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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1806.04123 | Pedro Moraes | P.H.R.S. Moraes, J.D.V. Arba\~nil, G.A. Carvalho, R.V. Lobato, E.
Otoniel, R.M. Marinho Jr., M. Malheiro | Compact Astrophysical Objects in $f(R,T)$ gravity | Invited talk presented at the XIV International Workshop on Hadron
Physics, Florian\'opolis, Brazil, March 2018 | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this article we study the hydrostatic equilibrium configuration of neutron
stars (NSs) and strange stars (SSs), whose fluid pressure is computed from the
equations of state $p=\omega\rho^{5/3}$ and $p=0.28(\rho-4{\cal B})$,
respectively, with $\omega$ and ${\cal B}$ being constants and $\rho$ the
energy density of... | [
{
"created": "Mon, 11 Jun 2018 17:44:23 GMT",
"version": "v1"
},
{
"created": "Wed, 13 Jun 2018 10:59:21 GMT",
"version": "v2"
},
{
"created": "Fri, 15 Jun 2018 14:45:57 GMT",
"version": "v3"
},
{
"created": "Thu, 16 Aug 2018 12:24:54 GMT",
"version": "v4"
}
] | 2018-08-17 | [
[
"Moraes",
"P. H. R. S.",
""
],
[
"Arbañil",
"J. D. V.",
""
],
[
"Carvalho",
"G. A.",
""
],
[
"Lobato",
"R. V.",
""
],
[
"Otoniel",
"E.",
""
],
[
"Marinho",
"R. M.",
"Jr."
],
[
"Malheiro",
"M.",
""
]
] | In this article we study the hydrostatic equilibrium configuration of neutron stars (NSs) and strange stars (SSs), whose fluid pressure is computed from the equations of state $p=\omega\rho^{5/3}$ and $p=0.28(\rho-4{\cal B})$, respectively, with $\omega$ and ${\cal B}$ being constants and $\rho$ the energy density of t... |
2006.13047 | Ali \"Ovg\"un Dr. | Zonghai Li, Guodong Zhang and Ali \"Ovg\"un | Circular orbit of a particle and weak gravitational lensing | Accepted for publication in Physical Review D
(https://journals.aps.org/prd/accepted/22076Q27Da314d28369686b12569e1772f8bcf8da) | Phys. Rev. D 101, 124058 (2020) | 10.1103/PhysRevD.101.124058 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The purpose of this paper is twofold. First, we introduce a geometric
approach to study the circular orbit of a particle in static and spherically
symmetric spacetime based on Jacobi metric. Second, we apply the circular orbit
to study the weak gravitational deflection of null and time-like particles
based on Gauss-B... | [
{
"created": "Sun, 21 Jun 2020 19:53:52 GMT",
"version": "v1"
}
] | 2020-06-29 | [
[
"Li",
"Zonghai",
""
],
[
"Zhang",
"Guodong",
""
],
[
"Övgün",
"Ali",
""
]
] | The purpose of this paper is twofold. First, we introduce a geometric approach to study the circular orbit of a particle in static and spherically symmetric spacetime based on Jacobi metric. Second, we apply the circular orbit to study the weak gravitational deflection of null and time-like particles based on Gauss-Bon... |
2011.05697 | Katarina Martinovic | Katarina Martinovic, Patrick M. Meyers, Mairi Sakellariadou, Nelson
Christensen | Simultaneous estimation of astrophysical and cosmological stochastic
gravitational-wave backgrounds with terrestrial detectors | null | Phys. Rev. D 103, 043023 (2021) | 10.1103/PhysRevD.103.043023 | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | The recent Advanced LIGO and Advanced Virgo joint observing runs have not
claimed a stochastic gravitational-wave background detection, but one expects
this to change as the sensitivity of the detectors improves. The challenge of
claiming a true detection will be immediately succeeded by the difficulty of
relating th... | [
{
"created": "Wed, 11 Nov 2020 11:06:24 GMT",
"version": "v1"
}
] | 2021-03-03 | [
[
"Martinovic",
"Katarina",
""
],
[
"Meyers",
"Patrick M.",
""
],
[
"Sakellariadou",
"Mairi",
""
],
[
"Christensen",
"Nelson",
""
]
] | The recent Advanced LIGO and Advanced Virgo joint observing runs have not claimed a stochastic gravitational-wave background detection, but one expects this to change as the sensitivity of the detectors improves. The challenge of claiming a true detection will be immediately succeeded by the difficulty of relating the ... |
gr-qc/0305032 | Abdelmajid EL | H. Boutaleb-Joutei (Mohamed V Universite) and A. M. Elgasmi (Hassan II
Mohammedia universite) | Four Dimensional Spherical Space-Times and String Theory | 14 pages | null | null | null | gr-qc | null | Some shortcomings in regard to our lack of conceptual understanding of string
theory are displayed and prescription to untangle them is proposed. String
theory should be a fundamental dynamics of four dimensional symmetric
space-times. Properties of the two dimensional equivalent action are studied,
in the hydrodynam... | [
{
"created": "Thu, 8 May 2003 15:17:29 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Boutaleb-Joutei",
"H.",
"",
"Mohamed V Universite"
],
[
"Elgasmi",
"A. M.",
"",
"Hassan II\n Mohammedia universite"
]
] | Some shortcomings in regard to our lack of conceptual understanding of string theory are displayed and prescription to untangle them is proposed. String theory should be a fundamental dynamics of four dimensional symmetric space-times. Properties of the two dimensional equivalent action are studied, in the hydrodynamic... |
1506.03173 | Parthapratim Pradhan | Parthapratim Pradhan | Thermodynamic Product Formula for Ho\v{r}ava Lifshitz Black Hole | 7 pages Physics Letters B, 30 July 2015 | null | 10.1016/j.physletb.2015.05.054 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We examine the thermodynamic properties of inner and outer horizons in the
background of Ho\v{r}ava Lifshitz black hole. We compute the \emph{horizon
radii product, the surface area product, the entropy product, the surface
temperature product, the Komar energy product and the specific heat product}
for both the hori... | [
{
"created": "Wed, 10 Jun 2015 05:42:51 GMT",
"version": "v1"
}
] | 2015-06-11 | [
[
"Pradhan",
"Parthapratim",
""
]
] | We examine the thermodynamic properties of inner and outer horizons in the background of Ho\v{r}ava Lifshitz black hole. We compute the \emph{horizon radii product, the surface area product, the entropy product, the surface temperature product, the Komar energy product and the specific heat product} for both the horizo... |
1407.7796 | Ivan Arraut | Ivan Arraut | The Black Hole Radiation in Massive Gravity | Title changed in order to match the published version. Version
focused on the particle creation process of black-hole in massive gravity | Universe 2018, 4(2), 27 | 10.3390/universe4020027 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We apply the Bogoliubov transformations in order to connect two different
vacuums, one~located at past infinity and another located at future infinity
around a black hole inside the scenario of the nonlinear theory of massive
gravity. The presence of the extra degrees of freedom changes the behavior of
the logarithmi... | [
{
"created": "Sun, 27 Jul 2014 10:20:20 GMT",
"version": "v1"
},
{
"created": "Wed, 30 Jul 2014 10:35:54 GMT",
"version": "v2"
},
{
"created": "Wed, 7 Feb 2018 12:19:17 GMT",
"version": "v3"
}
] | 2018-02-08 | [
[
"Arraut",
"Ivan",
""
]
] | We apply the Bogoliubov transformations in order to connect two different vacuums, one~located at past infinity and another located at future infinity around a black hole inside the scenario of the nonlinear theory of massive gravity. The presence of the extra degrees of freedom changes the behavior of the logarithmic ... |
1005.2319 | Adam D. Helfer | Adam D. Helfer | Comment on "Insensitivity of Hawking Radiation to an invariant
Planck-scale cutoff" | 4 pages, to appear in Phys. Rev. D., see also the reply by Agullo et
al. | Phys.Rev.D81:108501,2010 | 10.1103/PhysRevD.81.108501 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | I point out that the cutoff introduced by Agullo et al.
[Phys.Rev.D80:047503,2009 arXiv:0906.5315] has little impact on the
trans-Planckian problem as it is usually understood; it excludes only a small
fraction of the problematic modes.
| [
{
"created": "Thu, 13 May 2010 13:33:05 GMT",
"version": "v1"
}
] | 2014-11-21 | [
[
"Helfer",
"Adam D.",
""
]
] | I point out that the cutoff introduced by Agullo et al. [Phys.Rev.D80:047503,2009 arXiv:0906.5315] has little impact on the trans-Planckian problem as it is usually understood; it excludes only a small fraction of the problematic modes. |
2210.05201 | Puxun Wu | Li-Yang Chen, Hongwei Yu and Puxun Wu | Primordial non-Guassianity in inflation with gravitationally enhanced
friction | 19 pages, 2 figures, three references added | Physical Review D 106, 063537 (2022) | 10.1103/PhysRevD.106.063537 | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | The gravitationally enhanced friction can reduce the speed of the inflaton to
realize an ultra-slow-roll inflation, which will amplify the curvature
perturbations. The amplified perturbations can generate a sizable amount of
primordial black holes (PBHs) and induce simultaneously a significant
background gravitationa... | [
{
"created": "Tue, 11 Oct 2022 07:14:25 GMT",
"version": "v1"
},
{
"created": "Wed, 26 Oct 2022 00:57:14 GMT",
"version": "v2"
}
] | 2022-10-27 | [
[
"Chen",
"Li-Yang",
""
],
[
"Yu",
"Hongwei",
""
],
[
"Wu",
"Puxun",
""
]
] | The gravitationally enhanced friction can reduce the speed of the inflaton to realize an ultra-slow-roll inflation, which will amplify the curvature perturbations. The amplified perturbations can generate a sizable amount of primordial black holes (PBHs) and induce simultaneously a significant background gravitational ... |
gr-qc/9810017 | Ezra T. Newman | Simonetta Frittelli, Ezra T. Newman | An Exact Universal Gravitational Lensing Equation | 12 pages, submitted to Phys. Rev. D | Phys.Rev.D59:124001,1999 | 10.1103/PhysRevD.59.124001 | null | gr-qc | null | We first define what we mean by gravitational lensing equations in a general
space-time. A set of exact relations are then derived that can be used as the
gravitational lens equations in all physical situations. The caveat is that
into these equations there must be inserted a function, a two-parameter family
of solut... | [
{
"created": "Mon, 5 Oct 1998 18:46:01 GMT",
"version": "v1"
}
] | 2008-12-18 | [
[
"Frittelli",
"Simonetta",
""
],
[
"Newman",
"Ezra T.",
""
]
] | We first define what we mean by gravitational lensing equations in a general space-time. A set of exact relations are then derived that can be used as the gravitational lens equations in all physical situations. The caveat is that into these equations there must be inserted a function, a two-parameter family of solutio... |
gr-qc/0010035 | Yoshiaki Himemoto | Yoshiaki Himemoto and Misao Sasaki | Brane-world inflation without inflaton on the brane | 10 pages, 2 figures, final version, to be published in Phys. Rev. D | Phys.Rev.D63:044015,2001 | 10.1103/PhysRevD.63.044015 | OU-TAP-144 | gr-qc astro-ph hep-th | null | Inspired by the Randall-Sundrum brane-world scenario, we investigate the
possibility of brane-world inflation driven not by an inflaton field on the
brane, but by a bulk, dilaton-like gravitational field. As a toy model for the
dilaton-like gravitational field, we consider a minimally coupled massive
scalar field in ... | [
{
"created": "Tue, 10 Oct 2000 08:40:44 GMT",
"version": "v1"
},
{
"created": "Fri, 20 Oct 2000 13:46:50 GMT",
"version": "v2"
},
{
"created": "Wed, 15 Nov 2000 06:17:20 GMT",
"version": "v3"
},
{
"created": "Fri, 26 Jan 2001 11:38:24 GMT",
"version": "v4"
}
] | 2009-10-09 | [
[
"Himemoto",
"Yoshiaki",
""
],
[
"Sasaki",
"Misao",
""
]
] | Inspired by the Randall-Sundrum brane-world scenario, we investigate the possibility of brane-world inflation driven not by an inflaton field on the brane, but by a bulk, dilaton-like gravitational field. As a toy model for the dilaton-like gravitational field, we consider a minimally coupled massive scalar field in th... |
gr-qc/0410137 | Homer G. Ellis | Homer G. Ellis | An expanding universe of spinning spheres | 8 pages, AMSTeX, 5 Encapsulated PostScript figures | null | null | null | gr-qc | null | A novel but elementary geometric construction produces on the
seven-dimensional manifold of rotated spheres in Euclidean three-space a
finslerian geometry whose geodesics are interpreted as the paths of free,
spinning, spherical particles moving through de Sitter's expanding universe. A
particle of nonzero inertial r... | [
{
"created": "Thu, 28 Oct 2004 06:51:12 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Ellis",
"Homer G.",
""
]
] | A novel but elementary geometric construction produces on the seven-dimensional manifold of rotated spheres in Euclidean three-space a finslerian geometry whose geodesics are interpreted as the paths of free, spinning, spherical particles moving through de Sitter's expanding universe. A particle of nonzero inertial res... |
1803.05301 | Emanuel Gallo | Emanuel Gallo and Osvaldo M. Moreschi | Constructing balanced equations of motion for particles in general
relativity: the null gauge case | 14 pages | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present a convenient null gauge for the construction of the balanced
equations of motion. This null gauge has the property that the asymptotic
structure is intimately related to the interior one; in particular there is a
strong connexion between the field equation and the balanced equations of
motion. We present t... | [
{
"created": "Wed, 14 Mar 2018 14:22:43 GMT",
"version": "v1"
}
] | 2018-03-15 | [
[
"Gallo",
"Emanuel",
""
],
[
"Moreschi",
"Osvaldo M.",
""
]
] | We present a convenient null gauge for the construction of the balanced equations of motion. This null gauge has the property that the asymptotic structure is intimately related to the interior one; in particular there is a strong connexion between the field equation and the balanced equations of motion. We present the... |
1309.0292 | Jorge P\'aramos | Orfeu Bertolami and Jorge P\'aramos | Minimal extension of General Relativity: alternative gravity model with
non-minimal coupling between matter and curvature | 24 pages, 4 figures; talk presented by one of us (O.B.) at the 9th
Winter School of Theoretical Physics - Cosmology and non-equilibrium
statistical mechanics, Ladek-Zdroj, Poland, February 10-16, 2013 | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We examine an extension of General Relativity with an explicit non-minimal
coupling between matter and curvature. The purpose of this work is to present
an overview of the implications of the latter to various contexts, ranging from
astrophysical matter distributions to a cosmological setting. Various results
are dis... | [
{
"created": "Mon, 2 Sep 2013 02:46:40 GMT",
"version": "v1"
},
{
"created": "Thu, 16 Jan 2014 22:42:39 GMT",
"version": "v2"
}
] | 2014-01-20 | [
[
"Bertolami",
"Orfeu",
""
],
[
"Páramos",
"Jorge",
""
]
] | We examine an extension of General Relativity with an explicit non-minimal coupling between matter and curvature. The purpose of this work is to present an overview of the implications of the latter to various contexts, ranging from astrophysical matter distributions to a cosmological setting. Various results are discu... |
1804.09624 | Shubham Maheshwari | Luca Buoninfante, Gerhard Harmsen, Shubham Maheshwari, Anupam Mazumdar | Non-singular metric for an electrically charged point-source in
ghost-free infinite derivative gravity | 11 pages, 3 figures. Version accepted for publication in PRD | Phys. Rev. D 98, 084009 (2018) | 10.1103/PhysRevD.98.084009 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper we will construct a linearized metric solution for an
electrically charged system in a {\it ghost-free} infinite derivative theory of
gravity which is valid in the entire region of spacetime. We will show that the
gravitational potential for a point-charge with mass $m$ is non-singular, the
Kretschmann ... | [
{
"created": "Wed, 25 Apr 2018 15:25:33 GMT",
"version": "v1"
},
{
"created": "Tue, 4 Dec 2018 17:04:08 GMT",
"version": "v2"
}
] | 2018-12-05 | [
[
"Buoninfante",
"Luca",
""
],
[
"Harmsen",
"Gerhard",
""
],
[
"Maheshwari",
"Shubham",
""
],
[
"Mazumdar",
"Anupam",
""
]
] | In this paper we will construct a linearized metric solution for an electrically charged system in a {\it ghost-free} infinite derivative theory of gravity which is valid in the entire region of spacetime. We will show that the gravitational potential for a point-charge with mass $m$ is non-singular, the Kretschmann sc... |
1312.3471 | Nikolaos Pappas | Nikolaos Pappas | A little quantum help for cosmic censorship and a step beyond all that | 6 pages, no figures, v2: 1 reference added, corrections regarding
reference details included | Adv.High Energy Phys. 2013 (2013) 236974 | 10.1155/2013/236974 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The hypothesis of cosmic censorship (CCH) plays a crucial role in classical
general relativity, namely to ensure that naked singularities would never
emerge, since it predicts that whenever a singularity is formed an event
horizon would always develop around it as well, to prevent the former from
interacting directly... | [
{
"created": "Thu, 12 Dec 2013 13:20:34 GMT",
"version": "v1"
},
{
"created": "Wed, 19 Feb 2014 19:05:48 GMT",
"version": "v2"
}
] | 2017-04-26 | [
[
"Pappas",
"Nikolaos",
""
]
] | The hypothesis of cosmic censorship (CCH) plays a crucial role in classical general relativity, namely to ensure that naked singularities would never emerge, since it predicts that whenever a singularity is formed an event horizon would always develop around it as well, to prevent the former from interacting directly w... |
1801.04219 | Ahmet Baykal | Ahmet Baykal and Tekin Dereli | Abbott-Deser energy in connection with Thirring's superpotentials | Published version, 6 pages, formatted using EPL class files | EPL 122 (2018) 50002 | 10.1209/0295-5075/122/50002 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We linearize vacuum Einstein field equations with a cosmological constant
around a curved background to elaborate on the reconstruction of the
Abbott-Deser charges and incorporate a spin connection into the definition
using the algebra of differential forms on a given curved background spacetime.
| [
{
"created": "Fri, 12 Jan 2018 16:22:30 GMT",
"version": "v1"
},
{
"created": "Wed, 11 Jul 2018 08:10:58 GMT",
"version": "v2"
}
] | 2018-07-12 | [
[
"Baykal",
"Ahmet",
""
],
[
"Dereli",
"Tekin",
""
]
] | We linearize vacuum Einstein field equations with a cosmological constant around a curved background to elaborate on the reconstruction of the Abbott-Deser charges and incorporate a spin connection into the definition using the algebra of differential forms on a given curved background spacetime. |
gr-qc/0601128 | Felix Finster | Felix Finster | The Principle of the Fermionic Projector: An Approach for Quantum
Gravity? | 18 pages, LaTeX, few typos corrected (published version) | "Quantum Gravity," B. Fauser et al. (eds.), Birkh\"auser (2006)
263-281 | null | null | gr-qc | null | In this short article we introduce the mathematical framework of the
principle of the fermionic projector and set up a variational principle in
discrete space-time. The underlying physical principles are discussed. We
outline the connection to the continuum theory and state recent results. In the
last two sections, w... | [
{
"created": "Sun, 29 Jan 2006 17:51:59 GMT",
"version": "v1"
},
{
"created": "Fri, 29 Dec 2006 22:11:56 GMT",
"version": "v2"
},
{
"created": "Sat, 27 Oct 2007 15:53:30 GMT",
"version": "v3"
}
] | 2012-02-15 | [
[
"Finster",
"Felix",
""
]
] | In this short article we introduce the mathematical framework of the principle of the fermionic projector and set up a variational principle in discrete space-time. The underlying physical principles are discussed. We outline the connection to the continuum theory and state recent results. In the last two sections, we ... |
1705.04935 | Oindrila Ganguly | Oindrila Ganguly | Acoustic superradiance in a slightly viscous fluid | 10 pages | null | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The acoustic analogue of the geometry of curved spacetime realised in a
classical fluid becomes Lorentz violating in the presence of viscosity. We
study how this effective Lorentz violation affects acoustic superradiance from
the ergosphere of a rotating sonic black hole formed in such a fluid. It turns
out that Lore... | [
{
"created": "Sun, 14 May 2017 09:03:22 GMT",
"version": "v1"
}
] | 2017-05-16 | [
[
"Ganguly",
"Oindrila",
""
]
] | The acoustic analogue of the geometry of curved spacetime realised in a classical fluid becomes Lorentz violating in the presence of viscosity. We study how this effective Lorentz violation affects acoustic superradiance from the ergosphere of a rotating sonic black hole formed in such a fluid. It turns out that Lorent... |
2205.07251 | Meir Shimon | Meir Shimon | Cosmology in a locally scale invariant gravity | 8 pages. Comments are welcome | null | null | null | gr-qc astro-ph.CO | http://creativecommons.org/licenses/by/4.0/ | A `bouncing' cosmological model is proposed in the context of a
Weyl-invariant scalar-tensor (WIST) theory of gravity. In addition to being
Weyl-invariant the theory is U(1)-symmetric and has a conserved global charge.
The entire cosmic background evolution is accounted for by a complex scalar
field that evolves in t... | [
{
"created": "Sun, 15 May 2022 10:30:06 GMT",
"version": "v1"
}
] | 2022-05-17 | [
[
"Shimon",
"Meir",
""
]
] | A `bouncing' cosmological model is proposed in the context of a Weyl-invariant scalar-tensor (WIST) theory of gravity. In addition to being Weyl-invariant the theory is U(1)-symmetric and has a conserved global charge. The entire cosmic background evolution is accounted for by a complex scalar field that evolves in the... |
0809.1373 | Lorenzo Iorio | Lorenzo Iorio | An Assessment of the Systematic Uncertainty in Present and Future Tests
of the Lense-Thirring Effect with Satellite Laser Ranging | LaTex, 19 pages, 1 figure, 12 tables. Invited and refereed
contribution to The ISSI Workshop, 6-10 October 2008, on The Nature of
Gravity Confronting Theory and Experiment in Space To appear in Space Science
Reviews | Space Sci.Rev.148: 363-381,2009 | 10.1007/s11214-008-9478-1 | null | gr-qc astro-ph physics.geo-ph physics.space-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We deal with the attempts to measure the Lense-Thirring effect with the
Satellite Laser Ranging (SLR) technique applied to the existing LAGEOS and
LAGEOS II terrestrial satellites and to the recently approved LARES
spacecraft.The first issue addressed here is: are the so far published
evaluations of the systematic un... | [
{
"created": "Mon, 8 Sep 2008 19:14:01 GMT",
"version": "v1"
},
{
"created": "Fri, 5 Dec 2008 17:36:24 GMT",
"version": "v2"
}
] | 2010-11-30 | [
[
"Iorio",
"Lorenzo",
""
]
] | We deal with the attempts to measure the Lense-Thirring effect with the Satellite Laser Ranging (SLR) technique applied to the existing LAGEOS and LAGEOS II terrestrial satellites and to the recently approved LARES spacecraft.The first issue addressed here is: are the so far published evaluations of the systematic unce... |
gr-qc/0309074 | Robert Geroch | Jurgen Ehlers, Robert Geroch | Equation of Motion of Small Bodies in Relativity | 7 pages | AnnalsPhys.309:232-236,2004 | 10.1016/j.aop.2003.08.020 | null | gr-qc | null | There is proven a theorem, to the effect that a material body in general
relativity, in a certain limit of sufficiently small size and mass, moves along
a geodesic.
| [
{
"created": "Tue, 16 Sep 2003 13:48:15 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Ehlers",
"Jurgen",
""
],
[
"Geroch",
"Robert",
""
]
] | There is proven a theorem, to the effect that a material body in general relativity, in a certain limit of sufficiently small size and mass, moves along a geodesic. |
2112.06691 | Nikolaos Mavromatos | Nick E. Mavromatos | Going beyond the Standard paradigm of Cosmology: Torsion, gravitational
anomalies and inflation without inflaton fields | 11 pages latex, uses PoS style, One figure incorporated. References
and one footnote [1] added, regarding conventional quantum field theoretic
derivations of running vacuum models in curved spacetime. Plenary talk at the
7th Symposium on Prospects in the Physics of Discrete Symmetries (DISCRETE
2020-2021) 29th ... | null | null | KCL-PH-TH/2021-97 | gr-qc hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | I review a string-inspired cosmological model, with gravitational anomalies
present at very early epochs, which includes a totally antisymmetric torsion,
that in (3+1)-dimensions is equivalent to a pseudoscalar (Kalb-Ramond,
string-model independent) axion field. Upon condensation of primordial
gravitational waves (G... | [
{
"created": "Mon, 13 Dec 2021 14:22:21 GMT",
"version": "v1"
},
{
"created": "Mon, 27 Dec 2021 19:47:57 GMT",
"version": "v2"
}
] | 2021-12-30 | [
[
"Mavromatos",
"Nick E.",
""
]
] | I review a string-inspired cosmological model, with gravitational anomalies present at very early epochs, which includes a totally antisymmetric torsion, that in (3+1)-dimensions is equivalent to a pseudoscalar (Kalb-Ramond, string-model independent) axion field. Upon condensation of primordial gravitational waves (GW)... |
gr-qc/9611061 | Henning Samtleben | D. Korotkin and H. Samtleben | Poisson Realization and Quantization of the Geroch Group | 8 pages, LaTeX2e | Class.Quant.Grav.14:L151-L156,1997 | 10.1088/0264-9381/14/8/003 | DESY 96-245 | gr-qc hep-th | null | The conserved nonlocal charges generating the Geroch group with respect to
the canonical Poisson structure of the Ernst equation are found. They are shown
to build a quadratic Poisson algebra, which suggests to identify the quantum
Geroch algebra with Yangian structures.
| [
{
"created": "Tue, 26 Nov 1996 09:42:40 GMT",
"version": "v1"
}
] | 2010-04-06 | [
[
"Korotkin",
"D.",
""
],
[
"Samtleben",
"H.",
""
]
] | The conserved nonlocal charges generating the Geroch group with respect to the canonical Poisson structure of the Ernst equation are found. They are shown to build a quadratic Poisson algebra, which suggests to identify the quantum Geroch algebra with Yangian structures. |
2206.11530 | Jinn-Ouk Gong | Inyong Cho, Jinn-Ouk Gong, Seung Hun Oh | Second-order energy-momentum tensor of a scalar field | 12 pages | null | null | APCTP-Pre2022-013 | gr-qc astro-ph.CO hep-th | http://creativecommons.org/licenses/by/4.0/ | We investigate the second-order effective energy-momentum tensor (2EMT)
constructed by the quadratic terms of the linear scalar cosmological
perturbations while the universe is dominated by a scalar field. We show that
2EMT is gauge dependent. We then study 2EMT in three (longitudinal, spatially
flat, and comoving) g... | [
{
"created": "Thu, 23 Jun 2022 08:27:02 GMT",
"version": "v1"
}
] | 2022-06-24 | [
[
"Cho",
"Inyong",
""
],
[
"Gong",
"Jinn-Ouk",
""
],
[
"Oh",
"Seung Hun",
""
]
] | We investigate the second-order effective energy-momentum tensor (2EMT) constructed by the quadratic terms of the linear scalar cosmological perturbations while the universe is dominated by a scalar field. We show that 2EMT is gauge dependent. We then study 2EMT in three (longitudinal, spatially flat, and comoving) gau... |
2103.15424 | Jose M. Isidro | J.M. Isidro, P. Fernandez de Cordoba, J.C. Castro-Palacio | Spherical space in the Newtonian limit: The cosmological constant | 16 pp; clarifications added | null | 10.1142/S0218271821500838 | null | gr-qc math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We compute the cosmological constant of a spherical space in the limit of
weak gravity. To this end we use a duality developed by the present authors in
a previous work. This duality allows one to treat the Newtonian cosmological
fluid as the probability fluid of a single particle in nonrelativistic quantum
mechanics... | [
{
"created": "Mon, 29 Mar 2021 08:47:30 GMT",
"version": "v1"
},
{
"created": "Tue, 15 Jun 2021 14:50:26 GMT",
"version": "v2"
}
] | 2021-09-22 | [
[
"Isidro",
"J. M.",
""
],
[
"de Cordoba",
"P. Fernandez",
""
],
[
"Castro-Palacio",
"J. C.",
""
]
] | We compute the cosmological constant of a spherical space in the limit of weak gravity. To this end we use a duality developed by the present authors in a previous work. This duality allows one to treat the Newtonian cosmological fluid as the probability fluid of a single particle in nonrelativistic quantum mechanics. ... |
2203.15934 | Simone Mezzasoma | S. Mezzasoma, N. Yunes | Theory-agnostic framework for inspiral tests of general relativity with
higher-harmonic gravitational waves | null | null | 10.1103/PhysRevD.106.024026 | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | Recent gravitational wave observations show evidence for the presence of
higher harmonics, thus possibly indicating that these waves were generated in
the inspiral of compact objects with asymmetric mass ratios. Signals with
higher harmonics contain a trove of information that can lead to a better
estimation of syste... | [
{
"created": "Tue, 29 Mar 2022 22:27:47 GMT",
"version": "v1"
}
] | 2022-07-27 | [
[
"Mezzasoma",
"S.",
""
],
[
"Yunes",
"N.",
""
]
] | Recent gravitational wave observations show evidence for the presence of higher harmonics, thus possibly indicating that these waves were generated in the inspiral of compact objects with asymmetric mass ratios. Signals with higher harmonics contain a trove of information that can lead to a better estimation of system ... |
2107.09601 | Alexander Vikman | Alexander Vikman | Global Dynamics for Newton and Planck | Contribution to the 2021 Gravitation session of the 55th Rencontres
de Moriond | null | null | null | gr-qc hep-th | http://creativecommons.org/licenses/by/4.0/ | We discuss recently introduced scale-free Einstein equations, where the
information from their trace part is lost. These equations are classically
equivalent to General Relativity, yet the Newton constant becomes a constant of
integration or a global dynamical degree of freedom. Thus, from the point of
view of standa... | [
{
"created": "Tue, 20 Jul 2021 16:24:31 GMT",
"version": "v1"
}
] | 2021-07-21 | [
[
"Vikman",
"Alexander",
""
]
] | We discuss recently introduced scale-free Einstein equations, where the information from their trace part is lost. These equations are classically equivalent to General Relativity, yet the Newton constant becomes a constant of integration or a global dynamical degree of freedom. Thus, from the point of view of standard... |
1703.10061 | Rathul Nath Raveendran | Rathul Nath Raveendran, Debika Chowdhury and L. Sriramkumar | Viable tensor-to-scalar ratio in a symmetric matter bounce | v1: 39 pages, 8 figures; v2: 40 pages, 8 figures, discussions and
references added, accepted for publication in JCAP | null | 10.1088/1475-7516/2018/01/030 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Matter bounces refer to scenarios wherein the universe contracts at early
times as in a matter dominated epoch until the scale factor reaches a minimum,
after which it starts expanding. While such scenarios are known to lead to
scale invariant spectra of primordial perturbations after the bounce, the
challenge has be... | [
{
"created": "Tue, 28 Mar 2017 17:28:26 GMT",
"version": "v1"
},
{
"created": "Sun, 31 Dec 2017 07:36:51 GMT",
"version": "v2"
}
] | 2018-01-31 | [
[
"Raveendran",
"Rathul Nath",
""
],
[
"Chowdhury",
"Debika",
""
],
[
"Sriramkumar",
"L.",
""
]
] | Matter bounces refer to scenarios wherein the universe contracts at early times as in a matter dominated epoch until the scale factor reaches a minimum, after which it starts expanding. While such scenarios are known to lead to scale invariant spectra of primordial perturbations after the bounce, the challenge has been... |
2305.06502 | Adrian Ka-Wai Chung | Adrian Ka-Wai Chung, Nicolas Yunes | Untargeted Bayesian search of anisotropic gravitational-wave backgrounds
through the analytical marginalization of the posterior | Match the published version | Phys. Rev. D 108, 043032 (2023) | 10.1103/PhysRevD.108.043032 | null | gr-qc astro-ph.IM | http://creativecommons.org/publicdomain/zero/1.0/ | We develop a method to perform an untargeted Bayesian search for anisotropic
gravitational-wave backgrounds that can efficiently and accurately reconstruct
the background intensity map. Our method employs an analytic marginalization of
the posterior of the spherical-harmonic components of the intensity map,
without a... | [
{
"created": "Thu, 11 May 2023 00:51:44 GMT",
"version": "v1"
},
{
"created": "Wed, 30 Aug 2023 05:32:12 GMT",
"version": "v2"
}
] | 2023-09-06 | [
[
"Chung",
"Adrian Ka-Wai",
""
],
[
"Yunes",
"Nicolas",
""
]
] | We develop a method to perform an untargeted Bayesian search for anisotropic gravitational-wave backgrounds that can efficiently and accurately reconstruct the background intensity map. Our method employs an analytic marginalization of the posterior of the spherical-harmonic components of the intensity map, without ass... |
1509.08338 | Ivan Arraut | Ivan Arraut | The graviton Higgs mechanism | 5 pages, Version published in Europhysics Letters (EPL) | Europhys. Lett. 111 (2015) 61001 | 10.1209/0295-5075/111/61001 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The Higgs mechanism at the graviton level formulated as a Vainshtein
mechanism in time domains implies that the extra-degrees of freedom become
relevant depending on the direction of time (frame of reference) with respect
to the preferred time direction (preferred frame) defined by the St\"uckelberg
function $T_0(r,t... | [
{
"created": "Fri, 25 Sep 2015 15:30:17 GMT",
"version": "v1"
}
] | 2015-10-28 | [
[
"Arraut",
"Ivan",
""
]
] | The Higgs mechanism at the graviton level formulated as a Vainshtein mechanism in time domains implies that the extra-degrees of freedom become relevant depending on the direction of time (frame of reference) with respect to the preferred time direction (preferred frame) defined by the St\"uckelberg function $T_0(r,t)$... |
2311.12259 | Anzhong Wang | Zibo Shen, Anzhong Wang, Yungui Gong, Shaoyu Yin | Analytical models of supermassive black holes in galaxies surrounded by
dark matter halos | revtex4-2, no figures. Version to appear in Phys. Lett. B 855 (2024)
138797 | Phys. Lett. B 855 (2024) 138797 | 10.1016/j.physletb.2024.138797 | null | gr-qc astro-ph.CO hep-ph hep-th | http://creativecommons.org/licenses/by/4.0/ | In this Letter, we present five analytical models in closed forms, each
representing a supermassive black hole (SMBH) located at the center of a galaxy
surrounded by dark matter (DM) halo. The density profile of the halo vanishes
inside twice the Schwarzschild radius of the hole and satisfies the weak,
strong, and do... | [
{
"created": "Tue, 21 Nov 2023 00:43:08 GMT",
"version": "v1"
},
{
"created": "Wed, 6 Dec 2023 08:37:00 GMT",
"version": "v2"
},
{
"created": "Tue, 12 Dec 2023 04:47:37 GMT",
"version": "v3"
},
{
"created": "Sun, 17 Dec 2023 00:18:52 GMT",
"version": "v4"
},
{
"cr... | 2024-06-21 | [
[
"Shen",
"Zibo",
""
],
[
"Wang",
"Anzhong",
""
],
[
"Gong",
"Yungui",
""
],
[
"Yin",
"Shaoyu",
""
]
] | In this Letter, we present five analytical models in closed forms, each representing a supermassive black hole (SMBH) located at the center of a galaxy surrounded by dark matter (DM) halo. The density profile of the halo vanishes inside twice the Schwarzschild radius of the hole and satisfies the weak, strong, and domi... |
1006.4059 | Luca Rizzi | Luca Rizzi, Sergio Cacciatori, Vittorio Gorini, Alexander Kamenshchik,
Oliver F. Piattella | Dark matter effects in vacuum spacetime | 5 pages, 2 figures, expanded with comments about the exact motion and
curvature invariants | Phys.Rev.D82:027301,2010 | 10.1103/PhysRevD.82.027301 | null | gr-qc physics.gen-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We analyze a toy model describing an empty spacetime in which the motion of a
test mass (and the trajectories of photons) evidence the presence of a
continuous and homogeneous distribution of matter; however, since the
energy-momentum tensor vanishes, no real matter or energy distribution is
present at all. Thus, a h... | [
{
"created": "Mon, 21 Jun 2010 13:08:13 GMT",
"version": "v1"
},
{
"created": "Tue, 27 Jul 2010 18:07:20 GMT",
"version": "v2"
}
] | 2014-11-21 | [
[
"Rizzi",
"Luca",
""
],
[
"Cacciatori",
"Sergio",
""
],
[
"Gorini",
"Vittorio",
""
],
[
"Kamenshchik",
"Alexander",
""
],
[
"Piattella",
"Oliver F.",
""
]
] | We analyze a toy model describing an empty spacetime in which the motion of a test mass (and the trajectories of photons) evidence the presence of a continuous and homogeneous distribution of matter; however, since the energy-momentum tensor vanishes, no real matter or energy distribution is present at all. Thus, a hyp... |
1401.1282 | Cosimo Bambi | Zilong Li, Lingyao Kong, Cosimo Bambi | Testing the nature of the supermassive black hole candidate in SgrA*
with light curves and images of hot spots | 16 pages, 14 figures. v3: refereed version | Astrophys.J.787:152,2014 | 10.1088/0004-637X/787/2/152 | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | General relativity makes clear predictions about the spacetime geometry
around black holes. In the near future, new facilities will have the capability
to explore the metric around SgrA$^*$, the supermassive black hole candidate at
the Center of our Galaxy, and open a new window to test the Kerr black hole
hypothesis... | [
{
"created": "Tue, 7 Jan 2014 06:10:12 GMT",
"version": "v1"
},
{
"created": "Thu, 20 Mar 2014 15:26:42 GMT",
"version": "v2"
},
{
"created": "Thu, 15 May 2014 00:56:06 GMT",
"version": "v3"
}
] | 2014-05-16 | [
[
"Li",
"Zilong",
""
],
[
"Kong",
"Lingyao",
""
],
[
"Bambi",
"Cosimo",
""
]
] | General relativity makes clear predictions about the spacetime geometry around black holes. In the near future, new facilities will have the capability to explore the metric around SgrA$^*$, the supermassive black hole candidate at the Center of our Galaxy, and open a new window to test the Kerr black hole hypothesis. ... |
0804.0328 | Gerard Hooft 't | Gerard 't Hooft | A locally finite model for gravity | 26 pages, 9 figures | Found.Phys.38:733-757,2008 | 10.1007/s10701-008-9231-3 | ITP-UU-08/17, SPIN-08/16 | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Matter interacting classically with gravity in 3+1 dimensions usually gives
rise to a continuum of degrees of freedom, so that, in any attempt to quantize
the theory, ultraviolet divergences are nearly inevitable. Here, we investigate
matter of a form that only displays a finite number of degrees of freedom in
compac... | [
{
"created": "Wed, 2 Apr 2008 11:11:28 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Hooft",
"Gerard 't",
""
]
] | Matter interacting classically with gravity in 3+1 dimensions usually gives rise to a continuum of degrees of freedom, so that, in any attempt to quantize the theory, ultraviolet divergences are nearly inevitable. Here, we investigate matter of a form that only displays a finite number of degrees of freedom in compact ... |
2312.17680 | Lionel London | Lionel London and Michelle Gurevich | Natural polynomials for Kerr quasi-normal modes | 19 pages, 7 figures | null | null | null | gr-qc math-ph math.MP math.SP | http://creativecommons.org/licenses/by/4.0/ | We present a polynomial basis that exactly tridiagonalizes Teukolsky's radial
equation for quasi-normal modes. These polynomials naturally emerge from the
radial problem, and they are "canonical" in that they possess key features of
classical polynomials. Our canonical polynomials may be constructed using
various met... | [
{
"created": "Fri, 29 Dec 2023 16:55:05 GMT",
"version": "v1"
},
{
"created": "Mon, 1 Jan 2024 18:58:12 GMT",
"version": "v2"
}
] | 2024-01-02 | [
[
"London",
"Lionel",
""
],
[
"Gurevich",
"Michelle",
""
]
] | We present a polynomial basis that exactly tridiagonalizes Teukolsky's radial equation for quasi-normal modes. These polynomials naturally emerge from the radial problem, and they are "canonical" in that they possess key features of classical polynomials. Our canonical polynomials may be constructed using various metho... |
gr-qc/0102114 | Keith H. Lockitch | John L. Friedman, Keith H. Lockitch | Implications of the r-mode instability of rotating relativistic stars | 20 pages LaTeX2e (stylefile included), 6 eps figures. Review to
appear in the proceedings of the 9th Marcel Grossman Meeting, World
Scientific, ed. V. Gurzadyan, R. Jantzen, R. Ruffini | null | 10.1142/9789812777386_0013 | CGPG-01/3-1 | gr-qc astro-ph | null | Several recent surprises appear dramatically to have improved the likelihood
that the spin of rapidly rotating, newly formed neutron stars (and, possibly,
of old stars spun up by accretion) is limited by a nonaxisymmetric instability
driven by gravitational waves. Except for the earliest part of the spin-down,
the ax... | [
{
"created": "Wed, 28 Feb 2001 19:10:19 GMT",
"version": "v1"
},
{
"created": "Thu, 1 Mar 2001 20:18:45 GMT",
"version": "v2"
}
] | 2017-08-23 | [
[
"Friedman",
"John L.",
""
],
[
"Lockitch",
"Keith H.",
""
]
] | Several recent surprises appear dramatically to have improved the likelihood that the spin of rapidly rotating, newly formed neutron stars (and, possibly, of old stars spun up by accretion) is limited by a nonaxisymmetric instability driven by gravitational waves. Except for the earliest part of the spin-down, the axia... |
1909.06755 | Matt Visser | Petarpa Boonserm (Chulalongkorn University, Thailand Center of
Excellence in Physics), Tritos Ngampitipan (Chandrakasem Rajabhat University,
Thailand Center of Excellence in Physics), Alex Simpson (Victoria University
of Wellington), and Matt Visser (Victoria University of Wellington) | ISCOs and OSCOs in the presence of positive cosmological constant | V1: 14 pages; V2: four references added, minor rephrasing, no change
in physics conclusions; V3: now 20 pages; four more references added; extra
discussion regarding Paczynski-Wiita potential and Jeans scale. Closely
corresponds to published version | Phys. Rev. D 101, 024050 (2020) | 10.1103/PhysRevD.101.024050 | null | gr-qc astro-ph.GA | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Normally one thinks of the observed cosmological constant as being so small
that it can be utterly neglected on typical astrophysical scales, only
affecting extremely large-scale cosmology at Gigaparsec scales. Indeed, in
those situations where the cosmological constant only has a quantitative
influence on the physic... | [
{
"created": "Sun, 15 Sep 2019 07:43:53 GMT",
"version": "v1"
},
{
"created": "Mon, 23 Sep 2019 00:24:03 GMT",
"version": "v2"
},
{
"created": "Wed, 29 Jan 2020 22:57:51 GMT",
"version": "v3"
}
] | 2020-02-05 | [
[
"Boonserm",
"Petarpa",
"",
"Chulalongkorn University, Thailand Center of\n Excellence in Physics"
],
[
"Ngampitipan",
"Tritos",
"",
"Chandrakasem Rajabhat University,\n Thailand Center of Excellence in Physics"
],
[
"Simpson",
"Alex",
"",
"Victoria Univers... | Normally one thinks of the observed cosmological constant as being so small that it can be utterly neglected on typical astrophysical scales, only affecting extremely large-scale cosmology at Gigaparsec scales. Indeed, in those situations where the cosmological constant only has a quantitative influence on the physics,... |
gr-qc/9706018 | null | S. Deser and Orit Levin | Accelerated Detectors and Temperature in (Anti) de Sitter Spaces | Latex +2 Fig | Class.Quant.Grav.14:L163-L168,1997 | 10.1088/0264-9381/14/9/003 | BRX-TH 415 | gr-qc hep-th | null | We show, in complete accord with the usual Rindler picture, that detectors
with constant acceleration $a$ in de Sitter (dS) and Anti de Sitter (AdS)
spaces with cosmological constants $\Lambda$ measure temperatures $2\pi
T=(\Lambda/3+a^{2})^{1/2}\equiv a_{5}$, the detector "5-acceleration" in the
embedding flat 5-spa... | [
{
"created": "Fri, 6 Jun 1997 19:45:44 GMT",
"version": "v1"
}
] | 2010-04-06 | [
[
"Deser",
"S.",
""
],
[
"Levin",
"Orit",
""
]
] | We show, in complete accord with the usual Rindler picture, that detectors with constant acceleration $a$ in de Sitter (dS) and Anti de Sitter (AdS) spaces with cosmological constants $\Lambda$ measure temperatures $2\pi T=(\Lambda/3+a^{2})^{1/2}\equiv a_{5}$, the detector "5-acceleration" in the embedding flat 5-space... |
0911.5512 | Leonid V. Verozub | Leonid V. Verozub | On some fundamental problems of the theory of gravitation | 9 pages, latex | null | null | null | gr-qc | http://creativecommons.org/licenses/by/3.0/ | Cosmological observations indicate that the Einstein equation may not be
entirely correct to describe gravity.
However, numerous modifications of these equations usually do not affect
foundations of the theory. In this paper two important issue that lead to a
substantial revision of the theory are considered : 1. T... | [
{
"created": "Sun, 29 Nov 2009 20:11:19 GMT",
"version": "v1"
}
] | 2009-12-01 | [
[
"Verozub",
"Leonid V.",
""
]
] | Cosmological observations indicate that the Einstein equation may not be entirely correct to describe gravity. However, numerous modifications of these equations usually do not affect foundations of the theory. In this paper two important issue that lead to a substantial revision of the theory are considered : 1. The s... |
1804.02902 | Furkan Semih D\"undar | Furkan Semih D\"undar, Zahra Mirzaiyan, Metin Arik | Gravitational collapse of thin shell of dust in shape dynamics | 6 pages, 3 figures | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We studied the gravitational collapse of a shell of dust in shape dynamics.
We found out static and oscillatory solutions. In the large momentum limit we
found out that the shell never reaches the singularity when the momentum of the
shell is much larger than the mass of the shell in magnitude. The shell does
not rea... | [
{
"created": "Mon, 9 Apr 2018 10:39:22 GMT",
"version": "v1"
}
] | 2018-04-10 | [
[
"Dündar",
"Furkan Semih",
""
],
[
"Mirzaiyan",
"Zahra",
""
],
[
"Arik",
"Metin",
""
]
] | We studied the gravitational collapse of a shell of dust in shape dynamics. We found out static and oscillatory solutions. In the large momentum limit we found out that the shell never reaches the singularity when the momentum of the shell is much larger than the mass of the shell in magnitude. The shell does not reach... |
2105.07455 | Rodrigo Tenorio | Rodrigo Tenorio, LIGO Scientific Collaboration, Virgo Collaboration | An all-sky search in early O3 LIGO data for continuous
gravitational-wave signals from unknown neutron stars in binary systems | contribution to the 2021 Gravitation session of the 55th Rencontres
de Moriond | null | null | LIGO-P2100166 | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present a search for continuous gravitational waves emitted by neutron
stars in binary systems conducted on data from the early third observing run of
the Advanced LIGO and Advanced Virgo detectors using the semicoherent,
GPU-accelerated, BinarySkyHough pipeline. The search analyzes the most
sensitive frequency ba... | [
{
"created": "Sun, 16 May 2021 15:41:30 GMT",
"version": "v1"
}
] | 2021-05-18 | [
[
"Tenorio",
"Rodrigo",
""
],
[
"Collaboration",
"LIGO Scientific",
""
],
[
"Collaboration",
"Virgo",
""
]
] | We present a search for continuous gravitational waves emitted by neutron stars in binary systems conducted on data from the early third observing run of the Advanced LIGO and Advanced Virgo detectors using the semicoherent, GPU-accelerated, BinarySkyHough pipeline. The search analyzes the most sensitive frequency band... |
2403.01495 | Haximjan Abdusattar | Haximjan Abdusattar, Shi-Bei Kong, Minawar Omar, Zhong-Wen Feng | Thermodynamics of the arbitrary dimensional FRW universe: Joule-Thomson
expansion | 16 pages,15 figures | null | null | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper, we investigate the thermodynamics especially the Joule-Thomson
expansion of the $n$-dimensional FRW (Friedmann-Robertson-Walker) universe with
a perfect fluid. We derive the thermodynamic equations of state $P=P(V, T)$ for
the $n$-dimensional FRW universe in Einstein gravity and Einstein-Gauss-Bonnet
g... | [
{
"created": "Sun, 3 Mar 2024 12:11:21 GMT",
"version": "v1"
}
] | 2024-03-05 | [
[
"Abdusattar",
"Haximjan",
""
],
[
"Kong",
"Shi-Bei",
""
],
[
"Omar",
"Minawar",
""
],
[
"Feng",
"Zhong-Wen",
""
]
] | In this paper, we investigate the thermodynamics especially the Joule-Thomson expansion of the $n$-dimensional FRW (Friedmann-Robertson-Walker) universe with a perfect fluid. We derive the thermodynamic equations of state $P=P(V, T)$ for the $n$-dimensional FRW universe in Einstein gravity and Einstein-Gauss-Bonnet gra... |
2007.07160 | Silke Weinfurtner | Cisco Gooding, Steffen Biermann, Sebastian Erne, Jorma Louko, William
G. Unruh, Joerg Schmiedmayer and Silke Weinfurtner | Interferometric Unruh detectors for Bose-Einstein condensates | 9 pages, 2 figures | Phys. Rev. Lett. 125, 213603 (2020) | 10.1103/PhysRevLett.125.213603 | null | gr-qc cond-mat.quant-gas | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The Unruh effect predicts a thermal response for an accelerated detector
moving through the vacuum. Here we propose an interferometric scheme to observe
an analogue of the circular Unruh effect using a localized laser coupled to a
Bose-Einstein condensate (BEC). Quantum fluctuations in the condensate are
governed by ... | [
{
"created": "Tue, 14 Jul 2020 16:27:55 GMT",
"version": "v1"
},
{
"created": "Sun, 20 Dec 2020 10:19:04 GMT",
"version": "v2"
}
] | 2020-12-22 | [
[
"Gooding",
"Cisco",
""
],
[
"Biermann",
"Steffen",
""
],
[
"Erne",
"Sebastian",
""
],
[
"Louko",
"Jorma",
""
],
[
"Unruh",
"William G.",
""
],
[
"Schmiedmayer",
"Joerg",
""
],
[
"Weinfurtner",
"Silke",
""
... | The Unruh effect predicts a thermal response for an accelerated detector moving through the vacuum. Here we propose an interferometric scheme to observe an analogue of the circular Unruh effect using a localized laser coupled to a Bose-Einstein condensate (BEC). Quantum fluctuations in the condensate are governed by an... |
gr-qc/9901064 | null | Ruggiero de Ritis, Giuseppe Marmo, Bruno Preziosi | A new look at relativity transformations | 19 pages, Latex, 1 figure. Gen. Rel. Grav., to be published | Gen.Rel.Grav. 31 (1999) 1501-1517 | null | null | gr-qc | null | A free system, considered to be a comparison system, allows for the notion of
objective existence and inertial frame. Transformations connecting inertial
frames are shown to be either Lorentz or generalized Galilei.
| [
{
"created": "Sat, 23 Jan 1999 11:17:35 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"de Ritis",
"Ruggiero",
""
],
[
"Marmo",
"Giuseppe",
""
],
[
"Preziosi",
"Bruno",
""
]
] | A free system, considered to be a comparison system, allows for the notion of objective existence and inertial frame. Transformations connecting inertial frames are shown to be either Lorentz or generalized Galilei. |
1205.1390 | Md. Rahman Atiqur | M. Atiqur Rahman, M. Ilias Hossain | Hawking Non-thermal and Thermal Radiations of Schwarzschild Anti-de
Sitter Black Hole by Hamilton-Jacobi method | 6 pages. arXiv admin note: text overlap with arXiv:hep-th/0512351 | Astrophys Space Sci 345 (2013) 325 | 10.1007/s10509-013-1391-8 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The massive particles tunneling method has been used to investigate the
Hawking non-thermal and purely thermal radiations of Schwarzschild Anti-de
Sitter (SAdS) black hole. Considering the spacetime background to be dynamical,
incorporate the self-gravitation effect of the emitted particles the imaginary
part of the ... | [
{
"created": "Mon, 7 May 2012 13:55:36 GMT",
"version": "v1"
}
] | 2013-05-28 | [
[
"Rahman",
"M. Atiqur",
""
],
[
"Hossain",
"M. Ilias",
""
]
] | The massive particles tunneling method has been used to investigate the Hawking non-thermal and purely thermal radiations of Schwarzschild Anti-de Sitter (SAdS) black hole. Considering the spacetime background to be dynamical, incorporate the self-gravitation effect of the emitted particles the imaginary part of the ac... |
1008.2787 | Georgii Alekseev | G.A. Alekseev | Comment on F.J.Ernst, V.S.Manko and E.Ruiz "On interrelations between
Sibgatullin's and Alekseev's approaches to the construction of exact
solutions of the Einstein-Maxwell equations"
(J.Phys.:Conf.Ser.229(2010)012050; arXiv:1006.5118) | 11 pages, no figures | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The necessity of this Comment was invoked by numerous mistakes, erroneous
discussions and misleading citations curiously collected in the paper of
F.J.Ernst, V.S.Manko and E.Ruiz and concerning the interrelations between two
integral equation methods developed for solution of Einstein - Maxwell
equations more than tw... | [
{
"created": "Mon, 16 Aug 2010 22:51:20 GMT",
"version": "v1"
}
] | 2010-08-18 | [
[
"Alekseev",
"G. A.",
""
]
] | The necessity of this Comment was invoked by numerous mistakes, erroneous discussions and misleading citations curiously collected in the paper of F.J.Ernst, V.S.Manko and E.Ruiz and concerning the interrelations between two integral equation methods developed for solution of Einstein - Maxwell equations more than twen... |
2407.18973 | Mirda Wijayanto Prisma | Mirda Prisma Wijayanto, Fiki Taufik Akbar, Bobby Eka Gunara | Classical Solutions of Higher Dimensional Einstein-Maxwell-Higgs System
With Nontrivial Potential: Global Existence and Completeness | 45 pages, no figure. arXiv admin note: text overlap with
arXiv:2304.09449 | null | null | null | gr-qc hep-th math-ph math.MP | http://creativecommons.org/licenses/by/4.0/ | We study the Cauchy problem of higher dimensional Einstein-Maxwell-Higgs
system in the framework of Bondi coordinates. As a first step, the problem is
reduced to a single first-order integro-differential equation by defining a
generalized ansatz function. Then, we employ contraction mapping to show that
there exists ... | [
{
"created": "Mon, 22 Jul 2024 12:16:04 GMT",
"version": "v1"
}
] | 2024-07-30 | [
[
"Wijayanto",
"Mirda Prisma",
""
],
[
"Akbar",
"Fiki Taufik",
""
],
[
"Gunara",
"Bobby Eka",
""
]
] | We study the Cauchy problem of higher dimensional Einstein-Maxwell-Higgs system in the framework of Bondi coordinates. As a first step, the problem is reduced to a single first-order integro-differential equation by defining a generalized ansatz function. Then, we employ contraction mapping to show that there exists th... |
gr-qc/9603028 | Hideyuki Tagoshi | Hideyuki Tagoshi, Masaru Shibata, Takahiro Tanaka, Misao Sasaki | Post-Newtonian expansion of gravitational waves from a particle in
circular orbits around a rotating black hole: Up to $O(v^8)$ beyond the
quadrupole formula | 27 pages, revtex, 6 figures, submitted to Physical Review D | Phys.Rev.D54:1439-1459,1996 | 10.1103/PhysRevD.54.1439 | GRP-434, OU-TAP 28 | gr-qc | null | Extending a method developed by Sasaki in the Schwarzschild case and by
Shibata, Sasaki, Tagoshi, and Tanaka in the Kerr case, we calculate the
post-Newtonian expansion of the gravitational wave luminosities from a test
particle in circular orbit around a rotating black hole up to $O(v^8)$ beyond
the quadrupole formu... | [
{
"created": "Tue, 19 Mar 1996 09:13:22 GMT",
"version": "v1"
}
] | 2009-10-09 | [
[
"Tagoshi",
"Hideyuki",
""
],
[
"Shibata",
"Masaru",
""
],
[
"Tanaka",
"Takahiro",
""
],
[
"Sasaki",
"Misao",
""
]
] | Extending a method developed by Sasaki in the Schwarzschild case and by Shibata, Sasaki, Tagoshi, and Tanaka in the Kerr case, we calculate the post-Newtonian expansion of the gravitational wave luminosities from a test particle in circular orbit around a rotating black hole up to $O(v^8)$ beyond the quadrupole formula... |
2303.03931 | Chen Lan | Han-Wen Hu, Chen Lan and Yan-Gang Miao | A regular black hole as the final state of evolution of a singular black
hole | Final version to appear in the EPJC, 42 pages, 24 figures, references
added | Eur. Phys. J. C 83, 1047 (2023) | 10.1140/epjc/s10052-023-12228-w | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | We propose a novel black hole model in which singular and regular black holes
are combined as a whole and more precisely singular and regular black holes are
regarded as different states of parameter evolution. We refer to them as
singular and regular states, respectively. Furthermore, the regular state is
depicted b... | [
{
"created": "Tue, 7 Mar 2023 14:38:18 GMT",
"version": "v1"
},
{
"created": "Sun, 30 Apr 2023 00:28:42 GMT",
"version": "v2"
},
{
"created": "Tue, 2 May 2023 07:17:59 GMT",
"version": "v3"
},
{
"created": "Fri, 17 Nov 2023 02:47:15 GMT",
"version": "v4"
}
] | 2023-11-20 | [
[
"Hu",
"Han-Wen",
""
],
[
"Lan",
"Chen",
""
],
[
"Miao",
"Yan-Gang",
""
]
] | We propose a novel black hole model in which singular and regular black holes are combined as a whole and more precisely singular and regular black holes are regarded as different states of parameter evolution. We refer to them as singular and regular states, respectively. Furthermore, the regular state is depicted by ... |
gr-qc/0109049 | Lee Samuel Finn | Lee Samuel Finn and Patrick J. Sutton | Bounding the mass of the graviton using binary pulsar observations | 16 pages, 1 figure. Added appendix on other choices for mass term | Phys.Rev.D65:044022,2002 | 10.1103/PhysRevD.65.044022 | null | gr-qc astro-ph hep-th | null | The close agreement between the predictions of dynamical general relativity
for the radiated power of a compact binary system and the observed orbital
decay of the binary pulsars PSR B1913+16 and PSR B1534+12 allows us to bound
the graviton mass to be less than 7.6 x 10^{-20} eV with 90% confidence. This
bound is the... | [
{
"created": "Thu, 13 Sep 2001 20:10:19 GMT",
"version": "v1"
},
{
"created": "Tue, 14 May 2002 17:34:55 GMT",
"version": "v2"
}
] | 2008-11-26 | [
[
"Finn",
"Lee Samuel",
""
],
[
"Sutton",
"Patrick J.",
""
]
] | The close agreement between the predictions of dynamical general relativity for the radiated power of a compact binary system and the observed orbital decay of the binary pulsars PSR B1913+16 and PSR B1534+12 allows us to bound the graviton mass to be less than 7.6 x 10^{-20} eV with 90% confidence. This bound is the f... |
2201.11445 | Sebasti\'an Bahamonde Dr | Sebastian Bahamonde, Ludovic Ducobu, Christian Pfeifer | Scalarized Black Holes in Teleparallel Gravity | 20 pages. Matches published version in JCAP | JCAP 04 (2022) 04, 018 | 10.1088/1475-7516/2022/04/018 | null | gr-qc astro-ph.HE hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Black holes play a crucial role in the understanding of the gravitational
interaction. Through the direct observation of the shadow of a black hole by
the event horizon telescope and the detection of gravitational waves of merging
black holes we now start to have direct access to their properties and
behaviour, which... | [
{
"created": "Thu, 27 Jan 2022 11:07:11 GMT",
"version": "v1"
},
{
"created": "Mon, 18 Apr 2022 04:35:44 GMT",
"version": "v2"
}
] | 2022-04-19 | [
[
"Bahamonde",
"Sebastian",
""
],
[
"Ducobu",
"Ludovic",
""
],
[
"Pfeifer",
"Christian",
""
]
] | Black holes play a crucial role in the understanding of the gravitational interaction. Through the direct observation of the shadow of a black hole by the event horizon telescope and the detection of gravitational waves of merging black holes we now start to have direct access to their properties and behaviour, which m... |
2404.10742 | Zhong-Hao Luo | Zhong-Hao Luo, Yun-Long Zhang | Superradiant instability of area quantized Kerr black hole with discrete
reflectivity | 10 pages, 5 figures | null | null | null | gr-qc astro-ph.HE hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Ultralight bosons can condense to form the so-called bosonic clouds around
spinning black holes by superradiance instability. When quantum effects are
taken into account, the classical black holes were replaced by exotic compact
objects including area quantized black holes. In this work, we consider the
superradiant ... | [
{
"created": "Tue, 16 Apr 2024 17:18:07 GMT",
"version": "v1"
},
{
"created": "Sat, 10 Aug 2024 01:47:19 GMT",
"version": "v2"
}
] | 2024-08-13 | [
[
"Luo",
"Zhong-Hao",
""
],
[
"Zhang",
"Yun-Long",
""
]
] | Ultralight bosons can condense to form the so-called bosonic clouds around spinning black holes by superradiance instability. When quantum effects are taken into account, the classical black holes were replaced by exotic compact objects including area quantized black holes. In this work, we consider the superradiant in... |
1203.1859 | Lorenzo Iorio | Lorenzo Iorio | Orbital effects of Lorentz-violating Standard Model Extension
gravitomagnetism around a static body: a sensitivity analysis | LaTex2e, 9 pages, no figures, 3 tables, 25 references. Typos fixed | Class. Quant. Gravit..29:175007,2012 | 10.1088/0264-9381/29/17/175007 | null | gr-qc astro-ph.EP physics.space-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We analytically work out the long-term rates of change of the six osculating
Keplerian orbital elements of a test particle acted upon by the
Lorentz-violating gravitomagnetic acceleration due to a static body, as
predicted by the Standard Model Extension (SME). We neither restrict to any
specific spatial orientation ... | [
{
"created": "Thu, 8 Mar 2012 17:31:10 GMT",
"version": "v1"
},
{
"created": "Sun, 11 Mar 2012 01:07:18 GMT",
"version": "v2"
}
] | 2012-08-22 | [
[
"Iorio",
"Lorenzo",
""
]
] | We analytically work out the long-term rates of change of the six osculating Keplerian orbital elements of a test particle acted upon by the Lorentz-violating gravitomagnetic acceleration due to a static body, as predicted by the Standard Model Extension (SME). We neither restrict to any specific spatial orientation fo... |
1610.09819 | Panagiota Kanti | Athanasios Bakopoulos and Panagiota Kanti | Novel Ansatzes and Scalar Quantities in Gravito-Electromagnetism | Latex2e file, 29 pages, comments and references added, a shortened
version to appear in General Relativity and Gravitation | null | 10.1007/s10714-017-2207-x | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this work, we focus on the theory of Gravito-Electromagnetism (GEM) -- the
theory that describes the dynamics of the gravitational field in terms of
quantities met in Electromagnetism -- and we propose two novel forms of metric
perturbations. The first one is a generalisation of the traditional GEM ansatz,
and suc... | [
{
"created": "Mon, 31 Oct 2016 08:28:02 GMT",
"version": "v1"
},
{
"created": "Fri, 10 Mar 2017 07:55:50 GMT",
"version": "v2"
}
] | 2017-03-13 | [
[
"Bakopoulos",
"Athanasios",
""
],
[
"Kanti",
"Panagiota",
""
]
] | In this work, we focus on the theory of Gravito-Electromagnetism (GEM) -- the theory that describes the dynamics of the gravitational field in terms of quantities met in Electromagnetism -- and we propose two novel forms of metric perturbations. The first one is a generalisation of the traditional GEM ansatz, and succe... |
2208.10882 | Mordehai Milgrom | Mordehai Milgrom | Broader view of bimetric MOND | 18 pages. Version matching the published one | Physical Review D 106, 084010 (2022) | 10.1103/PhysRevD.106.084010 | null | gr-qc astro-ph.CO astro-ph.GA hep-ph | http://creativecommons.org/licenses/by/4.0/ | All existing treatments of bimetric MOND (BIMOND) -- a class of relativistic
versions of MOND -- have dealt with a rather restricted sub-class: The
Lagrangian of the interaction between the gravitational degrees of freedom --
the two metrics -- is a function of a certain {\it single} scalar argument
built from the di... | [
{
"created": "Tue, 23 Aug 2022 11:32:09 GMT",
"version": "v1"
},
{
"created": "Wed, 21 Sep 2022 13:00:17 GMT",
"version": "v2"
},
{
"created": "Tue, 11 Oct 2022 09:29:38 GMT",
"version": "v3"
}
] | 2022-10-12 | [
[
"Milgrom",
"Mordehai",
""
]
] | All existing treatments of bimetric MOND (BIMOND) -- a class of relativistic versions of MOND -- have dealt with a rather restricted sub-class: The Lagrangian of the interaction between the gravitational degrees of freedom -- the two metrics -- is a function of a certain {\it single} scalar argument built from the diff... |
1109.0330 | Michael Coughlin | LIGO Scientific Collaboration, Virgo Collaboration: Michael W.
Coughlin | Noise Line Identification in LIGO S6 and Virgo VSR2 | 9 pages, 4 figures, 14th Gravitational Wave Data Analysis Workshop
(Rome, Italy) | 2010 J. Phys.: Conf. Ser. 243 012010 | 10.1088/1742-6596/243/1/012010 | null | gr-qc astro-ph.IM | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | An important goal for LIGO (the Laser Interferometer Gravitational-Wave
Observatory) and Virgo is to find periodic sources of gravitational waves. The
LIGO and Virgo detectors are sensitive to a variety of noise of
non-astrophysical origin, such as instrumental artifacts and environmental
disturbances. These artifact... | [
{
"created": "Fri, 2 Sep 2011 00:03:51 GMT",
"version": "v1"
}
] | 2012-08-27 | [
[
"LIGO Scientific Collaboration",
"",
""
],
[
"Virgo Collaboration",
"",
""
],
[
"Coughlin",
"Michael W.",
""
]
] | An important goal for LIGO (the Laser Interferometer Gravitational-Wave Observatory) and Virgo is to find periodic sources of gravitational waves. The LIGO and Virgo detectors are sensitive to a variety of noise of non-astrophysical origin, such as instrumental artifacts and environmental disturbances. These artifacts ... |
1009.1985 | Eliu Huerta | E.A. Huerta and Jonathan R. Gair | Intermediate-mass-ratio-inspirals in the Einstein Telescope: I.
Signal-to-noise ratio calculations | 27 pages, 9 figures, v3 has an updated reference for consistency with
accepted version | Phys.Rev.D83:044020,2011 | 10.1103/PhysRevD.83.044020 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The Einstein Telescope (ET) is a proposed third generation ground-based
interferometer, for which the target is a sensitivity that is a factor of ten
better than Advanced LIGO and a frequency range that extends down to about 1Hz.
ET will provide opportunities to test Einstein's theory of relativity in the
strong fiel... | [
{
"created": "Fri, 10 Sep 2010 11:34:22 GMT",
"version": "v1"
},
{
"created": "Mon, 27 Dec 2010 17:04:06 GMT",
"version": "v2"
},
{
"created": "Fri, 11 Feb 2011 10:23:50 GMT",
"version": "v3"
}
] | 2011-02-18 | [
[
"Huerta",
"E. A.",
""
],
[
"Gair",
"Jonathan R.",
""
]
] | The Einstein Telescope (ET) is a proposed third generation ground-based interferometer, for which the target is a sensitivity that is a factor of ten better than Advanced LIGO and a frequency range that extends down to about 1Hz. ET will provide opportunities to test Einstein's theory of relativity in the strong field ... |
1205.4055 | Santanu Das | Santanu Das | Machian gravity and a cosmology without dark matter and dark energy | 12 pages | null | null | null | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The standard model of cosmology is based on the general theory of relativity
and demands more than 95\% of the universe to consist of dark matter and dark
energy that has no direct observational evidence till date. The foundation of
the concept these dark components are based on a fixed relation between the
strength ... | [
{
"created": "Thu, 17 May 2012 22:48:47 GMT",
"version": "v1"
},
{
"created": "Fri, 10 Apr 2015 16:14:52 GMT",
"version": "v2"
}
] | 2015-04-13 | [
[
"Das",
"Santanu",
""
]
] | The standard model of cosmology is based on the general theory of relativity and demands more than 95\% of the universe to consist of dark matter and dark energy that has no direct observational evidence till date. The foundation of the concept these dark components are based on a fixed relation between the strength of... |
gr-qc/9510005 | Kiyoshi Shiraishi | Kiyoshi Shiraishi (Akita Junior College) and Takuya Maki (Kitasato
Univ.) | Statistical Mechanics of Charged Particles in Einstein-Maxwell-Scalar
Theory | 11 pages, RevTeX3.0 | Phys.Rev.D53:3070-3073,1996 | 10.1103/PhysRevD.53.3070 | AJC-HEP-27 | gr-qc | null | We consider an $N$-body system of charged particle coupled to gravitational,
electromagnetic, and scalar fields. The metric on moduli space for the system
can be considered if a relation among the charges and mass is satisfied, which
includes the BPS relation for monopoles and the extreme condition for charged
black ... | [
{
"created": "Wed, 4 Oct 1995 09:30:35 GMT",
"version": "v1"
}
] | 2014-11-17 | [
[
"Shiraishi",
"Kiyoshi",
"",
"Akita Junior College"
],
[
"Maki",
"Takuya",
"",
"Kitasato\n Univ."
]
] | We consider an $N$-body system of charged particle coupled to gravitational, electromagnetic, and scalar fields. The metric on moduli space for the system can be considered if a relation among the charges and mass is satisfied, which includes the BPS relation for monopoles and the extreme condition for charged black ho... |
1902.05851 | Jose Luis Bl\'azquez-Salcedo | Jose Luis Bl\'azquez-Salcedo, Christian Knoll, Eugen Radu | Boson and Dirac stars in $D\geq 4$ dimensions | 15 pages, 4 figures | Phys.Lett. B793 (2019) 161-168 | 10.1016/j.physletb.2019.04.035 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present a comparative study of spherically symmetric, localized,
particle-like solutions for spin $s=0,1/2$ and $1$ gravitating fields in a
$D$-dimensional, asymptotically flat spacetime. These fields are massive,
possessing a harmonic time dependence and no self-interaction. Special
attention is paid to the mathe... | [
{
"created": "Fri, 15 Feb 2019 15:38:06 GMT",
"version": "v1"
}
] | 2020-02-26 | [
[
"Blázquez-Salcedo",
"Jose Luis",
""
],
[
"Knoll",
"Christian",
""
],
[
"Radu",
"Eugen",
""
]
] | We present a comparative study of spherically symmetric, localized, particle-like solutions for spin $s=0,1/2$ and $1$ gravitating fields in a $D$-dimensional, asymptotically flat spacetime. These fields are massive, possessing a harmonic time dependence and no self-interaction. Special attention is paid to the mathema... |
2104.13760 | Ghulam Mustafa | G. Mustafa, Mushtaq Ahmad, Ali \"Ovg\"un, M. Farasat Shamir, Ibrar
Hussain | Traversable wormholes in the extended teleparallel theory of gravity
with matter coupling | 20 pages, 13 figures, submitted for publication | Fortschr. Phys. 2021, 69, 2100048 | 10.1002/prop.202100048 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | This study explores the Gaussian and the Lorentzian distributed spherically
symmetric wormhole solutions in the $f(\tau, T)$ gravity. The basic idea of the
Gaussian and Lorentzian noncommutative geometries emerges as the physically
acceptable and substantial notion in quantum physics. This idea of the
noncommutative ... | [
{
"created": "Tue, 27 Apr 2021 10:04:49 GMT",
"version": "v1"
}
] | 2023-01-31 | [
[
"Mustafa",
"G.",
""
],
[
"Ahmad",
"Mushtaq",
""
],
[
"Övgün",
"Ali",
""
],
[
"Shamir",
"M. Farasat",
""
],
[
"Hussain",
"Ibrar",
""
]
] | This study explores the Gaussian and the Lorentzian distributed spherically symmetric wormhole solutions in the $f(\tau, T)$ gravity. The basic idea of the Gaussian and Lorentzian noncommutative geometries emerges as the physically acceptable and substantial notion in quantum physics. This idea of the noncommutative ge... |
1801.00911 | Hamidreza Saiedi | H. Saiedi | Energy Conditions in Palatini Approach to Modified $f(R)$ Gravity | null | Journal of High Energy Physics, Gravitation and Cosmology, Vol.6
No.4, (2020) | 10.4236/jhepgc.2020.64046 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper, we review modified $f(R)$ theories of gravity in Palatini
formalism. In this framework, , we use the Raychaudhuri's equation along with
the requirement that the gravity is attractive, which holds for any geometrical
theory of gravity to discuss the energy conditions. Then, to derive these
conditions, w... | [
{
"created": "Wed, 3 Jan 2018 06:15:44 GMT",
"version": "v1"
}
] | 2021-03-02 | [
[
"Saiedi",
"H.",
""
]
] | In this paper, we review modified $f(R)$ theories of gravity in Palatini formalism. In this framework, , we use the Raychaudhuri's equation along with the requirement that the gravity is attractive, which holds for any geometrical theory of gravity to discuss the energy conditions. Then, to derive these conditions, we ... |
0704.3769 | Matthew Glenz | Matthew M. Glenz and Koji Uryu | Circular solution of two unequal mass particles in post-Minkowski
approximation | 4 pages, 4 figures, 4/27/07 | Phys.Rev.D76:027501,2007 | 10.1103/PhysRevD.76.027501 | DPUR/TH/2 | gr-qc | null | A Fokker action for post-Minkowski approximation with the first
post-Newtonian correction is introduced in our previous paper, and a solution
for the helically symmetric circular orbit is obtained. We present supplemental
results for the circular solution of two unequal mass point-particles. Circular
solutions for se... | [
{
"created": "Sat, 28 Apr 2007 02:12:32 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Glenz",
"Matthew M.",
""
],
[
"Uryu",
"Koji",
""
]
] | A Fokker action for post-Minkowski approximation with the first post-Newtonian correction is introduced in our previous paper, and a solution for the helically symmetric circular orbit is obtained. We present supplemental results for the circular solution of two unequal mass point-particles. Circular solutions for sele... |
gr-qc/0605005 | Yaneer Bar-Yam | Yaneer Bar-Yam | ZM theory III: Classical oscillators and semi-classical Bohr-Sommerfeld
quantization | 16 pages, 1 figure | null | null | NECSI Report 2006-04-01 | gr-qc | null | We consider the description of classical oscillatory motion in ZM theory, and
explore the relationship of ZM theory to semi-classical Bohr-Sommerfeld
quantization. The treatment illustrates some features of ZM theory, especially
the inadequacies of classical and semi-classical treatments due to
non-analyticity of the... | [
{
"created": "Sun, 30 Apr 2006 18:27:11 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Bar-Yam",
"Yaneer",
""
]
] | We consider the description of classical oscillatory motion in ZM theory, and explore the relationship of ZM theory to semi-classical Bohr-Sommerfeld quantization. The treatment illustrates some features of ZM theory, especially the inadequacies of classical and semi-classical treatments due to non-analyticity of the m... |
1103.4937 | Massimo Villata | M. Villata | CPT symmetry and antimatter gravity in general relativity | 6 pages, to be published in EPL (http://epljournal.edpsciences.org/) | EPL (Europhysics Letters) 94 (2011) 20001 | 10.1209/0295-5075/94/20001 | null | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The gravitational behavior of antimatter is still unknown. While we may be
confident that antimatter is self-attractive, the interaction between matter
and antimatter might be either attractive or repulsive. We investigate this
issue on theoretical grounds. Starting from the CPT invariance of physical
laws, we transf... | [
{
"created": "Fri, 25 Mar 2011 10:01:48 GMT",
"version": "v1"
}
] | 2011-11-21 | [
[
"Villata",
"M.",
""
]
] | The gravitational behavior of antimatter is still unknown. While we may be confident that antimatter is self-attractive, the interaction between matter and antimatter might be either attractive or repulsive. We investigate this issue on theoretical grounds. Starting from the CPT invariance of physical laws, we transfor... |
1006.4152 | Nikolai V. Mitskievich | Nikolai V. Mitskievich and H\'ector Vargas-Rodr\'iguez | Rotation and pseudo-rotation | 13 pages, no figures, contains parts of the PhD Thesis of H. Vargas
Rodr\'iguez | Gen.Rel.Grav.37:781,2005 | 10.1007/s10714-005-0062-7 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Eigenvectors of stress-energy tensor (the source in Einstein's equations)
form privileged bases in description of the corresponding space-times. When one
or more of these vector fields are rotating (the property well determined in
differential geometry), one says that the space-time executes this rotation.
Though the... | [
{
"created": "Mon, 21 Jun 2010 19:51:13 GMT",
"version": "v1"
}
] | 2015-05-19 | [
[
"Mitskievich",
"Nikolai V.",
""
],
[
"Vargas-Rodríguez",
"Héctor",
""
]
] | Eigenvectors of stress-energy tensor (the source in Einstein's equations) form privileged bases in description of the corresponding space-times. When one or more of these vector fields are rotating (the property well determined in differential geometry), one says that the space-time executes this rotation. Though the r... |
1307.2472 | Yurii Ignatyev | Yu.G. Ignat'ev | Cosmological evolution of the cosmological plasma with interpartial
scalar interaction. II. Formulation of mathematical model | 12 pages, 9 references | Russian Physics Journal Volume 55, Number 5 (2012), 550-560 | 10.1007/s11182-012-9847-9 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | On the basis of the relativistic kinetic theory the relativistic statistical
systems with scalar interaction particles are investigated. The self-consistent
system of the equations describing self-gravitating plasma with interpartial
scalar interaction is formulated, macroscopical laws of preservation are
received. T... | [
{
"created": "Tue, 9 Jul 2013 14:27:51 GMT",
"version": "v1"
}
] | 2013-07-10 | [
[
"Ignat'ev",
"Yu. G.",
""
]
] | On the basis of the relativistic kinetic theory the relativistic statistical systems with scalar interaction particles are investigated. The self-consistent system of the equations describing self-gravitating plasma with interpartial scalar interaction is formulated, macroscopical laws of preservation are received. The... |
gr-qc/0112032 | Finn Ravndal | Finn Ravndal and Mats Sundberg | Graviton-photon conversion on spin 0 and 1/2 particles | 13 pages, LaTeX with 5 figures | Int.J.Mod.Phys. A17 (2002) 3963-3974 | 10.1142/S0217751X02010881 | null | gr-qc hep-ph | null | The differential cross-sections for scattering of gravitons into photons on
bosons and fermions are calculated in linearized quantum gravity. They are
found to be strongly peaked in the forward direction and become constant at
high energies. Numerically, they are very small as expected for such
gravitational interact... | [
{
"created": "Sat, 15 Dec 2001 12:49:05 GMT",
"version": "v1"
}
] | 2009-11-07 | [
[
"Ravndal",
"Finn",
""
],
[
"Sundberg",
"Mats",
""
]
] | The differential cross-sections for scattering of gravitons into photons on bosons and fermions are calculated in linearized quantum gravity. They are found to be strongly peaked in the forward direction and become constant at high energies. Numerically, they are very small as expected for such gravitational interactio... |
2111.14218 | Ross Greenwood | Ross N Greenwood and Anthony Aguirre | How generic is eternal inflation? | 22 pages, 8 figures. This is a preprint of an article submitted for
review and possible inclusion in the Sci special issue "Interdisciplinary
Aspects of the Multiverse Concept" | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Everlasting inflation has far-reaching implications for cosmology and the
standing of self-localizing inferences made by observers, which have been
subjects of renewed interest in light of the growing acceptance of theory
landscapes and the attendant anthropic arguments. Under what assumptions and to
what extent does... | [
{
"created": "Sun, 28 Nov 2021 19:22:27 GMT",
"version": "v1"
},
{
"created": "Sun, 26 Dec 2021 17:46:44 GMT",
"version": "v2"
}
] | 2021-12-28 | [
[
"Greenwood",
"Ross N",
""
],
[
"Aguirre",
"Anthony",
""
]
] | Everlasting inflation has far-reaching implications for cosmology and the standing of self-localizing inferences made by observers, which have been subjects of renewed interest in light of the growing acceptance of theory landscapes and the attendant anthropic arguments. Under what assumptions and to what extent does i... |
0709.0015 | Guglielmo Fucci | Guglielmo Fucci and Ivan G. Avramidi | Noncommutative Einstein Equations | 17 Pages, LaTeX, reference added | Class.Quant.Grav.25:025005,2008 | 10.1088/0264-9381/25/2/025005 | null | gr-qc | null | We study a noncommutative deformation of general relativity where the
gravitational field is described by a matrix-valued symmetric two-tensor field.
The equations of motion are derived in the framework of this new theory by
varying a diffeomorphisms and gauge invariant action constructed by using a
matrix-valued sca... | [
{
"created": "Fri, 31 Aug 2007 21:20:45 GMT",
"version": "v1"
},
{
"created": "Tue, 4 Sep 2007 21:35:42 GMT",
"version": "v2"
}
] | 2011-02-17 | [
[
"Fucci",
"Guglielmo",
""
],
[
"Avramidi",
"Ivan G.",
""
]
] | We study a noncommutative deformation of general relativity where the gravitational field is described by a matrix-valued symmetric two-tensor field. The equations of motion are derived in the framework of this new theory by varying a diffeomorphisms and gauge invariant action constructed by using a matrix-valued scala... |
2007.09089 | Pietro Dona | Pietro Dona and Simone Speziale | Asymptotics of lowest unitary SL(2,C) invariants on graphs | 40 Pages + 5 Appendices. 11 Figures. v2: Refined presentation of the
general algorithm, additional minor amendments. v3: paragraph added in
section 5 about curved embeddings | Phys. Rev. D 102, 086016 (2020) | 10.1103/PhysRevD.102.086016 | null | gr-qc hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We describe a technique to study the asymptotics of SL(2,C) invariant tensors
associated to graphs, with unitary irreps and lowest SU(2) spins, and apply it
to the Lorentzian EPRL-KKL (Engle, Pereira, Rovelli, Livine; Kaminski,
Kieselowski, Lewandowski) model of quantum gravity. We reproduce the known
asymptotics of ... | [
{
"created": "Fri, 17 Jul 2020 16:09:40 GMT",
"version": "v1"
},
{
"created": "Mon, 12 Oct 2020 12:55:46 GMT",
"version": "v2"
},
{
"created": "Thu, 3 Jun 2021 15:09:09 GMT",
"version": "v3"
}
] | 2021-06-04 | [
[
"Dona",
"Pietro",
""
],
[
"Speziale",
"Simone",
""
]
] | We describe a technique to study the asymptotics of SL(2,C) invariant tensors associated to graphs, with unitary irreps and lowest SU(2) spins, and apply it to the Lorentzian EPRL-KKL (Engle, Pereira, Rovelli, Livine; Kaminski, Kieselowski, Lewandowski) model of quantum gravity. We reproduce the known asymptotics of th... |
2203.05699 | Vinod Bhardwaj Dr. | Anirudh Pradhan, Vinod Kumar Bhardwaj, Archana Dixit, Syamala
Krishnannair, | A new class of holographic dark energy models in LRS Bianchi Type-I | 19 pages, 15 figures | International Journal of Modern Physics A, Vol. 36, No. 36 (2021)
2150256 | 10.1142/S0217751X21502560 | null | gr-qc | http://creativecommons.org/licenses/by-sa/4.0/ | In this paper, we examine the (LRS) Bianchi-type-I cosmological model with
holographic dark energy. The exact solutions to the corresponding field
equations are obtained by using generalized hybrid expansion law (HEL). The EoS
parameter $\omega$ for DE is found to be time dependent and redshift dependent
and its exit... | [
{
"created": "Fri, 11 Mar 2022 01:13:25 GMT",
"version": "v1"
}
] | 2022-03-14 | [
[
"Pradhan",
"Anirudh",
""
],
[
"Bhardwaj",
"Vinod Kumar",
""
],
[
"Dixit",
"Archana",
""
],
[
"Krishnannair",
"Syamala",
""
]
] | In this paper, we examine the (LRS) Bianchi-type-I cosmological model with holographic dark energy. The exact solutions to the corresponding field equations are obtained by using generalized hybrid expansion law (HEL). The EoS parameter $\omega$ for DE is found to be time dependent and redshift dependent and its exitin... |
2203.08228 | Stefan Ballmer | Stefan W. Ballmer, Rana Adhikari, Leonardo Badurina, Duncan A. Brown,
Swapan Chattopadhyay, Matthew Evans, Peter Fritschel, Evan Hall, Jason M.
Hogan, Karan Jani, Tim Kovachy, Kevin Kuns, Ariel Schwartzman, Daniel Sigg,
Bram Slagmolen, Salvatore Vitale, Christopher Wipf | Snowmass2021 Cosmic Frontier White Paper: Future Gravitational-Wave
Detector Facilities | 31 pages, 5 figures, contribution to Snowmass 2021 | null | null | null | gr-qc astro-ph.IM hep-ex hep-th | http://creativecommons.org/licenses/by/4.0/ | The next generation of gravitational-wave observatories can explore a wide
range of fundamental physics phenomena throughout the history of the universe.
These phenomena include access to the universe's binary black hole population
throughout cosmic time, to the universe's expansion history independent of the
cosmic ... | [
{
"created": "Tue, 15 Mar 2022 20:02:30 GMT",
"version": "v1"
},
{
"created": "Tue, 29 Mar 2022 17:01:15 GMT",
"version": "v2"
}
] | 2022-03-30 | [
[
"Ballmer",
"Stefan W.",
""
],
[
"Adhikari",
"Rana",
""
],
[
"Badurina",
"Leonardo",
""
],
[
"Brown",
"Duncan A.",
""
],
[
"Chattopadhyay",
"Swapan",
""
],
[
"Evans",
"Matthew",
""
],
[
"Fritschel",
"Peter",
... | The next generation of gravitational-wave observatories can explore a wide range of fundamental physics phenomena throughout the history of the universe. These phenomena include access to the universe's binary black hole population throughout cosmic time, to the universe's expansion history independent of the cosmic di... |
0705.2994 | Z. Ya. Turakulov | Z. Ya. Turakulov | Non-relativistic limit of the Einstein equation | 8 pages | null | null | null | gr-qc | null | In particular cases of stationary and stationary axially symmetric space-time
passage to non-relativistic limit of Einstein equation is completed. For this
end the notions of absolute space and absolute time are introduced due to
stationarity of the space-time under consideration. In this construction
absolute time i... | [
{
"created": "Mon, 21 May 2007 14:54:50 GMT",
"version": "v1"
},
{
"created": "Wed, 23 May 2007 06:24:44 GMT",
"version": "v2"
},
{
"created": "Sat, 26 May 2007 08:48:30 GMT",
"version": "v3"
}
] | 2007-06-13 | [
[
"Turakulov",
"Z. Ya.",
""
]
] | In particular cases of stationary and stationary axially symmetric space-time passage to non-relativistic limit of Einstein equation is completed. For this end the notions of absolute space and absolute time are introduced due to stationarity of the space-time under consideration. In this construction absolute time is ... |
1502.01747 | Serguei Ossokine | Serguei Ossokine, Michael Boyle, Lawrence E. Kidder, Harald P.
Pfeiffer, Mark A.Scheel and B\'ela Szil\'agyi | Comparing Post-Newtonian and Numerical-Relativity Precession Dynamics | null | Phys. Rev. D 92, 104028 (2015) | 10.1103/PhysRevD.92.104028 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Binary black-hole systems are expected to be important sources of
gravitational waves for upcoming gravitational-wave detectors. If the spins are
not colinear with each other or with the orbital angular momentum, these
systems exhibit complicated precession dynamics that are imprinted on the
gravitational waveform. W... | [
{
"created": "Thu, 5 Feb 2015 22:19:37 GMT",
"version": "v1"
}
] | 2016-08-07 | [
[
"Ossokine",
"Serguei",
""
],
[
"Boyle",
"Michael",
""
],
[
"Kidder",
"Lawrence E.",
""
],
[
"Pfeiffer",
"Harald P.",
""
],
[
"Scheel",
"Mark A.",
""
],
[
"Szilágyi",
"Béla",
""
]
] | Binary black-hole systems are expected to be important sources of gravitational waves for upcoming gravitational-wave detectors. If the spins are not colinear with each other or with the orbital angular momentum, these systems exhibit complicated precession dynamics that are imprinted on the gravitational waveform. We ... |
0711.0313 | Alex Nielsen | Alex B. Nielsen | Black holes as local horizons | Talk presented at KPS meeting, 18th October, 2007, Jeju, Korea, 18
pages, 5 figures | null | null | null | gr-qc | null | This talk gives a brief introduction to black hole horizons and their role in
black hole thermodynamics. In particular a distinction is made between
quasi-locally defined horizons and event horizons. Currently some new
techniques have led to interesting developments and the field seems to be
growing in two distinct d... | [
{
"created": "Fri, 2 Nov 2007 14:02:31 GMT",
"version": "v1"
}
] | 2007-11-05 | [
[
"Nielsen",
"Alex B.",
""
]
] | This talk gives a brief introduction to black hole horizons and their role in black hole thermodynamics. In particular a distinction is made between quasi-locally defined horizons and event horizons. Currently some new techniques have led to interesting developments and the field seems to be growing in two distinct dir... |
1510.02858 | Marius Oltean | Marius Oltean, Richard J. Epp, Paul L. McGrath, Robert B. Mann | Geoids in General Relativity: Geoid Quasilocal Frames | 24 pages, 8 figures; v2: reference added; v3: introduction clarified,
reference added | Class.Quant.Grav.33:105001,2016 | 10.1088/0264-9381/33/10/105001 | null | gr-qc astro-ph.EP hep-th physics.geo-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We develop, in the context of general relativity, the notion of a geoid -- a
surface of constant "gravitational potential". In particular, we show how this
idea naturally emerges as a specific choice of a previously proposed, more
general and operationally useful construction called a quasilocal frame -- that
is, a c... | [
{
"created": "Sat, 10 Oct 2015 00:29:53 GMT",
"version": "v1"
},
{
"created": "Tue, 27 Oct 2015 11:52:23 GMT",
"version": "v2"
},
{
"created": "Mon, 30 Nov 2015 14:43:42 GMT",
"version": "v3"
}
] | 2016-06-10 | [
[
"Oltean",
"Marius",
""
],
[
"Epp",
"Richard J.",
""
],
[
"McGrath",
"Paul L.",
""
],
[
"Mann",
"Robert B.",
""
]
] | We develop, in the context of general relativity, the notion of a geoid -- a surface of constant "gravitational potential". In particular, we show how this idea naturally emerges as a specific choice of a previously proposed, more general and operationally useful construction called a quasilocal frame -- that is, a cho... |
1405.7667 | Dibyendu Panigrahi DP | D Panigrahi | Thermodynamical behaviour of the Variable Chaplygin gas | 10 pages, 4 figures | International Journal of Modern Physics D, Vol. 24, No. 05,
1550030 (2015) | 10.1142/S0218271815500303 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The thermodynamical behaviour of the Variable Chaplygin gas (VCG) model is
studied, using an equation of state like $P = - \frac{B}{\rho}$, where $B =
B_{0}V^{-\frac{n}{3}}$. Here $B_{0}$ is a positive universal constant, $n$ is
also a constant and $V$ is the volume of the fluid. From the consideration of
thermodynam... | [
{
"created": "Thu, 29 May 2014 19:21:20 GMT",
"version": "v1"
},
{
"created": "Sun, 8 Feb 2015 18:58:54 GMT",
"version": "v2"
}
] | 2017-02-14 | [
[
"Panigrahi",
"D",
""
]
] | The thermodynamical behaviour of the Variable Chaplygin gas (VCG) model is studied, using an equation of state like $P = - \frac{B}{\rho}$, where $B = B_{0}V^{-\frac{n}{3}}$. Here $B_{0}$ is a positive universal constant, $n$ is also a constant and $V$ is the volume of the fluid. From the consideration of thermodynamic... |
1209.2802 | Joan Sola | J. A. S. Lima, S. Basilakos, and Joan Sola | Expansion History with Decaying Vacuum: A Complete Cosmological Scenario | Accepted in MNRAS. Extended discussion, references added | null | 10.1093/mnras/stt220 | null | gr-qc astro-ph.CO hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We propose a novel cosmological scenario with the space-time emerging from a
pure initial de Sitter stage and subsequently evolving into the radiation,
matter and dark energy dominated epochs, thereby avoiding the initial
singularity and providing a complete description of the expansion history and a
natural solution... | [
{
"created": "Thu, 13 Sep 2012 07:38:57 GMT",
"version": "v1"
},
{
"created": "Tue, 5 Feb 2013 20:42:30 GMT",
"version": "v2"
}
] | 2015-06-11 | [
[
"Lima",
"J. A. S.",
""
],
[
"Basilakos",
"S.",
""
],
[
"Sola",
"Joan",
""
]
] | We propose a novel cosmological scenario with the space-time emerging from a pure initial de Sitter stage and subsequently evolving into the radiation, matter and dark energy dominated epochs, thereby avoiding the initial singularity and providing a complete description of the expansion history and a natural solution t... |
1510.07051 | Kai Schwenzer | Kostas D. Kokkotas and Kai Schwenzer | R-mode astronomy | 15 pages, 6 figures, to be published in the EPJA Topical Issue on
"Exotic Matter in Neutron Stars" | null | 10.1140/epja/i2016-16038-9 | null | gr-qc astro-ph.HE astro-ph.SR nucl-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Next generation gravitational wave detectors will start taking data in the
near future. Here we discuss the chances to detect the continuous emission from
r-mode oscillations in compact stars and study which properties of compact
stars we can infer from such novel data. In particular we show that the
combination of t... | [
{
"created": "Fri, 23 Oct 2015 20:19:54 GMT",
"version": "v1"
}
] | 2016-03-23 | [
[
"Kokkotas",
"Kostas D.",
""
],
[
"Schwenzer",
"Kai",
""
]
] | Next generation gravitational wave detectors will start taking data in the near future. Here we discuss the chances to detect the continuous emission from r-mode oscillations in compact stars and study which properties of compact stars we can infer from such novel data. In particular we show that the combination of the... |
gr-qc/0509122 | Eric Poisson | Adam Pound, Eric Poisson, and Bernhard G. Nickel | Limitations of the adiabatic approximation to the gravitational
self-force | 8 pages, 1 colour figure, final version to be published in Physical
Review D | Phys.Rev. D72 (2005) 124001 | 10.1103/PhysRevD.72.124001 | null | gr-qc | null | A small body moving in the field of a much larger black hole and subjected to
its own gravity moves on an accelerated world line in the background spacetime
of the large black hole. The acceleration is produced by the body's
gravitational self-force, which is constructed from the body's retarded
gravitational field. ... | [
{
"created": "Thu, 29 Sep 2005 19:48:40 GMT",
"version": "v1"
},
{
"created": "Mon, 28 Nov 2005 19:22:42 GMT",
"version": "v2"
}
] | 2009-11-11 | [
[
"Pound",
"Adam",
""
],
[
"Poisson",
"Eric",
""
],
[
"Nickel",
"Bernhard G.",
""
]
] | A small body moving in the field of a much larger black hole and subjected to its own gravity moves on an accelerated world line in the background spacetime of the large black hole. The acceleration is produced by the body's gravitational self-force, which is constructed from the body's retarded gravitational field. Th... |
gr-qc/0001003 | Piotr Chrusciel | Piotr T. Chru\'sciel, Erwann Delay, Gregory J. Galloway and Ralph
Howard | Regularity of Horizons and The Area Theorem | final version to appear in Annales Henri Poincare, various changes as
suggested by a referee, in particular a section on Krolak's area theorems
added | Annales Henri Poincare 2 (2001) 109-178 | null | null | gr-qc | null | We prove that the area of sections of future event horizons in space-times
satisfying the null energy condition is non-decreasing towards the future under
any one of the following circumstances: 1) the horizon is future geodesically
complete; 2) the horizon is a black hole event horizon in a globally hyperbolic
space... | [
{
"created": "Mon, 3 Jan 2000 17:55:04 GMT",
"version": "v1"
},
{
"created": "Mon, 13 Nov 2000 23:07:29 GMT",
"version": "v2"
}
] | 2007-05-23 | [
[
"Chruściel",
"Piotr T.",
""
],
[
"Delay",
"Erwann",
""
],
[
"Galloway",
"Gregory J.",
""
],
[
"Howard",
"Ralph",
""
]
] | We prove that the area of sections of future event horizons in space-times satisfying the null energy condition is non-decreasing towards the future under any one of the following circumstances: 1) the horizon is future geodesically complete; 2) the horizon is a black hole event horizon in a globally hyperbolic space-t... |
2311.11311 | Tomas Andrade | Tomas Andrade, Rossella Gamba, Juan Trenado | Actively Learning Numerical Relativity | 17 pages, 12 figures | null | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Data analysis of gravitational waves detected by the Ligo-Virgo-Kagra
collaboration and future observatories relies on precise modelling of the
sources. In order to build, calibrate and validate current models, we resort to
expensive simulations in Numerical Relativity (NR), the fully-fledged
simulation of Einstein's... | [
{
"created": "Sun, 19 Nov 2023 12:25:19 GMT",
"version": "v1"
},
{
"created": "Wed, 21 Feb 2024 08:39:28 GMT",
"version": "v2"
}
] | 2024-02-22 | [
[
"Andrade",
"Tomas",
""
],
[
"Gamba",
"Rossella",
""
],
[
"Trenado",
"Juan",
""
]
] | Data analysis of gravitational waves detected by the Ligo-Virgo-Kagra collaboration and future observatories relies on precise modelling of the sources. In order to build, calibrate and validate current models, we resort to expensive simulations in Numerical Relativity (NR), the fully-fledged simulation of Einstein's E... |
1407.2067 | Sasa Ilijic | Dubravko Horvat, Sasa Ilijic, Anamarija Kirin and Zoran Narancic | Nonminimally coupled scalar field in teleparallel gravity: boson stars | LaTeX, 14 pages, 3 figures, v3: some points clarified, refs added,
matches published version | Class. Quantum Grav. 32 (2015) 035023 | 10.1088/0264-9381/32/3/035023 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the nonminimally coupled complex scalar field within the framework
of teleparallel gravity. Coupling of the field nonminimally to the torsion
scalar destroys the Lorentz invariance of the theory in the sense that the
resulting equations of motion depend on the choice of a tetrad. For the assumed
static spher... | [
{
"created": "Tue, 8 Jul 2014 12:46:45 GMT",
"version": "v1"
},
{
"created": "Thu, 17 Jul 2014 13:40:16 GMT",
"version": "v2"
},
{
"created": "Tue, 17 Feb 2015 09:19:04 GMT",
"version": "v3"
}
] | 2015-02-18 | [
[
"Horvat",
"Dubravko",
""
],
[
"Ilijic",
"Sasa",
""
],
[
"Kirin",
"Anamarija",
""
],
[
"Narancic",
"Zoran",
""
]
] | We study the nonminimally coupled complex scalar field within the framework of teleparallel gravity. Coupling of the field nonminimally to the torsion scalar destroys the Lorentz invariance of the theory in the sense that the resulting equations of motion depend on the choice of a tetrad. For the assumed static spheric... |
1009.3749 | Azad Akhter Siddiqui Professor | M. Akbar and Azad A. Siddiqui | Charged Rotating BTZ Black Hole and Thermodynamic Behavior of Field
Equations at its Horizon | 12 pages, 3 figures | Phys.Lett.B656:217-220,2007 | 10.1016/j.physletb.2007.09.053 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper, we study different cases of the charged rotating BTZ black
hole with reference to their horizons. For the existence of these cases
conditions on mass, charge and angular momentum of the black hole are obtained.
It is also shown that the Einstein field equations for the charged rotating BTZ
black hole a... | [
{
"created": "Mon, 20 Sep 2010 09:50:31 GMT",
"version": "v1"
}
] | 2014-11-21 | [
[
"Akbar",
"M.",
""
],
[
"Siddiqui",
"Azad A.",
""
]
] | In this paper, we study different cases of the charged rotating BTZ black hole with reference to their horizons. For the existence of these cases conditions on mass, charge and angular momentum of the black hole are obtained. It is also shown that the Einstein field equations for the charged rotating BTZ black hole at ... |
1509.03624 | Masafumi Seriu | Masafumi Seriu | Influence of geometry variations on the gravitational focusing of
timelike geodesic congruences | To appear in Physical Review D | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We derive a set of equations describing the linear response of the
convergence properties of a geodesic congruence to arbitrary geometry
variations. It is a combination of equations describing the deviations from the
standard Raychaudhuri-type equations due to the geodesic shifts and an equation
describing the geodes... | [
{
"created": "Fri, 11 Sep 2015 19:52:52 GMT",
"version": "v1"
}
] | 2015-09-14 | [
[
"Seriu",
"Masafumi",
""
]
] | We derive a set of equations describing the linear response of the convergence properties of a geodesic congruence to arbitrary geometry variations. It is a combination of equations describing the deviations from the standard Raychaudhuri-type equations due to the geodesic shifts and an equation describing the geodesic... |
1602.04220 | John Lombard | John Lombard | Network Gravity | Preprint: [19 pages, 19 figures]; Submitted to Phys. Rev. D for
Publication; Changes: Updated formatting, explicitly defined projection map,
updated commentary on IR divergence | Phys. Rev. D 95, 024001 (2017) | 10.1103/PhysRevD.95.024001 | null | gr-qc cond-mat.dis-nn math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We introduce the construction of a new framework for probing discrete
emergent geometry and boundary-boundary observables based on a fundamentally
a-dimensional underlying network structure. Using a gravitationally motivated
action with Forman weighted combinatorial curvatures and simplicial volumes
relying on a deco... | [
{
"created": "Fri, 12 Feb 2016 21:00:01 GMT",
"version": "v1"
},
{
"created": "Fri, 8 Jul 2016 04:05:19 GMT",
"version": "v2"
}
] | 2017-01-11 | [
[
"Lombard",
"John",
""
]
] | We introduce the construction of a new framework for probing discrete emergent geometry and boundary-boundary observables based on a fundamentally a-dimensional underlying network structure. Using a gravitationally motivated action with Forman weighted combinatorial curvatures and simplicial volumes relying on a decomp... |
gr-qc/0403072 | Claudio Dappiaggi | Claudio Dappiaggi | Simplicial and asymptotical aspects of the holographic principle | PHD thesis, 130 pages, 15 figures used xy latex package | null | null | null | gr-qc hep-th math-ph math.MP | null | In this thesis, we study some aspects of a possible holographic
correspondence in two different systems: three dimensional Chern-Simons theory
and asymptotically flat space-times. In the former we use simplicial techniques
to study CS/WZW correspondence and in particular we construct the discretized
WZW partition fun... | [
{
"created": "Tue, 16 Mar 2004 16:20:57 GMT",
"version": "v1"
}
] | 2009-09-29 | [
[
"Dappiaggi",
"Claudio",
""
]
] | In this thesis, we study some aspects of a possible holographic correspondence in two different systems: three dimensional Chern-Simons theory and asymptotically flat space-times. In the former we use simplicial techniques to study CS/WZW correspondence and in particular we construct the discretized WZW partition funct... |
1704.03362 | Carlos Ruelas | Jer\'onimo Cortez, William Cuervo, Hugo A. Morales-T\'ecotl and Juan
C. Ruelas | On effective loop quantum geometry of Schwarzschild interior | 26 pages, matches the PRD published version | Phys.Rev. D95 (2017) no.6, 064041 | 10.1103/PhysRevD.95.064041 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The success of loop quantum cosmology to resolve classical singularities of
homogeneous models has led to its application to the classical Schwarszchild
black hole interior, which takes the form of a homogeneous Kantowski-Sachs
model. The first steps of this were done in pure quantum mechanical terms,
hinting at the ... | [
{
"created": "Tue, 11 Apr 2017 15:34:26 GMT",
"version": "v1"
}
] | 2017-04-19 | [
[
"Cortez",
"Jerónimo",
""
],
[
"Cuervo",
"William",
""
],
[
"Morales-Técotl",
"Hugo A.",
""
],
[
"Ruelas",
"Juan C.",
""
]
] | The success of loop quantum cosmology to resolve classical singularities of homogeneous models has led to its application to the classical Schwarszchild black hole interior, which takes the form of a homogeneous Kantowski-Sachs model. The first steps of this were done in pure quantum mechanical terms, hinting at the tr... |
2304.06187 | George Ruppeiner | George Ruppeiner, Alexandru-Mihail Sturzu | Black hole microstructures in the extremal limit | - Added some exposition to the end of sections 3 -Updated Image
Quality in Figures 3 and 4 -Minor typographical fixes | Physical Review D 108, 086004 (2023) | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The microstructure of black holes is a mystery. There is yet no resolution of
basic questions such as what the constituent particles are. We work here with
black hole thermodynamics (BHT), and the metric geometry of thermodynamics,
which connects to interparticle interactions via the invariant thermodynamic
Ricci sca... | [
{
"created": "Wed, 12 Apr 2023 23:13:01 GMT",
"version": "v1"
},
{
"created": "Tue, 30 May 2023 19:20:41 GMT",
"version": "v2"
}
] | 2023-12-12 | [
[
"Ruppeiner",
"George",
""
],
[
"Sturzu",
"Alexandru-Mihail",
""
]
] | The microstructure of black holes is a mystery. There is yet no resolution of basic questions such as what the constituent particles are. We work here with black hole thermodynamics (BHT), and the metric geometry of thermodynamics, which connects to interparticle interactions via the invariant thermodynamic Ricci scala... |
2312.02399 | Francesca Vidotto | Pietropaolo Frisoni, Francesco Gozzini, Francesca Vidotto | Primordial fluctuations from quantum gravity: 16-cell topological model | 17 pages | null | null | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | We present a numerical analysis of an Hartle-Hawking state for the early
universe, in the deep quantum regime, computed using the covariant Loop Quantum
Gravity formalism, in a truncation defined by 16-cell and in a simplified case
where the dynamics is defined by SU(2) BF theory. We compute mean geometry,
fluctuatio... | [
{
"created": "Mon, 4 Dec 2023 23:53:59 GMT",
"version": "v1"
}
] | 2023-12-06 | [
[
"Frisoni",
"Pietropaolo",
""
],
[
"Gozzini",
"Francesco",
""
],
[
"Vidotto",
"Francesca",
""
]
] | We present a numerical analysis of an Hartle-Hawking state for the early universe, in the deep quantum regime, computed using the covariant Loop Quantum Gravity formalism, in a truncation defined by 16-cell and in a simplified case where the dynamics is defined by SU(2) BF theory. We compute mean geometry, fluctuations... |
1109.3514 | Eduardo V. Correa Silva | G. A. Monerat, E. V. Corr\^ea Silva, C. Neves, G. Oliveira-Neto, L.G.
Rezende Rodrigues and M. Silva de Oliveira | Can noncommutativity affect the whole history of the Universe? | Substantially revised version of the manuscript. 12 pages, 8 figures.
PACS numbers: 04.20.Fy,04.40.Nr,11.10.Nx,98.80.Jk | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study a classical, noncommutative (NC), Friedmann-Robertson-Walker
cosmological model. The spatial sections may have positive, negative or zero
constant curvatures. The matter content is a generic perfect fluid. The initial
noncommutativity between some canonical variables is rewritten, such that, we
end up with c... | [
{
"created": "Fri, 16 Sep 2011 01:45:59 GMT",
"version": "v1"
},
{
"created": "Fri, 17 Jul 2015 19:04:46 GMT",
"version": "v2"
},
{
"created": "Thu, 11 Feb 2016 11:32:46 GMT",
"version": "v3"
}
] | 2016-02-12 | [
[
"Monerat",
"G. A.",
""
],
[
"Silva",
"E. V. Corrêa",
""
],
[
"Neves",
"C.",
""
],
[
"Oliveira-Neto",
"G.",
""
],
[
"Rodrigues",
"L. G. Rezende",
""
],
[
"de Oliveira",
"M. Silva",
""
]
] | We study a classical, noncommutative (NC), Friedmann-Robertson-Walker cosmological model. The spatial sections may have positive, negative or zero constant curvatures. The matter content is a generic perfect fluid. The initial noncommutativity between some canonical variables is rewritten, such that, we end up with com... |
2006.09652 | Lijing Shao | Xueli Miao, Junjie Zhao, Lijing Shao, Norbert Wex, Michael Kramer,
Bo-Qiang Ma | Tests of conservation laws in post-Newtonian gravity with binary pulsars | 14 pages, 5 figures, 4 tables; accepted by ApJ | ApJ 898 (2020) 69 | 10.3847/1538-4357/ab9dfe | null | gr-qc astro-ph.HE hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | General relativity is a fully conservative theory, but there exist other
possible metric theories of gravity. We consider non-conservative ones with a
parameterized post-Newtonian (PPN) parameter, $\zeta_2$. A non-zero $\zeta_2$
induces a self-acceleration for the center of mass of an eccentric binary
pulsar system, ... | [
{
"created": "Wed, 17 Jun 2020 04:34:22 GMT",
"version": "v1"
}
] | 2020-07-27 | [
[
"Miao",
"Xueli",
""
],
[
"Zhao",
"Junjie",
""
],
[
"Shao",
"Lijing",
""
],
[
"Wex",
"Norbert",
""
],
[
"Kramer",
"Michael",
""
],
[
"Ma",
"Bo-Qiang",
""
]
] | General relativity is a fully conservative theory, but there exist other possible metric theories of gravity. We consider non-conservative ones with a parameterized post-Newtonian (PPN) parameter, $\zeta_2$. A non-zero $\zeta_2$ induces a self-acceleration for the center of mass of an eccentric binary pulsar system, wh... |
gr-qc/0203024 | Gianluca Gemme | Ph. Bernard, A. Chincarini, G. Gemme, R. Parodi and E. Picasso | A detector of gravitational waves based on coupled microwave cavities | 29 pages, 12 eps figures. Typeset by REVTeX | null | null | INFN/TC-02/03 | gr-qc | null | Since 1978 superconducting coupled cavities have been proposed as sensitive
detector of gravitational waves. The interaction of the gravitational wave with
the cavity walls, and the resulting motion, induces the transition of some
electromagnetic energy from an initially excited cavity mode to an empty one.
The energ... | [
{
"created": "Thu, 7 Mar 2002 09:10:09 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Bernard",
"Ph.",
""
],
[
"Chincarini",
"A.",
""
],
[
"Gemme",
"G.",
""
],
[
"Parodi",
"R.",
""
],
[
"Picasso",
"E.",
""
]
] | Since 1978 superconducting coupled cavities have been proposed as sensitive detector of gravitational waves. The interaction of the gravitational wave with the cavity walls, and the resulting motion, induces the transition of some electromagnetic energy from an initially excited cavity mode to an empty one. The energy ... |
1308.2104 | Andrzej Okolow | Andrzej Okolow | Variables suitable for constructing quantum states for the Teleparallel
Equivalent of General Relativity II | 35 pages, LaTeX2e | Gen. Rel. Grav. 46:1638 (2014) | 10.1007/s10714-013-1638-2 | null | gr-qc hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present the second (and final) part of an analysis aimed at introducing
variables which are suitable for constructing a space of quantum states for the
Teleparallel Equivalent of General Relativity. In the first part of the
analysis we introduced a family of variables on the "position" sector of the
phase space. I... | [
{
"created": "Fri, 9 Aug 2013 12:17:18 GMT",
"version": "v1"
},
{
"created": "Mon, 14 Jul 2014 15:06:14 GMT",
"version": "v2"
}
] | 2014-07-15 | [
[
"Okolow",
"Andrzej",
""
]
] | We present the second (and final) part of an analysis aimed at introducing variables which are suitable for constructing a space of quantum states for the Teleparallel Equivalent of General Relativity. In the first part of the analysis we introduced a family of variables on the "position" sector of the phase space. In ... |
1705.09889 | Salvador Robles-Perez | Salvador J. Robles-Perez | Observational consequences of an interacting multiverse | 8 pages, 4 figures. Proceedings of the conference given in the
Varying Constants and Fundamental Cosmology meeting (VARCOSMOFUN-16) held in
Szczecin, Poland, 12-17th September 2016 | Universe 2017, 3(2), 49 | 10.3390/universe3020049 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The observability of the multiverse is at the very root of its physical
significance as a scientific proposal. In this conference we present, within
the third quantization formalism, an interacting scheme between the wave
functions of different universes and analyze the effects of some particular
values of the coupli... | [
{
"created": "Sun, 28 May 2017 05:14:54 GMT",
"version": "v1"
}
] | 2017-05-30 | [
[
"Robles-Perez",
"Salvador J.",
""
]
] | The observability of the multiverse is at the very root of its physical significance as a scientific proposal. In this conference we present, within the third quantization formalism, an interacting scheme between the wave functions of different universes and analyze the effects of some particular values of the coupling... |
1503.08725 | Thibaut Josset | Goffredo Chirco, Thibaut Josset, Carlo Rovelli | Statistical mechanics of reparametrization-invariant systems. It takes
three to tango | 9 pages, 2 figures | Class. Quantum Grav. 33 (2016) 045005 | 10.1088/0264-9381/33/4/045005 | null | gr-qc cond-mat.stat-mech hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | It is notoriously difficult to apply statistical mechanics to generally
covariant systems, because the notions of time, energy and equilibrium are
seriously modified in this context. We discuss the conditions under which
weaker versions of these notions can be defined, sufficient for statistical
mechanics. We focus o... | [
{
"created": "Mon, 30 Mar 2015 16:05:51 GMT",
"version": "v1"
},
{
"created": "Tue, 14 Jun 2016 16:14:37 GMT",
"version": "v2"
}
] | 2016-06-15 | [
[
"Chirco",
"Goffredo",
""
],
[
"Josset",
"Thibaut",
""
],
[
"Rovelli",
"Carlo",
""
]
] | It is notoriously difficult to apply statistical mechanics to generally covariant systems, because the notions of time, energy and equilibrium are seriously modified in this context. We discuss the conditions under which weaker versions of these notions can be defined, sufficient for statistical mechanics. We focus on ... |
2401.09542 | Susanna Barsanti | Matteo Della Rocca, Susanna Barsanti, Leonardo Gualtieri, Andrea
Maselli | Extreme mass-ratio inspirals as probes of scalar fields: inclined
circular orbits around Kerr black holes | 12 pages, 3 figures | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Extreme mass-ratio inspirals, a target source for the space-based
gravitational wave detector LISA, are a sensitive probe of fundamental scalar
fields coupled to gravity. We assess the capability of LISA to detect whether
the secondary compact object is endowed with a scalar field, in the case of
inclined orbits. We ... | [
{
"created": "Wed, 17 Jan 2024 19:00:06 GMT",
"version": "v1"
}
] | 2024-01-19 | [
[
"Della Rocca",
"Matteo",
""
],
[
"Barsanti",
"Susanna",
""
],
[
"Gualtieri",
"Leonardo",
""
],
[
"Maselli",
"Andrea",
""
]
] | Extreme mass-ratio inspirals, a target source for the space-based gravitational wave detector LISA, are a sensitive probe of fundamental scalar fields coupled to gravity. We assess the capability of LISA to detect whether the secondary compact object is endowed with a scalar field, in the case of inclined orbits. We sh... |
2006.05086 | Soumya Chakrabarti | Soumya Chakrabarti and Jackson Levi Said | Geodesic Congruences and a Collapsing Stellar Distribution in f (T )
Theories | 12 pages, 5 Figures, Accepted for Publication in Physical Review D | null | 10.1103/PhysRevD.101.124044 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Teleparallel Gravity (TG) describes gravitation as a torsional- rather than
curvature-based effect. As in curvature-based constructions of gravity, several
different formulations can be proposed, one of which is the Teleparallel
equivalent of General Relativity (TEGR) which is dynamically equivalent to GR.
In this wo... | [
{
"created": "Tue, 9 Jun 2020 07:26:25 GMT",
"version": "v1"
}
] | 2020-07-01 | [
[
"Chakrabarti",
"Soumya",
""
],
[
"Said",
"Jackson Levi",
""
]
] | Teleparallel Gravity (TG) describes gravitation as a torsional- rather than curvature-based effect. As in curvature-based constructions of gravity, several different formulations can be proposed, one of which is the Teleparallel equivalent of General Relativity (TEGR) which is dynamically equivalent to GR. In this work... |
2407.18536 | Sumanta Chakraborty | Sumanta Chakraborty, Sk Jahanur Hoque and Amitabh Virmani | On supertranslation invariant Lorentz charges | v1, 15 pages, no figures, for the special issue QG@RRI in Gen. Rel.
Grav | null | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In recent papers, Fuentealba, Henneaux, and Troessaert (FHT) gave definitions
for supertranslation invariant Lorentz charges in the ADM Hamiltonian formalism
and showed that their definitions match with the Chen, Wang, Yau (CWY)
definitions of Lorentz charges at null infinity which are free from
``supertranslation am... | [
{
"created": "Fri, 26 Jul 2024 06:34:34 GMT",
"version": "v1"
}
] | 2024-07-29 | [
[
"Chakraborty",
"Sumanta",
""
],
[
"Hoque",
"Sk Jahanur",
""
],
[
"Virmani",
"Amitabh",
""
]
] | In recent papers, Fuentealba, Henneaux, and Troessaert (FHT) gave definitions for supertranslation invariant Lorentz charges in the ADM Hamiltonian formalism and showed that their definitions match with the Chen, Wang, Yau (CWY) definitions of Lorentz charges at null infinity which are free from ``supertranslation ambi... |
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