id stringlengths 9 13 | submitter stringlengths 1 64 ⌀ | authors stringlengths 5 22.9k | title stringlengths 4 245 | comments stringlengths 1 548 ⌀ | journal-ref stringlengths 4 362 ⌀ | doi stringlengths 12 82 ⌀ | report-no stringlengths 2 281 ⌀ | categories stringclasses 793
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2310.06321 | Alvin Chua | Ruiting Mao, Jeong Eun Lee, Ollie Burke, Alvin J. K. Chua, Matthew C.
Edwards, Renate Meyer | Calibrating approximate Bayesian credible intervals of
gravitational-wave parameters | 24 pages, 12 figures | Phys. Rev. D 109, 083002 (2024) | 10.1103/PhysRevD.109.083002 | null | gr-qc astro-ph.IM | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Approximations are commonly employed in realistic applications of scientific
Bayesian inference, often due to convenience if not necessity. In the field of
gravitational-wave (GW) data analysis, fast-to-evaluate but approximate
waveform models of astrophysical GW signals are sometimes used in lieu of more
accurate mo... | [
{
"created": "Tue, 10 Oct 2023 05:33:08 GMT",
"version": "v1"
},
{
"created": "Wed, 31 Jan 2024 04:14:16 GMT",
"version": "v2"
}
] | 2024-04-03 | [
[
"Mao",
"Ruiting",
""
],
[
"Lee",
"Jeong Eun",
""
],
[
"Burke",
"Ollie",
""
],
[
"Chua",
"Alvin J. K.",
""
],
[
"Edwards",
"Matthew C.",
""
],
[
"Meyer",
"Renate",
""
]
] | Approximations are commonly employed in realistic applications of scientific Bayesian inference, often due to convenience if not necessity. In the field of gravitational-wave (GW) data analysis, fast-to-evaluate but approximate waveform models of astrophysical GW signals are sometimes used in lieu of more accurate mode... |
0910.5818 | Giacomo Tommei | G. Tommei, A. Milani, D. Vokrouhlicky | Light-time computations for the BepiColombo radioscience experiment | 14 pages, 7 figures, corrected references | null | 10.1007/s10569-010-9273-7 | null | gr-qc astro-ph.EP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The radioscience experiment is one of the on board experiment of the Mercury
ESA mission BepiColombo that will be launched in 2014. The goals of the
experiment are to determine the gravity field of Mercury and its rotation
state, to determine the orbit of Mercury, to constrain the possible theories of
gravitation (fo... | [
{
"created": "Fri, 30 Oct 2009 09:21:07 GMT",
"version": "v1"
},
{
"created": "Tue, 3 Nov 2009 08:55:14 GMT",
"version": "v2"
}
] | 2015-05-14 | [
[
"Tommei",
"G.",
""
],
[
"Milani",
"A.",
""
],
[
"Vokrouhlicky",
"D.",
""
]
] | The radioscience experiment is one of the on board experiment of the Mercury ESA mission BepiColombo that will be launched in 2014. The goals of the experiment are to determine the gravity field of Mercury and its rotation state, to determine the orbit of Mercury, to constrain the possible theories of gravitation (for ... |
1704.05945 | Vasilis Oikonomou | S. Nojiri, S.D. Odintsov, V.K. Oikonomou | Constant-roll Inflation in $F(R)$ Gravity | CQG accepted | null | 10.1088/1361-6382/aa92a4 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We propose the study of constant-roll inflation in $F(R)$ gravity. We use two
different approaches, one that relates an $F(R)$ gravity to well known scalar
models of constant-roll and a second that examines directly the constant-roll
condition in $F(R)$ gravity. With regards to the first approach, by using well
known... | [
{
"created": "Wed, 19 Apr 2017 22:13:21 GMT",
"version": "v1"
},
{
"created": "Sun, 25 Jun 2017 18:35:12 GMT",
"version": "v2"
},
{
"created": "Wed, 11 Oct 2017 20:34:09 GMT",
"version": "v3"
}
] | 2017-12-06 | [
[
"Nojiri",
"S.",
""
],
[
"Odintsov",
"S. D.",
""
],
[
"Oikonomou",
"V. K.",
""
]
] | We propose the study of constant-roll inflation in $F(R)$ gravity. We use two different approaches, one that relates an $F(R)$ gravity to well known scalar models of constant-roll and a second that examines directly the constant-roll condition in $F(R)$ gravity. With regards to the first approach, by using well known t... |
0909.2490 | Jiliang Jing | Chikun Ding, Songbai Chen, Jiliang Jing | Dynamical evolution of scalar perturbation in Ho\v{r}ava-Lifshitz
black-hole spacetimes | 14 pages, 5 figures | Phys.Rev.D81:024028,2010 | 10.1103/PhysRevD.81.024028 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the dynamical evolution of a massless scalar perturbation in the
Ho\v{r}ava-Lifshitz black-hole spacetimes with the coupling constants
$\lambda={1/3}$, $\lambda={1/2}$ and $\lambda=3$, respectively. Our calculation
shows that, for the three cases, the scalar perturbations decay without any
oscillation in whi... | [
{
"created": "Mon, 14 Sep 2009 09:03:38 GMT",
"version": "v1"
}
] | 2014-11-20 | [
[
"Ding",
"Chikun",
""
],
[
"Chen",
"Songbai",
""
],
[
"Jing",
"Jiliang",
""
]
] | We study the dynamical evolution of a massless scalar perturbation in the Ho\v{r}ava-Lifshitz black-hole spacetimes with the coupling constants $\lambda={1/3}$, $\lambda={1/2}$ and $\lambda=3$, respectively. Our calculation shows that, for the three cases, the scalar perturbations decay without any oscillation in which... |
gr-qc/0110116 | Lorenzo Iorio | Lorenzo Iorio | Is it possible to test directly General Relativity in the gravitational
field of the Moon? | Latex2e, 7 pages, no figures, ets2000.cls and art12.sty used. Major
rewriting in introduction. References added | Class.Quant.Grav. 19 (2002) 2393-2398 | 10.1088/0264-9381/19/9/305 | null | gr-qc astro-ph | null | In this paper the possibility of measuring some general relativistic effects
in the gravitational field of the Moon via selenodetic missions, with
particular emphasis to the future Japanese SELENE mission, is investigated. For
a typical selenodetic orbital configuration the post-Newtonian Lense-Thirring
gravitomagnet... | [
{
"created": "Fri, 26 Oct 2001 14:08:10 GMT",
"version": "v1"
},
{
"created": "Mon, 29 Oct 2001 22:28:20 GMT",
"version": "v2"
},
{
"created": "Thu, 7 Feb 2002 18:43:21 GMT",
"version": "v3"
}
] | 2007-05-23 | [
[
"Iorio",
"Lorenzo",
""
]
] | In this paper the possibility of measuring some general relativistic effects in the gravitational field of the Moon via selenodetic missions, with particular emphasis to the future Japanese SELENE mission, is investigated. For a typical selenodetic orbital configuration the post-Newtonian Lense-Thirring gravitomagnetic... |
1502.03988 | Yashar Akrami | Henrik Nersisyan, Yashar Akrami, Luca Amendola | Consistent metric combinations in cosmology of massive bigravity | 17 pages, no figures. Version published in PRD | Phys. Rev. D 92, 104034 (2015) | 10.1103/PhysRevD.92.104034 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Massive bigravity models are interesting alternatives to standard cosmology.
In most cases, however, these models have been studied for a simplified
scenario in which both metrics take homogeneous and isotropic forms
[Friedmann-Lema\^itre-Robertson-Walker (FLRW)] with the same spatial
curvatures. The interest to cons... | [
{
"created": "Fri, 13 Feb 2015 13:50:28 GMT",
"version": "v1"
},
{
"created": "Tue, 14 Apr 2015 15:50:17 GMT",
"version": "v2"
},
{
"created": "Sat, 7 Nov 2015 22:14:02 GMT",
"version": "v3"
}
] | 2015-11-18 | [
[
"Nersisyan",
"Henrik",
""
],
[
"Akrami",
"Yashar",
""
],
[
"Amendola",
"Luca",
""
]
] | Massive bigravity models are interesting alternatives to standard cosmology. In most cases, however, these models have been studied for a simplified scenario in which both metrics take homogeneous and isotropic forms [Friedmann-Lema\^itre-Robertson-Walker (FLRW)] with the same spatial curvatures. The interest to consid... |
2204.03091 | Derek Davis | Derek Davis, Max Trevor, Simone Mozzon, Laura K. Nuttall | Incorporating information from LIGO data quality streams into the PyCBC
search for gravitational waves | 14 pages, 5 figures | null | 10.1103/PhysRevD.106.102006 | LIGO-P2200078 | gr-qc astro-ph.IM | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present a new method which accounts for changes in the properties of
gravitational-wave detector noise over time in the PyCBC search for
gravitational waves from compact binary coalescences. We use information from
LIGO data quality streams that monitor the status of each detector and its
environment to model chan... | [
{
"created": "Wed, 6 Apr 2022 21:10:10 GMT",
"version": "v1"
}
] | 2022-12-07 | [
[
"Davis",
"Derek",
""
],
[
"Trevor",
"Max",
""
],
[
"Mozzon",
"Simone",
""
],
[
"Nuttall",
"Laura K.",
""
]
] | We present a new method which accounts for changes in the properties of gravitational-wave detector noise over time in the PyCBC search for gravitational waves from compact binary coalescences. We use information from LIGO data quality streams that monitor the status of each detector and its environment to model change... |
0707.1066 | Max Chaves | Max Chaves | The quantization of gravity and the vacuum energy of quantum fields | 18 pages & no figures | null | null | null | gr-qc hep-th | null | We construct a unified covariant derivative that contains the sum of an
affine connection and a Yang-Mills field. With it we construct a lagrangian
that is invariant both under diffeomorphisms and Yang-Mills gauge
transformations. We assume that metric and symmetric affine connection are
independent quantities, and m... | [
{
"created": "Mon, 9 Jul 2007 14:35:27 GMT",
"version": "v1"
}
] | 2007-07-10 | [
[
"Chaves",
"Max",
""
]
] | We construct a unified covariant derivative that contains the sum of an affine connection and a Yang-Mills field. With it we construct a lagrangian that is invariant both under diffeomorphisms and Yang-Mills gauge transformations. We assume that metric and symmetric affine connection are independent quantities, and mak... |
1902.06356 | Chandrima Ganguly | Chandrima Ganguly, Marco Bruni | Quasi-isotropic cycles and non-singular bounces in a Mixmaster cosmology | 5 pages, 4 figures | Phys. Rev. Lett. 123, 201301 (2019) | 10.1103/PhysRevLett.123.201301 | null | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A Bianchi IX Mixmaster spacetime is the most general spatially homogeneous
solution of Einstein's equations and it can represent the space-averaged
Universe. We introduce two novel mechanisms resulting in a Mixmaster Universe
with non-singular bounces which are quasi-isotropic. A fluid with a non-linear
equation of s... | [
{
"created": "Mon, 18 Feb 2019 00:08:31 GMT",
"version": "v1"
},
{
"created": "Thu, 14 Mar 2019 00:39:01 GMT",
"version": "v2"
}
] | 2019-11-20 | [
[
"Ganguly",
"Chandrima",
""
],
[
"Bruni",
"Marco",
""
]
] | A Bianchi IX Mixmaster spacetime is the most general spatially homogeneous solution of Einstein's equations and it can represent the space-averaged Universe. We introduce two novel mechanisms resulting in a Mixmaster Universe with non-singular bounces which are quasi-isotropic. A fluid with a non-linear equation of sta... |
2407.21649 | Francisco Lobo | Ednaldo L. B. Junior, Jos\'e Tarciso S. S. Junior, Francisco S. N.
Lobo, Manuel E. Rodrigues, Diego Rubiera-Garcia, Lu\'is F. Dias da Silva,
Henrique A. Vieira | Black bounces in Cotton gravity | 14 pages, 6 figures | null | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Recently, J. Harada proposed a theory relating gravity to the Cotton tensor,
dubbed as ''Cotton gravity'' (CG). This is an extension of General Relativity
such that every solution of the latter turns out to be a solution of the former
(but the converse is not true) and, furthermore, it is possible to derive the
cosmo... | [
{
"created": "Wed, 31 Jul 2024 14:50:49 GMT",
"version": "v1"
}
] | 2024-08-01 | [
[
"Junior",
"Ednaldo L. B.",
""
],
[
"Junior",
"José Tarciso S. S.",
""
],
[
"Lobo",
"Francisco S. N.",
""
],
[
"Rodrigues",
"Manuel E.",
""
],
[
"Rubiera-Garcia",
"Diego",
""
],
[
"da Silva",
"Luís F. Dias",
""
],
[
... | Recently, J. Harada proposed a theory relating gravity to the Cotton tensor, dubbed as ''Cotton gravity'' (CG). This is an extension of General Relativity such that every solution of the latter turns out to be a solution of the former (but the converse is not true) and, furthermore, it is possible to derive the cosmolo... |
1304.6492 | Andrzej Okolow | Andrzej Okolow | Kinematic quantum states for the Teleparallel Equivalent of General
Relativity | 41 pages, no figures, Latex2e | Gen. Rel. Grav. 46:1653 (2014) | 10.1007/s10714-013-1653-3 | null | gr-qc hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A space of kinematic quantum states for the Teleparallel Equivalent of
General Relativity is constructed by means of projective techniques. The states
are kinematic in this sense that their construction bases merely on the
structure of the phase space of the theory and does not take into account
constraints on it. Th... | [
{
"created": "Wed, 24 Apr 2013 07:24:34 GMT",
"version": "v1"
},
{
"created": "Mon, 14 Jul 2014 15:03:05 GMT",
"version": "v2"
}
] | 2014-07-15 | [
[
"Okolow",
"Andrzej",
""
]
] | A space of kinematic quantum states for the Teleparallel Equivalent of General Relativity is constructed by means of projective techniques. The states are kinematic in this sense that their construction bases merely on the structure of the phase space of the theory and does not take into account constraints on it. The ... |
gr-qc/0604088 | Christopher Eling | Christopher Eling and Ted Jacobson | Black Holes in Einstein-Aether Theory | 22 pages, 6 figures; v2: minor editing; v3: corrected overall sign in
twist formula and an error in the equation for the aether stress tensor.
Results unchanged since correct form was used in calculations; v4: corrected
minor typo | Class.Quant.Grav.23:5643-5660,2006; Erratum-ibid.27:049802,2010 | 10.1088/0264-9381/23/18/009 10.1088/0264-9381/27/4/049802 | null | gr-qc astro-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study black hole solutions in general relativity coupled to a unit
timelike vector field dubbed the "aether". To be causally isolated a black hole
interior must trap matter fields as well as all aether and metric modes. The
theory possesses spin-0, spin-1, and spin-2 modes whose speeds depend on four
coupling coef... | [
{
"created": "Thu, 20 Apr 2006 19:49:09 GMT",
"version": "v1"
},
{
"created": "Mon, 14 Aug 2006 20:17:20 GMT",
"version": "v2"
},
{
"created": "Sun, 6 Dec 2009 14:52:16 GMT",
"version": "v3"
},
{
"created": "Sun, 28 Mar 2010 12:58:03 GMT",
"version": "v4"
}
] | 2010-03-30 | [
[
"Eling",
"Christopher",
""
],
[
"Jacobson",
"Ted",
""
]
] | We study black hole solutions in general relativity coupled to a unit timelike vector field dubbed the "aether". To be causally isolated a black hole interior must trap matter fields as well as all aether and metric modes. The theory possesses spin-0, spin-1, and spin-2 modes whose speeds depend on four coupling coeffi... |
2403.04827 | Pablo Antonio Cano Molina-Ni\~nirola | Pablo Bueno, Pablo A. Cano, Robie A. Hennigar | Regular Black Holes From Pure Gravity | 5 pages+appendix, 1 figure; v2: references added. Version sent to the
journal | null | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We show via an explicit construction how an infinite tower of
higher-curvature corrections generically leads to a resolution of the
Schwarzschild singularity in any spacetime dimension $D \ge 5$. The theories we
consider have two key properties that ensure the results are general and
robust: (1) they provide a basis ... | [
{
"created": "Thu, 7 Mar 2024 19:00:01 GMT",
"version": "v1"
},
{
"created": "Tue, 19 Mar 2024 14:31:07 GMT",
"version": "v2"
}
] | 2024-03-20 | [
[
"Bueno",
"Pablo",
""
],
[
"Cano",
"Pablo A.",
""
],
[
"Hennigar",
"Robie A.",
""
]
] | We show via an explicit construction how an infinite tower of higher-curvature corrections generically leads to a resolution of the Schwarzschild singularity in any spacetime dimension $D \ge 5$. The theories we consider have two key properties that ensure the results are general and robust: (1) they provide a basis fo... |
2209.09241 | Khalil El Bourakadi | K. El Bourakadi, Z. Sakhi and M. Bennai | Preheating constraints in $\alpha$-attractor inflation and Gravitational
Waves production | arXiv admin note: text overlap with arXiv:2209.08581 | null | 10.1142/S0217751X22501172 | International Journal of Modern Physics AVol. 37, No. 17, 2250117
(2022) | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We propose a scenario where preheating occurs for a specific duration that is
parametrized by an e-folds number $N_{pre}$, our results suggest a direct
correlation between the preheating duration and the density of gravitational
waves (GWs) produced during this phase. Moreover, we investigate the
consequences of the ... | [
{
"created": "Sun, 18 Sep 2022 15:22:56 GMT",
"version": "v1"
}
] | 2022-09-21 | [
[
"Bourakadi",
"K. El",
""
],
[
"Sakhi",
"Z.",
""
],
[
"Bennai",
"M.",
""
]
] | We propose a scenario where preheating occurs for a specific duration that is parametrized by an e-folds number $N_{pre}$, our results suggest a direct correlation between the preheating duration and the density of gravitational waves (GWs) produced during this phase. Moreover, we investigate the consequences of the in... |
1110.3973 | W. M. Stuckey | W.M. Stuckey, T.J. McDevitt and M. Silberstein | Modified Regge calculus as an explanation of dark energy | 15 pages text, 6 figures. Revised as accepted for publication in
Class. Quant. Grav | Classical & Quantum Gravity 29, 055015 (2012) | 10.1088/0264-9381/29/5/055015 | null | gr-qc astro-ph.CO quant-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Using Regge calculus, we construct a Regge differential equation for the time
evolution of the scale factor $a(t)$ in the Einstein-de Sitter cosmology model
(EdS). We propose two modifications to the Regge calculus approach: 1) we allow
the graphical links on spatial hypersurfaces to be large, as in direct particle
i... | [
{
"created": "Mon, 17 Oct 2011 18:55:38 GMT",
"version": "v1"
},
{
"created": "Thu, 26 Jan 2012 14:59:14 GMT",
"version": "v2"
}
] | 2015-05-30 | [
[
"Stuckey",
"W. M.",
""
],
[
"McDevitt",
"T. J.",
""
],
[
"Silberstein",
"M.",
""
]
] | Using Regge calculus, we construct a Regge differential equation for the time evolution of the scale factor $a(t)$ in the Einstein-de Sitter cosmology model (EdS). We propose two modifications to the Regge calculus approach: 1) we allow the graphical links on spatial hypersurfaces to be large, as in direct particle int... |
2309.07931 | Suresh Tiwari dr | S. C. Tiwari | Comments on "A clarification on prevailing misconceptions in unimodular
gravity" | 2 pages additional reference with short discussion in the updated
version | null | null | null | gr-qc | http://creativecommons.org/licenses/by-nc-nd/4.0/ | In this comment on arXiv:2308.07360 it is pointed out that though the authors
raise an important question on the prevailing presentations of the unimodular
gravity their own presentation is incomplete as well as confusing equating
assumptions to misconceptions. We focus on the notion of diffeomorphism
invariance, gen... | [
{
"created": "Wed, 13 Sep 2023 18:50:34 GMT",
"version": "v1"
},
{
"created": "Mon, 3 Jun 2024 05:35:29 GMT",
"version": "v2"
}
] | 2024-06-04 | [
[
"Tiwari",
"S. C.",
""
]
] | In this comment on arXiv:2308.07360 it is pointed out that though the authors raise an important question on the prevailing presentations of the unimodular gravity their own presentation is incomplete as well as confusing equating assumptions to misconceptions. We focus on the notion of diffeomorphism invariance, gener... |
1211.2581 | George Moutsopoulos | George Moutsopoulos | Homogeneous anisotropic solutions of topologically massive gravity with
cosmological constant and their homogeneous deformations | latex, 56 pages, pdf figures, tikz figures. v3: corrected deformation
graph, added discussion on de Sitter / hyperbolic deformation, typo
corrections, more notation crossrefs, changed so(theta) to iso(theta)
notation, a few more refs, publication version, no major changes | Class. Quantum Grav. 30 125014 (2013) | 10.1088/0264-9381/30/12/125014 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We solve the equations of topologically massive gravity with potentially
non-vanishing cosmological constant for homogeneous metrics without isotropy.
We only reproduce known solutions. We also discuss their homogeneous
deformations, possibly with isotropy. We show that de Sitter space and
hyperbolic space cannot be ... | [
{
"created": "Mon, 12 Nov 2012 11:50:57 GMT",
"version": "v1"
},
{
"created": "Thu, 15 Nov 2012 19:17:35 GMT",
"version": "v2"
},
{
"created": "Thu, 2 May 2013 10:36:30 GMT",
"version": "v3"
}
] | 2013-05-30 | [
[
"Moutsopoulos",
"George",
""
]
] | We solve the equations of topologically massive gravity with potentially non-vanishing cosmological constant for homogeneous metrics without isotropy. We only reproduce known solutions. We also discuss their homogeneous deformations, possibly with isotropy. We show that de Sitter space and hyperbolic space cannot be in... |
1310.4481 | Enrico Barausse | Carlos Palenzuela, Enrico Barausse, Marcelo Ponce and Luis Lehner | Dynamical scalarization of neutron stars in scalar-tensor gravity
theories | 17 pages, 20 figures; matches version published in PRD | Phys. Rev. D 89, 044024 (2014) | 10.1103/PhysRevD.89.044024 | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present a framework to study generic neutron-star binaries in
scalar-tensor theories of gravity. Our formalism achieves this goal by suitably
interfacing a post-Newtonian orbital evolution (described by a set of ordinary
differential equations) with a set of non-linear algebraic equations, which
provide a descript... | [
{
"created": "Wed, 16 Oct 2013 19:02:05 GMT",
"version": "v1"
},
{
"created": "Thu, 6 Mar 2014 12:28:44 GMT",
"version": "v2"
}
] | 2014-03-07 | [
[
"Palenzuela",
"Carlos",
""
],
[
"Barausse",
"Enrico",
""
],
[
"Ponce",
"Marcelo",
""
],
[
"Lehner",
"Luis",
""
]
] | We present a framework to study generic neutron-star binaries in scalar-tensor theories of gravity. Our formalism achieves this goal by suitably interfacing a post-Newtonian orbital evolution (described by a set of ordinary differential equations) with a set of non-linear algebraic equations, which provide a descriptio... |
1501.00103 | Farhad Darabi | F. Darabi, M. Mousavi, K. Atazadeh | Geodesic Deviation Equation in $f(T)$ gravity | 13 pages, 7 figures | Phys. Rev. D 91, 084023 (2015) | 10.1103/PhysRevD.91.084023 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this work, we show that it is possible to study the notion of geodesic
deviation equation in $f(T)$ gravity, in spite of the fact that in teleparallel
gravity there is no notion of geodesics, and the torsion is responsible for the
appearance of gravitational interaction. In this regard, we obtain the GR
equivalent... | [
{
"created": "Wed, 31 Dec 2014 09:58:47 GMT",
"version": "v1"
},
{
"created": "Tue, 14 Apr 2015 03:57:55 GMT",
"version": "v2"
}
] | 2015-06-23 | [
[
"Darabi",
"F.",
""
],
[
"Mousavi",
"M.",
""
],
[
"Atazadeh",
"K.",
""
]
] | In this work, we show that it is possible to study the notion of geodesic deviation equation in $f(T)$ gravity, in spite of the fact that in teleparallel gravity there is no notion of geodesics, and the torsion is responsible for the appearance of gravitational interaction. In this regard, we obtain the GR equivalent e... |
gr-qc/0612161 | Anil Zengino\u{g}lu C | Anil Zenginoglu, Sascha Husa | Hyperboloidal foliations with scri-fixing in spherical symmetry | 3 pages, 1 figure; uses World Scientific style; submitted to the
Proceedings of the Eleventh Marcel Grossmann Meeting, July 23-29, 2006,
Berlin | null | null | AEI-2006-101 | gr-qc | null | We study in spherical symmetry the conformal compactification for
hyperboloidal foliations with nonvanishing constant mean curvature. The
conformal factor and the coordinates are chosen such that null infinity is at a
fixed radial coordinate location.
| [
{
"created": "Mon, 25 Dec 2006 16:27:08 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Zenginoglu",
"Anil",
""
],
[
"Husa",
"Sascha",
""
]
] | We study in spherical symmetry the conformal compactification for hyperboloidal foliations with nonvanishing constant mean curvature. The conformal factor and the coordinates are chosen such that null infinity is at a fixed radial coordinate location. |
2209.14398 | Tessa Baker | Tessa Baker, Enrico Barausse, Anson Chen, Claudia de Rham, Mauro
Pieroni, and Gianmassimo Tasinato | Testing gravitational wave propagation with multiband detections | 11 pages, 4 figures. Updated to match the version published in JCAP | JCAP03(2023)044 | 10.1088/1475-7516/2023/03/044 | null | gr-qc astro-ph.CO hep-th | http://creativecommons.org/licenses/by/4.0/ | Effective field theories (EFT) of dark energy (DE) -- built to parameterise
the properties of DE in an agnostic manner -- are severely constrained by
measurements of the propagation speed of gravitational waves (GW). However, GW
frequencies probed by ground-based interferometers lie around the typical
strong coupling... | [
{
"created": "Wed, 28 Sep 2022 19:48:20 GMT",
"version": "v1"
},
{
"created": "Mon, 27 Mar 2023 21:58:47 GMT",
"version": "v2"
}
] | 2023-03-29 | [
[
"Baker",
"Tessa",
""
],
[
"Barausse",
"Enrico",
""
],
[
"Chen",
"Anson",
""
],
[
"de Rham",
"Claudia",
""
],
[
"Pieroni",
"Mauro",
""
],
[
"Tasinato",
"Gianmassimo",
""
]
] | Effective field theories (EFT) of dark energy (DE) -- built to parameterise the properties of DE in an agnostic manner -- are severely constrained by measurements of the propagation speed of gravitational waves (GW). However, GW frequencies probed by ground-based interferometers lie around the typical strong coupling s... |
2108.04060 | Gamal G.L. Nashed | G.G.L. Nashed | Anisotropic compact stars in the mimetic gravitational theory | 18 pages, 7 figures 2 tables | The Astrophysical Journal, 919:113, (2021) | 10.3847/1538-4357/ac19bb | null | gr-qc hep-th | http://creativecommons.org/licenses/by/4.0/ | In this paper, we consider the mimetic gravitational theory to derive a novel
category of anisotropic star models. To end and to put the resulting
differential equations into a closed system, the form of the metric potential
$g_{rr}$ as used by Tolman (Tolman 1939) is assumed as well as a linear form of
the equation-... | [
{
"created": "Thu, 5 Aug 2021 18:40:18 GMT",
"version": "v1"
},
{
"created": "Sat, 14 Aug 2021 06:54:43 GMT",
"version": "v2"
},
{
"created": "Fri, 8 Oct 2021 09:26:48 GMT",
"version": "v3"
}
] | 2021-10-11 | [
[
"Nashed",
"G. G. L.",
""
]
] | In this paper, we consider the mimetic gravitational theory to derive a novel category of anisotropic star models. To end and to put the resulting differential equations into a closed system, the form of the metric potential $g_{rr}$ as used by Tolman (Tolman 1939) is assumed as well as a linear form of the equation-of... |
1712.09399 | Anzhong Wang | Fei-hung Ho, Shao-Jun Zhang, Hai-Shan Liu, and Anzhong Wang | Smarr Integral Formula of D-dimensional Stationary Spacetimes in
Einstein-\AE ther-Maxwell Theroy | No figures and tables. Phys. Let. B782 (2018) 723-727 | Phys. Let. B782 (2018) 723-727 | 10.1016/j.physletb.2018.06.027 | null | gr-qc astro-ph.GA hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Using the Wald formalism, we investigate the thermodynamics of charged black
holes in D-dimensional stationary spacetimes with or without rotations in
Einstein-\ae ther-Maxwell theory. In particular, assuming the existence of a
scaling symmetry of the action, we obtain the Smarr integral formula, which can
be applied... | [
{
"created": "Tue, 26 Dec 2017 20:39:31 GMT",
"version": "v1"
},
{
"created": "Sat, 6 Jan 2018 16:46:44 GMT",
"version": "v2"
},
{
"created": "Thu, 10 May 2018 00:10:50 GMT",
"version": "v3"
},
{
"created": "Fri, 15 Jun 2018 07:39:40 GMT",
"version": "v4"
},
{
"cr... | 2018-06-29 | [
[
"Ho",
"Fei-hung",
""
],
[
"Zhang",
"Shao-Jun",
""
],
[
"Liu",
"Hai-Shan",
""
],
[
"Wang",
"Anzhong",
""
]
] | Using the Wald formalism, we investigate the thermodynamics of charged black holes in D-dimensional stationary spacetimes with or without rotations in Einstein-\ae ther-Maxwell theory. In particular, assuming the existence of a scaling symmetry of the action, we obtain the Smarr integral formula, which can be applied t... |
gr-qc/0509097 | Jin Yoshida | John D. Barrow, Yoshida Jin, Kei-ichi Maeda | Cosmological Co-evolution of Yang-Mills Fields and Perfect Fluids | 13 pages, 5 figures, submitted to PRD | Phys.Rev. D72 (2005) 103512 | 10.1103/PhysRevD.72.103512 | null | gr-qc astro-ph | null | We study the co-evolution of Yang-Mills fields and perfect fluids in Bianchi
type I universes. We investigate numerically the evolution of the universe and
the Yang-Mills fields during the radiation and dust eras of a universe that is
almost isotropic. The Yang-Mills field undergoes small amplitude chaotic
oscillatio... | [
{
"created": "Mon, 26 Sep 2005 01:57:56 GMT",
"version": "v1"
},
{
"created": "Tue, 27 Sep 2005 09:04:13 GMT",
"version": "v2"
}
] | 2015-06-25 | [
[
"Barrow",
"John D.",
""
],
[
"Jin",
"Yoshida",
""
],
[
"Maeda",
"Kei-ichi",
""
]
] | We study the co-evolution of Yang-Mills fields and perfect fluids in Bianchi type I universes. We investigate numerically the evolution of the universe and the Yang-Mills fields during the radiation and dust eras of a universe that is almost isotropic. The Yang-Mills field undergoes small amplitude chaotic oscillations... |
1309.4915 | Valerio Faraoni | Valerio Faraoni (Bishop's University) | Evolving black hole horizons in General Relativity and alternative
gravity | 75 pages, 6 figures, invited paper to appear in "Aspects of Black
Hole Physics", special issue of "Galaxies" edited by L. Vanzo | null | null | null | gr-qc math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | From the microscopic point of view, realistic black holes are time-dependent
and the teleological concept of event horizon fails. At present, the apparent
or the trapping horizon seem its best replacements in various areas of black
hole physics. We discuss the known phenomenology of apparent and trapping
horizons for... | [
{
"created": "Thu, 19 Sep 2013 09:52:03 GMT",
"version": "v1"
}
] | 2013-09-20 | [
[
"Faraoni",
"Valerio",
"",
"Bishop's University"
]
] | From the microscopic point of view, realistic black holes are time-dependent and the teleological concept of event horizon fails. At present, the apparent or the trapping horizon seem its best replacements in various areas of black hole physics. We discuss the known phenomenology of apparent and trapping horizons for a... |
2202.08513 | I-Ching Yang | I-Ching Yang | On the energy of Schwarzschild spacetime with the post-Newtonian
approximation | 7 pages | null | 10.1142/S0217732322501383 | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | With the post-Newtonian approxination, the energy of Schwarzschild spacetime
in the Weinberg prescription is obtained. The energy for the first
post-Newtonian approximation $E^{(1)} = m$ gives the Newtonian treatment of
Schwarzschild spacetime. However, for the second post-Newtonian approximation,
the erergy is shown... | [
{
"created": "Thu, 17 Feb 2022 08:36:40 GMT",
"version": "v1"
}
] | 2022-10-05 | [
[
"Yang",
"I-Ching",
""
]
] | With the post-Newtonian approxination, the energy of Schwarzschild spacetime in the Weinberg prescription is obtained. The energy for the first post-Newtonian approximation $E^{(1)} = m$ gives the Newtonian treatment of Schwarzschild spacetime. However, for the second post-Newtonian approximation, the erergy is shown t... |
2204.06437 | Oem Trivedi | Oem Trivedi and Maxim Khlopov | Singularity formation in asymptotically safe cosmology with
inhomogeneous equation of state | v2, 22 pages with no figures with minor changes, matches the
published version in JCAP | JCAP11(2022)007 | 10.1088/1475-7516/2022/11/007 | null | gr-qc hep-th | http://creativecommons.org/licenses/by/4.0/ | Interest in cosmological singularities has remarkably grown in recent times,
particularly on future singularities with the discovery of late-time
acceleration of the universe and dark energy. While such explorations have
previously been done in various modified gravity and quantum gravitationally
inspired cosmologies... | [
{
"created": "Wed, 13 Apr 2022 14:54:54 GMT",
"version": "v1"
},
{
"created": "Wed, 9 Nov 2022 17:55:30 GMT",
"version": "v2"
}
] | 2022-11-10 | [
[
"Trivedi",
"Oem",
""
],
[
"Khlopov",
"Maxim",
""
]
] | Interest in cosmological singularities has remarkably grown in recent times, particularly on future singularities with the discovery of late-time acceleration of the universe and dark energy. While such explorations have previously been done in various modified gravity and quantum gravitationally inspired cosmologies (... |
1704.01590 | Junwu Huang | Solomon Endlich, Victor Gorbenko, Junwu Huang, Leonardo Senatore | An effective formalism for testing extensions to General Relativity with
gravitational waves | v1: 43+16 pages, 11 figures, 2 tables; v2: minor corrections; v3:
minor corrections, JHEP published version | null | 10.1007/JHEP09(2017)122 | null | gr-qc astro-ph.CO astro-ph.HE hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The recent direct observation of gravitational waves (GW) from merging black
holes opens up the possibility of exploring the theory of gravity in the strong
regime at an unprecedented level. It is therefore interesting to explore which
extensions to General Relativity (GR) could be detected. We construct an
Effective... | [
{
"created": "Wed, 5 Apr 2017 18:00:06 GMT",
"version": "v1"
},
{
"created": "Wed, 17 May 2017 18:05:40 GMT",
"version": "v2"
},
{
"created": "Mon, 25 Sep 2017 13:38:33 GMT",
"version": "v3"
}
] | 2017-10-25 | [
[
"Endlich",
"Solomon",
""
],
[
"Gorbenko",
"Victor",
""
],
[
"Huang",
"Junwu",
""
],
[
"Senatore",
"Leonardo",
""
]
] | The recent direct observation of gravitational waves (GW) from merging black holes opens up the possibility of exploring the theory of gravity in the strong regime at an unprecedented level. It is therefore interesting to explore which extensions to General Relativity (GR) could be detected. We construct an Effective F... |
gr-qc/0702123 | Malcolm MacCallum | J. Gariel, M. A. H. MacCallum, G. Marcilhacy and N. O. Santos | Kerr Geodesics, the Penrose Process and Jet Collimation by a Black Hole | Accepted by Astronomy and Astrophysics. AA style with 3 EPS figures.
Content amended after AA's refereeing. Discussion of geodesics also corrected
and expanded earlier. Conclusions amended accordingly | null | 10.1051/0004-6361/200913678 | null | gr-qc astro-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We re-examine the possibility that astrophysical jet collimation may arise
from the geometry of rotating black holes and the presence of high-energy
particles resulting from a Penrose process, without the help of magnetic
fields. Our analysis uses the Weyl coordinates, which are revealed better
adapted to the desired... | [
{
"created": "Fri, 23 Feb 2007 15:50:36 GMT",
"version": "v1"
},
{
"created": "Thu, 11 Jun 2009 16:43:23 GMT",
"version": "v2"
},
{
"created": "Tue, 2 Mar 2010 21:58:34 GMT",
"version": "v3"
}
] | 2023-01-18 | [
[
"Gariel",
"J.",
""
],
[
"MacCallum",
"M. A. H.",
""
],
[
"Marcilhacy",
"G.",
""
],
[
"Santos",
"N. O.",
""
]
] | We re-examine the possibility that astrophysical jet collimation may arise from the geometry of rotating black holes and the presence of high-energy particles resulting from a Penrose process, without the help of magnetic fields. Our analysis uses the Weyl coordinates, which are revealed better adapted to the desired s... |
gr-qc/0301104 | Banibrata Mukhopadhyay | Banibrata Mukhopadhyay and Naresh Dadhich | Scalar and Spinor Perturbation to the Kerr-NUT Spacetime | 31 pages including 20 figures, RevTeX style: Final version to appear
in Classical and Quantum Gravity | Class.Quant.Grav. 21 (2004) 3621-3644 | 10.1088/0264-9381/21/15/001 | null | gr-qc astro-ph | null | We study the scalar and spinor perturbation, namely the Klein-Gordan and
Dirac equations, in the Kerr-NUT space-time. The metric is invariant under the
duality transformation involving the exchange of mass and NUT parameters on one
hand and radial and angle coordinates on the other. We show that this
invariance is al... | [
{
"created": "Fri, 24 Jan 2003 18:14:40 GMT",
"version": "v1"
},
{
"created": "Wed, 9 Jun 2004 15:19:14 GMT",
"version": "v2"
}
] | 2009-11-10 | [
[
"Mukhopadhyay",
"Banibrata",
""
],
[
"Dadhich",
"Naresh",
""
]
] | We study the scalar and spinor perturbation, namely the Klein-Gordan and Dirac equations, in the Kerr-NUT space-time. The metric is invariant under the duality transformation involving the exchange of mass and NUT parameters on one hand and radial and angle coordinates on the other. We show that this invariance is also... |
1311.0062 | Francisco Navarro-Lerida | Jose Luis Blazquez-Salcedo, Jutta Kunz and Francisco Navarro-Lerida | Properties of rotating Einstein-Maxwell-Dilaton black holes in odd
dimensions | 40 pages, 10 figures | Phys. Rev. D 89, 024038 (2014) | 10.1103/PhysRevD.89.024038 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate rotating Einstein-Maxwell-Dilaton (EMd) black holes in odd
dimensions. Focusing on black holes with equal-magnitude angular momenta, we
determine the domain of existence of these black holes. Non-extremal black
holes reside with the boundaries determined by the static and the extremal
rotating black ho... | [
{
"created": "Thu, 31 Oct 2013 23:36:32 GMT",
"version": "v1"
}
] | 2014-09-02 | [
[
"Blazquez-Salcedo",
"Jose Luis",
""
],
[
"Kunz",
"Jutta",
""
],
[
"Navarro-Lerida",
"Francisco",
""
]
] | We investigate rotating Einstein-Maxwell-Dilaton (EMd) black holes in odd dimensions. Focusing on black holes with equal-magnitude angular momenta, we determine the domain of existence of these black holes. Non-extremal black holes reside with the boundaries determined by the static and the extremal rotating black hole... |
gr-qc/0303089 | Chiao | Raymond Y. Chiao and Walter J. Fitelson | Time and Matter in the Interaction between Gravity and Quantum Fluids:
Are there Macroscopic Quantum Transducers between Gravitational and
Electromagnetic waves? | 16 pages, 4 figures, in proceedings of the "Time and Matter"
conference in Venice of 2002, to be published by World Scientific | null | null | null | gr-qc | null | Measurements of the tunneling time are briefly reviewed. Next, time and
matter in general relativity and quantum mechanics is examined. In particular,
the question arises: How does gravitational radiation interact with a coherent
quantum many-body system (a ``quantum fluid'')? A minimal coupling rule for the
coupling... | [
{
"created": "Sun, 23 Mar 2003 22:27:59 GMT",
"version": "v1"
},
{
"created": "Thu, 27 Mar 2003 02:04:02 GMT",
"version": "v2"
},
{
"created": "Thu, 3 Apr 2003 19:02:56 GMT",
"version": "v3"
}
] | 2007-05-23 | [
[
"Chiao",
"Raymond Y.",
""
],
[
"Fitelson",
"Walter J.",
""
]
] | Measurements of the tunneling time are briefly reviewed. Next, time and matter in general relativity and quantum mechanics is examined. In particular, the question arises: How does gravitational radiation interact with a coherent quantum many-body system (a ``quantum fluid'')? A minimal coupling rule for the coupling o... |
2405.18496 | Maxence Corman | Maxence Corman and William E. East | Black hole-neutron star mergers in Einstein-scalar-Gauss-Bonnet gravity | 19 pages,12 figures | null | null | null | gr-qc astro-ph.HE hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Gravitational wave observations of black hole-neutron star binaries,
particularly those where the black hole has a lower mass compared to other
observed systems, have the potential to place strong constraints on
modifications to general relativity that arise at small curvature length
scales. Here we study the dynamic... | [
{
"created": "Tue, 28 May 2024 18:07:44 GMT",
"version": "v1"
}
] | 2024-05-30 | [
[
"Corman",
"Maxence",
""
],
[
"East",
"William E.",
""
]
] | Gravitational wave observations of black hole-neutron star binaries, particularly those where the black hole has a lower mass compared to other observed systems, have the potential to place strong constraints on modifications to general relativity that arise at small curvature length scales. Here we study the dynamics ... |
1502.07644 | Daniel Kapec | Daniel Kapec, Vyacheslav Lysov, Sabrina Pasterski and Andrew
Strominger | Higher-Dimensional Supertranslations and Weinberg's Soft Graviton
Theorem | 24 pages | Annals of Mathematical Sciences and Applications, Volume 2 (2017),
pp 69-94 | 10.4310/AMSA.2017.v2.n1.a2 | null | gr-qc hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Asymptotic symmetries of theories with gravity in d=2m+2 spacetime dimensions
are reconsidered for m>1 in light of recent results concerning d=4 BMS
symmetries. Weinberg's soft graviton theorem in 2m+2 dimensions is re-expressed
as a Ward identity for the gravitational S-matrix. The corresponding asymptotic
symmetrie... | [
{
"created": "Thu, 26 Feb 2015 17:36:09 GMT",
"version": "v1"
}
] | 2017-03-30 | [
[
"Kapec",
"Daniel",
""
],
[
"Lysov",
"Vyacheslav",
""
],
[
"Pasterski",
"Sabrina",
""
],
[
"Strominger",
"Andrew",
""
]
] | Asymptotic symmetries of theories with gravity in d=2m+2 spacetime dimensions are reconsidered for m>1 in light of recent results concerning d=4 BMS symmetries. Weinberg's soft graviton theorem in 2m+2 dimensions is re-expressed as a Ward identity for the gravitational S-matrix. The corresponding asymptotic symmetries ... |
1407.3846 | Sergei Kopeikin | Sergei M. Kopeikin (University of Missouri, USA) and Alexander N.
Petrov (Moscow State University, Russia) | Dynamic Field Theory and Equations of Motion in Cosmology | 62 pages, no figures. Accepted to the Annals of Physics | Annals of Physics, Volume 350, 379-440, 2015 | 10.1016/j.aop.2014.07.029 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We discuss a field-theoretical approach based on variational principle to
derive the field and hydrodynamic equations of motion of baryonic matter
governed by cosmological perturbations of dark matter and dark energy. The
action depends on the gravitational and matter Lagrangian. The gravitational
Lagrangian depends ... | [
{
"created": "Mon, 14 Jul 2014 23:14:11 GMT",
"version": "v1"
},
{
"created": "Thu, 31 Jul 2014 23:11:39 GMT",
"version": "v2"
}
] | 2015-01-27 | [
[
"Kopeikin",
"Sergei M.",
"",
"University of Missouri, USA"
],
[
"Petrov",
"Alexander N.",
"",
"Moscow State University, Russia"
]
] | We discuss a field-theoretical approach based on variational principle to derive the field and hydrodynamic equations of motion of baryonic matter governed by cosmological perturbations of dark matter and dark energy. The action depends on the gravitational and matter Lagrangian. The gravitational Lagrangian depends on... |
0810.0283 | Keith Riles | LIGO Scientific Collaboration | All-sky LIGO Search for Periodic Gravitational Waves in the Early S5
Data | 6 pages, 1 figure | Phys.Rev.Lett.102:111102,2009 | 10.1103/PhysRevLett.102.111102 | LIGO-P080024 | gr-qc astro-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We report on an all-sky search with the LIGO detectors for periodic
gravitational waves in the frequency range 50--1100 Hz and with the frequency's
time derivative in the range -5.0E-9 Hz/s to zero. Data from the first eight
months of the fifth LIGO science run (S5) have been used in this search, which
is based on a ... | [
{
"created": "Wed, 1 Oct 2008 20:36:45 GMT",
"version": "v1"
}
] | 2012-08-27 | [
[
"LIGO Scientific Collaboration",
"",
""
]
] | We report on an all-sky search with the LIGO detectors for periodic gravitational waves in the frequency range 50--1100 Hz and with the frequency's time derivative in the range -5.0E-9 Hz/s to zero. Data from the first eight months of the fifth LIGO science run (S5) have been used in this search, which is based on a se... |
0811.3772 | Sean Carroll | Sean M. Carroll | What if Time Really Exists? | Submission to the Foundational Questions Institute Essay Competition
on "The Nature of Time." | null | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Despite the obvious utility of the concept, it has often been argued that
time does not exist. I take the opposite perspective: let's imagine that time
does exist, and the universe is described by a quantum state obeying ordinary
time-dependent quantum mechanics. Reconciling this simple picture with the
known facts a... | [
{
"created": "Sun, 23 Nov 2008 21:07:47 GMT",
"version": "v1"
}
] | 2008-11-25 | [
[
"Carroll",
"Sean M.",
""
]
] | Despite the obvious utility of the concept, it has often been argued that time does not exist. I take the opposite perspective: let's imagine that time does exist, and the universe is described by a quantum state obeying ordinary time-dependent quantum mechanics. Reconciling this simple picture with the known facts abo... |
0809.2208 | Steven Hergt | Steven Hergt, Gerhard Sch\"afer | Higher-order-in-spin interaction Hamiltonians for binary black holes
from Poincar\'e invariance | REVTeX4, 14 pages; center-of-mass-vector corrected Eq. (2.25) and
modified coefficients of the Hamiltonian Eq. (7.3) and corresponding source
terms Eqs. (7.5) and (7.6) following hereof; version to appear in Phys Rev D | Phys.Rev.D78:124004,2008 | 10.1103/PhysRevD.78.124004 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The fulfillment of the space-asymptotic Poincar\'e algebra is used to derive
new higher-order-in-spin interaction Hamiltonians for binary black holes in the
Arnowitt-Deser-Misner canonical formalism almost completing the set of the
formally $1/c^4$ spin-interaction Hamiltonians involving nonlinear spin terms.
To line... | [
{
"created": "Fri, 12 Sep 2008 13:05:08 GMT",
"version": "v1"
},
{
"created": "Thu, 20 Nov 2008 15:24:10 GMT",
"version": "v2"
}
] | 2008-12-30 | [
[
"Hergt",
"Steven",
""
],
[
"Schäfer",
"Gerhard",
""
]
] | The fulfillment of the space-asymptotic Poincar\'e algebra is used to derive new higher-order-in-spin interaction Hamiltonians for binary black holes in the Arnowitt-Deser-Misner canonical formalism almost completing the set of the formally $1/c^4$ spin-interaction Hamiltonians involving nonlinear spin terms. To linear... |
1009.0455 | Rolando Gaitan Deveras RGD | Rolando Gaitan Deveras | On unitarity of a linearized Yang-Mills formulation for massless and
massive gravity with propagating torsion | To appear in International Journal of Modern Physics A | Int.J.Mod.Phys.A25:4911-4932,2010 | 10.1142/S0217751X10050561 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A perturbative regime based on contortion as a dynamical variable and metric
as a (classical) fixed background, is performed in the context of a pure
Yang-Mills formulation for gravity in a $2+1$ dimensional space-time. In the
massless case we show that the theory contains three degrees of freedom and
only one is a n... | [
{
"created": "Thu, 2 Sep 2010 15:55:20 GMT",
"version": "v1"
}
] | 2010-11-05 | [
[
"Deveras",
"Rolando Gaitan",
""
]
] | A perturbative regime based on contortion as a dynamical variable and metric as a (classical) fixed background, is performed in the context of a pure Yang-Mills formulation for gravity in a $2+1$ dimensional space-time. In the massless case we show that the theory contains three degrees of freedom and only one is a non... |
1505.01104 | Ahmad Sheykhi | M. Honarvaryan, A. Sheykhi, H. Moradpour | Thermodynamical description of the ghost dark energy model | 11 pages | Int. J. Mod. Phys. D 2 Vol. 24, No. 6 (2015) 1550048 | 10.1142/S0218271815500480 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper, we point out thermodynamical description of ghost dark energy
and its generalization to the early universe. Thereinafter, we find expressions
for the entropy changes of these dark energy candidates. In addition,
considering thermal fluctuations, thermodynamics of the dark energy component
interacting w... | [
{
"created": "Sat, 2 May 2015 13:28:30 GMT",
"version": "v1"
}
] | 2015-05-06 | [
[
"Honarvaryan",
"M.",
""
],
[
"Sheykhi",
"A.",
""
],
[
"Moradpour",
"H.",
""
]
] | In this paper, we point out thermodynamical description of ghost dark energy and its generalization to the early universe. Thereinafter, we find expressions for the entropy changes of these dark energy candidates. In addition, considering thermal fluctuations, thermodynamics of the dark energy component interacting wit... |
2304.12935 | S Habib Mazharimousavi | S. Habib Mazharimousavi | Dirty black hole supported by a uniform electric field in
Einstein-Nonlinear Electrodynamics-Dilaton theory | 16 pages 6 figures, final copy with minor corrections in figures 5
and 6, published in EPJC | Eur. Phys. J. C (2023) 83:406 | 10.1140/epjc/s10052-023-11544-5 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this study, we present an exact dirty/hairy black hole solution in the
context of gravity coupled minimally to a nonlinear electrodynamic (NED) and a
Dilaton field. The NED model is known in the literature as the square-root (SR)
model i.e., $\mathcal{L}\sim \sqrt{-\mathcal{F}}.$ The black hole solution
which is s... | [
{
"created": "Mon, 24 Apr 2023 13:53:51 GMT",
"version": "v1"
},
{
"created": "Wed, 24 May 2023 20:51:02 GMT",
"version": "v2"
}
] | 2023-05-26 | [
[
"Mazharimousavi",
"S. Habib",
""
]
] | In this study, we present an exact dirty/hairy black hole solution in the context of gravity coupled minimally to a nonlinear electrodynamic (NED) and a Dilaton field. The NED model is known in the literature as the square-root (SR) model i.e., $\mathcal{L}\sim \sqrt{-\mathcal{F}}.$ The black hole solution which is sup... |
2104.14400 | Oleksandr Sobol Dr. | O.O. Sobol, E.V. Gorbar, O.M. Teslyk, and S.I. Vilchinskii | Generation of an electromagnetic field nonminimally coupled to gravity
during Higgs inflation | 23 pages, 10 figures | Phys. Rev. D 104, 043509 (2021) | 10.1103/PhysRevD.104.043509 | null | gr-qc hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In the framework of Higgs inflation, we consider the electromagnetic field
nonminimally coupled to gravity via the parity-preserving $\propto RF^{2}$ and
parity-violating $\propto RF\tilde{F}$ terms. Using the perturbation theory to
the leading order in these couplings, we study the generation of the
electromagnetic ... | [
{
"created": "Tue, 27 Apr 2021 13:25:04 GMT",
"version": "v1"
},
{
"created": "Thu, 5 Aug 2021 14:41:29 GMT",
"version": "v2"
}
] | 2021-08-11 | [
[
"Sobol",
"O. O.",
""
],
[
"Gorbar",
"E. V.",
""
],
[
"Teslyk",
"O. M.",
""
],
[
"Vilchinskii",
"S. I.",
""
]
] | In the framework of Higgs inflation, we consider the electromagnetic field nonminimally coupled to gravity via the parity-preserving $\propto RF^{2}$ and parity-violating $\propto RF\tilde{F}$ terms. Using the perturbation theory to the leading order in these couplings, we study the generation of the electromagnetic fi... |
1705.05521 | Hiromi Saida | Hiromi Saida | An Axiomatic Review of Israel-Stewart Hydrodynamics and Extended
Irreversible Thermodynamics | 19 pages, 1 figure | null | null | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The causality of dissipative phenomena can not be treated in traditional
theories of dissipations, Fourier laws and Navier-Stokes equations. This is the
reason why the dissipative phenomena have not been studies well in relativistic
situations. Furthermore, the interactions among dissipations, e.g. the heating
of flu... | [
{
"created": "Tue, 16 May 2017 04:19:55 GMT",
"version": "v1"
}
] | 2017-05-17 | [
[
"Saida",
"Hiromi",
""
]
] | The causality of dissipative phenomena can not be treated in traditional theories of dissipations, Fourier laws and Navier-Stokes equations. This is the reason why the dissipative phenomena have not been studies well in relativistic situations. Furthermore, the interactions among dissipations, e.g. the heating of fluid... |
2012.14984 | Manuel Hohmann | Manuel Hohmann | xPPN: An implementation of the parametrized post-Newtonian formalism
using xAct for Mathematica | 35 pages, no figures, journal version | Eur. Phys. J. C 81 (2021) 504 | 10.1140/epjc/s10052-021-09183-9 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present a package for the computer algebra system Mathematica, which
implements the parametrized post-Newtonian (PPN) formalism. This package, named
xPPN, is built upon the widely used tensor algebra package suite xAct, and in
particular the package xTensor therein. The main feature of xPPN is to provide
functions... | [
{
"created": "Wed, 30 Dec 2020 00:12:37 GMT",
"version": "v1"
},
{
"created": "Thu, 17 Jun 2021 14:13:23 GMT",
"version": "v2"
}
] | 2021-06-18 | [
[
"Hohmann",
"Manuel",
""
]
] | We present a package for the computer algebra system Mathematica, which implements the parametrized post-Newtonian (PPN) formalism. This package, named xPPN, is built upon the widely used tensor algebra package suite xAct, and in particular the package xTensor therein. The main feature of xPPN is to provide functions t... |
gr-qc/9308018 | Donald Marolf | Jorma Louko and Donald M. Marolf | Solution space of 2+1 gravity on ${\bf R} \times T^2$ in Witten's
connection formulation | 23 pages, REVTeX v3.0, SU-GP-93/7-6, CGPG-93/8-3. (Discussion on the
gauge equivalence of degenerate and nondegenerate metrics extended.) | Class.Quant.Grav.11:311-330,1994 | 10.1088/0264-9381/11/2/005 | null | gr-qc hep-th | null | We investigate the space ${\cal M}$ of classical solutions to Witten's
formulation of 2+1 gravity on the manifold ${\bf R} \times T^2$. ${\cal M}$ is
connected, unlike the spaces of classical solutions in the cases where $T^2$ is
replaced by a higher genus surface. Although ${\cal M}$ is neither Hausdorff
nor a manif... | [
{
"created": "Thu, 19 Aug 1993 22:51:00 GMT",
"version": "v1"
},
{
"created": "Wed, 17 Nov 1993 23:25:00 GMT",
"version": "v2"
}
] | 2010-04-06 | [
[
"Louko",
"Jorma",
""
],
[
"Marolf",
"Donald M.",
""
]
] | We investigate the space ${\cal M}$ of classical solutions to Witten's formulation of 2+1 gravity on the manifold ${\bf R} \times T^2$. ${\cal M}$ is connected, unlike the spaces of classical solutions in the cases where $T^2$ is replaced by a higher genus surface. Although ${\cal M}$ is neither Hausdorff nor a manifol... |
2004.08065 | Igor Fomin | Igor Fomin | Gauss-Bonnet term corrections in scalar field cosmology | 18 pages | null | 10.1140/epjc/s10052-020-08718-w | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The influence of non-minimal coupling of a scalar field and the Gauss-Bonnet
term on the inflationary stage of evolution of the universe is investigated in
this paper. The main cosmological effects of such a coupling were considered.
The deviations between Einstein-Gauss-Bonnet inflation and standard one based
on Ein... | [
{
"created": "Fri, 17 Apr 2020 05:17:15 GMT",
"version": "v1"
},
{
"created": "Sat, 4 Jul 2020 13:48:09 GMT",
"version": "v2"
}
] | 2020-12-30 | [
[
"Fomin",
"Igor",
""
]
] | The influence of non-minimal coupling of a scalar field and the Gauss-Bonnet term on the inflationary stage of evolution of the universe is investigated in this paper. The main cosmological effects of such a coupling were considered. The deviations between Einstein-Gauss-Bonnet inflation and standard one based on Einst... |
0905.2000 | Luca Perotti | Daniel Bessis and Luca Perotti | J-transform applied to the detection of Gravitational Waves: preliminary
results | 12 pages, 7 figures | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We propose to apply to the detection of Gravitational Waves a new method
developed for the spectral analysis of noisy time-series of damped oscillators.
From the Pad\'e Approximations of the time-series Z-transform, a Jacobi
Matrix (J-Matrix) is constructed. We show that the J-Matrix has bound states
with eigenvalu... | [
{
"created": "Wed, 13 May 2009 02:09:41 GMT",
"version": "v1"
}
] | 2009-05-14 | [
[
"Bessis",
"Daniel",
""
],
[
"Perotti",
"Luca",
""
]
] | We propose to apply to the detection of Gravitational Waves a new method developed for the spectral analysis of noisy time-series of damped oscillators. From the Pad\'e Approximations of the time-series Z-transform, a Jacobi Matrix (J-Matrix) is constructed. We show that the J-Matrix has bound states with eigenvalues s... |
1001.1564 | Viktor Toth | John W. Moffat and Viktor T. Toth | Modified Jordan-Brans-Dicke theory with scalar current and the
Eddington-Robertson gamma-parameter | 7 pages, accepted for publication in International Journal of Modern
Physics D | Int. J. Mod. Phys. D21, No. 12 (2012) 1250084 | 10.1142/S0218271812500848 | null | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The Jordan-Brans-Dicke theory of gravitation, which promotes the
gravitational constant to a dynamical scalar field, predicts a value for the
Eddington-Robertson post-Newtonian parameter gamma that is significantly
different from the general relativistic value of unity. This contradicts
precision solar system measure... | [
{
"created": "Mon, 11 Jan 2010 20:42:30 GMT",
"version": "v1"
},
{
"created": "Tue, 2 Feb 2010 02:12:27 GMT",
"version": "v2"
},
{
"created": "Fri, 5 Oct 2012 17:38:06 GMT",
"version": "v3"
}
] | 2012-12-12 | [
[
"Moffat",
"John W.",
""
],
[
"Toth",
"Viktor T.",
""
]
] | The Jordan-Brans-Dicke theory of gravitation, which promotes the gravitational constant to a dynamical scalar field, predicts a value for the Eddington-Robertson post-Newtonian parameter gamma that is significantly different from the general relativistic value of unity. This contradicts precision solar system measureme... |
gr-qc/0202022 | L. C. Garcia de Andrade | L.C.Garcia de Andrade | Metric perturbations in Einstein-Cartan Cosmology | Latex file | null | null | null | gr-qc | null | Metric perturbations the stability of solution of Einstein-Cartan cosmology
(ECC) are given. The first addresses the stability of solutions of
Einstein-Cartan (EC) cosmological model against Einstein static universe
background. In this solution we show that the metric is stable against
first-order perturbations and c... | [
{
"created": "Thu, 7 Feb 2002 08:47:34 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"de Andrade",
"L. C. Garcia",
""
]
] | Metric perturbations the stability of solution of Einstein-Cartan cosmology (ECC) are given. The first addresses the stability of solutions of Einstein-Cartan (EC) cosmological model against Einstein static universe background. In this solution we show that the metric is stable against first-order perturbations and cor... |
2108.01461 | Francisco Fern\'andez-\'Alvarez | Francisco Fern\'andez-\'Alvarez and Jos\'e M. M. Senovilla | The peeling theorem with arbitrary cosmological constant | 10 pages, 1 figure | Class. Quant. Grav. 39 10LT01 2022 | 10.1088/1361-6382/ac528b | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A method for deriving the asymptotic behaviour of any physical field is
presented. This leads to a geometrically meaningful derivation of the peeling
properties for arbitrary values of the cosmological constant. Application to
the outstanding case of the physical Weyl tensor provides the explicit form of
all terms th... | [
{
"created": "Tue, 3 Aug 2021 12:55:21 GMT",
"version": "v1"
}
] | 2022-08-23 | [
[
"Fernández-Álvarez",
"Francisco",
""
],
[
"Senovilla",
"José M. M.",
""
]
] | A method for deriving the asymptotic behaviour of any physical field is presented. This leads to a geometrically meaningful derivation of the peeling properties for arbitrary values of the cosmological constant. Application to the outstanding case of the physical Weyl tensor provides the explicit form of all terms that... |
0811.0655 | Molin Liu | Molin Liu and Hongya Liu | The Dynamic Behavior of Quantum Statistical Entropy in 5D Ricci-flat
Black String with Thin-layer Approach | 9 pages, 1 figure, this work is dedicated to the memory of Professor
Hongya Liu | Phys.Lett.B661:365-369,2008 | 10.1016/j.physletb.2008.02.037 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper, the statistical-mechanical entropies of 5D Ricci-flat black
string is calculated through the wave modes of the quantum field with improved
thin-layer brick-wall method. The modes along the fifth dimension are
semi-classically quantized by Randall-Sundrum mass relationship. We use the
two-dimensional ar... | [
{
"created": "Wed, 5 Nov 2008 06:57:30 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Liu",
"Molin",
""
],
[
"Liu",
"Hongya",
""
]
] | In this paper, the statistical-mechanical entropies of 5D Ricci-flat black string is calculated through the wave modes of the quantum field with improved thin-layer brick-wall method. The modes along the fifth dimension are semi-classically quantized by Randall-Sundrum mass relationship. We use the two-dimensional area... |
1107.1566 | Alexander Garkun S. | A.S. Garkun, V.I. Kudin, A.V. Minkevich and Yu.G. Vasilevsky | Numerical analysis of cosmological models for accelerating Universe in
Poincare gauge theory of gravity | 19 pages, 6 figures, jcappub style file | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Homogeneous isotropic models with two torsion functions built in the
framework of the Poincare gauge theory of gravity based on general expression
of gravitational Lagrangian by certain restrictions on indefinite parameters
are analyzed numerically. Special points of cosmological solutions at
asymptotics and conditio... | [
{
"created": "Fri, 8 Jul 2011 06:46:49 GMT",
"version": "v1"
}
] | 2015-03-19 | [
[
"Garkun",
"A. S.",
""
],
[
"Kudin",
"V. I.",
""
],
[
"Minkevich",
"A. V.",
""
],
[
"Vasilevsky",
"Yu. G.",
""
]
] | Homogeneous isotropic models with two torsion functions built in the framework of the Poincare gauge theory of gravity based on general expression of gravitational Lagrangian by certain restrictions on indefinite parameters are analyzed numerically. Special points of cosmological solutions at asymptotics and conditions... |
gr-qc/0501020 | J. Mark Heinzle | Robert Beig, J. Mark Heinzle | CMC-Slicings of Kottler-Schwarzschild-de Sitter Cosmologies | 39 pages, 14 figures; some remarks added, to appear in Commun. Math.
Phys | Commun.Math.Phys. 260 (2005) 673-709 | 10.1007/s00220-005-1431-5 | null | gr-qc | null | There is constructed, for each member of a one-parameter family of
cosmological models, which is obtained from the Kottler-Schwarzschild-de Sitter
spacetime by identification under discrete isometries, a slicing by spherically
symmetric Cauchy hypersurfaces of constant mean curvature. These slicings are
unique up to ... | [
{
"created": "Fri, 7 Jan 2005 17:36:06 GMT",
"version": "v1"
},
{
"created": "Wed, 9 Feb 2005 14:55:46 GMT",
"version": "v2"
}
] | 2009-11-11 | [
[
"Beig",
"Robert",
""
],
[
"Heinzle",
"J. Mark",
""
]
] | There is constructed, for each member of a one-parameter family of cosmological models, which is obtained from the Kottler-Schwarzschild-de Sitter spacetime by identification under discrete isometries, a slicing by spherically symmetric Cauchy hypersurfaces of constant mean curvature. These slicings are unique up to th... |
1212.3271 | Aaron Zimmerman | Huan Yang, Fan Zhang, Aaron Zimmerman, David A. Nichols, Emanuele
Berti, Yanbei Chen | Branching of quasinormal modes for nearly extremal Kerr black holes | 5 pages, 3 figures | Phys. Rev. D 87, 041502(R) (2013) | 10.1103/PhysRevD.87.041502 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We show that nearly extremal Kerr black holes have two distinct sets of
quasinormal modes, which we call zero-damping modes (ZDMs) and damped modes
(DMs). The ZDMs exist for all harmonic indices $l$ and $m \ge 0$, and their
frequencies cluster onto the real axis in the extremal limit. The DMs have
nonzero damping for... | [
{
"created": "Thu, 13 Dec 2012 19:08:12 GMT",
"version": "v1"
}
] | 2013-03-05 | [
[
"Yang",
"Huan",
""
],
[
"Zhang",
"Fan",
""
],
[
"Zimmerman",
"Aaron",
""
],
[
"Nichols",
"David A.",
""
],
[
"Berti",
"Emanuele",
""
],
[
"Chen",
"Yanbei",
""
]
] | We show that nearly extremal Kerr black holes have two distinct sets of quasinormal modes, which we call zero-damping modes (ZDMs) and damped modes (DMs). The ZDMs exist for all harmonic indices $l$ and $m \ge 0$, and their frequencies cluster onto the real axis in the extremal limit. The DMs have nonzero damping for a... |
2202.08608 | Tao Yang | Tao Yang, Rong-Gen Cai, Zhoujian Cao, Hyung Mok Lee | Eccentricity of Long Inspiraling Compact Binaries Sheds Light on Dark
Sirens | 6 pages, 2 figures, to match the published PRL version | Phys. Rev. Lett. 129, 191102 (2022) | 10.1103/PhysRevLett.129.191102 | null | gr-qc astro-ph.CO astro-ph.HE astro-ph.IM | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The localization and distance inference of gravitational waves are two
crucial factors for dark sirens as precise probes of cosmology, astrophysics,
and fundamental physics. In this Letter, for the first time we investigate the
parameter estimation of gravitational waves emitted by the eccentric compact
binaries in t... | [
{
"created": "Thu, 17 Feb 2022 11:43:14 GMT",
"version": "v1"
},
{
"created": "Mon, 31 Oct 2022 15:53:00 GMT",
"version": "v2"
}
] | 2022-11-01 | [
[
"Yang",
"Tao",
""
],
[
"Cai",
"Rong-Gen",
""
],
[
"Cao",
"Zhoujian",
""
],
[
"Lee",
"Hyung Mok",
""
]
] | The localization and distance inference of gravitational waves are two crucial factors for dark sirens as precise probes of cosmology, astrophysics, and fundamental physics. In this Letter, for the first time we investigate the parameter estimation of gravitational waves emitted by the eccentric compact binaries in the... |
2007.12636 | Jhonny Andres Agudelo Ruiz J. A. Agudelo Ruiz | Jhonny A. Agudelo Ruiz, J\'ulio C. Fabris, Alan M. Velasquez-Toribio
and Ilya L. Shapiro | Constraints from observational data for a running cosmological constant
and warm dark matter with curvature | 19 pages, 3 figures, 1 table. Two misprints corrected, accepted in
"Gravitation and Cosmology" | Gravitation and Cosmology, 26, Issue 4 (2020) 316-325 | 10.1134/S0202289320040106 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | It is known than the inclusion of spatial curvature can modify the evolution
of matter perturbations and affect the Large Scale Structure (LSS) formation.
We quantify the effects of the non-zero space curvature in terms of LSS
formation for a cosmological model with a running vacuum energy density and a
warm dark mat... | [
{
"created": "Fri, 24 Jul 2020 16:43:53 GMT",
"version": "v1"
},
{
"created": "Sun, 23 Aug 2020 19:10:57 GMT",
"version": "v2"
}
] | 2020-12-08 | [
[
"Ruiz",
"Jhonny A. Agudelo",
""
],
[
"Fabris",
"Júlio C.",
""
],
[
"Velasquez-Toribio",
"Alan M.",
""
],
[
"Shapiro",
"Ilya L.",
""
]
] | It is known than the inclusion of spatial curvature can modify the evolution of matter perturbations and affect the Large Scale Structure (LSS) formation. We quantify the effects of the non-zero space curvature in terms of LSS formation for a cosmological model with a running vacuum energy density and a warm dark matte... |
gr-qc/9908057 | Bernhard Haisch | Bernhard Haisch and Alfonso Rueda | The Zero-Point Field and Inertia | 8 pages, no figs | in "Causality and Locality in Modern Physics" (G. Hunter, S.
Jeffers, J.-P. Vigier (eds.), Kluwer Acad. Publ., pp. 171-178, (1998) | null | null | gr-qc | null | A brief overview is presented of the basis of the electromagnetic zero-point
field in quantum physics and its representation in stochastic electrodynamics.
Two approaches have led to the proposal that the inertia of matter may be
explained as an electromagnetic reaction force. The first is based on the
modeling of qu... | [
{
"created": "Thu, 19 Aug 1999 22:10:33 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Haisch",
"Bernhard",
""
],
[
"Rueda",
"Alfonso",
""
]
] | A brief overview is presented of the basis of the electromagnetic zero-point field in quantum physics and its representation in stochastic electrodynamics. Two approaches have led to the proposal that the inertia of matter may be explained as an electromagnetic reaction force. The first is based on the modeling of quar... |
gr-qc/0503080 | Ronghua Pan | Ronghua Pan and Joel A. Smoller | Blowup of smooth solutions for relativistic Euler equations | 30 pages | Commun.Math.Phys. 262 (2006) 729-755 | 10.1007/s00220-005-1464-9 | null | gr-qc math-ph math.AP math.MP | null | We study the singularity formation of smooth solutions of the relativistic
Euler equations in $(3+1)$-dimensional spacetime for both finite initial energy
and infinite initial energy. For the finite initial energy case, we prove that
any smooth solution, with compactly supported non-trivial initial data, blows
up in ... | [
{
"created": "Fri, 18 Mar 2005 19:19:42 GMT",
"version": "v1"
}
] | 2009-11-11 | [
[
"Pan",
"Ronghua",
""
],
[
"Smoller",
"Joel A.",
""
]
] | We study the singularity formation of smooth solutions of the relativistic Euler equations in $(3+1)$-dimensional spacetime for both finite initial energy and infinite initial energy. For the finite initial energy case, we prove that any smooth solution, with compactly supported non-trivial initial data, blows up in fi... |
gr-qc/0703005 | Christos Tsagas | Christos G. Tsagas | On constraint-consistency, covariant operators, gauge-invariance, etc | 4 pages | null | null | null | gr-qc | null | We look at the covariant techniques and the ideas on constraints and
gauge-invariance, which were recently employed in [gr-qc/0702104] to support
earlier work by the same authors. That work was criticised in [gr-qc/0503042].
Using very simple and well known examples we show that, when adopted, the
methods and views o... | [
{
"created": "Thu, 1 Mar 2007 18:14:32 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Tsagas",
"Christos G.",
""
]
] | We look at the covariant techniques and the ideas on constraints and gauge-invariance, which were recently employed in [gr-qc/0702104] to support earlier work by the same authors. That work was criticised in [gr-qc/0503042]. Using very simple and well known examples we show that, when adopted, the methods and views of ... |
1204.3696 | Alexis Larranaga PhD | Alexis Larranaga, Sindi Mojica | Geometric Thermodynamics of Kerr-AdS black hole with a Cosmological
Constant as State Variable | 10 pages, no figures. arXiv admin note: substantial text overlap with
arXiv:1108.2205 | The Abraham Zelmanov Journal. 5. 68-77 (2012) | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The thermodynamics of the Kerr-AdS black hole is reformulated within the
context of the formalism of geometrothermodynamics (GTD) and the cosmological
constant is considered as a new thermodynamical parameter. We conclude that the
mass of the black hole corresponds to the total enthalpy of this system.
Choosing appro... | [
{
"created": "Tue, 17 Apr 2012 03:57:51 GMT",
"version": "v1"
}
] | 2012-04-18 | [
[
"Larranaga",
"Alexis",
""
],
[
"Mojica",
"Sindi",
""
]
] | The thermodynamics of the Kerr-AdS black hole is reformulated within the context of the formalism of geometrothermodynamics (GTD) and the cosmological constant is considered as a new thermodynamical parameter. We conclude that the mass of the black hole corresponds to the total enthalpy of this system. Choosing appropr... |
1311.6319 | Giulia Ricciardi | Salvatore Capozziello, Mariafelicia De Laurentis, Mariacristina
Paolella, Giulia Ricciardi | Effective field theory from modified gravity with massive modes | 11 pages, no figures; title and text match published version | Int.J.Geom.Meth.Mod.Phys. 12 (2015) 1550004 | 10.1142/S0219887815500048 | null | gr-qc astro-ph.CO hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Massive gravitational modes in effective field theories can be recovered by
extending General Relativity and taking into account generic functions of the
curvature invariants, not necessarily linear in the Ricci scalar R. In
particular, adopting the minimal extension of f(R) gravity, an effective field
theory with ma... | [
{
"created": "Mon, 25 Nov 2013 14:44:42 GMT",
"version": "v1"
},
{
"created": "Fri, 29 Nov 2013 16:41:30 GMT",
"version": "v2"
},
{
"created": "Wed, 21 Jan 2015 15:39:50 GMT",
"version": "v3"
}
] | 2015-01-22 | [
[
"Capozziello",
"Salvatore",
""
],
[
"De Laurentis",
"Mariafelicia",
""
],
[
"Paolella",
"Mariacristina",
""
],
[
"Ricciardi",
"Giulia",
""
]
] | Massive gravitational modes in effective field theories can be recovered by extending General Relativity and taking into account generic functions of the curvature invariants, not necessarily linear in the Ricci scalar R. In particular, adopting the minimal extension of f(R) gravity, an effective field theory with mass... |
1607.03099 | Michael Kalisch | Michael Kalisch and Marcus Ansorg | Pseudo-spectral construction of non-uniform black string solutions in
five and six spacetime dimensions | null | Michael Kalisch and Marcus Ansorg 2016 Class. Quantum Grav. 33
215005 | 10.1088/0264-9381/33/21/215005 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper, we describe in detail a scheme for the construction of highly
accurate numerical solutions to Einstein's field equations in five and six
spacetime dimensions corresponding to non-uniform black strings. The scheme
consists of a sophistically adapted multi-domain pseudo-spectral method which
incorporates... | [
{
"created": "Mon, 11 Jul 2016 19:59:21 GMT",
"version": "v1"
},
{
"created": "Wed, 13 Jul 2016 05:58:09 GMT",
"version": "v2"
}
] | 2016-10-20 | [
[
"Kalisch",
"Michael",
""
],
[
"Ansorg",
"Marcus",
""
]
] | In this paper, we describe in detail a scheme for the construction of highly accurate numerical solutions to Einstein's field equations in five and six spacetime dimensions corresponding to non-uniform black strings. The scheme consists of a sophistically adapted multi-domain pseudo-spectral method which incorporates a... |
2108.06582 | Gerardo Garc\'ia-Moreno | Carlos Barcel\'o, Ra\'ul Carballo-Rubio, Luis J. Garay, Gerardo
Garc\'ia-Moreno | Toward a mechanism for the emergence of gravity | 35 pages, 1 figure; Contribution to the Special Issue Analogue
Gravitational Dynamics; v2: Minor changes introduced in the text to match the
published version | Appl. Sci. 2021, 11(18), 8763 | 10.3390/app11188763 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | One of the main problems that emergent-gravity approaches face is explaining
how a system that does not contain gauge symmetries ab initio might develop
them effectively in some regime. We review a mechanism introduced by some of
the authors for the emergence of gauge symmetries in [JHEP 10 (2016) 084] and
discuss ho... | [
{
"created": "Sat, 14 Aug 2021 16:49:52 GMT",
"version": "v1"
},
{
"created": "Tue, 21 Sep 2021 14:02:05 GMT",
"version": "v2"
}
] | 2021-09-22 | [
[
"Barceló",
"Carlos",
""
],
[
"Carballo-Rubio",
"Raúl",
""
],
[
"Garay",
"Luis J.",
""
],
[
"García-Moreno",
"Gerardo",
""
]
] | One of the main problems that emergent-gravity approaches face is explaining how a system that does not contain gauge symmetries ab initio might develop them effectively in some regime. We review a mechanism introduced by some of the authors for the emergence of gauge symmetries in [JHEP 10 (2016) 084] and discuss how ... |
gr-qc/0408082 | Jeanette E. Nelson | J. E. Nelson (University of Turin, Italy) and R. F. Picken (Instituto
Superior Tecnico, Lisbon, Portugal) | Quantum Holonomies in (2+1)-Dimensional Gravity | 5 pages, to appear in the proceedings of 10th Marcel Grossmann
Meeting on Recent Developments in Theoretical and Experimental General
Relativity, Gravitation and Relativistic Field Theories (MG X MMIII), Rio de
Janeiro, Brazil, 20-26 Jul 2003 | null | 10.1142/9789812704030_0318 | null | gr-qc | null | We describe an approach to the quantization of (2+1)--dimensional gravity
with topology R x T^2 and negative cosmological constant, which uses two
quantum holonomy matrices satisfying a q--commutation relation. Solutions of
diagonal and upper--triangular form are constructed, which in the latter case
exhibit addition... | [
{
"created": "Wed, 25 Aug 2004 12:11:14 GMT",
"version": "v1"
}
] | 2016-11-09 | [
[
"Nelson",
"J. E.",
"",
"University of Turin, Italy"
],
[
"Picken",
"R. F.",
"",
"Instituto\n Superior Tecnico, Lisbon, Portugal"
]
] | We describe an approach to the quantization of (2+1)--dimensional gravity with topology R x T^2 and negative cosmological constant, which uses two quantum holonomy matrices satisfying a q--commutation relation. Solutions of diagonal and upper--triangular form are constructed, which in the latter case exhibit additional... |
1504.06866 | Vasilis Oikonomou | S.D. Odintsov, V.K. Oikonomou | Bouncing cosmology with future singularity from modified gravity | PRD version | null | 10.1103/PhysRevD.92.024016 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate which Jordan frame $F(R)$ gravity can describe a Type IV
singular bouncing cosmological evolution, with special emphasis given near the
point at which the Type IV singularity occurs. The cosmological bounce is
chosen in such a way so that the bouncing point coincides exactly with Type IV
singularity po... | [
{
"created": "Sun, 26 Apr 2015 18:52:27 GMT",
"version": "v1"
},
{
"created": "Sat, 27 Jun 2015 09:47:40 GMT",
"version": "v2"
}
] | 2015-08-06 | [
[
"Odintsov",
"S. D.",
""
],
[
"Oikonomou",
"V. K.",
""
]
] | We investigate which Jordan frame $F(R)$ gravity can describe a Type IV singular bouncing cosmological evolution, with special emphasis given near the point at which the Type IV singularity occurs. The cosmological bounce is chosen in such a way so that the bouncing point coincides exactly with Type IV singularity poin... |
2404.03682 | Muhammad Zubair | M. Zubair, Saira Waheed, Quratulien Muneer, M. Ahmad | Thermodynamics and Perturbative Analysis of Some Newly Developed
$\mathcal{F}(R,L_m, T)$ Theories Under the Scenario of Conserved
Energy-momentum Tensor | 24 pages, 13 figures | Fortschr. Phys. 2023, 71, 2300018 | 10.1002/prop.202300018 | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | The present work is devoted to explore some interesting cosmological features
of a newly proposed theory of gravity namely $\mathcal{F}(R,L_m,T)$ theory,
where $R$ and $T$ represent the Ricci scalar and trace of energy
momentum-tensor, respectively. Firstly, a non-equilibrium thermodynamical
description is considered... | [
{
"created": "Mon, 1 Apr 2024 06:43:21 GMT",
"version": "v1"
},
{
"created": "Mon, 8 Apr 2024 05:04:01 GMT",
"version": "v2"
}
] | 2024-04-09 | [
[
"Zubair",
"M.",
""
],
[
"Waheed",
"Saira",
""
],
[
"Muneer",
"Quratulien",
""
],
[
"Ahmad",
"M.",
""
]
] | The present work is devoted to explore some interesting cosmological features of a newly proposed theory of gravity namely $\mathcal{F}(R,L_m,T)$ theory, where $R$ and $T$ represent the Ricci scalar and trace of energy momentum-tensor, respectively. Firstly, a non-equilibrium thermodynamical description is considered o... |
1709.02197 | Genly Le\'on | L. Karpathopoulos, S. Basilakos, G. Leon (Catolica del Norte U.), A.
Paliathanasis, and M. Tsamparlis | Cartan symmetries and global dynamical systems analysis in a
higher-order modified teleparallel theory | Minor changes; accepted for publication by General Relativity and
Gravitation | null | 10.1007/s10714-018-2400-6 | null | gr-qc astro-ph.CO math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In a higher-order modified teleparallel theory cosmological we present
analytical cosmological solutions. In particular we determine forms of the
unknown potential which drives the scalar field such that the field equations
form a Liouville integrable system. For the determination of the conservation
laws we apply th... | [
{
"created": "Thu, 7 Sep 2017 12:15:40 GMT",
"version": "v1"
},
{
"created": "Fri, 8 Jun 2018 17:31:34 GMT",
"version": "v2"
}
] | 2018-06-11 | [
[
"Karpathopoulos",
"L.",
"",
"Catolica del Norte U."
],
[
"Basilakos",
"S.",
"",
"Catolica del Norte U."
],
[
"Leon",
"G.",
"",
"Catolica del Norte U."
],
[
"Paliathanasis",
"A.",
""
],
[
"Tsamparlis",
"M.",
""
]
] | In a higher-order modified teleparallel theory cosmological we present analytical cosmological solutions. In particular we determine forms of the unknown potential which drives the scalar field such that the field equations form a Liouville integrable system. For the determination of the conservation laws we apply the ... |
2407.18975 | Arun Kenath Dr | Louise Rebecca, C Sivaram, Dominic Sebastian, Kenath Arun | Can Hubble tension be eased by invoking a finite range for gravity? | 12 pages, 2 figures, 28 equations | Modern Physics Letters A, 2450073, 2024 | 10.1142/S0217732324500731 | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | The estimation of the Hubble constant in the past few decades has
increasingly become more accurate with the advance of new techniques. But its
value seems to depend on the epoch at which the measurements are made. The
Planck estimate of the Hubble constant from the observations of the cosmic
microwave background rad... | [
{
"created": "Mon, 22 Jul 2024 13:11:03 GMT",
"version": "v1"
}
] | 2024-07-30 | [
[
"Rebecca",
"Louise",
""
],
[
"Sivaram",
"C",
""
],
[
"Sebastian",
"Dominic",
""
],
[
"Arun",
"Kenath",
""
]
] | The estimation of the Hubble constant in the past few decades has increasingly become more accurate with the advance of new techniques. But its value seems to depend on the epoch at which the measurements are made. The Planck estimate of the Hubble constant from the observations of the cosmic microwave background radia... |
2101.09615 | Jeremy Peters | Jeremy M. Peters, Alan Coley, Erik Schnetter | Curvature Invariants and the Geometric Horizon Conjecture in a Binary
Black Hole Merger | 16 pages, 4 figures; v2. included three right-hand panels to Figure 2
and updated corresponding explanations. Updated introduction and discussion
for clarity. Included mention of future work in discussion/conclusion. Made
various minor corrections. To appear in General Relativity and Gravitation | null | null | null | gr-qc | http://creativecommons.org/licenses/by-sa/4.0/ | We study curvature invariants in a binary black hole merger. It has been
conjectured that one could define a quasi-local and foliation independent black
hole horizon by finding the level--$0$ set of a suitable curvature invariant of
the Riemann tensor. The conjecture is the geometric horizon conjecture and the
associ... | [
{
"created": "Sun, 24 Jan 2021 00:47:01 GMT",
"version": "v1"
},
{
"created": "Tue, 14 Jun 2022 18:28:53 GMT",
"version": "v2"
}
] | 2022-06-16 | [
[
"Peters",
"Jeremy M.",
""
],
[
"Coley",
"Alan",
""
],
[
"Schnetter",
"Erik",
""
]
] | We study curvature invariants in a binary black hole merger. It has been conjectured that one could define a quasi-local and foliation independent black hole horizon by finding the level--$0$ set of a suitable curvature invariant of the Riemann tensor. The conjecture is the geometric horizon conjecture and the associat... |
gr-qc/0601076 | Soumya Mohanty | Soumya D. Mohanty, Malik Rakhmanov, Sergei Klimenko, Guenakh
Mitselmakher | Variability of signal to noise ratio and the network analysis of
gravitational wave burst signals | 13 pages, 6 figures | Class.Quant.Grav.23:4799-4810,2006 | 10.1088/0264-9381/23/15/001 | null | gr-qc | null | The detection and estimation of gravitational wave burst signals, with {\em a
priori} unknown polarization waveforms, requires the use of data from a network
of detectors. For determining how the data from such a network should be
combined, approaches based on the maximum likelihood principle have proven to
be useful... | [
{
"created": "Wed, 18 Jan 2006 20:17:31 GMT",
"version": "v1"
}
] | 2009-11-11 | [
[
"Mohanty",
"Soumya D.",
""
],
[
"Rakhmanov",
"Malik",
""
],
[
"Klimenko",
"Sergei",
""
],
[
"Mitselmakher",
"Guenakh",
""
]
] | The detection and estimation of gravitational wave burst signals, with {\em a priori} unknown polarization waveforms, requires the use of data from a network of detectors. For determining how the data from such a network should be combined, approaches based on the maximum likelihood principle have proven to be useful. ... |
0705.1058 | Farook Rahaman | F.Rahaman, M.Kalam, B.C.Bhui and S.Chakraborty | Construction of 3D wormhole supported by phantom energy | 9 papge, 4 figures. Accepted for publication in Physica Scripta | Phys.Scripta76:56-59,2007 | 10.1088/0031-8949/76/1/010 | null | gr-qc | null | In this article, we have found a series solution of 3D Einstein equations
describing a wormhole for an inhomogeneous distribution of phantom energy.
Here, we assume equation of state is linear but highly anistropic.
| [
{
"created": "Tue, 8 May 2007 10:15:56 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Rahaman",
"F.",
""
],
[
"Kalam",
"M.",
""
],
[
"Bhui",
"B. C.",
""
],
[
"Chakraborty",
"S.",
""
]
] | In this article, we have found a series solution of 3D Einstein equations describing a wormhole for an inhomogeneous distribution of phantom energy. Here, we assume equation of state is linear but highly anistropic. |
1505.03719 | Pierre-Andr\'e Mandrin Ph.D. | Pierre A. Mandrin | A non-dynamical approach for quantum gravity | 7 pages, 6 figures. v2: Case of non-orientable boundary space
included, slightly better explanation of the construction of the (d+1)-space,
typos. v3: More details on the assumptions (abstract, introduction) | null | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | By quantising the gravitational dynamics, space and time are usually forced
to play fundamentally different roles. This raises the question whether
physically relevent configurations could also exist which would not admit
space-time-splitting. This has led to the investigation of an approach not
based on quantum dyna... | [
{
"created": "Thu, 14 May 2015 17:28:38 GMT",
"version": "v1"
},
{
"created": "Mon, 6 Jul 2015 17:01:06 GMT",
"version": "v2"
},
{
"created": "Wed, 15 Jul 2015 14:26:30 GMT",
"version": "v3"
}
] | 2015-07-16 | [
[
"Mandrin",
"Pierre A.",
""
]
] | By quantising the gravitational dynamics, space and time are usually forced to play fundamentally different roles. This raises the question whether physically relevent configurations could also exist which would not admit space-time-splitting. This has led to the investigation of an approach not based on quantum dynami... |
gr-qc/9908054 | Manasse R. Mbonye | Manasse Mbonye | Horizon Dynamics of Evaporating Black Holes in a Higher Dimensional
Inflationary Universe | RevTex,19 pages, no figures; accepted for publication in Phys. Rev. D | Phys.Rev.D60:124007,1999 | 10.1103/PhysRevD.60.124007 | null | gr-qc | null | Spherically symmetric Black Holes of the Vaidya type are examined in an
asymptotically de Sitter, higher dimensional spacetime. The various horizons
are located. The structure and dynamics of such horizons are studied.
| [
{
"created": "Thu, 19 Aug 1999 20:28:49 GMT",
"version": "v1"
}
] | 2010-11-19 | [
[
"Mbonye",
"Manasse",
""
]
] | Spherically symmetric Black Holes of the Vaidya type are examined in an asymptotically de Sitter, higher dimensional spacetime. The various horizons are located. The structure and dynamics of such horizons are studied. |
gr-qc/0602030 | Sunil Maharaj | M. Chaisi and S. D. Maharaj | Anisotropic static solutions in modelling highly compact bodies | 9 pages, to appear in Pramana - J. Phys | Pramana66:609-614,2006 | 10.1007/BF02704504 | null | gr-qc | null | Einstein field equations for anisotropic spheres are solved and exact
interior solutions obtained. This paper extends earlier treatments to include
anisotropic models which accommodate a wider variety of physically viable
energy densities. Two classes of solutions are possible. The first class
contains the limiting c... | [
{
"created": "Wed, 8 Feb 2006 13:31:27 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Chaisi",
"M.",
""
],
[
"Maharaj",
"S. D.",
""
]
] | Einstein field equations for anisotropic spheres are solved and exact interior solutions obtained. This paper extends earlier treatments to include anisotropic models which accommodate a wider variety of physically viable energy densities. Two classes of solutions are possible. The first class contains the limiting cas... |
2110.13756 | Francesco Sartini | Francesco Sartini | Group quantization of the black hole minisuperspace | 22 pages + 4 pages of appendix, 2 figures | Phys.Rev.D 105 (2022) 12, 126003 | 10.1103/PhysRevD.105.126003 | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | The emergence of nontrivial symmetries for black holes minisuperspaces has
been recently pointed out. These Noether symmetries possess non-null charges
and hence map physical solutions to different ones. The symmetry group is
isomorphic to the finite-dimensional Poincar\'e group ISO(2,1), whose
irreducible representa... | [
{
"created": "Tue, 26 Oct 2021 15:06:40 GMT",
"version": "v1"
},
{
"created": "Tue, 15 Feb 2022 08:08:35 GMT",
"version": "v2"
},
{
"created": "Fri, 9 Sep 2022 15:22:55 GMT",
"version": "v3"
}
] | 2022-09-12 | [
[
"Sartini",
"Francesco",
""
]
] | The emergence of nontrivial symmetries for black holes minisuperspaces has been recently pointed out. These Noether symmetries possess non-null charges and hence map physical solutions to different ones. The symmetry group is isomorphic to the finite-dimensional Poincar\'e group ISO(2,1), whose irreducible representati... |
0911.2393 | Remo Garattini | Remo Garattini | Running Cosmological Constant and Running Newton Constant in Modified
Gravity Theories | Proceedings of the Conference "The Invisible Universe" Paris, June
29-July 3, 2009 10 pages | AIP Conf.Proc.1241:866-875,2010 | 10.1063/1.3462727 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We discuss how to extract information about the cosmological constant from
the Wheeler-DeWitt equation, considered as an eigenvalue of a Sturm-Liouville
problem in a de Sitter and Anti-de Sitter background. The equation is
approximated to one loop with the help of a variational approach with Gaussian
trial wave funct... | [
{
"created": "Thu, 12 Nov 2009 13:56:08 GMT",
"version": "v1"
}
] | 2014-11-20 | [
[
"Garattini",
"Remo",
""
]
] | We discuss how to extract information about the cosmological constant from the Wheeler-DeWitt equation, considered as an eigenvalue of a Sturm-Liouville problem in a de Sitter and Anti-de Sitter background. The equation is approximated to one loop with the help of a variational approach with Gaussian trial wave functio... |
2106.04084 | Cosimo Bambi | Cosimo Bambi | Testing General Relativity with black hole X-ray data: a progress report | 8 pages, 3 figures. Talk given at the "International Workshop on
Relativistic Astrophysics and Gravitation" (IWRAG-2021); Ulugh Beg
Astronomical Institute, Uzbekistan, 12-14 May 2021 | Arab. J. Math. 11, 81-90 (2022) | 10.1007/s40065-021-00336-y | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Einstein's theory of General Relativity is one of the pillars of modern
physics. For decades, the theory has been mainly tested in the weak field
regime with experiments in the Solar System and observations of binary pulsars.
Thanks to a new generation of observational facilities, the past 5 years have
seen remarkabl... | [
{
"created": "Tue, 8 Jun 2021 03:46:48 GMT",
"version": "v1"
}
] | 2022-06-06 | [
[
"Bambi",
"Cosimo",
""
]
] | Einstein's theory of General Relativity is one of the pillars of modern physics. For decades, the theory has been mainly tested in the weak field regime with experiments in the Solar System and observations of binary pulsars. Thanks to a new generation of observational facilities, the past 5 years have seen remarkable ... |
2006.05948 | G. Andr\'e Oliva | G. Andr\'e Oliva and Francisco Frutos-Alfaro | Effects of the treatment of the mass quadrupole moment on ray-tracing
applications for rapidly-rotating neutron stars | Accepted for publication in Monthly Notices of the Royal Astronomical
Society | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The Neutron Star Interior Composition Explorer (NICER) mission has provided a
unique opportunity to constrain the equation of state of neutron stars by using
the technique of pulse-profile modelling. This technique requires accurate and
efficient ray tracing, that in turn requires a robust representation of the
space... | [
{
"created": "Wed, 10 Jun 2020 16:54:13 GMT",
"version": "v1"
},
{
"created": "Fri, 12 Jun 2020 09:00:35 GMT",
"version": "v2"
},
{
"created": "Fri, 14 Aug 2020 18:32:06 GMT",
"version": "v3"
},
{
"created": "Tue, 11 May 2021 07:51:31 GMT",
"version": "v4"
}
] | 2021-05-12 | [
[
"Oliva",
"G. André",
""
],
[
"Frutos-Alfaro",
"Francisco",
""
]
] | The Neutron Star Interior Composition Explorer (NICER) mission has provided a unique opportunity to constrain the equation of state of neutron stars by using the technique of pulse-profile modelling. This technique requires accurate and efficient ray tracing, that in turn requires a robust representation of the spaceti... |
1503.02566 | Thomas Buchert | Alexandre Alles, Thomas Buchert, Fosca Al Roumi, and Alexander Wiegand | Lagrangian theory of structure formation in relativistic cosmology III:
gravitoelectric perturbation and solution schemes at any order | 17 pages, a few minor extensions to match the published version in
PRD | Phys. Rev. D 92, 023512 (2015) | 10.1103/PhysRevD.92.023512 | null | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The relativistic generalization of the Newtonian Lagrangian perturbation
theory is investigated. In previous works, the first-order trace solutions that
are generated by the spatially projected gravitoelectric part of the Weyl
tensor were given together with extensions and applications for accessing the
nonperturbati... | [
{
"created": "Mon, 9 Mar 2015 17:25:58 GMT",
"version": "v1"
},
{
"created": "Fri, 10 Jul 2015 12:59:43 GMT",
"version": "v2"
}
] | 2015-07-15 | [
[
"Alles",
"Alexandre",
""
],
[
"Buchert",
"Thomas",
""
],
[
"Roumi",
"Fosca Al",
""
],
[
"Wiegand",
"Alexander",
""
]
] | The relativistic generalization of the Newtonian Lagrangian perturbation theory is investigated. In previous works, the first-order trace solutions that are generated by the spatially projected gravitoelectric part of the Weyl tensor were given together with extensions and applications for accessing the nonperturbative... |
1105.1678 | Valeria Ferrari | Valeria Ferrari | Gravitational waves from perturbed stars | 22 pages, 5 figures, to appear in the Chandra Centennial issue of the
Bulletin of the Astronomical Society of India, Vol. 39, (2011) | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Non radial oscillations of neutron stars are associated with the emission of
gravitational waves. The characteristic frequencies of these oscillations can
be computed using the theory of stellar perturbations, and they are shown to
carry detailed information on the internal structure of the emitting source.
Moreover,... | [
{
"created": "Mon, 9 May 2011 14:19:38 GMT",
"version": "v1"
}
] | 2011-05-10 | [
[
"Ferrari",
"Valeria",
""
]
] | Non radial oscillations of neutron stars are associated with the emission of gravitational waves. The characteristic frequencies of these oscillations can be computed using the theory of stellar perturbations, and they are shown to carry detailed information on the internal structure of the emitting source. Moreover, t... |
2107.00947 | Alejandro Garc\'ia-Quismondo | Alejandro Garc\'ia-Quismondo and Guillermo A. Mena Marug\'an | Exploring alternatives to the Hamiltonian calculation of the
Ashtekar-Olmedo-Singh black hole solution | 12 pages, accepted for publication in Frontiers of Astronomy and
Space Sciences | Front. Astron. Space Sci. 8, 701723 (2021) | 10.3389/fspas.2021.701723 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this article, we reexamine the derivation of the dynamical equations of
the Ashtekar-Olmedo-Singh black hole model in order to determine whether it is
possible to construct a Hamiltonian formalism where the parameters that
regulate the introduction of quantum geometry effects are treated as true
constants of motio... | [
{
"created": "Fri, 2 Jul 2021 10:15:04 GMT",
"version": "v1"
}
] | 2021-07-23 | [
[
"García-Quismondo",
"Alejandro",
""
],
[
"Marugán",
"Guillermo A. Mena",
""
]
] | In this article, we reexamine the derivation of the dynamical equations of the Ashtekar-Olmedo-Singh black hole model in order to determine whether it is possible to construct a Hamiltonian formalism where the parameters that regulate the introduction of quantum geometry effects are treated as true constants of motion.... |
2308.00804 | Sujay Kr. Biswas | Trishit Banerjee, Goutam Mandal, Atreyee Biswas, and Sujay Kr. Biswas | Effects of particle creation rate in two-fluid interacting cosmologies | 27 pages, 14 captioned figures. The title is changed and thoroughly
modified. The version is accepted for publication in the journal Monthly
Notices of the Royal Astronomical Society | null | 10.1093/mnras/stae1047 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this work, a two-fluid interacting model in a flat FLRW universe has been
studied considering particle creation mechanism with a particular form of
particle creation rate $\Gamma=\Gamma_0 H+\frac{\Gamma_1}{H}$ from different
aspects. Statistical analysis with a combined data set of SNe Ia (Supernovae
Type Ia) and ... | [
{
"created": "Wed, 2 Aug 2023 12:09:51 GMT",
"version": "v1"
},
{
"created": "Tue, 30 Apr 2024 13:51:32 GMT",
"version": "v2"
}
] | 2024-05-01 | [
[
"Banerjee",
"Trishit",
""
],
[
"Mandal",
"Goutam",
""
],
[
"Biswas",
"Atreyee",
""
],
[
"Biswas",
"Sujay Kr.",
""
]
] | In this work, a two-fluid interacting model in a flat FLRW universe has been studied considering particle creation mechanism with a particular form of particle creation rate $\Gamma=\Gamma_0 H+\frac{\Gamma_1}{H}$ from different aspects. Statistical analysis with a combined data set of SNe Ia (Supernovae Type Ia) and Hu... |
0811.1009 | Savely G. Karshenboim | Savely G. Karshenboim (Max-Planck-Institut fuer Quantenoptik,
Garching, and D. I. Mendeleev Institute for Metrology, St.Petersburg) | K0 meson physics in the gravitation field: a constraint on the
equivalence principle | null | null | null | null | gr-qc hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | K0-K0bar oscillations are extremely sensitive to the K0 and K0bar energy at
rest. Even assuming m_K0=m_K0bar, the energy is not granted to be the same if
gravitational effects on K0 and K0bar slightly differ. We consider various
gravitation fields present and, in particular, galactic fields, which provide a
negligibl... | [
{
"created": "Thu, 6 Nov 2008 18:19:20 GMT",
"version": "v1"
}
] | 2008-11-07 | [
[
"Karshenboim",
"Savely G.",
"",
"Max-Planck-Institut fuer Quantenoptik,\n Garching, and D. I. Mendeleev Institute for Metrology, St.Petersburg"
]
] | K0-K0bar oscillations are extremely sensitive to the K0 and K0bar energy at rest. Even assuming m_K0=m_K0bar, the energy is not granted to be the same if gravitational effects on K0 and K0bar slightly differ. We consider various gravitation fields present and, in particular, galactic fields, which provide a negligible ... |
2208.06246 | Rabia Saleem | Xiao-Xiong Zeng, M. Israr Aslam and Rabia Saleem | The Optical Appearance of Charged Four-Dimensional Gauss-Bonnet Black
Hole with Strings Cloud and Non-Commutative Geometry Surrounded by Various
Accretions Profiles | 16 pages, 9 figures | null | 10.1140/epjc/s10052-023-11274-8 | null | gr-qc | http://creativecommons.org/publicdomain/zero/1.0/ | Thanks for the releasing image of supermassive black holes (BHs) by the event
horizon telescope (EHT) at the heart of the $M87$ galaxy. After the discovery
of this mysterious object, scientists paid attention to exploring the BH shadow
features under different gravitational backgrounds. In this scenario, we study
the... | [
{
"created": "Thu, 11 Aug 2022 11:01:26 GMT",
"version": "v1"
}
] | 2023-03-01 | [
[
"Zeng",
"Xiao-Xiong",
""
],
[
"Aslam",
"M. Israr",
""
],
[
"Saleem",
"Rabia",
""
]
] | Thanks for the releasing image of supermassive black holes (BHs) by the event horizon telescope (EHT) at the heart of the $M87$ galaxy. After the discovery of this mysterious object, scientists paid attention to exploring the BH shadow features under different gravitational backgrounds. In this scenario, we study the l... |
1610.06797 | Mercedes Martin-Benito | Jer\'onimo Cortez, Beatriz Elizaga Navascu\'es, Mercedes
Mart\'in-Benito, Guillermo A. Mena Marug\'an, Javier Olmedo, Jos\'e M.
Velhinho | Uniqueness of the Fock quantization of scalar fields in a Bianchi I
cosmology with unitary dynamics | 23 pages. Updated to match published version | Phys. Rev. D 94, 105019 (2016) | 10.1103/PhysRevD.94.105019 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The Fock quantization of free scalar fields is subject to an infinite
ambiguity when it comes to choosing a set of annihilation and creation
operators, choice that is equivalent to the determination of a vacuum state. In
highly symmetric situations, this ambiguity can be removed by asking vacuum
invariance under the ... | [
{
"created": "Fri, 21 Oct 2016 14:15:34 GMT",
"version": "v1"
},
{
"created": "Fri, 25 Nov 2016 11:36:10 GMT",
"version": "v2"
}
] | 2016-12-21 | [
[
"Cortez",
"Jerónimo",
""
],
[
"Navascués",
"Beatriz Elizaga",
""
],
[
"Martín-Benito",
"Mercedes",
""
],
[
"Marugán",
"Guillermo A. Mena",
""
],
[
"Olmedo",
"Javier",
""
],
[
"Velhinho",
"José M.",
""
]
] | The Fock quantization of free scalar fields is subject to an infinite ambiguity when it comes to choosing a set of annihilation and creation operators, choice that is equivalent to the determination of a vacuum state. In highly symmetric situations, this ambiguity can be removed by asking vacuum invariance under the sy... |
1108.3057 | Julian Barbour | Julian Barbour | Mach's Principle: A Response to Mashhoon and Wesson's Paper arXiv:
1106.6036 | 8 pages, 2 figures, to be submitted to Annalen der Physik and
followed by a response by Mashhoon and Wesson | null | 10.1002/andp.201100235 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In their recent "Mach's principle and higher-dimensional dynamics", Mashhoon
and Wesson argue that Mach's principle is not properly incorporated into
general relativity and that in Einstein's theory "the origin of inertia remains
essentially the same as in Newtonian physics." While it is true that the motion
of a sin... | [
{
"created": "Mon, 15 Aug 2011 18:56:30 GMT",
"version": "v1"
}
] | 2015-05-30 | [
[
"Barbour",
"Julian",
""
]
] | In their recent "Mach's principle and higher-dimensional dynamics", Mashhoon and Wesson argue that Mach's principle is not properly incorporated into general relativity and that in Einstein's theory "the origin of inertia remains essentially the same as in Newtonian physics." While it is true that the motion of a singl... |
gr-qc/0608044 | Guihua Tian | Gui-hua Tian, Shi-kun Wang, Shuquan Zhong | The tortoise coordinates and the cauchy problem in the stable study of
the Schwarzschild black hole | null | null | null | null | gr-qc | null | Generally, the Schwarzschild black hole was proved stable through two
different methods: the mode-decomposition method and the integral method. In
the paper, we show the integral method can only apply to the initial data
vanishing at both the horizon and the spatial infinity. It can not treat the
initial data only va... | [
{
"created": "Wed, 9 Aug 2006 09:22:51 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Tian",
"Gui-hua",
""
],
[
"Wang",
"Shi-kun",
""
],
[
"Zhong",
"Shuquan",
""
]
] | Generally, the Schwarzschild black hole was proved stable through two different methods: the mode-decomposition method and the integral method. In the paper, we show the integral method can only apply to the initial data vanishing at both the horizon and the spatial infinity. It can not treat the initial data only vani... |
gr-qc/9210020 | Fay Dowker | Fay Dowker | SO(4) Invariant States in Quantum Cosmology | 15 pages | Class.Quant.Grav.10:1435-1446,1993 | 10.1088/0264-9381/10/8/006 | FERMILAB-Pub-92/294-A | gr-qc | null | The phenomenon of linearisation instability is identified in models of
quantum cosmology that are perturbations of mini-superspace models. In
particular, constraints that are second order in the perturbations must be
imposed on wave functions calculated in such models. It is shown explicitly
that in the case of a mod... | [
{
"created": "Fri, 30 Oct 1992 21:12:14 GMT",
"version": "v1"
},
{
"created": "Mon, 2 Nov 1992 23:12:00 GMT",
"version": "v2"
},
{
"created": "Tue, 3 Nov 1992 22:51:17 GMT",
"version": "v3"
}
] | 2010-04-06 | [
[
"Dowker",
"Fay",
""
]
] | The phenomenon of linearisation instability is identified in models of quantum cosmology that are perturbations of mini-superspace models. In particular, constraints that are second order in the perturbations must be imposed on wave functions calculated in such models. It is shown explicitly that in the case of a model... |
1504.04009 | Ahmad Sheykhi | A. Sheykhi, S. Hajkhalili | Dilaton black holes coupled to nonlinear electrodynamic field | 22 pages | Phys Rev D 89 (2014) 104019 | 10.1103/PhysRevD.89.104019 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The theory of nonlinear electrodynamics has got a lot of attentions in recent
years. It was shown that Born-Infeld nonlinear electrodynamics is not the only
modification of the linear Maxwell's field which keeps the electric field of a
charged point particle finite at the origin, and other type of nonlinear
Lagrangia... | [
{
"created": "Wed, 15 Apr 2015 17:52:48 GMT",
"version": "v1"
}
] | 2015-04-17 | [
[
"Sheykhi",
"A.",
""
],
[
"Hajkhalili",
"S.",
""
]
] | The theory of nonlinear electrodynamics has got a lot of attentions in recent years. It was shown that Born-Infeld nonlinear electrodynamics is not the only modification of the linear Maxwell's field which keeps the electric field of a charged point particle finite at the origin, and other type of nonlinear Lagrangian ... |
1610.02369 | Ronaldo S. S. Vieira | Ronaldo S. S. Vieira, Javier Ramos-Caro, Alberto Saa | Vertical stability of circular orbits in relativistic razor-thin disks | 13 pages, 4 figures; Accepted for publication in Physical Review D | Phys. Rev. D 94, 104016 (2016) | 10.1103/PhysRevD.94.104016 | null | gr-qc astro-ph.GA nlin.CD | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | During the last few decades, there has been a growing interest in exact
solutions of Einstein equations describing razor-thin disks. Despite the
progress in the area, the analytical study of geodesic motion crossing the disk
plane in these systems is not yet so developed. In the present work, we propose
a definite ve... | [
{
"created": "Fri, 7 Oct 2016 18:43:12 GMT",
"version": "v1"
},
{
"created": "Wed, 2 Nov 2016 16:57:53 GMT",
"version": "v2"
}
] | 2016-11-09 | [
[
"Vieira",
"Ronaldo S. S.",
""
],
[
"Ramos-Caro",
"Javier",
""
],
[
"Saa",
"Alberto",
""
]
] | During the last few decades, there has been a growing interest in exact solutions of Einstein equations describing razor-thin disks. Despite the progress in the area, the analytical study of geodesic motion crossing the disk plane in these systems is not yet so developed. In the present work, we propose a definite vert... |
2105.06488 | Cristian Martinez | Mat\'ias Brice\~no, Cristi\'an Mart\'inez and Jorge Zanelli | Overspinning naked singularities in AdS$_3$ spacetime | 28 pages, 8 figures, 4 tables | Phys. Rev. D 104, 044023 (2021) | 10.1103/PhysRevD.104.044023 | null | gr-qc hep-th | http://creativecommons.org/licenses/by/4.0/ | The BTZ black hole belongs to a family of locally three-dimensional anti-de
Sitter (AdS$_3$) spacetimes labeled by their mass $M$ and angular momentum $J$.
The case $M \ell \geq |J|$, where $\ell$ is the anti-de Sitter radius, provides
the black hole. Extending the metric to other values of of $M$ and $J$ leads to
ge... | [
{
"created": "Thu, 13 May 2021 18:00:38 GMT",
"version": "v1"
}
] | 2021-08-18 | [
[
"Briceño",
"Matías",
""
],
[
"Martínez",
"Cristián",
""
],
[
"Zanelli",
"Jorge",
""
]
] | The BTZ black hole belongs to a family of locally three-dimensional anti-de Sitter (AdS$_3$) spacetimes labeled by their mass $M$ and angular momentum $J$. The case $M \ell \geq |J|$, where $\ell$ is the anti-de Sitter radius, provides the black hole. Extending the metric to other values of of $M$ and $J$ leads to geom... |
2103.17165 | Vittorio De Falco Dr | Vittorio De Falco, Maciek Wielgus | Three-dimensional general relativistic Poynting-Robertson effect. IV.
Slowly rotating and non-spherical quadrupolar massive source | 11 pages, 4 figures; accepted on Phys. Rev. D (31/03/2021) | null | 10.1103/PhysRevD.103.084056 | null | gr-qc astro-ph.HE hep-th | http://creativecommons.org/licenses/by/4.0/ | We consider a further extension of our previous works in the treatment of the
three-dimensional general relativistic Poynting-Robertson effect, which
describes the motion of a test particle around a compact object as affected by
the radiation field originating from a rigidly rotating and spherical emitting
source, wh... | [
{
"created": "Wed, 31 Mar 2021 15:38:27 GMT",
"version": "v1"
}
] | 2021-05-12 | [
[
"De Falco",
"Vittorio",
""
],
[
"Wielgus",
"Maciek",
""
]
] | We consider a further extension of our previous works in the treatment of the three-dimensional general relativistic Poynting-Robertson effect, which describes the motion of a test particle around a compact object as affected by the radiation field originating from a rigidly rotating and spherical emitting source, whic... |
0805.4192 | Geoffrey Lovelace | Geoffrey Lovelace, Robert Owen, Harald P. Pfeiffer, Tony Chu | Binary-black-hole initial data with nearly-extremal spins | null | Phys.Rev.D78:084017,2008 | 10.1103/PhysRevD.78.084017 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | There is a significant possibility that astrophysical black holes with
nearly-extremal spins exist. Numerical simulations of such systems require
suitable initial data. In this paper, we examine three methods of constructing
binary-black-hole initial data, focusing on their ability to generate black
holes with nearly... | [
{
"created": "Tue, 27 May 2008 19:31:20 GMT",
"version": "v1"
},
{
"created": "Wed, 28 May 2008 00:45:39 GMT",
"version": "v2"
},
{
"created": "Thu, 16 Oct 2008 16:05:56 GMT",
"version": "v3"
}
] | 2009-02-23 | [
[
"Lovelace",
"Geoffrey",
""
],
[
"Owen",
"Robert",
""
],
[
"Pfeiffer",
"Harald P.",
""
],
[
"Chu",
"Tony",
""
]
] | There is a significant possibility that astrophysical black holes with nearly-extremal spins exist. Numerical simulations of such systems require suitable initial data. In this paper, we examine three methods of constructing binary-black-hole initial data, focusing on their ability to generate black holes with nearly-e... |
1704.07175 | Hiroyuki Nakano | Hiroyuki Nakano, Norichika Sago, Hideyuki Tagoshi, Takahiro Tanaka | Black hole ringdown echoes and howls | 10 pages, 5 figures, matches the published version | null | 10.1093/ptep/ptx093 | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Recently the possibility of detecting echoes of ringdown gravitational waves
from binary black hole mergers was shown. The presence of echoes is expected if
the black hole is surrounded by a mirror that reflects gravitational waves near
the horizon. Here, we present slightly more sophisticated templates motivated
by ... | [
{
"created": "Mon, 24 Apr 2017 12:30:58 GMT",
"version": "v1"
},
{
"created": "Mon, 1 May 2017 09:04:41 GMT",
"version": "v2"
},
{
"created": "Mon, 24 Jul 2017 06:19:11 GMT",
"version": "v3"
}
] | 2017-07-25 | [
[
"Nakano",
"Hiroyuki",
""
],
[
"Sago",
"Norichika",
""
],
[
"Tagoshi",
"Hideyuki",
""
],
[
"Tanaka",
"Takahiro",
""
]
] | Recently the possibility of detecting echoes of ringdown gravitational waves from binary black hole mergers was shown. The presence of echoes is expected if the black hole is surrounded by a mirror that reflects gravitational waves near the horizon. Here, we present slightly more sophisticated templates motivated by a ... |
2311.15850 | Zakaria Belkhadria | Zakaria Belkhadria and Alexandre M. Pombo | Mixed scalarization of charged black holes: from spontaneous to
non-linear scalarization | 15 pages, 5 figures | Phys. Rev. D 110, 044014 (2024) | 10.1103/PhysRevD.110.044014 | null | gr-qc astro-ph.CO hep-ph hep-th | http://creativecommons.org/licenses/by/4.0/ | Scalarized black holes (BH) have been shown to form dynamically in
extended-scalar-tensor theories, either through spontaneous scalarization --
when the BH is unstable against linear perturbations -- or through a non-linear
scalarization. In the latter, linearly stable BHs can ignite scalarization when
sufficiently p... | [
{
"created": "Mon, 27 Nov 2023 14:17:39 GMT",
"version": "v1"
},
{
"created": "Sun, 19 May 2024 23:48:40 GMT",
"version": "v2"
}
] | 2024-08-06 | [
[
"Belkhadria",
"Zakaria",
""
],
[
"Pombo",
"Alexandre M.",
""
]
] | Scalarized black holes (BH) have been shown to form dynamically in extended-scalar-tensor theories, either through spontaneous scalarization -- when the BH is unstable against linear perturbations -- or through a non-linear scalarization. In the latter, linearly stable BHs can ignite scalarization when sufficiently per... |
2003.13104 | Rahul Kumar | Arun Kumar, Rahul Kumar Walia and Sushant G. Ghosh | Bardeen Black Holes in the Regularized $4D$ Einstein--Gauss--Bonnet
Gravity | 15 pages and 4 figures. This was an invited manuscript published in
the special issue "Dark Matter and Dark Energy: Particle Physics, Cosmology,
and Experimental Searches" | Universe 8 (2022) 4, 232 | 10.3390/universe8040232 | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | We obtain exact Bardeen black holes to the regularized $4D$
Einstein--Gauss--Bonnet (EGB) gravity minimally coupled with the nonlinear
electrodynamics (NED). In turn, we analyze the horizon structure to determine
the effect of GB parameter $\alpha$ on the minimum cutoff values of mass,
$M_0$, and magnetic monopole ch... | [
{
"created": "Sun, 29 Mar 2020 18:44:25 GMT",
"version": "v1"
},
{
"created": "Tue, 31 Mar 2020 13:50:08 GMT",
"version": "v2"
},
{
"created": "Mon, 18 Apr 2022 11:56:55 GMT",
"version": "v3"
}
] | 2022-04-19 | [
[
"Kumar",
"Arun",
""
],
[
"Walia",
"Rahul Kumar",
""
],
[
"Ghosh",
"Sushant G.",
""
]
] | We obtain exact Bardeen black holes to the regularized $4D$ Einstein--Gauss--Bonnet (EGB) gravity minimally coupled with the nonlinear electrodynamics (NED). In turn, we analyze the horizon structure to determine the effect of GB parameter $\alpha$ on the minimum cutoff values of mass, $M_0$, and magnetic monopole char... |
1502.06755 | Saskia Grunau | Saskia Grunau, Hendrik Neumann | Thermodynamics of a rotating black hole in minimal five-dimensional
gauged supergravity | 12 pages, 7 figures | null | 10.1088/0264-9381/32/17/175004 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this article we study the thermodynamics of a general non-extremal
rotating black hole in minimal five-dimensional gauged supergravity. We analyse
the entropy-temperature diagram and the free energy. Additionally we consider
the thermodynamic stability by calculating the specific heat, the isothermal
moment of ine... | [
{
"created": "Tue, 24 Feb 2015 10:41:44 GMT",
"version": "v1"
}
] | 2015-08-26 | [
[
"Grunau",
"Saskia",
""
],
[
"Neumann",
"Hendrik",
""
]
] | In this article we study the thermodynamics of a general non-extremal rotating black hole in minimal five-dimensional gauged supergravity. We analyse the entropy-temperature diagram and the free energy. Additionally we consider the thermodynamic stability by calculating the specific heat, the isothermal moment of inert... |
2111.00253 | Fabiano Feleppa | Fabiano Feleppa, Hooman Moradpour, Christian Corda, Sarah Aghababaei | Constraining the generalized uncertainty principle with neutron
interferometry | 6 pages + references | EPL (Europhysics Letters) 135(4), 40003 (2021) | 10.1209/0295-5075/ac1240 | null | gr-qc hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The non-zero minimal length arises in various theories of gravity, leading to
the so-called generalized uncertainty principle (GUP). In this short paper we
analyze the GUP effects on neutron interferometry, showing that the obtained
phase shifts depend on the mass and velocity of the particle. New upper bounds
on the... | [
{
"created": "Sat, 30 Oct 2021 14:05:39 GMT",
"version": "v1"
}
] | 2021-11-02 | [
[
"Feleppa",
"Fabiano",
""
],
[
"Moradpour",
"Hooman",
""
],
[
"Corda",
"Christian",
""
],
[
"Aghababaei",
"Sarah",
""
]
] | The non-zero minimal length arises in various theories of gravity, leading to the so-called generalized uncertainty principle (GUP). In this short paper we analyze the GUP effects on neutron interferometry, showing that the obtained phase shifts depend on the mass and velocity of the particle. New upper bounds on the d... |
2010.15715 | Edward Malec | Wojciech Kulczycki and Edward Malec | On extensions of the Penrose inequality with angular momentum | Revised and expanded: a new Section 3 on numerical integration;
misprints corrected; minor stylistic changes. Conclusions are unchanged | Phys. Rev. D 103, 064025 (2021) | 10.1103/PhysRevD.103.064025 | null | gr-qc math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We numerically investigate the validity of recent modifications of the
Penrose inequality that include angular momentum. Formulations expressed in
terms of asymptotic mass and asymptotic angular momentum are contradicted. We
analyzed numerical solutions describing polytropic stationary toroids around
spinning black h... | [
{
"created": "Thu, 29 Oct 2020 15:57:36 GMT",
"version": "v1"
},
{
"created": "Thu, 18 Feb 2021 12:38:22 GMT",
"version": "v2"
}
] | 2021-03-24 | [
[
"Kulczycki",
"Wojciech",
""
],
[
"Malec",
"Edward",
""
]
] | We numerically investigate the validity of recent modifications of the Penrose inequality that include angular momentum. Formulations expressed in terms of asymptotic mass and asymptotic angular momentum are contradicted. We analyzed numerical solutions describing polytropic stationary toroids around spinning black hol... |
1503.02441 | Jonas Pedro Pereira | Jonas P. Pereira and Jorge A. Rueda | Energy decomposition within Einstein-Born-Infeld black holes | 9 pages, 5 figures, accepted for publication in Phys. Rev. D | null | 10.1103/PhysRevD.91.064048 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We analyze the consequences of the recently found generalization of the
Christodoulou-Ruffini black hole mass decomposition for Einstein-Born-Infeld
black holes [characterized by the parameters $(Q,M,b)$, where $M =
M(M_{irr},Q,b)$, $b$ scale field, $Q$ charge, $M_{irr}$ "irreducible mass",
physically meaning the ene... | [
{
"created": "Mon, 9 Mar 2015 12:01:45 GMT",
"version": "v1"
}
] | 2015-06-24 | [
[
"Pereira",
"Jonas P.",
""
],
[
"Rueda",
"Jorge A.",
""
]
] | We analyze the consequences of the recently found generalization of the Christodoulou-Ruffini black hole mass decomposition for Einstein-Born-Infeld black holes [characterized by the parameters $(Q,M,b)$, where $M = M(M_{irr},Q,b)$, $b$ scale field, $Q$ charge, $M_{irr}$ "irreducible mass", physically meaning the energ... |
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