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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
gr-qc/0310033 | Pantelis Apostolopoulos | Pantelis S. Apostolopoulos | On tilted perfect fluid Bianchi type VI$_0$ self-similar models | Latex, 7 pages, no figures; (v2) some clarification comments are
added in the discussion and one reference; (v3) minor corrections in
equations (1), (3) and (19) | Gen.Rel.Grav. 36 (2004) 1939-1945 | 10.1023/B:GERG.0000036051.44778.d8 | null | gr-qc | null | We show that the tilted perfect fluid Bianchi VI$_0$ family of self-similar
models found by Rosquist and Jantzen [K. Rosquist and R. T. Jantzen, \emph{%
Exact power law solutions of the Einstein equations}, 1985 Phys. Lett.
\textbf{107}A 29-32] is the most general class of tilted self-similar models
but the state par... | [
{
"created": "Mon, 6 Oct 2003 19:50:04 GMT",
"version": "v1"
},
{
"created": "Wed, 25 Feb 2004 10:09:32 GMT",
"version": "v2"
},
{
"created": "Wed, 25 Aug 2004 08:12:16 GMT",
"version": "v3"
}
] | 2009-11-10 | [
[
"Apostolopoulos",
"Pantelis S.",
""
]
] | We show that the tilted perfect fluid Bianchi VI$_0$ family of self-similar models found by Rosquist and Jantzen [K. Rosquist and R. T. Jantzen, \emph{% Exact power law solutions of the Einstein equations}, 1985 Phys. Lett. \textbf{107}A 29-32] is the most general class of tilted self-similar models but the state param... |
gr-qc/0107005 | Dr. Bikash Chandra Paul | Bikash Chandra Paul (North Bengal University) | Inflationary Cosmologies in an Anisotropic Brane World | 15 pages, no figures, LaTeX | Phys.Rev. D64 (2001) 124001 | 10.1103/PhysRevD.64.124001 | null | gr-qc | null | A new cosmological solution of the gravitational field equations in the
generalized Randall-Sundrum model for an anisotropic brane with Bianchi I
geometry and with perfect fluid as matter sources is presented. The matter is
described by a scalar field. The solution admits inflationary era and at a
later epoch the ani... | [
{
"created": "Mon, 2 Jul 2001 08:47:24 GMT",
"version": "v1"
}
] | 2009-11-07 | [
[
"Paul",
"Bikash Chandra",
"",
"North Bengal University"
]
] | A new cosmological solution of the gravitational field equations in the generalized Randall-Sundrum model for an anisotropic brane with Bianchi I geometry and with perfect fluid as matter sources is presented. The matter is described by a scalar field. The solution admits inflationary era and at a later epoch the aniso... |
2206.04943 | Klaas Landsman | Klaas Landsman | Reopening the Hole Argument | 25 pages, considerable revision | null | null | null | gr-qc math-ph math.MP physics.hist-ph | http://creativecommons.org/licenses/by-nc-nd/4.0/ | This expository paper relates the Hole Argument in general relativity (GR) to
the well-known theorem of Choquet-Bruhat and Geroch (1969) on the existence and
uniqueness of globally hyperbolic solutions to the Einstein field equations.
Like the Earman-Norton (1987) version of the Hole Argument (which is originally
due... | [
{
"created": "Fri, 10 Jun 2022 08:34:05 GMT",
"version": "v1"
},
{
"created": "Tue, 5 Sep 2023 07:36:16 GMT",
"version": "v2"
}
] | 2023-09-06 | [
[
"Landsman",
"Klaas",
""
]
] | This expository paper relates the Hole Argument in general relativity (GR) to the well-known theorem of Choquet-Bruhat and Geroch (1969) on the existence and uniqueness of globally hyperbolic solutions to the Einstein field equations. Like the Earman-Norton (1987) version of the Hole Argument (which is originally due t... |
2107.02788 | Mar\'ia Jos\'e Bustamante-Rosell | Mar\'ia Jos\'e Bustamante-Rosell, Joel Meyers, Noah Pearson, Cynthia
Trendafilova, Aaron Zimmerman | Gravitational Wave Timing Array | 18 pages, 6 figures, comments welcome. Matches version accepted for
publication in PhysRevD | Physical Review D, vol. 105, no. 4, 2022 | 10.1103/PhysRevD.105.044005 | null | gr-qc astro-ph.CO astro-ph.IM | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We describe the design of a gravitational wave timing array, a novel scheme
that can be used to search for low-frequency gravitational waves by monitoring
continuous gravitational waves at higher frequencies. We show that observations
of gravitational waves produced by Galactic binaries using a space-based
detector l... | [
{
"created": "Tue, 6 Jul 2021 17:57:07 GMT",
"version": "v1"
},
{
"created": "Thu, 21 Jul 2022 19:17:54 GMT",
"version": "v2"
}
] | 2022-07-25 | [
[
"Bustamante-Rosell",
"María José",
""
],
[
"Meyers",
"Joel",
""
],
[
"Pearson",
"Noah",
""
],
[
"Trendafilova",
"Cynthia",
""
],
[
"Zimmerman",
"Aaron",
""
]
] | We describe the design of a gravitational wave timing array, a novel scheme that can be used to search for low-frequency gravitational waves by monitoring continuous gravitational waves at higher frequencies. We show that observations of gravitational waves produced by Galactic binaries using a space-based detector lik... |
1612.02504 | Soichiro Isoyama | Ryuichi Fujita, Soichiro Isoyama, Alexandre Le Tiec, Hiroyuki Nakano,
Norichika Sago, Takahiro Tanaka | Hamiltonian Formulation of the Conservative Self-Force Dynamics in the
Kerr Geometry | 55 pages, 0 figures, matches the published version | Class. Quantum Grav. 34 134001 (2017) | 10.1088/1361-6382/aa7342 | KUNS-2648,YITP-16-122 | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We formulate a Hamiltonian description of the orbital motion of a point
particle in Kerr spacetime for generic (eccentric, inclined) orbits, which
accounts for the effects of the conservative part of the gravitational
self-force. This formulation relies on a description of the particle's motion
as geodesic in a certa... | [
{
"created": "Thu, 8 Dec 2016 01:11:13 GMT",
"version": "v1"
},
{
"created": "Thu, 8 Jun 2017 20:52:50 GMT",
"version": "v2"
}
] | 2017-06-12 | [
[
"Fujita",
"Ryuichi",
""
],
[
"Isoyama",
"Soichiro",
""
],
[
"Tiec",
"Alexandre Le",
""
],
[
"Nakano",
"Hiroyuki",
""
],
[
"Sago",
"Norichika",
""
],
[
"Tanaka",
"Takahiro",
""
]
] | We formulate a Hamiltonian description of the orbital motion of a point particle in Kerr spacetime for generic (eccentric, inclined) orbits, which accounts for the effects of the conservative part of the gravitational self-force. This formulation relies on a description of the particle's motion as geodesic in a certain... |
gr-qc/0410145 | Angelo Tartaglia | Angelo Tartaglia | Space Time Defects as a Source of Curvature and Torsion | Presentation at the Sixth Friedman seminar in Cargese 28/6-3/7/2004.
Submitted for the proceedings of the seminar to appear in the International
Journal of Modern Physics A | Int.J.Mod.Phys. A20 (2005) 2336-2340 | 10.1142/S0217751X05024596 | null | gr-qc | null | Space time is described as a continuum four-dimensional medium similar to
ordinary elastic continua. Exploiting the analogy internal stress states are
considered. The internal ''stress'' is originated by the presence of defects.
The defects are described according to the typical Volterra process. The case
of a point ... | [
{
"created": "Thu, 28 Oct 2004 20:59:28 GMT",
"version": "v1"
}
] | 2009-11-10 | [
[
"Tartaglia",
"Angelo",
""
]
] | Space time is described as a continuum four-dimensional medium similar to ordinary elastic continua. Exploiting the analogy internal stress states are considered. The internal ''stress'' is originated by the presence of defects. The defects are described according to the typical Volterra process. The case of a point de... |
gr-qc/0406038 | B. S. Sathyaprakash | Edward K. Porter (Cardiff and Paris) and B. S. Sathyaprakash (Cardiff) | Improved gravitational waveforms from spinning black hole binaries | 23 pages, 2 Tables and 18 Figures | Phys.Rev. D71 (2005) 024017 | 10.1103/PhysRevD.71.024017 | null | gr-qc | null | The standard post-Newtonian approximation to gravitational waveforms, called
T-approximants, from non-spinning black hole binaries are known not to be
sufficiently accurate close to the last stable orbit of the system. A new
approximation, called P-approximants, is believed to improve the accuracy of
the waveforms re... | [
{
"created": "Thu, 10 Jun 2004 02:39:35 GMT",
"version": "v1"
}
] | 2009-11-10 | [
[
"Porter",
"Edward K.",
"",
"Cardiff and Paris"
],
[
"Sathyaprakash",
"B. S.",
"",
"Cardiff"
]
] | The standard post-Newtonian approximation to gravitational waveforms, called T-approximants, from non-spinning black hole binaries are known not to be sufficiently accurate close to the last stable orbit of the system. A new approximation, called P-approximants, is believed to improve the accuracy of the waveforms rend... |
gr-qc/9211025 | Clifford M. Will | Lawrence E. Kidder and Clifford M. Will (Washington University, St.
Louis) and Alan G. Wiseman (Northwestern University, Evanston) | Spin effects in the inspiral of coalescing compact binaries | 12 pages | Phys.Rev.D47:4183-4187,1993 | 10.1103/PhysRevD.47.R4183 | WUGRAV-92-14 | gr-qc | null | We derive the contributions of spin-orbit and spin-spin coupling to the
gravitational radiation from coalescing binary systems of spinning compact
objects. We calculate spin effects in the symmetric, trace-free radiative
multipoles that determine the gravitational waveform, and the rate of energy
loss. Assuming a bal... | [
{
"created": "Thu, 19 Nov 1992 17:25:06 GMT",
"version": "v1"
}
] | 2010-01-06 | [
[
"Kidder",
"Lawrence E.",
"",
"Washington University, St.\n Louis"
],
[
"Will",
"Clifford M.",
"",
"Washington University, St.\n Louis"
],
[
"Wiseman",
"Alan G.",
"",
"Northwestern University, Evanston"
]
] | We derive the contributions of spin-orbit and spin-spin coupling to the gravitational radiation from coalescing binary systems of spinning compact objects. We calculate spin effects in the symmetric, trace-free radiative multipoles that determine the gravitational waveform, and the rate of energy loss. Assuming a balan... |
1204.2395 | Vasilis Oikonomou | V. K. Oikonomou | Hidden Supersymmetry in Dirac Fermion Quasinormal Modes of Black Holes | null | null | 10.1142/S0217751X13500577 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We connect the quasinormal modes corresponding to Dirac fermions in various
black holes backgrounds to an N=2 supersymmetric quantum mechanics algebra,
which can be constructed from the radial part of the fermionic solutions of the
Dirac equation. In the massless fermion case, the quasinormal modes are in
bijective c... | [
{
"created": "Wed, 11 Apr 2012 10:00:56 GMT",
"version": "v1"
},
{
"created": "Wed, 31 Jul 2013 12:06:26 GMT",
"version": "v2"
}
] | 2015-06-04 | [
[
"Oikonomou",
"V. K.",
""
]
] | We connect the quasinormal modes corresponding to Dirac fermions in various black holes backgrounds to an N=2 supersymmetric quantum mechanics algebra, which can be constructed from the radial part of the fermionic solutions of the Dirac equation. In the massless fermion case, the quasinormal modes are in bijective cor... |
2108.01050 | Belinda Cheeseboro | Belinda D. Cheeseboro and Paul T. Baker | Method for detecting highly-eccentric binaries with a gravitational wave
burst search | null | null | 10.1103/PhysRevD.104.104016 | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Detection of gravitational waves (GW) from highly eccentric binary black hole
(BBH) systems can provide insight into their dynamics and formation. To date,
all of the LIGO-Virgo BBH detections have been made using quasi-circular
templates in their initial discovery. However, recent studies have found some
of these sy... | [
{
"created": "Mon, 2 Aug 2021 17:15:20 GMT",
"version": "v1"
},
{
"created": "Fri, 24 Sep 2021 18:52:05 GMT",
"version": "v2"
}
] | 2021-11-17 | [
[
"Cheeseboro",
"Belinda D.",
""
],
[
"Baker",
"Paul T.",
""
]
] | Detection of gravitational waves (GW) from highly eccentric binary black hole (BBH) systems can provide insight into their dynamics and formation. To date, all of the LIGO-Virgo BBH detections have been made using quasi-circular templates in their initial discovery. However, recent studies have found some of these syst... |
1209.2815 | Thomas Sch\"onenbach | Thomas Sch\"onenbach, Gunther Caspar, Peter O. Hess, Thomas Boller,
Andreas M\"uller, Mirko Sch\"afer and Walter Greiner | Experimental tests of pseudo-complex General Relativity | submitted for publication to the Monthly Notices of the Royal
Astronomical Society | MNRAS (April 21, 2013) 430 (4): 2999-3009 | 10.1093/mnras/stt108 | null | gr-qc astro-ph.GA | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Based on previous publications exploring pseudo-complex General Relativity
(pc-GR) we present a selection of observable consequences of pc-GR and possible
ways to experimentally access them. Whenever possible we compare the results to
Einstein's GR and differences are worked out in detail. We propose experimental
tes... | [
{
"created": "Thu, 13 Sep 2012 08:35:16 GMT",
"version": "v1"
},
{
"created": "Fri, 14 Dec 2012 10:21:52 GMT",
"version": "v2"
}
] | 2013-04-26 | [
[
"Schönenbach",
"Thomas",
""
],
[
"Caspar",
"Gunther",
""
],
[
"Hess",
"Peter O.",
""
],
[
"Boller",
"Thomas",
""
],
[
"Müller",
"Andreas",
""
],
[
"Schäfer",
"Mirko",
""
],
[
"Greiner",
"Walter",
""
]
] | Based on previous publications exploring pseudo-complex General Relativity (pc-GR) we present a selection of observable consequences of pc-GR and possible ways to experimentally access them. Whenever possible we compare the results to Einstein's GR and differences are worked out in detail. We propose experimental tests... |
2311.05525 | I. V. Kanatchikov | Igor V. Kanatchikov and Valery A. Kholodnyi | The Milgromian acceleration and the cosmological constant from
precanonical quantum gravity | 10pp. Based on our presentations at MOND40 (St. Andrews, UK), XL WGMP
(Bialowieza, Poland), EREP 2023 (Bilbao, Spain), Dark Energy (Frascati,
Italy) and POTOR 9th (Krakow, Poland) in June-September 2023 | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We show that the Milgromian acceleration of MOND and the cosmological
constant can be understood and quantified as the effects of quantum
fluctuations of spin connection which are described by precanonical quantum
gravity put forward by one of us earlier. We also show that a MOND-like
modification of Newtonian dynami... | [
{
"created": "Thu, 9 Nov 2023 17:11:24 GMT",
"version": "v1"
}
] | 2023-11-10 | [
[
"Kanatchikov",
"Igor V.",
""
],
[
"Kholodnyi",
"Valery A.",
""
]
] | We show that the Milgromian acceleration of MOND and the cosmological constant can be understood and quantified as the effects of quantum fluctuations of spin connection which are described by precanonical quantum gravity put forward by one of us earlier. We also show that a MOND-like modification of Newtonian dynamics... |
2312.05438 | David Radice | Alireza Rashti and Maitraya Bhattacharyya and David Radice and Boris
Daszuta and William Cook and Sebastiano Bernuzzi | Adaptive mesh refinement in binary black holes simulations | 23 pages, 7 figures. Matches the version accepted on Classical and
Quantum Gravity | Class. Quantum Grav. 41 095001 (2024) | 10.1088/1361-6382/ad36a5 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We discuss refinement criteria for the Berger-Rigoutsos (block-based)
refinement algorithm in our numerical relativity code GR-Athena++ in the
context of binary black hole merger simulations. We compare three different
strategies: the "box-in-box" approach, the "sphere-in-sphere" approach and a
local criterion for re... | [
{
"created": "Sat, 9 Dec 2023 02:05:22 GMT",
"version": "v1"
},
{
"created": "Mon, 25 Mar 2024 16:54:16 GMT",
"version": "v2"
}
] | 2024-04-29 | [
[
"Rashti",
"Alireza",
""
],
[
"Bhattacharyya",
"Maitraya",
""
],
[
"Radice",
"David",
""
],
[
"Daszuta",
"Boris",
""
],
[
"Cook",
"William",
""
],
[
"Bernuzzi",
"Sebastiano",
""
]
] | We discuss refinement criteria for the Berger-Rigoutsos (block-based) refinement algorithm in our numerical relativity code GR-Athena++ in the context of binary black hole merger simulations. We compare three different strategies: the "box-in-box" approach, the "sphere-in-sphere" approach and a local criterion for refi... |
gr-qc/0410135 | Nathalie Deruelle | Nathalie Deruelle and Joseph Katz | On the mass of a Kerr-anti-de Sitter spacetime in D dimensions | minor changes; accepted by CQG | Class.Quant.Grav. 22 (2005) 421-424 | 10.1088/0264-9381/22/2/013 | null | gr-qc hep-th | null | We show how to compute the mass of a Kerr-anti-de Sitter spacetime with
respect to the anti-de Sitter background in any dimension, using a
superpotential which has been derived from standard Noether identities. The
calculation takes no account of the source of the curvature and confirms
results obtained for black hol... | [
{
"created": "Thu, 28 Oct 2004 01:12:26 GMT",
"version": "v1"
},
{
"created": "Mon, 29 Nov 2004 05:01:06 GMT",
"version": "v2"
}
] | 2009-11-10 | [
[
"Deruelle",
"Nathalie",
""
],
[
"Katz",
"Joseph",
""
]
] | We show how to compute the mass of a Kerr-anti-de Sitter spacetime with respect to the anti-de Sitter background in any dimension, using a superpotential which has been derived from standard Noether identities. The calculation takes no account of the source of the curvature and confirms results obtained for black holes... |
gr-qc/0609021 | D. Bar | D. Bar | Double-slit interference pattern from single-slit screen and its
gravitational analogues | 51 pages, 12 Figures five of them contain two subfigures and thus the
number of figures is 17, 1 Table. Some minor changes introduced, especially,
in the references | Int.J.Theor.Phys.46:2626-2657,2007 | 10.1007/s10773-007-9377-3 | null | gr-qc | null | The double slit experiment (DSE) is known as an important cornerstone in the
foundations of physical theories such as Quantum Mechanics and Special
Relativity. A large number of different variants of it were designed and
performed over the years. We perform and discuss here a new verion with the
somewhat unexpected r... | [
{
"created": "Thu, 7 Sep 2006 01:54:15 GMT",
"version": "v1"
},
{
"created": "Fri, 2 May 2008 21:18:51 GMT",
"version": "v2"
}
] | 2008-11-26 | [
[
"Bar",
"D.",
""
]
] | The double slit experiment (DSE) is known as an important cornerstone in the foundations of physical theories such as Quantum Mechanics and Special Relativity. A large number of different variants of it were designed and performed over the years. We perform and discuss here a new verion with the somewhat unexpected res... |
2312.12087 | F Shojai | Reza Saadati and Fatimah Shojai | Geodetic precession and shadow of quantum extended black holes | 9 pages | Class. Quantum Grav. 41 015032, 2024 | 10.1088/1361-6382/ad13c3 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the circular motion of massive and massless particles in a recently
proposed quantum-corrected Schwarzschild black hole in loop quantum gravity.
This solution is supposed to introduce small but non-zero quantum corrections
in the low curvature limit. In this paper, we confine our attention to the
shadow of t... | [
{
"created": "Tue, 19 Dec 2023 12:07:10 GMT",
"version": "v1"
}
] | 2023-12-20 | [
[
"Saadati",
"Reza",
""
],
[
"Shojai",
"Fatimah",
""
]
] | We study the circular motion of massive and massless particles in a recently proposed quantum-corrected Schwarzschild black hole in loop quantum gravity. This solution is supposed to introduce small but non-zero quantum corrections in the low curvature limit. In this paper, we confine our attention to the shadow of the... |
1601.06083 | Cosima Breu | Cosima Breu and Luciano Rezzolla | Maximum mass, moment of inertia and compactness of relativistic stars | v2 matches version published on MNRAS | null | 10.1093/mnras/stw575 | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A number of recent works have highlighted that it is possible to express the
properties of general-relativistic stellar equilibrium configurations in terms
of functions that do not depend on the specific equation of state employed to
describe matter at nuclear densities. These functions are normally referred to
as "u... | [
{
"created": "Fri, 22 Jan 2016 17:39:26 GMT",
"version": "v1"
},
{
"created": "Mon, 11 Apr 2016 19:42:35 GMT",
"version": "v2"
}
] | 2016-04-12 | [
[
"Breu",
"Cosima",
""
],
[
"Rezzolla",
"Luciano",
""
]
] | A number of recent works have highlighted that it is possible to express the properties of general-relativistic stellar equilibrium configurations in terms of functions that do not depend on the specific equation of state employed to describe matter at nuclear densities. These functions are normally referred to as "uni... |
gr-qc/9809017 | Nora Breton | Nora Breton (CINVESTAV--IPN), Alberto Garcia (CINVESTAV--IPN), Alfredo
Macias (UAM-Iztapalapa) and Gustavo Y\'a\~nez (CINVESTAV--IPN) | Class of colliding plane waves in terms of Jacobi functions | 25 pages, Latex, uses revtex macros | J.Math.Phys. 39 (1998) 6051-6065 | 10.1063/1.532627 | null | gr-qc | null | We present a general class of noncolinear colliding wave solutions of the
Einstein-Maxwell equations given in terms of fourth order polynomials, which in
turn can be expressed through Jacobi functions depending on generalized
advanced and retarded time coordinates. The solutions are characterized by six
free paramete... | [
{
"created": "Thu, 3 Sep 1998 18:34:08 GMT",
"version": "v1"
}
] | 2009-10-31 | [
[
"Breton",
"Nora",
"",
"CINVESTAV--IPN"
],
[
"Garcia",
"Alberto",
"",
"CINVESTAV--IPN"
],
[
"Macias",
"Alfredo",
"",
"UAM-Iztapalapa"
],
[
"Yáñez",
"Gustavo",
"",
"CINVESTAV--IPN"
]
] | We present a general class of noncolinear colliding wave solutions of the Einstein-Maxwell equations given in terms of fourth order polynomials, which in turn can be expressed through Jacobi functions depending on generalized advanced and retarded time coordinates. The solutions are characterized by six free parameters... |
gr-qc/9803065 | Gary Gibbons | G W Gibbons | Quantum Gravity/String/M-theory/ as we approach the 3rd Millennium | This is the text of my plenary lecture, aimed at a non-expert
audience, given at GR15, Pune, India, December 1997. 22 pages Latex file with
two figures and using crckapb.sty style file | null | null | null | gr-qc hep-th | null | I review some recent progress in String/M-theory
| [
{
"created": "Wed, 18 Mar 1998 16:07:54 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Gibbons",
"G W",
""
]
] | I review some recent progress in String/M-theory |
2307.06405 | Mohit Raj Sah Mr. | Mohit Raj Sah and Suvodip Mukherjee | Non-Stationary Astrophysical Stochastic Gravitational-Wave Background: A
New Probe to the High Redshift Population of Binary Black Holes | 14 pages, 13 figures. Accepted for publication in MNRAS | null | null | null | gr-qc astro-ph.CO astro-ph.HE | http://creativecommons.org/licenses/by-nc-nd/4.0/ | The astrophysical Stochastic Gravitational Wave Background (SGWB) originates
from the mergers of compact binary objects that are otherwise undetected as
individual events, along with other sources such as supernovae, magnetars, etc.
The individual GW signal is time-varying over a time scale that depends on the
chirp ... | [
{
"created": "Wed, 12 Jul 2023 18:41:52 GMT",
"version": "v1"
},
{
"created": "Tue, 31 Oct 2023 13:56:33 GMT",
"version": "v2"
}
] | 2023-11-01 | [
[
"Sah",
"Mohit Raj",
""
],
[
"Mukherjee",
"Suvodip",
""
]
] | The astrophysical Stochastic Gravitational Wave Background (SGWB) originates from the mergers of compact binary objects that are otherwise undetected as individual events, along with other sources such as supernovae, magnetars, etc. The individual GW signal is time-varying over a time scale that depends on the chirp ma... |
2105.06650 | Matt Visser | Aden Jowsey (Victoria University of Wellington) and Matt Visser
(Victoria University of Wellington) | Reconsidering maximum luminosity | 11 Pages. This essay was awarded an honourable mention in the 2021
Gravity Research Foundation essay contest | International Journal of Modern Physics D 30 # 14 (2021) 2142026 | 10.1142/S0218271821420268 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The suggestion that there is a maximum luminosity (maximum power) in nature
has a long and somewhat convoluted history. Though this idea is commonly
attributed to Freeman Dyson, he was actually much more circumspect in his
views. What is certainly true is that dimensional analysis shows that the speed
of light and Ne... | [
{
"created": "Fri, 14 May 2021 05:30:55 GMT",
"version": "v1"
}
] | 2022-01-11 | [
[
"Jowsey",
"Aden",
"",
"Victoria University of Wellington"
],
[
"Visser",
"Matt",
"",
"Victoria University of Wellington"
]
] | The suggestion that there is a maximum luminosity (maximum power) in nature has a long and somewhat convoluted history. Though this idea is commonly attributed to Freeman Dyson, he was actually much more circumspect in his views. What is certainly true is that dimensional analysis shows that the speed of light and Newt... |
0710.0277 | Guillermo A. Mena Marugan | Alejandro Corichi, Jeronimo Cortez, Guillermo A. Mena Marugan, Jose M.
Velhinho | Quantum Gowdy $T^3$ Model: Schrodinger Representation with Unitary
Dynamics | 21 pages, version accepted for publication in Physical Review D | Phys.Rev.D76:124031,2007 | 10.1103/PhysRevD.76.124031 | null | gr-qc | null | The linearly polarized Gowdy $T^3$ model is paradigmatic for studying
technical and conceptual issues in the quest for a quantum theory of gravity
since, after a suitable and almost complete gauge fixing, it becomes an exactly
soluble midisuperspace model. Recently, a new quantization of the model,
possessing desired... | [
{
"created": "Mon, 1 Oct 2007 12:30:06 GMT",
"version": "v1"
},
{
"created": "Fri, 16 Nov 2007 16:46:51 GMT",
"version": "v2"
}
] | 2008-11-26 | [
[
"Corichi",
"Alejandro",
""
],
[
"Cortez",
"Jeronimo",
""
],
[
"Marugan",
"Guillermo A. Mena",
""
],
[
"Velhinho",
"Jose M.",
""
]
] | The linearly polarized Gowdy $T^3$ model is paradigmatic for studying technical and conceptual issues in the quest for a quantum theory of gravity since, after a suitable and almost complete gauge fixing, it becomes an exactly soluble midisuperspace model. Recently, a new quantization of the model, possessing desired f... |
0906.5562 | Viqar Husain | Viqar Husain | Time, vacuum energy, and the cosmological constant | 5 pages. Honorable mention, Gravity Research Foundation Essay Awards
(2009) | Int.J.Mod.Phys.D18:2265-2268,2009 | 10.1142/S0218271809015928 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We describe a link between the cosmological constant problem and the problem
of time in quantum gravity. This arises by examining the relationship between
the cosmological constant and vacuum energy in light of non-perturbative
formulations of quantum gravity.
| [
{
"created": "Tue, 30 Jun 2009 15:21:58 GMT",
"version": "v1"
}
] | 2010-03-12 | [
[
"Husain",
"Viqar",
""
]
] | We describe a link between the cosmological constant problem and the problem of time in quantum gravity. This arises by examining the relationship between the cosmological constant and vacuum energy in light of non-perturbative formulations of quantum gravity. |
1402.6950 | Aur\'elien Hees | A. Hees, W. M. Folkner, R. A. Jacobson, R. S. Park | Constraints on MOND theory from radio tracking data of the Cassini
spacecraft | 9 pages, 7 figures, version accepted in Phys. Rev. D | Phys. Rev. D 89, 102002, 2014 | 10.1103/PhysRevD.89.102002 | null | gr-qc astro-ph.EP astro-ph.GA | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The MOdified Newtonian Dynamics (MOND) is an attempt to modify the
gravitation theory to solve the Dark Matter problem. This phenomenology is very
successful at the galactic level. The main effect produced by MOND in the Solar
System is called the External Field Effect parametrized by the parameter $Q_2$.
We have use... | [
{
"created": "Thu, 27 Feb 2014 16:06:20 GMT",
"version": "v1"
},
{
"created": "Tue, 29 Apr 2014 19:33:17 GMT",
"version": "v2"
}
] | 2014-05-14 | [
[
"Hees",
"A.",
""
],
[
"Folkner",
"W. M.",
""
],
[
"Jacobson",
"R. A.",
""
],
[
"Park",
"R. S.",
""
]
] | The MOdified Newtonian Dynamics (MOND) is an attempt to modify the gravitation theory to solve the Dark Matter problem. This phenomenology is very successful at the galactic level. The main effect produced by MOND in the Solar System is called the External Field Effect parametrized by the parameter $Q_2$. We have used ... |
2405.05750 | Hassan Firouzjahi | Hassan Firouzjahi | Quantum Fluctuations in the Interior of Black Holes and Backreactions | v2:minor revisions, matches journal version | null | null | null | gr-qc hep-th | http://creativecommons.org/licenses/by/4.0/ | We study the propagation of the quantum field perturbations in the interior
of the Schwarzschild black hole. The interior of the black hole is like an
anisotropic cosmological background which expands in one extended direction
while contracting in azimuthal directions. Solving the quantum mode functions
approximately... | [
{
"created": "Thu, 9 May 2024 13:14:42 GMT",
"version": "v1"
},
{
"created": "Thu, 27 Jun 2024 09:15:55 GMT",
"version": "v2"
}
] | 2024-06-28 | [
[
"Firouzjahi",
"Hassan",
""
]
] | We study the propagation of the quantum field perturbations in the interior of the Schwarzschild black hole. The interior of the black hole is like an anisotropic cosmological background which expands in one extended direction while contracting in azimuthal directions. Solving the quantum mode functions approximately, ... |
0906.4524 | Alejandro Perez | Lihui Liu, Merced Montesinos, Alejandro Perez | A topological limit of gravity admitting an SU(2) connection formulation | Appendix added where moldels leading to boundary degrees of freedom
are constructed. This version will appear in PRD. | Phys.Rev.D81:064033,2010 | 10.1103/PhysRevD.81.064033 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the Hamiltonian formulation of the generally covariant theory
defined by the Lagrangian 4-form L=e_I e_J F^{IJ}(\omega) where e^I is a tetrad
field and F^{IJ} is the curvature of a Lorentz connection \omega^{IJ}. This
theory can be thought of as the limit of the Holst action for gravity for the
Newton consta... | [
{
"created": "Wed, 24 Jun 2009 17:16:22 GMT",
"version": "v1"
},
{
"created": "Tue, 23 Mar 2010 17:34:42 GMT",
"version": "v2"
}
] | 2015-03-13 | [
[
"Liu",
"Lihui",
""
],
[
"Montesinos",
"Merced",
""
],
[
"Perez",
"Alejandro",
""
]
] | We study the Hamiltonian formulation of the generally covariant theory defined by the Lagrangian 4-form L=e_I e_J F^{IJ}(\omega) where e^I is a tetrad field and F^{IJ} is the curvature of a Lorentz connection \omega^{IJ}. This theory can be thought of as the limit of the Holst action for gravity for the Newton constant... |
1801.07724 | Christian Pfeifer | Norman G\"urlebeck and Christian Pfeifer | Observers' measurements in premetric electrodynamics I: Time and radar
length | 18 pages, updated to journal version, typos corrected, discussion
extended | Phys. Rev. D 97, 084043 (2018) | 10.1103/PhysRevD.97.084043 | null | gr-qc physics.class-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The description of an observer's measurement in general relativity and the
standard model of particle physics is closely related to the spacetime metric.
In order to understand and interpret measurements, which test the metric
structure of the spacetime, like the classical Michelson-Morley, Ives-Stilwell,
Kennedy-Tho... | [
{
"created": "Tue, 23 Jan 2018 19:00:08 GMT",
"version": "v1"
},
{
"created": "Thu, 26 Apr 2018 06:36:09 GMT",
"version": "v2"
}
] | 2018-04-27 | [
[
"Gürlebeck",
"Norman",
""
],
[
"Pfeifer",
"Christian",
""
]
] | The description of an observer's measurement in general relativity and the standard model of particle physics is closely related to the spacetime metric. In order to understand and interpret measurements, which test the metric structure of the spacetime, like the classical Michelson-Morley, Ives-Stilwell, Kennedy-Thorn... |
gr-qc/9902060 | Maurizio Gasperini | M. Gasperini | Inflation and initial conditions in the pre-big bang scenario | 4 pages, Latex, one figure. Many references added. The text has been
improved in many points. To appear in Phys. Rev. D | Phys.Rev. D61 (2000) 087301 | 10.1103/PhysRevD.61.087301 | BA-TH/99-332 | gr-qc hep-th | null | The pre-big bang scenario describes the evolution of the Universe from an
initial state approaching the flat, cold, empty, string perturbative vacuum.
The choice of such an initial state is suggested by the present state of our
Universe if we accept that the cosmological evolution is (at least partially)
duality-symm... | [
{
"created": "Fri, 19 Feb 1999 18:13:55 GMT",
"version": "v1"
},
{
"created": "Sat, 20 Feb 1999 14:57:05 GMT",
"version": "v2"
},
{
"created": "Wed, 3 Mar 1999 14:34:04 GMT",
"version": "v3"
},
{
"created": "Tue, 16 Nov 1999 18:43:48 GMT",
"version": "v4"
}
] | 2009-10-31 | [
[
"Gasperini",
"M.",
""
]
] | The pre-big bang scenario describes the evolution of the Universe from an initial state approaching the flat, cold, empty, string perturbative vacuum. The choice of such an initial state is suggested by the present state of our Universe if we accept that the cosmological evolution is (at least partially) duality-symmet... |
1701.00607 | Taketo Ariki | Taketo Ariki | Self-consistent hyperfluid | Some typos corrected | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Hyperfluid model is reconstructed on the basis of its action free from any
external constraints, regarding the hyperfluid as a self-consistent classical
field. Intrinsic hypermomentum is no more a given variable, but arises purely
from the diffeomorphism covariance of the dynamical field, which allows the
hypermoment... | [
{
"created": "Tue, 3 Jan 2017 09:14:19 GMT",
"version": "v1"
},
{
"created": "Sat, 7 Jan 2017 14:47:57 GMT",
"version": "v2"
},
{
"created": "Sat, 5 Aug 2017 06:13:49 GMT",
"version": "v3"
}
] | 2017-08-08 | [
[
"Ariki",
"Taketo",
""
]
] | Hyperfluid model is reconstructed on the basis of its action free from any external constraints, regarding the hyperfluid as a self-consistent classical field. Intrinsic hypermomentum is no more a given variable, but arises purely from the diffeomorphism covariance of the dynamical field, which allows the hypermomentum... |
gr-qc/9608024 | Bahman K. Darian | B. K. Darian and H. P. Kunzle | Axially Symmetric Bianchi I Yang-Mills Cosmology as a Dynamical System | 18 pages, 6 Postscript figures, uses amsmath,amssymb,epsfig,verbatim,
to appear in CQG | Class.Quant.Grav. 13 (1996) 2651 | 10.1088/0264-9381/13/10/005 | Alberta Thy 21-96 | gr-qc chao-dyn nlin.CD | null | We construct the most general form of axially symmetric SU(2)-Yang-Mills
fields in Bianchi cosmologies. The dynamical evolution of axially symmetric YM
fields in Bianchi I model is compared with the dynamical evolution of the
electromagnetic field in Bianchi I and the fully isotropic YM field in
Friedmann-Robertson-W... | [
{
"created": "Fri, 9 Aug 1996 20:21:14 GMT",
"version": "v1"
}
] | 2009-10-28 | [
[
"Darian",
"B. K.",
""
],
[
"Kunzle",
"H. P.",
""
]
] | We construct the most general form of axially symmetric SU(2)-Yang-Mills fields in Bianchi cosmologies. The dynamical evolution of axially symmetric YM fields in Bianchi I model is compared with the dynamical evolution of the electromagnetic field in Bianchi I and the fully isotropic YM field in Friedmann-Robertson-Wal... |
2405.09151 | Ran Li | Ran Li, Jin Wang | Thermodynamics and kinetics of state switching for the asymptotically
flat black hole in a cavity | null | null | null | null | gr-qc cond-mat.stat-mech hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We propose that the thermodynamics and the kinetics of state switching for
the asymptotically flat black hole enclosed by a cavity can be studied in terms
of the free energy landscape formalism. The generalized free energy for the
black hole enclosed by a cavity in the canonical ensemble is derived by using
the York'... | [
{
"created": "Wed, 15 May 2024 07:31:15 GMT",
"version": "v1"
}
] | 2024-05-16 | [
[
"Li",
"Ran",
""
],
[
"Wang",
"Jin",
""
]
] | We propose that the thermodynamics and the kinetics of state switching for the asymptotically flat black hole enclosed by a cavity can be studied in terms of the free energy landscape formalism. The generalized free energy for the black hole enclosed by a cavity in the canonical ensemble is derived by using the York's ... |
2206.11367 | Claus Gerhardt | Claus Gerhardt | A unified quantization of gravity and other fundamental forces of nature | 32 pages, v3: This is the published version. arXiv admin note: text
overlap with arXiv:1301.6101, arXiv:2104.08084 | Universe 8 (2022), no.8, 404 | 10.3390/universe8080404 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We quantize the interaction of gravity with Yang-Mills and spinor fields,
hence offering a quantum theory incorporating all four fundamental forces of
nature. Let us\ann{as} abbreviate the spatial Hamilton functions of the
Standard Model by $H_{SM}$ and the Hamilton function of gravity by $H_G$.
Working in a fiber bu... | [
{
"created": "Sat, 18 Jun 2022 16:18:25 GMT",
"version": "v1"
},
{
"created": "Sun, 26 Jun 2022 10:43:08 GMT",
"version": "v2"
},
{
"created": "Mon, 1 Aug 2022 16:55:38 GMT",
"version": "v3"
}
] | 2022-08-02 | [
[
"Gerhardt",
"Claus",
""
]
] | We quantize the interaction of gravity with Yang-Mills and spinor fields, hence offering a quantum theory incorporating all four fundamental forces of nature. Let us\ann{as} abbreviate the spatial Hamilton functions of the Standard Model by $H_{SM}$ and the Hamilton function of gravity by $H_G$. Working in a fiber bund... |
gr-qc/9809035 | Masahiro Hotta | Masahiro Hotta | Asymptotic Isometry and Two Dimensional Anti-de Sitter Gravity | 22 pages, No Figures | null | null | TU-553 | gr-qc | null | We analyze canonical asymptotic isometry of two dimensional AdS dilaton
gravity in detail.
| [
{
"created": "Wed, 9 Sep 1998 07:33:40 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Hotta",
"Masahiro",
""
]
] | We analyze canonical asymptotic isometry of two dimensional AdS dilaton gravity in detail. |
gr-qc/0402011 | Xinhe Meng | Xin-He Meng, Peng Wang (Nankai U.) | $R^2$ corrections to the cosmological dynamics of inflation in the
Palatini formulation | 11 pages, no figures. Accepted by Class.Quant.Grav.v2:References
added | Class.Quant.Grav. 21 (2004) 2029-2036 | 10.1088/0264-9381/21/8/008 | null | gr-qc | null | We investigate the corrections to the inflationary cosmological dynamics due
to a $R^2$ term in the Palatini formulation which may arise as quantum
corrections to the effective Lagrangian in early universe. We found that the
standard Friedmann equation will not be changed when the scalar field is in the
potential ene... | [
{
"created": "Tue, 3 Feb 2004 05:15:16 GMT",
"version": "v1"
},
{
"created": "Wed, 11 Feb 2004 04:39:34 GMT",
"version": "v2"
}
] | 2009-11-10 | [
[
"Meng",
"Xin-He",
"",
"Nankai U."
],
[
"Wang",
"Peng",
"",
"Nankai U."
]
] | We investigate the corrections to the inflationary cosmological dynamics due to a $R^2$ term in the Palatini formulation which may arise as quantum corrections to the effective Lagrangian in early universe. We found that the standard Friedmann equation will not be changed when the scalar field is in the potential energ... |
1309.5699 | Juhua Chen | Hai Huang, Juhua Chen, Yongjiu Wang | Distribution of Entropy of Bardeen Regular Black Hole with Corrected
State Density | 11 pages, 11 figures, 1 table. Int. J. Theor. Phys. 2013 | Int J Theor Phys (2014) 53:249 | 10.1007/s10773-013-1803-0 | null | gr-qc | http://creativecommons.org/licenses/by/3.0/ | We consider corrections to all orders in the Planck length on the quantum
state density, and calculate the statistical entropy of the scalar field on the
background of the Bardeen regular black hole numerically. We obtain the
distribution of entropy which is inside the horizon of black hole and the
contribution of th... | [
{
"created": "Mon, 23 Sep 2013 06:08:21 GMT",
"version": "v1"
}
] | 2014-08-28 | [
[
"Huang",
"Hai",
""
],
[
"Chen",
"Juhua",
""
],
[
"Wang",
"Yongjiu",
""
]
] | We consider corrections to all orders in the Planck length on the quantum state density, and calculate the statistical entropy of the scalar field on the background of the Bardeen regular black hole numerically. We obtain the distribution of entropy which is inside the horizon of black hole and the contribution of the ... |
gr-qc/0405132 | Lukas Saul | Lukas A. Saul | The Dynamic Space of General Relativity in Second Atomization | 17 pages, 0 figures. To appear in NovaPublishers "Progress in General
Relativity and Quantum Cosmology Research" | General Relativity Research Trends, Horizons in World Physics vol.
249. Albert Reimer, ed.; pp. 153-172, 2005 | null | null | gr-qc | null | The notion that the geometry of our space-time is not only a static
background but can be physically dynamic is well established in general
relativity. Geometry can be described as shaped by the presence of matter,
where such shaping manifests itself as gravitational force. We consider here
probabilistic or atomistic... | [
{
"created": "Wed, 26 May 2004 18:03:24 GMT",
"version": "v1"
},
{
"created": "Tue, 9 Aug 2005 19:36:13 GMT",
"version": "v2"
}
] | 2007-05-23 | [
[
"Saul",
"Lukas A.",
""
]
] | The notion that the geometry of our space-time is not only a static background but can be physically dynamic is well established in general relativity. Geometry can be described as shaped by the presence of matter, where such shaping manifests itself as gravitational force. We consider here probabilistic or atomistic m... |
gr-qc/9506052 | null | L.H. Ford and Thomas A. Roman | Averaged Energy Conditions and Evaporating Black Holes | Sections 2.1 and 2.2 have been revised and some erroneous statements
corrected. The main conclusions and the figures are unchanged. 27 pp, plain
Latex, 3 figures available upon request | Phys.Rev. D53 (1996) 1988-2000 | 10.1103/PhysRevD.53.1988 | MIT-CTP-2446 and TUTP 95-1 | gr-qc hep-th | null | In this paper the averaged weak (AWEC) and averaged null (ANEC) energy
conditions, together with uncertainty principle-type restrictions on negative
energy (``quantum inequalities''), are examined in the context of evaporating
black hole backgrounds in both two and four dimensions. In particular,
integrals over only ... | [
{
"created": "Fri, 23 Jun 1995 22:39:30 GMT",
"version": "v1"
},
{
"created": "Tue, 12 Dec 1995 02:35:37 GMT",
"version": "v2"
}
] | 2009-10-28 | [
[
"Ford",
"L. H.",
""
],
[
"Roman",
"Thomas A.",
""
]
] | In this paper the averaged weak (AWEC) and averaged null (ANEC) energy conditions, together with uncertainty principle-type restrictions on negative energy (``quantum inequalities''), are examined in the context of evaporating black hole backgrounds in both two and four dimensions. In particular, integrals over only ha... |
gr-qc/9904053 | Yasusada Nambu | Yasusada Nambu and Yoshiyuki Y. Yamaguchi | Renormalization of Long-wavelength Solution of Einstein Equation | 12 pages, 1 figure, typeset by REVTeX | Phys.Rev. D60 (1999) 104011 | 10.1103/PhysRevD.60.104011 | DPNU-99-09 | gr-qc astro-ph nlin.PS patt-sol | null | Using the renormalization group method, we improved the first order solution
of the long-wavelength expansion of the Einstein equation. By assuming that the
renormalization group transformation has the property of Lie group, we can
regularize the secular divergence caused by the spatial gradient terms and
absorb it t... | [
{
"created": "Wed, 21 Apr 1999 09:03:40 GMT",
"version": "v1"
}
] | 2009-10-31 | [
[
"Nambu",
"Yasusada",
""
],
[
"Yamaguchi",
"Yoshiyuki Y.",
""
]
] | Using the renormalization group method, we improved the first order solution of the long-wavelength expansion of the Einstein equation. By assuming that the renormalization group transformation has the property of Lie group, we can regularize the secular divergence caused by the spatial gradient terms and absorb it to ... |
1011.0843 | Valentin Gladush | Valentin D. Gladush and Marina V. Galadgyi | Some peculiarities of motion of neutral and charged test particles in
the field of a spherically symmetric charged object in General Relativity | 15 pages, 9 figures | Gen.Rel.Grav.43:1347-1363,2011 | 10.1007/s10714-010-1119-9 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We propose the method of investigation of radial motions for charged and
neutral test particles in the Reissner-Nordstr\"{o}m field by means of mass
potential. In this context we analyze special features of interaction of
charges and their motions in General Relativity and construct the radial motion
classification. ... | [
{
"created": "Wed, 3 Nov 2010 10:43:58 GMT",
"version": "v1"
}
] | 2011-04-22 | [
[
"Gladush",
"Valentin D.",
""
],
[
"Galadgyi",
"Marina V.",
""
]
] | We propose the method of investigation of radial motions for charged and neutral test particles in the Reissner-Nordstr\"{o}m field by means of mass potential. In this context we analyze special features of interaction of charges and their motions in General Relativity and construct the radial motion classification. Fo... |
1508.01052 | Ali Bleybel Dr. | Ali Bleybel and Abdallah Zaiour | A general theorem on temporal foliation of causal sets | null | Found Phys (2018) 48: 456 | 10.1007/s10701-018-0157-0 | null | gr-qc math.DG | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We show a general theorem of existence of temporal foliations in a general
causal set, under mild constraints. Then we study automorphisms of infinite
causal sets (which satisfy further requirements) and show that they fall under
one of two types:
1) Automorphims that induce automorphisms of spacelike hypersurfaces... | [
{
"created": "Wed, 5 Aug 2015 12:34:23 GMT",
"version": "v1"
},
{
"created": "Thu, 1 Oct 2020 14:47:06 GMT",
"version": "v2"
}
] | 2020-10-02 | [
[
"Bleybel",
"Ali",
""
],
[
"Zaiour",
"Abdallah",
""
]
] | We show a general theorem of existence of temporal foliations in a general causal set, under mild constraints. Then we study automorphisms of infinite causal sets (which satisfy further requirements) and show that they fall under one of two types: 1) Automorphims that induce automorphisms of spacelike hypersurfaces in ... |
gr-qc/0509019 | Slava G. Turyshev | Juergen Mueller, James G. Williams, Slava G. Turyshev, and Peter J.
Shelus | Potential Capabilities of Lunar Laser Ranging for Geodesy and Relativity | 7 pages, 7 figures, 2 tables. Talk given at `Dynamic Planet 2005:
Monitoring and Understanding a Dynamic Planet with Geodetic and Oceanographic
Tools,'' a Joint Assembly of International Associations: IAG, IAPSO and IABO,
Cairns, Australia, 22-26 August 2005 | "Dynamic Planet", P. Tregoning, C. Rizos (eds.), IAG Symposia
(Springer) 130, 903-909 (2006) | null | null | gr-qc | null | Lunar Laser Ranging (LLR), which has been carried out for more than 35 years,
is used to determine many parameters within the Earth-Moon system. This
includes coordinates of terrestrial ranging stations and that of lunar
retro-reflectors, as well as lunar orbit, gravity field, and its tidal
acceleration. LLR data ana... | [
{
"created": "Tue, 6 Sep 2005 19:09:54 GMT",
"version": "v1"
},
{
"created": "Sat, 3 Dec 2005 01:14:21 GMT",
"version": "v2"
}
] | 2009-09-29 | [
[
"Mueller",
"Juergen",
""
],
[
"Williams",
"James G.",
""
],
[
"Turyshev",
"Slava G.",
""
],
[
"Shelus",
"Peter J.",
""
]
] | Lunar Laser Ranging (LLR), which has been carried out for more than 35 years, is used to determine many parameters within the Earth-Moon system. This includes coordinates of terrestrial ranging stations and that of lunar retro-reflectors, as well as lunar orbit, gravity field, and its tidal acceleration. LLR data analy... |
gr-qc/0310079 | Hajime Sotani | Hajime Sotani, Kazunori Kohri and Tomohiro Harada | Restricting quark matter models by gravitational wave observation | To appear in Phys. Rev. D | Phys.Rev. D69 (2004) 084008 | 10.1103/PhysRevD.69.084008 | WU-AP/175/03, OU-TAP 220 | gr-qc astro-ph hep-ph | null | We consider the possibilities for obtaining information about the equation of
state for quark matter by using future direct observational data on
gravitational waves. We study the nonradial oscillations of both fluid and
spacetime modes of pure quark stars. If we observe the $f$ and the lowest
$w_{\rm II}$ modes from... | [
{
"created": "Thu, 16 Oct 2003 10:22:23 GMT",
"version": "v1"
},
{
"created": "Fri, 27 Feb 2004 14:09:24 GMT",
"version": "v2"
}
] | 2009-11-10 | [
[
"Sotani",
"Hajime",
""
],
[
"Kohri",
"Kazunori",
""
],
[
"Harada",
"Tomohiro",
""
]
] | We consider the possibilities for obtaining information about the equation of state for quark matter by using future direct observational data on gravitational waves. We study the nonradial oscillations of both fluid and spacetime modes of pure quark stars. If we observe the $f$ and the lowest $w_{\rm II}$ modes from q... |
gr-qc/9611047 | Osamu Iguchi | Osamu Iguchi and Hideki Ishihara | Onset of inflation in inhomogeneous cosmology | 22 pages including 12 eps figures, RevTex | Phys.Rev. D56 (1997) 3216-3224 | 10.1103/PhysRevD.56.3216 | TIT/HEP-326/COSMO-71 | gr-qc | null | We study how the initial inhomogeneities of the universe affect the onset of
inflation in the closed universe. We consider the model of a chaotic inflation
which is driven by a massive scalar field. In order to construct an
inhomogeneous universe model, we use the long wavelength approximation ( the
gradient expansio... | [
{
"created": "Wed, 20 Nov 1996 08:33:10 GMT",
"version": "v1"
}
] | 2009-10-28 | [
[
"Iguchi",
"Osamu",
""
],
[
"Ishihara",
"Hideki",
""
]
] | We study how the initial inhomogeneities of the universe affect the onset of inflation in the closed universe. We consider the model of a chaotic inflation which is driven by a massive scalar field. In order to construct an inhomogeneous universe model, we use the long wavelength approximation ( the gradient expansion ... |
2109.09466 | Ugur Camci | Ugur Camci | On Dark Matter As A Geometric Effect in the Galactic Halo | 11 pages, 2, tables, 2 figures; Matches published version in
Astrophysics and Space Science | Astrophys. Space. Sci.366, 91 (2021) | 10.1007/s10509-021-03997-5 | null | gr-qc | http://creativecommons.org/publicdomain/zero/1.0/ | We obtain more straightforwardly some features of dark matter distribution in
the halos of galaxies by considering the spherically symmetric space-time,
which satisfies the flat rotational curve condition, and the geometric equation
of state resulting from the modified gravity theory. In order to measure the
equation... | [
{
"created": "Fri, 17 Sep 2021 10:52:34 GMT",
"version": "v1"
}
] | 2021-09-21 | [
[
"Camci",
"Ugur",
""
]
] | We obtain more straightforwardly some features of dark matter distribution in the halos of galaxies by considering the spherically symmetric space-time, which satisfies the flat rotational curve condition, and the geometric equation of state resulting from the modified gravity theory. In order to measure the equation o... |
1301.4618 | Ken-Ichi Nakao | Ken-ichi Nakao, Masashi Kimura, Mandar Patil, Pankaj S. Joshi | Ultra-high energy collision with neither black hole nor naked
singularity | 27 pages, 1 figure. Equation (B36) in the 1st version of the
manuscript is incorrect, and thus we have corrected it. The result becomes
different from the original one, but the conclusion that the ultra-high
energy collision of particles is possible is unchanged | null | 10.1103/PhysRevD.87.104033 | OCU-PHYS-379, AP-GR-104, YITP-12-101 | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We explore the collision between two concentric spherical thin shells. The
inner shell is charged, whereas the outer one is either neutral or charged. In
the situation we consider, the charge of the inner shell is larger than its
gravitational mass, and the inside of it is empty and regular. Hence the domain
just out... | [
{
"created": "Sun, 20 Jan 2013 01:05:52 GMT",
"version": "v1"
},
{
"created": "Sat, 23 Mar 2013 23:16:31 GMT",
"version": "v2"
}
] | 2013-05-29 | [
[
"Nakao",
"Ken-ichi",
""
],
[
"Kimura",
"Masashi",
""
],
[
"Patil",
"Mandar",
""
],
[
"Joshi",
"Pankaj S.",
""
]
] | We explore the collision between two concentric spherical thin shells. The inner shell is charged, whereas the outer one is either neutral or charged. In the situation we consider, the charge of the inner shell is larger than its gravitational mass, and the inside of it is empty and regular. Hence the domain just outsi... |
0811.1446 | Diego Pavon | Diego Pavon and Anjan A. Sen | The Interaction Rate in Holographic Models of Dark Energy | 8 pages, 2 figures. Key words: cosmology, holography, late
accelerated expansion, dark energy. To appear in the Proceedings of the
Spanish Relativity Meeting held in Salamanca (Spain) in September 2008. Uses
AIP style | AIP Conf.Proc.1122:156-163,2009 | 10.1063/1.3141240 | null | gr-qc astro-ph hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Observational data from supernovae type Ia, baryon acoustic oscillations, gas
mass fraction in galaxy clusters, and the growth factor are used to reconstruct
the the interaction rate of the holographic dark energy model recently proposed
by Zimdahl and Pav\'{o}n [1] in the redshift interval $0 < z < 1.8$. It shows a
... | [
{
"created": "Mon, 10 Nov 2008 11:10:52 GMT",
"version": "v1"
}
] | 2011-07-19 | [
[
"Pavon",
"Diego",
""
],
[
"Sen",
"Anjan A.",
""
]
] | Observational data from supernovae type Ia, baryon acoustic oscillations, gas mass fraction in galaxy clusters, and the growth factor are used to reconstruct the the interaction rate of the holographic dark energy model recently proposed by Zimdahl and Pav\'{o}n [1] in the redshift interval $0 < z < 1.8$. It shows a re... |
1902.00400 | Alex Giacomini | Fabrizio Canfora, Nikolaos Dimakis, Alex Giacomini, Andronikos
Paliathanasis | Bianchi IX cosmologies in the Einstein-Skyrme system in a sector with
non-trivial topological charge | LaTeX, 31 pages. Accepted for publication in Physical Review D | Phys. Rev. D 99, 044035 (2019) | 10.1103/PhysRevD.99.044035 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The dynamics of the most general Bianchi IX cosmology with three time
dependent scale factors for the Einstein-Skyrme system is analyzed. For the
Skyrmion, a generalized hedgehog ansatz with unit baryon charge is introduced.
The most remarkable feature of this ansatz is that, in the above topologically
non-trivial se... | [
{
"created": "Fri, 1 Feb 2019 15:25:44 GMT",
"version": "v1"
}
] | 2019-03-06 | [
[
"Canfora",
"Fabrizio",
""
],
[
"Dimakis",
"Nikolaos",
""
],
[
"Giacomini",
"Alex",
""
],
[
"Paliathanasis",
"Andronikos",
""
]
] | The dynamics of the most general Bianchi IX cosmology with three time dependent scale factors for the Einstein-Skyrme system is analyzed. For the Skyrmion, a generalized hedgehog ansatz with unit baryon charge is introduced. The most remarkable feature of this ansatz is that, in the above topologically non-trivial sect... |
1501.00107 | Ilya Kirnos Vasilyevich | Ilya V. Kirnos | Some Cosmological Solutions in an Arbitrary Order of Lovelock Gravity | 5 pages | Gravitation and Cosmology, 2012, Vol. 18, No. 4, pp. 259-261 | 10.1134/S0202289312040068 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider the Lovelock theory of gravity that assumes a nonlinearity of the
field equations in the second-order derivatives of the metric. We prove the
opportunity of obtaining cosmological solutions without isotropization in the
presence of matter in the form of a perfect fluid, which is necessary for
invisibility... | [
{
"created": "Wed, 31 Dec 2014 10:49:19 GMT",
"version": "v1"
}
] | 2015-01-05 | [
[
"Kirnos",
"Ilya V.",
""
]
] | We consider the Lovelock theory of gravity that assumes a nonlinearity of the field equations in the second-order derivatives of the metric. We prove the opportunity of obtaining cosmological solutions without isotropization in the presence of matter in the form of a perfect fluid, which is necessary for invisibility o... |
2009.05016 | Carlo Rovelli | Fabio D'Ambrosio, Marios Christodoulou, Pierre Martin-Dussaud, Carlo
Rovelli, Farshid Soltani | The End of a Black Hole's Evaporation -- Part I | 11 pages, 10 figures | Phys. Rev. D 103, 106014 (2021) | 10.1103/PhysRevD.103.106014 | null | gr-qc | http://creativecommons.org/licenses/by-nc-sa/4.0/ | At the end of Hawking evaporation, the horizon of a black hole enters a
physical region where quantum gravity cannot be neglected. The physics of this
region has not been much explored. We characterise its physics and introduce a
technique to study it.
| [
{
"created": "Thu, 10 Sep 2020 17:31:16 GMT",
"version": "v1"
},
{
"created": "Fri, 5 Feb 2021 21:38:04 GMT",
"version": "v2"
}
] | 2021-05-19 | [
[
"D'Ambrosio",
"Fabio",
""
],
[
"Christodoulou",
"Marios",
""
],
[
"Martin-Dussaud",
"Pierre",
""
],
[
"Rovelli",
"Carlo",
""
],
[
"Soltani",
"Farshid",
""
]
] | At the end of Hawking evaporation, the horizon of a black hole enters a physical region where quantum gravity cannot be neglected. The physics of this region has not been much explored. We characterise its physics and introduce a technique to study it. |
gr-qc/0512067 | J. Ponce de Leon | J. Ponce de Leon | Extra symmetry in the field equations in 5D with spatial spherical
symmetry | Typos corrected. Accepted for publication in Classical and Quantum
Gravity | Class.Quant.Grav.23:3043-3052,2006 | 10.1088/0264-9381/23/9/017 | null | gr-qc | null | We point out that the field equations in 5D, with spatial spherical symmetry,
possess an extra symmetry that leaves them invariant. This symmetry corresponds
to certain simultaneous interchange of coordinates and metric coefficients. As
a consequence a single solution in 5D can generate very different scenarios in
4D... | [
{
"created": "Mon, 12 Dec 2005 07:15:04 GMT",
"version": "v1"
},
{
"created": "Fri, 3 Mar 2006 15:48:27 GMT",
"version": "v2"
}
] | 2014-11-17 | [
[
"de Leon",
"J. Ponce",
""
]
] | We point out that the field equations in 5D, with spatial spherical symmetry, possess an extra symmetry that leaves them invariant. This symmetry corresponds to certain simultaneous interchange of coordinates and metric coefficients. As a consequence a single solution in 5D can generate very different scenarios in 4D, ... |
2210.07257 | Parampreet Singh | A. Meenakshi McNamara, Sahil Saini, Parampreet Singh | On a novel relationship between shear and energy density at the bounce
in non-singular Bianchi-I spacetimes | 24 pages, 12 figures. A figure added to discuss cigar like approach
in ekpyrotic model. Published version in Phys. Rev. D | null | null | null | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In classical Bianchi-I spacetimes, underlying conditions for what dictates
the singularity structure - whether it is anisotropic shear or energy density,
can be easily determined from the generalized Friedmann equation. However, in
non-singular bouncing anisotropic models these insights are difficult to obtain
in the... | [
{
"created": "Thu, 13 Oct 2022 18:00:06 GMT",
"version": "v1"
},
{
"created": "Tue, 27 Dec 2022 12:02:56 GMT",
"version": "v2"
}
] | 2022-12-29 | [
[
"McNamara",
"A. Meenakshi",
""
],
[
"Saini",
"Sahil",
""
],
[
"Singh",
"Parampreet",
""
]
] | In classical Bianchi-I spacetimes, underlying conditions for what dictates the singularity structure - whether it is anisotropic shear or energy density, can be easily determined from the generalized Friedmann equation. However, in non-singular bouncing anisotropic models these insights are difficult to obtain in the q... |
0710.0301 | Jose Geraldo Pereira | H. I. Arcos and J. G. Pereira | Spacetime: Arena or Reality? | Chapter in the book "Relativity and the Dimensionality of the World",
Springer series "Fundamental Theories of Physics", Vol. 153 (2007). Volume
Editor: Vesselin Petkov | null | 10.1007/978-1-4020-6318-3_12 | null | gr-qc hep-th | null | For small values of the mass (in relation to the angular momentum and
electric charge), the Kerr-Newman (KN) solution of Einstein equation reduces to
a naked singularity of circular shape. By considering the Hawking and Ellis
extended interpretation of the KN spacetime, as well as Wheeler's idea of
"charge without ch... | [
{
"created": "Mon, 1 Oct 2007 14:01:09 GMT",
"version": "v1"
}
] | 2015-05-13 | [
[
"Arcos",
"H. I.",
""
],
[
"Pereira",
"J. G.",
""
]
] | For small values of the mass (in relation to the angular momentum and electric charge), the Kerr-Newman (KN) solution of Einstein equation reduces to a naked singularity of circular shape. By considering the Hawking and Ellis extended interpretation of the KN spacetime, as well as Wheeler's idea of "charge without char... |
2406.00579 | Jieci Wang | Wentao Liu, Di Wu, Xiongjun Fang, Jiliang Jing, Jieci Wang | Kerr-MOG-(A)dS black hole and its shadow in scalar-tensor-vector gravity
theory | 13 pages, 32 figures | null | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The scalar-tensor-vector gravity (STVG) theory has attracted significant
interest due to its ability to effectively address the issue of galaxy rotation
curves and clusters of galaxies without considering the influence of dark
matter. In this paper, we construct rotating black hole solutions with a
cosmological const... | [
{
"created": "Sun, 2 Jun 2024 00:05:35 GMT",
"version": "v1"
},
{
"created": "Thu, 6 Jun 2024 08:03:27 GMT",
"version": "v2"
},
{
"created": "Thu, 18 Jul 2024 11:43:28 GMT",
"version": "v3"
}
] | 2024-07-19 | [
[
"Liu",
"Wentao",
""
],
[
"Wu",
"Di",
""
],
[
"Fang",
"Xiongjun",
""
],
[
"Jing",
"Jiliang",
""
],
[
"Wang",
"Jieci",
""
]
] | The scalar-tensor-vector gravity (STVG) theory has attracted significant interest due to its ability to effectively address the issue of galaxy rotation curves and clusters of galaxies without considering the influence of dark matter. In this paper, we construct rotating black hole solutions with a cosmological constan... |
gr-qc/0504085 | Clifford M. Will | Clifford M. Will | Special Relativity: A Centenary Perspective | 24 pages, 4 figures, to be published in the proceedings of the 2005
Seminaire Poincare held in Paris, 09 April 2005 | Einstein, 1905-2005: Poincare Seminar 2005, ed. T. Damour, O.
Darrigol, B. Duplantier and V. Rivasseau (Birkhauser, Basel 2006), pp. 33-58 | 10.1007/3-7643-7436-5_2 | null | gr-qc | null | This article is a partly pedagogical, partly historical and partly technical
review of special relativity and its experimental foundations, in honor of the
centenary of Einstein's annus mirabilis.
| [
{
"created": "Tue, 19 Apr 2005 16:10:03 GMT",
"version": "v1"
}
] | 2015-06-25 | [
[
"Will",
"Clifford M.",
""
]
] | This article is a partly pedagogical, partly historical and partly technical review of special relativity and its experimental foundations, in honor of the centenary of Einstein's annus mirabilis. |
0907.2788 | Vincenzo Branchina | Vincenzo Branchina, Marco Di Liberto, Ivano Lodato | Dark energy and Josephson junctions | 9 pages, no figures | JCAP 0908:011,2009 | 10.1088/1475-7516/2009/08/011 | null | gr-qc astro-ph.CO hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | It has been recently claimed that dark energy can be (and has been) observed
in laboratory experiments by measuring the power spectrum $S_I(\omega)$ of the
noise current in a resistively shunted Josephson junction and that in new
dedicated experiments, which will soon test a higher frequency range,
$S_I(\omega)$ shou... | [
{
"created": "Thu, 16 Jul 2009 09:09:21 GMT",
"version": "v1"
}
] | 2009-09-01 | [
[
"Branchina",
"Vincenzo",
""
],
[
"Di Liberto",
"Marco",
""
],
[
"Lodato",
"Ivano",
""
]
] | It has been recently claimed that dark energy can be (and has been) observed in laboratory experiments by measuring the power spectrum $S_I(\omega)$ of the noise current in a resistively shunted Josephson junction and that in new dedicated experiments, which will soon test a higher frequency range, $S_I(\omega)$ should... |
gr-qc/0212085 | Joan Ferrando | J.J. Ferrando (U. de Val\`encia), J.A. S\'aez (U. de Val\`encia) | A Rainich-like approach to the Killing-Yano tensors | 19 pages, 0 figures | Gen. Rel. Grav. 35 (2002) 1191 | 10.1023/A:1024493607191 | null | gr-qc | null | The Rainich problem for the Killing-Yano tensors posed by Collinson
\cite{col} is solved. In intermediate steps, we first obtain the necessary and
sufficient conditions for a 2+2 almost-product structure to determine the
principal 2--planes of a skew-symmetric Killing-Yano tensor and then we give
the additional condi... | [
{
"created": "Fri, 20 Dec 2002 14:44:30 GMT",
"version": "v1"
},
{
"created": "Fri, 17 Jan 2003 18:06:11 GMT",
"version": "v2"
}
] | 2015-06-25 | [
[
"Ferrando",
"J. J.",
"",
"U. de València"
],
[
"Sáez",
"J. A.",
"",
"U. de València"
]
] | The Rainich problem for the Killing-Yano tensors posed by Collinson \cite{col} is solved. In intermediate steps, we first obtain the necessary and sufficient conditions for a 2+2 almost-product structure to determine the principal 2--planes of a skew-symmetric Killing-Yano tensor and then we give the additional conditi... |
1001.4053 | Vladimir Ivashchuk | V. D. Ivashchuk | On analogues of black brane solutions in the model with multicomponent
anisotropic fluid | 8 pages, Latex, references and several equations and examples are
added, typos are eliminated | Phys.Lett.B693:399-403,2010 | 10.1016/j.physletb.2010.08.060 | IGC-PFUR/22-01-10 | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A family of spherically symmetric solutions with horizon in the model with
m-component anisotropic fluid is presented. The metrics are defined on a
manifold that contains a product of n-1 Ricci-flat "internal" spaces. The
equation of state for any s-th component is defined by a vector U^s belonging
to R^{n + 1}. The ... | [
{
"created": "Fri, 22 Jan 2010 18:07:19 GMT",
"version": "v1"
},
{
"created": "Thu, 22 Apr 2010 11:14:28 GMT",
"version": "v2"
}
] | 2011-04-20 | [
[
"Ivashchuk",
"V. D.",
""
]
] | A family of spherically symmetric solutions with horizon in the model with m-component anisotropic fluid is presented. The metrics are defined on a manifold that contains a product of n-1 Ricci-flat "internal" spaces. The equation of state for any s-th component is defined by a vector U^s belonging to R^{n + 1}. The so... |
2309.15439 | Stefano Viaggiu | Stefano Viaggiu | A new class of anisotropic rotating fluids and some throat-like sources
for Kerr metric as examples | Version published on IJMPD, references 34 and 46 corrected | Internation Journal of Modern Physics D, Vol. 32 No 03, 2350008
(2023) | 10.1142/S0218271823500086 | null | gr-qc astro-ph.SR hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Motivated by the increasing interest in finding physically viable rotating
sources, we present a new class of anisotropic rotating solutions. The
energy-momentum tensor compatible with the metric is composed of anisotropic
matter with a non-vanishing energy flow around the symmetry axis and vanishing
viscosity. The n... | [
{
"created": "Wed, 27 Sep 2023 06:59:50 GMT",
"version": "v1"
},
{
"created": "Sun, 8 Oct 2023 19:11:22 GMT",
"version": "v2"
}
] | 2023-10-10 | [
[
"Viaggiu",
"Stefano",
""
]
] | Motivated by the increasing interest in finding physically viable rotating sources, we present a new class of anisotropic rotating solutions. The energy-momentum tensor compatible with the metric is composed of anisotropic matter with a non-vanishing energy flow around the symmetry axis and vanishing viscosity. The new... |
2407.19363 | Bruno Alexandre | Bruno Alexandre | Higgs Mechanism for the Ashtekar Self-Dual Connection | 6 pages | null | null | null | gr-qc | http://creativecommons.org/licenses/by-nc-nd/4.0/ | We introduce the Higgs mechanism for the self-dual spin connection (also
known as the Ashtekar connection), using the Pleba\'{n}ski formulation of
gravity. We develop our formalism within the framework of the chiral action and
derive the equations of motion of the theory. One particular test model is
explored: since ... | [
{
"created": "Sun, 28 Jul 2024 02:06:29 GMT",
"version": "v1"
}
] | 2024-07-30 | [
[
"Alexandre",
"Bruno",
""
]
] | We introduce the Higgs mechanism for the self-dual spin connection (also known as the Ashtekar connection), using the Pleba\'{n}ski formulation of gravity. We develop our formalism within the framework of the chiral action and derive the equations of motion of the theory. One particular test model is explored: since an... |
2211.11755 | Salvatore Mignemi | S. Meljanac and S. Mignemi | Noncommutative Yang model and its generalizations | 11 pages; version published on Journal of Mathematical Physics | null | 10.1063/5.0135492 | null | gr-qc hep-th | http://creativecommons.org/licenses/by/4.0/ | Long time ago, C.N. Yang proposed a model of noncommutative spacetime that
generalized the Snyder model to a curved background. In this paper we review
his proposal and the generalizations that have been suggested during the years.
In particular, we discuss the most general algebras that contain as subalgebras
both d... | [
{
"created": "Sun, 20 Nov 2022 18:20:08 GMT",
"version": "v1"
},
{
"created": "Sat, 25 Feb 2023 11:23:52 GMT",
"version": "v2"
}
] | 2023-03-08 | [
[
"Meljanac",
"S.",
""
],
[
"Mignemi",
"S.",
""
]
] | Long time ago, C.N. Yang proposed a model of noncommutative spacetime that generalized the Snyder model to a curved background. In this paper we review his proposal and the generalizations that have been suggested during the years. In particular, we discuss the most general algebras that contain as subalgebras both de ... |
1902.01705 | Telem Ibungochouba Singh | Y.Kenedy Meitei, T. Ibungochouba Singh, I. Ablu Meitei | Quantization of horizon area of Kerr-Newman-de Sitter black hole | Accepted in Chinese Physics Letters | null | 10.1088/0256-307X/36/3/030401 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Using the adiabatic invariant action and applying Bohr-Sommerfeld
quantization rule and first law of black hole thermodynamics a study of
quantization of entropy and horizon area of Kerr-Newman-de Sitter black hole is
carried out. The same entropy spectrum is obtained in two different coordinate
systems. It is also o... | [
{
"created": "Sat, 2 Feb 2019 07:57:42 GMT",
"version": "v1"
}
] | 2019-05-22 | [
[
"Meitei",
"Y. Kenedy",
""
],
[
"Singh",
"T. Ibungochouba",
""
],
[
"Meitei",
"I. Ablu",
""
]
] | Using the adiabatic invariant action and applying Bohr-Sommerfeld quantization rule and first law of black hole thermodynamics a study of quantization of entropy and horizon area of Kerr-Newman-de Sitter black hole is carried out. The same entropy spectrum is obtained in two different coordinate systems. It is also obs... |
1011.1538 | Farook Rahaman | F. Rahaman, Peter K. F. Kuhfittig, K. Chakraborty, A. A. Usmani and
Saibal Ray | Galactic rotation curves inspired by a noncommutative-geometry
background | 12 pages, 3 figures. Published in Gen.Rel.Grav. 44 (2012) 905-916 | Gen.Rel.Grav. 44 (2012) 905-916 | 10.1007/s10714-011-1320-5 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | This paper discusses the observed at rotation curves of galaxies in the
context of noncommutative geometry. The energy density of such a geometry is
diffused throughout a region due to the uncertainty encoded in the coordinate
commutator. This intrinsic property appears to be sufficient for producing
stable circular ... | [
{
"created": "Sat, 6 Nov 2010 05:41:21 GMT",
"version": "v1"
},
{
"created": "Thu, 6 Sep 2012 18:10:22 GMT",
"version": "v2"
}
] | 2016-11-25 | [
[
"Rahaman",
"F.",
""
],
[
"Kuhfittig",
"Peter K. F.",
""
],
[
"Chakraborty",
"K.",
""
],
[
"Usmani",
"A. A.",
""
],
[
"Ray",
"Saibal",
""
]
] | This paper discusses the observed at rotation curves of galaxies in the context of noncommutative geometry. The energy density of such a geometry is diffused throughout a region due to the uncertainty encoded in the coordinate commutator. This intrinsic property appears to be sufficient for producing stable circular or... |
1010.0241 | Mauro Cattani | M.Cattani | The Schwarzschild geometry and the black holes | 20 pages 4 figures | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this article we analyze the predictions of the Einstein gravitation theory
(EGT) on black holes in the framework of the Schwarzschild geometry that is
defined in the vacuum around a spherically symmetric mass distribution, without
charge, not in rotation. The Eddington and Kruskal metrics have been also taken
unto... | [
{
"created": "Fri, 1 Oct 2010 19:23:31 GMT",
"version": "v1"
}
] | 2010-10-04 | [
[
"Cattani",
"M.",
""
]
] | In this article we analyze the predictions of the Einstein gravitation theory (EGT) on black holes in the framework of the Schwarzschild geometry that is defined in the vacuum around a spherically symmetric mass distribution, without charge, not in rotation. The Eddington and Kruskal metrics have been also taken unto a... |
1702.06024 | Ricardo Landim | Ricardo C. G. Landim | Dark Sector Cosmology | 96 pages, PhD thesis (University of Sao Paulo) | null | null | null | gr-qc hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The dark side of the universe is mysterious and its nature is still unknown.
In fact, this poses perhaps as the biggest challenge in the modern cosmology.
The two components of the dark sector (dark matter and dark energy) correspond
today to around ninety five percent of the universe. The simplest dark energy
candid... | [
{
"created": "Fri, 17 Feb 2017 13:12:56 GMT",
"version": "v1"
}
] | 2017-02-21 | [
[
"Landim",
"Ricardo C. G.",
""
]
] | The dark side of the universe is mysterious and its nature is still unknown. In fact, this poses perhaps as the biggest challenge in the modern cosmology. The two components of the dark sector (dark matter and dark energy) correspond today to around ninety five percent of the universe. The simplest dark energy candidat... |
2212.08441 | Rafael Robson Lino dos Santos | Astrid Eichhorn, Rafael R. Lino dos Santos and Fabian Wagner | Shift-symmetric Horndeski gravity in the asymptotic-safety paradigm | 26 pages, 7 figures; references added, text matches the published
version | JCAP 02 (2023) 052 | 10.1088/1475-7516/2023/02/052 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Horndeski gravity is a popular contender for a phenomenological model of
dynamical dark energy, and as such subject to observational constraints. In
this work, we ask whether Horndeski gravity can be more than a phenomenological
model and instead become a fundamental theory, which extends towards high
energy scales a... | [
{
"created": "Fri, 16 Dec 2022 12:40:54 GMT",
"version": "v1"
},
{
"created": "Tue, 21 Mar 2023 13:00:07 GMT",
"version": "v2"
}
] | 2023-03-22 | [
[
"Eichhorn",
"Astrid",
""
],
[
"Santos",
"Rafael R. Lino dos",
""
],
[
"Wagner",
"Fabian",
""
]
] | Horndeski gravity is a popular contender for a phenomenological model of dynamical dark energy, and as such subject to observational constraints. In this work, we ask whether Horndeski gravity can be more than a phenomenological model and instead become a fundamental theory, which extends towards high energy scales and... |
1512.07097 | Nikolay Koshelev Anatolievich | N.A. Koshelev | Effective dark matter fluid with higher derivative corrections | v3: 20 pages, 2 figures, clarified several points, in section 4 added
discussion on the sensitivity of the effective dark matter fluid to various
h.d. corrections, results unchanged | null | null | null | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The effective field theory for hydrodynamics allows to write the action
functional for fluid. In this paper, some simplest possible higher derivative
terms in the fluid action and the cosmological consequences of their presence
are considered. Particular attention is given to dark matter, modelled as a
dust with high... | [
{
"created": "Tue, 22 Dec 2015 14:16:52 GMT",
"version": "v1"
},
{
"created": "Tue, 26 Jan 2016 18:40:53 GMT",
"version": "v2"
},
{
"created": "Wed, 20 Apr 2016 10:23:15 GMT",
"version": "v3"
}
] | 2016-04-21 | [
[
"Koshelev",
"N. A.",
""
]
] | The effective field theory for hydrodynamics allows to write the action functional for fluid. In this paper, some simplest possible higher derivative terms in the fluid action and the cosmological consequences of their presence are considered. Particular attention is given to dark matter, modelled as a dust with higher... |
2006.01462 | Vittorio De Falco Dr | Vittorio De Falco | New approaches to the general relativistic Poynting-Robertson effect | 12 pages, 5 figures, accepted on the 1st of June 2020 on Emerging
Science Journal | null | null | null | gr-qc astro-ph.HE hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Objectives: A systematic study on the general relativistic Poynting-Robertson
effect has been developed so far by introducing different complementary
approaches, which can be mainly divided in two kinds: (1) improving the
theoretical assessments and model in its simple aspects, and (2) extracting
mathematical and phy... | [
{
"created": "Tue, 2 Jun 2020 09:02:30 GMT",
"version": "v1"
}
] | 2020-06-03 | [
[
"De Falco",
"Vittorio",
""
]
] | Objectives: A systematic study on the general relativistic Poynting-Robertson effect has been developed so far by introducing different complementary approaches, which can be mainly divided in two kinds: (1) improving the theoretical assessments and model in its simple aspects, and (2) extracting mathematical and physi... |
1004.0804 | Deepak Baskaran Dr. | D. Baskaran, L. P. Grishchuk and W. Zhao | Primordial Gravitational Waves and Cosmic Microwave Background Radiation | A summary of presentations delivered at the OC1 parallel session
"Primordial Gravitational Waves and the CMB" of the 12th Marcel Grossmann
Meeting on General Relativity (Paris, 12-18 July 2009). To be published in
the Proceedings of the MG12. 18 pages, 8 (colour) figures. | null | null | null | gr-qc astro-ph.CO hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | This is a summary of presentations delivered at the OC1 parallel session
"Primordial Gravitational Waves and the CMB" of the 12th Marcel Grossmann
meeting in Paris, July 2009. The reports and discussions demonstrated
significant progress that was achieved in theory and observations. It appears
that the existing data ... | [
{
"created": "Tue, 6 Apr 2010 09:09:42 GMT",
"version": "v1"
}
] | 2015-03-14 | [
[
"Baskaran",
"D.",
""
],
[
"Grishchuk",
"L. P.",
""
],
[
"Zhao",
"W.",
""
]
] | This is a summary of presentations delivered at the OC1 parallel session "Primordial Gravitational Waves and the CMB" of the 12th Marcel Grossmann meeting in Paris, July 2009. The reports and discussions demonstrated significant progress that was achieved in theory and observations. It appears that the existing data pr... |
2101.08960 | Alberto Molgado | Jasel Berra-Montiel, Alberto Molgado, and Angel Rodr\'iguez-L\'opez | A review on geometric formulations for classical field theory: the
Bonzom-Livine model for gravity | 55 pages, no figures | null | 10.1088/1361-6382/abf711 | null | gr-qc hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Motivated by the study of physical models associated with General Relativity,
we review some finite-dimensional, geometric and covariant formulations that
allow us to characterize in a simple manner the symmetries for classical field
theory by implementing an appropriate fibre-bundle structure, either at the
Lagrangi... | [
{
"created": "Fri, 22 Jan 2021 06:03:36 GMT",
"version": "v1"
}
] | 2021-07-07 | [
[
"Berra-Montiel",
"Jasel",
""
],
[
"Molgado",
"Alberto",
""
],
[
"Rodríguez-López",
"Angel",
""
]
] | Motivated by the study of physical models associated with General Relativity, we review some finite-dimensional, geometric and covariant formulations that allow us to characterize in a simple manner the symmetries for classical field theory by implementing an appropriate fibre-bundle structure, either at the Lagrangian... |
2005.06515 | Tomasz Smo{\l}ka | Jacek Jezierski and Tomasz Smo{\l}ka | Quasi-local instantaneous charges asymptotics at spatial infinity | 27 pages. arXiv admin note: substantial text overlap with
arXiv:1903.06907 | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The article aims to analyze a construction of charges (conserved quantities)
for the gravity field in the (3+1) decomposition. The construction is based on
(3+1) splitting of conformal Yano--Killing (CYK) two-form. The splitting leads
to charges, defined on Cauchy surface, which are combined from components of
Weyl t... | [
{
"created": "Tue, 12 May 2020 07:59:30 GMT",
"version": "v1"
},
{
"created": "Mon, 14 Mar 2022 10:03:56 GMT",
"version": "v2"
}
] | 2022-03-15 | [
[
"Jezierski",
"Jacek",
""
],
[
"Smołka",
"Tomasz",
""
]
] | The article aims to analyze a construction of charges (conserved quantities) for the gravity field in the (3+1) decomposition. The construction is based on (3+1) splitting of conformal Yano--Killing (CYK) two-form. The splitting leads to charges, defined on Cauchy surface, which are combined from components of Weyl ten... |
1809.05392 | Albert Kotvytskiy | Albert Kotvytskiy, Semen Bronza and Svatoslav Vovk | Estimating the number of solutions equation of N-point gravitational
lens algebraic geometry methods | 5 pages | null | null | null | gr-qc astro-ph.CO math.AG | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | One of the main problems in the study of system of equations of the
gravitational lens, is the computation of coordinates from the known position
of the source. In the process of computing finds the solution of equations with
two unknowns. The difficulty lies in the fact that, in general, is not known
constructive or... | [
{
"created": "Sun, 2 Sep 2018 16:13:45 GMT",
"version": "v1"
}
] | 2018-09-28 | [
[
"Kotvytskiy",
"Albert",
""
],
[
"Bronza",
"Semen",
""
],
[
"Vovk",
"Svatoslav",
""
]
] | One of the main problems in the study of system of equations of the gravitational lens, is the computation of coordinates from the known position of the source. In the process of computing finds the solution of equations with two unknowns. The difficulty lies in the fact that, in general, is not known constructive or a... |
1102.4965 | Wei-Tou Ni | S. V. Dhurandhar, W.-T. Ni, and G. Wang | Numerical simulation of time delay interferometry for a LISA-like
mission with the simplification of having only one interferometer | 16 pages, 5 figures, version to appear in Advances in Space Research
reflecting the change from LISA to eLISA | null | 10.1016/j.asr.2012.09.017 | null | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In order to attain the requisite sensitivity for LISA, laser frequency noise
must be suppressed below the secondary noises such as the optical path noise,
acceleration noise etc. In a previous paper (Dhurandhar et al., Class. Quantum
Grav., 27, 135013, 2010), we have found a large family of second-generation
analytic... | [
{
"created": "Thu, 24 Feb 2011 11:35:00 GMT",
"version": "v1"
},
{
"created": "Thu, 20 Sep 2012 09:40:15 GMT",
"version": "v2"
}
] | 2012-10-25 | [
[
"Dhurandhar",
"S. V.",
""
],
[
"Ni",
"W. -T.",
""
],
[
"Wang",
"G.",
""
]
] | In order to attain the requisite sensitivity for LISA, laser frequency noise must be suppressed below the secondary noises such as the optical path noise, acceleration noise etc. In a previous paper (Dhurandhar et al., Class. Quantum Grav., 27, 135013, 2010), we have found a large family of second-generation analytic s... |
gr-qc/9909005 | Richard Price | A. Garat and R. H. Price (U. of Utah) | Gauge invariant formalism for second order perturbations of
Schwarzschild spacetimes | 18 pages, no figures | Phys.Rev. D61 (2000) 044006 | 10.1103/PhysRevD.61.044006 | null | gr-qc | null | The ``close limit,'' a method based on perturbations of Schwarzschild
spacetime, has proved to be a very useful tool for finding approximate
solutions to models of black hole collisions. Calculations carried out with
second order perturbation theory have been shown to give the limits of
applicability of the method wi... | [
{
"created": "Wed, 1 Sep 1999 20:46:50 GMT",
"version": "v1"
}
] | 2009-10-31 | [
[
"Garat",
"A.",
"",
"U. of Utah"
],
[
"Price",
"R. H.",
"",
"U. of Utah"
]
] | The ``close limit,'' a method based on perturbations of Schwarzschild spacetime, has proved to be a very useful tool for finding approximate solutions to models of black hole collisions. Calculations carried out with second order perturbation theory have been shown to give the limits of applicability of the method with... |
1401.0741 | Jose Wadih Maluf Dr. | J. W. Maluf | Repulsive gravity near naked singularities and point massive particles | 14 pages, no figures, referenced added, published in the General
Relativity and Gravitation Journal | null | 10.1007/s10714-014-1734-y | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate the existence of repulsive gravitational acceleration near
naked singularities. The investigation is carried out by means of the
acceleration tensor, which is a coordinate invariant object. We find that the
gravitational acceleration is repulsive in the vicinity of the origin in the
Reissner-Nordstr{\o... | [
{
"created": "Fri, 3 Jan 2014 22:07:47 GMT",
"version": "v1"
},
{
"created": "Mon, 5 May 2014 23:15:40 GMT",
"version": "v2"
}
] | 2014-05-07 | [
[
"Maluf",
"J. W.",
""
]
] | We investigate the existence of repulsive gravitational acceleration near naked singularities. The investigation is carried out by means of the acceleration tensor, which is a coordinate invariant object. We find that the gravitational acceleration is repulsive in the vicinity of the origin in the Reissner-Nordstr{\o}m... |
gr-qc/0408097 | Syksy Rasanen | Syksy Rasanen | Backreaction in the Lemaitre-Tolman-Bondi model | 11 pages, JCAP-style. v2: Published version. One added reference, no
major changes | JCAP0411:010,2004 | 10.1088/1475-7516/2004/11/010 | null | gr-qc astro-ph hep-th | null | We study backreaction analytically using the parabolic Lemaitre-Tolman-Bondi
universe as a toy model. We calculate the average expansion rate and energy
density on two different hypersurfaces and compare the results. We also
consider the Hubble law and find that backreaction slows down the expansion if
measured with ... | [
{
"created": "Tue, 31 Aug 2004 19:55:19 GMT",
"version": "v1"
},
{
"created": "Wed, 1 Dec 2004 15:20:41 GMT",
"version": "v2"
}
] | 2008-11-26 | [
[
"Rasanen",
"Syksy",
""
]
] | We study backreaction analytically using the parabolic Lemaitre-Tolman-Bondi universe as a toy model. We calculate the average expansion rate and energy density on two different hypersurfaces and compare the results. We also consider the Hubble law and find that backreaction slows down the expansion if measured with pr... |
gr-qc/0410122 | Massimo Tinto | Massimo Tinto, Michele Vallisneri, J.W. Armstrong | TDIR: Time-Delay Interferometric Ranging for Space-Borne
Gravitational-Wave Detectors | 5 pages, 2 figures | Phys.Rev. D71 (2005) 041101 | 10.1103/PhysRevD.71.041101 | null | gr-qc | null | Space-borne interferometric gravitational-wave detectors, sensitive in the
low-frequency (mHz) band, will fly in the next decade. In these detectors, the
spacecraft-to-spacecraft light-travel times will necessarily be unequal and
time-varying, and (because of aberration) will have different values on up- and
down-lin... | [
{
"created": "Mon, 25 Oct 2004 21:37:15 GMT",
"version": "v1"
}
] | 2009-11-10 | [
[
"Tinto",
"Massimo",
""
],
[
"Vallisneri",
"Michele",
""
],
[
"Armstrong",
"J. W.",
""
]
] | Space-borne interferometric gravitational-wave detectors, sensitive in the low-frequency (mHz) band, will fly in the next decade. In these detectors, the spacecraft-to-spacecraft light-travel times will necessarily be unequal and time-varying, and (because of aberration) will have different values on up- and down-links... |
1907.01050 | Carlos Alfonso Conde Ocazionez | Carlos Conde, Cristian Galvis and Eduard Larra\~naga | On the properties of a Static and a Stationary Charged Black Hole in
$f(R)$ Gravity | null | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In a recent paper, Nashed and Capozziello presented a new class of charged,
spherically symmetric black hole solutions of $f(R)$ gravity with an asymptotic
flat or (anti-)de Sitter behavior. These metrics depend on a dimensional
parameter $\alpha$ and are interesting because they cannot reduce to general
relativity s... | [
{
"created": "Mon, 1 Jul 2019 20:15:21 GMT",
"version": "v1"
},
{
"created": "Tue, 29 Sep 2020 14:29:04 GMT",
"version": "v2"
}
] | 2020-09-30 | [
[
"Conde",
"Carlos",
""
],
[
"Galvis",
"Cristian",
""
],
[
"Larrañaga",
"Eduard",
""
]
] | In a recent paper, Nashed and Capozziello presented a new class of charged, spherically symmetric black hole solutions of $f(R)$ gravity with an asymptotic flat or (anti-)de Sitter behavior. These metrics depend on a dimensional parameter $\alpha$ and are interesting because they cannot reduce to general relativity sol... |
1709.02264 | Maxim Eingorn | Maxim Eingorn | Cosmological law of universal gravitation | essay on aspects of screening in the context of equations of motion;
preprint of an article published in International Journal of Modern Physics D
[copyright World Scientific Publishing Company],
http://www.worldscientific.com/worldscinet/ijmpd; comments welcome | Int. J. Mod. Phys. D 26, 1750121 (2017) | 10.1142/S0218271817501218 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Without exceeding the limits of the conventional $\Lambda$CDM paradigm, we
argue for Yukawa law of interparticle interaction as the law of gravitation in
the real expanding inhomogeneous Universe. It covers the whole space and comes
up to take place of Newtonian gravity, which is restricted exclusively to
sub-horizon... | [
{
"created": "Thu, 7 Sep 2017 14:15:38 GMT",
"version": "v1"
}
] | 2017-09-08 | [
[
"Eingorn",
"Maxim",
""
]
] | Without exceeding the limits of the conventional $\Lambda$CDM paradigm, we argue for Yukawa law of interparticle interaction as the law of gravitation in the real expanding inhomogeneous Universe. It covers the whole space and comes up to take place of Newtonian gravity, which is restricted exclusively to sub-horizon d... |
1305.5674 | Simone Balmelli | Simone Balmelli and Philippe Jetzer | Effective-one-body Hamiltonian with next-to-leading order spin-spin
coupling for two nonprecessing black holes with aligned spins | 15 pages, 5 figures. Submitted to Phys. Rev. D | Phys. Rev. D 87 (2013) 124036; Erratum: Phys. Rev. D 90 (2014)
089905(E) | 10.1103/PhysRevD.87.124036 10.1103/PhysRevD.90.089905 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The canonical Arnowitt-Deser-Misner (ADM) Hamiltonian with next-to-leading
order spin-spin coupling [J. Steinhoff, S. Hergt, and G. Sch\"afer] is
converted into the EOB formalism of T. Damour, P. Jaranowski, and G. Sch\"afer
for the special case of spinning black hole binaries whose spins are aligned
with the angular... | [
{
"created": "Fri, 24 May 2013 09:58:38 GMT",
"version": "v1"
},
{
"created": "Wed, 12 Jun 2013 14:27:27 GMT",
"version": "v2"
},
{
"created": "Wed, 4 Feb 2015 21:00:15 GMT",
"version": "v3"
}
] | 2015-02-06 | [
[
"Balmelli",
"Simone",
""
],
[
"Jetzer",
"Philippe",
""
]
] | The canonical Arnowitt-Deser-Misner (ADM) Hamiltonian with next-to-leading order spin-spin coupling [J. Steinhoff, S. Hergt, and G. Sch\"afer] is converted into the EOB formalism of T. Damour, P. Jaranowski, and G. Sch\"afer for the special case of spinning black hole binaries whose spins are aligned with the angular m... |
0707.2819 | Dirk Puetzfeld | Dirk Puetzfeld, Yuri N. Obukhov | Propagation equations for deformable test bodies with microstructure in
extended theories of gravity | 27 pages, 1 figure, matches published version including the erratum
in Phys. Rev. D 79 (2009) 069902(E) | Phys.Rev.D76:084025,2007; Erratum-ibid.D79:069902,2009 | 10.1103/PhysRevD.76.084025 10.1103/PhysRevD.79.069902 | null | gr-qc astro-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We derive the equations of motion in metric-affine gravity by making use of
the conservation laws obtained from Noether's theorem. The results are given in
the form of propagation equations for the multipole decomposition of the matter
sources in metric-affine gravity, i.e., the canonical energy-momentum current
and ... | [
{
"created": "Wed, 18 Jul 2007 23:42:43 GMT",
"version": "v1"
},
{
"created": "Sun, 18 Nov 2007 13:37:34 GMT",
"version": "v2"
},
{
"created": "Mon, 30 Mar 2009 10:56:27 GMT",
"version": "v3"
}
] | 2014-11-18 | [
[
"Puetzfeld",
"Dirk",
""
],
[
"Obukhov",
"Yuri N.",
""
]
] | We derive the equations of motion in metric-affine gravity by making use of the conservation laws obtained from Noether's theorem. The results are given in the form of propagation equations for the multipole decomposition of the matter sources in metric-affine gravity, i.e., the canonical energy-momentum current and th... |
2006.02177 | Malcolm MacCallum | Malcolm A.H. MacCallum | Totally symmetrized spinors and null rotation invariance | Text revised after refereeing. This version accepted in Classical and
Quantum Gravity and now available online under CC BY 3.0 licence | Class. Quant. Grav. 37, 195011 (2020) | 10.1088/1361-6382/aba844 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In the existing implementations of the Cartan-Karlhede procedure for
characterization and classification of spacetimes, a prominent r\^ole is played
by multi-index two-component spinors symmetrized over both types of index. This
paper considers the conditions for, and detection of, null rotational
invariance of such ... | [
{
"created": "Wed, 3 Jun 2020 11:27:36 GMT",
"version": "v1"
},
{
"created": "Thu, 23 Jul 2020 08:03:47 GMT",
"version": "v2"
}
] | 2021-06-03 | [
[
"MacCallum",
"Malcolm A. H.",
""
]
] | In the existing implementations of the Cartan-Karlhede procedure for characterization and classification of spacetimes, a prominent r\^ole is played by multi-index two-component spinors symmetrized over both types of index. This paper considers the conditions for, and detection of, null rotational invariance of such sp... |
2311.01595 | Sepideh Bakhoda | Sepideh Bakhoda | Boundary conditions for Ashtekar-Barbero variables in the context of
asymptotically flat spacetimes which lead to supertranslations at spatial
infinity | 35 pages | null | null | null | gr-qc hep-th | http://creativecommons.org/licenses/by/4.0/ | This paper delves into the exploration of suitable boundary conditions for
the asymptotically flat scenario of general relativity presented in terms of
Ashtekar-Barbero variables. While the standard parity conditions have been
extensively studied in \cite{Thiemann, Campiglia}, it turns out that they fail
to produce n... | [
{
"created": "Thu, 2 Nov 2023 21:00:25 GMT",
"version": "v1"
}
] | 2023-11-06 | [
[
"Bakhoda",
"Sepideh",
""
]
] | This paper delves into the exploration of suitable boundary conditions for the asymptotically flat scenario of general relativity presented in terms of Ashtekar-Barbero variables. While the standard parity conditions have been extensively studied in \cite{Thiemann, Campiglia}, it turns out that they fail to produce non... |
2401.00277 | Alessandro Santoni | Benjamin Koch, Enrique Mu\~noz, Alessandro Santoni | Ultracold Neutrons in the Low Curvature Limit: Remarks on the
post-Newtonian effects | null | null | null | null | gr-qc quant-ph | http://creativecommons.org/licenses/by/4.0/ | Ultracold neutrons are great experimental tools to explore the gravitational
interaction in the regime of quantized states. From a theoretical perspective,
starting from a Dirac equation in curved spacetime, we applied a perturbative
scheme to systematically derive the non-relativistic Schr\"odinger equation
that gov... | [
{
"created": "Sat, 30 Dec 2023 16:45:56 GMT",
"version": "v1"
}
] | 2024-01-02 | [
[
"Koch",
"Benjamin",
""
],
[
"Muñoz",
"Enrique",
""
],
[
"Santoni",
"Alessandro",
""
]
] | Ultracold neutrons are great experimental tools to explore the gravitational interaction in the regime of quantized states. From a theoretical perspective, starting from a Dirac equation in curved spacetime, we applied a perturbative scheme to systematically derive the non-relativistic Schr\"odinger equation that gover... |
gr-qc/0603098 | Chandrasekher Mukku Prof. | Bindu A.Bambah, K.V.S.Shiv Chaitanya and C.Mukku | Baryon Asymmetry, Inflation and Squeezed States | 21 pages, 2 figures | AnnalsPhys.322:849-865,2007 | 10.1016/j.aop.2006.08.005 | null | gr-qc hep-ph hep-th | null | We use the general formalism of squeezed rotated states to calculate baryon
asymmetry in the wake of inflation through parametric amplification. We base
our analysis on a B and CP violating Lagrangian in an isotropically expanding
universe. The B and CP violating terms originate from the coupling of complex
fields wi... | [
{
"created": "Fri, 24 Mar 2006 15:00:45 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Bambah",
"Bindu A.",
""
],
[
"Chaitanya",
"K. V. S. Shiv",
""
],
[
"Mukku",
"C.",
""
]
] | We use the general formalism of squeezed rotated states to calculate baryon asymmetry in the wake of inflation through parametric amplification. We base our analysis on a B and CP violating Lagrangian in an isotropically expanding universe. The B and CP violating terms originate from the coupling of complex fields with... |
gr-qc/0409118 | Roberto Casadio | G.L. Alberghi, R. Casadio and G.Venturi | Thermodynamics of a collapsing shell in an expanding Universe | 9 pages, 2 figures, accepted for publication in Phys. Lett. B | Phys.Lett.B602:8-13,2004 | 10.1016/j.physletb.2004.09.063 | null | gr-qc | null | We describe the quasi-static collapse of a radiating, spherical shell of
matter in de Sitter space-time using a thermodynamical formalism. It is found
that the specific heat at constant area and other thermodynamical quantities
exhibit singularities related to phase transitions during the collapse.
| [
{
"created": "Thu, 30 Sep 2004 08:59:13 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Alberghi",
"G. L.",
""
],
[
"Casadio",
"R.",
""
],
[
"Venturi",
"G.",
""
]
] | We describe the quasi-static collapse of a radiating, spherical shell of matter in de Sitter space-time using a thermodynamical formalism. It is found that the specific heat at constant area and other thermodynamical quantities exhibit singularities related to phase transitions during the collapse. |
1001.4029 | Philipp Hoehn | Philipp A Hoehn and Susan M Scott | Conformal formulation of cosmological futures | 3 pages, to appear in the proceedings of the 12th Marcel Grossmann
Meeting, Paris, July 2009 | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We summarise the new conformal framework of an Anisotropic Future Endless
Universe and an Anisotropic Future Singularity. Both new definitions are
motivated by, but not restricted to quiescent cosmology and the Weyl curvature
hypothesis, which previously only possessed a framework for a classical initial
state of the... | [
{
"created": "Fri, 22 Jan 2010 15:45:39 GMT",
"version": "v1"
}
] | 2010-01-25 | [
[
"Hoehn",
"Philipp A",
""
],
[
"Scott",
"Susan M",
""
]
] | We summarise the new conformal framework of an Anisotropic Future Endless Universe and an Anisotropic Future Singularity. Both new definitions are motivated by, but not restricted to quiescent cosmology and the Weyl curvature hypothesis, which previously only possessed a framework for a classical initial state of the u... |
1812.07490 | Luc Blanchet | Luc Blanchet | Analytic Approximations in GR and Gravitational Waves | 24 pages, 2 figures, based on a plenary talk given at the Fifteenth
Marcel Grossmann Meeting on recent developments in General Relativity (MG15),
Rome, July 2018, added references | null | 10.1142/S0218271819300118 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Analytic approximation methods in general relativity play a very important
role when analyzing the gravitational wave signals recently discovered by the
LIGO and Virgo detectors. In this contribution, we present the state-of-the-art
and some recent developments in the famous post-Newtonian (PN) or slow-motion
approxi... | [
{
"created": "Tue, 18 Dec 2018 17:17:52 GMT",
"version": "v1"
},
{
"created": "Fri, 21 Dec 2018 18:23:10 GMT",
"version": "v2"
}
] | 2019-05-22 | [
[
"Blanchet",
"Luc",
""
]
] | Analytic approximation methods in general relativity play a very important role when analyzing the gravitational wave signals recently discovered by the LIGO and Virgo detectors. In this contribution, we present the state-of-the-art and some recent developments in the famous post-Newtonian (PN) or slow-motion approxima... |
2107.10129 | Amanda Guerrieri | Amanda Guerrieri and Rodrigo F. Sobreiro | Carroll limit of four-dimensional gravity theories in the first order
formalism | 22 pages; 1 figure | null | 10.1088/1361-6382/ac345f | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We explore the ultra-relativistic limit of a class of four dimensional
gravity theories, known as Lovelock-Cartan gravities, in the first order
formalism. First, we review the well known limit of the Einstein-Hilbert
action. A very useful scale symmetry involving the vierbeins and the boost
connection is presented. M... | [
{
"created": "Wed, 21 Jul 2021 14:51:50 GMT",
"version": "v1"
},
{
"created": "Fri, 6 Aug 2021 18:17:08 GMT",
"version": "v2"
},
{
"created": "Fri, 15 Oct 2021 00:23:42 GMT",
"version": "v3"
}
] | 2021-12-08 | [
[
"Guerrieri",
"Amanda",
""
],
[
"Sobreiro",
"Rodrigo F.",
""
]
] | We explore the ultra-relativistic limit of a class of four dimensional gravity theories, known as Lovelock-Cartan gravities, in the first order formalism. First, we review the well known limit of the Einstein-Hilbert action. A very useful scale symmetry involving the vierbeins and the boost connection is presented. Mor... |
gr-qc/0203011 | Barbachoux | C.Barbachoux, J.Gariel, G.Marcilhacy, N.O.Santos | Reduction of the effective mass of the Reissner-Nordstrom spacetime | accepted in Int.J.Mod.Phys. D some changes have been performed and
the bibliography had been enlarged | null | 10.1142/S0218271802002311 | null | gr-qc | null | We derive the Teixeira, Wolk and Som method, for obtaining electrostatic
solutions from given vacuum solutions, in its inverse form. Then we use it to
obtain the geometrical mass $M_S$ in the Schwarzschild spacetime, and we find
$M_S^2=M^2-Q^2$, where $M$ and $Q$ are, respectively, the mass and charge
parameters of t... | [
{
"created": "Mon, 4 Mar 2002 09:20:59 GMT",
"version": "v1"
},
{
"created": "Mon, 17 Jun 2002 15:11:43 GMT",
"version": "v2"
}
] | 2009-11-07 | [
[
"Barbachoux",
"C.",
""
],
[
"Gariel",
"J.",
""
],
[
"Marcilhacy",
"G.",
""
],
[
"Santos",
"N. O.",
""
]
] | We derive the Teixeira, Wolk and Som method, for obtaining electrostatic solutions from given vacuum solutions, in its inverse form. Then we use it to obtain the geometrical mass $M_S$ in the Schwarzschild spacetime, and we find $M_S^2=M^2-Q^2$, where $M$ and $Q$ are, respectively, the mass and charge parameters of the... |
0705.3128 | Bijan Saha | Bijan Saha and Victor Rikhvitsky | Anisotropic cosmological models with spinor field and viscous fluid in
presence of a $\Lambda$ term: qualitative solutions | 12 pages, 3 Tables, 12 Figures | J.Phys.A40 (2007) 14011 - 14028 | 10.1088/1751-8113/40/46/013 | null | gr-qc | null | The study of a self-consistent system of nonlinear spinor and Bianchi type I
gravitational fields in presence of a viscous fluid and $\Lambda$ term with the
spinor field nonlinearity being some arbitrary functions of the invariants $I$
an $J$ constructed from bilinear spinor forms $S$ and $P$, generates a
multi-param... | [
{
"created": "Tue, 22 May 2007 09:57:57 GMT",
"version": "v1"
}
] | 2015-05-01 | [
[
"Saha",
"Bijan",
""
],
[
"Rikhvitsky",
"Victor",
""
]
] | The study of a self-consistent system of nonlinear spinor and Bianchi type I gravitational fields in presence of a viscous fluid and $\Lambda$ term with the spinor field nonlinearity being some arbitrary functions of the invariants $I$ an $J$ constructed from bilinear spinor forms $S$ and $P$, generates a multi-paramet... |
1302.0687 | Alexey Golovnev | Alexey Golovnev | ADM analysis and massive gravity | 6 pages; 7th Mathematical Physics Meeting: Summer School and
Conference on Modern Mathematical Physics; minor changes | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | This is a contribution to the Proceedings of the 7th Mathematical Physics
Meeting: Summer School and Conference on Modern Mathematical Physics, held in
Belgrade 09 -- 19 September 2012.
We give an easily accessible introduction to the ADM decomposition of the
curvature components. After that we review the basic pro... | [
{
"created": "Mon, 4 Feb 2013 13:56:47 GMT",
"version": "v1"
},
{
"created": "Fri, 15 Feb 2013 09:57:38 GMT",
"version": "v2"
},
{
"created": "Fri, 22 Mar 2013 13:55:51 GMT",
"version": "v3"
},
{
"created": "Tue, 26 Mar 2013 12:48:06 GMT",
"version": "v4"
}
] | 2013-03-27 | [
[
"Golovnev",
"Alexey",
""
]
] | This is a contribution to the Proceedings of the 7th Mathematical Physics Meeting: Summer School and Conference on Modern Mathematical Physics, held in Belgrade 09 -- 19 September 2012. We give an easily accessible introduction to the ADM decomposition of the curvature components. After that we review the basic problem... |
2107.08641 | Homa Shababi | Mohamed Moussa, Homa Shababi, Anisur Rahaman, Ujjal Kumar Dey | Minimal length, maximal momentum and stochastic gravitational waves
spectrum generated from cosmological QCD phase transition | 11 pages, 7 figures | Physics Letters B 820 (2021) 136488 | 10.1016/j.physletb.2021.136488 | null | gr-qc hep-th | http://creativecommons.org/licenses/by/4.0/ | We investigate thoroughly the temporal evolution of the universe temperature
as a function of the Hubble parameter associated with the Stochastic
Gravitational Wave (SGW), that formed at the cosmological QCD phase transition
epoch to the current epoch, within the Generalized Uncertainty Principle (GUP)
framework. Her... | [
{
"created": "Mon, 19 Jul 2021 06:45:05 GMT",
"version": "v1"
}
] | 2021-07-20 | [
[
"Moussa",
"Mohamed",
""
],
[
"Shababi",
"Homa",
""
],
[
"Rahaman",
"Anisur",
""
],
[
"Dey",
"Ujjal Kumar",
""
]
] | We investigate thoroughly the temporal evolution of the universe temperature as a function of the Hubble parameter associated with the Stochastic Gravitational Wave (SGW), that formed at the cosmological QCD phase transition epoch to the current epoch, within the Generalized Uncertainty Principle (GUP) framework. Here ... |
1706.05097 | Richard Brito | Richard Brito, Shrobana Ghosh, Enrico Barausse, Emanuele Berti, Vitor
Cardoso, Irina Dvorkin, Antoine Klein, Paolo Pani | Stochastic and resolvable gravitational waves from ultralight bosons | 6 pages, 4 Figures; v2: small changes to match version published in
Physical Review Letters | Phys. Rev. Lett. 119, 131101 (2017) | 10.1103/PhysRevLett.119.131101 | null | gr-qc astro-ph.HE hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Ultralight scalar fields around spinning black holes can trigger superradiant
instabilities, forming a long-lived bosonic condensate outside the horizon. We
use numerical solutions of the perturbed field equations and astrophysical
models of massive and stellar-mass black hole populations to compute, for the
first ti... | [
{
"created": "Thu, 15 Jun 2017 21:37:32 GMT",
"version": "v1"
},
{
"created": "Wed, 4 Oct 2017 14:27:37 GMT",
"version": "v2"
}
] | 2017-10-05 | [
[
"Brito",
"Richard",
""
],
[
"Ghosh",
"Shrobana",
""
],
[
"Barausse",
"Enrico",
""
],
[
"Berti",
"Emanuele",
""
],
[
"Cardoso",
"Vitor",
""
],
[
"Dvorkin",
"Irina",
""
],
[
"Klein",
"Antoine",
""
],
[
... | Ultralight scalar fields around spinning black holes can trigger superradiant instabilities, forming a long-lived bosonic condensate outside the horizon. We use numerical solutions of the perturbed field equations and astrophysical models of massive and stellar-mass black hole populations to compute, for the first time... |
gr-qc/0111034 | Guillermo A. Mena Marugan | Guillermo A. Mena Marugan and Saulo Carneiro | Holography and the large number hypothesis | 4 pages, version accepted for publication in Phys. Rev. D | Phys.Rev. D65 (2002) 087303 | 10.1103/PhysRevD.65.087303 | null | gr-qc astro-ph | null | Dirac's large number hypothesis is motivated by certain scaling
transformations that relate the parameters of macro and microphysics. We show
that these relations can actually be explained in terms of the holographic $N$
bound conjectured by Bousso and a series of purely cosmological observations,
namely, that our un... | [
{
"created": "Mon, 12 Nov 2001 17:27:22 GMT",
"version": "v1"
},
{
"created": "Mon, 25 Feb 2002 16:53:26 GMT",
"version": "v2"
}
] | 2009-11-07 | [
[
"Marugan",
"Guillermo A. Mena",
""
],
[
"Carneiro",
"Saulo",
""
]
] | Dirac's large number hypothesis is motivated by certain scaling transformations that relate the parameters of macro and microphysics. We show that these relations can actually be explained in terms of the holographic $N$ bound conjectured by Bousso and a series of purely cosmological observations, namely, that our univ... |
0906.0023 | Holger Pletsch | Holger J. Pletsch, Bruce Allen | Exploiting Large-Scale Correlations to Detect Continuous Gravitational
Waves | 4 pages, 2 figures | Phys.Rev.Lett.103:181102,2009 | 10.1103/PhysRevLett.103.181102 | LIGO-P0900048, AEI-2009-051 | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Fully coherent searches (over realistic ranges of parameter space and
year-long observation times) for unknown sources of continuous gravitational
waves are computationally prohibitive. Less expensive hierarchical searches
divide the data into shorter segments which are analyzed coherently, then
detection statistics ... | [
{
"created": "Sun, 31 May 2009 21:23:53 GMT",
"version": "v1"
},
{
"created": "Tue, 27 Oct 2009 15:27:21 GMT",
"version": "v2"
}
] | 2009-10-27 | [
[
"Pletsch",
"Holger J.",
""
],
[
"Allen",
"Bruce",
""
]
] | Fully coherent searches (over realistic ranges of parameter space and year-long observation times) for unknown sources of continuous gravitational waves are computationally prohibitive. Less expensive hierarchical searches divide the data into shorter segments which are analyzed coherently, then detection statistics fr... |
2004.00356 | Alkiviadis Triantafyllopoulos | Alkiviadis Triantafyllopoulos, Emmanuel Kapsabelis and Panayiotis
Stavrinos | Gravitational Field on the Lorentz Tangent Bundle: Generalized Paths and
Field Equations | 13 pages. arXiv admin note: text overlap with arXiv:2006.05913 | Eur. Phys. J. Plus 135 (2020) 557 | 10.1140/epjp/s13360-020-00570-x | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate the dynamics of gravitational field and particles in a
generalized framework of a Lorentz tangent bundle. By variating an appropriate
action for each case, we obtain generalized forms of paths and generalized
field equations for a Sasaki type metric. We show that Stokes theorem is
modified with respect... | [
{
"created": "Wed, 1 Apr 2020 11:53:58 GMT",
"version": "v1"
},
{
"created": "Tue, 21 Jul 2020 17:23:42 GMT",
"version": "v2"
}
] | 2020-07-23 | [
[
"Triantafyllopoulos",
"Alkiviadis",
""
],
[
"Kapsabelis",
"Emmanuel",
""
],
[
"Stavrinos",
"Panayiotis",
""
]
] | We investigate the dynamics of gravitational field and particles in a generalized framework of a Lorentz tangent bundle. By variating an appropriate action for each case, we obtain generalized forms of paths and generalized field equations for a Sasaki type metric. We show that Stokes theorem is modified with respect t... |
1709.02265 | Luis Herrera | L. Herrera and A. Di Prisco | Self-similarity in static axially symmetric relativistic fluids | 34 pages latex. Published in Int. J. Mod. Phys. D | Int. J. Mod. Phys.D27,1750176, (2018) | 10.1142/S0218271817501760 | null | gr-qc math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We carry on a general study on axially symmetric, static fluids admitting a
conformal Killing vector (CKV). The physical relevance of this kind of symmetry
is emphasized. Next, we investigate all possible consequences derived from the
imposition of such a symmetry. Special attention is paid to the problem of
symmetry... | [
{
"created": "Thu, 7 Sep 2017 14:18:41 GMT",
"version": "v1"
},
{
"created": "Tue, 2 Jan 2018 08:18:23 GMT",
"version": "v2"
}
] | 2018-01-10 | [
[
"Herrera",
"L.",
""
],
[
"Di Prisco",
"A.",
""
]
] | We carry on a general study on axially symmetric, static fluids admitting a conformal Killing vector (CKV). The physical relevance of this kind of symmetry is emphasized. Next, we investigate all possible consequences derived from the imposition of such a symmetry. Special attention is paid to the problem of symmetry i... |
2101.07763 | Godwill Mbiti Kanyolo PhD | Godwill Mbiti Kanyolo and Titus Masese | Reproducing the asymptotic behaviour of galaxy rotation curves by a
novel constraint in general relativity | 13 pages, 1 figure | null | null | null | gr-qc astro-ph.GA cond-mat.other | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The cold dark matter paradigm has been posited as the standard explanation
for the non-Keplerian behavior of galaxy rotation curves, where for galaxies
satisfying the Tully-Fisher relation, the mass of the dark matter halo from a
large class of universal dark matter profiles ought to roughly increase
linearly with ra... | [
{
"created": "Tue, 19 Jan 2021 18:16:30 GMT",
"version": "v1"
},
{
"created": "Sat, 6 Feb 2021 14:53:30 GMT",
"version": "v2"
},
{
"created": "Thu, 8 Apr 2021 11:25:46 GMT",
"version": "v3"
},
{
"created": "Sun, 30 May 2021 18:03:08 GMT",
"version": "v4"
},
{
"cre... | 2021-09-08 | [
[
"Kanyolo",
"Godwill Mbiti",
""
],
[
"Masese",
"Titus",
""
]
] | The cold dark matter paradigm has been posited as the standard explanation for the non-Keplerian behavior of galaxy rotation curves, where for galaxies satisfying the Tully-Fisher relation, the mass of the dark matter halo from a large class of universal dark matter profiles ought to roughly increase linearly with radi... |
1901.00767 | Shin'ichi Nojiri | Iver Brevik and Shin'ichi Nojiri | Gravitational Waves in the Presence of Viscosity | Version to appear in IJMPD. LaTeX 14 pages | null | 10.1142/S0218271819501335 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We analyze gravitational waves propagating in an isotropic cosmic fluid
endowed with a bulk viscosity $\zeta$ and a shear viscosity $\eta$, assuming
these coefficients to vary with fluid density $\rho$ as $\rho^\lambda$, with
$\lambda=1/2$ favored by experimental evidence. We give the general governing
equation for t... | [
{
"created": "Tue, 1 Jan 2019 05:19:32 GMT",
"version": "v1"
},
{
"created": "Mon, 29 Apr 2019 18:09:14 GMT",
"version": "v2"
},
{
"created": "Mon, 15 Jul 2019 09:41:31 GMT",
"version": "v3"
}
] | 2019-07-16 | [
[
"Brevik",
"Iver",
""
],
[
"Nojiri",
"Shin'ichi",
""
]
] | We analyze gravitational waves propagating in an isotropic cosmic fluid endowed with a bulk viscosity $\zeta$ and a shear viscosity $\eta$, assuming these coefficients to vary with fluid density $\rho$ as $\rho^\lambda$, with $\lambda=1/2$ favored by experimental evidence. We give the general governing equation for the... |
1705.10775 | Alexey Chopovsky | Alexander Zhuk, Alexey Chopovsky, Seyed Hossein Fakhr, Valerii Shulga,
Han Wei | Weak-field limit of Kaluza-Klein models with spherically symmetric
static scalar field: observational constraints | 7 pages, no figures | Eur. Phys. J. C (2017) 77: 721 | 10.1140/epjc/s10052-017-5311-x | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In a multidimensional Kaluza-Klein model with Ricci-flat internal space, we
study the gravitational field in the weak-field limit. This field is created by
two coupled sources. First, this is a point-like massive body which has a
dust-like equation of state in the external space and an arbitrary parameter
$\Omega$ of... | [
{
"created": "Tue, 30 May 2017 17:54:33 GMT",
"version": "v1"
},
{
"created": "Thu, 2 Nov 2017 16:48:31 GMT",
"version": "v2"
}
] | 2017-11-03 | [
[
"Zhuk",
"Alexander",
""
],
[
"Chopovsky",
"Alexey",
""
],
[
"Fakhr",
"Seyed Hossein",
""
],
[
"Shulga",
"Valerii",
""
],
[
"Wei",
"Han",
""
]
] | In a multidimensional Kaluza-Klein model with Ricci-flat internal space, we study the gravitational field in the weak-field limit. This field is created by two coupled sources. First, this is a point-like massive body which has a dust-like equation of state in the external space and an arbitrary parameter $\Omega$ of e... |
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