id stringlengths 9 13 | submitter stringlengths 1 64 ⌀ | authors stringlengths 5 22.9k | title stringlengths 4 245 | comments stringlengths 1 548 ⌀ | journal-ref stringlengths 4 362 ⌀ | doi stringlengths 12 82 ⌀ | report-no stringlengths 2 281 ⌀ | categories stringclasses 793
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2004.05806 | Chun-Hung Chen | Chun-Hung Chen, Hing-Tong Cho and Alan S. Cornell | A new (original) set of Quasi-normal modes in spherically symmetric AdS
black hole spacetimes | 21 pages, 3 figures and 8 tables, v2: some comments and references
added | Chinese Journal of Physics Volume 67, October 2020, Pages 646-656 | 10.1016/j.cjph.2020.08.015 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | From black hole perturbation theory, quasi-normal modes (QNMs) in spherically
symmetric AdS black hole spacetimes are usually studied with the Horowitz and
Hubeny methods [1] by imposing the Dirichlet or vanishing energy flux boundary
conditions. This method was constructed using the scalar perturbation case and
box-... | [
{
"created": "Mon, 13 Apr 2020 07:44:36 GMT",
"version": "v1"
},
{
"created": "Mon, 8 Jun 2020 15:08:18 GMT",
"version": "v2"
}
] | 2020-09-22 | [
[
"Chen",
"Chun-Hung",
""
],
[
"Cho",
"Hing-Tong",
""
],
[
"Cornell",
"Alan S.",
""
]
] | From black hole perturbation theory, quasi-normal modes (QNMs) in spherically symmetric AdS black hole spacetimes are usually studied with the Horowitz and Hubeny methods [1] by imposing the Dirichlet or vanishing energy flux boundary conditions. This method was constructed using the scalar perturbation case and box-li... |
gr-qc/9607009 | Sam | Hermann Bondi and Joseph Samuel | The Lense--Thirring Effect and Mach's Principle | 13 pages, Latex file, no figures | null | 10.1016/S0375-9601(97)00117-5 | RRI-96-19 | gr-qc | null | We respond to a recent paper by Rindler on the ``Anti--Machian'' nature of
the Lense--Thirring effect. We remark that his conclusion depends crucially on
the particular formulation of Mach's principle used.
| [
{
"created": "Thu, 4 Jul 1996 10:08:21 GMT",
"version": "v1"
}
] | 2009-10-28 | [
[
"Bondi",
"Hermann",
""
],
[
"Samuel",
"Joseph",
""
]
] | We respond to a recent paper by Rindler on the ``Anti--Machian'' nature of the Lense--Thirring effect. We remark that his conclusion depends crucially on the particular formulation of Mach's principle used. |
1706.04989 | Antoine Leh\'ebel | Antoine Leh\'ebel, Eugeny Babichev, Christos Charmousis | A no-hair theorem for stars in Horndeski theories | 10 pages, 1 figure; important reference added in v2 | JCAP 1707 (2017) no.07, 037 | 10.1088/1475-7516/2017/07/037 | LPT-Orsay-17-31 | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider a generic scalar-tensor theory involving a shift-symmetric scalar
field and minimally coupled matter fields. We prove that the Noether current
associated with shift-symmetry vanishes in regular, spherically symmetric and
static spacetimes. We use this fact to prove the absence of scalar hair for
spherical... | [
{
"created": "Thu, 15 Jun 2017 17:50:56 GMT",
"version": "v1"
},
{
"created": "Mon, 3 Jul 2017 12:21:16 GMT",
"version": "v2"
}
] | 2017-07-25 | [
[
"Lehébel",
"Antoine",
""
],
[
"Babichev",
"Eugeny",
""
],
[
"Charmousis",
"Christos",
""
]
] | We consider a generic scalar-tensor theory involving a shift-symmetric scalar field and minimally coupled matter fields. We prove that the Noether current associated with shift-symmetry vanishes in regular, spherically symmetric and static spacetimes. We use this fact to prove the absence of scalar hair for spherically... |
2405.05321 | Paulo Luz | Paulo Luz and Sante Carloni | Gauge invariant perturbations of static spatially compact LRS II
spacetimes | 51 pages | null | null | null | gr-qc astro-ph.SR math-ph math.MP | http://creativecommons.org/licenses/by/4.0/ | We present a framework to describe completely general first-order
perturbations of static, spatially compact, and locally rotationally symmetric
class II spacetimes within the theory of general relativity. The perturbation
variables are by construction covariant and identification gauge invariant and
encompass the ge... | [
{
"created": "Wed, 8 May 2024 18:00:06 GMT",
"version": "v1"
}
] | 2024-05-10 | [
[
"Luz",
"Paulo",
""
],
[
"Carloni",
"Sante",
""
]
] | We present a framework to describe completely general first-order perturbations of static, spatially compact, and locally rotationally symmetric class II spacetimes within the theory of general relativity. The perturbation variables are by construction covariant and identification gauge invariant and encompass the geom... |
gr-qc/9409001 | null | J.D. Brown and K.V. Kuchar | Dust as a Standard of Space and Time in Canonical Quantum Gravity | 56 pages (REVTEX file + 3 postscipt figure files) | Phys.Rev.D51:5600-5629,1995 | 10.1103/PhysRevD.51.5600 | null | gr-qc | null | The coupling of the metric to an incoherent dust introduces into spacetime a
privileged dynamical reference frame and time foliation. The comoving
coordinates of the dust particles and the proper time along the dust worldlines
become canonical coordinates in the phase space of the system. The Hamiltonian
constraint c... | [
{
"created": "Thu, 1 Sep 1994 14:05:42 GMT",
"version": "v1"
}
] | 2009-07-09 | [
[
"Brown",
"J. D.",
""
],
[
"Kuchar",
"K. V.",
""
]
] | The coupling of the metric to an incoherent dust introduces into spacetime a privileged dynamical reference frame and time foliation. The comoving coordinates of the dust particles and the proper time along the dust worldlines become canonical coordinates in the phase space of the system. The Hamiltonian constraint can... |
gr-qc/0611075 | Dario Benedetti | D. Benedetti, R. Loll | Quantum Gravity and Matter: Counting Graphs on Causal Dynamical
Triangulations | 40 pages, 15 figures, 13 tables | Gen.Rel.Grav.39:863-898,2007 | 10.1007/s10714-007-0425-3 | null | gr-qc hep-lat hep-th | null | An outstanding challenge for models of non-perturbative quantum gravity is
the consistent formulation and quantitative evaluation of physical phenomena in
a regime where geometry and matter are strongly coupled. After developing
appropriate technical tools, one is interested in measuring and classifying how
the quant... | [
{
"created": "Tue, 14 Nov 2006 11:16:17 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Benedetti",
"D.",
""
],
[
"Loll",
"R.",
""
]
] | An outstanding challenge for models of non-perturbative quantum gravity is the consistent formulation and quantitative evaluation of physical phenomena in a regime where geometry and matter are strongly coupled. After developing appropriate technical tools, one is interested in measuring and classifying how the quantum... |
2203.15564 | Yan Peng | Guohua Liu, Yan Peng | No scalar condensations outside reflecting stars with coupling terms
from Ginzburg-Landau models | 5 pages | null | 10.1016/j.nuclphysb.2022.115837 | null | gr-qc hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider static scalar fields coupled to the gradient where the coupling
also appears in next-to-leading order Ginzburg-Landau models. We study
condensation behaviors of scalar fields outside regular compact reflecting
stars in the asymptotically flat background. For non-negative coupling
parameters, we prove that... | [
{
"created": "Mon, 28 Mar 2022 12:22:35 GMT",
"version": "v1"
}
] | 2022-06-08 | [
[
"Liu",
"Guohua",
""
],
[
"Peng",
"Yan",
""
]
] | We consider static scalar fields coupled to the gradient where the coupling also appears in next-to-leading order Ginzburg-Landau models. We study condensation behaviors of scalar fields outside regular compact reflecting stars in the asymptotically flat background. For non-negative coupling parameters, we prove that t... |
gr-qc/0411098 | Donato Bini | Donato Bini, Christian Cherubini, Andrea Geralico, Bahram Mashhoon | Spinning particles in the vacuum C metric | IOP macros used, eps figures n. 3 | Class.Quant.Grav.22:709-722,2005 | 10.1088/0264-9381/22/4/005 | null | gr-qc | null | The motion of a spinning test particle given by the Mathisson-Papapetrou
equations is studied on an exterior vacuum C metric background spacetime
describing the accelerated motion of a spherically symmetric gravitational
source. We consider circular orbits of the particle around the direction of
acceleration of the s... | [
{
"created": "Fri, 19 Nov 2004 10:10:04 GMT",
"version": "v1"
}
] | 2009-01-12 | [
[
"Bini",
"Donato",
""
],
[
"Cherubini",
"Christian",
""
],
[
"Geralico",
"Andrea",
""
],
[
"Mashhoon",
"Bahram",
""
]
] | The motion of a spinning test particle given by the Mathisson-Papapetrou equations is studied on an exterior vacuum C metric background spacetime describing the accelerated motion of a spherically symmetric gravitational source. We consider circular orbits of the particle around the direction of acceleration of the sou... |
2312.06588 | Leandro Lessa | L. A. Lessa, R. V. Maluf, J. E. G. Silva, and C. A. S. Almeida | Braneworlds in Warped Einsteinian Cubic Gravity | null | JCAP 05 (2024) 123 | 10.1088/1475-7516/2024/05/123 | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | Einstenian cubic gravity (ECG) is a modified theory of gravity constructed
with cubic contractions of the curvature tensor. This theory has the remarkable
feature of having the same two propagating degrees of freedom of Einstein
gravity (EG), at the perturbative level on maximally symmetric spacetimes. The
additional... | [
{
"created": "Mon, 11 Dec 2023 18:19:59 GMT",
"version": "v1"
},
{
"created": "Sat, 10 Feb 2024 23:37:16 GMT",
"version": "v2"
},
{
"created": "Thu, 30 May 2024 22:47:08 GMT",
"version": "v3"
}
] | 2024-06-04 | [
[
"Lessa",
"L. A.",
""
],
[
"Maluf",
"R. V.",
""
],
[
"Silva",
"J. E. G.",
""
],
[
"Almeida",
"C. A. S.",
""
]
] | Einstenian cubic gravity (ECG) is a modified theory of gravity constructed with cubic contractions of the curvature tensor. This theory has the remarkable feature of having the same two propagating degrees of freedom of Einstein gravity (EG), at the perturbative level on maximally symmetric spacetimes. The additional u... |
2104.04010 | Hyun Lim | Aaron Held and Hyun Lim | Nonlinear Dynamics of Quadratic Gravity in Spherical Symmetry | 9 pages (including 7 figures) with one appendix, references, and a
supplementary file; revised to match PRD version | Phys. Rev. D 104, 084075 (2021) | 10.1103/PhysRevD.104.084075 | LA-UR-21-22739, Imperial/TP/2021/AH/03 | gr-qc | http://creativecommons.org/licenses/by/4.0/ | We present the first numerically stable nonlinear evolution for the
leading-order gravitational effective field theory (Quadratic Gravity) in the
spherically-symmetric sector. The formulation relies on (i) harmonic gauge to
cast the evolution system into quasi-linear form (ii) the Cartoon method to
reduce to spherica... | [
{
"created": "Thu, 8 Apr 2021 18:59:57 GMT",
"version": "v1"
},
{
"created": "Wed, 20 Oct 2021 15:17:07 GMT",
"version": "v2"
}
] | 2021-10-22 | [
[
"Held",
"Aaron",
""
],
[
"Lim",
"Hyun",
""
]
] | We present the first numerically stable nonlinear evolution for the leading-order gravitational effective field theory (Quadratic Gravity) in the spherically-symmetric sector. The formulation relies on (i) harmonic gauge to cast the evolution system into quasi-linear form (ii) the Cartoon method to reduce to spherical ... |
gr-qc/0310087 | Hernando Quevedo | Ruben D. Zarate and Hernando Quevedo | Thermodynamic scheme of inhomogeneous perfect fluid mixtures | null | Class.Quant.Grav. 21 (2004) 197-206 | 10.1088/0264-9381/21/1/013 | null | gr-qc | null | We analyze the compatibility between the geometrodynamics and thermodynamics
of a binary mixture of perfect fluids which describe inhomogeneous cosmological
models. We generalize the thermodynamic scheme of general relativity to include
the chemical potential of the fluid mixture with non-vanishing entropy
production... | [
{
"created": "Thu, 16 Oct 2003 19:54:07 GMT",
"version": "v1"
}
] | 2009-11-10 | [
[
"Zarate",
"Ruben D.",
""
],
[
"Quevedo",
"Hernando",
""
]
] | We analyze the compatibility between the geometrodynamics and thermodynamics of a binary mixture of perfect fluids which describe inhomogeneous cosmological models. We generalize the thermodynamic scheme of general relativity to include the chemical potential of the fluid mixture with non-vanishing entropy production. ... |
1210.7173 | Eric Chassande-Mottin | Eric Chassande-Mottin (for the LIGO Scientific Collaboration, and for
the Virgo Collaboration) | Data analysis challenges in transient gravitational-wave astronomy | 7 pages, 5 figures, Proceedings of the ARENA'12 Conference, few minor
changes | null | 10.1063/1.4807558 | LIGO-P1200135; VIR-0379C-12 | gr-qc astro-ph.IM physics.data-an | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Gravitational waves are radiative solutions of space-time dynamics predicted
by Einstein's theory of General Relativity. A world-wide array of large-scale
and highly sensitive interferometric detectors constantly scrutinizes the
geometry of the local space-time with the hope to detect deviations that would
signal an ... | [
{
"created": "Fri, 26 Oct 2012 16:07:29 GMT",
"version": "v1"
},
{
"created": "Sun, 3 Mar 2013 17:48:41 GMT",
"version": "v2"
}
] | 2019-08-15 | [
[
"Chassande-Mottin",
"Eric",
"",
"for the LIGO Scientific Collaboration, and for\n the Virgo Collaboration"
]
] | Gravitational waves are radiative solutions of space-time dynamics predicted by Einstein's theory of General Relativity. A world-wide array of large-scale and highly sensitive interferometric detectors constantly scrutinizes the geometry of the local space-time with the hope to detect deviations that would signal an im... |
2105.00530 | Fabrizio Di Giovanni | Fabrizio Di Giovanni, Saeed Fakhry, Nicolas Sanchis-Gual, Juan Carlos
Degollado, Jos\'e A. Font | A stabilization mechanism for excited fermion-boson stars | 11 pages, 16 figures | null | 10.1088/1361-6382/ac1b45 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study numerically the nonlinear stability of {\it excited} fermion-boson
stars in spherical symmetry. Such compound hypothetical stars, composed by
fermions and bosons, are gravitationally bound, regular, and static
configurations described within the coupled Einstein-Klein-Gordon-Euler
theoretical framework. The ... | [
{
"created": "Sun, 2 May 2021 18:44:31 GMT",
"version": "v1"
}
] | 2021-09-22 | [
[
"Di Giovanni",
"Fabrizio",
""
],
[
"Fakhry",
"Saeed",
""
],
[
"Sanchis-Gual",
"Nicolas",
""
],
[
"Degollado",
"Juan Carlos",
""
],
[
"Font",
"José A.",
""
]
] | We study numerically the nonlinear stability of {\it excited} fermion-boson stars in spherical symmetry. Such compound hypothetical stars, composed by fermions and bosons, are gravitationally bound, regular, and static configurations described within the coupled Einstein-Klein-Gordon-Euler theoretical framework. The ex... |
2208.01162 | Khalil El Bourakadi | Khalil El Bourakadi | Hubble tension and Reheating: Hybrid Inflation Implications | 6 pages, 3 figures | null | null | null | gr-qc astro-ph.CO | http://creativecommons.org/licenses/by/4.0/ | We investigate a new possible solution to the Hubble constant tension. we
propose a simple resolution to the problem assuming that a first-order phase
transition related to H0 transition occurred in the early Universe. The early
evolution of the Universe is a result of hybrid inflation that has lasted for a
specific ... | [
{
"created": "Mon, 1 Aug 2022 22:36:18 GMT",
"version": "v1"
},
{
"created": "Thu, 4 Aug 2022 13:48:02 GMT",
"version": "v2"
}
] | 2022-08-05 | [
[
"Bourakadi",
"Khalil El",
""
]
] | We investigate a new possible solution to the Hubble constant tension. we propose a simple resolution to the problem assuming that a first-order phase transition related to H0 transition occurred in the early Universe. The early evolution of the Universe is a result of hybrid inflation that has lasted for a specific pe... |
2006.04344 | Dong-han Yeom | Xiao Yan Chew, Gansukh Tumurtushaa, Dong-han Yeom | Euclidean wormholes in Gauss-Bonnet-dilaton gravity | 15 pages, 8 figures | null | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate Euclidean wormholes in Gauss-Bonnet-dilaton gravity to explain
the creation of the universe from nothing. We considered two types of dilaton
couplings (i.e., the string-inspired model and the Gaussian model) and we
obtained qualitatively similar results. There can exist Euclidean wormholes
that explain... | [
{
"created": "Mon, 8 Jun 2020 04:03:34 GMT",
"version": "v1"
}
] | 2020-06-09 | [
[
"Chew",
"Xiao Yan",
""
],
[
"Tumurtushaa",
"Gansukh",
""
],
[
"Yeom",
"Dong-han",
""
]
] | We investigate Euclidean wormholes in Gauss-Bonnet-dilaton gravity to explain the creation of the universe from nothing. We considered two types of dilaton couplings (i.e., the string-inspired model and the Gaussian model) and we obtained qualitatively similar results. There can exist Euclidean wormholes that explain t... |
gr-qc/0703019 | Myungseok Yoon | Wontae Kim and Myungseok Yoon | Transition from AdS universe to DS universe in the BPP model | 12 pages, 2 figures | JHEP 0704:098,2007 | 10.1088/1126-6708/2007/04/098 | null | gr-qc | null | It can be shown that in the BPP model the smooth phase transition from the
asymptotically decelerated AdS universe to the asymptotically accelerated DS
universe is possible by solving the modified semiclassical equations of motion.
This transition comes from noncommutative Poisson algebra, which gives the
constant cu... | [
{
"created": "Sat, 3 Mar 2007 04:44:11 GMT",
"version": "v1"
}
] | 2010-10-27 | [
[
"Kim",
"Wontae",
""
],
[
"Yoon",
"Myungseok",
""
]
] | It can be shown that in the BPP model the smooth phase transition from the asymptotically decelerated AdS universe to the asymptotically accelerated DS universe is possible by solving the modified semiclassical equations of motion. This transition comes from noncommutative Poisson algebra, which gives the constant curv... |
1208.4083 | Babak Vakili | Babak Vakili | Scalar field quantum cosmology: a Schr\"{o}dinger picture | 12 pages, 13 figures, minor changes. arXiv admin note: text overlap
with arXiv:1104.1163, arXiv:1004.0306 | Phys. Lett. B 718 (2012) 34 | 10.1016/j.physletb.2012.10.036 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the classical and quantum models of a scalar field
Friedmann-Robertson-Walker (FRW) cosmology with an eye to the issue of time
problem in quantum cosmology. We introduce a canonical transformation on the
scalar field sector of the action such that the momentum conjugate to the new
canonical variable appears ... | [
{
"created": "Thu, 16 Aug 2012 15:21:32 GMT",
"version": "v1"
},
{
"created": "Tue, 30 Oct 2012 04:38:11 GMT",
"version": "v2"
}
] | 2015-06-11 | [
[
"Vakili",
"Babak",
""
]
] | We study the classical and quantum models of a scalar field Friedmann-Robertson-Walker (FRW) cosmology with an eye to the issue of time problem in quantum cosmology. We introduce a canonical transformation on the scalar field sector of the action such that the momentum conjugate to the new canonical variable appears li... |
2010.13067 | Francois Larrouturou | Antonio De Felice, Andreas Doll, Fran\c{c}ois Larrouturou, Shinji
Mukohyama | Black holes in a type-II minimally modified gravity | 14 pages, no figures | JCAP 03(2021)004 | 10.1088/1475-7516/2021/03/004 | YITP-20-131, IPMU20-0111 | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In the context of the recently proposed type-II minimally modified gravity
theory, i.e. a metric theory of gravity with two local physical degrees of
freedom that does not possess an Einstein frame, we study spherically symmetric
vacuum solutions to explore the strong gravity regime. Despite the absence of
extra degr... | [
{
"created": "Sun, 25 Oct 2020 08:38:38 GMT",
"version": "v1"
},
{
"created": "Sat, 9 Jan 2021 11:26:52 GMT",
"version": "v2"
}
] | 2021-03-12 | [
[
"De Felice",
"Antonio",
""
],
[
"Doll",
"Andreas",
""
],
[
"Larrouturou",
"François",
""
],
[
"Mukohyama",
"Shinji",
""
]
] | In the context of the recently proposed type-II minimally modified gravity theory, i.e. a metric theory of gravity with two local physical degrees of freedom that does not possess an Einstein frame, we study spherically symmetric vacuum solutions to explore the strong gravity regime. Despite the absence of extra degree... |
0809.3868 | Lau Loi So | Lau Loi So | Gravitational energy in small regions for the quasilocal expressions in
orthonormal frames | 6 | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The M$\o$ller tetrad gravitational energy-momentum expression was recently
evaluated for a small vacuum region using orthonormal frames adapted to Riemann
normal coordinates. However the result was not proportional to the Bel-Robinson
tensor $B_{\alpha\beta\mu\nu}$. Treating a modified quasilocal expressions in a
sim... | [
{
"created": "Tue, 23 Sep 2008 09:12:22 GMT",
"version": "v1"
}
] | 2008-09-24 | [
[
"So",
"Lau Loi",
""
]
] | The M$\o$ller tetrad gravitational energy-momentum expression was recently evaluated for a small vacuum region using orthonormal frames adapted to Riemann normal coordinates. However the result was not proportional to the Bel-Robinson tensor $B_{\alpha\beta\mu\nu}$. Treating a modified quasilocal expressions in a simil... |
1602.08292 | Reinoud Slagter | Reinoud Jan Slagter | Alignment of Quasar Polarizations on Large Scales Explained by Warped
Cosmic Strings | Revised version1 -- some minor corrections 7 pages-- no figures -- to
appear in JMP -- will be presented at "Hot topics in Modern Cosmology"
Spontaneous Workshop 10; May 2016 Carg\`ese. arXiv admin note: text overlap
with arXiv:1407.7505 | null | 10.4236/jmp.2016.76052 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The recently discovered alignment of quasar polarizations on very large
scales could possibly explained by considering cosmic strings on a warped five
dimensional spacetime. Compact objects, such as cosmic strings, could have
tremendous mass in the bulk, while their warped manifestations in the brane can
be consisten... | [
{
"created": "Fri, 26 Feb 2016 12:24:19 GMT",
"version": "v1"
},
{
"created": "Thu, 3 Mar 2016 22:44:49 GMT",
"version": "v2"
}
] | 2016-04-20 | [
[
"Slagter",
"Reinoud Jan",
""
]
] | The recently discovered alignment of quasar polarizations on very large scales could possibly explained by considering cosmic strings on a warped five dimensional spacetime. Compact objects, such as cosmic strings, could have tremendous mass in the bulk, while their warped manifestations in the brane can be consistent ... |
1802.05241 | null | The LIGO Scientific Collaboration and the Virgo Collaboration: B. P.
Abbott, R. Abbott, T. D. Abbott, F. Acernese, K. Ackley, C. Adams, T. Adams,
P. Addesso, R. X. Adhikari, V. B. Adya, C. Affeldt, M. Afrough, B. Agarwal,
M. Agathos, K. Agatsuma, N. Aggarwal, O. D. Aguiar, L. Aiello, A. Ain, B.
Allen, G. Allen,... | Full Band All-sky Search for Periodic Gravitational Waves in the O1 LIGO
Data | null | Phys. Rev. D 97, 102003 (2018) | 10.1103/PhysRevD.97.102003 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We report on a new all-sky search for periodic gravitational waves in the
frequency band 475-2000 Hz and with a frequency time derivative in the range of
[-1.0e-8, +1e-9] Hz/s. Potential signals could be produced by a nearby spinning
and slightly non-axisymmetric isolated neutron star in our galaxy.
This search use... | [
{
"created": "Wed, 14 Feb 2018 18:02:02 GMT",
"version": "v1"
}
] | 2018-05-16 | [
[
"The LIGO Scientific Collaboration",
"",
""
],
[
"the Virgo Collaboration",
"",
""
],
[
"Abbott",
"B. P.",
""
],
[
"Abbott",
"R.",
""
],
[
"Abbott",
"T. D.",
""
],
[
"Acernese",
"F.",
""
],
[
"Ackley",
"K.",
... | We report on a new all-sky search for periodic gravitational waves in the frequency band 475-2000 Hz and with a frequency time derivative in the range of [-1.0e-8, +1e-9] Hz/s. Potential signals could be produced by a nearby spinning and slightly non-axisymmetric isolated neutron star in our galaxy. This search uses th... |
1711.05191 | Lucas Gardai Collodel | Lucas G. Collodel, Burkhard Kleihaus, Jutta Kunz | Static Orbits in Rotating Spacetimes | null | Phys. Rev. Lett. 120, 201103 (2018) | 10.1103/PhysRevLett.120.201103 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We show that under certain conditions an axisymmetric rotating spacetime
contains a ring of points in the equatorial plane, where a particle at rest
with respect to an asymptotic static observer remains at rest in a static
orbit. We illustrate the emergence of such orbits for boson stars. Further
examples are wormhol... | [
{
"created": "Tue, 14 Nov 2017 16:56:40 GMT",
"version": "v1"
},
{
"created": "Fri, 1 Dec 2017 15:25:31 GMT",
"version": "v2"
}
] | 2018-05-23 | [
[
"Collodel",
"Lucas G.",
""
],
[
"Kleihaus",
"Burkhard",
""
],
[
"Kunz",
"Jutta",
""
]
] | We show that under certain conditions an axisymmetric rotating spacetime contains a ring of points in the equatorial plane, where a particle at rest with respect to an asymptotic static observer remains at rest in a static orbit. We illustrate the emergence of such orbits for boson stars. Further examples are wormholes... |
0809.1711 | Alex Nielsen | Alex B. Nielsen | Black holes without boundaries | 8 pages. Invited essay for special edition of the International
Journal of Modern Physics D | Int.J.Mod.Phys.D17:2359-2366,2009 | 10.1142/S0218271808014205 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We discuss some of the drawbacks of using event horizons to define black
holes and suggest ways in which black holes can be described without event
horizons, using trapping horizons. We show that these trapping horizons give
rise to thermodynamic behavior and possibly Hawking radiation too. This raises
the issue of w... | [
{
"created": "Wed, 10 Sep 2008 05:45:52 GMT",
"version": "v1"
}
] | 2009-03-20 | [
[
"Nielsen",
"Alex B.",
""
]
] | We discuss some of the drawbacks of using event horizons to define black holes and suggest ways in which black holes can be described without event horizons, using trapping horizons. We show that these trapping horizons give rise to thermodynamic behavior and possibly Hawking radiation too. This raises the issue of whe... |
1005.5654 | Mercedes Martin-Benito | L.J. Garay, M. Mart\'in-Benito, and G.A. Mena Marug\'an | Inhomogeneous Loop Quantum Cosmology: Hybrid Quantization of the Gowdy
Model | 16 pages, version accepted for publication in Physical Review D | Phys.Rev.D82:044048,2010 | 10.1103/PhysRevD.82.044048 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The Gowdy cosmologies provide a suitable arena to further develop Loop
Quantum Cosmology, allowing the presence of inhomogeneities. For the particular
case of Gowdy spacetimes with the spatial topology of a three-torus and a
content of linearly polarized gravitational waves, we detail a hybrid quantum
theory in which... | [
{
"created": "Mon, 31 May 2010 10:32:54 GMT",
"version": "v1"
},
{
"created": "Tue, 21 Sep 2010 10:17:58 GMT",
"version": "v2"
}
] | 2010-09-22 | [
[
"Garay",
"L. J.",
""
],
[
"Martín-Benito",
"M.",
""
],
[
"Marugán",
"G. A. Mena",
""
]
] | The Gowdy cosmologies provide a suitable arena to further develop Loop Quantum Cosmology, allowing the presence of inhomogeneities. For the particular case of Gowdy spacetimes with the spatial topology of a three-torus and a content of linearly polarized gravitational waves, we detail a hybrid quantum theory in which w... |
gr-qc/0503059 | Mariano Cadoni | Mariano Cadoni, Salvatore Mignemi | Two-dimensional description of D-dimensional static black holes with
pointlike sources | References added, some misprints corrected, some points clarified | Mod.Phys.Lett. A20 (2005) 2919-2924 | 10.1142/S0217732305018931 | null | gr-qc | null | We derive two-dimensional (2D) solutions of a generic dilaton gravity model
coupled with matter, which describe D-dimensional static black holes with
pointlike sources. The equality between the mass M of the D-dimensional
gravitational solution and the mass m of the source can be preserved also at
the level of the 2D... | [
{
"created": "Mon, 14 Mar 2005 13:53:35 GMT",
"version": "v1"
},
{
"created": "Tue, 22 Mar 2005 09:55:14 GMT",
"version": "v2"
}
] | 2009-11-11 | [
[
"Cadoni",
"Mariano",
""
],
[
"Mignemi",
"Salvatore",
""
]
] | We derive two-dimensional (2D) solutions of a generic dilaton gravity model coupled with matter, which describe D-dimensional static black holes with pointlike sources. The equality between the mass M of the D-dimensional gravitational solution and the mass m of the source can be preserved also at the level of the 2D g... |
1408.4611 | Uma Papnoi | Sushant G. Ghosh, Uma Papnoi and Sunil D. Maharaj | Clouds of strings in third-order Lovelock gravity | 13 pages, 7 figures, Accepted for publication in Physical Review D | null | 10.1103/PhysRevD.90.044068 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Lovelock theory is a natural extension of the Einstein theory of general
relativity to higher dimensions in which the first and second orders
correspond, respectively, to general relativity and Einstein-Gauss-Bonnet
gravity. We present exact black hole solutions of $D\geq 4$-dimensional
spacetime for first-, second-,... | [
{
"created": "Wed, 20 Aug 2014 11:37:33 GMT",
"version": "v1"
}
] | 2015-06-22 | [
[
"Ghosh",
"Sushant G.",
""
],
[
"Papnoi",
"Uma",
""
],
[
"Maharaj",
"Sunil D.",
""
]
] | Lovelock theory is a natural extension of the Einstein theory of general relativity to higher dimensions in which the first and second orders correspond, respectively, to general relativity and Einstein-Gauss-Bonnet gravity. We present exact black hole solutions of $D\geq 4$-dimensional spacetime for first-, second-, a... |
gr-qc/0101019 | Cyril Cartier | C.Cartier, E.J.Copeland and M.Gasperini | Gravitational waves in non-singular string cosmologies | 24 pages, 7 figures | Nucl.Phys. B607 (2001) 406-428 | 10.1016/S0550-3213(01)00182-1 | null | gr-qc astro-ph hep-th | null | We study the evolution of tensor metric fluctuations in a class of
non-singular models based on the string effective action, by including in the
perturbation equation the higher-derivative and loop corrections needed to
regularise the background solutions. We discuss the effects of such
higher-order corrections on th... | [
{
"created": "Fri, 5 Jan 2001 15:22:25 GMT",
"version": "v1"
}
] | 2009-11-07 | [
[
"Cartier",
"C.",
""
],
[
"Copeland",
"E. J.",
""
],
[
"Gasperini",
"M.",
""
]
] | We study the evolution of tensor metric fluctuations in a class of non-singular models based on the string effective action, by including in the perturbation equation the higher-derivative and loop corrections needed to regularise the background solutions. We discuss the effects of such higher-order corrections on the ... |
1708.09456 | Sergei Kopeikin | Sergei M. Kopeikin (University of Missouri, USA), Igor Yu. Vlasov
(Moscow State University, Russia), Wen-Biao Han (Shanghai Astronomical
Observatory, China) | Normal gravity field in relativistic geodesy | 39 pages, no figures, accepted to Physical Review D | Phys. Rev. D 97, 045020 (2018) | 10.1103/PhysRevD.97.045020 | null | gr-qc physics.geo-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Modern geodesy is subject to a dramatic change from the Newtonian paradigm to
Einstein's theory of general relativity. This is motivated by the ongoing
advance in development of quantum sensors for applications in geodesy including
quantum gravimeters and gradientometers, atomic clocks and fiber optics for
making ult... | [
{
"created": "Wed, 30 Aug 2017 20:25:16 GMT",
"version": "v1"
},
{
"created": "Thu, 1 Feb 2018 22:20:40 GMT",
"version": "v2"
}
] | 2018-03-07 | [
[
"Kopeikin",
"Sergei M.",
"",
"University of Missouri, USA"
],
[
"Vlasov",
"Igor Yu.",
"",
"Moscow State University, Russia"
],
[
"Han",
"Wen-Biao",
"",
"Shanghai Astronomical\n Observatory, China"
]
] | Modern geodesy is subject to a dramatic change from the Newtonian paradigm to Einstein's theory of general relativity. This is motivated by the ongoing advance in development of quantum sensors for applications in geodesy including quantum gravimeters and gradientometers, atomic clocks and fiber optics for making ultra... |
gr-qc/0402120 | Antonio F. Ranada | Antonio F. Ranada | Pioneer acceleration and variation of light speed: experimental
situation | 33 pages, no figures | null | null | null | gr-qc | null | The situation with respect to the experiments is presented of a recently
proposed model that gives an explanation of the Pioneer anomalous acceleration
$a_{\rm P}$. The model is based on an idea already discovered by Einstein in
1907: the light speed depends on the gravitational potential $\Phi$, so that it
is larger... | [
{
"created": "Thu, 26 Feb 2004 16:19:28 GMT",
"version": "v1"
},
{
"created": "Wed, 3 Mar 2004 10:12:34 GMT",
"version": "v2"
}
] | 2016-08-31 | [
[
"Ranada",
"Antonio F.",
""
]
] | The situation with respect to the experiments is presented of a recently proposed model that gives an explanation of the Pioneer anomalous acceleration $a_{\rm P}$. The model is based on an idea already discovered by Einstein in 1907: the light speed depends on the gravitational potential $\Phi$, so that it is larger t... |
2011.03998 | Shun Jiang | Shun Jiang | Spontaneous Scalarization of Charged Gauss-Bonnet Black Holes: Analytic
Treatment | 6 pages | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Recently, by considering nontrivial couplings between scalar fields and the
Gauss-Bonnet invariant, the Schwarzschild black hole may allow regular scalar
hairy configurations. The numerical studies of this spontaneous scalarization
phenomenon show if the coupling parameter $\bar{\eta}$ belongs to discrete sets
$\bar{... | [
{
"created": "Sun, 8 Nov 2020 15:12:14 GMT",
"version": "v1"
}
] | 2020-11-10 | [
[
"Jiang",
"Shun",
""
]
] | Recently, by considering nontrivial couplings between scalar fields and the Gauss-Bonnet invariant, the Schwarzschild black hole may allow regular scalar hairy configurations. The numerical studies of this spontaneous scalarization phenomenon show if the coupling parameter $\bar{\eta}$ belongs to discrete sets $\bar{\e... |
1504.01867 | Shreya Banerjee | Shreya Banerjee, Nilesh Jayswal and Tejinder P. Singh | Cosmic Acceleration in a Model of Fourth Order Gravity | 29 pages, 19 figures, original Figs. 3 and 12 (b) removed; new Figs.
2(b), 8(b), 9, 10 (b), 12 (b) added; discussion added in Section V on
covariant conservation of field equations, conclusions unchanged, accepted
for publication in Phys. Rev. D | Phys. Rev. D 92, 084026 (2015) | 10.1103/PhysRevD.92.084026 | null | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate a fourth order model of gravity, having a free length
parameter, and no cosmological constant or dark energy. We consider
cosmological evolution of a flat Friedmann universe in this model for the case
that the length parameter is of the order of present Hubble radius. By making a
suitable choice for th... | [
{
"created": "Wed, 8 Apr 2015 08:50:23 GMT",
"version": "v1"
},
{
"created": "Sun, 26 Apr 2015 11:36:35 GMT",
"version": "v2"
},
{
"created": "Wed, 16 Sep 2015 05:50:12 GMT",
"version": "v3"
}
] | 2015-10-14 | [
[
"Banerjee",
"Shreya",
""
],
[
"Jayswal",
"Nilesh",
""
],
[
"Singh",
"Tejinder P.",
""
]
] | We investigate a fourth order model of gravity, having a free length parameter, and no cosmological constant or dark energy. We consider cosmological evolution of a flat Friedmann universe in this model for the case that the length parameter is of the order of present Hubble radius. By making a suitable choice for the ... |
1503.01884 | Alessandro Pesci | Alessandro Pesci | Null-null components of the generalized Einstein tensor for Lovelock
models | 9 pages; some references, and comments on the connection of the
results here with the null energy and null convergence conditions, added | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | For spherical symmetry, we provide expressions for the radial null-null
components of the generalized Einstein tensor $E_{ab}$ for Lovelock models for
diagonal $E_{ab}$ in terms of the metric and of the radial null-null components
of the Ricci tensor. We show they can be usefully employed for example in
obtaining the... | [
{
"created": "Fri, 6 Mar 2015 09:12:28 GMT",
"version": "v1"
},
{
"created": "Wed, 17 Feb 2016 10:17:46 GMT",
"version": "v2"
},
{
"created": "Tue, 14 Jun 2016 12:46:13 GMT",
"version": "v3"
}
] | 2016-06-15 | [
[
"Pesci",
"Alessandro",
""
]
] | For spherical symmetry, we provide expressions for the radial null-null components of the generalized Einstein tensor $E_{ab}$ for Lovelock models for diagonal $E_{ab}$ in terms of the metric and of the radial null-null components of the Ricci tensor. We show they can be usefully employed for example in obtaining the B... |
1603.02103 | Bogeun Gwak | Bogeun Gwak, Bum-Hoon Lee | The Upper Bound of Radiation Energy in the Myers-Perry Black Hole
Collision | 12 pages, 15 figures, published version in JHEP | JHEP 1607 (2016) 079 | 10.1007/JHEP07(2016)079 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We have investigated the upper bound of the radiation energy in the head-on
collision of two Myers-Perry black holes. Initially, the two black holes are
far away from each other, and they become one black hole after the collision.
We have obtained the upper bound of the radiation energy thermodynamically
allowed in t... | [
{
"created": "Mon, 7 Mar 2016 15:15:53 GMT",
"version": "v1"
},
{
"created": "Tue, 19 Jul 2016 14:11:14 GMT",
"version": "v2"
}
] | 2017-12-01 | [
[
"Gwak",
"Bogeun",
""
],
[
"Lee",
"Bum-Hoon",
""
]
] | We have investigated the upper bound of the radiation energy in the head-on collision of two Myers-Perry black holes. Initially, the two black holes are far away from each other, and they become one black hole after the collision. We have obtained the upper bound of the radiation energy thermodynamically allowed in the... |
2106.14219 | Aneta Wojnar | Aleksander Kozak, Aneta Wojnar | Metric-affine gravity effects on terrestrial (exo-)planets profiles | 14 pages, 16 figures | Phys. Rev. D 104, 084097, 2021 | 10.1103/PhysRevD.104.084097 | null | gr-qc astro-ph.EP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Mass-radius relations of homogeneous cold spheres are obtained for six solid
materials commonly found in terrestrial planets. An additional degeneracy in
the (exo-)planets' profiles is discussed together with their properties
concluded from our findings in the framework of Palatini $f(\mathcal R)$
gravity. Moreover, ... | [
{
"created": "Sun, 27 Jun 2021 12:28:39 GMT",
"version": "v1"
}
] | 2021-10-28 | [
[
"Kozak",
"Aleksander",
""
],
[
"Wojnar",
"Aneta",
""
]
] | Mass-radius relations of homogeneous cold spheres are obtained for six solid materials commonly found in terrestrial planets. An additional degeneracy in the (exo-)planets' profiles is discussed together with their properties concluded from our findings in the framework of Palatini $f(\mathcal R)$ gravity. Moreover, a ... |
1803.00442 | Shounak Ghosh | Suparna Biswas, Shounak Ghosh, B.K.Guha, F. Rahaman and Saibal Ray | Strange stars in Krori-Barua space-time under f(R; T) gravity | 31 pages, 12 figures, 4 tables, major revision | Annals of Physics Volume 401, article id. 1, 20 pp (2019) | 10.1016/j.aop.2018.12.004 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In the present work, we study about highly dense compact stars which are made
of quarks, specially strange quarks, adopting the Krori-Barua
(KB)~\cite{Krori1975} metric in the framework of $f(R,T)$ gravity. The equation
of state (EOS) of a strange star can be represented by the MIT bag model as
$p_r(r)=\frac{1}{3}[\r... | [
{
"created": "Wed, 28 Feb 2018 18:37:03 GMT",
"version": "v1"
},
{
"created": "Fri, 28 Dec 2018 15:42:39 GMT",
"version": "v2"
}
] | 2018-12-31 | [
[
"Biswas",
"Suparna",
""
],
[
"Ghosh",
"Shounak",
""
],
[
"Guha",
"B. K.",
""
],
[
"Rahaman",
"F.",
""
],
[
"Ray",
"Saibal",
""
]
] | In the present work, we study about highly dense compact stars which are made of quarks, specially strange quarks, adopting the Krori-Barua (KB)~\cite{Krori1975} metric in the framework of $f(R,T)$ gravity. The equation of state (EOS) of a strange star can be represented by the MIT bag model as $p_r(r)=\frac{1}{3}[\rho... |
gr-qc/0601035 | Slava G. Turyshev | Slava G. Turyshev, Michael Shao, and Kenneth L. Nordtvedt Jr | Science, Technology and Mission Design for the Laser Astrometric Test Of
Relativity | 56 pages, 32 figures, 5 tables. To appear in proceedings of the 359th
WE-Heraeus Seminar on "Lasers, Clocks, and Drag-Free: Technologies for Future
Exploration in Space and Tests of Gravity," ZARM, Bremen, Germany, May
30-June 1, 2005 | "Lasers, Clocks, and Drag-Free: Technologies for Future
Exploration in Space and Tests of Gravity", H. Dittus, C. Laemmerzahl, S.
Turyshev, eds. pp. 429-493 (Springer Verlag, 2006) | null | null | gr-qc | null | The Laser Astrometric Test Of Relativity (LATOR) is a Michelson-Morley-type
experiment designed to achieve a major improvement in the accuracy of the tests
of relativistic gravity in the solar system. By using a combination of
independent time-series of gravitational deflection of light in the immediate
proximity to ... | [
{
"created": "Tue, 10 Jan 2006 06:34:26 GMT",
"version": "v1"
},
{
"created": "Thu, 9 Feb 2006 04:20:49 GMT",
"version": "v2"
}
] | 2007-05-23 | [
[
"Turyshev",
"Slava G.",
""
],
[
"Shao",
"Michael",
""
],
[
"Nordtvedt",
"Kenneth L.",
"Jr"
]
] | The Laser Astrometric Test Of Relativity (LATOR) is a Michelson-Morley-type experiment designed to achieve a major improvement in the accuracy of the tests of relativistic gravity in the solar system. By using a combination of independent time-series of gravitational deflection of light in the immediate proximity to th... |
gr-qc/0402099 | Francisco Lobo | Jos\'e P. S. Lemos and Francisco S. N. Lobo | Plane symmetric traversable wormholes in an anti-de Sitter background | 14 pages, 8 figures, Revtex4. Two references added | Phys.Rev. D69 (2004) 104007 | 10.1103/PhysRevD.69.104007 | null | gr-qc astro-ph hep-th | null | We construct solutions of plane symmetric wormholes in the presence of a
negative cosmological constant by matching an interior spacetime to the
exterior anti-de Sitter vacuum solution. The spatial topology of this plane
symmetric wormhole can be planar, cylindrical and toroidal. As usual the null
energy condition is... | [
{
"created": "Tue, 24 Feb 2004 11:07:35 GMT",
"version": "v1"
},
{
"created": "Mon, 29 Mar 2004 12:01:51 GMT",
"version": "v2"
}
] | 2009-11-10 | [
[
"Lemos",
"José P. S.",
""
],
[
"Lobo",
"Francisco S. N.",
""
]
] | We construct solutions of plane symmetric wormholes in the presence of a negative cosmological constant by matching an interior spacetime to the exterior anti-de Sitter vacuum solution. The spatial topology of this plane symmetric wormhole can be planar, cylindrical and toroidal. As usual the null energy condition is n... |
1804.07570 | Martin Kolo\v{s} | Tursinbay Oteev, Martin Kolo\v{s}, Zden\v{e}k Stuchl\'ik | Charged string loops in Reissner-Nordstr\"{o}m black hole background | null | Z. Eur. Phys. J. C (2018) 78: 261 | 10.1140/epjc/s10052-018-5735-y | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the motion of current carrying charged string loops in the
Reissner-Nordstr\"{o}m black hole background combining the gravitational and
electromagnetic field. Introducing new electromagnetic interaction between
central charge and charged string loop makes the string loop equations of
motion to be non-integra... | [
{
"created": "Fri, 20 Apr 2018 12:05:48 GMT",
"version": "v1"
}
] | 2018-04-23 | [
[
"Oteev",
"Tursinbay",
""
],
[
"Kološ",
"Martin",
""
],
[
"Stuchlík",
"Zdeněk",
""
]
] | We study the motion of current carrying charged string loops in the Reissner-Nordstr\"{o}m black hole background combining the gravitational and electromagnetic field. Introducing new electromagnetic interaction between central charge and charged string loop makes the string loop equations of motion to be non-integrabl... |
1310.1935 | Kayll Lake | William Ballik, Kayll Lake | The Vector Volume and Black Holes | 18 pages twocolumn revtex 4-1 two figures. Final form to appear in
Phys Rev D | Phys. Rev. D 88, 104038 (2013) | 10.1103/PhysRevD.88.104038 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | By examining the rate of growth of an invariant volume $\mathcal V$ of some
spacetime region along a divergence-free vector field $v^\alpha$, we introduce
the concept of a "vector volume" $\mathcal{V}_v$. This volume can be defined in
various equivalent ways. For example, it can be given as $\mathrm d \mathcal
V(\mu)... | [
{
"created": "Mon, 7 Oct 2013 20:06:49 GMT",
"version": "v1"
},
{
"created": "Tue, 5 Nov 2013 20:46:00 GMT",
"version": "v2"
}
] | 2013-12-04 | [
[
"Ballik",
"William",
""
],
[
"Lake",
"Kayll",
""
]
] | By examining the rate of growth of an invariant volume $\mathcal V$ of some spacetime region along a divergence-free vector field $v^\alpha$, we introduce the concept of a "vector volume" $\mathcal{V}_v$. This volume can be defined in various equivalent ways. For example, it can be given as $\mathrm d \mathcal V(\mu) /... |
2210.02069 | Sebastian V\"olkel | Sebastian H. V\"olkel | Quasi-Normal Modes from Bound States: The Numerical Approach | 13 pages, 10 figures, 3 tables. Comments welcome! | Phys.Rev.D 106 (2022) 12, 124009 | 10.1103/PhysRevD.106.124009 | null | gr-qc quant-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | It is known that the spectrum of quasi-normal modes of potential barriers is
related to the spectrum of bound states of the corresponding potential wells.
This property has been widely used to compute black hole quasi-normal modes,
but it is limited to a few "approximate" potentials with certain transformation
proper... | [
{
"created": "Wed, 5 Oct 2022 07:43:30 GMT",
"version": "v1"
},
{
"created": "Fri, 12 May 2023 15:21:08 GMT",
"version": "v2"
}
] | 2023-05-15 | [
[
"Völkel",
"Sebastian H.",
""
]
] | It is known that the spectrum of quasi-normal modes of potential barriers is related to the spectrum of bound states of the corresponding potential wells. This property has been widely used to compute black hole quasi-normal modes, but it is limited to a few "approximate" potentials with certain transformation properti... |
1610.08049 | Aragam Prasanna R | A.R.Prasanna | Gravitational Waves- a new window to Cosmos | null | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | With the detection of Gravitational waves just about an year ago Einstein`s
general theory of relativity- a space-time theory of gravity, got established
on a firmer footing than any other theory in physics. Gravitational waves are
just propagating disturbances in the gravitational field of extremely strong
sources c... | [
{
"created": "Tue, 25 Oct 2016 08:46:01 GMT",
"version": "v1"
}
] | 2016-10-27 | [
[
"Prasanna",
"A. R.",
""
]
] | With the detection of Gravitational waves just about an year ago Einstein`s general theory of relativity- a space-time theory of gravity, got established on a firmer footing than any other theory in physics. Gravitational waves are just propagating disturbances in the gravitational field of extremely strong sources cau... |
2310.19655 | Christiane Klein | Peter Hintz and Christiane Klein | Universality of the quantum energy flux at the inner horizon of
asymptotically de Sitter black holes | 26 pages, 4 figures, Conclusion section added and typos corrected,
version as published in CQG | Class. Quantum Grav. 41 075006, 2024 | 10.1088/1361-6382/ad2cee, | null | gr-qc math-ph math.MP | http://creativecommons.org/licenses/by/4.0/ | Recently, it was found that the energy flux of a free scalar quantum field on
a Reissner-Nordstr\"om-de Sitter spacetime has a quadratic divergence towards
the inner horizon of the black hole. Moreover, the leading divergence was found
to be state independent as long as the spectral gap of the wave equation on the
sp... | [
{
"created": "Mon, 30 Oct 2023 15:39:14 GMT",
"version": "v1"
},
{
"created": "Fri, 8 Mar 2024 07:30:38 GMT",
"version": "v2"
}
] | 2024-03-11 | [
[
"Hintz",
"Peter",
""
],
[
"Klein",
"Christiane",
""
]
] | Recently, it was found that the energy flux of a free scalar quantum field on a Reissner-Nordstr\"om-de Sitter spacetime has a quadratic divergence towards the inner horizon of the black hole. Moreover, the leading divergence was found to be state independent as long as the spectral gap of the wave equation on the spac... |
2010.00446 | Mubasher Jamil | Koray D\"uzta\c{s}, Mubasher Jamil | Overcharging dilaton black holes in 2+1 dimensions to extremality and
beyond | 9 pages, 1 figure, to appear in IJGMMP | International Journal of Geometric Methods in Modern Physics Vol.
17, No. 14, 2050207 (2020) | 10.1142/S0219887820502072 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We test whether static charged dilaton black holes in 2+1 dimensions can be
turned into naked singularities, by sending in test particles from infinity. We
derive that overcharging is possible and generic for both extremal and nearly
extremal black holes. Our analysis also imply that nearly extremal charged
dilaton b... | [
{
"created": "Sun, 27 Sep 2020 06:51:28 GMT",
"version": "v1"
}
] | 2020-12-01 | [
[
"Düztaş",
"Koray",
""
],
[
"Jamil",
"Mubasher",
""
]
] | We test whether static charged dilaton black holes in 2+1 dimensions can be turned into naked singularities, by sending in test particles from infinity. We derive that overcharging is possible and generic for both extremal and nearly extremal black holes. Our analysis also imply that nearly extremal charged dilaton bla... |
1607.03704 | Bibhas Majhi Ranjan | Nilanjandev Bhaumik, Bibhas Ranjan Majhi | Interior volume of ($1+D$) dimensional Schwarzschild black hole | Title is modified, paper shortened, to appear in Int.J.Mod.Phys. A | Int. J. Mod. Phys. A 33 (2018) 1850011 | 10.1142/S0217751X18500112 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We calculate the maximum interior volume, enclosed by the event horizon, of a
($1+D$)-dimensional Schwarzschild black hole. Taking into account the mass
change due to Hawking radiation, we show that the volume increases towards the
end of the evaporation. This fact is not new as it has been observed earlier
for four ... | [
{
"created": "Wed, 13 Jul 2016 12:44:44 GMT",
"version": "v1"
},
{
"created": "Mon, 1 Jan 2018 06:16:35 GMT",
"version": "v2"
}
] | 2018-01-22 | [
[
"Bhaumik",
"Nilanjandev",
""
],
[
"Majhi",
"Bibhas Ranjan",
""
]
] | We calculate the maximum interior volume, enclosed by the event horizon, of a ($1+D$)-dimensional Schwarzschild black hole. Taking into account the mass change due to Hawking radiation, we show that the volume increases towards the end of the evaporation. This fact is not new as it has been observed earlier for four di... |
2111.15523 | Farruh Atamurotov | Uma Papnoi, Farruh Atamurotov | Rotating charged black hole in $4D$ Einstein-Gauss-Bonnet gravity:
Photon motion and its shadow | 13 pages, 8 figures | Physics of the Dark Universe 35, 100916 (2022) | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We construct a charged rotating black hole in 4D Einstein-Gauss-Bonnet (EGB)
gravity starting from charged black hole in 4D EGB gravity using complex
coordinate transformations suggested by Newman-Janis. Further, we have studied
the null geodesics to investigate the shape of the shadow cast by a rotating
charged blac... | [
{
"created": "Tue, 30 Nov 2021 16:08:15 GMT",
"version": "v1"
},
{
"created": "Mon, 14 Feb 2022 16:08:58 GMT",
"version": "v2"
}
] | 2022-02-15 | [
[
"Papnoi",
"Uma",
""
],
[
"Atamurotov",
"Farruh",
""
]
] | We construct a charged rotating black hole in 4D Einstein-Gauss-Bonnet (EGB) gravity starting from charged black hole in 4D EGB gravity using complex coordinate transformations suggested by Newman-Janis. Further, we have studied the null geodesics to investigate the shape of the shadow cast by a rotating charged black ... |
2304.01629 | Pradip Kumar Chattopadhyay Dr. | K. B. Goswami, A. Saha, P. K. Chattopadhyay, S. Karmakar | A new mass limit ($3.61~M_{\odot}$) of strange star admitting CFL
equation of state | 12 pages, 20 figures | null | null | null | gr-qc | http://creativecommons.org/licenses/by-nc-nd/4.0/ | A class of strange star is analyzed in the present article in hydrostatic
equilibrium whose state is defined by a CFL phase equation of state. We compare
our result with those obtained from MIT bag equation of state for strange quark
matter which are regarded as free particles. We note that if we consider quarks
to f... | [
{
"created": "Tue, 4 Apr 2023 08:38:12 GMT",
"version": "v1"
}
] | 2023-04-05 | [
[
"Goswami",
"K. B.",
""
],
[
"Saha",
"A.",
""
],
[
"Chattopadhyay",
"P. K.",
""
],
[
"Karmakar",
"S.",
""
]
] | A class of strange star is analyzed in the present article in hydrostatic equilibrium whose state is defined by a CFL phase equation of state. We compare our result with those obtained from MIT bag equation of state for strange quark matter which are regarded as free particles. We note that if we consider quarks to for... |
1212.5233 | Lin-Qing Chen | Lin-Qing Chen | Causal loop in the theory of relative locality | 5 pages, 3 figures; v3 matches the published version | null | 10.1103/PhysRevD.88.024052 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We find that relative locality, a recently proposed Planck-scale deformation
of special relativity, suffers from the existence of causal loops. A simple and
general construction of such on-shell loop processes is studied. We then show
that even in one of the weakest deformations of the Poincar\'e group in
relative lo... | [
{
"created": "Thu, 20 Dec 2012 20:35:56 GMT",
"version": "v1"
},
{
"created": "Sun, 3 Feb 2013 05:38:44 GMT",
"version": "v2"
},
{
"created": "Tue, 3 Dec 2013 19:55:26 GMT",
"version": "v3"
}
] | 2013-12-04 | [
[
"Chen",
"Lin-Qing",
""
]
] | We find that relative locality, a recently proposed Planck-scale deformation of special relativity, suffers from the existence of causal loops. A simple and general construction of such on-shell loop processes is studied. We then show that even in one of the weakest deformations of the Poincar\'e group in relative loca... |
1508.02385 | Ujjal Debnath | Ujjal Debnath | Particles Collision near Kerr-Sen Dilaton-Axion Black Hole | 11 pages | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Here we consider static, axially symmetric, rotating and charged Kerr-Sen
Dilaton-Axion black hole metric in generalized Boyer-Lindquist coordinates as
particle accelerators. We obtain the geodesic motions of particle. We find the
effective potential and discuss the circular orbit of a particle. We
investigate the ce... | [
{
"created": "Mon, 10 Aug 2015 07:32:51 GMT",
"version": "v1"
}
] | 2015-08-12 | [
[
"Debnath",
"Ujjal",
""
]
] | Here we consider static, axially symmetric, rotating and charged Kerr-Sen Dilaton-Axion black hole metric in generalized Boyer-Lindquist coordinates as particle accelerators. We obtain the geodesic motions of particle. We find the effective potential and discuss the circular orbit of a particle. We investigate the cent... |
2208.14609 | Yun Soo Myung | Yun Soo Myung | Quasibound states of massive scalar around the Kerr black hole | 19 pages, 6 figures | null | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this work, we obtain quasibound states of a massive scalar around the Kerr
black hole.
A massive scalar propagating around the Kerr black hole induces the
far-region potential with either a trapping well or a tiny well, which produces
a peak of resonance or a bound state in the far-region. The former represents
... | [
{
"created": "Wed, 31 Aug 2022 03:02:33 GMT",
"version": "v1"
}
] | 2022-09-01 | [
[
"Myung",
"Yun Soo",
""
]
] | In this work, we obtain quasibound states of a massive scalar around the Kerr black hole. A massive scalar propagating around the Kerr black hole induces the far-region potential with either a trapping well or a tiny well, which produces a peak of resonance or a bound state in the far-region. The former represents supe... |
1509.07965 | Jan Tristram Acu\~na | Jan Tristram Acu\~na, Jose Perico Esguerra | Dynamics of a planar thin shell at a Taub-FRW junction | This is the manuscript version submitted on July 29, 2015 to IJMPD. A
revised version of this manuscript has been accepted by IJMPD | null | 10.1142/S0218271816500012 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We address the problem of stitching together the vacuum, static,
planar-symmetric Taub spacetime and the flat Friedmann-Robertson-Walker
cosmology using the Israel thin-shell formalism. The joining of Taub and FRW
spacetimes is reminiscent of the Oppenheimer-Snyder collapse used in modeling
the formation of a singula... | [
{
"created": "Sat, 26 Sep 2015 11:41:02 GMT",
"version": "v1"
}
] | 2015-09-29 | [
[
"Acuña",
"Jan Tristram",
""
],
[
"Esguerra",
"Jose Perico",
""
]
] | We address the problem of stitching together the vacuum, static, planar-symmetric Taub spacetime and the flat Friedmann-Robertson-Walker cosmology using the Israel thin-shell formalism. The joining of Taub and FRW spacetimes is reminiscent of the Oppenheimer-Snyder collapse used in modeling the formation of a singulari... |
gr-qc/0405011 | Michael Petri | Michael Petri | Are we living in a string-dominated universe? | 23 pages, 1 figure, appendix (5 pages, 6 figures) | null | null | null | gr-qc astro-ph hep-th | null | The holographic solution is a new exact solution to the Einstein field
equations. It describes a compact self-gravitating object with properties
similar to a black hole. Its entropy and temperature at infinity are
proportional to the Hawking result. Instead of an event horizon, the
holographic solution has a real sph... | [
{
"created": "Mon, 3 May 2004 05:18:23 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Petri",
"Michael",
""
]
] | The holographic solution is a new exact solution to the Einstein field equations. It describes a compact self-gravitating object with properties similar to a black hole. Its entropy and temperature at infinity are proportional to the Hawking result. Instead of an event horizon, the holographic solution has a real spher... |
gr-qc/0511064 | Piotr Bizon | P. Bizo\'n, T. Chmaj, A. Rostworowski, B. G. Schmidt, Z. Tabor | On vacuum gravitational collapse in nine dimensions | 4 pages, 4 figures | Phys.Rev. D72 (2005) 121502 | 10.1103/PhysRevD.72.121502 | null | gr-qc hep-th | null | We consider the vacuum gravitational collapse for cohomogeneity-two solutions
of the nine dimensional Einstein equations. Using combined numerical and
analytical methods we give evidence that within this model the
Schwarzschild-Tangherlini black hole is asymptotically stable. In addition, we
briefly discuss the criti... | [
{
"created": "Sat, 12 Nov 2005 13:18:33 GMT",
"version": "v1"
}
] | 2009-11-11 | [
[
"Bizoń",
"P.",
""
],
[
"Chmaj",
"T.",
""
],
[
"Rostworowski",
"A.",
""
],
[
"Schmidt",
"B. G.",
""
],
[
"Tabor",
"Z.",
""
]
] | We consider the vacuum gravitational collapse for cohomogeneity-two solutions of the nine dimensional Einstein equations. Using combined numerical and analytical methods we give evidence that within this model the Schwarzschild-Tangherlini black hole is asymptotically stable. In addition, we briefly discuss the critica... |
1108.6266 | Salvatore Capozziello | Salvatore Capozziello, Mariafelicia De Laurentis | Extended Theories of Gravity | 184 pages, 3 figures, survey to appear in Physics Reports | null | 10.1016/j.physrep.2011.09.003 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Extended Theories of Gravity can be considered a new paradigm to cure
shortcomings of General Relativity at infrared and ultraviolet scales. They are
an approach that, by preserving the undoubtedly positive results of Einstein's
Theory, is aimed to address conceptual and experimental problems recently
emerged in Astr... | [
{
"created": "Wed, 31 Aug 2011 15:29:02 GMT",
"version": "v1"
},
{
"created": "Fri, 2 Sep 2011 14:20:59 GMT",
"version": "v2"
}
] | 2015-05-30 | [
[
"Capozziello",
"Salvatore",
""
],
[
"De Laurentis",
"Mariafelicia",
""
]
] | Extended Theories of Gravity can be considered a new paradigm to cure shortcomings of General Relativity at infrared and ultraviolet scales. They are an approach that, by preserving the undoubtedly positive results of Einstein's Theory, is aimed to address conceptual and experimental problems recently emerged in Astrop... |
2005.13029 | Haroldo Cilas Duarte Lima Junior | Haroldo C. D. Lima Junior and Lu\'is C. B. Crispino | Tidal forces in the charged Hayward black hole spacetime | 10 pages, 8 figures, Contribution to Selected Papers of the Fifth
Amazonian Symposium on Physics, accepted in IJMPD | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Tidal forces produced by black holes are an important result of General
Relativity, related to the spacetime curvature tensor. Among the astrophysical
implications of tidal forces, stands out tidal disruption events. We analyze
the tidal forces in the spacetime of an electrically charged Hayward regular
black hole, o... | [
{
"created": "Tue, 26 May 2020 20:37:17 GMT",
"version": "v1"
}
] | 2020-05-28 | [
[
"Junior",
"Haroldo C. D. Lima",
""
],
[
"Crispino",
"Luís C. B.",
""
]
] | Tidal forces produced by black holes are an important result of General Relativity, related to the spacetime curvature tensor. Among the astrophysical implications of tidal forces, stands out tidal disruption events. We analyze the tidal forces in the spacetime of an electrically charged Hayward regular black hole, obt... |
gr-qc/0508118 | Martin Bojowald | Martin Bojowald | Degenerate Configurations, Singularities and the Non-Abelian Nature of
Loop Quantum Gravity | 28 pages, 1 figure; v2: extended discussion of singularity removal
and summary | Class.Quant.Grav. 23 (2006) 987-1008 | 10.1088/0264-9381/23/3/023 | AEI-2005-133 | gr-qc | null | Degenerate geometrical configurations in quantum gravity are important to
understand if the fate of classical singularities is to be revealed. However,
not all degenerate configurations arise on an equal footing, and one must take
into account dynamical aspects when interpreting results: While there are many
degenera... | [
{
"created": "Mon, 29 Aug 2005 09:40:40 GMT",
"version": "v1"
},
{
"created": "Tue, 24 Jan 2006 14:13:55 GMT",
"version": "v2"
}
] | 2007-05-23 | [
[
"Bojowald",
"Martin",
""
]
] | Degenerate geometrical configurations in quantum gravity are important to understand if the fate of classical singularities is to be revealed. However, not all degenerate configurations arise on an equal footing, and one must take into account dynamical aspects when interpreting results: While there are many degenerate... |
2103.06601 | Aneta Wojnar | Aleksander Kozak, Aneta Wojnar | Invariant quantities of Scalar-Tensor Theories for stellar structure | 13 pages, 2 tables, version accepted to EPJC | Eur. Phys. J. C (2021) 81: 492 | 10.1140/epjc/s10052-021-09277-4 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present the relativistic hydrostatic equilibrium equations for a wide
class of gravitational theories possessing a scalar-tensor representation. It
turns out that the stellar structure equations can be written with respect to
the scalar-tensor invariants, allowing to interpret their physical role.
| [
{
"created": "Thu, 11 Mar 2021 10:56:28 GMT",
"version": "v1"
},
{
"created": "Thu, 20 May 2021 09:09:41 GMT",
"version": "v2"
},
{
"created": "Wed, 23 Jun 2021 09:49:44 GMT",
"version": "v3"
}
] | 2021-06-24 | [
[
"Kozak",
"Aleksander",
""
],
[
"Wojnar",
"Aneta",
""
]
] | We present the relativistic hydrostatic equilibrium equations for a wide class of gravitational theories possessing a scalar-tensor representation. It turns out that the stellar structure equations can be written with respect to the scalar-tensor invariants, allowing to interpret their physical role. |
0902.2247 | James M. Overduin | James Overduin, Francis Everitt, John Mester and Paul Worden | The Science Case for STEP | Added 2 figures and 3 references | Adv. Space Res. 43 (2009) 1532 | 10.1016/j.asr.2009.02.012 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | STEP (the Satellite Test of the Equivalence Principle) will advance
experimental limits on violations of Einstein's equivalence principle (EP) from
their present sensitivity of 2 parts in 10^13 to 1 part in 10^18 through
multiple comparison of the motions of four pairs of test masses of different
compositions in an e... | [
{
"created": "Fri, 13 Feb 2009 02:27:48 GMT",
"version": "v1"
},
{
"created": "Tue, 17 Feb 2009 03:16:41 GMT",
"version": "v2"
}
] | 2014-01-21 | [
[
"Overduin",
"James",
""
],
[
"Everitt",
"Francis",
""
],
[
"Mester",
"John",
""
],
[
"Worden",
"Paul",
""
]
] | STEP (the Satellite Test of the Equivalence Principle) will advance experimental limits on violations of Einstein's equivalence principle (EP) from their present sensitivity of 2 parts in 10^13 to 1 part in 10^18 through multiple comparison of the motions of four pairs of test masses of different compositions in an ear... |
2111.03644 | Giulia Ventagli | Giulia Ventagli, Georgios Antoniou, Antoine Leh\'ebel and Thomas P.
Sotiriou | Neutron star scalarization with Gauss-Bonnet and Ricci scalar couplings | 14 pages, 9 figures | null | 10.1103/PhysRevD.104.124078 | null | gr-qc astro-ph.HE hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Spontaneous scalarization of neutron stars has been extensively studied in
the Damour and Esposito-Far\`ese model, in which a scalar field couples to the
Ricci scalar or, equivalently, to the trace of the energy-momentum tensor.
However, scalarization of both black holes and neutron stars may also be
triggered by a c... | [
{
"created": "Fri, 5 Nov 2021 17:52:24 GMT",
"version": "v1"
}
] | 2022-03-14 | [
[
"Ventagli",
"Giulia",
""
],
[
"Antoniou",
"Georgios",
""
],
[
"Lehébel",
"Antoine",
""
],
[
"Sotiriou",
"Thomas P.",
""
]
] | Spontaneous scalarization of neutron stars has been extensively studied in the Damour and Esposito-Far\`ese model, in which a scalar field couples to the Ricci scalar or, equivalently, to the trace of the energy-momentum tensor. However, scalarization of both black holes and neutron stars may also be triggered by a cou... |
1012.2028 | Ermis Mitsou | Ermis Mitsou | Gravitational radiation from radial infall of a particle into a
Schwarzschild black hole. A numerical study of the spectra, quasi-normal
modes and power-law tails | 15 pages, 7 figures | Phys.Rev.D83:044039,2011 | 10.1103/PhysRevD.83.044039 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The computation of the gravitational radiation emitted by a particle falling
into a Schwarzschild black hole is a classic problem studied already in the
1970s. Here we present a detailed numerical analysis of the case of radial
infall starting at infinity with no initial velocity. We compute the radiated
waveforms, s... | [
{
"created": "Thu, 9 Dec 2010 15:16:47 GMT",
"version": "v1"
},
{
"created": "Fri, 17 Dec 2010 17:37:20 GMT",
"version": "v2"
}
] | 2011-03-23 | [
[
"Mitsou",
"Ermis",
""
]
] | The computation of the gravitational radiation emitted by a particle falling into a Schwarzschild black hole is a classic problem studied already in the 1970s. Here we present a detailed numerical analysis of the case of radial infall starting at infinity with no initial velocity. We compute the radiated waveforms, spe... |
gr-qc/0402067 | Andrew Makarenko | A.N. Makarenko | Wormholes in the Braneworld | null | null | null | null | gr-qc | null | We discuss brane wormhole solution when classical brane action contains 4d
curvature. The equations of motion for the cases with R=0 and $R\ne 0$ are
obtained. Their numerical solutions corresponding to wormhole are found for
specific boundary conditions.
| [
{
"created": "Sat, 14 Feb 2004 13:48:29 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Makarenko",
"A. N.",
""
]
] | We discuss brane wormhole solution when classical brane action contains 4d curvature. The equations of motion for the cases with R=0 and $R\ne 0$ are obtained. Their numerical solutions corresponding to wormhole are found for specific boundary conditions. |
1804.01669 | Richard Woodard | L. Tan and R. P. Woodard | Structure Formation in Nonlocal MOND | 26 pages, 4 figures, uses LaTeX 2e, Version 2 revised for publication
with some errors corrected and new references | JCAP 1805 (2018) no.05, 037 | 10.1088/1475-7516/2018/05/037 | UFIFT-QG-18-01 | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider structure formation in a nonlocal, metric-based realization of
Milgrom's MOdified Newtonian Dynamics (MOND). We derive the general equations
for linearized scalar perturbations about the $\Lambda$CDM expansion history.
These equations are considerably simplified for sub-horizon modes, and it
becomes obvio... | [
{
"created": "Thu, 5 Apr 2018 04:37:54 GMT",
"version": "v1"
},
{
"created": "Mon, 21 May 2018 08:15:13 GMT",
"version": "v2"
}
] | 2018-05-22 | [
[
"Tan",
"L.",
""
],
[
"Woodard",
"R. P.",
""
]
] | We consider structure formation in a nonlocal, metric-based realization of Milgrom's MOdified Newtonian Dynamics (MOND). We derive the general equations for linearized scalar perturbations about the $\Lambda$CDM expansion history. These equations are considerably simplified for sub-horizon modes, and it becomes obvious... |
1506.05801 | Nezihe Uzun | Nezihe Uzun and David L. Wiltshire | Quasilocal energy and thermodynamic equilibrium conditions | 27 pages. v2 small typos fixed, matches published version | Class.Quant.Grav. 32 (2015) 165011 | 10.1088/0264-9381/32/16/165011 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Equilibrium thermodynamic laws are typically applied to horizons in general
relativity without stating the conditions that bring them into equilibrium. We
fill this gap by applying a new thermodynamic interpretation to a generalized
Raychaudhuri equation for a worldsheet orthogonal to a closed spacelike
2-surface, th... | [
{
"created": "Thu, 18 Jun 2015 20:00:26 GMT",
"version": "v1"
},
{
"created": "Thu, 30 Jul 2015 06:15:54 GMT",
"version": "v2"
}
] | 2015-07-31 | [
[
"Uzun",
"Nezihe",
""
],
[
"Wiltshire",
"David L.",
""
]
] | Equilibrium thermodynamic laws are typically applied to horizons in general relativity without stating the conditions that bring them into equilibrium. We fill this gap by applying a new thermodynamic interpretation to a generalized Raychaudhuri equation for a worldsheet orthogonal to a closed spacelike 2-surface, the ... |
gr-qc/0703049 | Joan Josep Ferrando | Joan Josep Ferrando, Juan Antonio S\'aez | Rainich theory for type D aligned Einstein-Maxwell solutions | 12 pages; v2: appendix with notation | Gen.Rel.Grav.39:2039-2051,2007 | 10.1007/s10714-007-0500-9 | null | gr-qc | null | The original Rainich theory for the non-null Einstein-Maxwell solutions
consists of a set of algebraic conditions and the Rainich (differential)
equation. We show here that the subclass of type D aligned solutions can be
characterized just by algebraic restrictions.
| [
{
"created": "Wed, 7 Mar 2007 13:37:25 GMT",
"version": "v1"
},
{
"created": "Tue, 19 Feb 2008 10:00:27 GMT",
"version": "v2"
}
] | 2008-11-26 | [
[
"Ferrando",
"Joan Josep",
""
],
[
"Sáez",
"Juan Antonio",
""
]
] | The original Rainich theory for the non-null Einstein-Maxwell solutions consists of a set of algebraic conditions and the Rainich (differential) equation. We show here that the subclass of type D aligned solutions can be characterized just by algebraic restrictions. |
1702.05918 | Roberto Casadio | Roberto Casadio, Andrea Giugno, Andrea Giusti, Michele Lenzi | Quantum corpuscular corrections to the Newtonian potential | 26 pages, 4 figures. Typos corrected, references and clarifications
added | Phys. Rev. D 96, 044010 (2017) | 10.1103/PhysRevD.96.044010 | null | gr-qc hep-th quant-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study an effective quantum description of the static gravitational
potential for spherically symmetric systems up to the first post-Newtonian
order. We start by obtaining a Lagrangian for the gravitational potential
coupled to a static matter source from the weak field expansion of the
Einstein-Hilbert action. By ... | [
{
"created": "Mon, 20 Feb 2017 10:16:05 GMT",
"version": "v1"
},
{
"created": "Mon, 27 Feb 2017 13:31:34 GMT",
"version": "v2"
}
] | 2017-08-16 | [
[
"Casadio",
"Roberto",
""
],
[
"Giugno",
"Andrea",
""
],
[
"Giusti",
"Andrea",
""
],
[
"Lenzi",
"Michele",
""
]
] | We study an effective quantum description of the static gravitational potential for spherically symmetric systems up to the first post-Newtonian order. We start by obtaining a Lagrangian for the gravitational potential coupled to a static matter source from the weak field expansion of the Einstein-Hilbert action. By an... |
1810.03291 | Joseph Ntahompagaze | Joseph Ntahompagaze and Jean Damascene Mbarubukeye and Shambel Sahlu
and Amare Abebe | Inflation constraints for classes of f(R) models | 18 pages, accepted for IJGMMP | null | 10.1142/S0219887818502092 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper, we explore the equivalence between two theories, namely f(R)
and scalar-tensor theories of gravity. We use this equivalence to explore
several f(R) toy models focusing on the inflation epoch of the early universe.
The study is done based on the definition of the scalar field in terms of the
first deriv... | [
{
"created": "Mon, 8 Oct 2018 07:26:13 GMT",
"version": "v1"
},
{
"created": "Tue, 20 Nov 2018 07:55:52 GMT",
"version": "v2"
}
] | 2018-11-21 | [
[
"Ntahompagaze",
"Joseph",
""
],
[
"Mbarubukeye",
"Jean Damascene",
""
],
[
"Sahlu",
"Shambel",
""
],
[
"Abebe",
"Amare",
""
]
] | In this paper, we explore the equivalence between two theories, namely f(R) and scalar-tensor theories of gravity. We use this equivalence to explore several f(R) toy models focusing on the inflation epoch of the early universe. The study is done based on the definition of the scalar field in terms of the first derivat... |
0911.1017 | Dawood Kothawala | Dawood Kothawala, T. Padmanabhan | Response of Unruh-DeWitt detector with time-dependent acceleration | v1, 7 pages, no figures; v2, an Acknowledgment and some clarifying
comments added, matches version accepted for publication in Physics Letters B | Phys. Lett. B690:201-206, 2010 | 10.1016/j.physletb.2010.05.026 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | It is well known that a detector, coupled linearly to a quantum field and
accelerating through the inertial vacuum with a constant acceleration $g$, will
behave as though it is immersed in a radiation field with temperature
$T=(g/2\pi)$. We study a generalization of this result for detectors moving
with a time-depend... | [
{
"created": "Thu, 5 Nov 2009 14:17:56 GMT",
"version": "v1"
},
{
"created": "Fri, 28 May 2010 11:17:45 GMT",
"version": "v2"
}
] | 2014-11-20 | [
[
"Kothawala",
"Dawood",
""
],
[
"Padmanabhan",
"T.",
""
]
] | It is well known that a detector, coupled linearly to a quantum field and accelerating through the inertial vacuum with a constant acceleration $g$, will behave as though it is immersed in a radiation field with temperature $T=(g/2\pi)$. We study a generalization of this result for detectors moving with a time-dependen... |
gr-qc/9609063 | James E. Lidsey | James E. Lidsey | On the Cosmology and Symmetry of Dilaton-Axion Gravity | 11 pages, latex, 2 figures available on request | null | null | null | gr-qc hep-th | null | A global O$(2,2)$ symmetry is found in the Brans-Dicke theory of gravity when
the dilaton is coupled to axion and moduli fields. The symmetry is broken if a
cosmological constant is introduced. Within the class of spatially homogeneous
Bianchi cosmologies, only the type I and V models respect the symmetry.
Isotropic ... | [
{
"created": "Fri, 27 Sep 1996 13:50:15 GMT",
"version": "v1"
}
] | 2016-08-31 | [
[
"Lidsey",
"James E.",
""
]
] | A global O$(2,2)$ symmetry is found in the Brans-Dicke theory of gravity when the dilaton is coupled to axion and moduli fields. The symmetry is broken if a cosmological constant is introduced. Within the class of spatially homogeneous Bianchi cosmologies, only the type I and V models respect the symmetry. Isotropic co... |
gr-qc/0701115 | Orlando Alvarez | Orlando Alvarez | Schwarzschild Spacetime without Coordinates | 36 pages, 4 figures; some typos corrected, a few paragraphs added for
clarification | null | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We discuss how to construct the full Schwarzschild (Kruskal-Szekeres)
spacetime in one swoop by using the bundle of orthonormal Lorentz frames and
the Einstein equation without the use of coordinates. We never have to write
down the Kruskal-Szekeres or an equivalent form of the metric.
| [
{
"created": "Sun, 21 Jan 2007 21:47:33 GMT",
"version": "v1"
},
{
"created": "Wed, 4 Feb 2009 20:57:38 GMT",
"version": "v2"
}
] | 2009-02-04 | [
[
"Alvarez",
"Orlando",
""
]
] | We discuss how to construct the full Schwarzschild (Kruskal-Szekeres) spacetime in one swoop by using the bundle of orthonormal Lorentz frames and the Einstein equation without the use of coordinates. We never have to write down the Kruskal-Szekeres or an equivalent form of the metric. |
1308.5943 | Alfredo Lopez Ortega | S. Estrada-Jimenez, J. R. Gomez-Diaz, A. Lopez-Ortega | Quasinormal modes of a two-dimensional black hole | 9 pages. Accepted for publication in General Relativity and
Gravitation | Gen. Rel. Grav. 45, 2239 (2013) | 10.1007/s10714-013-1582-1 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | For a two-dimensional black hole we determine the quasinormal frequencies of
the Klein-Gordon and Dirac fields. In contrast to the well known examples whose
spectrum of quasinormal frequencies is discrete, for this black hole we find a
continuous spectrum of quasinormal frequencies, but there are unstable
quasinormal... | [
{
"created": "Tue, 27 Aug 2013 18:33:41 GMT",
"version": "v1"
}
] | 2014-07-04 | [
[
"Estrada-Jimenez",
"S.",
""
],
[
"Gomez-Diaz",
"J. R.",
""
],
[
"Lopez-Ortega",
"A.",
""
]
] | For a two-dimensional black hole we determine the quasinormal frequencies of the Klein-Gordon and Dirac fields. In contrast to the well known examples whose spectrum of quasinormal frequencies is discrete, for this black hole we find a continuous spectrum of quasinormal frequencies, but there are unstable quasinormal m... |
2311.09926 | Yurii Ignat'ev | Yu. G. Ignat'ev | Formation of supermassive nuclei of Black holes in the early\\[8pt]
Universe by the mechanism of scalar-gravitational instability. II. The
evolution of localized spherical perturbations | 8 pages, 7 figures, 8 references | Gravit. Cosmol. 2024, 30, 40-47 | 10.1134/S0202289324010067 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Based on the previously formulated theory of spherical perturbations in the
cosmological medium of self-gravitating scalarly charged fermions with the
Higgs scalar interaction and the similarity properties of such models, the
formation of supermassive Black Hole Seeds (SSBH) in the early Universe is
studied. Using nu... | [
{
"created": "Thu, 16 Nov 2023 14:27:00 GMT",
"version": "v1"
}
] | 2024-04-11 | [
[
"Ignat'ev",
"Yu. G.",
""
]
] | Based on the previously formulated theory of spherical perturbations in the cosmological medium of self-gravitating scalarly charged fermions with the Higgs scalar interaction and the similarity properties of such models, the formation of supermassive Black Hole Seeds (SSBH) in the early Universe is studied. Using nume... |
0704.0943 | Peter Shawhan | LIGO Scientific Collaboration | Search for gravitational-wave bursts in LIGO data from the fourth
science run | Corrected amplitude sensitivities (7% change on average); 30 pages,
submitted to Classical and Quantum Gravity | Class.Quant.Grav.24:5343-5370,2007; Erratum-ibid.25:039801,2008 | 10.1088/0264-9381/24/22/002 10.1088/0264-9381/25/3/039801 | LIGO-P060016-C-Z | gr-qc | null | The fourth science run of the LIGO and GEO 600 gravitational-wave detectors,
carried out in early 2005, collected data with significantly lower noise than
previous science runs. We report on a search for short-duration
gravitational-wave bursts with arbitrary waveform in the 64-1600 Hz frequency
range appearing in al... | [
{
"created": "Fri, 6 Apr 2007 20:45:17 GMT",
"version": "v1"
},
{
"created": "Tue, 28 Aug 2007 03:34:35 GMT",
"version": "v2"
},
{
"created": "Tue, 9 Oct 2007 18:37:08 GMT",
"version": "v3"
}
] | 2012-08-27 | [
[
"LIGO Scientific Collaboration",
"",
""
]
] | The fourth science run of the LIGO and GEO 600 gravitational-wave detectors, carried out in early 2005, collected data with significantly lower noise than previous science runs. We report on a search for short-duration gravitational-wave bursts with arbitrary waveform in the 64-1600 Hz frequency range appearing in all ... |
2302.10188 | Stefano Profumo | Aurora Ireland, Stefano Profumo and Jordan Scharnhorst | Primordial Gravitational Waves From Black Hole Evaporation in Standard
and Non-Standard Cosmologies | 13 pages, 7 figures | Physical Review D, Vol. 107, No. 10 (2023) | 10.1103/PhysRevD.107.104021 | null | gr-qc astro-ph.CO astro-ph.HE hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Gravitons radiated from light, evaporating black holes contribute to the
stochastic background of gravitational waves. The spectrum of such emission
depends on both the mass and the spin of the black holes, as well as on the
redshifting that occurs between the black hole formation and today. This, in
turn, depends on... | [
{
"created": "Fri, 17 Feb 2023 19:00:08 GMT",
"version": "v1"
}
] | 2023-05-10 | [
[
"Ireland",
"Aurora",
""
],
[
"Profumo",
"Stefano",
""
],
[
"Scharnhorst",
"Jordan",
""
]
] | Gravitons radiated from light, evaporating black holes contribute to the stochastic background of gravitational waves. The spectrum of such emission depends on both the mass and the spin of the black holes, as well as on the redshifting that occurs between the black hole formation and today. This, in turn, depends on t... |
2004.05590 | Wei-Tou Ni | Wei-Tou Ni | Mid-Frequency Gravitational Wave Detection and Sources | reference update and minor corrections | International Journal of Modern Physics D Vol. 29, No. 4 (2020)
1902005 (8 pages) | 10.1142/S021827181902005X | null | gr-qc astro-ph.CO astro-ph.GA astro-ph.IM | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A brief history and various themes of mid-frequency gravitational wave
detection are presented more or less following historical order -- Laser
Interferometry, Atom Interferometry (AI), Torsion Bar Antenna (TOBA), and
Superconducting Omni-directional Gravitational Radiation Observatory (SOGRO).
Both Earth-based and S... | [
{
"created": "Sun, 12 Apr 2020 11:47:24 GMT",
"version": "v1"
},
{
"created": "Wed, 15 Apr 2020 03:22:25 GMT",
"version": "v2"
}
] | 2020-07-14 | [
[
"Ni",
"Wei-Tou",
""
]
] | A brief history and various themes of mid-frequency gravitational wave detection are presented more or less following historical order -- Laser Interferometry, Atom Interferometry (AI), Torsion Bar Antenna (TOBA), and Superconducting Omni-directional Gravitational Radiation Observatory (SOGRO). Both Earth-based and Spa... |
2204.09531 | Kai Lin | Kai Lin and Wei-Liang Qian | Echoes of axial gravitational perturbations in stars of uniform density | null | Chinese Physics C Vol. 47, No. 8 (2023) 085101 | 10.1088/1674-1137/acd681 | null | gr-qc | http://creativecommons.org/licenses/by-nc-sa/4.0/ | This work investigates the echoes in axial gravitational perturbations in
compact objects. To this end, we propose an alternative scheme of the finite
difference method implemented in two coordinate systems, where the initial
conditions are placed on the axis of the tortoise coordinate with appropriate
boundary condi... | [
{
"created": "Wed, 20 Apr 2022 15:10:55 GMT",
"version": "v1"
},
{
"created": "Thu, 21 Apr 2022 01:41:30 GMT",
"version": "v2"
},
{
"created": "Thu, 16 Feb 2023 12:08:31 GMT",
"version": "v3"
},
{
"created": "Fri, 1 Sep 2023 14:28:35 GMT",
"version": "v4"
}
] | 2023-09-04 | [
[
"Lin",
"Kai",
""
],
[
"Qian",
"Wei-Liang",
""
]
] | This work investigates the echoes in axial gravitational perturbations in compact objects. To this end, we propose an alternative scheme of the finite difference method implemented in two coordinate systems, where the initial conditions are placed on the axis of the tortoise coordinate with appropriate boundary conditi... |
gr-qc/0106069 | P. Stavrinos | Sergiu I. Vacaru, Panayiotis Stavrinos, Denis Gontsa | Anholonomic Frames and Thermodynamic Geometry of 3D Black Holes | Latex, affiliations changed, new references and minor corrections | Chapter 6 in: "Clifford and Riemann Finsler Structures in
Geometric Mechanics and Gravity, Selected Works by S. Vacaru, P. Stavrinos,
E. Gaburov and D. Gonta (Geometry Balkan Press, 2006)
http://www.mathem.pub.ro/dgds/mono/va-t.pdf | null | null | gr-qc hep-th math-ph math.MP | null | We study new classes three dimensional black hole solutions of Einstein
equations written in two holonomic and one anholonomic variables with respect
to anholonomic frames Thermodynamic properties of such (2+1)-black holes with
generic local anisotropy (having elliptitic horizons) are studied by applying
geometric me... | [
{
"created": "Thu, 21 Jun 2001 14:27:55 GMT",
"version": "v1"
},
{
"created": "Thu, 8 Nov 2001 23:25:12 GMT",
"version": "v2"
},
{
"created": "Thu, 11 Jul 2002 12:08:32 GMT",
"version": "v3"
}
] | 2007-05-23 | [
[
"Vacaru",
"Sergiu I.",
""
],
[
"Stavrinos",
"Panayiotis",
""
],
[
"Gontsa",
"Denis",
""
]
] | We study new classes three dimensional black hole solutions of Einstein equations written in two holonomic and one anholonomic variables with respect to anholonomic frames Thermodynamic properties of such (2+1)-black holes with generic local anisotropy (having elliptitic horizons) are studied by applying geometric meth... |
gr-qc/9507046 | null | Giampiero Esposito | Dirac Operator and Eigenvalues in Riemannian Geometry | 105 pages, plain-tex, based on 5 graduate lectures given by the
author at SISSA, Trieste, April 1994 | null | null | DSF 95/33 | gr-qc | null | The aim of the lectures is to introduce first-year Ph.D. students and
research workers to the theory of the Dirac operator, spinor techniques, and
their relevance for the theory of eigenvalues in Riemannian geometry. Topics:
differential operators on manifolds, index of elliptic operators, Dirac
operator, index probl... | [
{
"created": "Mon, 24 Jul 1995 06:03:18 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Esposito",
"Giampiero",
""
]
] | The aim of the lectures is to introduce first-year Ph.D. students and research workers to the theory of the Dirac operator, spinor techniques, and their relevance for the theory of eigenvalues in Riemannian geometry. Topics: differential operators on manifolds, index of elliptic operators, Dirac operator, index problem... |
1412.4685 | Larry Ford | V. A. De Lorenci and L. H. Ford | Decoherence induced by long wavelength gravitons | 10 pages, 1 figure, Section II incorporates much of the content of
arXiv:1205.2348 | Phys. Rev. D 91, 044038 (2015) | 10.1103/PhysRevD.91.044038 | null | gr-qc hep-th quant-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We discuss how a background bath of gravitons can induce decoherence of
quantum systems. The mechanism is dephasing, the loss of phase coherence due to
quantum geometry fluctuations caused by the gravitons. This effect is
illustrated in a simple analog model of quantum particles in a cavity whose
walls undergo positi... | [
{
"created": "Mon, 15 Dec 2014 17:29:47 GMT",
"version": "v1"
}
] | 2015-03-05 | [
[
"De Lorenci",
"V. A.",
""
],
[
"Ford",
"L. H.",
""
]
] | We discuss how a background bath of gravitons can induce decoherence of quantum systems. The mechanism is dephasing, the loss of phase coherence due to quantum geometry fluctuations caused by the gravitons. This effect is illustrated in a simple analog model of quantum particles in a cavity whose walls undergo position... |
gr-qc/0007041 | Mario La Camera | A. G. Agnese, M. La Camera | Schwarzschild metrics and quasi-universes | 13 pages, LateX2e, 2 figures | Found.Phys.Lett. 14 (2001) 581-587 | null | null | gr-qc | null | The exterior and interior Schwarzschild solutions are rewritten replacing the
usual radial variable with an angular one. This allows to obtain some results
otherwise less apparent or even hidden in other coordinate systems.
| [
{
"created": "Tue, 18 Jul 2000 09:59:11 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Agnese",
"A. G.",
""
],
[
"La Camera",
"M.",
""
]
] | The exterior and interior Schwarzschild solutions are rewritten replacing the usual radial variable with an angular one. This allows to obtain some results otherwise less apparent or even hidden in other coordinate systems. |
2107.07118 | Lorenzo Iorio | Lorenzo Iorio | The impact of the spin-orbit misalignment and of the spin of B on the
Lense-Thrirring orbital precessions of the Double Pulsar PSR J0737-3039A/B | LaTex2e, 25 pages, 6 figures, no tables. Abstract abridged to comply
with the limits by Monthly Notices of the Royal Astronomical Society (MNRAS) | Mon.Not.Roy.Astron.Soc.507:421-430,2021 | 10.1093/mnras/stab2152 | null | gr-qc physics.space-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In the Double Pulsar, the Lense-Thirring periastron precession
$\dot\omega^\mathrm{LT}$ should be measured by the end of this decade. The
analyses recently appeared in the literature rely upon a formula for
$\dot\omega^\mathrm{LT,\,A}$ induced by the spin angular momentum
${\boldsymbol{S}}^\mathrm{A}$ of A valid if t... | [
{
"created": "Thu, 15 Jul 2021 04:56:13 GMT",
"version": "v1"
},
{
"created": "Mon, 19 Jul 2021 13:22:37 GMT",
"version": "v2"
},
{
"created": "Thu, 22 Jul 2021 16:15:38 GMT",
"version": "v3"
}
] | 2021-08-23 | [
[
"Iorio",
"Lorenzo",
""
]
] | In the Double Pulsar, the Lense-Thirring periastron precession $\dot\omega^\mathrm{LT}$ should be measured by the end of this decade. The analyses recently appeared in the literature rely upon a formula for $\dot\omega^\mathrm{LT,\,A}$ induced by the spin angular momentum ${\boldsymbol{S}}^\mathrm{A}$ of A valid if the... |
1208.3990 | Markku Oksanen | Masud Chaichian, Josef Kluso\v{n}, Markku Oksanen, Anca Tureanu | Higher derivative gravity with spontaneous symmetry breaking:
Hamiltonian analysis of new covariant renormalizable gravity | 39 pages. Presentation improved. Version published in Phys. Rev. D | Phys.Rev. D87, 064032 (2013) | 10.1103/PhysRevD.87.064032 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In order to explore some general features of modified theories of gravity
which involve higher derivatives and spontaneous Lorentz and/or diffeomorphism
symmetry breaking, we study the recently proposed new version of covariant
renormalizable gravity (CRG). CRG attains power-counting renormalizability via
higher deri... | [
{
"created": "Mon, 20 Aug 2012 12:12:52 GMT",
"version": "v1"
},
{
"created": "Mon, 15 Apr 2013 13:13:41 GMT",
"version": "v2"
}
] | 2013-04-16 | [
[
"Chaichian",
"Masud",
""
],
[
"Klusoň",
"Josef",
""
],
[
"Oksanen",
"Markku",
""
],
[
"Tureanu",
"Anca",
""
]
] | In order to explore some general features of modified theories of gravity which involve higher derivatives and spontaneous Lorentz and/or diffeomorphism symmetry breaking, we study the recently proposed new version of covariant renormalizable gravity (CRG). CRG attains power-counting renormalizability via higher deriva... |
1612.04523 | Piotr T. Chru\'sciel | Piotr T. Chrusciel | Long time existence from interior gluing | arXiv admin note: text overlap with arXiv:1612.04359 authors note:
this paper builds upon arXiv:1612.04359 v2: various small improvements | null | 10.1088/1361-6382/aa769d | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We prove the "existence of a piece of Scri near $i^0$" (with most likely poor
differentiability of the conformally rescaled metric) for general
asymptotically flat data with well-defined energy-momentum. The proof uses
scaling and a gluing construction to reduce the problem to Bieri's stability
theorem.
| [
{
"created": "Wed, 14 Dec 2016 08:05:43 GMT",
"version": "v1"
},
{
"created": "Sat, 17 Jun 2017 15:21:46 GMT",
"version": "v2"
}
] | 2017-07-05 | [
[
"Chrusciel",
"Piotr T.",
""
]
] | We prove the "existence of a piece of Scri near $i^0$" (with most likely poor differentiability of the conformally rescaled metric) for general asymptotically flat data with well-defined energy-momentum. The proof uses scaling and a gluing construction to reduce the problem to Bieri's stability theorem. |
1010.2554 | Muhammad Sharif | M. Sharif and H. Rizwana Kausar | Non-vacuum Solutions of Bianchi Type VI_0 Universe in f(R) Gravity | 20 pages, 5 figures, accepted for publication in Astrophys. Space Sci | Astrophys.Space Sci.332:463-471,2011 | 10.1007/s10509-010-0511-y | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper, we solve the field equations in metric f(R) gravity for
Bianchi type VI_0 spacetime and discuss evolution of the expanding universe. We
find two types of non-vacuum solutions by taking isotropic and anisotropic
fluids as the source of matter and dark energy. The physical behavior of these
solutions is ... | [
{
"created": "Wed, 13 Oct 2010 02:16:24 GMT",
"version": "v1"
}
] | 2011-03-15 | [
[
"Sharif",
"M.",
""
],
[
"Kausar",
"H. Rizwana",
""
]
] | In this paper, we solve the field equations in metric f(R) gravity for Bianchi type VI_0 spacetime and discuss evolution of the expanding universe. We find two types of non-vacuum solutions by taking isotropic and anisotropic fluids as the source of matter and dark energy. The physical behavior of these solutions is an... |
0801.3368 | Nakia Carlevaro | Nakia Carlevaro and Giovanni Montani | On the Role of Viscosity in Early Cosmology | 4 pages, no figure | Int. J. Mod. Phys. A 23, 1248-1252 (2008) | 10.1142/S0217751X08040160 | null | gr-qc astro-ph | null | We present a discussion of the effects induced by bulk viscosity on the very
early Universe stability. The viscosity coefficient is assumed to be related to
the energy density $\rho$ via a power-law of the form $\zeta=\zeta_0 \rho^s$
(where $\zeta_0, s=const.$) and the behavior of the density contrast in
analyzed.
... | [
{
"created": "Tue, 22 Jan 2008 13:55:18 GMT",
"version": "v1"
},
{
"created": "Wed, 23 Jan 2008 10:36:22 GMT",
"version": "v2"
},
{
"created": "Tue, 15 Apr 2008 09:48:43 GMT",
"version": "v3"
},
{
"created": "Thu, 24 Apr 2008 10:00:11 GMT",
"version": "v4"
}
] | 2009-03-24 | [
[
"Carlevaro",
"Nakia",
""
],
[
"Montani",
"Giovanni",
""
]
] | We present a discussion of the effects induced by bulk viscosity on the very early Universe stability. The viscosity coefficient is assumed to be related to the energy density $\rho$ via a power-law of the form $\zeta=\zeta_0 \rho^s$ (where $\zeta_0, s=const.$) and the behavior of the density contrast in analyzed. In p... |
2110.08083 | Emilio Rub\'in de Celis | E. Rub\'in de Celis and C. Simeone | About the traversability of thin-shell wormholes | 13 pages, no figures | The European Physical Journal C volume 81, Article number: 937
(2021) | 10.1140/epjc/s10052-021-09743-z | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Traversability in relation with tides across thin-shell wormholes is
analyzed. Conditions for a safe travel through a wormhole throat are
established in terms of the parameters characterizing the geometries and
reasonable assumptions regarding the travellers motion. Most convenient
geometries turn to include the phys... | [
{
"created": "Fri, 15 Oct 2021 13:24:47 GMT",
"version": "v1"
},
{
"created": "Mon, 1 Nov 2021 02:48:18 GMT",
"version": "v2"
}
] | 2021-11-02 | [
[
"de Celis",
"E. Rubín",
""
],
[
"Simeone",
"C.",
""
]
] | Traversability in relation with tides across thin-shell wormholes is analyzed. Conditions for a safe travel through a wormhole throat are established in terms of the parameters characterizing the geometries and reasonable assumptions regarding the travellers motion. Most convenient geometries turn to include the physic... |
gr-qc/0209005 | Rui Qi | Rui Qi | A possible way for getting the information out of a black hole | 10 pages, no figures | null | null | null | gr-qc quant-ph | null | We try to solve the problem about how to probe the inside of a black hole. We
show that in the framework of revised quantum dynamics, which may naturally
result from the combination of quantum mechanics and general relativity, the
information inside a black hole can be gotten out in principle when using the
conscious... | [
{
"created": "Tue, 3 Sep 2002 06:08:31 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Qi",
"Rui",
""
]
] | We try to solve the problem about how to probe the inside of a black hole. We show that in the framework of revised quantum dynamics, which may naturally result from the combination of quantum mechanics and general relativity, the information inside a black hole can be gotten out in principle when using the conscious b... |
1911.01233 | Puskar Mondal | Puskar Mondal | Asymptotic behavior of a matter filled universe with exotic topology | null | null | 10.1088/1361-6382/ab5e91 | null | gr-qc astro-ph.CO math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The ADM formalism together with a constant mean curvature (CMC) temporal
gauge is used to derive the monotonic decay of a weak Lyapunov function of the
Einstein dynamical equations in an expanding universe with a positive
cosmological constant and matter sources satisfying suitable energy conditions.
While such a Lya... | [
{
"created": "Fri, 1 Nov 2019 16:18:24 GMT",
"version": "v1"
},
{
"created": "Tue, 5 Nov 2019 03:01:25 GMT",
"version": "v2"
},
{
"created": "Sun, 1 Dec 2019 23:09:05 GMT",
"version": "v3"
},
{
"created": "Wed, 4 Dec 2019 20:33:46 GMT",
"version": "v4"
},
{
"creat... | 2022-04-08 | [
[
"Mondal",
"Puskar",
""
]
] | The ADM formalism together with a constant mean curvature (CMC) temporal gauge is used to derive the monotonic decay of a weak Lyapunov function of the Einstein dynamical equations in an expanding universe with a positive cosmological constant and matter sources satisfying suitable energy conditions. While such a Lyapu... |
1705.07773 | Bijan Saha Dr. | Bijan Saha | Spinor field in Bianchi type-$IX$ space-time | 20 pages, 12 Figures, in the previous version there were some
mistakes which are corrected, beside the conventional Bianchi type IX model a
model with a more general $h(x_3)$ is studied | null | 10.1139/cjp-2017-0711 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Within the scope of Bianchi type-$IX$ we have studied the role of spinor
field in the evolution of the Universe. It is found that unlike the diagonal
Bianchi models in this case the components of energy-momentum tensor of spinor
field along the principal axis are not the same, i.e. $T_1^1 \ne T_2^2 \ne
T_3^3$, even i... | [
{
"created": "Mon, 22 May 2017 14:38:04 GMT",
"version": "v1"
},
{
"created": "Tue, 30 May 2017 12:37:20 GMT",
"version": "v2"
}
] | 2018-11-14 | [
[
"Saha",
"Bijan",
""
]
] | Within the scope of Bianchi type-$IX$ we have studied the role of spinor field in the evolution of the Universe. It is found that unlike the diagonal Bianchi models in this case the components of energy-momentum tensor of spinor field along the principal axis are not the same, i.e. $T_1^1 \ne T_2^2 \ne T_3^3$, even in ... |
1701.01137 | Scott Field | Richard O'Shaughnessy (Rochester Institute of Technology), Jonathan
Blackman (California Institute of Technology), Scott E. Field (University of
Massachusetts, Dartmouth) | An architecture for efficient gravitational wave parameter estimation
with multimodal linear surrogate models | 10 pages, 3 figures, and 1 table | null | 10.1088/1361-6382/aa7649 | LIGO P1600309 | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The recent direct observation of gravitational waves has further emphasized
the desire for fast, low-cost, and accurate methods to infer the parameters of
gravitational wave sources. Due to expense in waveform generation and data
handling, the cost of evaluating the likelihood function limits the
computational perfor... | [
{
"created": "Wed, 4 Jan 2017 19:51:12 GMT",
"version": "v1"
},
{
"created": "Thu, 22 Jun 2017 03:56:56 GMT",
"version": "v2"
}
] | 2017-07-05 | [
[
"O'Shaughnessy",
"Richard",
"",
"Rochester Institute of Technology"
],
[
"Blackman",
"Jonathan",
"",
"California Institute of Technology"
],
[
"Field",
"Scott E.",
"",
"University of\n Massachusetts, Dartmouth"
]
] | The recent direct observation of gravitational waves has further emphasized the desire for fast, low-cost, and accurate methods to infer the parameters of gravitational wave sources. Due to expense in waveform generation and data handling, the cost of evaluating the likelihood function limits the computational performa... |
1205.6763 | Brajesh Gupt | Brajesh Gupt, Parampreet Singh | Quantum gravitational Kasner transitions in Bianchi-I spacetime | Four figures added on Kasner transitions. Minor changes. To appear in
PRD | Phys. Rev. D 86, 024034 (2012) | 10.1103/PhysRevD.86.024034 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Due to non-perturbative quantum gravitational effects, the classical big bang
singularity is replaced by a quantum big bounce of the mean scale factor in
loop quantization of Bianchi-I spacetime. An important issue is to understand
various differences in the physical properties of the spacetime across the
bounce. We ... | [
{
"created": "Wed, 30 May 2012 17:35:33 GMT",
"version": "v1"
},
{
"created": "Tue, 3 Jul 2012 18:17:42 GMT",
"version": "v2"
}
] | 2012-07-30 | [
[
"Gupt",
"Brajesh",
""
],
[
"Singh",
"Parampreet",
""
]
] | Due to non-perturbative quantum gravitational effects, the classical big bang singularity is replaced by a quantum big bounce of the mean scale factor in loop quantization of Bianchi-I spacetime. An important issue is to understand various differences in the physical properties of the spacetime across the bounce. We in... |
2002.05903 | Shahar Hod | Shahar Hod | No hair for spherically symmetric neutral black holes: nonminimally
coupled massive scalar fields | 7 pages | Physical Review D 96, 124037 (2017) | 10.1103/PhysRevD.96.124037 | null | gr-qc astro-ph.HE hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | It is proved that spherically symmetric asymptotically flat neutral black
holes cannot support spatially regular static configurations made of massive
scalar fields with non-minimal coupling to gravity. Interestingly, our compact
no-hair theorem is valid for generic values of the dimensionless physical
parameter $\xi... | [
{
"created": "Fri, 14 Feb 2020 08:05:30 GMT",
"version": "v1"
}
] | 2020-02-19 | [
[
"Hod",
"Shahar",
""
]
] | It is proved that spherically symmetric asymptotically flat neutral black holes cannot support spatially regular static configurations made of massive scalar fields with non-minimal coupling to gravity. Interestingly, our compact no-hair theorem is valid for generic values of the dimensionless physical parameter $\xi$ ... |
1910.00466 | Behnam Pourhassan | Ujjal Debnath, Behnam Pourhassan, Izzet Sakalli | Modified Cosmic Chaplygin AdS Black Hole | 30 pages, 13 figures | Mod.Phys.Lett.A 37 (2022) 14, 2250085 | 10.1142/S0217732322500857 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper, we construct a new charged AdS black hole with modified cosmic
Chaplygin gas (MCCG). In comparison to the previous model (modified Chaplygin
AdS black hole) existed in the literature, we now have two new parameters: the
cosmic parameter and the black hole's electric charge. We examine the
asymptoticall... | [
{
"created": "Wed, 25 Sep 2019 18:35:22 GMT",
"version": "v1"
},
{
"created": "Wed, 20 Apr 2022 17:06:10 GMT",
"version": "v2"
}
] | 2022-06-17 | [
[
"Debnath",
"Ujjal",
""
],
[
"Pourhassan",
"Behnam",
""
],
[
"Sakalli",
"Izzet",
""
]
] | In this paper, we construct a new charged AdS black hole with modified cosmic Chaplygin gas (MCCG). In comparison to the previous model (modified Chaplygin AdS black hole) existed in the literature, we now have two new parameters: the cosmic parameter and the black hole's electric charge. We examine the asymptotically ... |
0902.4146 | H\'ector Vucetich | L. Kraiselburd and H. Vucetich | Violation of the Weak Equivalence Principle in Bekenstein's theory | LaTeX, 10 pages, no figures. Affiliation added. Abstract improved | Int.J.Mod.Phys.E20:101-111,2011 | 10.1142/S0218301311017351 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Bekenstein has shown that violation of Weak Equivalence Principle is strongly
supressed in his model of charge variation. In this paper, it is shown that
nuclear magnetic energy is large enough to produce observable effects in Eotvos
experiments.
| [
{
"created": "Tue, 24 Feb 2009 16:54:13 GMT",
"version": "v1"
}
] | 2011-04-08 | [
[
"Kraiselburd",
"L.",
""
],
[
"Vucetich",
"H.",
""
]
] | Bekenstein has shown that violation of Weak Equivalence Principle is strongly supressed in his model of charge variation. In this paper, it is shown that nuclear magnetic energy is large enough to produce observable effects in Eotvos experiments. |
1312.1150 | Farook Rahaman | Farook Rahaman, Piyali Bhar, Ritabrata Biswas and A. A. Usmani | Exact interior solutions in (2 + 1) dimensional spacetime | Matched published version. Eur. Phys. J. C (2014) 74:2845 | Eur. Phys. J. C (2014) 74:2845 | 10.1140/epjc/s10052-014-2845-z | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We provide a new class of exact solutions for the interior in (2 + 1)
dimensional spacetime. The solutions obtained for the perfect fluid model both
with and without cosmological constant ($\Lambda$) are found to be regular and
singularity free. It assume very simple analytical forms that help us to study
the various... | [
{
"created": "Tue, 3 Dec 2013 11:04:31 GMT",
"version": "v1"
},
{
"created": "Wed, 2 Apr 2014 04:32:48 GMT",
"version": "v2"
},
{
"created": "Thu, 1 May 2014 15:43:25 GMT",
"version": "v3"
}
] | 2014-05-02 | [
[
"Rahaman",
"Farook",
""
],
[
"Bhar",
"Piyali",
""
],
[
"Biswas",
"Ritabrata",
""
],
[
"Usmani",
"A. A.",
""
]
] | We provide a new class of exact solutions for the interior in (2 + 1) dimensional spacetime. The solutions obtained for the perfect fluid model both with and without cosmological constant ($\Lambda$) are found to be regular and singularity free. It assume very simple analytical forms that help us to study the various p... |
1412.0641 | Cecilia Bejarano | Cecilia Bejarano, Rafael Ferraro, Mar\'ia Jos\'e Guzm\'an | Kerr geometry in f(T) gravity | 7 pages. Improved version; one reference updated and one new
reference added. Accepted for publication in Eur. Phys. J. C | Eur. Phys. J. C (2015) 75: 77 | 10.1140/epjc/s10052-015-3288-x | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Null tetrads are shown to be a valuable tool in teleparallel theories of
modified gravity. We use them to prove that Kerr geometry remains a solution
for a wide family of f(T) theories of gravity.
| [
{
"created": "Mon, 1 Dec 2014 20:50:03 GMT",
"version": "v1"
},
{
"created": "Thu, 5 Feb 2015 21:40:29 GMT",
"version": "v2"
}
] | 2015-02-25 | [
[
"Bejarano",
"Cecilia",
""
],
[
"Ferraro",
"Rafael",
""
],
[
"Guzmán",
"María José",
""
]
] | Null tetrads are shown to be a valuable tool in teleparallel theories of modified gravity. We use them to prove that Kerr geometry remains a solution for a wide family of f(T) theories of gravity. |
gr-qc/9611059 | null | M. Gasperini | Relic dilatons in string cosmology | 13 pages, LATEX, two figures included using epsf. To appear in Proc.
of the 12th It. Conf. on Gen. Rel. and Grav. Phys. (Rome, Sept. 1996), ed. by
M. Bassan et al. (World Scientific, Singapore). An updated collection of
papers on the pre-big-bang scenario in string cosmology is available at
http://www.to.infn.i... | null | null | CERN-TH/96-330 | gr-qc astro-ph hep-ph hep-th | null | The allowed mass windows for a cosmic background of relic dilatons are
estimated in the context of the pre-big bang scenario. The dilatons are
produced from the quantum fluctuations of the vacuum, and the extension of the
windows is controlled by the string mass scale. The possible relaxation of
phenomenological boun... | [
{
"created": "Mon, 25 Nov 1996 08:51:57 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Gasperini",
"M.",
""
]
] | The allowed mass windows for a cosmic background of relic dilatons are estimated in the context of the pre-big bang scenario. The dilatons are produced from the quantum fluctuations of the vacuum, and the extension of the windows is controlled by the string mass scale. The possible relaxation of phenomenological bounds... |
2011.02884 | Martin Bojowald | Martin Bojowald, Suddhasattwa Brahma | Loop quantum gravity, signature change, and the no-boundary proposal | 26 pages, v2: additional references | Phys. Rev. D 102 (2020) 106023 | 10.1103/PhysRevD.102.106023 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Covariant models of loop quantum gravity generically imply dynamical
signature change at high density. This article presents detailed derivations
that show the fruitful interplay of this new kind of signature change with
wave-function proposals of quantum cosmology, such as the no-boundary and
tunneling proposals. In... | [
{
"created": "Thu, 5 Nov 2020 14:49:35 GMT",
"version": "v1"
},
{
"created": "Wed, 26 May 2021 14:50:27 GMT",
"version": "v2"
}
] | 2021-05-27 | [
[
"Bojowald",
"Martin",
""
],
[
"Brahma",
"Suddhasattwa",
""
]
] | Covariant models of loop quantum gravity generically imply dynamical signature change at high density. This article presents detailed derivations that show the fruitful interplay of this new kind of signature change with wave-function proposals of quantum cosmology, such as the no-boundary and tunneling proposals. In p... |
1806.10818 | Roberto Ivan Cabrera Munguia Dr. | I. Cabrera-Munguia | Extreme binary black holes in a physical representation | 11 pages, 6 figures, 1 table; minor changes | Progr. Theor. Exp. Phys, 103E01 (2018) | 10.1093/ptep/pty108 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Stationary axisymmetric binary systems of unequal co and counter-rotating
extreme Kerr black holes apart by a conical singularity are studied. Both
solutions are well identified as two $3$-parametric subfamilies of the
Kinnersley-Chitre metric, and fully depicted by Komar parameters: the two
masses $M_{1}$ and $M_{2}... | [
{
"created": "Thu, 28 Jun 2018 08:21:24 GMT",
"version": "v1"
},
{
"created": "Wed, 4 Jul 2018 11:36:31 GMT",
"version": "v2"
}
] | 2018-11-02 | [
[
"Cabrera-Munguia",
"I.",
""
]
] | Stationary axisymmetric binary systems of unequal co and counter-rotating extreme Kerr black holes apart by a conical singularity are studied. Both solutions are well identified as two $3$-parametric subfamilies of the Kinnersley-Chitre metric, and fully depicted by Komar parameters: the two masses $M_{1}$ and $M_{2}$,... |
2204.09678 | Nawsad Ali | Nawsad Ali | Anisotropic Bianchi Type V Bulk Viscous Universe with Variable G and
Lambda | 17 Ppages and 4 figures. arXiv admin note: text overlap with
arXiv:1205.5265, arXiv:0705.0459 by other authors | null | null | null | gr-qc hep-th | http://creativecommons.org/licenses/by/4.0/ | The present study deals with spatially homogeneous and totally anisotropic
Bianchi type V cosmological model in presence of bulk viscous fluid source with
time dependent gravitational constant G and cosmological term Lambda. The
coefficient of bulk viscosity zeta is considered to be a quadratic function of
Hubble par... | [
{
"created": "Wed, 20 Apr 2022 02:31:08 GMT",
"version": "v1"
}
] | 2022-04-22 | [
[
"Ali",
"Nawsad",
""
]
] | The present study deals with spatially homogeneous and totally anisotropic Bianchi type V cosmological model in presence of bulk viscous fluid source with time dependent gravitational constant G and cosmological term Lambda. The coefficient of bulk viscosity zeta is considered to be a quadratic function of Hubble param... |
2312.11940 | Kazuhiro Yamamoto | Yukino Mori, Yota Nakayama, Kazuhiro Yamamoto, Takafumi Ushiba,
Dani`ele Forest, Christophe Michel, Laurent Pinard, and Julien Teillo,
Gianpietro Cagnoli | TiO2 doping effect on reflective coating mechanical loss for
gravitational wave detection at low temperature | null | null | null | null | gr-qc astro-ph.IM physics.ins-det | http://creativecommons.org/licenses/by-nc-nd/4.0/ | We measured the mechanical loss of a dielectric multilayer reflective coating
(ion-beam-sputtered SiO2 and Ta2O5) with and without TiO2 on sapphire disks
between 6 and 77 K. The measured loss angle exhibited a temperature dependence,
and the local maximum was found at approximately 20 K. This maximum was
7.0*10^(-4) ... | [
{
"created": "Tue, 19 Dec 2023 08:40:00 GMT",
"version": "v1"
}
] | 2023-12-20 | [
[
"Mori",
"Yukino",
""
],
[
"Nakayama",
"Yota",
""
],
[
"Yamamoto",
"Kazuhiro",
""
],
[
"Ushiba",
"Takafumi",
""
],
[
"Forest",
"Dani`ele",
""
],
[
"Michel",
"Christophe",
""
],
[
"Pinard",
"Laurent",
""
],... | We measured the mechanical loss of a dielectric multilayer reflective coating (ion-beam-sputtered SiO2 and Ta2O5) with and without TiO2 on sapphire disks between 6 and 77 K. The measured loss angle exhibited a temperature dependence, and the local maximum was found at approximately 20 K. This maximum was 7.0*10^(-4) (w... |
0710.3787 | Larry Ford | L. H. Ford and Chun-Hsien Wu | Quantum Stress Tensor Fluctuations and their Physical Effects | 15 pages, 1 figure; invited talk presented at the 3rd Mexican Meeting
on Experimental and Theoretical Physics, Mexico City, September 10-14, 2007 | AIPConf.Proc.977:145-159,2008 | 10.1063/1.2902780 | null | gr-qc | null | We summarize several aspects of recent work on quantum stress tensor
fluctuations and their role in driving fluctuations of the gravitational field.
The role of correlations and anticorrelations is emphasized. We begin with a
review of the properties of the stress tensor correlation function. We next
consider some il... | [
{
"created": "Fri, 19 Oct 2007 20:54:27 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Ford",
"L. H.",
""
],
[
"Wu",
"Chun-Hsien",
""
]
] | We summarize several aspects of recent work on quantum stress tensor fluctuations and their role in driving fluctuations of the gravitational field. The role of correlations and anticorrelations is emphasized. We begin with a review of the properties of the stress tensor correlation function. We next consider some illu... |
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