 Nov 1992 18:59:46 GMT",
"version": "v1"
}
] | 2011-07-18 | [
[
"Bekenstein",
"Jacob D.",
"",
"University of California at Santa Barbara and\n Hebrew University of Jerusalem"
]
] | The appearance of two geometries in one and the same gravitational theory is familiar. Usually, as in the Brans-Dicke theory or in string theory, these are conformally related Riemannian geometries. Is this the most general relation between the two geometries allowed by physics ? We study this question by supposing tha... |
1006.5023 | David Lonie | Graham S.Hall and David P.Lonie | Projective Structure and Holonomy in 4-dimensional Lorentz Manifolds | 24 pages | null | 10.1016/j.geomphys.2010.10.007 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | This paper studies the situation when two 4-dimensional Lorentz manifolds
(that is, space-times) admit the same (unparametrised) geodesics, that is, when
they are projectively related. A review of some known results is given and then
the problem is considered further by treating each holonomy type in turn for
the spa... | [
{
"created": "Fri, 25 Jun 2010 16:45:01 GMT",
"version": "v1"
}
] | 2015-05-19 | [
[
"Hall",
"Graham S.",
""
],
[
"Lonie",
"David P.",
""
]
] | This paper studies the situation when two 4-dimensional Lorentz manifolds (that is, space-times) admit the same (unparametrised) geodesics, that is, when they are projectively related. A review of some known results is given and then the problem is considered further by treating each holonomy type in turn for the space... |
1810.06383 | Bobir Toshmatov | Bobir Toshmatov, Zden\v{e}k Stuchl\'ik, Bobomurat Ahmedov | Electromagnetic perturbations of black holes in general relativity
coupled to nonlinear electrodynamics: Polar perturbations | 10 pages, 5 figures, 2 tables | Phys. Rev. D 98, 085021 (2018) | 10.1103/PhysRevD.98.085021 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The \textit{axial} electromagnetic (EM) perturbations of the black hole (BH)
solutions in general relativity coupled to nonlinear electrodynamics (NED) were
studied for both electrically and magnetically charged BHs, assuming that the
EM perturbations do not alter the spacetime geometry in our preceding paper
[Phys. ... | [
{
"created": "Fri, 12 Oct 2018 01:57:14 GMT",
"version": "v1"
},
{
"created": "Tue, 30 Oct 2018 06:35:53 GMT",
"version": "v2"
}
] | 2018-10-31 | [
[
"Toshmatov",
"Bobir",
""
],
[
"Stuchlík",
"Zdeněk",
""
],
[
"Ahmedov",
"Bobomurat",
""
]
] | The \textit{axial} electromagnetic (EM) perturbations of the black hole (BH) solutions in general relativity coupled to nonlinear electrodynamics (NED) were studied for both electrically and magnetically charged BHs, assuming that the EM perturbations do not alter the spacetime geometry in our preceding paper [Phys. Re... |
0802.4249 | Mauricio Bellini | Jesus Romero (Mar del Plata University), Mauricio Bellini (Mar del
Plata University, CONICET) | Geometrical origin of entropy during inflation from the STM theory of
gravity | Final version, to be published in Phys. Lett. B | Phys.Lett.B669:1-3,2008 | 10.1016/j.physletb.2008.09.015 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Using a recently introduced 5D Riemann flat metric, we investigate the
possibility of introducing dissipation in the dynamics of the inflaton field on
an effective 4D FRW metric, in the framework of the STM theory of gravity.
| [
{
"created": "Thu, 28 Feb 2008 17:54:50 GMT",
"version": "v1"
},
{
"created": "Tue, 13 May 2008 15:33:18 GMT",
"version": "v2"
},
{
"created": "Wed, 18 Jun 2008 22:16:04 GMT",
"version": "v3"
},
{
"created": "Fri, 5 Sep 2008 11:31:47 GMT",
"version": "v4"
},
{
"cr... | 2008-11-26 | [
[
"Romero",
"Jesus",
"",
"Mar del Plata University"
],
[
"Bellini",
"Mauricio",
"",
"Mar del\n Plata University, CONICET"
]
] | Using a recently introduced 5D Riemann flat metric, we investigate the possibility of introducing dissipation in the dynamics of the inflaton field on an effective 4D FRW metric, in the framework of the STM theory of gravity. |
1009.4028 | Toshihiro Matsuo | Hikaru Kawai and Toshihiro Matsuo | Gravitational string-membrane hedgehog and internal structure of black
holes | 22 pages, 13 figures, minor revisions, version published in PTP | Prog.Theor.Phys.125:687-708,2011 | 10.1143/PTP.125.687 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate charged Nambu-Goto strings/membrane systems in the
Einstein-Maxwell theory in 3+1 dimensions. We first construct a charged string
hedgehog solution that has a single horizon and conical singularity. Then we
examine a charged membrane system, and give a simple derivation of its self
energy. We find that... | [
{
"created": "Tue, 21 Sep 2010 09:35:03 GMT",
"version": "v1"
},
{
"created": "Tue, 19 Oct 2010 11:16:35 GMT",
"version": "v2"
},
{
"created": "Fri, 3 Dec 2010 04:53:41 GMT",
"version": "v3"
},
{
"created": "Sat, 23 Apr 2011 07:04:01 GMT",
"version": "v4"
}
] | 2011-07-06 | [
[
"Kawai",
"Hikaru",
""
],
[
"Matsuo",
"Toshihiro",
""
]
] | We investigate charged Nambu-Goto strings/membrane systems in the Einstein-Maxwell theory in 3+1 dimensions. We first construct a charged string hedgehog solution that has a single horizon and conical singularity. Then we examine a charged membrane system, and give a simple derivation of its self energy. We find that t... |
2108.09554 | Ernesto Contreras | P. Le\'on, E. Fuenmayor and E. Contreras | Gravitational Cracking of General Relativistic Polytropes: a generalized
scheme | 15 pages; 14 figures. Version published at PRD | Phys. Rev. D, 104, 044053 (2021) | 10.1103/PhysRevD.104.044053 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We discuss the effect that small fluctuations of both local anisotropy and
energy density, may have on the occurrence of cracking in spherical compact
objects satisfying a polytropic equation of state. A systematic scheme to bring
the fluid configurations out of hydrostatic equilibrium is revisited. Various
models of... | [
{
"created": "Sat, 21 Aug 2021 17:37:36 GMT",
"version": "v1"
}
] | 2021-08-24 | [
[
"León",
"P.",
""
],
[
"Fuenmayor",
"E.",
""
],
[
"Contreras",
"E.",
""
]
] | We discuss the effect that small fluctuations of both local anisotropy and energy density, may have on the occurrence of cracking in spherical compact objects satisfying a polytropic equation of state. A systematic scheme to bring the fluid configurations out of hydrostatic equilibrium is revisited. Various models of p... |
1408.1773 | Dirk Puetzfeld | Eva Hackmann, Claus L\"ammerzahl, Yuri N. Obukhov, Dirk Puetzfeld,
Isabell Schaffer | Motion of spinning test bodies in Kerr spacetime | 12 pages, 5 figures, RevTex format | Phys. Rev. D 90, 064035 (2014) | 10.1103/PhysRevD.90.064035 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate the motion of spinning test bodies in General Relativity. By
means of a multipolar approximation method for extended test bodies we derive
the equations of motion, and classify the orbital motion of pole-dipole test
bodies in the equatorial plane of the Kerr geometry. An exact expression for
the perias... | [
{
"created": "Fri, 8 Aug 2014 07:23:16 GMT",
"version": "v1"
},
{
"created": "Tue, 23 Sep 2014 13:53:08 GMT",
"version": "v2"
}
] | 2014-10-01 | [
[
"Hackmann",
"Eva",
""
],
[
"Lämmerzahl",
"Claus",
""
],
[
"Obukhov",
"Yuri N.",
""
],
[
"Puetzfeld",
"Dirk",
""
],
[
"Schaffer",
"Isabell",
""
]
] | We investigate the motion of spinning test bodies in General Relativity. By means of a multipolar approximation method for extended test bodies we derive the equations of motion, and classify the orbital motion of pole-dipole test bodies in the equatorial plane of the Kerr geometry. An exact expression for the periastr... |
gr-qc/0101056 | R. S. Bhalerao | B. Ram (N.M.S.U., Las Cruces, U.S.A.) | The mass quantum and black hole entropy II | 3 plain tex pages | null | null | null | gr-qc hep-th | null | In gr-qc/9908036 [Phys. Lett. A 265 (2000) 1] a new method was given which
naturally led to a quantum of mass equal to twice the Planck mass. In the
present note which, for convenience, we write formally as a continuation of
that paper, we show that with spin one of the mass quantum, the physical
entropy of a rotatin... | [
{
"created": "Mon, 15 Jan 2001 09:38:26 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Ram",
"B.",
"",
"N.M.S.U., Las Cruces, U.S.A."
]
] | In gr-qc/9908036 [Phys. Lett. A 265 (2000) 1] a new method was given which naturally led to a quantum of mass equal to twice the Planck mass. In the present note which, for convenience, we write formally as a continuation of that paper, we show that with spin one of the mass quantum, the physical entropy of a rotating ... |
gr-qc/0001071 | Valery Rupasov | I. E. Bulyzhenkov | How to test vector nature of gravity | 4 pages, Latex | null | null | null | gr-qc | null | The covariant scheme is proposed to couple gravity and electrodynamics in
pseudo-Riemannian four-spaces with electromagnetic connections. Novel dynamics
of the extended charge and electromagnetic dilation-compression of its proper
time can be tested in non-relativistic experiments. The vector equations
acknowledge un... | [
{
"created": "Mon, 24 Jan 2000 06:58:41 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Bulyzhenkov",
"I. E.",
""
]
] | The covariant scheme is proposed to couple gravity and electrodynamics in pseudo-Riemannian four-spaces with electromagnetic connections. Novel dynamics of the extended charge and electromagnetic dilation-compression of its proper time can be tested in non-relativistic experiments. The vector equations acknowledge unif... |
2306.06090 | Beatriz Elizaga Navascu\'es | Beatriz Elizaga Navascu\'es, Guillermo A. Mena Marug\'an and Andr\'es
M\'inguez S\'anchez | Extended phase space quantization of a black hole interior model in Loop
Quantum Cosmology | 16 pages | Phys. Rev. D 108, 106001 (2023) | 10.1103/PhysRevD.108.106001 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Considerable attention has been paid to the study of the quantum geometry of
nonrotating black holes within the framework of Loop Quantum Cosmology. This
interest has been reinvigorated since the introduction of a novel effective
model by Ashtekar, Olmedo, and Singh. Despite recent advances in its
foundation, there a... | [
{
"created": "Fri, 9 Jun 2023 17:51:32 GMT",
"version": "v1"
},
{
"created": "Thu, 2 Nov 2023 15:10:23 GMT",
"version": "v2"
}
] | 2023-11-03 | [
[
"Navascués",
"Beatriz Elizaga",
""
],
[
"Marugán",
"Guillermo A. Mena",
""
],
[
"Sánchez",
"Andrés Mínguez",
""
]
] | Considerable attention has been paid to the study of the quantum geometry of nonrotating black holes within the framework of Loop Quantum Cosmology. This interest has been reinvigorated since the introduction of a novel effective model by Ashtekar, Olmedo, and Singh. Despite recent advances in its foundation, there are... |
1908.03374 | Myungseok Eune | Myungseok Eune and Wontae Kim | Test of quantum atmosphere in the dimensionally reduced Schwarzschild
black hole | 15 pages, 1 figure, published version in Phys. Lett. B | null | 10.1016/j.physletb.2019.135020 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | It has been suggested by Giddings that the origin of Hawking radiation in
black holes is a quantum atmosphere of near-horizon quantum region by
investigating both the total emission rate and the stress tensor of Hawking
radiation. Revisiting this issue in the exactly soluble model of a
dimensionally reduced Schwarzsc... | [
{
"created": "Fri, 9 Aug 2019 09:03:48 GMT",
"version": "v1"
},
{
"created": "Sat, 17 Aug 2019 00:46:23 GMT",
"version": "v2"
},
{
"created": "Fri, 18 Oct 2019 01:20:36 GMT",
"version": "v3"
}
] | 2019-10-21 | [
[
"Eune",
"Myungseok",
""
],
[
"Kim",
"Wontae",
""
]
] | It has been suggested by Giddings that the origin of Hawking radiation in black holes is a quantum atmosphere of near-horizon quantum region by investigating both the total emission rate and the stress tensor of Hawking radiation. Revisiting this issue in the exactly soluble model of a dimensionally reduced Schwarzschi... |
gr-qc/0703118 | Jerome Novak | Silvano Bonazzola (LUTH), Jos\'e-Luis Jaramillo (IAA-CSIC), Jerome
Novak (LUTH) | A fast stroboscopic spectral method for rotating systems in numerical
relativity | 16 pages, 15 figures | Class.Quant.Grav.24:4037-4052,2007 | 10.1088/0264-9381/24/16/005 | null | gr-qc | null | We present a numerical technique for solving evolution equations, as the wave
equation, in the description of rotating astrophysical compact objects in
comoving coordinates, which avoids the problems associated with the light
cylinder. The technique implements a fast spectral matching between two domains
in relative ... | [
{
"created": "Fri, 23 Mar 2007 14:12:21 GMT",
"version": "v1"
},
{
"created": "Fri, 17 Aug 2007 08:47:10 GMT",
"version": "v2"
}
] | 2008-11-26 | [
[
"Bonazzola",
"Silvano",
"",
"LUTH"
],
[
"Jaramillo",
"José-Luis",
"",
"IAA-CSIC"
],
[
"Novak",
"Jerome",
"",
"LUTH"
]
] | We present a numerical technique for solving evolution equations, as the wave equation, in the description of rotating astrophysical compact objects in comoving coordinates, which avoids the problems associated with the light cylinder. The technique implements a fast spectral matching between two domains in relative ro... |
gr-qc/9811087 | Linux User Rhs | O. Bertolami and D.F. Mota | Primordial Magnetic Fields via Spontaneous Breaking of Lorentz
Invariance | Final version to appear in Physics Letters B | Phys.Lett.B455:96-103,1999 | 10.1016/S0370-2693(99)00418-9 | null | gr-qc hep-ph | null | Spontaneous breaking of Lorentz invariance compatible with observational
limits may realistically take place in the context of string theories, possibly
endowing the photon with a mass. In this process the conformal symmetry of the
electromagnetic action is broken allowing for the possibility of generating
large scal... | [
{
"created": "Wed, 25 Nov 1998 17:00:15 GMT",
"version": "v1"
},
{
"created": "Fri, 9 Apr 1999 15:58:45 GMT",
"version": "v2"
}
] | 2016-08-31 | [
[
"Bertolami",
"O.",
""
],
[
"Mota",
"D. F.",
""
]
] | Spontaneous breaking of Lorentz invariance compatible with observational limits may realistically take place in the context of string theories, possibly endowing the photon with a mass. In this process the conformal symmetry of the electromagnetic action is broken allowing for the possibility of generating large scale ... |
1410.6626 | Timothy Adamo | Tim Adamo, E.T. Newman | The Kerr-Newman metric: A Review | 30 pages, 1 figure. v2: typos and some signs fixed | Scholarpedia 9: 31791, 2014 | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The Kerr-Newman metric describes a very special rotating, charged mass and is
the most general of the asymptotically flat stationary 'black hole' solutions
to the Einstein-Maxwell equations of general relativity. We review the
derivation of this metric from the Reissner-Nordstrom solution by means of a
complex transf... | [
{
"created": "Fri, 24 Oct 2014 09:29:15 GMT",
"version": "v1"
},
{
"created": "Mon, 14 Nov 2016 10:28:09 GMT",
"version": "v2"
}
] | 2016-11-15 | [
[
"Adamo",
"Tim",
""
],
[
"Newman",
"E. T.",
""
]
] | The Kerr-Newman metric describes a very special rotating, charged mass and is the most general of the asymptotically flat stationary 'black hole' solutions to the Einstein-Maxwell equations of general relativity. We review the derivation of this metric from the Reissner-Nordstrom solution by means of a complex transfor... |
gr-qc/0203057 | Sergio Dain | S. Dain and O. M. Moreschi | The Goldberg-Sachs theorem in linearized gravity | 6 pages, no figures, LaTeX 2e | J.Math.Phys. 41 (2000) 6296-6299 | 10.1063/1.1288249 | null | gr-qc | null | The Goldberg-Sachs theorem has been very useful in constructing algebraically
special exact solutions of Einstein vacuum equation. Most of the physical
meaningful vacuum exact solutions are algebraically special. We show that the
Goldberg-Sachs theorem is not true in linearized gravity. This is a remarkable
result, w... | [
{
"created": "Fri, 15 Mar 2002 15:16:44 GMT",
"version": "v1"
}
] | 2009-11-07 | [
[
"Dain",
"S.",
""
],
[
"Moreschi",
"O. M.",
""
]
] | The Goldberg-Sachs theorem has been very useful in constructing algebraically special exact solutions of Einstein vacuum equation. Most of the physical meaningful vacuum exact solutions are algebraically special. We show that the Goldberg-Sachs theorem is not true in linearized gravity. This is a remarkable result, whi... |
1812.02744 | Sarp Akcay | Sarp Akcay, Sebastiano Bernuzzi, Francesco Messina, Alessandro Nagar,
N\'estor Ortiz, Piero Rettegno | Effective-one-body multipolar waveform for tidally interacting binary
neutron stars up to merger | 21 pages, 15 figures | Phys. Rev. D 99, 044051 (2019) | 10.1103/PhysRevD.99.044051 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Gravitational-wave astronomy with coalescing binary neutron star sources
requires the availability of gravitational waveforms with tidal effects
accurate up to merger. This article presents an improved version of \TEOBResum,
a nonspinning effective-one-body (EOB) waveform model with enhanced analytical
information in... | [
{
"created": "Thu, 6 Dec 2018 16:56:02 GMT",
"version": "v1"
},
{
"created": "Wed, 12 Dec 2018 15:32:04 GMT",
"version": "v2"
}
] | 2019-03-06 | [
[
"Akcay",
"Sarp",
""
],
[
"Bernuzzi",
"Sebastiano",
""
],
[
"Messina",
"Francesco",
""
],
[
"Nagar",
"Alessandro",
""
],
[
"Ortiz",
"Néstor",
""
],
[
"Rettegno",
"Piero",
""
]
] | Gravitational-wave astronomy with coalescing binary neutron star sources requires the availability of gravitational waveforms with tidal effects accurate up to merger. This article presents an improved version of \TEOBResum, a nonspinning effective-one-body (EOB) waveform model with enhanced analytical information in i... |
2208.01038 | Christoph Schiller | Christoph Schiller | From maximum force to physics in 9 lines and towards relativistic
quantum gravity | Published version, 13 pages, 1 table, with the ultimate data
accessibility statement | Zeitschrift f. Naturforschung A, 2022 | 10.1515/zna-2022-0243 | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | A compact summary of present fundamental physics is given and evaluated. Its
9 lines describe all observations exactly and contain both general relativity
and the standard model of particle physics. Their precise agreement with
experiments, in combination with their extreme simplicity and their internal
consistency, ... | [
{
"created": "Sun, 31 Jul 2022 14:45:34 GMT",
"version": "v1"
},
{
"created": "Thu, 4 Aug 2022 16:57:35 GMT",
"version": "v2"
},
{
"created": "Sun, 27 Nov 2022 06:49:23 GMT",
"version": "v3"
}
] | 2022-11-29 | [
[
"Schiller",
"Christoph",
""
]
] | A compact summary of present fundamental physics is given and evaluated. Its 9 lines describe all observations exactly and contain both general relativity and the standard model of particle physics. Their precise agreement with experiments, in combination with their extreme simplicity and their internal consistency, su... |
1512.01395 | Emil Nissimov | Eduardo Guendelman, Emil Nissimov and Svetlana Pacheva | Metric-Independent Spacetime Volume-Forms and Dark Energy/Dark Matter
Unification | 12 pages, to be published in the Proceedings of "XI International
Workshop on Lie Theory and Its Applications in Physics", Springer Proceedings
in Mathematics and Statistics, ed. V. Dobrev, Springer (2016) | Springer Proceedings in Mathematics and Statistics, vol.191 (2016)
261-273 | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The method of non-Riemannian (metric-independent) spacetime volume-forms
(alternative generally-covariant integration measure densities) is applied to
construct a modified model of gravity coupled to a single scalar field
providing an explicit unification of dark energy (as a dynamically generated
cosmological consta... | [
{
"created": "Fri, 4 Dec 2015 12:58:24 GMT",
"version": "v1"
}
] | 2017-08-01 | [
[
"Guendelman",
"Eduardo",
""
],
[
"Nissimov",
"Emil",
""
],
[
"Pacheva",
"Svetlana",
""
]
] | The method of non-Riemannian (metric-independent) spacetime volume-forms (alternative generally-covariant integration measure densities) is applied to construct a modified model of gravity coupled to a single scalar field providing an explicit unification of dark energy (as a dynamically generated cosmological constant... |
1608.03918 | Sebasti\'an Bahamonde | Sebastian Bahamonde, Ugur Camci, Salvatore Capozziello and Mubasher
Jamil | Scalar-Tensor Teleparallel Wormholes by Noether Symmetries | Slightly updated version. Accepted for publication in PRD | Phys. Rev. D 94, 084042 (2016) | 10.1103/PhysRevD.94.084042 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A gravitational theory of a scalar field non-minimally coupled with torsion
and boundary term is considered with the aim to construct Lorentzian wormholes.
Geometrical parameters including shape and redshift functions are obtained for
these solutions. We adopt the formalism of Noether Gauge Symmetry Approach in
order... | [
{
"created": "Fri, 12 Aug 2016 22:17:51 GMT",
"version": "v1"
},
{
"created": "Fri, 21 Oct 2016 13:53:25 GMT",
"version": "v2"
}
] | 2016-10-28 | [
[
"Bahamonde",
"Sebastian",
""
],
[
"Camci",
"Ugur",
""
],
[
"Capozziello",
"Salvatore",
""
],
[
"Jamil",
"Mubasher",
""
]
] | A gravitational theory of a scalar field non-minimally coupled with torsion and boundary term is considered with the aim to construct Lorentzian wormholes. Geometrical parameters including shape and redshift functions are obtained for these solutions. We adopt the formalism of Noether Gauge Symmetry Approach in order t... |
2004.00244 | Soumya Chakrabarti | Soumya Chakrabarti | A Collapsing Distribution of Axion Dark Matter | In Communication. Comments are welcome | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The manuscript deals with an interacting scalar field that mimics the
evolution of the so-called Axion Scalar Dark Matter or Axion like particles
with ultra-light masses. It is discussed that such a scalar alongwith an
ordinary fluid description can collapse under strong gravity. The end state of
the collapse depends... | [
{
"created": "Wed, 1 Apr 2020 05:59:08 GMT",
"version": "v1"
}
] | 2020-04-02 | [
[
"Chakrabarti",
"Soumya",
""
]
] | The manuscript deals with an interacting scalar field that mimics the evolution of the so-called Axion Scalar Dark Matter or Axion like particles with ultra-light masses. It is discussed that such a scalar alongwith an ordinary fluid description can collapse under strong gravity. The end state of the collapse depends o... |
gr-qc/0104004 | Irina Radinschi | I.Radinschi | On the Bergmann Energy-Momentum Complex of a Charged Regular Black Hole | LaTex, 1 figure | null | null | null | gr-qc | null | We use the Bergmann energy-momentum complex to calculate the energy of a
charged regular black hole. The energy distribution is the same as we obtained
in the Einstein prescription. Also, we get the expression of the energy in the
Bergmann prescription for a general spherically symmetric space-time of the
Kerr-Schild... | [
{
"created": "Mon, 2 Apr 2001 11:27:02 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Radinschi",
"I.",
""
]
] | We use the Bergmann energy-momentum complex to calculate the energy of a charged regular black hole. The energy distribution is the same as we obtained in the Einstein prescription. Also, we get the expression of the energy in the Bergmann prescription for a general spherically symmetric space-time of the Kerr-Schild c... |
0905.4547 | Ka\'ca Bradonji\'c | Kaca Bradonjic | Massless spacetime: On spacetime geometry above the electroweak symmetry
breaking scale | 5 pages, 2 figures | null | null | null | gr-qc hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | One of the deepest insights from the general theory of relativity is the
relational nature of spacetime. While it is a generally agreed on that the
nature of spacetime must be drastically different at the Planck scale, it has
been a common practice to assume a full pseudo-Riemannian geometry of spacetime
no matter wh... | [
{
"created": "Thu, 28 May 2009 13:40:02 GMT",
"version": "v1"
}
] | 2009-05-30 | [
[
"Bradonjic",
"Kaca",
""
]
] | One of the deepest insights from the general theory of relativity is the relational nature of spacetime. While it is a generally agreed on that the nature of spacetime must be drastically different at the Planck scale, it has been a common practice to assume a full pseudo-Riemannian geometry of spacetime no matter what... |
0708.3674 | Burin Gumjudpai | Burin Gumjudpai (TPTP Naresuan U.) | Power-law expansion cosmology in Schr\"odinger-type formulation | 9 pages, 5 figures, Revtex 4, accepted by Astroparticle Physics, more
Ref. added | Astropart.Phys.30:186-191,2008 | 10.1016/j.astropartphys.2008.09.006 | null | gr-qc astro-ph hep-th quant-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate non-linear Schr\"{o}dinger-type formulation of cosmology of
which our cosmological system is a general relativistic FRLW universe
containing canonical scalar field under arbitrary potential and a barotropic
fluid with arbitrary spatial curvatures. We extend the formulation to include
phantom field case... | [
{
"created": "Mon, 27 Aug 2007 20:04:18 GMT",
"version": "v1"
},
{
"created": "Thu, 18 Oct 2007 20:37:43 GMT",
"version": "v2"
},
{
"created": "Fri, 5 Sep 2008 18:16:21 GMT",
"version": "v3"
},
{
"created": "Mon, 8 Sep 2008 22:16:32 GMT",
"version": "v4"
}
] | 2008-12-18 | [
[
"Gumjudpai",
"Burin",
"",
"TPTP Naresuan U."
]
] | We investigate non-linear Schr\"{o}dinger-type formulation of cosmology of which our cosmological system is a general relativistic FRLW universe containing canonical scalar field under arbitrary potential and a barotropic fluid with arbitrary spatial curvatures. We extend the formulation to include phantom field case a... |
gr-qc/0503040 | Nicos Pelavas | N. Pelavas, A. Coley, R. Milson, V. Pravda, A. Pravdov\'a | VSI_i spacetimes and the epsilon-property | To appear in JMP | J.Math.Phys.46:063501,2005 | 10.1063/1.1904707 | null | gr-qc | null | We investigate Lorentzian spacetimes where all zeroth and first order
curvature invariants vanish and discuss how this class differs from the one
where all curvature invariants vanish (VSI). We show that for VSI spacetimes
all components of the Riemann tensor and its derivatives up to some fixed order
can be made arb... | [
{
"created": "Wed, 9 Mar 2005 18:46:27 GMT",
"version": "v1"
}
] | 2016-08-16 | [
[
"Pelavas",
"N.",
""
],
[
"Coley",
"A.",
""
],
[
"Milson",
"R.",
""
],
[
"Pravda",
"V.",
""
],
[
"Pravdová",
"A.",
""
]
] | We investigate Lorentzian spacetimes where all zeroth and first order curvature invariants vanish and discuss how this class differs from the one where all curvature invariants vanish (VSI). We show that for VSI spacetimes all components of the Riemann tensor and its derivatives up to some fixed order can be made arbit... |
1912.00792 | Christof Wetterich | C. Wetterich | The great emptiness at the beginning of the Universe | Additional remarks on inhomogeneities, 8 pages | null | 10.1016/j.physletb.2021.136355 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The great emptiness is a possible beginning of the Universe in the infinite
past of physical time. For the epoch of great emptiness particles are extremely
rare and effectively massless. Only expectation values of fields and average
fluctuations characterize the lightlike vacuum of this empty Universe. The
physical c... | [
{
"created": "Fri, 29 Nov 2019 12:28:59 GMT",
"version": "v1"
},
{
"created": "Mon, 23 Mar 2020 09:51:52 GMT",
"version": "v2"
},
{
"created": "Thu, 10 Dec 2020 13:54:43 GMT",
"version": "v3"
},
{
"created": "Fri, 30 Apr 2021 13:58:44 GMT",
"version": "v4"
}
] | 2021-05-12 | [
[
"Wetterich",
"C.",
""
]
] | The great emptiness is a possible beginning of the Universe in the infinite past of physical time. For the epoch of great emptiness particles are extremely rare and effectively massless. Only expectation values of fields and average fluctuations characterize the lightlike vacuum of this empty Universe. The physical con... |
gr-qc/9504024 | Ganesh Devaraj | Ganesh Devaraj and Martin B. Einhorn | Interacting scalar fields in de Sitter space | 12 pages, Latex file, uses epsf.sty, 2 figures in a uufile. Revision
of the infrared limit in the symmetric case. Conclusions remain unchanged | null | null | UM-TH-95-10 | gr-qc hep-th | null | We investigate the massless $\lambda \phi^4$ theory in de~Sitter space. It is
unnatural to assume a minimally coupled interacting scalar field, since $\xi=0$
is not a fixed point of the renormalization group once interactions are
included. In fact, the only case where perturbation theory can be trusted is
when the fi... | [
{
"created": "Mon, 17 Apr 1995 02:06:31 GMT",
"version": "v1"
},
{
"created": "Mon, 12 Jun 1995 22:01:01 GMT",
"version": "v2"
}
] | 2008-02-03 | [
[
"Devaraj",
"Ganesh",
""
],
[
"Einhorn",
"Martin B.",
""
]
] | We investigate the massless $\lambda \phi^4$ theory in de~Sitter space. It is unnatural to assume a minimally coupled interacting scalar field, since $\xi=0$ is not a fixed point of the renormalization group once interactions are included. In fact, the only case where perturbation theory can be trusted is when the fiel... |
1612.07383 | Cyril Malyshev | Cyril Malyshev | The Einstein-like field theory and the dislocations with finite-sized
core | 10 pages, extended version of article in: Proceedings of The
Thirteenth Marcel Grossmann Meeting on Recent Developments in Theoretical and
Experimental General Relativity, Astrophysics, and Relativistic Field
Theories (Stockholm University, Stockholm, July 1-7, 2012), Eds., R. T.
Jantzen, K. Rosquist, Series Ed... | null | 10.1142/9194 | null | gr-qc cond-mat.mes-hall cond-mat.stat-mech | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Einstein-like Lagrangian field theory is developed to describe elastic solid
containing dislocations with finite-sized core. The framework of the
Riemann-Cartan geometry in three dimensions is used, and the core self-energy
is expressed by the translational part of the general Lagrangian quadratic in
torsion and curv... | [
{
"created": "Wed, 21 Dec 2016 23:19:15 GMT",
"version": "v1"
},
{
"created": "Tue, 28 Mar 2017 13:44:23 GMT",
"version": "v2"
}
] | 2019-01-16 | [
[
"Malyshev",
"Cyril",
""
]
] | Einstein-like Lagrangian field theory is developed to describe elastic solid containing dislocations with finite-sized core. The framework of the Riemann-Cartan geometry in three dimensions is used, and the core self-energy is expressed by the translational part of the general Lagrangian quadratic in torsion and curvat... |
2002.01881 | Alexander B. Balakin | Alexander B. Balakin and Dmitry E. Groshev | Fingerprints of the cosmological constant: Folds in the profiles of the
axionic dark matter distribution in a dyon exterior | 12 pages, 5 figures, revised version published in the Special Issue
of the Journal Symmetry | Symmetry, 2020, 12(3), 455 | 10.3390/sym12030455 | null | gr-qc astro-ph.HE hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider the magnetic monopole in the axionic dark matter environment
(axionic dyon) in the framework of the Reissner - Nordstr\"om - de Sitter
model. Our aim is to study the distribution of the pseudoscalar (axion) and
electric fields near the so-called folds, which are characterized by the
profiles with the cent... | [
{
"created": "Wed, 5 Feb 2020 17:38:27 GMT",
"version": "v1"
},
{
"created": "Sun, 22 Mar 2020 15:29:04 GMT",
"version": "v2"
}
] | 2020-03-24 | [
[
"Balakin",
"Alexander B.",
""
],
[
"Groshev",
"Dmitry E.",
""
]
] | We consider the magnetic monopole in the axionic dark matter environment (axionic dyon) in the framework of the Reissner - Nordstr\"om - de Sitter model. Our aim is to study the distribution of the pseudoscalar (axion) and electric fields near the so-called folds, which are characterized by the profiles with the centra... |
0812.1485 | Lorenzo Iorio | Lorenzo Iorio | Juno, the angular momentum of Jupiter and the Lense-Thirring effect | LaTex, 28 pages, 3 figures, 2 tables. To appear in New Astronomy (NA) | New Astron.15: 554-560,2010; Erratum-ibid.16:17-18,2011 | 10.1016/j.newast.2010.01.004 10.1016/j.newast.2010.06.004 | null | gr-qc astro-ph physics.space-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The recently approved Juno mission will orbit Jupiter for one year in a
highly eccentric (r_min=1.06R_Jup, r_max=39R_Jup) polar orbit (i=90 deg) to
accurately map, among other things, the jovian magnetic and gravitational
fields. Such an orbital configuration yields an ideal situation, in principle,
to attempt a meas... | [
{
"created": "Mon, 8 Dec 2008 14:03:58 GMT",
"version": "v1"
},
{
"created": "Fri, 23 Jan 2009 08:27:35 GMT",
"version": "v2"
},
{
"created": "Tue, 19 Jan 2010 20:02:47 GMT",
"version": "v3"
}
] | 2014-11-18 | [
[
"Iorio",
"Lorenzo",
""
]
] | The recently approved Juno mission will orbit Jupiter for one year in a highly eccentric (r_min=1.06R_Jup, r_max=39R_Jup) polar orbit (i=90 deg) to accurately map, among other things, the jovian magnetic and gravitational fields. Such an orbital configuration yields an ideal situation, in principle, to attempt a measur... |
1306.2987 | Mercedes Martin-Benito | Bianca Dittrich, Mercedes Mart\'in-Benito, Erik Schnetter | Coarse graining of spin net models: dynamics of intertwiners | 33 pages, 17 figures | New J. Phys. 15, 103004, 2013 | 10.1088/1367-2630/15/10/103004 | null | gr-qc cond-mat.str-el hep-lat quant-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Spin foams are models of quantum gravity and therefore quantum space time. A
key open issue is to determine the possible continuum phases of these models.
Progress on this issue has been prohibited by the complexity of the full
four--dimensional models. We consider here simplified analogue models, so
called spin nets... | [
{
"created": "Wed, 12 Jun 2013 22:49:37 GMT",
"version": "v1"
}
] | 2015-02-16 | [
[
"Dittrich",
"Bianca",
""
],
[
"Martín-Benito",
"Mercedes",
""
],
[
"Schnetter",
"Erik",
""
]
] | Spin foams are models of quantum gravity and therefore quantum space time. A key open issue is to determine the possible continuum phases of these models. Progress on this issue has been prohibited by the complexity of the full four--dimensional models. We consider here simplified analogue models, so called spin nets, ... |
2210.07799 | Benrong Mu | Rui Yin, Jing Liang and Benrong Mu | Chaos bound and its violation in the torus-like black hole | 9 pages, 1 figures, 2 tables | null | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper, we have studied the variation of the chaos bound in two
regions of the torus-like black hole, i.e., the region close to the black hole
horizon and the region at a certain distance from the black hole horizon. The
angular momentum of the particle affects the effective potential and influences
the magnit... | [
{
"created": "Thu, 13 Oct 2022 13:47:10 GMT",
"version": "v1"
}
] | 2022-10-17 | [
[
"Yin",
"Rui",
""
],
[
"Liang",
"Jing",
""
],
[
"Mu",
"Benrong",
""
]
] | In this paper, we have studied the variation of the chaos bound in two regions of the torus-like black hole, i.e., the region close to the black hole horizon and the region at a certain distance from the black hole horizon. The angular momentum of the particle affects the effective potential and influences the magnitud... |
1608.00340 | Yuya Kuwahara | Yuya Kuwahara, Ayaka Shoda, Kazunari Eda, and Masaki Ando | Search for a stochastic gravitational wave background at 1-5 Hz with
Torsion-bar Antenna | 5 pages, 6 figures | Phys. Rev. D 94, 042003 (2016) | 10.1103/PhysRevD.94.042003 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We set the first upper limit on the stochastic gravitational wave (GW)
background in the frequency range of $1-5\,\mathrm{Hz}$ using a Torsion-bar
Antenna (TOBA). A TOBA is a GW detector designed for the detection of low
frequency GWs on the ground, with two orthogonal test masses rotated by the
incident GWs. We perf... | [
{
"created": "Mon, 1 Aug 2016 07:39:53 GMT",
"version": "v1"
}
] | 2016-08-31 | [
[
"Kuwahara",
"Yuya",
""
],
[
"Shoda",
"Ayaka",
""
],
[
"Eda",
"Kazunari",
""
],
[
"Ando",
"Masaki",
""
]
] | We set the first upper limit on the stochastic gravitational wave (GW) background in the frequency range of $1-5\,\mathrm{Hz}$ using a Torsion-bar Antenna (TOBA). A TOBA is a GW detector designed for the detection of low frequency GWs on the ground, with two orthogonal test masses rotated by the incident GWs. We perfor... |
2310.11919 | Nicolas Lecoeur | Athanasios Bakopoulos, Christos Charmousis, Panagiota Kanti, Nicolas
Lecoeur, Theodoros Nakas | Black holes with primary scalar hair | 12 pages, 4 figures | null | 10.1103/PhysRevD.109.024032 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present explicit black holes endowed with primary scalar hair within the
shift-symmetric subclass of Beyond Horndeski theories. These solutions depend,
in addition to the conventional mass parameter, on a second free parameter
encoding primary scalar hair. The properties and characteristics of the
solutions at han... | [
{
"created": "Wed, 18 Oct 2023 12:20:40 GMT",
"version": "v1"
}
] | 2024-02-02 | [
[
"Bakopoulos",
"Athanasios",
""
],
[
"Charmousis",
"Christos",
""
],
[
"Kanti",
"Panagiota",
""
],
[
"Lecoeur",
"Nicolas",
""
],
[
"Nakas",
"Theodoros",
""
]
] | We present explicit black holes endowed with primary scalar hair within the shift-symmetric subclass of Beyond Horndeski theories. These solutions depend, in addition to the conventional mass parameter, on a second free parameter encoding primary scalar hair. The properties and characteristics of the solutions at hand ... |
gr-qc/0605010 | Gregory L. Comer | N. Andersson and G.L. Comer | Relativistic Fluid Dynamics: Physics for Many Different Scales | Invited review for Living Reviews in Relativity, 8 figures, uses
livrevrel.bst, epubtk.sty | LivingRev.Rel.10:1,2005 | 10.12942/lrr-2007-1 | null | gr-qc | null | The relativistic fluid is a highly successful model used to describe the
dynamics of many-particle, relativistic systems. It takes as input basic
physics from microscopic scales and yields as output predictions of bulk,
macroscopic motion. By inverting the process, an understanding of bulk features
can lead to insigh... | [
{
"created": "Mon, 1 May 2006 14:26:11 GMT",
"version": "v1"
},
{
"created": "Tue, 2 May 2006 09:24:54 GMT",
"version": "v2"
}
] | 2015-06-25 | [
[
"Andersson",
"N.",
""
],
[
"Comer",
"G. L.",
""
]
] | The relativistic fluid is a highly successful model used to describe the dynamics of many-particle, relativistic systems. It takes as input basic physics from microscopic scales and yields as output predictions of bulk, macroscopic motion. By inverting the process, an understanding of bulk features can lead to insight ... |
1904.12913 | Yuri Bonder | Christian Peterson and Yuri Bonder | Symmetries and conserved quantities with arbitrary torsion: A
generalization of Killing's theorem | 5 pages. Comments welcomed | Modern Physics Letters A 33, 2050052 (2020) | 10.1142/S0217732320500522 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | When spacetime torsion is present, geodesics and autoparallels generically do
not coincide. In this work, the well-known method that uses Killing vectors to
solve the geodesic equations is generalized for autoparallels. The main
definition is that of T-Killing vectors: vector fields such that, when their
index is low... | [
{
"created": "Mon, 29 Apr 2019 19:17:09 GMT",
"version": "v1"
}
] | 2019-12-02 | [
[
"Peterson",
"Christian",
""
],
[
"Bonder",
"Yuri",
""
]
] | When spacetime torsion is present, geodesics and autoparallels generically do not coincide. In this work, the well-known method that uses Killing vectors to solve the geodesic equations is generalized for autoparallels. The main definition is that of T-Killing vectors: vector fields such that, when their index is lower... |
2204.01523 | Muhammad Sharif | M. Sharif and Saba Naz | Stable Charged Gravastar Model in ${f}(\mathfrak{R},\textbf{T}^{2})$
Gravity with Conformal Motion | 22 pages, 4 figures, to appear in EPJP | Eur. Phys. J. Plus. 137(2022)421 | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | This paper investigates the influence of charge on physical features of
gravastars in the framework of energy-momentum squared gravity. A gravastar is
an alternate model to a black hole that comprises of three distinct regions,
namely the intermediate shell, inner and outer sectors. Different values of the
barotropic... | [
{
"created": "Fri, 1 Apr 2022 14:49:35 GMT",
"version": "v1"
}
] | 2022-04-06 | [
[
"Sharif",
"M.",
""
],
[
"Naz",
"Saba",
""
]
] | This paper investigates the influence of charge on physical features of gravastars in the framework of energy-momentum squared gravity. A gravastar is an alternate model to a black hole that comprises of three distinct regions, namely the intermediate shell, inner and outer sectors. Different values of the barotropic e... |
1108.2654 | Edward Rakhmetov R | Edward Rakhmetov, Sergey Keyzerov | Some exact solutions in M{\o}ller gravity | 5 pages; PoS 084, 2010 | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present a short introduction to the M{\o}ller gravity theory and study the
Schwarzschild solution and self-consistent spontaneous compactification
solutions in Kaluza-Klein theories, which can be obtained in the framework of
this interesting generalization of General Relativity.
| [
{
"created": "Fri, 12 Aug 2011 16:17:38 GMT",
"version": "v1"
},
{
"created": "Sun, 27 Nov 2011 13:01:47 GMT",
"version": "v2"
}
] | 2011-11-29 | [
[
"Rakhmetov",
"Edward",
""
],
[
"Keyzerov",
"Sergey",
""
]
] | We present a short introduction to the M{\o}ller gravity theory and study the Schwarzschild solution and self-consistent spontaneous compactification solutions in Kaluza-Klein theories, which can be obtained in the framework of this interesting generalization of General Relativity. |
1807.02511 | Michael Katz | Michael L. Katz, Shane L. Larson | Evaluating Black Hole Detectability with LISA | 11 pages, 6 figures | null | 10.1093/mnras/sty3321 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We conduct an analysis of the measurement abilities of distinctive LISA
detector designs, examining the influence of LISA's low-frequency performance
on the detection and characterization of massive black hole binaries. We are
particularly interested in LISA's ability to measure massive black holes
merging at frequen... | [
{
"created": "Fri, 6 Jul 2018 17:58:20 GMT",
"version": "v1"
},
{
"created": "Sat, 17 Nov 2018 22:08:27 GMT",
"version": "v2"
},
{
"created": "Wed, 6 Mar 2019 11:28:38 GMT",
"version": "v3"
}
] | 2019-03-07 | [
[
"Katz",
"Michael L.",
""
],
[
"Larson",
"Shane L.",
""
]
] | We conduct an analysis of the measurement abilities of distinctive LISA detector designs, examining the influence of LISA's low-frequency performance on the detection and characterization of massive black hole binaries. We are particularly interested in LISA's ability to measure massive black holes merging at frequenci... |
2004.09708 | Dmitriy I. Podolskiy | Dmitriy I. Podolskiy, Andrei O. Barvinsky and Robert Lanza | Parisi-Sourlas-like dimensional reduction of quantum gravity in the
presence of observers | 29 pages, 1 figure; discussion extended | null | 10.1088/1475-7516/2021/05/048 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | One of the sources of incompatibility between general relativity and quantum
mechanics is perturbative non-renormalizability of quantum gravity in $3+1$
spacetime dimensions. Here, we show that in the presence of disorder induced by
random networks of observers measuring covariant quantities (such as scalar
curvature... | [
{
"created": "Tue, 21 Apr 2020 01:50:16 GMT",
"version": "v1"
},
{
"created": "Sun, 7 Jun 2020 01:27:52 GMT",
"version": "v2"
},
{
"created": "Sun, 30 Aug 2020 20:37:12 GMT",
"version": "v3"
}
] | 2021-05-26 | [
[
"Podolskiy",
"Dmitriy I.",
""
],
[
"Barvinsky",
"Andrei O.",
""
],
[
"Lanza",
"Robert",
""
]
] | One of the sources of incompatibility between general relativity and quantum mechanics is perturbative non-renormalizability of quantum gravity in $3+1$ spacetime dimensions. Here, we show that in the presence of disorder induced by random networks of observers measuring covariant quantities (such as scalar curvature) ... |
gr-qc/0402058 | Masayuki Tanimoto | Masayuki Tanimoto | Harmonic Analysis of Linear Fields on the Nilgeometric Cosmological
Model | 28 pages, no figures, revised version to appear in JMP | J.Math.Phys. 45 (2004) 4896-4919; Erratum-ibid. 46 (2005) 019902 | 10.1063/1.1811373 | null | gr-qc hep-th math-ph math.MP | null | To analyze linear field equations on a locally homogeneous spacetime by means
of separation of variables, it is necessary to set up appropriate harmonics
according to its symmetry group. In this paper, the harmonics are presented for
a spatially compactified Bianchi II cosmological model -- the nilgeometric
model. Ba... | [
{
"created": "Thu, 12 Feb 2004 17:49:58 GMT",
"version": "v1"
},
{
"created": "Sat, 4 Sep 2004 18:24:44 GMT",
"version": "v2"
}
] | 2016-08-31 | [
[
"Tanimoto",
"Masayuki",
""
]
] | To analyze linear field equations on a locally homogeneous spacetime by means of separation of variables, it is necessary to set up appropriate harmonics according to its symmetry group. In this paper, the harmonics are presented for a spatially compactified Bianchi II cosmological model -- the nilgeometric model. Base... |
2308.09032 | Zhenwei Lyu | Zhenwei Lyu and Michael LaHaye and Huan Yang and B\'eatrice Bonga | Probing Spin-Induced Quadrupole Moments in Precessing Compact Binaries | 15 pages, 11 figures, 2 tables | Phys. Rev. D 109, 064081 (2024) | 10.1103/PhysRevD.109.064081 | LIGO-P2300223 | gr-qc astro-ph.HE | http://creativecommons.org/licenses/by/4.0/ | Spin-induced quadrupole moments provide an important characterization of
compact objects, such as black holes, neutron stars and black hole mimickers
inspired by additional fields and/or modified theories of gravity. Black holes
in general relativity have a specific spin-induced quadrupole moment, with
other objects ... | [
{
"created": "Thu, 17 Aug 2023 15:14:56 GMT",
"version": "v1"
},
{
"created": "Thu, 28 Mar 2024 04:21:42 GMT",
"version": "v2"
}
] | 2024-03-29 | [
[
"Lyu",
"Zhenwei",
""
],
[
"LaHaye",
"Michael",
""
],
[
"Yang",
"Huan",
""
],
[
"Bonga",
"Béatrice",
""
]
] | Spin-induced quadrupole moments provide an important characterization of compact objects, such as black holes, neutron stars and black hole mimickers inspired by additional fields and/or modified theories of gravity. Black holes in general relativity have a specific spin-induced quadrupole moment, with other objects po... |
2107.07879 | John Klauder | John R. Klauder | Let Loop Quantum Gravity and Affine Quantum Gravity Examine Each Other | 12 pages; loop quantum gravity is considered along with affine
quantum gravity | Journal of High Energy Physics, Gravitation and Cosmology > Vol.7
No.3, July 2021 | 10.4236/jhepgc.2021.73061 | null | gr-qc quant-ph | http://creativecommons.org/licenses/by/4.0/ | Loop Quantum Gravity is widely developed using canonical quantization in an
effort to find the correct quantization for gravity. Affine quantization, which
is like canonical quantization augmented bounded in one orientation, e.g., a
strictly positive coordinate. We open discussion using canonical and affine
quantizat... | [
{
"created": "Sun, 23 May 2021 00:44:28 GMT",
"version": "v1"
}
] | 2021-07-19 | [
[
"Klauder",
"John R.",
""
]
] | Loop Quantum Gravity is widely developed using canonical quantization in an effort to find the correct quantization for gravity. Affine quantization, which is like canonical quantization augmented bounded in one orientation, e.g., a strictly positive coordinate. We open discussion using canonical and affine quantizatio... |
1302.1290 | Crucean Cosmin | Cosmin Crucean | Fermion production by a dependent of time electric field in de Sitter
universe | 20 pages, 9 figures | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Fermion production by the electric field of a charge on de Sitter expanding
universe is analyzed. The amplitude and probability of pair production are
computed. We obtain from our calculations that the modulus of the momentum is
no longer conserved and that there are probabilities for production processes
where the h... | [
{
"created": "Wed, 6 Feb 2013 09:03:07 GMT",
"version": "v1"
},
{
"created": "Wed, 3 Jul 2013 14:34:50 GMT",
"version": "v2"
}
] | 2013-07-04 | [
[
"Crucean",
"Cosmin",
""
]
] | Fermion production by the electric field of a charge on de Sitter expanding universe is analyzed. The amplitude and probability of pair production are computed. We obtain from our calculations that the modulus of the momentum is no longer conserved and that there are probabilities for production processes where the hel... |
2212.10993 | Jan Ger\v{s}l | Jan Ger\v{s}l | Relativistic theory for time and frequency transfer through flowing
media with an application to the atmosphere of Earth | 25 pages, 5 figures | A&A 673, A144 (2023) | 10.1051/0004-6361/202345994 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Several space missions that will use atomic clocks on board of an
Earth-orbiting satellite are planned for the near future, such as the Atomic
Clock Ensemble in Space (ACES) or the Space Optical Clock on the ISS (I-SOC).
The increasing accuracies of the developed clocks and of the links connecting
them with ground st... | [
{
"created": "Wed, 21 Dec 2022 13:01:38 GMT",
"version": "v1"
},
{
"created": "Tue, 11 Apr 2023 11:32:36 GMT",
"version": "v2"
},
{
"created": "Mon, 12 Jun 2023 11:31:24 GMT",
"version": "v3"
}
] | 2023-06-13 | [
[
"Geršl",
"Jan",
""
]
] | Several space missions that will use atomic clocks on board of an Earth-orbiting satellite are planned for the near future, such as the Atomic Clock Ensemble in Space (ACES) or the Space Optical Clock on the ISS (I-SOC). The increasing accuracies of the developed clocks and of the links connecting them with ground stat... |
gr-qc/9506065 | null | Giampiero Esposito | Local Supersymmetry in One-Loop Quantum Cosmology | 23 pages, plain-tex, recently appearing in Int. J. Mod. Phys. D,
volume 3, pages 593-607, September 1994. The Author would like to apologize
for the delay in circulating the paper, due to technical problems now fixed | Int.J.Mod.Phys. D3 (1994) 593-608 | 10.1142/S0218271894000733 | DSF 93/9 | gr-qc | null | The contribution of physical degrees of freedom to the one-loop amplitudes of
Euclidean supergravity is here evaluated in the case of flat Euclidean
backgrounds bounded by a three-sphere, recently considered in perturbative
quantum cosmology. The physical degrees of freedom (denoted by PDF) are picked
out by imposing... | [
{
"created": "Wed, 28 Jun 1995 06:21:43 GMT",
"version": "v1"
}
] | 2015-06-25 | [
[
"Esposito",
"Giampiero",
""
]
] | The contribution of physical degrees of freedom to the one-loop amplitudes of Euclidean supergravity is here evaluated in the case of flat Euclidean backgrounds bounded by a three-sphere, recently considered in perturbative quantum cosmology. The physical degrees of freedom (denoted by PDF) are picked out by imposing t... |
1208.4223 | Graeme Gossel | A. F. Spencer-Smith, G. H. Gossel, J. C. Berengut, V. V. Flambaum | Bound states of spin-half particles in a static gravitational field
close to the black hole field | 16 pages, 6 Figures. Submitted to General Relativity and Gravitation | Gen. Rel. Gravit., 45, 613, (2013) | 10.1007/s10714-012-1490-9 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider the bound-state energy levels of a spin-1/2 fermion in the
gravitational field of a near-black hole object. In the limit that the metric
of the body becomes singular, all binding energies tend to the rest-mass energy
(i.e. total energy approaches zero). We present calculations of the ground
state energy f... | [
{
"created": "Tue, 21 Aug 2012 09:26:26 GMT",
"version": "v1"
},
{
"created": "Mon, 17 Sep 2012 03:49:44 GMT",
"version": "v2"
}
] | 2013-03-07 | [
[
"Spencer-Smith",
"A. F.",
""
],
[
"Gossel",
"G. H.",
""
],
[
"Berengut",
"J. C.",
""
],
[
"Flambaum",
"V. V.",
""
]
] | We consider the bound-state energy levels of a spin-1/2 fermion in the gravitational field of a near-black hole object. In the limit that the metric of the body becomes singular, all binding energies tend to the rest-mass energy (i.e. total energy approaches zero). We present calculations of the ground state energy for... |
1501.01286 | Abdel Nasser Tawfik | Abdel Nasser Tawfik (Egyptian Ctr. Theor. Phys., Cairo and WLCAPP,
Cairo), Eiman Abou El Dahab (WLCAPP, Cairo and MTI U., Cairo) | Corrections to entropy and thermodynamics of charged black hole using
generalized uncertainty principle | 23 pages, 2 figures, references updates to appear in Int. J. Mod.
Phys. A | Int. J. Mod. Phys. A 30, (2015) 1550030 | 10.1142/S0217751X1550030X | ECTP-2013-04 | gr-qc quant-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Recently, there has been much attention devoted to resolving the quantum
corrections to the Bekenstein-Hawking (black hole) entropy, which relates the
entropy to the cross-sectional area of the black hole horizon. Using
generalized uncertainty principle (GUP), corrections to the geometric entropy
and thermodynamics o... | [
{
"created": "Tue, 6 Jan 2015 20:06:58 GMT",
"version": "v1"
},
{
"created": "Thu, 19 Feb 2015 21:02:45 GMT",
"version": "v2"
}
] | 2015-03-30 | [
[
"Tawfik",
"Abdel Nasser",
"",
"Egyptian Ctr. Theor. Phys., Cairo and WLCAPP,\n Cairo"
],
[
"Dahab",
"Eiman Abou El",
"",
"WLCAPP, Cairo and MTI U., Cairo"
]
] | Recently, there has been much attention devoted to resolving the quantum corrections to the Bekenstein-Hawking (black hole) entropy, which relates the entropy to the cross-sectional area of the black hole horizon. Using generalized uncertainty principle (GUP), corrections to the geometric entropy and thermodynamics of ... |
2202.07635 | German Izquierdo | Roberto C. Blanquet-Jaramillo, Roberto A. Sussman, Maximo Aguero,
German Izquierdo | Evolution equations dynamical system of the Lema\^itre--Tolman--Bondi
metric containing coupled dark energy | 20 pages. Accepted for publication in Modern Physics Letters A | null | 10.1142/S0217732322501097 | null | gr-qc astro-ph.CO | http://creativecommons.org/licenses/by/4.0/ | We consider inhomogeneous spherically symmetric models based on the
Lema\^{i}tre-Tolman-Bondi (LTB) metric, assuming as its source an interactive
mixture of ordinary baryonic matter, cold dark matter and dark energy with a
coupling term proportional to the addition of energy densities of both dark
fluids. We reduce E... | [
{
"created": "Tue, 15 Feb 2022 18:32:58 GMT",
"version": "v1"
},
{
"created": "Thu, 16 Jun 2022 16:18:31 GMT",
"version": "v2"
},
{
"created": "Wed, 6 Jul 2022 15:34:11 GMT",
"version": "v3"
}
] | 2022-07-07 | [
[
"Blanquet-Jaramillo",
"Roberto C.",
""
],
[
"Sussman",
"Roberto A.",
""
],
[
"Aguero",
"Maximo",
""
],
[
"Izquierdo",
"German",
""
]
] | We consider inhomogeneous spherically symmetric models based on the Lema\^{i}tre-Tolman-Bondi (LTB) metric, assuming as its source an interactive mixture of ordinary baryonic matter, cold dark matter and dark energy with a coupling term proportional to the addition of energy densities of both dark fluids. We reduce Ein... |
gr-qc/9508044 | Herbert Balasin | Herbert Balasin and Herbert Nachbagauer | Boosting the Kerr-geometry into an arbitrary direction | latex2e, no figures | Class.Quant.Grav. 13 (1996) 731-738 | 10.1088/0264-9381/13/4/013 | ENSLAPP-A-538/95, TUW95-17 | gr-qc | null | We generalize previous work \cite{BaNa3} on the ultrarelativistic limit of
the Kerr-geometry by lifting the restriction on boosting along the axis of
symmetry.
| [
{
"created": "Sat, 19 Aug 1995 09:09:17 GMT",
"version": "v1"
}
] | 2009-10-28 | [
[
"Balasin",
"Herbert",
""
],
[
"Nachbagauer",
"Herbert",
""
]
] | We generalize previous work \cite{BaNa3} on the ultrarelativistic limit of the Kerr-geometry by lifting the restriction on boosting along the axis of symmetry. |
2407.03465 | Christof Wetterich | Christof Wetterich | Dark energy evolution from quantum gravity | 15 pages, 9 figures | null | null | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | If an ultraviolet fixed point renders quantum gravity renormalizable, the
effective potential for a singlet scalar field -- the cosmon -- can be computed
according to the corresponding scaling solution of the renormalization group
equations. We associate the largest intrinsic mass scale generated by the flow
away fro... | [
{
"created": "Wed, 3 Jul 2024 19:23:55 GMT",
"version": "v1"
}
] | 2024-07-08 | [
[
"Wetterich",
"Christof",
""
]
] | If an ultraviolet fixed point renders quantum gravity renormalizable, the effective potential for a singlet scalar field -- the cosmon -- can be computed according to the corresponding scaling solution of the renormalization group equations. We associate the largest intrinsic mass scale generated by the flow away from ... |
2007.01111 | Qi-Qi Fan | Qi-Qi Fan, Cong Li, Hao-Ran Zhang, Peng-Zhang He, and Jian-Bo Deng | The cosmological constant from space-time discreteness | 16 | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We regard the background of space-time as a physical system composed of
discrete volume elements at the Planck scale and get the internal energy of
space-time by Debye model. A temperature-dependent minimum energy limit of the
particles is proposed from the thermal motion part of the internal energy. As
decreases of ... | [
{
"created": "Thu, 2 Jul 2020 14:05:58 GMT",
"version": "v1"
}
] | 2020-07-03 | [
[
"Fan",
"Qi-Qi",
""
],
[
"Li",
"Cong",
""
],
[
"Zhang",
"Hao-Ran",
""
],
[
"He",
"Peng-Zhang",
""
],
[
"Deng",
"Jian-Bo",
""
]
] | We regard the background of space-time as a physical system composed of discrete volume elements at the Planck scale and get the internal energy of space-time by Debye model. A temperature-dependent minimum energy limit of the particles is proposed from the thermal motion part of the internal energy. As decreases of th... |
gr-qc/0503044 | Gilles Esposito-Farese | Luc Blanchet, Thibault Damour, Gilles Esposito-Farese, Bala R. Iyer | Dimensional regularization of the third post-Newtonian gravitational
wave generation from two point masses | 60 pages, LaTeX 2e, REVTeX 4, 10 PostScript files (1 figure and 9
Young tableaux used in the text) | Phys.Rev. D71 (2005) 124004 | 10.1103/PhysRevD.71.124004 | null | gr-qc | null | Dimensional regularization is applied to the computation of the gravitational
wave field generated by compact binaries at the third post-Newtonian (3PN)
approximation. We generalize the wave generation formalism from isolated
post-Newtonian matter systems to d spatial dimensions, and apply it to point
masses (without... | [
{
"created": "Thu, 10 Mar 2005 17:36:57 GMT",
"version": "v1"
}
] | 2007-12-19 | [
[
"Blanchet",
"Luc",
""
],
[
"Damour",
"Thibault",
""
],
[
"Esposito-Farese",
"Gilles",
""
],
[
"Iyer",
"Bala R.",
""
]
] | Dimensional regularization is applied to the computation of the gravitational wave field generated by compact binaries at the third post-Newtonian (3PN) approximation. We generalize the wave generation formalism from isolated post-Newtonian matter systems to d spatial dimensions, and apply it to point masses (without s... |
1601.03355 | Matt Visser | Deloshan Nawarajan (Victoria University of Wellington) and Matt Visser
(Victoria University of Wellington) | Global properties of physically interesting Lorentzian spacetimes | 19 pages | International Journal of Modern Physics D25 (2016) 1650106 | 10.1142/S0218271816501066 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Under normal circumstances most members of the general relativity community
focus almost exclusively on the local properties of spacetime, such as the
locally Euclidean structure of the manifold and the Lorentzian signature of the
metric tensor. When combined with the classical Einstein field equations this
gives an ... | [
{
"created": "Wed, 13 Jan 2016 19:17:06 GMT",
"version": "v1"
}
] | 2017-11-28 | [
[
"Nawarajan",
"Deloshan",
"",
"Victoria University of Wellington"
],
[
"Visser",
"Matt",
"",
"Victoria University of Wellington"
]
] | Under normal circumstances most members of the general relativity community focus almost exclusively on the local properties of spacetime, such as the locally Euclidean structure of the manifold and the Lorentzian signature of the metric tensor. When combined with the classical Einstein field equations this gives an ex... |
1405.6367 | Jian-Yang Zhu | Kui Xiao, Xiao-Kai He, Fei Huang and Jian-Yang Zhu | Phenomenology analysis of duration inflation for Tachyon field in loop
quantum cosmology | 8 pages, 6 figures | International Journal of Modern Physics D Vol. 23, No. 11 (2014)
1450087 | 10.1142/S0218271814500874 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Assuming that the e-folding number is just determined by the change of the
scale factor, the tachyonic inflation theory in LQC has been discussed.
Considering the tachyon field with exponential potential and inverse quadratic
potential, we find that the evolutionary pictures of super inflation are
affected by the pot... | [
{
"created": "Sun, 25 May 2014 09:14:32 GMT",
"version": "v1"
},
{
"created": "Sun, 14 Dec 2014 14:27:47 GMT",
"version": "v2"
}
] | 2014-12-16 | [
[
"Xiao",
"Kui",
""
],
[
"He",
"Xiao-Kai",
""
],
[
"Huang",
"Fei",
""
],
[
"Zhu",
"Jian-Yang",
""
]
] | Assuming that the e-folding number is just determined by the change of the scale factor, the tachyonic inflation theory in LQC has been discussed. Considering the tachyon field with exponential potential and inverse quadratic potential, we find that the evolutionary pictures of super inflation are affected by the poten... |
gr-qc/0301064 | J. E. Horvath | P.S.Custodio and J.E.Horvath (IAG/USP, Brazil) | Holographic Principle bounds on Primordial Black Hole abundances | Latex file, 2 .ps figures. To appear in Classical and Quantum Gravity | Class.Quant.Grav. 20 (2003) 813-826 | 10.1088/0264-9381/20/5/303 | IAG-233 | gr-qc | null | The generalized Second Law of thermodynamics and the Holographic Principle
are combined to obtain the maximum mass of black holes formed inside a static
spherical box of size $R$ filled with radiation at initial temperature $T_{i}$.
The final temperature after the formation of black holes is evaluated, and we
show th... | [
{
"created": "Fri, 17 Jan 2003 21:26:55 GMT",
"version": "v1"
}
] | 2017-01-18 | [
[
"Custodio",
"P. S.",
"",
"IAG/USP, Brazil"
],
[
"Horvath",
"J. E.",
"",
"IAG/USP, Brazil"
]
] | The generalized Second Law of thermodynamics and the Holographic Principle are combined to obtain the maximum mass of black holes formed inside a static spherical box of size $R$ filled with radiation at initial temperature $T_{i}$. The final temperature after the formation of black holes is evaluated, and we show that... |
gr-qc/0511103 | Joan Centrella | John G. Baker, Joan Centrella, Dae-Il Choi, Michael Koppitz, James van
Meter | Gravitational wave extraction from an inspiraling configuration of
merging black holes | 4 pages, 5 figures | Phys.Rev.Lett.96:111102,2006 | 10.1103/PhysRevLett.96.111102 | null | gr-qc astro-ph physics.comp-ph | null | We present new techniqes for evolving binary black hole systems which allow
the accurate determination of gravitational waveforms directly from the wave
zone region of the numerical simulations. Rather than excising the black hole
interiors, our approach follows the "puncture" treatment of black holes, but
utilzing a... | [
{
"created": "Thu, 17 Nov 2005 18:01:37 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Baker",
"John G.",
""
],
[
"Centrella",
"Joan",
""
],
[
"Choi",
"Dae-Il",
""
],
[
"Koppitz",
"Michael",
""
],
[
"van Meter",
"James",
""
]
] | We present new techniqes for evolving binary black hole systems which allow the accurate determination of gravitational waveforms directly from the wave zone region of the numerical simulations. Rather than excising the black hole interiors, our approach follows the "puncture" treatment of black holes, but utilzing a n... |
1606.04738 | Elsayed Lashin Dr. | E. I. Lashin and Djamel Dou | Comment on "Quantum Raychaudhuri equation" | 5 pages, More condensed and focused than the previous long detailed
version. Accepted in Phys. Rev. D | Phys. Rev. D 95, 068501 (2017) | 10.1103/PhysRevD.95.068501 | null | gr-qc hep-th quant-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We address the validity of the formalism and results presented in [ S. Das,
Phys. Rev. {\bf D89} 084068 (2014)] with regard to quantum Raychaudhuri
equation. The author obtained the so called quantum Raychaudhuri equation by
replacing classical geodesics with quantal trajectories arising from Bhommian
mechanics. The ... | [
{
"created": "Wed, 15 Jun 2016 12:23:56 GMT",
"version": "v1"
},
{
"created": "Tue, 4 Apr 2017 17:43:24 GMT",
"version": "v2"
}
] | 2017-04-05 | [
[
"Lashin",
"E. I.",
""
],
[
"Dou",
"Djamel",
""
]
] | We address the validity of the formalism and results presented in [ S. Das, Phys. Rev. {\bf D89} 084068 (2014)] with regard to quantum Raychaudhuri equation. The author obtained the so called quantum Raychaudhuri equation by replacing classical geodesics with quantal trajectories arising from Bhommian mechanics. The re... |
0907.2570 | Yuta Yamada | Yuta Yamada and Hisa-aki Shinkai | Black Objects and Hoop Conjecture in Five-dimensional Space-time | 20 pages, 10 figures Added a couple of comments and references,
corrected grammatical errors. To be published in Class. Quant. Grav. (2010) | null | 10.1088/0264-9381/27/4/045012 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We numerically investigated the sequences of initial data of thin spindle and
thin ring in five-dimensional space-time in the context of the cosmic
censorship conjecture. We modeled the matter in non-rotating homogeneous
spheroidal or toroidal configurations under the momentarily static assumption,
solved the Hamilto... | [
{
"created": "Wed, 15 Jul 2009 12:32:26 GMT",
"version": "v1"
},
{
"created": "Thu, 14 Jan 2010 05:28:58 GMT",
"version": "v2"
}
] | 2015-05-13 | [
[
"Yamada",
"Yuta",
""
],
[
"Shinkai",
"Hisa-aki",
""
]
] | We numerically investigated the sequences of initial data of thin spindle and thin ring in five-dimensional space-time in the context of the cosmic censorship conjecture. We modeled the matter in non-rotating homogeneous spheroidal or toroidal configurations under the momentarily static assumption, solved the Hamiltoni... |
2004.08302 | H\'ector Estell\'es | H\'ector Estell\'es, Antoni Ramos-Buades, Sascha Husa, Cecilio
Garc\'ia-Quir\'os, Marta Colleoni, Le\"ila Haegel and Rafel Jaume | IMRPhenomTP: A phenomenological time domain model for dominant
quadrupole gravitational wave signal of coalescing binary black holes | 19 pages, 11 figures | Phys. Rev. D 103, 124060 (2021) | 10.1103/PhysRevD.103.124060 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this work we present IMRPhenomTP, a time domain phenomenological model for
the dominant $l=2$, $m=|2|$ modes of coalescing black hole binary systems and
its extension to describe general precessing systems within the "twisting up"
approximation. The underlying non-precessing model is calibrated to the new
release ... | [
{
"created": "Fri, 17 Apr 2020 15:26:02 GMT",
"version": "v1"
},
{
"created": "Wed, 22 Apr 2020 08:08:58 GMT",
"version": "v2"
}
] | 2021-07-07 | [
[
"Estellés",
"Héctor",
""
],
[
"Ramos-Buades",
"Antoni",
""
],
[
"Husa",
"Sascha",
""
],
[
"García-Quirós",
"Cecilio",
""
],
[
"Colleoni",
"Marta",
""
],
[
"Haegel",
"Leïla",
""
],
[
"Jaume",
"Rafel",
""
]... | In this work we present IMRPhenomTP, a time domain phenomenological model for the dominant $l=2$, $m=|2|$ modes of coalescing black hole binary systems and its extension to describe general precessing systems within the "twisting up" approximation. The underlying non-precessing model is calibrated to the new release of... |
1008.4586 | Dejan Stojkovic | De-Chang Dai and Dejan Stojkovic | Analytic explanation of the strong spin-dependent amplification in
Hawking radiation from rotating black holes | Published in JHEP; one reference corrected | null | 10.1007/JHEP08(2010)016 | null | gr-qc hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Numerical studies of black hole greybody factors indicate that Hawking
emission from a highly rotating black hole is strongly spin dependent, with
particles of highest spin (gravitons) dominating the energy spectrum. So far,
there has been no analytic explanation or description of this effect. Using
"gravitomagnetism... | [
{
"created": "Thu, 26 Aug 2010 20:01:29 GMT",
"version": "v1"
},
{
"created": "Wed, 19 Jan 2011 19:09:18 GMT",
"version": "v2"
}
] | 2015-05-19 | [
[
"Dai",
"De-Chang",
""
],
[
"Stojkovic",
"Dejan",
""
]
] | Numerical studies of black hole greybody factors indicate that Hawking emission from a highly rotating black hole is strongly spin dependent, with particles of highest spin (gravitons) dominating the energy spectrum. So far, there has been no analytic explanation or description of this effect. Using "gravitomagnetism",... |
gr-qc/0511119 | Ezra Newman | Ezra T. Newman, Pawel Nurowski | CR Structures and Asymptotically Flat Space-Times | 6 pages | Class.Quant.Grav.23:3123-3128,2006 | 10.1088/0264-9381/23/9/022 | null | gr-qc | null | We discuss the unique existence, arising by analogy to that in algebraically
special space-times, of a CR structure realized on null infinity for any
asymptotically flat Einstein or Einstein-Maxwell space-time.
| [
{
"created": "Mon, 21 Nov 2005 19:59:51 GMT",
"version": "v1"
}
] | 2009-11-11 | [
[
"Newman",
"Ezra T.",
""
],
[
"Nurowski",
"Pawel",
""
]
] | We discuss the unique existence, arising by analogy to that in algebraically special space-times, of a CR structure realized on null infinity for any asymptotically flat Einstein or Einstein-Maxwell space-time. |
gr-qc/0210033 | Boisseau | B. Boisseau | Vortex in a weakly relativistic Bose gas at zero temperature and
relativistic fluid approximation | 20 pages | J.Phys.A37:7923-7938,2004 | 10.1088/0305-4470/37/32/007 | null | gr-qc | null | The Bogoliubov procedure in quantum field theory is used to describe a
relativistic almost ideal Bose gas at zero temperature. Special attention is
given to the study of a vortex. The radius of the vortex in the field
description is compared to that obtained in the relativistic fluid
approximation. The Kelvin waves a... | [
{
"created": "Thu, 10 Oct 2002 18:05:20 GMT",
"version": "v1"
},
{
"created": "Thu, 26 Feb 2004 15:15:17 GMT",
"version": "v2"
},
{
"created": "Tue, 14 Sep 2004 09:40:24 GMT",
"version": "v3"
}
] | 2008-11-26 | [
[
"Boisseau",
"B.",
""
]
] | The Bogoliubov procedure in quantum field theory is used to describe a relativistic almost ideal Bose gas at zero temperature. Special attention is given to the study of a vortex. The radius of the vortex in the field description is compared to that obtained in the relativistic fluid approximation. The Kelvin waves are... |
1811.12760 | Rafael Nunes | Rafael C. Nunes, Marcio E. S. Alves, Jose C. N. de Araujo | Primordial gravitational waves in Horndeski gravity | 8 pages, 9 figures, 2 tables. Matches the version published in PRD | Phys. Rev. D 99, 084022 (2019) | 10.1103/PhysRevD.99.084022 | null | gr-qc astro-ph.CO hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate the propagation of primordial gravitational waves within the
context of the Horndeski theories, for this, we present a generalized transfer
function quantifying the sub-horizon evolution of gravitational waves modes
after they enter the horizon. We compare the theoretical prediction of the
modified pri... | [
{
"created": "Fri, 30 Nov 2018 12:37:10 GMT",
"version": "v1"
},
{
"created": "Mon, 15 Apr 2019 14:36:18 GMT",
"version": "v2"
}
] | 2019-04-16 | [
[
"Nunes",
"Rafael C.",
""
],
[
"Alves",
"Marcio E. S.",
""
],
[
"de Araujo",
"Jose C. N.",
""
]
] | We investigate the propagation of primordial gravitational waves within the context of the Horndeski theories, for this, we present a generalized transfer function quantifying the sub-horizon evolution of gravitational waves modes after they enter the horizon. We compare the theoretical prediction of the modified primo... |
2206.00609 | Matthew J. Lake Dr | Matthew J. Lake | Fractal properties of particle paths due to generalised uncertainty
relations | 19 pages, 2 figures, 2 tables. Published version | Eur. Phys. J. C 82, 928 (2022) | 10.1140/epjc/s10052-022-10813-z | null | gr-qc hep-ph quant-ph | http://creativecommons.org/licenses/by/4.0/ | We determine the Hausdorff dimension of a particle path, $D_{\rm H}$, in the
recently proposed `smeared space' model of quantum geometry. The model
introduces additional degrees of freedom to describe the quantum state of the
background and gives rise to both the generalised uncertainty principle (GUP)
and extended u... | [
{
"created": "Wed, 1 Jun 2022 16:26:39 GMT",
"version": "v1"
},
{
"created": "Thu, 29 Sep 2022 09:16:06 GMT",
"version": "v2"
},
{
"created": "Sat, 22 Oct 2022 10:46:14 GMT",
"version": "v3"
}
] | 2022-10-25 | [
[
"Lake",
"Matthew J.",
""
]
] | We determine the Hausdorff dimension of a particle path, $D_{\rm H}$, in the recently proposed `smeared space' model of quantum geometry. The model introduces additional degrees of freedom to describe the quantum state of the background and gives rise to both the generalised uncertainty principle (GUP) and extended unc... |
gr-qc/9302015 | Jason Twamley | J. Twamley | The quantum behavior of general time dependent quadratic systems
linearly coupled to a bath | 20 pages, revtex v.3.0, ADP-93-199/M14 (Revison: lines correctly set
to lengths < 80 ) | Phys.Rev.A48:2627-2633,1993 | 10.1103/PhysRevA.48.2627 | null | gr-qc | null | In this paper we solve for the quantum propagator of a general time dependent
system quadratic in both position and momentum, linearly coupled to an infinite
bath of harmonic oscillators. We work in the regime where the quantum optical
master equation is valid. We map this master equation to a Schroedinger
equation o... | [
{
"created": "Thu, 11 Feb 1993 23:53:10 GMT",
"version": "v1"
},
{
"created": "Fri, 12 Feb 1993 18:59:01 GMT",
"version": "v2"
}
] | 2008-11-26 | [
[
"Twamley",
"J.",
""
]
] | In this paper we solve for the quantum propagator of a general time dependent system quadratic in both position and momentum, linearly coupled to an infinite bath of harmonic oscillators. We work in the regime where the quantum optical master equation is valid. We map this master equation to a Schroedinger equation on ... |
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