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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
gr-qc/0702110 | Diego Pavon | Narayan Banerjee and Diego Pavon | Holographic dark energy in Brans-Dicke theory | 12 pages, version to match published paper | Phys.Lett.B647:477-481,2007 | 10.1016/j.physletb.2007.02.035 | null | gr-qc astro-ph hep-ph hep-th | null | In this Letter it is shown that when the holographic dark energy is combined
with the Brans-Dicke field equations the transition from decelerated to
accelerated expansion of the Universe can be more easily accounted for than
when resort to the Einstein field equations is made. Likewise, the coincidence
problem of lat... | [
{
"created": "Tue, 20 Feb 2007 12:53:27 GMT",
"version": "v1"
},
{
"created": "Mon, 2 Apr 2007 11:13:34 GMT",
"version": "v2"
}
] | 2008-11-26 | [
[
"Banerjee",
"Narayan",
""
],
[
"Pavon",
"Diego",
""
]
] | In this Letter it is shown that when the holographic dark energy is combined with the Brans-Dicke field equations the transition from decelerated to accelerated expansion of the Universe can be more easily accounted for than when resort to the Einstein field equations is made. Likewise, the coincidence problem of late ... |
1609.09721 | Hongsheng Zhang | Hongsheng Zhang | Twisted spacetime in Einstein gravity | null | null | null | null | gr-qc hep-th | http://creativecommons.org/licenses/by-sa/4.0/ | We find a vacuum stationary twisted solution in four-dimensional Einstein
gravity. Its frame dragging angular velocities are antisymmetric with respect
to the equatorial plane. It possesses a symmetry of joint inversion of time and
parity with respect to the equatorial plane. Its Arnowitt-Deser-Misner (ADM)
mass and ... | [
{
"created": "Thu, 29 Sep 2016 07:49:26 GMT",
"version": "v1"
}
] | 2016-10-03 | [
[
"Zhang",
"Hongsheng",
""
]
] | We find a vacuum stationary twisted solution in four-dimensional Einstein gravity. Its frame dragging angular velocities are antisymmetric with respect to the equatorial plane. It possesses a symmetry of joint inversion of time and parity with respect to the equatorial plane. Its Arnowitt-Deser-Misner (ADM) mass and an... |
1602.08398 | David Langlois | Jibril Ben Achour, David Langlois, Karim Noui | Degenerate higher order scalar-tensor theories beyond Horndeski and
disformal transformations | 22 pages; no figure | null | 10.1103/PhysRevD.93.124005 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider all degenerate scalar-tensor theories that depend quadratically
on second order derivatives of a scalar field, which we have identified in a
previous work. These theories, whose degeneracy in general ensures the absence
of Ostrogradski instability, include the quartic Horndenski Lagrangian as well
as its ... | [
{
"created": "Fri, 26 Feb 2016 17:03:51 GMT",
"version": "v1"
}
] | 2016-06-22 | [
[
"Achour",
"Jibril Ben",
""
],
[
"Langlois",
"David",
""
],
[
"Noui",
"Karim",
""
]
] | We consider all degenerate scalar-tensor theories that depend quadratically on second order derivatives of a scalar field, which we have identified in a previous work. These theories, whose degeneracy in general ensures the absence of Ostrogradski instability, include the quartic Horndenski Lagrangian as well as its qu... |
0711.1934 | Xin Li | Xin Li and Zhe Chang | Toward a Gravitation Theory in Berwald--Finsler Space | 15 pages | null | null | null | gr-qc hep-th | null | Finsler geometry is a natural and fundamental generalization of Riemann
geometry. The Finsler structure depends on both coordinates and velocities. It
is defined as a function on tangent bundle of a manifold. We use the Bianchi
identities satisfied by Chern curvature to set up a gravitation theory in
Berwald-Finsler ... | [
{
"created": "Tue, 13 Nov 2007 09:46:21 GMT",
"version": "v1"
}
] | 2007-11-14 | [
[
"Li",
"Xin",
""
],
[
"Chang",
"Zhe",
""
]
] | Finsler geometry is a natural and fundamental generalization of Riemann geometry. The Finsler structure depends on both coordinates and velocities. It is defined as a function on tangent bundle of a manifold. We use the Bianchi identities satisfied by Chern curvature to set up a gravitation theory in Berwald-Finsler sp... |
gr-qc/0603083 | Alexey V. Toporensky | Alexey V. Toporensky | Regular and Chaotic Regimes in Scalar Field Cosmology | Published in SIGMA (Symmetry, Integrability and Geometry: Methods and
Applications) at http://www.emis.de/journals/SIGMA/ | SIGMA 2:037,2006 | 10.3842/SIGMA.2006.037 | null | gr-qc nlin.CD | null | A transient chaos in a closed FRW cosmological model with a scalar field is
studied. We describe two different chaotic regimes and show that the type of
chaos in this model depends on the scalar field potential. We have found also
that for sufficiently steep potentials or for potentials with large
cosmological consta... | [
{
"created": "Tue, 21 Mar 2006 20:00:57 GMT",
"version": "v1"
}
] | 2008-12-19 | [
[
"Toporensky",
"Alexey V.",
""
]
] | A transient chaos in a closed FRW cosmological model with a scalar field is studied. We describe two different chaotic regimes and show that the type of chaos in this model depends on the scalar field potential. We have found also that for sufficiently steep potentials or for potentials with large cosmological constant... |
1609.08021 | Mari\'an Pilc | Mari\'an Pilc | Covariant Quantum Gravity I: Covariant Hamiltonian Framework | null | null | null | null | gr-qc math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The first part of the series formulates the Einstein-Cartan theory in the
covariant hamiltonian framework. The first section revises the general
multisymplectic approach and introduces the notion of the d-jet bundles. Since
the whole Standard Model Lagrangian (including gravity) can be written as the
functional of th... | [
{
"created": "Mon, 26 Sep 2016 15:17:21 GMT",
"version": "v1"
},
{
"created": "Thu, 15 Mar 2018 07:57:02 GMT",
"version": "v2"
}
] | 2018-03-16 | [
[
"Pilc",
"Marián",
""
]
] | The first part of the series formulates the Einstein-Cartan theory in the covariant hamiltonian framework. The first section revises the general multisymplectic approach and introduces the notion of the d-jet bundles. Since the whole Standard Model Lagrangian (including gravity) can be written as the functional of the ... |
gr-qc/0110100 | A. Gopakumar | A. Gopakumar, Bala R. Iyer | Second post-Newtonian gravitational wave polarizations for compact
binaries in elliptical orbits | 40 pages, 10 figures, To appear in Phys. Rev. D | Phys.Rev. D65 (2002) 084011 | 10.1103/PhysRevD.65.084011 | null | gr-qc | null | The second post-Newtonian (2PN) contribution to the `plus' and `cross'
gravitational wave polarizations associated with gravitational radiation from
non-spinning, compact binaries moving in elliptic orbits is computed. The
computation starts from our earlier results on 2PN generation, crucially
employs the 2PN accura... | [
{
"created": "Tue, 23 Oct 2001 21:45:07 GMT",
"version": "v1"
},
{
"created": "Mon, 11 Mar 2002 19:20:07 GMT",
"version": "v2"
}
] | 2009-11-07 | [
[
"Gopakumar",
"A.",
""
],
[
"Iyer",
"Bala R.",
""
]
] | The second post-Newtonian (2PN) contribution to the `plus' and `cross' gravitational wave polarizations associated with gravitational radiation from non-spinning, compact binaries moving in elliptic orbits is computed. The computation starts from our earlier results on 2PN generation, crucially employs the 2PN accurate... |
1309.3346 | Yun Soo Myung | Yun Soo Myung | Instability of a Kerr black hole in f(R) gravity | 13 pages, no figures, title changed slightly, version to appear in
PRD | Phys. Rev. D 88, 104017 (2013) | 10.1103/PhysRevD.88.104017 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the stability of a rotating (Kerr) black hole in the viable $f(R)$
gravity. The linearized-Ricci scalar equation shows the superradiant
instability, leading to the instability of the Kerr black hole in $f(R)$
gravity.
| [
{
"created": "Fri, 13 Sep 2013 01:48:41 GMT",
"version": "v1"
},
{
"created": "Tue, 5 Nov 2013 22:50:54 GMT",
"version": "v2"
}
] | 2013-11-27 | [
[
"Myung",
"Yun Soo",
""
]
] | We study the stability of a rotating (Kerr) black hole in the viable $f(R)$ gravity. The linearized-Ricci scalar equation shows the superradiant instability, leading to the instability of the Kerr black hole in $f(R)$ gravity. |
2104.08603 | P. A. Gonzalez | Almendra Arag\'on, P. A. Gonz\'alez, Joel Saavedra, Yerko V\'asquez | Scalar quasinormal modes for 2+1-dimensional Coulomb like AdS black
holes from non lineal electrodynamics | Corrected version, and references added | null | 10.1007/s10714-021-02864-6 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the propagation of scalar fields in the background of
$2+1$-dimensional Coulomb like AdS black holes, and we show that such
propagation is stable under Dirichlet boundary conditions. Then, we solve the
Klein-Gordon equation by using the pseudospectral Chevyshev method, and we find
the quasinormal frequencies... | [
{
"created": "Sat, 17 Apr 2021 17:59:15 GMT",
"version": "v1"
},
{
"created": "Thu, 29 Apr 2021 14:10:26 GMT",
"version": "v2"
}
] | 2021-10-27 | [
[
"Aragón",
"Almendra",
""
],
[
"González",
"P. A.",
""
],
[
"Saavedra",
"Joel",
""
],
[
"Vásquez",
"Yerko",
""
]
] | We study the propagation of scalar fields in the background of $2+1$-dimensional Coulomb like AdS black holes, and we show that such propagation is stable under Dirichlet boundary conditions. Then, we solve the Klein-Gordon equation by using the pseudospectral Chevyshev method, and we find the quasinormal frequencies. ... |
gr-qc/0308045 | John T. Whelan | John T Whelan, Edward Daw, Ik Siong Heng, Martin P McHugh and Albert
Lazzarini | Stochastic Background Search Correlating ALLEGRO with LIGO Engineering
Data | 8 pages, 2 encapsulated PostScript figures, uses IOP class files,
submitted to the proceedings of the 7th Gravitational Wave Data Analysis
Workshop (which will be published in Classical and Quantum Gravity) | Class.Quant.Grav.20:S689-S696,2003 | 10.1088/0264-9381/20/17/312 | null | gr-qc | null | We describe the role of correlation measurements between the LIGO
interferometer in Livingston, LA, and the ALLEGRO resonant bar detector in
Baton Rouge, LA, in searches for a stochastic background of gravitational
waves. Such measurements provide a valuable complement to correlations between
interferometers at the t... | [
{
"created": "Thu, 14 Aug 2003 13:44:34 GMT",
"version": "v1"
}
] | 2009-12-15 | [
[
"Whelan",
"John T",
""
],
[
"Daw",
"Edward",
""
],
[
"Heng",
"Ik Siong",
""
],
[
"McHugh",
"Martin P",
""
],
[
"Lazzarini",
"Albert",
""
]
] | We describe the role of correlation measurements between the LIGO interferometer in Livingston, LA, and the ALLEGRO resonant bar detector in Baton Rouge, LA, in searches for a stochastic background of gravitational waves. Such measurements provide a valuable complement to correlations between interferometers at the two... |
1910.01941 | Roberto Peron Dr. | David M. Lucchesi, Massimo Visco, Roberto Peron, Massimo Bassan,
Giuseppe Pucacco, Carmen Pardini, Luciano Anselmo, Carmelo Magnafico | An improved measurement of the Lense-Thirring precession on the orbits
of laser-ranged satellites with an accuracy approaching the 1% level | null | null | null | null | gr-qc astro-ph.EP hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present a new measurement of the Lense-Thirring effect on the orbits of
the geodetic satellites LAGEOS, LAGEOS II and LARES. This secular precession is
a general relativity effect produced by the gravitomagnetic field of the Earth
generated by its rotation. The effect is a manifestation of spacetime curvature
gene... | [
{
"created": "Fri, 4 Oct 2019 13:17:44 GMT",
"version": "v1"
}
] | 2019-10-07 | [
[
"Lucchesi",
"David M.",
""
],
[
"Visco",
"Massimo",
""
],
[
"Peron",
"Roberto",
""
],
[
"Bassan",
"Massimo",
""
],
[
"Pucacco",
"Giuseppe",
""
],
[
"Pardini",
"Carmen",
""
],
[
"Anselmo",
"Luciano",
""
],... | We present a new measurement of the Lense-Thirring effect on the orbits of the geodetic satellites LAGEOS, LAGEOS II and LARES. This secular precession is a general relativity effect produced by the gravitomagnetic field of the Earth generated by its rotation. The effect is a manifestation of spacetime curvature genera... |
1609.01297 | Shahar Hod | Shahar Hod | Slowly decaying resonances of charged massive scalar fields in the
Reissner-Nordstr\"om black-hole spacetime | 8 pages | Physics Letters B 761, 53 (2016) | 10.1016/j.physletb.2016.08.008 | null | gr-qc astro-ph.HE hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We determine the characteristic timescales associated with the linearized
relaxation dynamics of the composed
Reissner-Nordstr\"om-black-hole-charged-massive-scalar-field system. To that
end, the quasinormal resonant frequencies
$\{\omega_n(\mu,q,M,Q)\}_{n=0}^{n=\infty}$ which characterize the dynamics of a
charged s... | [
{
"created": "Mon, 5 Sep 2016 20:00:12 GMT",
"version": "v1"
}
] | 2017-06-29 | [
[
"Hod",
"Shahar",
""
]
] | We determine the characteristic timescales associated with the linearized relaxation dynamics of the composed Reissner-Nordstr\"om-black-hole-charged-massive-scalar-field system. To that end, the quasinormal resonant frequencies $\{\omega_n(\mu,q,M,Q)\}_{n=0}^{n=\infty}$ which characterize the dynamics of a charged sca... |
gr-qc/9812079 | Shinji Mukohyama | Shinji Mukohyama | The origin of black hole entropy | Latex, 109 pages, Doctoral thesis submitted to Kyoto University | null | null | null | gr-qc hep-th | null | In this thesis properties and the origin of black hole entropy are
investigated from various points of view. First, laws of black hole
thermodynamics are reviewed. In particular, the first and generalized second
laws are investigated in detail. It is in these laws that the black hole
entropy plays key roles. Next, th... | [
{
"created": "Tue, 22 Dec 1998 11:23:43 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Mukohyama",
"Shinji",
""
]
] | In this thesis properties and the origin of black hole entropy are investigated from various points of view. First, laws of black hole thermodynamics are reviewed. In particular, the first and generalized second laws are investigated in detail. It is in these laws that the black hole entropy plays key roles. Next, thre... |
1911.10902 | Shuxun Tian | S. X. Tian and Zong-Hong Zhu | Quantization of the nonstandard propagating gravitational waves in the
cosmological background | 15 pages in the preprint format, accepted for publication in Phys.
Dark Universe | Phys. Dark Universe 27, 100418 (2020) | 10.1016/j.dark.2019.100418 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Detections of gravitational wave (GW) stimulate the discussion of how GWs
propagate in the expanding Universe. General relativity predicts that GWs are
massless and propagate at the speed of light with no extra friction term, which
relates to the attenuation of GWs, while some modified gravities may predict a
differe... | [
{
"created": "Mon, 25 Nov 2019 13:36:28 GMT",
"version": "v1"
}
] | 2019-11-26 | [
[
"Tian",
"S. X.",
""
],
[
"Zhu",
"Zong-Hong",
""
]
] | Detections of gravitational wave (GW) stimulate the discussion of how GWs propagate in the expanding Universe. General relativity predicts that GWs are massless and propagate at the speed of light with no extra friction term, which relates to the attenuation of GWs, while some modified gravities may predict a different... |
2112.08881 | Bruno Arderucio Costa | Bruno Arderucio Costa and George E. A. Matsas | Can quantum mechanics breed negative masses? | Published version | Phys. Rev. D 105, 085016 (2022) | 10.1103/PhysRevD.105.085016 | null | gr-qc hep-th quant-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The Casimir effect realizes the existence of static negative energy densities
in quantum field theory. We establish physically reasonable conditions for the
non-negativity of the total mass of a Casimir apparatus held in equilibrium in
the Minkowski background, irrespective of any condensed matter consideration.
Spec... | [
{
"created": "Thu, 16 Dec 2021 13:54:59 GMT",
"version": "v1"
},
{
"created": "Wed, 30 Mar 2022 13:55:55 GMT",
"version": "v2"
},
{
"created": "Mon, 2 May 2022 21:55:28 GMT",
"version": "v3"
}
] | 2022-05-04 | [
[
"Costa",
"Bruno Arderucio",
""
],
[
"Matsas",
"George E. A.",
""
]
] | The Casimir effect realizes the existence of static negative energy densities in quantum field theory. We establish physically reasonable conditions for the non-negativity of the total mass of a Casimir apparatus held in equilibrium in the Minkowski background, irrespective of any condensed matter consideration. Specif... |
2010.09634 | H\'ector Hern\'andez | H\'ector Hern\'andez, Daniel Su\'arez-Urango, Luis A. N\'u\~nez | Acceptability Conditions and Relativistic Barotropic Equations of State | 25 pages, 7 figures | Eur. Phys. J. C 81, 241 (2021) | 10.1140/epjc/s10052-021-09044-5 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We sketch an algorithm to generate exact anisotropic solutions starting from
a barotropic EoS and setting an ansatz on the metric functions. To illustrate
the method, we use a generalization of the polytropic equation of state
consisting of a combination of a polytrope plus a linear term. Based on this
generalization... | [
{
"created": "Mon, 19 Oct 2020 16:17:26 GMT",
"version": "v1"
},
{
"created": "Thu, 5 Nov 2020 01:16:11 GMT",
"version": "v2"
}
] | 2021-04-21 | [
[
"Hernández",
"Héctor",
""
],
[
"Suárez-Urango",
"Daniel",
""
],
[
"Núñez",
"Luis A.",
""
]
] | We sketch an algorithm to generate exact anisotropic solutions starting from a barotropic EoS and setting an ansatz on the metric functions. To illustrate the method, we use a generalization of the polytropic equation of state consisting of a combination of a polytrope plus a linear term. Based on this generalization, ... |
2305.08919 | Lisa Valerie Drummond | Lisa V. Drummond, Alexandra G. Hanselman, Devin R. Becker, Scott A.
Hughes | Extreme mass-ratio inspiral of a spinning body into a Kerr black hole I:
Evolution along generic trajectories | 23 pages, 8 figures. Note that this posting is superseded by
arXiv:2310.08438, in response to helpful critical referee feedback | null | null | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The study of spinning bodies moving in curved spacetime has relevance to
binary black hole systems with large mass ratios, as well as being of formal
interest. At zeroth order in a binary's mass ratio, the smaller body moves on a
geodesic of the larger body's spacetime. Post-geodesic corrections describing
forces dri... | [
{
"created": "Mon, 15 May 2023 18:00:14 GMT",
"version": "v1"
},
{
"created": "Fri, 20 Oct 2023 00:21:46 GMT",
"version": "v2"
}
] | 2023-10-23 | [
[
"Drummond",
"Lisa V.",
""
],
[
"Hanselman",
"Alexandra G.",
""
],
[
"Becker",
"Devin R.",
""
],
[
"Hughes",
"Scott A.",
""
]
] | The study of spinning bodies moving in curved spacetime has relevance to binary black hole systems with large mass ratios, as well as being of formal interest. At zeroth order in a binary's mass ratio, the smaller body moves on a geodesic of the larger body's spacetime. Post-geodesic corrections describing forces drivi... |
1107.0165 | Nils Andersson | N. Andersson and C. Lopez-Monsalvo | A consistent first-order model for relativistic heat flow | RevTeX, 1 eps Figure | null | 10.1088/0264-9381/28/19/195023 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | This paper revisits the problem of heat conduction in relativistic fluids,
associated with issues concerning both stability and causality. It has long
been known that the problem requires information involving second order
deviations from thermal equilibrium. Basically, any consistent first-order
theory needs to rema... | [
{
"created": "Fri, 1 Jul 2011 09:31:09 GMT",
"version": "v1"
}
] | 2015-05-28 | [
[
"Andersson",
"N.",
""
],
[
"Lopez-Monsalvo",
"C.",
""
]
] | This paper revisits the problem of heat conduction in relativistic fluids, associated with issues concerning both stability and causality. It has long been known that the problem requires information involving second order deviations from thermal equilibrium. Basically, any consistent first-order theory needs to remain... |
1803.01862 | Fiona McCarthy | Fiona McCarthy, David Kubiznak, Robert B. Mann | Dilatonic Imprints on Exact Gravitational Wave Signatures | 7 pages, 5 figures. v2: some small changes and corrections | Phys. Rev. D 97, 104025 (2018) | 10.1103/PhysRevD.97.104025 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | By employing the moduli space approximation, we analytically calculate the
gravitational wave signatures emitted upon the merger of two extremally charged
dilatonic black holes. We probe several values of the dilatonic coupling
constant $a$, and find significant departures from the Einstein--Maxwell
($a=0$) counterpa... | [
{
"created": "Mon, 5 Mar 2018 19:00:02 GMT",
"version": "v1"
},
{
"created": "Mon, 21 May 2018 17:16:56 GMT",
"version": "v2"
}
] | 2018-05-23 | [
[
"McCarthy",
"Fiona",
""
],
[
"Kubiznak",
"David",
""
],
[
"Mann",
"Robert B.",
""
]
] | By employing the moduli space approximation, we analytically calculate the gravitational wave signatures emitted upon the merger of two extremally charged dilatonic black holes. We probe several values of the dilatonic coupling constant $a$, and find significant departures from the Einstein--Maxwell ($a=0$) counterpart... |
2005.11179 | P. A. Gonzalez | Almendra Arag\'on, P. A. Gonz\'alez, Eleftherios Papantonopoulos and
Yerko V\'asquez | Quasinormal modes and their anomalous behavior for black holes in $f(R)$
gravity | New version | null | 10.1140/epjc/s10052-021-09193-7 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the propagation of scalar fields in the background of an
asymptotically de-Sitter black hole solution in $f(R)$ gravity. The aim of this
work is to analyze in modified theories of gravity the existence of an
anomalous decay rate of the quasinormal modes (QNMs) of a massive scalar field
which was recently rep... | [
{
"created": "Wed, 20 May 2020 22:15:35 GMT",
"version": "v1"
},
{
"created": "Mon, 22 Mar 2021 16:56:06 GMT",
"version": "v2"
}
] | 2021-05-26 | [
[
"Aragón",
"Almendra",
""
],
[
"González",
"P. A.",
""
],
[
"Papantonopoulos",
"Eleftherios",
""
],
[
"Vásquez",
"Yerko",
""
]
] | We study the propagation of scalar fields in the background of an asymptotically de-Sitter black hole solution in $f(R)$ gravity. The aim of this work is to analyze in modified theories of gravity the existence of an anomalous decay rate of the quasinormal modes (QNMs) of a massive scalar field which was recently repor... |
2105.01831 | Angel Garcia-Chung | Angel Garcia-Chung, Benito A. Ju\'arez-Aubry and Daniel Sudarsky | What happens once an accelerating observer has detected a Rindler
particle? | 27 pages | null | 10.1103/PhysRevD.108.025002 | null | gr-qc hep-th quant-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In a seminal paper, Unruh and Wald found that the detection of a right
Rindler particle by a linearly uniformly accelerated detector coupled to a
Klein-Gordon field in the Minkowski vacuum leads to the creation of a Minkowski
particle from the inertial viewpoint. In this paper, we revisit the framework
studied by Unr... | [
{
"created": "Wed, 5 May 2021 02:04:53 GMT",
"version": "v1"
},
{
"created": "Mon, 25 Apr 2022 14:54:08 GMT",
"version": "v2"
},
{
"created": "Tue, 6 Sep 2022 11:28:24 GMT",
"version": "v3"
}
] | 2023-07-19 | [
[
"Garcia-Chung",
"Angel",
""
],
[
"Juárez-Aubry",
"Benito A.",
""
],
[
"Sudarsky",
"Daniel",
""
]
] | In a seminal paper, Unruh and Wald found that the detection of a right Rindler particle by a linearly uniformly accelerated detector coupled to a Klein-Gordon field in the Minkowski vacuum leads to the creation of a Minkowski particle from the inertial viewpoint. In this paper, we revisit the framework studied by Unruh... |
gr-qc/0402010 | Edward Anderson | E. Anderson | Geometry, EFE's and Foundations for Brane Cosmology | 2 pages, to appear in Proceedings of Rio de Janeiro 2003 Marcel
Grossmann Meeting | null | 10.1142/9789812704030_0179 | null | gr-qc | null | I argue that GR Cauchy and Initial Value Problem mathematics is a valuable
source of ideas for braneworlds based on higher-dimensional Einstein field
equations.
| [
{
"created": "Mon, 2 Feb 2004 23:36:36 GMT",
"version": "v1"
}
] | 2016-11-09 | [
[
"Anderson",
"E.",
""
]
] | I argue that GR Cauchy and Initial Value Problem mathematics is a valuable source of ideas for braneworlds based on higher-dimensional Einstein field equations. |
gr-qc/0504079 | Maurizio Gasperini | N. Bonasia and M. Gasperini | Response of the common mode of interferometric detectors to a stochastic
background of massive scalar radiation | 8 pages, 4 figures, revtex | Phys.Rev. D71 (2005) 104020 | 10.1103/PhysRevD.71.104020 | BA-TH/05-511 | gr-qc astro-ph hep-ph | null | We compute the angular pattern and the overlap reduction functions for the
geodesic and non-geodesic response of the common mode of two interferometers
interacting with a stochastic, massive scalar background. We also discuss the
possible overlap between common and differential modes. We find that the
cross-correlate... | [
{
"created": "Mon, 18 Apr 2005 18:50:48 GMT",
"version": "v1"
}
] | 2009-11-11 | [
[
"Bonasia",
"N.",
""
],
[
"Gasperini",
"M.",
""
]
] | We compute the angular pattern and the overlap reduction functions for the geodesic and non-geodesic response of the common mode of two interferometers interacting with a stochastic, massive scalar background. We also discuss the possible overlap between common and differential modes. We find that the cross-correlated ... |
1907.02869 | Stefano Foffa | Stefano Foffa and Riccardo Sturani | Hereditary Terms at Next-To-Leading Order in Two-Body Gravitational
Dynamics | 24 pages, 1 figure; footnote added at page 5 | Phys. Rev. D 101, 064033 (2020) | 10.1103/PhysRevD.101.064033 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In the context of the two-body problem in General Relativity, hereditary
terms in the long range gravitational field depend on the history rather than
the instantaneous state of the source at retarded time. We compute the next-to
leading effects of such hereditary terms, that comprise tail and memory, on the
two-body... | [
{
"created": "Fri, 5 Jul 2019 14:48:36 GMT",
"version": "v1"
},
{
"created": "Fri, 12 Jul 2019 15:37:19 GMT",
"version": "v2"
},
{
"created": "Thu, 19 Mar 2020 20:49:39 GMT",
"version": "v3"
},
{
"created": "Fri, 8 Jan 2021 17:26:53 GMT",
"version": "v4"
},
{
"cre... | 2021-06-10 | [
[
"Foffa",
"Stefano",
""
],
[
"Sturani",
"Riccardo",
""
]
] | In the context of the two-body problem in General Relativity, hereditary terms in the long range gravitational field depend on the history rather than the instantaneous state of the source at retarded time. We compute the next-to leading effects of such hereditary terms, that comprise tail and memory, on the two-body d... |
2401.15237 | Soumya Mohanty | Raghav Girgaonkar, Soumya D. Mohanty | Glitch veto based on unphysical gravitational wave binary inspiral
templates | Accepted version; Fig.2 replaced with corrected version; 18 pages, 12
figures | Physical Review D, vol. 110, 023037 (2024) | 10.1103/PhysRevD.110.023037 | null | gr-qc astro-ph.IM | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Transient signals arising from instrumental or environmental factors,
commonly referred to as glitches, constitute the predominant background of
false alarms in gravitational wave searches with ground-based detectors.
Therefore, effective data analysis methods for vetoing glitch-induced false
alarms are crucial to en... | [
{
"created": "Fri, 26 Jan 2024 23:08:37 GMT",
"version": "v1"
},
{
"created": "Wed, 26 Jun 2024 04:20:46 GMT",
"version": "v2"
},
{
"created": "Sat, 27 Jul 2024 14:16:21 GMT",
"version": "v3"
}
] | 2024-07-30 | [
[
"Girgaonkar",
"Raghav",
""
],
[
"Mohanty",
"Soumya D.",
""
]
] | Transient signals arising from instrumental or environmental factors, commonly referred to as glitches, constitute the predominant background of false alarms in gravitational wave searches with ground-based detectors. Therefore, effective data analysis methods for vetoing glitch-induced false alarms are crucial to enha... |
1804.02193 | Dmitry Chirkov | Dmitry Chirkov, Alex Giacomini, Alexey Toporensky | Dynamic compactification with stabilized extra dimensions in cubic
Lovelock gravity | 12 pages, 5 figures | null | 10.1007/s10714-018-2417-x | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper the dynamic compactification in Lovelock gravity with a cubic
term is studied. The ansatz will be of space-time where the three dimensional
space and the extra dimensions are constant curvature manifolds with
independent scale factors. The numerical analysis shows that there exist a
phenomenologically r... | [
{
"created": "Fri, 6 Apr 2018 10:33:40 GMT",
"version": "v1"
},
{
"created": "Fri, 13 Jul 2018 07:50:34 GMT",
"version": "v2"
}
] | 2018-07-16 | [
[
"Chirkov",
"Dmitry",
""
],
[
"Giacomini",
"Alex",
""
],
[
"Toporensky",
"Alexey",
""
]
] | In this paper the dynamic compactification in Lovelock gravity with a cubic term is studied. The ansatz will be of space-time where the three dimensional space and the extra dimensions are constant curvature manifolds with independent scale factors. The numerical analysis shows that there exist a phenomenologically rea... |
2211.11420 | Maria Mylova | Maria Mylova, Jackson Levi Said, Emmanuel N. Saridakis | General Effective Field Theory of Teleparallel Gravity | 17 pages, comments are welcome | Classical and Quantum Gravity 2023 | 10.1088/1361-6382/accccc | 40 125002 | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We construct the Effective Field Theory (EFT) of the teleparallel equivalent
of general relativity (TEGR). Firstly, we present the necessary field
redefinitions of the scalar field and the tetrads. Then we provide all the
terms at next-to-leading-order, containing the torsion tensor and its
derivatives, and derivativ... | [
{
"created": "Mon, 21 Nov 2022 13:07:43 GMT",
"version": "v1"
},
{
"created": "Mon, 1 May 2023 02:59:38 GMT",
"version": "v2"
}
] | 2023-05-12 | [
[
"Mylova",
"Maria",
""
],
[
"Said",
"Jackson Levi",
""
],
[
"Saridakis",
"Emmanuel N.",
""
]
] | We construct the Effective Field Theory (EFT) of the teleparallel equivalent of general relativity (TEGR). Firstly, we present the necessary field redefinitions of the scalar field and the tetrads. Then we provide all the terms at next-to-leading-order, containing the torsion tensor and its derivatives, and derivatives... |
2309.12096 | Kei-Ichi Maeda | Kei-ichi Maeda, Priti Gupta, Hirotada Okawa | Chaotic von Zeipel-Lidov-Kozai Oscillations of Binary System around
Rotating Supermassive Black Hole | 32 pages, 18 figures. arXiv admin note: substantial text overlap with
arXiv:2303.16553 | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper, we investigate the dynamics of a binary system that orbits a
rotating supermassive black hole. Our approach employs Fermi-Walker transport
to construct a local inertial reference frame, and to set up a Newtonian binary
system. We consider a scenario in which a circular geodesic observer is
positioned a... | [
{
"created": "Thu, 21 Sep 2023 14:13:06 GMT",
"version": "v1"
},
{
"created": "Tue, 3 Oct 2023 05:28:25 GMT",
"version": "v2"
}
] | 2023-10-04 | [
[
"Maeda",
"Kei-ichi",
""
],
[
"Gupta",
"Priti",
""
],
[
"Okawa",
"Hirotada",
""
]
] | In this paper, we investigate the dynamics of a binary system that orbits a rotating supermassive black hole. Our approach employs Fermi-Walker transport to construct a local inertial reference frame, and to set up a Newtonian binary system. We consider a scenario in which a circular geodesic observer is positioned aro... |
1907.02424 | Tim Dietrich | Ka Wa Tsang, Tim Dietrich, Chris Van Den Broeck | Modeling the postmerger gravitational wave signal and extracting binary
properties from future binary neutron star detections | null | Phys. Rev. D 100, 044047 (2019) | 10.1103/PhysRevD.100.044047 | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Gravitational wave astronomy has established its role in measuring the
equation of state governing cold supranuclear matter. To date and in the near
future, gravitational wave measurements from neutron star binaries are likely
to be restricted to the inspiral. However, future upgrades and the next
generation of gravi... | [
{
"created": "Thu, 4 Jul 2019 14:32:56 GMT",
"version": "v1"
}
] | 2019-09-04 | [
[
"Tsang",
"Ka Wa",
""
],
[
"Dietrich",
"Tim",
""
],
[
"Broeck",
"Chris Van Den",
""
]
] | Gravitational wave astronomy has established its role in measuring the equation of state governing cold supranuclear matter. To date and in the near future, gravitational wave measurements from neutron star binaries are likely to be restricted to the inspiral. However, future upgrades and the next generation of gravita... |
gr-qc/0008062 | D. V. Nesterov | A.O. Barvinsky and D.V. Nesterov | Effective equations in quantum cosmology | 33 pages, LaTeX2e | Nucl.Phys. B608 (2001) 333-374 | 10.1016/S0550-3213(01)00279-6 | FIAN/TD/13/00 | gr-qc hep-th physics.space-ph | null | We develop a general framework for effective equations of expectation values
in quantum cosmology and pose for them the quantum Cauchy problem with
no-boundary and tunneling wavefunctions. Cosmological configuration space is
decomposed into two sectors that give qualitatively different contributions to
the radiation ... | [
{
"created": "Fri, 25 Aug 2000 04:59:07 GMT",
"version": "v1"
}
] | 2009-10-31 | [
[
"Barvinsky",
"A. O.",
""
],
[
"Nesterov",
"D. V.",
""
]
] | We develop a general framework for effective equations of expectation values in quantum cosmology and pose for them the quantum Cauchy problem with no-boundary and tunneling wavefunctions. Cosmological configuration space is decomposed into two sectors that give qualitatively different contributions to the radiation cu... |
gr-qc/9712057 | Takahiro Tanaka | Yasushi Mino, Misao Sasaki, Masaru Shibata, Hideyuki Tagoshi and
Takahiro Tanaka | Black Hole Perturbation | 120 pages ptptex file. To appear in Progress of Theoretical Physics
Supplement No.128 (1997) `Perturbative and Numerical Approaches to
Gravitational Radiation' | Prog.Theor.Phys.Suppl.128:1-121,1997 | 10.1143/PTPS.128.1 | null | gr-qc | null | We present analytic calculations of gravitational waves from a particle
orbiting a black hole. We first review the Teukolsky formalism for dealing with
the gravitational perturbation of a black hole. Then we develop a systematic
method to calculate higher order post-Newtonian corrections to the
gravitational waves em... | [
{
"created": "Fri, 12 Dec 1997 09:46:08 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Mino",
"Yasushi",
""
],
[
"Sasaki",
"Misao",
""
],
[
"Shibata",
"Masaru",
""
],
[
"Tagoshi",
"Hideyuki",
""
],
[
"Tanaka",
"Takahiro",
""
]
] | We present analytic calculations of gravitational waves from a particle orbiting a black hole. We first review the Teukolsky formalism for dealing with the gravitational perturbation of a black hole. Then we develop a systematic method to calculate higher order post-Newtonian corrections to the gravitational waves emit... |
1201.0526 | Eduardo Guendelman I | Eduardo Guendelman and Mahary Vasihoun | Fully Explorable Horned Particles Hiding Charge | The new version has been accepted for publication in Classical and
Quantum Gravity. Title changed to "Fully Explorable Horned Particles Hiding
Charge". Horned Particles terminology is used now instead of "wormholes" to
dscribe the solutions here. arXiv admin note: text overlap with
arXiv:1108.3735 | null | 10.1088/0264-9381/29/9/095004 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The charge-hiding effect by a horned particle, which was studied for the case
where gravity/gauge-field system is self-consistently interacting with a
charged lightlike brane (LLB) as a matter source, is now studied for the case
of a time like brane. From the demand that no surfaces of infinite coordinate
time redshi... | [
{
"created": "Mon, 2 Jan 2012 20:03:26 GMT",
"version": "v1"
},
{
"created": "Wed, 25 Jan 2012 14:30:08 GMT",
"version": "v2"
},
{
"created": "Mon, 26 Mar 2012 21:55:08 GMT",
"version": "v3"
}
] | 2015-06-03 | [
[
"Guendelman",
"Eduardo",
""
],
[
"Vasihoun",
"Mahary",
""
]
] | The charge-hiding effect by a horned particle, which was studied for the case where gravity/gauge-field system is self-consistently interacting with a charged lightlike brane (LLB) as a matter source, is now studied for the case of a time like brane. From the demand that no surfaces of infinite coordinate time redshift... |
1407.1265 | Jing-Zhao Qi | Jing-Zhao Qi, Ming-Jian Zhang, Wen-Biao Liu | Observational constraint on the varying speed of light theory | null | Phys. Rev. D 90, 063526(2014) | 10.1103/PhysRevD.90.063526 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The varying speed of light (VSL) theory is controversial. It succeeds in
explaining some cosmological problems, but on the other hand it is excluded by
mainstream physics because it will shake the foundation of physics. In the
present paper, we devote ourselves to test whether the speed of light is
varying from the o... | [
{
"created": "Fri, 4 Jul 2014 15:56:20 GMT",
"version": "v1"
},
{
"created": "Tue, 7 Oct 2014 05:47:43 GMT",
"version": "v2"
}
] | 2014-10-08 | [
[
"Qi",
"Jing-Zhao",
""
],
[
"Zhang",
"Ming-Jian",
""
],
[
"Liu",
"Wen-Biao",
""
]
] | The varying speed of light (VSL) theory is controversial. It succeeds in explaining some cosmological problems, but on the other hand it is excluded by mainstream physics because it will shake the foundation of physics. In the present paper, we devote ourselves to test whether the speed of light is varying from the obs... |
gr-qc/0012058 | Ezra T. Newman | Simonetta Frittelli, Carlos Kozameh, Ezra T. Newman | Differential Geometry from Differential Equations | 37 pages, revised version with clarifications | Commun.Math.Phys. 223 (2001) 383-408 | 10.1007/s002200100548 | null | gr-qc | null | We first show how, from the general 3rd order ODE of the form
z'''=F(z,z',z'',s), one can construct a natural Lorentzian conformal metric on
the four-dimensional space (z,z',z'',s). When the function F(z,z',z'',s)
satisfies a special differential condition of the form, U[F]=0, the conformal
metric possesses a conform... | [
{
"created": "Fri, 15 Dec 2000 20:12:08 GMT",
"version": "v1"
},
{
"created": "Thu, 3 May 2001 18:05:20 GMT",
"version": "v2"
}
] | 2009-10-31 | [
[
"Frittelli",
"Simonetta",
""
],
[
"Kozameh",
"Carlos",
""
],
[
"Newman",
"Ezra T.",
""
]
] | We first show how, from the general 3rd order ODE of the form z'''=F(z,z',z'',s), one can construct a natural Lorentzian conformal metric on the four-dimensional space (z,z',z'',s). When the function F(z,z',z'',s) satisfies a special differential condition of the form, U[F]=0, the conformal metric possesses a conformal... |
1503.08714 | Abdul Jawad | Ines. G. Salako and Abdul Jawad | Superresonance Phenomenon from Acoustic Black Holes in Neo-Newtonian
theory | 9 pages; 1 figure. arXiv admin note: text overlap with
arXiv:1101.2891 | Int. J. Mod. Phys. D 25(2016)1650055 | 10.1142/S0218271816500553 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We explore the possibility of the acoustic analogue of a super-radiance like
phenomenon, i.e., the amplification of a sound wave by reflection from the
ergo-region of a rotating acoustic black hole in the fluid draining bathtub
model in the presence of the pressure be amplified or reduced in agreement with
the value ... | [
{
"created": "Fri, 27 Mar 2015 14:35:25 GMT",
"version": "v1"
},
{
"created": "Thu, 14 Apr 2016 11:26:14 GMT",
"version": "v2"
}
] | 2016-04-15 | [
[
"Salako",
"Ines. G.",
""
],
[
"Jawad",
"Abdul",
""
]
] | We explore the possibility of the acoustic analogue of a super-radiance like phenomenon, i.e., the amplification of a sound wave by reflection from the ergo-region of a rotating acoustic black hole in the fluid draining bathtub model in the presence of the pressure be amplified or reduced in agreement with the value of... |
2312.15870 | Vyacheslav Dokuchaev | Vyacheslav Ivanovich Dokuchaev and Konstantin Eduardovich Prokopev | Generalized Einstein-Rosen bridge inside black holes | 9 pages, 7 figures, corrected typos, published version | Zh.Exp.Teor.Fiz. Vol. 165, 800-806 (2024) | 10.31857/S0044451024060063 | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We generalize the notion of Einstein-Rosen bridge by defining it as a
space-like connection between two universes with regions of asymptotically
minkowskian space-time infinities. The corresponding symmetry and asymmetry
properties of the generalized Einstein-Rosen bridge are considered at the cases
of Reissner-Nords... | [
{
"created": "Tue, 26 Dec 2023 03:34:36 GMT",
"version": "v1"
},
{
"created": "Mon, 15 Jan 2024 04:22:53 GMT",
"version": "v2"
},
{
"created": "Fri, 3 May 2024 16:52:04 GMT",
"version": "v3"
},
{
"created": "Mon, 5 Aug 2024 09:47:07 GMT",
"version": "v4"
}
] | 2024-08-06 | [
[
"Dokuchaev",
"Vyacheslav Ivanovich",
""
],
[
"Prokopev",
"Konstantin Eduardovich",
""
]
] | We generalize the notion of Einstein-Rosen bridge by defining it as a space-like connection between two universes with regions of asymptotically minkowskian space-time infinities. The corresponding symmetry and asymmetry properties of the generalized Einstein-Rosen bridge are considered at the cases of Reissner-Nordstr... |
gr-qc/0608056 | Dr. Anirudh Pradhan | Anirudh Pradhan, D. S. Chauhan | A New Class of LRS Bianchi Type-I Cosmological Models in Lyra's Manifold | 12 pages, 3 figures | RAPC 8:179-190,2009 | null | null | gr-qc | null | LRS Bianchi type-I models have been studied in the cosmological theory based
on Lyra's geometry. A new class of exact solutions has been obtained by
considering a time dependent displacement field for variable deceleration
parameter models of the universe. We have compared our models with those of
Einstein's field th... | [
{
"created": "Thu, 10 Aug 2006 13:02:25 GMT",
"version": "v1"
}
] | 2010-05-28 | [
[
"Pradhan",
"Anirudh",
""
],
[
"Chauhan",
"D. S.",
""
]
] | LRS Bianchi type-I models have been studied in the cosmological theory based on Lyra's geometry. A new class of exact solutions has been obtained by considering a time dependent displacement field for variable deceleration parameter models of the universe. We have compared our models with those of Einstein's field theo... |
gr-qc/0702136 | Giovanni Montani | Giovanni Montani | Formulation of an Evolutionary Quantum Cosmology | 5 pages, proceedings od the first Stueckelberg Workshop, to appear on
``Il Nuovo Cimento B'' | Nuovo Cim.B122:157-161,2007 | 10.1393/ncb/i2007-10352-4 | null | gr-qc | null | We provide an evolutionary formulation of a generic quantum cosmology. Our
starting point is the request that all quantities living on the slicing have to
be 3-tensors. This statement, when applied to the lapse function and the shift
vector, yields the no longer vanishing behavior of the super-Hamiltonian. Then,
we p... | [
{
"created": "Mon, 26 Feb 2007 13:31:19 GMT",
"version": "v1"
}
] | 2010-11-11 | [
[
"Montani",
"Giovanni",
""
]
] | We provide an evolutionary formulation of a generic quantum cosmology. Our starting point is the request that all quantities living on the slicing have to be 3-tensors. This statement, when applied to the lapse function and the shift vector, yields the no longer vanishing behavior of the super-Hamiltonian. Then, we pro... |
1811.02648 | Daniel Charbul\'ak | Daniel Charbul\'ak and Zden\v{e}k Stuchl\'ik | Spherical photon orbits in the field of Kerr naked singularities | 28 pages, 64 figures | Charbul\'ak, D. & Stuchl\'ik, Z. Eur. Phys. J. C (2018) 78: 879.
https://doi.org/10.1140/epjc/s10052-018-6336-5 | 10.1140/epjc/s10052-018-6336-5 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | For the Kerr naked singularity (KNS) spacetimes, we study properties of
spherical photon orbits (SPOs) confined to constant Boyer-Lindquist radius r.
Some new features of the SPOs are found, having no counterparts in the Kerr
black hole (KBH) spacetimes, especially stable orbits that could be pure
prograde/retrograde... | [
{
"created": "Tue, 6 Nov 2018 21:04:20 GMT",
"version": "v1"
}
] | 2018-11-08 | [
[
"Charbulák",
"Daniel",
""
],
[
"Stuchlík",
"Zdeněk",
""
]
] | For the Kerr naked singularity (KNS) spacetimes, we study properties of spherical photon orbits (SPOs) confined to constant Boyer-Lindquist radius r. Some new features of the SPOs are found, having no counterparts in the Kerr black hole (KBH) spacetimes, especially stable orbits that could be pure prograde/retrograde, ... |
gr-qc/0610077 | Zhao Ren | Zhao Ren, Li Huaifan, Zhang Shengli | Quantum spectrum and statistic entropy of black hole | 7 pages | null | null | null | gr-qc | null | Taking the horizon surface of the black hole as a compact membrane and
solving the oscillation equation of this membrane by Klein-Gordon equation, we
derive the frequencies of oscillation modes of the horizon surface, which are
proportional to the radiation temperature of the black hole. However, the
frequencies of o... | [
{
"created": "Mon, 16 Oct 2006 01:36:26 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Ren",
"Zhao",
""
],
[
"Huaifan",
"Li",
""
],
[
"Shengli",
"Zhang",
""
]
] | Taking the horizon surface of the black hole as a compact membrane and solving the oscillation equation of this membrane by Klein-Gordon equation, we derive the frequencies of oscillation modes of the horizon surface, which are proportional to the radiation temperature of the black hole. However, the frequencies of osc... |
gr-qc/9808015 | null | David Matravers | Fractal local galaxy number counts may imply strong bias | Minor correction to abstract and two references corrected. To appear
in the Proceedings of the International Seminar on Mathematical Cosmology,
Potsdam, 30 March-4 April 1998, ed. M. Rainer and H-J Schmidt, World
Scientific PC. 7 pages LaTeX, sproc style, no figures | null | null | null | gr-qc | null | Exact Tolman solutions are used to analyse the implications if the galactic
number has a fractal form out to a distance of about 150 Mpc in a universe
which is homogeneous on the large scale. It is concluded that such a model
requires either a non-linear Hubble law or a very low density if galaxies trace
the total ma... | [
{
"created": "Wed, 5 Aug 1998 14:39:23 GMT",
"version": "v1"
},
{
"created": "Fri, 25 Sep 1998 11:14:37 GMT",
"version": "v2"
}
] | 2007-05-23 | [
[
"Matravers",
"David",
""
]
] | Exact Tolman solutions are used to analyse the implications if the galactic number has a fractal form out to a distance of about 150 Mpc in a universe which is homogeneous on the large scale. It is concluded that such a model requires either a non-linear Hubble law or a very low density if galaxies trace the total matt... |
gr-qc/9710131 | J. E. Nelson | V.Moncrief, J.E.Nelson | Constants of the Motion and the Quantum Modular Group in (2+1) -
Dimensional Gravity | 4 pages Latex, uses mprocl.sty. Talk given in the Canonical Quantum
Gravity session at the Eighth Marcel Grossmann meeting. Jerusalem, June 1997 | null | null | null | gr-qc | null | Constants of motion are calculated for 2+1 dimensional gravity with topology
R \times T^2 and negative cosmological constant. Certain linear combinations of
them satisfy the anti - de Sitter algebra so(2,2) in either ADM or holonomy
variables. Quantisation is straightforward in terms of the holonomy parameters,
and t... | [
{
"created": "Thu, 30 Oct 1997 13:08:57 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Moncrief",
"V.",
""
],
[
"Nelson",
"J. E.",
""
]
] | Constants of motion are calculated for 2+1 dimensional gravity with topology R \times T^2 and negative cosmological constant. Certain linear combinations of them satisfy the anti - de Sitter algebra so(2,2) in either ADM or holonomy variables. Quantisation is straightforward in terms of the holonomy parameters, and the... |
2011.00856 | Shyam Das | Piyali Bhar, Shyam Das and Bikram Keshari Parida | Compact stellar model in Tolman space-time in presence of pressure
anisotropy | 20 pages, 14 figures, Submitted in Eur. Phys. J. C | null | null | null | gr-qc astro-ph.HE | http://creativecommons.org/licenses/by/4.0/ | In this paper, we develop a new relativistic compact stellar model for a
spherically symmetric anisotropic matter distribution. The model has been
obtained through generating a new class of solutions by invoking the Tolman
{\em ansatz} for one of the metric potentials $g_{rr}$ and a physically
reasonable selective pr... | [
{
"created": "Mon, 2 Nov 2020 09:57:31 GMT",
"version": "v1"
},
{
"created": "Tue, 24 Nov 2020 02:29:14 GMT",
"version": "v2"
}
] | 2020-11-25 | [
[
"Bhar",
"Piyali",
""
],
[
"Das",
"Shyam",
""
],
[
"Parida",
"Bikram Keshari",
""
]
] | In this paper, we develop a new relativistic compact stellar model for a spherically symmetric anisotropic matter distribution. The model has been obtained through generating a new class of solutions by invoking the Tolman {\em ansatz} for one of the metric potentials $g_{rr}$ and a physically reasonable selective prof... |
1708.07006 | S. I. Kruglov | S.I. Kruglov | Nonlinear electrodynamics and magnetic black holes | 14 pages, 6 figures, 2 tables | Annalen Phys. 529 (2017) no.8, 1700073 | 10.1002/andp.201700073 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A model of nonlinear electrodynamics with two parameters, coupled with
general relativity, is investigated. We study the magnetized black hole and
obtain solutions. The asymptotic of the metric and mass functions at
$r\rightarrow\infty$ and $r\rightarrow 0$, and corrections to the
Reissner-Nordstr\"{o}m solution are ... | [
{
"created": "Tue, 22 Aug 2017 12:27:47 GMT",
"version": "v1"
}
] | 2017-08-24 | [
[
"Kruglov",
"S. I.",
""
]
] | A model of nonlinear electrodynamics with two parameters, coupled with general relativity, is investigated. We study the magnetized black hole and obtain solutions. The asymptotic of the metric and mass functions at $r\rightarrow\infty$ and $r\rightarrow 0$, and corrections to the Reissner-Nordstr\"{o}m solution are fo... |
gr-qc/9703004 | Guglielmo Tino | B. Preziosi, G.M. Tino | Possible tests of curvature effects in weak gravitational fields | 13 pages, Latex | Gen.Rel.Grav. 30 (1998) 173-193 | 10.1023/A:1018887009866 | Napoli University preprint DSF-11/97 1997 | gr-qc | null | We analyze the possibility of detecting, with optical methods, particle and
photon trajectories predicted by general relativity for a weak
spherically-symmetric gravitational field. We discuss the required
sensitivities and the possibility of performing specific experiments on the
Earth.
| [
{
"created": "Fri, 28 Feb 1997 10:25:25 GMT",
"version": "v1"
}
] | 2015-06-25 | [
[
"Preziosi",
"B.",
""
],
[
"Tino",
"G. M.",
""
]
] | We analyze the possibility of detecting, with optical methods, particle and photon trajectories predicted by general relativity for a weak spherically-symmetric gravitational field. We discuss the required sensitivities and the possibility of performing specific experiments on the Earth. |
1805.04818 | Tiberiu Harko | Man Kwong Mak, Chun Sing Leung, Tiberiu Harko | Computation of the general relativistic perihelion precession and of
light deflection via the Laplace-Adomian Decomposition Method | 33 pages, 4 figures, accepted for publication in Advances in High
Energy Physics | Advances in High Energy Physics Volume 2018, Article ID 7093592,
2018 | 10.1155/2018/7093592 | null | gr-qc astro-ph.HE hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the equations of motion of the massive and massless particles in the
Schwarzschild geometry of general relativity by using the Laplace-Adomian
Decomposition Method, which proved to be extremely successful in obtaining
series solutions to a wide range of strongly nonlinear differential and
integral equations.... | [
{
"created": "Sun, 13 May 2018 04:46:25 GMT",
"version": "v1"
}
] | 2018-07-17 | [
[
"Mak",
"Man Kwong",
""
],
[
"Leung",
"Chun Sing",
""
],
[
"Harko",
"Tiberiu",
""
]
] | We study the equations of motion of the massive and massless particles in the Schwarzschild geometry of general relativity by using the Laplace-Adomian Decomposition Method, which proved to be extremely successful in obtaining series solutions to a wide range of strongly nonlinear differential and integral equations. A... |
0905.0300 | Lorenzo Iorio | Lorenzo Iorio | Recent Attempts to Measure the General Relativistic Lense-Thirring
Effect with Natural and Artificial Bodies in the Solar System | LaTex2e, 31 pages, 1 figure, 14 tables, 115 references. Invited
contribution to the Fifth International School on Field Theory and
Gravitation, Cuiaba', Mato Grosso, MT, Brasil, April 20-24 2009 | PoS ISFTG:017,2009 | null | null | gr-qc astro-ph.EP astro-ph.SR physics.geo-ph physics.space-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | According to general relativity, a spinning body of mass M and angular
momentum S, like a star or a planet, generates a gravitomagnetic field which
induces, among other phenomena, also the Lense-Thirring effect, i.e. secular
precessions of the path of a test particle orbiting it. Direct and indisputable
tests of such... | [
{
"created": "Mon, 4 May 2009 12:52:50 GMT",
"version": "v1"
},
{
"created": "Mon, 30 Nov 2009 12:45:15 GMT",
"version": "v2"
}
] | 2009-11-30 | [
[
"Iorio",
"Lorenzo",
""
]
] | According to general relativity, a spinning body of mass M and angular momentum S, like a star or a planet, generates a gravitomagnetic field which induces, among other phenomena, also the Lense-Thirring effect, i.e. secular precessions of the path of a test particle orbiting it. Direct and indisputable tests of such a... |
1801.03771 | Simone Speziale | Giorgio Sarno, Simone Speziale, Gabriele V. Stagno | 2-vertex Lorentzian Spin Foam Amplitudes for Dipole Transitions | 27 pages + appendix, many figures. v2: one more numerical result,
plus minor amendments | null | 10.1007/s10714-018-2360-x | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We compute transition amplitudes between two spin networks with dipole
graphs, using the Lorentzian EPRL model with up to two (non-simplicial)
vertices. We find power-law decreasing amplitudes in the large spin limit,
decreasing faster as the complexity of the foam increases. There are no
oscillations nor asymptotic ... | [
{
"created": "Thu, 11 Jan 2018 14:20:49 GMT",
"version": "v1"
},
{
"created": "Mon, 19 Mar 2018 20:03:25 GMT",
"version": "v2"
}
] | 2018-04-11 | [
[
"Sarno",
"Giorgio",
""
],
[
"Speziale",
"Simone",
""
],
[
"Stagno",
"Gabriele V.",
""
]
] | We compute transition amplitudes between two spin networks with dipole graphs, using the Lorentzian EPRL model with up to two (non-simplicial) vertices. We find power-law decreasing amplitudes in the large spin limit, decreasing faster as the complexity of the foam increases. There are no oscillations nor asymptotic Re... |
0705.2199 | Kuiroukidis | A Kuiroukidis, K Kleidis and D B Papadopoulos | Alfven modes driven non-linearly by metric perturbations in anisotropic
magnetized cosmologies | 7 pages, RevTex, 3 figures ps, accepted for publication to IJMPA | Int.J.Mod.Phys.A22:2197-2209,2007 | 10.1142/S0217751X07036415 | null | gr-qc | null | We consider anisotropic magnetized cosmologies filled with conductive plasma
fluid and study the implications of metric perturbations that propagate
parallel to the ambient magnetic field. It is known that in the first order
(linear) approximation with respect to the amplitude of the perturbations no
electric field a... | [
{
"created": "Tue, 15 May 2007 17:49:41 GMT",
"version": "v1"
}
] | 2010-10-27 | [
[
"Kuiroukidis",
"A",
""
],
[
"Kleidis",
"K",
""
],
[
"Papadopoulos",
"D B",
""
]
] | We consider anisotropic magnetized cosmologies filled with conductive plasma fluid and study the implications of metric perturbations that propagate parallel to the ambient magnetic field. It is known that in the first order (linear) approximation with respect to the amplitude of the perturbations no electric field and... |
1807.08767 | David Nichols | David A. Nichols | Center-of-mass angular momentum and memory effect in asymptotically flat
spacetimes | v2: 26 pages; updated to match version published in Phys. Rev. D | Phys. Rev. D 98, 064032 (2018) | 10.1103/PhysRevD.98.064032 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Gravitational-wave (GW) memory effects are constant changes in the GW strain
and its time integrals, which are closely connected to changes in the charges
that characterize asymptotically flat spacetimes. The first GW memory effect
discovered was a lasting change in the GW strain. It can occur when GWs or
massless fi... | [
{
"created": "Mon, 23 Jul 2018 18:00:31 GMT",
"version": "v1"
},
{
"created": "Tue, 18 Sep 2018 09:57:18 GMT",
"version": "v2"
}
] | 2018-09-19 | [
[
"Nichols",
"David A.",
""
]
] | Gravitational-wave (GW) memory effects are constant changes in the GW strain and its time integrals, which are closely connected to changes in the charges that characterize asymptotically flat spacetimes. The first GW memory effect discovered was a lasting change in the GW strain. It can occur when GWs or massless fiel... |
1609.01536 | Bal\'azs Mik\'oczi | Bal\'azs Mik\'oczi | Spin supplementary conditions for spinning compact binaries | 15 two-column pages, 3 figures, 1 tables; corrected version, a new
subsection 3.A ('Canonical structure') and some references added | Phys. Rev. D 95, 064023 (2017) | 10.1103/PhysRevD.95.064023 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider different spin supplementary conditions (SSC) for a spinning
compact binary with the leading-order spin-orbit (SO) interaction. The
Lagrangian of the binary system can be constructed but it is
acceleration-dependent in two cases of SSC. We rewrite the generalized
Hamiltonian formalism proposed by Ostrogra... | [
{
"created": "Tue, 6 Sep 2016 13:08:21 GMT",
"version": "v1"
},
{
"created": "Fri, 24 Mar 2017 09:26:15 GMT",
"version": "v2"
}
] | 2017-03-27 | [
[
"Mikóczi",
"Balázs",
""
]
] | We consider different spin supplementary conditions (SSC) for a spinning compact binary with the leading-order spin-orbit (SO) interaction. The Lagrangian of the binary system can be constructed but it is acceleration-dependent in two cases of SSC. We rewrite the generalized Hamiltonian formalism proposed by Ostrograds... |
gr-qc/9805095 | Sukratu Barve | Sukratu Barve, T. P. Singh, Cenalo Vaz and Louis Witten | The Quantum Stress-Tensor in Self-Similar Spherical Dust Collapse | Latex File, 19 pages | Phys.Rev. D58 (1998) 104018 | 10.1103/PhysRevD.58.104018 | TIFR-Preprint | gr-qc | null | We calculate the quantum stress tensor for a massless scalar field in the 2-d
self-similar spherical dust collapse model which admits a naked singularity. We
find that the outgoing radiation flux diverges on the Cauchy horizon. This may
have two consequences. The resultant back reaction may prevent the naked
singular... | [
{
"created": "Wed, 27 May 1998 13:05:04 GMT",
"version": "v1"
}
] | 2009-10-31 | [
[
"Barve",
"Sukratu",
""
],
[
"Singh",
"T. P.",
""
],
[
"Vaz",
"Cenalo",
""
],
[
"Witten",
"Louis",
""
]
] | We calculate the quantum stress tensor for a massless scalar field in the 2-d self-similar spherical dust collapse model which admits a naked singularity. We find that the outgoing radiation flux diverges on the Cauchy horizon. This may have two consequences. The resultant back reaction may prevent the naked singularit... |
2011.03927 | Yu-Xiao Liu | Jing Chen, Wen-Di Guo, Yu-Xiao Liu | Thick branes with inner structure in mimetic $f(R)$ gravity | 16 pages, 26 figures | Eur.Phys.J.C 81 (2021) 8, 709 | 10.1140/epjc/s10052-021-09504-y | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper, we study the structure and gravitational resonances of thick
branes generated by a mimetic scalar field in $f(R)$ gravity. We obtain several
typical thick brane solutions for $f(R)=R+\alpha R^2$. To study their
stability, we analyze the tensor perturbation of the metric. It is shown that
any thick bran... | [
{
"created": "Sun, 8 Nov 2020 08:53:56 GMT",
"version": "v1"
},
{
"created": "Sat, 28 Nov 2020 03:50:39 GMT",
"version": "v2"
},
{
"created": "Mon, 24 May 2021 13:53:12 GMT",
"version": "v3"
},
{
"created": "Thu, 28 Apr 2022 03:37:00 GMT",
"version": "v4"
}
] | 2022-04-29 | [
[
"Chen",
"Jing",
""
],
[
"Guo",
"Wen-Di",
""
],
[
"Liu",
"Yu-Xiao",
""
]
] | In this paper, we study the structure and gravitational resonances of thick branes generated by a mimetic scalar field in $f(R)$ gravity. We obtain several typical thick brane solutions for $f(R)=R+\alpha R^2$. To study their stability, we analyze the tensor perturbation of the metric. It is shown that any thick brane ... |
1705.02369 | Michael Kesden | Xinyu Zhao, Michael Kesden, Davide Gerosa | Nutational resonances, transitional precession, and precession-averaged
evolution in binary black-hole systems | 18 pages, 9 figures, version published in PRD | Phys. Rev. D 96, 024007 (2017) | 10.1103/PhysRevD.96.024007 | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In the post-Newtonian (PN) regime, the timescale on which the spins of binary
black holes precess is much shorter than the radiation-reaction timescale on
which the black holes inspiral to smaller separations. On the precession
timescale, the angle between the total and orbital angular momenta oscillates
with nutatio... | [
{
"created": "Fri, 5 May 2017 19:19:25 GMT",
"version": "v1"
},
{
"created": "Thu, 17 Aug 2017 18:30:29 GMT",
"version": "v2"
}
] | 2017-08-21 | [
[
"Zhao",
"Xinyu",
""
],
[
"Kesden",
"Michael",
""
],
[
"Gerosa",
"Davide",
""
]
] | In the post-Newtonian (PN) regime, the timescale on which the spins of binary black holes precess is much shorter than the radiation-reaction timescale on which the black holes inspiral to smaller separations. On the precession timescale, the angle between the total and orbital angular momenta oscillates with nutation ... |
1309.7181 | James E. Lidsey | James E. Lidsey | Scalar Field Cosmologies Hidden Within the Nonlinear Schrodinger
Equation | 11 pages, REVTEX | null | null | null | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The nonlinear, cubic Schrodinger (NLS) equation has numerous physical
applications, but in general is very difficult to solve. Nonetheless, under
certain circumstances parameters quantifying the width, momentum and energy of
the wavefunction evolve under a closed set of ordinary differential equations.
It is shown th... | [
{
"created": "Fri, 27 Sep 2013 09:44:38 GMT",
"version": "v1"
}
] | 2013-10-01 | [
[
"Lidsey",
"James E.",
""
]
] | The nonlinear, cubic Schrodinger (NLS) equation has numerous physical applications, but in general is very difficult to solve. Nonetheless, under certain circumstances parameters quantifying the width, momentum and energy of the wavefunction evolve under a closed set of ordinary differential equations. It is shown that... |
1712.09349 | Pitayuth Wongjun | Ratchaphat Nakarachinda and Pitayuth Wongjun | Cosmological model due to dimensional reduction of higher-dimensional
massive gravity theory | 27 pages, 10 figures | Eur. Phys. J. C 78, 827 (2018) | 10.1140/epjc/s10052-018-6317-8 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate a cosmological model resulting from a dimensional reduction of
the higher-dimensional dRGT massive gravity. By using the Kaluza-Klein
dimensional reduction, we obtain an effective four-dimensional massive gravity
theory with a scalar field. It is found that the resulting theory corresponds
to a combine... | [
{
"created": "Mon, 25 Dec 2017 08:21:07 GMT",
"version": "v1"
}
] | 2023-03-21 | [
[
"Nakarachinda",
"Ratchaphat",
""
],
[
"Wongjun",
"Pitayuth",
""
]
] | We investigate a cosmological model resulting from a dimensional reduction of the higher-dimensional dRGT massive gravity. By using the Kaluza-Klein dimensional reduction, we obtain an effective four-dimensional massive gravity theory with a scalar field. It is found that the resulting theory corresponds to a combined ... |
2106.05002 | Matt Visser | Jessica Santiago (Victoria University of Wellington), Sebastian
Schuster (Charles University of Prague), and Matt Visser (Victoria University
of Wellington) | Tractor beams, pressor beams, and stressor beams in general relativity | 44 pages; 4 figures; 1 table | Universe 2021, 7(8), 271 | 10.3390/universe7080271 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The metrics of general relativity generally fall into two categories: Those
which are solutions of the Einstein equations for a given source
energy-momentum tensor, and the "reverse engineered" metrics -- metrics bespoke
for a certain purpose. Their energy-momentum tensors are then calculated by
inserting these into ... | [
{
"created": "Wed, 9 Jun 2021 12:04:15 GMT",
"version": "v1"
}
] | 2022-03-23 | [
[
"Santiago",
"Jessica",
"",
"Victoria University of Wellington"
],
[
"Schuster",
"Sebastian",
"",
"Charles University of Prague"
],
[
"Visser",
"Matt",
"",
"Victoria University\n of Wellington"
]
] | The metrics of general relativity generally fall into two categories: Those which are solutions of the Einstein equations for a given source energy-momentum tensor, and the "reverse engineered" metrics -- metrics bespoke for a certain purpose. Their energy-momentum tensors are then calculated by inserting these into th... |
1411.3269 | Philippe G. LeFloch | Nastasia Grubic and Philippe G. LeFloch | On the area of the symmetry orbits in weakly regular Einstein-Euler
spacetimes with Gowdy symmetry | 18 pages | null | null | null | gr-qc math.AP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | This paper establishes novel bounds for Gowdy-symmetric Einstein-Euler
spacetimes and completes the analysis, initiated by LeFloch and Rendall, of the
global areal foliation for these spacetimes. We thus consider the initial value
problem for the Einstein-Euler equations under the assumption of Gowdy
symmetry. We est... | [
{
"created": "Wed, 12 Nov 2014 18:15:40 GMT",
"version": "v1"
}
] | 2014-11-13 | [
[
"Grubic",
"Nastasia",
""
],
[
"LeFloch",
"Philippe G.",
""
]
] | This paper establishes novel bounds for Gowdy-symmetric Einstein-Euler spacetimes and completes the analysis, initiated by LeFloch and Rendall, of the global areal foliation for these spacetimes. We thus consider the initial value problem for the Einstein-Euler equations under the assumption of Gowdy symmetry. We estab... |
2302.02999 | Sanasam Surendra Singh | Amit Samaddar, S. Surendra Singh and Shivangi Rathore | Stability analysis of cosmological models coupled minimally with scalar
field in $f(Q)$ gravity | 23 pages, 10 figures | null | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this work, in the framework of dynamical system analysis, we focus on the
study of the accelerated expansion of the Universe of $f(Q)$ gravity theory
where $Q$ be the non-metricity that describes the gravitational interaction. We
consider the linear form of $f(Q)$ gravity i.e. $f(Q)=-\alpha_{1}Q-\alpha_{2}$
where ... | [
{
"created": "Wed, 18 Jan 2023 10:59:15 GMT",
"version": "v1"
}
] | 2023-02-07 | [
[
"Samaddar",
"Amit",
""
],
[
"Singh",
"S. Surendra",
""
],
[
"Rathore",
"Shivangi",
""
]
] | In this work, in the framework of dynamical system analysis, we focus on the study of the accelerated expansion of the Universe of $f(Q)$ gravity theory where $Q$ be the non-metricity that describes the gravitational interaction. We consider the linear form of $f(Q)$ gravity i.e. $f(Q)=-\alpha_{1}Q-\alpha_{2}$ where $\... |
1012.5126 | Jiliang Jing | Changqing Liu, Songbai Chen, Chikun Ding, Jiliang Jing | Particle Acceleration on the Background of the Kerr-Taub-NUT Spacetime | 13 pages, 1 figure, 2 tables | Phys. Lett. B701:285,2011 | 10.1016/j.physletb.2011.05.070 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the collision of two particles with the different rest masses moving
in the equatorial plane of a Kerr-Taub-NUT spacetime and get the center-of-mass
(CM) energy for the particles. We find that the CM energy depends not only on
the rotation parameter, $a$, but also on the NUT charge of the Kerr-Taub-NUT
space... | [
{
"created": "Thu, 23 Dec 2010 01:01:45 GMT",
"version": "v1"
},
{
"created": "Mon, 27 Jun 2011 00:04:00 GMT",
"version": "v2"
}
] | 2011-07-26 | [
[
"Liu",
"Changqing",
""
],
[
"Chen",
"Songbai",
""
],
[
"Ding",
"Chikun",
""
],
[
"Jing",
"Jiliang",
""
]
] | We study the collision of two particles with the different rest masses moving in the equatorial plane of a Kerr-Taub-NUT spacetime and get the center-of-mass (CM) energy for the particles. We find that the CM energy depends not only on the rotation parameter, $a$, but also on the NUT charge of the Kerr-Taub-NUT spaceti... |
1211.3525 | Daisuke Ida | Daisuke Ida, Takahiro Okamoto, and Miyuki Saito | Modular Theory for Operator Algebra in Bounded Region of Space-Time and
Quantum Entanglement | 11 pages, 2 figures | null | 10.1093/ptep/ptt061 | null | gr-qc hep-th quant-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider the quantum state seen by an observer in the diamond-shaped
region, which is a globally hyperbolic open submanifold of the Minkowski
space-time. It is known from the operator-algebraic argument that the vacuum
state of the quantum field transforming covariantly under the conformal group
looks like a therm... | [
{
"created": "Thu, 15 Nov 2012 08:16:07 GMT",
"version": "v1"
},
{
"created": "Fri, 21 Jun 2013 12:46:47 GMT",
"version": "v2"
}
] | 2016-06-21 | [
[
"Ida",
"Daisuke",
""
],
[
"Okamoto",
"Takahiro",
""
],
[
"Saito",
"Miyuki",
""
]
] | We consider the quantum state seen by an observer in the diamond-shaped region, which is a globally hyperbolic open submanifold of the Minkowski space-time. It is known from the operator-algebraic argument that the vacuum state of the quantum field transforming covariantly under the conformal group looks like a thermal... |
1509.00308 | Roberto Onofrio | Roberto Onofrio | Muonic hydrogen as a quantum gravimeter | 12 pages, 6 figures, regular article version of preprint
arXiv:1312.3469 appeared as EPL 104, 20002 (2013), prediction for muonic
deuterium Lamb shift anomaly: 42.6 microeV | Int. J. Mod. Phys. D 23, 1450005 (2014) | 10.1142/S0218271814500059 | null | gr-qc physics.atom-ph quant-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | High precision spectroscopy of muonic hydrogen has recently led to an anomaly
in the Lamb shift, which has been parametrized in terms of a proton charge
radius differing by seven standard deviations from the CODATA value. We show
how this anomaly may be explained, within about a factor of three, in the
framework of a... | [
{
"created": "Tue, 1 Sep 2015 14:19:28 GMT",
"version": "v1"
}
] | 2015-09-02 | [
[
"Onofrio",
"Roberto",
""
]
] | High precision spectroscopy of muonic hydrogen has recently led to an anomaly in the Lamb shift, which has been parametrized in terms of a proton charge radius differing by seven standard deviations from the CODATA value. We show how this anomaly may be explained, within about a factor of three, in the framework of an ... |
1405.7287 | Alejandro Perez | Alejandro Perez | Statistical and entanglement entropy for black holes in quantum geometry | References added | Phys. Rev. D 90, 084015 (2014) | 10.1103/PhysRevD.90.084015 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We analyze the relationship between entanglement (or geometric) entropy with
statistical mechanical entropy of horizon degrees of freedom when described in
the framework of isolated horizons in loop quantum gravity. We show that, once
the relevant degrees of freedom are identified, the two notions coincide. The
key i... | [
{
"created": "Wed, 28 May 2014 16:03:26 GMT",
"version": "v1"
},
{
"created": "Wed, 4 Jun 2014 16:18:15 GMT",
"version": "v2"
}
] | 2014-10-15 | [
[
"Perez",
"Alejandro",
""
]
] | We analyze the relationship between entanglement (or geometric) entropy with statistical mechanical entropy of horizon degrees of freedom when described in the framework of isolated horizons in loop quantum gravity. We show that, once the relevant degrees of freedom are identified, the two notions coincide. The key ing... |
2009.08197 | Alejandro Jim\'enez-Cano | Jose Beltr\'an Jim\'enez and Alejandro Jim\'enez-Cano | On the strong coupling of Einsteinian Cubic Gravity and its
generalisations | 14 pages, 4 figures, 1 table | null | 10.1088/1475-7516/2021/01/069 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this note we discuss the strong coupling issues inherent to the defining
requirement for the so-called Einsteinian Cubic Gravity and its
quasi-topological generalisations.
| [
{
"created": "Thu, 17 Sep 2020 10:33:18 GMT",
"version": "v1"
}
] | 2021-02-03 | [
[
"Jiménez",
"Jose Beltrán",
""
],
[
"Jiménez-Cano",
"Alejandro",
""
]
] | In this note we discuss the strong coupling issues inherent to the defining requirement for the so-called Einsteinian Cubic Gravity and its quasi-topological generalisations. |
0901.2298 | Pac\^ome Delva | L. Bergamin, P. Delva and A. Hees | The relativistic glider revisited | 5 pages, 7 figures; minor corrections | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper we analyze some aspects of the "relativistic glider" proposed
by Gu\'eron and Mosna more in detail. In particular an explicit weak gravity
and low velocity expansion is presented, the influence of different initial
conditions are studied and the behavior of the glider over a longer integration
time is p... | [
{
"created": "Thu, 15 Jan 2009 16:24:52 GMT",
"version": "v1"
},
{
"created": "Fri, 16 Jan 2009 09:38:48 GMT",
"version": "v2"
},
{
"created": "Fri, 25 Sep 2009 13:11:23 GMT",
"version": "v3"
}
] | 2009-09-25 | [
[
"Bergamin",
"L.",
""
],
[
"Delva",
"P.",
""
],
[
"Hees",
"A.",
""
]
] | In this paper we analyze some aspects of the "relativistic glider" proposed by Gu\'eron and Mosna more in detail. In particular an explicit weak gravity and low velocity expansion is presented, the influence of different initial conditions are studied and the behavior of the glider over a longer integration time is pre... |
1809.09866 | David Benisty | David Benisty, Eduardo I. Guendelman | Two scalar fields inflation from scale-invariant gravity with modified
measure | The accepted version in CQG | null | 10.1088/1361-6382/ab14af | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A new class of gravity-matter model defined with an independent
non-Riemannian volume form is studied, in the second order formalism. The
action has a global scale invariance symmetry, which can be broken by the
equation of motion of the measure fields. By a conformal transformation the
theory transforms into a theor... | [
{
"created": "Wed, 26 Sep 2018 09:34:53 GMT",
"version": "v1"
},
{
"created": "Wed, 20 Mar 2019 12:52:24 GMT",
"version": "v2"
}
] | 2019-05-22 | [
[
"Benisty",
"David",
""
],
[
"Guendelman",
"Eduardo I.",
""
]
] | A new class of gravity-matter model defined with an independent non-Riemannian volume form is studied, in the second order formalism. The action has a global scale invariance symmetry, which can be broken by the equation of motion of the measure fields. By a conformal transformation the theory transforms into a theory ... |
2304.04800 | Jian-Dong Zhang | Xin-yi Lin, Jian-dong Zhang, Liang Dai, Shun-Jia Huang, Jianwei Mei | Detecting Strong Gravitational Lensing of Gravitational Waves with
TianQin | 12 pages, 8 figures, published version | PhysRevD.108.064020 (2023) | 10.1103/PhysRevD.108.064020 | null | gr-qc astro-ph.CO | http://creativecommons.org/licenses/by/4.0/ | When gravitational waves (GWs) pass by a massive object on its way to Earth,
a strong gravitational lensing effect will happen. Thus, the GW signal will be
amplified, deflected, and delayed in time. Through analyzing the lensed GW
waveform, physical properties of the lens can be inferred. On the other hand,
neglectin... | [
{
"created": "Mon, 10 Apr 2023 18:12:03 GMT",
"version": "v1"
},
{
"created": "Fri, 6 Oct 2023 01:40:15 GMT",
"version": "v2"
}
] | 2023-10-09 | [
[
"Lin",
"Xin-yi",
""
],
[
"Zhang",
"Jian-dong",
""
],
[
"Dai",
"Liang",
""
],
[
"Huang",
"Shun-Jia",
""
],
[
"Mei",
"Jianwei",
""
]
] | When gravitational waves (GWs) pass by a massive object on its way to Earth, a strong gravitational lensing effect will happen. Thus, the GW signal will be amplified, deflected, and delayed in time. Through analyzing the lensed GW waveform, physical properties of the lens can be inferred. On the other hand, neglecting ... |
1905.12290 | Mehrab Momennia | Mehrab Momennia and Seyed Hossein Hendi | Near-extremal black holes in Weyl gravity: Quasinormal modes and
geodesic instability | 9 pages with one captioned figure and a table. Accepted in PRD | Phys. Rev. D 99, 124025 (2019) | 10.1103/PhysRevD.99.124025 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Stability criteria of nearly extreme black holes in the perturbations level
is one of the interesting issues in gravitational systems. Considering the
nearly extreme conformal-de Sitter black holes, in this paper, we obtain an
exact relation for the quasinormal modes of scalar perturbations. As for
stability criteria... | [
{
"created": "Wed, 29 May 2019 09:40:58 GMT",
"version": "v1"
}
] | 2019-07-17 | [
[
"Momennia",
"Mehrab",
""
],
[
"Hendi",
"Seyed Hossein",
""
]
] | Stability criteria of nearly extreme black holes in the perturbations level is one of the interesting issues in gravitational systems. Considering the nearly extreme conformal-de Sitter black holes, in this paper, we obtain an exact relation for the quasinormal modes of scalar perturbations. As for stability criteria, ... |
2207.10692 | Pedro Fernandes | Pedro G. S. Fernandes, David J. Mulryne, Jorge F. M. Delgado | Exploring the Small Mass Limit of Stationary Black Holes in Theories
with Gauss-Bonnet Terms | 19 pages, 8 figures. Matches the version published in CQG | Class. Quantum Grav. (2022) 39 235015 | 10.1088/1361-6382/aca010 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this work we examine the small mass limit of black holes, with and without
spin, in theories where a scalar field is non-minimally coupled to a
Gauss-Bonnet term. First, we provide an analytical example for a theory where a
static closed-form solution with a small mass limit is known, and later use
analytical and ... | [
{
"created": "Thu, 21 Jul 2022 18:05:43 GMT",
"version": "v1"
},
{
"created": "Mon, 14 Nov 2022 15:07:32 GMT",
"version": "v2"
},
{
"created": "Tue, 15 Nov 2022 13:36:04 GMT",
"version": "v3"
}
] | 2022-11-16 | [
[
"Fernandes",
"Pedro G. S.",
""
],
[
"Mulryne",
"David J.",
""
],
[
"Delgado",
"Jorge F. M.",
""
]
] | In this work we examine the small mass limit of black holes, with and without spin, in theories where a scalar field is non-minimally coupled to a Gauss-Bonnet term. First, we provide an analytical example for a theory where a static closed-form solution with a small mass limit is known, and later use analytical and nu... |
2307.09386 | Richard Woodard | D. Glavan (CEICO), S. P. Miao (NCKU), T. Prokopec (Utrecht) and R. P.
Woodard (Florida) | Explaining Large Electromagnetic Logarithms from Loops of Inflationary
Gravitons | 22 pages, uses LaTeX2e, slightly revised for publication | JHEP 08 (2023) 195 | 10.1007/JHEP08(2023)195 | UFIFT-QG-23-08 | gr-qc hep-th | http://creativecommons.org/licenses/by/4.0/ | Recent progress on nonlinear sigma models on de Sitter background has
permitted the resummation of large inflationary logarithms by combining a
variant of Starobinsky's stochastic formalism with a variant of the
renormalization group. We reconsider single graviton loop corrections to the
photon wave function, and to ... | [
{
"created": "Tue, 18 Jul 2023 16:10:25 GMT",
"version": "v1"
},
{
"created": "Wed, 30 Aug 2023 20:14:40 GMT",
"version": "v2"
}
] | 2023-09-01 | [
[
"Glavan",
"D.",
"",
"CEICO"
],
[
"Miao",
"S. P.",
"",
"NCKU"
],
[
"Prokopec",
"T.",
"",
"Utrecht"
],
[
"Woodard",
"R. P.",
"",
"Florida"
]
] | Recent progress on nonlinear sigma models on de Sitter background has permitted the resummation of large inflationary logarithms by combining a variant of Starobinsky's stochastic formalism with a variant of the renormalization group. We reconsider single graviton loop corrections to the photon wave function, and to th... |
gr-qc/9905101 | A. Edery | A. Edery | The Bright Side of Dark Matter | 7 pages, latex, no figures. Received an honorable mention in the 1999
Gravity research Foundation Essay Competition. Submitted to Phys. Rev. Lett | Phys.Rev.Lett. 83 (1999) 3990-3992 | 10.1103/PhysRevLett.83.3990 | McGill/99-19 | gr-qc | null | We show that it is not possible in the absence of dark matter to construct a
four-dimensional metric that explains galactic observations. In particular, by
working with an effective potential it is shown that a metric which is
constructed to fit flat rotation curves in spiral galaxies leads to the wrong
sign for the ... | [
{
"created": "Thu, 27 May 1999 20:29:03 GMT",
"version": "v1"
}
] | 2009-10-31 | [
[
"Edery",
"A.",
""
]
] | We show that it is not possible in the absence of dark matter to construct a four-dimensional metric that explains galactic observations. In particular, by working with an effective potential it is shown that a metric which is constructed to fit flat rotation curves in spiral galaxies leads to the wrong sign for the be... |
gr-qc/0305042 | Abhik Kumar Sanyal | Abhik Kumar Sanyal | Quantum Mechanical Formulation Of Quantum Cosmology For Brane-World
Effective Action | 6 pages, Latex | null | null | null | gr-qc | null | Canonical quantization of the Brane-World effective action presented by Kanno
and Soda containing higher order curvature invariant terms, has been performed.
It requires introduction of an auxiliary variable. As observed in a series of
publications by Sanyal and Modak, here again we infer that properly chosen
auxilia... | [
{
"created": "Mon, 12 May 2003 09:08:06 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Sanyal",
"Abhik Kumar",
""
]
] | Canonical quantization of the Brane-World effective action presented by Kanno and Soda containing higher order curvature invariant terms, has been performed. It requires introduction of an auxiliary variable. As observed in a series of publications by Sanyal and Modak, here again we infer that properly chosen auxiliary... |
1711.04538 | Zhaoyi Xu | Zhaoyi Xu, Xian Hou and Jiancheng Wang | Kerr-Anti-De-Sitter/De-Sitter Black Hole In Perfect Fluid Dark Matter
Background | 22 pages, 4 figures | null | 10.1088/1361-6382/aabcb6 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We obtain the Kerr-anti-de-sitter (Kerr-AdS) and Kerr-de-sitter (Kerr-dS)
black hole (BH) solutions to the Einstein field equation in the perfect fluid
dark matter background using the Newman-Janis method and Mathematica package.
We discuss in detail the black hole properties and obtain the following main
results: (i... | [
{
"created": "Mon, 13 Nov 2017 11:53:22 GMT",
"version": "v1"
},
{
"created": "Mon, 23 Apr 2018 02:02:56 GMT",
"version": "v2"
}
] | 2018-04-24 | [
[
"Xu",
"Zhaoyi",
""
],
[
"Hou",
"Xian",
""
],
[
"Wang",
"Jiancheng",
""
]
] | We obtain the Kerr-anti-de-sitter (Kerr-AdS) and Kerr-de-sitter (Kerr-dS) black hole (BH) solutions to the Einstein field equation in the perfect fluid dark matter background using the Newman-Janis method and Mathematica package. We discuss in detail the black hole properties and obtain the following main results: (i) ... |
gr-qc/0305071 | Matthew Anderson | Erin Bonning, Pedro Marronetti, David Neilsen and Richard Matzner | Physics and Initial Data for Multiple Black Hole Spacetimes | 41 pages, 17 figures | Phys.Rev. D68 (2003) 044019 | 10.1103/PhysRevD.68.044019 | null | gr-qc | null | An orbiting black hole binary will generate strong gravitational radiation
signatures, making these binaries important candidates for detection in
gravitational wave observatories. The gravitational radiation is characterized
by the orbital parameters, including the frequency and separation at the
inner-most stable c... | [
{
"created": "Mon, 19 May 2003 18:20:34 GMT",
"version": "v1"
}
] | 2009-11-10 | [
[
"Bonning",
"Erin",
""
],
[
"Marronetti",
"Pedro",
""
],
[
"Neilsen",
"David",
""
],
[
"Matzner",
"Richard",
""
]
] | An orbiting black hole binary will generate strong gravitational radiation signatures, making these binaries important candidates for detection in gravitational wave observatories. The gravitational radiation is characterized by the orbital parameters, including the frequency and separation at the inner-most stable cir... |
0908.2693 | Hamid Reza Sepangi | A. S. Sefiedgar, K. Atazadeh and H. R. Sepangi | Generalized virial theorem in Palatini $f(R)$ gravity | 16 pages, to appear in PRD | Phys. Rev. D 80 (2009) 064010 | 10.1103/PhysRevD.80.064010 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We use the collision-free Boltzmann equation in Palatini $f({\mathcal{R}})$
gravity to derive the virial theorem within the context of the Palatini
approach. It is shown that the virial mass is proportional to certain
geometrical terms appearing in the Einstein field equations which contribute to
gravitational energy... | [
{
"created": "Wed, 19 Aug 2009 08:13:08 GMT",
"version": "v1"
},
{
"created": "Wed, 26 Aug 2009 06:24:39 GMT",
"version": "v2"
}
] | 2015-05-13 | [
[
"Sefiedgar",
"A. S.",
""
],
[
"Atazadeh",
"K.",
""
],
[
"Sepangi",
"H. R.",
""
]
] | We use the collision-free Boltzmann equation in Palatini $f({\mathcal{R}})$ gravity to derive the virial theorem within the context of the Palatini approach. It is shown that the virial mass is proportional to certain geometrical terms appearing in the Einstein field equations which contribute to gravitational energy a... |
1407.5682 | Stefan Ballmer | Sheila Dwyer, Stefan W. Ballmer | Radiative Thermal Noise for Transmissive Optics in Gravitational-Wave
Detectors | 4 pages, no figures | Phys. Rev. D 90, 043013 (2014) | 10.1103/PhysRevD.90.043013 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Radiative losses have traditionally been neglected in the calculation of
thermal noise of transmissive optical elements because for the most commonly
used geometries they are small compared to losses due to thermal conduction. We
explore the use of such transmissive optical elements in extremely
noise-sensitive envir... | [
{
"created": "Mon, 21 Jul 2014 22:38:57 GMT",
"version": "v1"
},
{
"created": "Thu, 7 Aug 2014 23:14:40 GMT",
"version": "v2"
}
] | 2014-09-05 | [
[
"Dwyer",
"Sheila",
""
],
[
"Ballmer",
"Stefan W.",
""
]
] | Radiative losses have traditionally been neglected in the calculation of thermal noise of transmissive optical elements because for the most commonly used geometries they are small compared to losses due to thermal conduction. We explore the use of such transmissive optical elements in extremely noise-sensitive environ... |
gr-qc/9409027 | Benni Reznik | Benni Reznik | Gravitational Analog of the Aharonov-Casher Effect | 15 pages, Latex, TP-94-009 | Phys.Rev. D51 (1995) 3108-3112 | 10.1103/PhysRevD.51.3108 | null | gr-qc | null | The gravitational interaction between a massive particle and a spinning
particle in the weak-field limit is studied. We show that a system of a
spinning point-like particle and a massive rod exhibit a topological effect
analogous to the electromagnetic Aharonov-Casher effect. We discuss the effect
also for systems wi... | [
{
"created": "Tue, 13 Sep 1994 22:18:38 GMT",
"version": "v1"
}
] | 2009-10-22 | [
[
"Reznik",
"Benni",
""
]
] | The gravitational interaction between a massive particle and a spinning particle in the weak-field limit is studied. We show that a system of a spinning point-like particle and a massive rod exhibit a topological effect analogous to the electromagnetic Aharonov-Casher effect. We discuss the effect also for systems with... |
1505.00067 | Leo Brewin | Leo Brewin | A numerical study of the Regge Calculus and Smooth Lattice methods on a
Kasner cosmology | null | null | 10.1088/0264-9381/32/19/195008 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Two lattice based methods for numerical relativity, the Regge Calculus and
the Smooth Lattice Relativity, will be compared with respect to accuracy and
computational speed in a full 3+1 evolution of initial data representing a
standard Kasner cosmology. It will be shown that both methods provide
convergent approximat... | [
{
"created": "Fri, 1 May 2015 01:49:07 GMT",
"version": "v1"
}
] | 2015-09-23 | [
[
"Brewin",
"Leo",
""
]
] | Two lattice based methods for numerical relativity, the Regge Calculus and the Smooth Lattice Relativity, will be compared with respect to accuracy and computational speed in a full 3+1 evolution of initial data representing a standard Kasner cosmology. It will be shown that both methods provide convergent approximatio... |
gr-qc/9906006 | Jose F. Nieves | Jose F. Nieves and Palash B. Pal | Non-universal gravitational couplings of neutrinos in matter | Latex, 10 pages | Mod.Phys.Lett. A14 (1999) 1199-1208 | 10.1142/S0217732399001292 | null | gr-qc | null | When neutrinos travel through a normal matter medium, the electron neutrinos
couple differently to gravity compared to the other neutrinos, due to the
presence of electrons in the medium and the absence of the other charged
leptons. The matter-induced gravitational couplings of the neutrinos under such
conditions are... | [
{
"created": "Wed, 2 Jun 1999 13:31:20 GMT",
"version": "v1"
}
] | 2009-10-31 | [
[
"Nieves",
"Jose F.",
""
],
[
"Pal",
"Palash B.",
""
]
] | When neutrinos travel through a normal matter medium, the electron neutrinos couple differently to gravity compared to the other neutrinos, due to the presence of electrons in the medium and the absence of the other charged leptons. The matter-induced gravitational couplings of the neutrinos under such conditions are c... |
gr-qc/0102068 | Valerio Bozza | V. Bozza, S. Capozziello, G. Iovane, G. Scarpetta | Strong field limit of black hole gravitational lensing | 11 pages, 3 figures | Gen.Rel.Grav. 33 (2001) 1535-1548 | 10.1023/A:1012292927358 | null | gr-qc astro-ph | null | We give the formulation of the gravitational lensing theory in the strong
field limit for a Schwarzschild black hole as a counterpart to the weak field
approach. It is possible to expand the full black hole lens equation to work a
simple analytical theory that describes at a high accuracy degree the physics
in the st... | [
{
"created": "Wed, 14 Feb 2001 14:12:17 GMT",
"version": "v1"
}
] | 2015-06-25 | [
[
"Bozza",
"V.",
""
],
[
"Capozziello",
"S.",
""
],
[
"Iovane",
"G.",
""
],
[
"Scarpetta",
"G.",
""
]
] | We give the formulation of the gravitational lensing theory in the strong field limit for a Schwarzschild black hole as a counterpart to the weak field approach. It is possible to expand the full black hole lens equation to work a simple analytical theory that describes at a high accuracy degree the physics in the stro... |
1903.01846 | Claes Uggla | Claes Uggla and John Wainwright | The general solution at large scale for second order perturbations in a
scalar field dominated universe | 16 pages | null | 10.1088/1475-7516/2019/06/021 | null | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper we consider second order perturbations of a flat
Friedmann-Lema\^{i}tre universe whose stress-energy content is a single
minimally coupled scalar field with an arbitrary potential. We derive the
general solution of the perturbed Einstein equations in explicit form for this
class of models when the pertu... | [
{
"created": "Tue, 5 Mar 2019 14:31:05 GMT",
"version": "v1"
},
{
"created": "Fri, 7 Jun 2019 11:37:31 GMT",
"version": "v2"
}
] | 2019-06-19 | [
[
"Uggla",
"Claes",
""
],
[
"Wainwright",
"John",
""
]
] | In this paper we consider second order perturbations of a flat Friedmann-Lema\^{i}tre universe whose stress-energy content is a single minimally coupled scalar field with an arbitrary potential. We derive the general solution of the perturbed Einstein equations in explicit form for this class of models when the perturb... |
gr-qc/0601110 | Joan Josep Ferrando | Bartolom\'e Coll | Relativistic Positioning Systems | 8 pages; 1 figure; to appear in Proc. Spanish Relativity Meeting
ERE-2005, Oviedo (Spain); v2: minor formal changes | null | 10.1063/1.2218182 | null | gr-qc | null | The theory of relativistic {\em location systems} is sketched. An interesting
class of these systems is that of relativistic {\em positioning systems,} which
consists in sets of four clocks broadcasting their proper time. Among them, the
more important ones are the {\em auto-located positioning systems,} in which
eve... | [
{
"created": "Thu, 26 Jan 2006 14:04:51 GMT",
"version": "v1"
},
{
"created": "Wed, 1 Feb 2006 12:39:15 GMT",
"version": "v2"
}
] | 2009-11-11 | [
[
"Coll",
"Bartolomé",
""
]
] | The theory of relativistic {\em location systems} is sketched. An interesting class of these systems is that of relativistic {\em positioning systems,} which consists in sets of four clocks broadcasting their proper time. Among them, the more important ones are the {\em auto-located positioning systems,} in which every... |
1411.6244 | Yurii Ignat'ev | Yurii Ignat'ev, Alexander Agathonov, Mikhail Mikhailov and Dmitry
Ignatyev | Cosmological Evolution of Statistical System of Scalar Charged Particles | 49 pages, 26 figures, 26 references | null | 10.1007/s10509-015-2324-5 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In the paper we consider the macroscopic model of plasma of scalar charged
particles, obtained by means of the statistical averaging of the microscopic
equations of particle dynamics in a scalar field. On the basis of kinetic
equations, obtained from averaging, and their strict integral consequences, a
self-consisten... | [
{
"created": "Sun, 23 Nov 2014 14:22:46 GMT",
"version": "v1"
}
] | 2015-06-23 | [
[
"Ignat'ev",
"Yurii",
""
],
[
"Agathonov",
"Alexander",
""
],
[
"Mikhailov",
"Mikhail",
""
],
[
"Ignatyev",
"Dmitry",
""
]
] | In the paper we consider the macroscopic model of plasma of scalar charged particles, obtained by means of the statistical averaging of the microscopic equations of particle dynamics in a scalar field. On the basis of kinetic equations, obtained from averaging, and their strict integral consequences, a self-consistent ... |
gr-qc/0012074 | I. Kanatchikov | I.V. Kanatchikov | Precanonical Quantum Gravity: quantization without the space-time
decomposition | 33 pp, LaTeX, to appear in Int. J. Theor. Phys. v2: LaTeX format of
the reference list changed, minor typos fixed | Int.J.Theor.Phys.40:1121-1149,2001 | 10.1023/A:1017557603606 | FSU TPI 14/99 | gr-qc hep-th math-ph math.MP | null | A nonpertubative approach to quantum gravity using precanonical field
quantization originating from the covariant De Donder-Weyl Hamiltonian
formulation which treats space and time variables on equal footing is
presented. A generally covariant ``multi-temporal'' generalized Schroedinger
equation on the finite dimensi... | [
{
"created": "Wed, 20 Dec 2000 02:01:57 GMT",
"version": "v1"
},
{
"created": "Wed, 3 Jan 2001 04:27:01 GMT",
"version": "v2"
}
] | 2014-11-17 | [
[
"Kanatchikov",
"I. V.",
""
]
] | A nonpertubative approach to quantum gravity using precanonical field quantization originating from the covariant De Donder-Weyl Hamiltonian formulation which treats space and time variables on equal footing is presented. A generally covariant ``multi-temporal'' generalized Schroedinger equation on the finite dimension... |
gr-qc/9502028 | Carlos Kozameh | Simonetta Frittelli, Carlos Kozameh, Ted Newman | GR via Characteristic Surfaces | 35 pages, compressed and uuencoded RTF file | J.Math.Phys. 36 (1995) 4984-5004 | 10.1063/1.531210 | null | gr-qc | null | We reformulate the Einstein equations as equations for families of surfaces
on a four-manifold. These surfaces eventually become characteristic surfaces
for an Einstein metric (with or without sources). In particular they are
formulated in terms of two functions on R4xS2, i.e. the sphere bundle over
space-time, - one... | [
{
"created": "Sat, 11 Feb 1995 10:55:55 GMT",
"version": "v1"
}
] | 2009-10-28 | [
[
"Frittelli",
"Simonetta",
""
],
[
"Kozameh",
"Carlos",
""
],
[
"Newman",
"Ted",
""
]
] | We reformulate the Einstein equations as equations for families of surfaces on a four-manifold. These surfaces eventually become characteristic surfaces for an Einstein metric (with or without sources). In particular they are formulated in terms of two functions on R4xS2, i.e. the sphere bundle over space-time, - one o... |
1705.04008 | Tatsuya Narikawa | Tatsuya Narikawa, Masato Kaneyama, and Hideyuki Tagoshi | Optimal follow-up observations of gravitational wave events with small
optical telescopes | 12 pages, 6 figures, accepted for publication in Phys. Rev. D, added
cases of design sensitivities | Phys. Rev. D 96, 084067 (2017) | 10.1103/PhysRevD.96.084067 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We discuss optimal strategy for follow-up observations by 1-3 m class
optical/infrared telescopes which target optical/infrared counterparts of
gravitational wave events detected with two laser interferometric gravitational
wave detectors. The probability maps of transient sources, such as coalescing
neutron stars an... | [
{
"created": "Thu, 11 May 2017 04:22:07 GMT",
"version": "v1"
},
{
"created": "Mon, 30 Oct 2017 18:25:19 GMT",
"version": "v2"
}
] | 2017-11-08 | [
[
"Narikawa",
"Tatsuya",
""
],
[
"Kaneyama",
"Masato",
""
],
[
"Tagoshi",
"Hideyuki",
""
]
] | We discuss optimal strategy for follow-up observations by 1-3 m class optical/infrared telescopes which target optical/infrared counterparts of gravitational wave events detected with two laser interferometric gravitational wave detectors. The probability maps of transient sources, such as coalescing neutron stars and/... |
1804.01848 | Eric Poisson | Eric Poisson and Eamonn Corrigan | Nonrotating black hole in a post-Newtonian tidal environment II | 39 pages, 1 figure, revised after referee report, reference added,
matches published version | Phys. Rev. D 97, 124048 (2018) | 10.1103/PhysRevD.97.124048 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In the first part of the paper we construct the metric of a tidally deformed,
nonrotating black hole. The metric is presented as an expansion in powers of
r/b << 1, in which r is the distance to the black hole and b the characteristic
length scale of the tidal field --- the typical distance to the remote bodies
respo... | [
{
"created": "Thu, 5 Apr 2018 13:47:32 GMT",
"version": "v1"
},
{
"created": "Mon, 4 Jun 2018 12:30:53 GMT",
"version": "v2"
}
] | 2018-06-27 | [
[
"Poisson",
"Eric",
""
],
[
"Corrigan",
"Eamonn",
""
]
] | In the first part of the paper we construct the metric of a tidally deformed, nonrotating black hole. The metric is presented as an expansion in powers of r/b << 1, in which r is the distance to the black hole and b the characteristic length scale of the tidal field --- the typical distance to the remote bodies respons... |
0809.3563 | Lorenzo Iorio | Lorenzo Iorio | Putting Yukawa-like Modified Gravity (MOG) on the test in the Solar
System | LaTex2e, 13 pages, 1 table, no figures. To appear in Scholarly
Research Exchange (SYREXE). I thank the referees S. Capozziello and H.-S.
Zhao | Scholarly Research Exchange, vol. 2008, article ID 238385 | 10.3814/2008/238385 | null | gr-qc astro-ph hep-ph physics.space-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We deal with a Yukawa-like long-range modified model of gravity (MOG) which
recently allowed to successfully accommodate many astrophysical and
cosmological features without resorting to dark matter. On Solar System scales
MOG predicts retrograde secular precessions of the planetary longitudes of the
perihelia \varpi... | [
{
"created": "Sun, 21 Sep 2008 08:59:08 GMT",
"version": "v1"
},
{
"created": "Mon, 6 Oct 2008 18:28:05 GMT",
"version": "v2"
},
{
"created": "Tue, 7 Oct 2008 12:56:54 GMT",
"version": "v3"
},
{
"created": "Mon, 10 Nov 2008 15:07:53 GMT",
"version": "v4"
}
] | 2008-11-20 | [
[
"Iorio",
"Lorenzo",
""
]
] | We deal with a Yukawa-like long-range modified model of gravity (MOG) which recently allowed to successfully accommodate many astrophysical and cosmological features without resorting to dark matter. On Solar System scales MOG predicts retrograde secular precessions of the planetary longitudes of the perihelia \varpi w... |
1509.03266 | Mahouton J. Stephane Houndjo Dr | M. G. Ganiou, M. J. S. Houndjo, I. G. Salako, M. E. Rodrigues and J.
Tossa | Perfect fluid and F(T) gravity descriptions of inflationary universe and
comparison with obervational data | 18 pages. Accepted for publication in Astrophys Space Science. arXiv
admin note: text overlap with arXiv:1410.3993 by other authors | Astrophys Space Sci (2016) 361:1-12 | 10.1007/s10509-016-2794-0 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We describe in this paper the observables of inflationary models, in
particular the spectrum index of torsion scalar perturbations, the
tensor-to-scalar ratio, and the running of the spectral index, in the framework
of perfect fluid models and F(T) gravity theories through the reconstruction
methods. Then, our result... | [
{
"created": "Fri, 4 Sep 2015 05:48:00 GMT",
"version": "v1"
},
{
"created": "Fri, 10 Jun 2016 07:15:27 GMT",
"version": "v2"
}
] | 2016-06-22 | [
[
"Ganiou",
"M. G.",
""
],
[
"Houndjo",
"M. J. S.",
""
],
[
"Salako",
"I. G.",
""
],
[
"Rodrigues",
"M. E.",
""
],
[
"Tossa",
"J.",
""
]
] | We describe in this paper the observables of inflationary models, in particular the spectrum index of torsion scalar perturbations, the tensor-to-scalar ratio, and the running of the spectral index, in the framework of perfect fluid models and F(T) gravity theories through the reconstruction methods. Then, our results ... |
1312.6073 | Edward Anderson | Edward Anderson | Beables/Observables in Classical and Quantum Gravity | null | SIGMA 10 (2014), 092, 36 pages | 10.3842/SIGMA.2014.092 | null | gr-qc | http://creativecommons.org/licenses/by-nc-sa/3.0/ | Observables 'are observed' whereas beables just 'are'. This gives beables
more scope in the cosmological and quantum domains. Both observables and
beables are entities that form 'brackets' with 'the constraints' that are
'equal to' zero. We explain how depending on circumstances, these could be,
e.g., Poisson, Dirac,... | [
{
"created": "Fri, 20 Dec 2013 18:55:38 GMT",
"version": "v1"
},
{
"created": "Thu, 15 May 2014 22:36:11 GMT",
"version": "v2"
},
{
"created": "Wed, 16 Jul 2014 15:07:46 GMT",
"version": "v3"
},
{
"created": "Fri, 29 Aug 2014 05:20:56 GMT",
"version": "v4"
}
] | 2014-09-01 | [
[
"Anderson",
"Edward",
""
]
] | Observables 'are observed' whereas beables just 'are'. This gives beables more scope in the cosmological and quantum domains. Both observables and beables are entities that form 'brackets' with 'the constraints' that are 'equal to' zero. We explain how depending on circumstances, these could be, e.g., Poisson, Dirac, c... |
0801.4313 | John Veitch | John Veitch, Alberto Vecchio | A Bayesian approach to the follow-up of candidate gravitational wave
signals | 9 pages | Phys.Rev.D78:022001,2008 | 10.1103/PhysRevD.78.022001 | LIGO-P080005-00-Z | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Ground-based gravitational wave laser interferometers (LIGO, GEO-600, Virgo
and Tama-300) have now reached high sensitivity and duty cycle. We present a
Bayesian evidence-based approach to the search for gravitational waves, in
particular aimed at the followup of candidate events generated by the analysis
pipeline. W... | [
{
"created": "Mon, 28 Jan 2008 16:07:18 GMT",
"version": "v1"
},
{
"created": "Tue, 29 Jan 2008 12:34:55 GMT",
"version": "v2"
},
{
"created": "Fri, 4 Jul 2008 13:35:52 GMT",
"version": "v3"
}
] | 2008-11-26 | [
[
"Veitch",
"John",
""
],
[
"Vecchio",
"Alberto",
""
]
] | Ground-based gravitational wave laser interferometers (LIGO, GEO-600, Virgo and Tama-300) have now reached high sensitivity and duty cycle. We present a Bayesian evidence-based approach to the search for gravitational waves, in particular aimed at the followup of candidate events generated by the analysis pipeline. We ... |
1405.1208 | Angnis Schmidt-May | Angnis Schmidt-May | Consistent Bimetric Theory and its Application to Cosmology | 4 pages, to appear in the proceedings of the conference "Rencontres
de Moriond", Cosmology Session, 2014; minor changes, references added | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Recently, the construction of ghost-free nonlinear massive spin-2
interactions solved a long outstanding problem in classical field theory. The
consistent formulation requires a second rank-two tensor (or metric) and
therefore has the form of a bimetric theory. Besides providing the solution to
an old problem in fiel... | [
{
"created": "Tue, 6 May 2014 09:47:51 GMT",
"version": "v1"
},
{
"created": "Mon, 12 May 2014 07:41:51 GMT",
"version": "v2"
}
] | 2014-05-13 | [
[
"Schmidt-May",
"Angnis",
""
]
] | Recently, the construction of ghost-free nonlinear massive spin-2 interactions solved a long outstanding problem in classical field theory. The consistent formulation requires a second rank-two tensor (or metric) and therefore has the form of a bimetric theory. Besides providing the solution to an old problem in field ... |
gr-qc/0212070 | Roustam Zalaletdinov | Roustam Zalaletdinov | Averaging out Inhomogeneous Newtonian Cosmologies: I. Fluid Mechanics
and the Navier-Stokes Equation | 31 pages, LaTeX | null | null | null | gr-qc physics.flu-dyn | null | The basic concepts and equations of classical fluid mechanics are presented
in the form necessary for the formulation of Newtonian cosmology and for
derivation and analysis of a system of the averaged Navier-Stokes-Poisson
equations. A special attention is paid to the analytic formulation of the
definitions and equat... | [
{
"created": "Tue, 17 Dec 2002 08:29:02 GMT",
"version": "v1"
},
{
"created": "Wed, 18 Dec 2002 03:40:05 GMT",
"version": "v2"
}
] | 2007-05-23 | [
[
"Zalaletdinov",
"Roustam",
""
]
] | The basic concepts and equations of classical fluid mechanics are presented in the form necessary for the formulation of Newtonian cosmology and for derivation and analysis of a system of the averaged Navier-Stokes-Poisson equations. A special attention is paid to the analytic formulation of the definitions and equatio... |
2003.06714 | Saheb Soroushfar | Saheb Soroushfar, Sudhaker Upadhyay | Phase transition of a charged AdS black hole with a global monopole
through geometrical thermodynamics | 17 pages, 30 figures, Accepted for publication in Physics Letters B | Physics Letters B 804 (2020) 135360 | 10.1016/j.physletb.2020.135360 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In order to study the phase transition through thermodynamic geometry, we
consider the charged AdS black hole with global monopole. We first introduce
thermodynamics of charged AdS black hole with global monopole by discussing the
dependence of Hawking temperature, specific heat and P-v curve on horizon
radius and mo... | [
{
"created": "Sat, 14 Mar 2020 22:31:09 GMT",
"version": "v1"
}
] | 2020-03-19 | [
[
"Soroushfar",
"Saheb",
""
],
[
"Upadhyay",
"Sudhaker",
""
]
] | In order to study the phase transition through thermodynamic geometry, we consider the charged AdS black hole with global monopole. We first introduce thermodynamics of charged AdS black hole with global monopole by discussing the dependence of Hawking temperature, specific heat and P-v curve on horizon radius and mono... |
gr-qc/0701068 | Mariam Bouhmadi-Lopez | Mariam Bouhmadi-Lopez and Paulo Vargas Moniz | On the thermal boundary condition of the wave function of the Universe | 3 pages, 3 figures, contribution to the proceedings of MG11, 23-29
July 2006, Berlin, Germany | null | 10.1142/9789812834300_0281 | null | gr-qc | null | We broaden the domain of application of the recently proposed thermal
boundary condition of the wave function of the Universe, which has been
suggested as the basis of a dynamical selection principle on the landscape of
string solutions.
| [
{
"created": "Fri, 12 Jan 2007 12:53:21 GMT",
"version": "v1"
}
] | 2016-11-15 | [
[
"Bouhmadi-Lopez",
"Mariam",
""
],
[
"Moniz",
"Paulo Vargas",
""
]
] | We broaden the domain of application of the recently proposed thermal boundary condition of the wave function of the Universe, which has been suggested as the basis of a dynamical selection principle on the landscape of string solutions. |
gr-qc/0402004 | Rom\`an R. Zapatrin | Georgy Parfionov, Yury Romashev | Geometrical Incompatibility of Quantum Measurements | 7 pages, LaTeX2e | null | null | null | gr-qc | null | The problem of quantization of general relativity is considered in the
framework of noncommutative differential geometry. Operator analogues for
interval, scalar curvature, values of the Einstein tensor are proposed. Quantum
measurements of these observables lead to a paradox: different procedures of
measurements can... | [
{
"created": "Mon, 2 Feb 2004 09:14:02 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Parfionov",
"Georgy",
""
],
[
"Romashev",
"Yury",
""
]
] | The problem of quantization of general relativity is considered in the framework of noncommutative differential geometry. Operator analogues for interval, scalar curvature, values of the Einstein tensor are proposed. Quantum measurements of these observables lead to a paradox: different procedures of measurements can s... |
0806.3744 | Leonid Verozub V | Leonid Verozub | On super-massive objects without event horizon | 7 pages, 1 figure. Some additions have been made | IL NUOVO CIMENTO, Vol. 123 B, N. 12 (2008) | 10.1393/ncb/i2008-10712-6 | null | gr-qc astro-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | This paper aims to show the possibility of the existence of super-massive
compact objects with radii less than the Schwarzschild one, which is one of the
principal consequences of the author's geodesic-invariant gravitation equations
(Ann. Phys. (Berlin), 17 (2008) 28). The physical interpretation of the
solutions of... | [
{
"created": "Tue, 24 Jun 2008 18:45:40 GMT",
"version": "v1"
},
{
"created": "Wed, 30 Jul 2008 13:05:40 GMT",
"version": "v2"
},
{
"created": "Wed, 17 Jun 2009 11:24:06 GMT",
"version": "v3"
}
] | 2015-05-13 | [
[
"Verozub",
"Leonid",
""
]
] | This paper aims to show the possibility of the existence of super-massive compact objects with radii less than the Schwarzschild one, which is one of the principal consequences of the author's geodesic-invariant gravitation equations (Ann. Phys. (Berlin), 17 (2008) 28). The physical interpretation of the solutions of t... |
gr-qc/0110006 | Matthew D. Duez | Matthew D. Duez, Thomas W. Baumgarte, Stuart L. Shapiro, Masaru
Shibata, and Koji Uryu | Comparing the inspiral of irrotational and corotational binary neutron
stars | 9 pages, 5 figures, to be published in Physical Review D | Phys.Rev. D65 (2002) 024016 | 10.1103/PhysRevD.65.024016 | null | gr-qc astro-ph | null | We model the adiabatic inspiral of relativistic binary neutron stars in a
quasi-equilibrium (QE) approximation, and compute the gravitational wavetrain
from the late phase of the inspiral. We compare corotational and irrotational
sequences and find a significant difference in the inspiral rate, which is
almost entire... | [
{
"created": "Sun, 30 Sep 2001 20:22:05 GMT",
"version": "v1"
}
] | 2009-11-07 | [
[
"Duez",
"Matthew D.",
""
],
[
"Baumgarte",
"Thomas W.",
""
],
[
"Shapiro",
"Stuart L.",
""
],
[
"Shibata",
"Masaru",
""
],
[
"Uryu",
"Koji",
""
]
] | We model the adiabatic inspiral of relativistic binary neutron stars in a quasi-equilibrium (QE) approximation, and compute the gravitational wavetrain from the late phase of the inspiral. We compare corotational and irrotational sequences and find a significant difference in the inspiral rate, which is almost entirely... |
0907.3914 | Edward Green | Edward Lee Green | Unified Field Theory From Enlarged Transformation Group. The Covariant
Derivative for Conservative Coordinate Transformations and Local Frame
Transformations | Aug 25 replacement has corrected margin widths | Int.J.Theor.Phys.48:323-336,2009 | 10.1007/s10773-008-9805-z | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Pandres has developed a theory in which the geometrical structure of a real
four-dimensional space-time is expressed by a real orthonormal tetrad, and the
group of diffeomorphisms is replaced by a larger group called the conservation
group. This paper extends the geometrical foundation for Pandres' theory by
developi... | [
{
"created": "Wed, 22 Jul 2009 19:42:31 GMT",
"version": "v1"
},
{
"created": "Tue, 25 Aug 2009 15:38:15 GMT",
"version": "v2"
}
] | 2009-08-25 | [
[
"Green",
"Edward Lee",
""
]
] | Pandres has developed a theory in which the geometrical structure of a real four-dimensional space-time is expressed by a real orthonormal tetrad, and the group of diffeomorphisms is replaced by a larger group called the conservation group. This paper extends the geometrical foundation for Pandres' theory by developing... |
1008.5192 | Elias Okon | Elias Okon and Craig Callender | Does Quantum Mechanics Clash with the Equivalence Principle - and Does
it Matter? | 12 pages | Euro Jnl Phil Sci (2011) 1:133 | 10.1007/s13194-010-0009-z | null | gr-qc quant-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | With an eye on developing a quantum theory of gravity, many physicists have
recently searched for quantum challenges to the equivalence principle of
general relativity. However, as historians and philosophers of science are well
aware, the principle of equivalence is not so clear. When clarified, we think
quantum tes... | [
{
"created": "Tue, 31 Aug 2010 00:24:12 GMT",
"version": "v1"
}
] | 2014-02-17 | [
[
"Okon",
"Elias",
""
],
[
"Callender",
"Craig",
""
]
] | With an eye on developing a quantum theory of gravity, many physicists have recently searched for quantum challenges to the equivalence principle of general relativity. However, as historians and philosophers of science are well aware, the principle of equivalence is not so clear. When clarified, we think quantum tests... |
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