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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2310.17479 | Suman Ghosh | Antariksha Mitra and Suman Ghosh | Signature quasinormal modes of Ellis-Bronnikov wormhole embedded in
warped braneworld background | One figure added, references updated, discussion improved, accepted
for publication in PRD | null | null | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | We examine the quasi normal modes of Ellis-Bronnikov wormholes embedded in a
warped five dimensional braneworld background and compare with it's four
dimensional counterpart. These scalar quasi normal frequencies are obtained
using the WKB formula, Prony method and the direct integration method. The
signature of the ... | [
{
"created": "Thu, 26 Oct 2023 15:31:57 GMT",
"version": "v1"
},
{
"created": "Sat, 10 Feb 2024 13:27:19 GMT",
"version": "v2"
}
] | 2024-02-13 | [
[
"Mitra",
"Antariksha",
""
],
[
"Ghosh",
"Suman",
""
]
] | We examine the quasi normal modes of Ellis-Bronnikov wormholes embedded in a warped five dimensional braneworld background and compare with it's four dimensional counterpart. These scalar quasi normal frequencies are obtained using the WKB formula, Prony method and the direct integration method. The signature of the wa... |
0709.4541 | Ujjal Debnath | Sanjukta Chakraborty, Subenoy Chakraborty and Ujjal Debnath | Quasi-Spherical Gravitational Collapse in higher dimension and the
effect of equation of state | 8 Latex pages, No figure, RevTex style | Grav.Cosmol.13:211-216,2007 | null | null | gr-qc | null | Gravitational collapse in (n+2) dimensional quasi-spherical space-time is
studied for a fluid with non vanishing radial pressure. An exact analytic
solution is obtained (ignoring the arbitrary integration function) for the
equation of state $p_{r}=(\gamma-1)\rho.$ The singularity is studied locally by
comparing the t... | [
{
"created": "Fri, 28 Sep 2007 07:09:34 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Chakraborty",
"Sanjukta",
""
],
[
"Chakraborty",
"Subenoy",
""
],
[
"Debnath",
"Ujjal",
""
]
] | Gravitational collapse in (n+2) dimensional quasi-spherical space-time is studied for a fluid with non vanishing radial pressure. An exact analytic solution is obtained (ignoring the arbitrary integration function) for the equation of state $p_{r}=(\gamma-1)\rho.$ The singularity is studied locally by comparing the tim... |
1910.12463 | Stefano Viaggiu | Stefano Viaggiu | The cosmological constant from Planckian fluctuations and the averaging
procedure | Accepted for publicationa in Foundations of Physics | Found Phys (2019) | 10.1007/s10701-019-00308-5 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper I continue the investigation in \cite{1,1b} concerning my
proposal on the nature of the cosmological constant. In particular, I study
both mathematically and physically the quantum Planckian context and I provide,
in order to depict quantum fluctuations and in absence of a complete quantum
gravity theor... | [
{
"created": "Mon, 28 Oct 2019 06:47:31 GMT",
"version": "v1"
}
] | 2019-11-05 | [
[
"Viaggiu",
"Stefano",
""
]
] | In this paper I continue the investigation in \cite{1,1b} concerning my proposal on the nature of the cosmological constant. In particular, I study both mathematically and physically the quantum Planckian context and I provide, in order to depict quantum fluctuations and in absence of a complete quantum gravity theory,... |
1609.04428 | Claudio Cremaschini | Claudio Cremaschini and Massimo Tessarotto | Hamiltonian approach to GR - Part 2: covariant theory of quantum gravity | null | Eur. Phys. J. C (2017) 77:330 | 10.1140/epjc/s10052-017-4855-0 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A non-perturbative quantum field theory of General Relativity is presented
which leads to a new realization of the theory of Covariant Quantum-Gravity
(CQG-theory). The treatment is founded on the recently-identified Hamiltonian
structure associated with the classical space-time, i.e., the corresponding
manifestly-co... | [
{
"created": "Wed, 14 Sep 2016 20:13:48 GMT",
"version": "v1"
},
{
"created": "Mon, 22 May 2017 20:11:01 GMT",
"version": "v2"
}
] | 2017-05-24 | [
[
"Cremaschini",
"Claudio",
""
],
[
"Tessarotto",
"Massimo",
""
]
] | A non-perturbative quantum field theory of General Relativity is presented which leads to a new realization of the theory of Covariant Quantum-Gravity (CQG-theory). The treatment is founded on the recently-identified Hamiltonian structure associated with the classical space-time, i.e., the corresponding manifestly-cova... |
2012.01889 | Wolfgang Wieland | Wolfgang Wieland | Null infinity as an open Hamiltonian system | published version, typos removed | J. High Energ. Phys. 2021, 95 (2021) | 10.1007/JHEP04(2021)095 | null | gr-qc hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | When a system emits gravitational radiation, the Bondi mass decreases. If the
Bondi energy is Hamiltonian, it can thus only be a time dependent Hamiltonian.
In this paper, we show that the Bondi energy can be understood as a
time-dependent Hamiltonian on the covariant phase space. Our derivation starts
from the Hamil... | [
{
"created": "Thu, 3 Dec 2020 13:12:13 GMT",
"version": "v1"
},
{
"created": "Tue, 13 Apr 2021 19:18:55 GMT",
"version": "v2"
}
] | 2021-04-15 | [
[
"Wieland",
"Wolfgang",
""
]
] | When a system emits gravitational radiation, the Bondi mass decreases. If the Bondi energy is Hamiltonian, it can thus only be a time dependent Hamiltonian. In this paper, we show that the Bondi energy can be understood as a time-dependent Hamiltonian on the covariant phase space. Our derivation starts from the Hamilto... |
0802.4077 | J. Fernando Barbero G. | Ivan Agullo, J. Fernando Barbero G., Jacobo Diaz-Polo, Enrique
Fernandez-Borja, Eduardo J. S. Villase\~nor | Black hole state counting in Loop Quantum Gravity: A number theoretical
approach | Accepted for publication in Physical Review Letters | Phys.Rev.Lett.100:211301,2008 | 10.1103/PhysRevLett.100.211301 | null | gr-qc math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We give a practical method to exactly compute black hole entropy in the
framework of Loop Quantum Gravity. Along the way we provide a complete
characterization of the relevant sector of the spectrum of the area operator,
including degeneracies, and determine the number of solutions to the projection
constraint analyt... | [
{
"created": "Wed, 27 Feb 2008 20:41:27 GMT",
"version": "v1"
},
{
"created": "Wed, 30 Apr 2008 14:22:18 GMT",
"version": "v2"
}
] | 2008-11-26 | [
[
"Agullo",
"Ivan",
""
],
[
"G.",
"J. Fernando Barbero",
""
],
[
"Diaz-Polo",
"Jacobo",
""
],
[
"Fernandez-Borja",
"Enrique",
""
],
[
"Villaseñor",
"Eduardo J. S.",
""
]
] | We give a practical method to exactly compute black hole entropy in the framework of Loop Quantum Gravity. Along the way we provide a complete characterization of the relevant sector of the spectrum of the area operator, including degeneracies, and determine the number of solutions to the projection constraint analytic... |
gr-qc/0203036 | Fotini Markopoulou Kalamara | Fotini Markopoulou | Coarse graining in spin foam models | 38 pages, many eps figures | Class.Quant.Grav. 20 (2003) 777-800 | null | null | gr-qc hep-th | null | We formulate the problem of finding the low-energy limit of spin foam models
as a coarse-graining problem in the sense of statistical physics. This suggests
that renormalization group methods may be used to find that limit. However,
since spin foams are models of spacetime at Planck scale, novel issues arise:
these m... | [
{
"created": "Tue, 12 Mar 2002 01:32:32 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Markopoulou",
"Fotini",
""
]
] | We formulate the problem of finding the low-energy limit of spin foam models as a coarse-graining problem in the sense of statistical physics. This suggests that renormalization group methods may be used to find that limit. However, since spin foams are models of spacetime at Planck scale, novel issues arise: these mic... |
2307.10290 | Nils A. Nilsson | Nils A. Nilsson | Dynamical dark energy from spacetime-symmetry breaking -- late-time
behaviour and phantom crossing | Clarifications, analysis and references added, slight notation
change. Accepted for publication in Physics of the Dark Universe | null | null | null | gr-qc astro-ph.CO | http://creativecommons.org/licenses/by/4.0/ | We investigate the late-time cosmological dynamics in a simple case of
explicit spacetime-symmetry breaking. By expanding in a small symmetry-breaking
coefficient we are able to write the Friedmann equations as $\Lambda$CDM +
dynamical dark energy, which we show contains logarithmic dependence of the
scale factor. We... | [
{
"created": "Tue, 18 Jul 2023 14:26:48 GMT",
"version": "v1"
},
{
"created": "Thu, 2 May 2024 01:12:39 GMT",
"version": "v2"
}
] | 2024-05-03 | [
[
"Nilsson",
"Nils A.",
""
]
] | We investigate the late-time cosmological dynamics in a simple case of explicit spacetime-symmetry breaking. By expanding in a small symmetry-breaking coefficient we are able to write the Friedmann equations as $\Lambda$CDM + dynamical dark energy, which we show contains logarithmic dependence of the scale factor. We f... |
gr-qc/9512043 | Roumen Borissov | Roumen Borissov (Temple University), Seth Major (CGPG), and Lee Smolin
(CGPG) | The geometry of quantum spin networks | 16 pages, 35 Postscript figures, uses epsfig.sty | Class.Quant.Grav. 13 (1996) 3183-3196 | 10.1088/0264-9381/13/12/009 | CGPG-95/12-4 | gr-qc | null | The discrete picture of geometry arising from the loop representation of
quantum gravity can be extended by a quantum deformation. The operators for
area and volume defined in the q-deformation of the theory are partly
diagonalized. The eigenstates are expressed in terms of q-deformed spin
networks. The q-deformation... | [
{
"created": "Wed, 27 Dec 1995 16:35:44 GMT",
"version": "v1"
}
] | 2009-10-28 | [
[
"Borissov",
"Roumen",
"",
"Temple University"
],
[
"Major",
"Seth",
"",
"CGPG"
],
[
"Smolin",
"Lee",
"",
"CGPG"
]
] | The discrete picture of geometry arising from the loop representation of quantum gravity can be extended by a quantum deformation. The operators for area and volume defined in the q-deformation of the theory are partly diagonalized. The eigenstates are expressed in terms of q-deformed spin networks. The q-deformation b... |
1909.07756 | Paul Tod | Paul Tod | Spacetimes with all Penrose limits diagonalisable | 13 pages, no figures; revised version as accepted in Class.Quant.Grav | null | 10.1088/1361-6382/ab738a | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider the problem of finding all space-time metrics for which all
plane-wave Penrose limits are diagonalisable plane waves. This requirement
leads to a conformally invariant differential condition on the Weyl spinor
which we analyse for different algebraic types in the Petrov-Pirani-Penrose
classification. The ... | [
{
"created": "Tue, 17 Sep 2019 13:02:04 GMT",
"version": "v1"
},
{
"created": "Fri, 7 Feb 2020 16:56:07 GMT",
"version": "v2"
}
] | 2020-04-08 | [
[
"Tod",
"Paul",
""
]
] | We consider the problem of finding all space-time metrics for which all plane-wave Penrose limits are diagonalisable plane waves. This requirement leads to a conformally invariant differential condition on the Weyl spinor which we analyse for different algebraic types in the Petrov-Pirani-Penrose classification. The on... |
2207.12168 | Panagiotis Mavrogiannis | Panagiotis Mavrogiannis | Law of elasticity and fracture limit of magnetic forcelines under their
gravitational deformation | 18 pages, no figures, minor corrections | null | 10.1098/rspa.2023.0048 | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | Magnetic fields are a very special form of elastic medium. Within
astrophysical environments (magnetised stars and protogalaxies) they counteract
shear and rotational distortions as well as gravitational collapse. Their
vector nature allows for their extraordinary coupling with spacetime curvature
in the framework of... | [
{
"created": "Mon, 25 Jul 2022 13:11:44 GMT",
"version": "v1"
},
{
"created": "Tue, 2 Aug 2022 09:16:46 GMT",
"version": "v2"
},
{
"created": "Thu, 8 Dec 2022 19:35:11 GMT",
"version": "v3"
},
{
"created": "Thu, 19 Jan 2023 22:42:45 GMT",
"version": "v4"
},
{
"cre... | 2023-07-19 | [
[
"Mavrogiannis",
"Panagiotis",
""
]
] | Magnetic fields are a very special form of elastic medium. Within astrophysical environments (magnetised stars and protogalaxies) they counteract shear and rotational distortions as well as gravitational collapse. Their vector nature allows for their extraordinary coupling with spacetime curvature in the framework of g... |
1910.08451 | Karim Van Aelst | Karim Van Aelst, Eric Gourgoulhon, Philippe Grandcl\'ement, Christos
Charmousis | Hairy rotating black holes in cubic Galileon theory | 31 pages, 9 figures; v2 minor improvements, added references, minor
typos corrected, version published in Classical and Quantum Gravity | Class. Quantum Grav. 37 035007 (2020) | 10.1088/1361-6382/ab6391 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Numerical solutions for asymptotically flat rotating black holes in the cubic
Galileon theory are presented. These black holes are endowed with a nontrivial
scalar field and exhibit a non-Schwarzschild behaviour: faster than $1/r$
convergence to Minkowski spacetime at spatial infinity and hence vanishing of
the Komar... | [
{
"created": "Fri, 18 Oct 2019 14:52:51 GMT",
"version": "v1"
},
{
"created": "Thu, 23 Jan 2020 15:18:44 GMT",
"version": "v2"
}
] | 2020-01-24 | [
[
"Van Aelst",
"Karim",
""
],
[
"Gourgoulhon",
"Eric",
""
],
[
"Grandclément",
"Philippe",
""
],
[
"Charmousis",
"Christos",
""
]
] | Numerical solutions for asymptotically flat rotating black holes in the cubic Galileon theory are presented. These black holes are endowed with a nontrivial scalar field and exhibit a non-Schwarzschild behaviour: faster than $1/r$ convergence to Minkowski spacetime at spatial infinity and hence vanishing of the Komar m... |
1802.09663 | Diego Carranza | Diego A. Carranza and Juan A. Valiente Kroon | Killing boundary data for anti-de Sitter-like spacetimes | 15 pages | Class. Quantum Grav. 35, 155011 (2018) | 10.1088/1361-6382/aacdd2 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Given an initial-boundary value problem for an anti-de Sitter-like spacetime,
we analyse conditions on the conformal boundary ensuring the existence of
Killing vectors in the spacetime arising from this problem. This analysis makes
use of a system of conformal wave equations describing the propagation of the
Killing ... | [
{
"created": "Tue, 27 Feb 2018 00:57:21 GMT",
"version": "v1"
},
{
"created": "Tue, 10 Jul 2018 14:35:38 GMT",
"version": "v2"
}
] | 2018-12-19 | [
[
"Carranza",
"Diego A.",
""
],
[
"Kroon",
"Juan A. Valiente",
""
]
] | Given an initial-boundary value problem for an anti-de Sitter-like spacetime, we analyse conditions on the conformal boundary ensuring the existence of Killing vectors in the spacetime arising from this problem. This analysis makes use of a system of conformal wave equations describing the propagation of the Killing eq... |
1401.1759 | J. David Vergara | Marcos Rosenbaum, J. David Vergara, Rom\'an Ju\'arez and A.A. Minzoni | A Twisted ${\mathcal C}^{\star}$-algebra formulation of Quantum
Cosmology with application to the Bianchi I model | 31 pages, 10 figures, to appear in PRD | Phys. Rev. D 89, 085038 (2014) | 10.1103/PhysRevD.89.085038 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A twisted ${\mathcal C}^\star $- algebra of the extended (noncommutative)
Heisenberg-Weyl group has been constructed which takes into account the
Uncertainty Principle for coordinates in the Planck length regime. This general
construction is then used to generate an appropriate Hilbert space and
observables for the n... | [
{
"created": "Wed, 8 Jan 2014 17:25:00 GMT",
"version": "v1"
},
{
"created": "Thu, 9 Jan 2014 18:49:18 GMT",
"version": "v2"
},
{
"created": "Mon, 31 Mar 2014 23:29:48 GMT",
"version": "v3"
}
] | 2014-04-30 | [
[
"Rosenbaum",
"Marcos",
""
],
[
"Vergara",
"J. David",
""
],
[
"Juárez",
"Román",
""
],
[
"Minzoni",
"A. A.",
""
]
] | A twisted ${\mathcal C}^\star $- algebra of the extended (noncommutative) Heisenberg-Weyl group has been constructed which takes into account the Uncertainty Principle for coordinates in the Planck length regime. This general construction is then used to generate an appropriate Hilbert space and observables for the non... |
gr-qc/0310123 | Suresh Maran k | Suresh K. Maran | Spin Foam Models of Gravity and BF Theory as evolution of Spin Networks | This article has been replaced by gr-qc/0412011 | null | null | null | gr-qc | null | This article has been replaced by gr-qc/0412011
| [
{
"created": "Wed, 29 Oct 2003 21:16:38 GMT",
"version": "v1"
},
{
"created": "Fri, 31 Oct 2003 18:17:36 GMT",
"version": "v2"
},
{
"created": "Tue, 4 Nov 2003 14:55:04 GMT",
"version": "v3"
},
{
"created": "Thu, 6 Nov 2003 06:59:11 GMT",
"version": "v4"
},
{
"cre... | 2007-05-23 | [
[
"Maran",
"Suresh K.",
""
]
] | This article has been replaced by gr-qc/0412011 |
1910.02924 | Klaountia Pasmatsiou | Yi-Zen Chu, Klaountia Pasmatsiou, Glenn D. Starkman | Finite-Size Effects On The Self-Force | null | Phys. Rev. D 101, 104020 (2020) | 10.1103/PhysRevD.101.104020 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Electromagnetic and linear gravitational radiation do not solely propagate on
the null cone in 3+1 dimensions in curved spacetimes, contrary to their
well-known behavior in flat spacetime. Their additional propagation inside the
null cone is known as the tail effect. A compact body will produce a signal
whose tail wi... | [
{
"created": "Mon, 7 Oct 2019 17:27:23 GMT",
"version": "v1"
},
{
"created": "Wed, 11 Mar 2020 19:23:42 GMT",
"version": "v2"
},
{
"created": "Sun, 29 Mar 2020 17:01:27 GMT",
"version": "v3"
},
{
"created": "Fri, 15 May 2020 07:14:13 GMT",
"version": "v4"
}
] | 2020-05-20 | [
[
"Chu",
"Yi-Zen",
""
],
[
"Pasmatsiou",
"Klaountia",
""
],
[
"Starkman",
"Glenn D.",
""
]
] | Electromagnetic and linear gravitational radiation do not solely propagate on the null cone in 3+1 dimensions in curved spacetimes, contrary to their well-known behavior in flat spacetime. Their additional propagation inside the null cone is known as the tail effect. A compact body will produce a signal whose tail will... |
0808.1107 | Alejandro Satz | Eugenio Bianchi, Alejandro Satz | Semiclassical regime of Regge calculus and spin foams | 30 pages, no figures. Updated version with minor corrections, one
reference added | Nucl.Phys.B808:546-568,2009 | 10.1016/j.nuclphysb.2008.09.005 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Recent attempts to recover the graviton propagator from spin foam models
involve the use of a boundary quantum state peaked on a classical geometry. The
question arises whether beyond the case of a single simplex this suffices for
peaking the interior geometry in a semiclassical configuration. In this paper
we explor... | [
{
"created": "Thu, 7 Aug 2008 20:03:56 GMT",
"version": "v1"
},
{
"created": "Wed, 24 Sep 2008 14:44:29 GMT",
"version": "v2"
}
] | 2008-12-18 | [
[
"Bianchi",
"Eugenio",
""
],
[
"Satz",
"Alejandro",
""
]
] | Recent attempts to recover the graviton propagator from spin foam models involve the use of a boundary quantum state peaked on a classical geometry. The question arises whether beyond the case of a single simplex this suffices for peaking the interior geometry in a semiclassical configuration. In this paper we explore ... |
1005.1387 | Khalid Saifullah | A. R. Kashif, K. Saifullah | Curvature and Weyl collineations of spacetimes | null | Proc. 12th Marcel Grossmann Meeting on General Relativity, World
Scientific, 2010 | null | null | gr-qc math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Lie symmetries of various geometrical and physical quantities in general
relativity play an important role in understanding the curvature structure of
manifolds. The Riemann curvature and Weyl tensors are two fourth-rank tensors
in the theory. Interrelations between the symmetries of these two tensors
(known as colli... | [
{
"created": "Sun, 9 May 2010 11:37:32 GMT",
"version": "v1"
}
] | 2010-05-11 | [
[
"Kashif",
"A. R.",
""
],
[
"Saifullah",
"K.",
""
]
] | Lie symmetries of various geometrical and physical quantities in general relativity play an important role in understanding the curvature structure of manifolds. The Riemann curvature and Weyl tensors are two fourth-rank tensors in the theory. Interrelations between the symmetries of these two tensors (known as colline... |
2406.10821 | Amir Hadi Ziaie | Amir Hadi Ziaie and Mohammad Reza Mehdizadeh | Casimir Wormholes in Brans-Dicke Theory | 26 pages and 10 figures | Class. Quantum Grav. 41, 145001 (2024) | 10.1088/1361-6382/ad5136 | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | In recent years there has been a growing interest in the field of wormhole
physics in the presence of the Casimir effect. As this effect provides negative
energy density, it can be utilized as an ideal candidate for the exotic matter
required for creating a traversable wormhole. In the context of modified
theories of... | [
{
"created": "Sun, 16 Jun 2024 07:07:45 GMT",
"version": "v1"
}
] | 2024-06-18 | [
[
"Ziaie",
"Amir Hadi",
""
],
[
"Mehdizadeh",
"Mohammad Reza",
""
]
] | In recent years there has been a growing interest in the field of wormhole physics in the presence of the Casimir effect. As this effect provides negative energy density, it can be utilized as an ideal candidate for the exotic matter required for creating a traversable wormhole. In the context of modified theories of g... |
1312.2580 | Sergiu I. Vacaru | Vyacheslav Ruchin, Olivia Vacaru and Sergiu I. Vacaru | On Relativistic Generalization of Perelman's W-entropy and Statistical
Thermodynamic Description of Gravitational Fields | latex2e, v4 is an accepted to EPJC substantial extension of a former
letter type paper on 10 pages to a research article on 41 pages; a new author
added, the paper's title and permanent and visiting affiliations were
correspondingly modified; and new results, conclusions and references are
provided | Eur. Phys. J. C 77 (2017) 184 | 10.1140/epjc/s10052-017-4712-1 | null | gr-qc math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Using double 2+2 and 3+1 nonholonomic fibrations on Lorentz manifolds, we
extend the concept of W-entropy for gravitational fields in the general
relativity, GR, theory. Such F- and W-functionals were introduced in the Ricci
flow theory of three dimensional, 3-d, Riemannian metrics by G. Perelman,
arXiv: math.DG/0211... | [
{
"created": "Sun, 8 Dec 2013 13:25:06 GMT",
"version": "v1"
},
{
"created": "Tue, 17 Dec 2013 16:59:20 GMT",
"version": "v2"
},
{
"created": "Fri, 25 Sep 2015 07:53:10 GMT",
"version": "v3"
},
{
"created": "Mon, 27 Feb 2017 13:55:55 GMT",
"version": "v4"
}
] | 2017-03-28 | [
[
"Ruchin",
"Vyacheslav",
""
],
[
"Vacaru",
"Olivia",
""
],
[
"Vacaru",
"Sergiu I.",
""
]
] | Using double 2+2 and 3+1 nonholonomic fibrations on Lorentz manifolds, we extend the concept of W-entropy for gravitational fields in the general relativity, GR, theory. Such F- and W-functionals were introduced in the Ricci flow theory of three dimensional, 3-d, Riemannian metrics by G. Perelman, arXiv: math.DG/021115... |
1307.6241 | Betti Hartmann | Yves Brihaye, Betti Hartmann and Sardor Tojiev | AdS solitons with conformal scalar hair | 18 pages including 12 figures; v2: 19 pages including 12 figures,
definition of mass added, some figures replaced; v3: typos corrected, matches
version accepted for publication in Phys. Rev. D | Phys. Rev. D 88, 104006 (2013) | 10.1103/PhysRevD.88.104006 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study spherically symmetric soliton solutions in a model with a
conformally coupled scalar field as well as in full conformal gravity. We
observe that a new type of limiting behaviour appears for particular choices of
the self-coupling of the scalar field, i.e. the solitons interpolate smoothly
between the Anti-de... | [
{
"created": "Tue, 23 Jul 2013 20:34:01 GMT",
"version": "v1"
},
{
"created": "Mon, 19 Aug 2013 20:17:35 GMT",
"version": "v2"
},
{
"created": "Tue, 5 Nov 2013 17:31:39 GMT",
"version": "v3"
}
] | 2013-11-20 | [
[
"Brihaye",
"Yves",
""
],
[
"Hartmann",
"Betti",
""
],
[
"Tojiev",
"Sardor",
""
]
] | We study spherically symmetric soliton solutions in a model with a conformally coupled scalar field as well as in full conformal gravity. We observe that a new type of limiting behaviour appears for particular choices of the self-coupling of the scalar field, i.e. the solitons interpolate smoothly between the Anti-de S... |
gr-qc/9902034 | Valter Moretti | Valter Moretti (Math. Dept. Trento University) | Proof of the symmetry of the off-diagonal heat-kernel and Hadamard's
expansion coefficients in general $C^{\infty}$ Riemannian manifolds | 30 pages, latex, no figures, minor errors corrected, English
improved, shortened version accepted for publication in Commun. Math. Phys | Commun.Math.Phys. 208 (1999) 283-309 | 10.1007/s002200050759 | UTM 547 | gr-qc math-ph math.MP | null | We consider the problem of the symmetry of the off-diagonal heat-kernel
coefficients as well as the coefficients corresponding to the
short-distance-divergent part of the Hadamard expansion in general smooth
(analytic or not) manifolds. The requirement of such a symmetry played a
central r\^{o}le in the theory of the... | [
{
"created": "Thu, 11 Feb 1999 15:06:13 GMT",
"version": "v1"
},
{
"created": "Wed, 2 Jun 1999 08:35:08 GMT",
"version": "v2"
}
] | 2009-10-31 | [
[
"Moretti",
"Valter",
"",
"Math. Dept. Trento University"
]
] | We consider the problem of the symmetry of the off-diagonal heat-kernel coefficients as well as the coefficients corresponding to the short-distance-divergent part of the Hadamard expansion in general smooth (analytic or not) manifolds. The requirement of such a symmetry played a central r\^{o}le in the theory of the p... |
0705.2656 | Xin Zhang | Xin Zhang, Yi Ling | Inflationary universe in loop quantum cosmology | 21 pages, 4 figures; accepted for publication in JCAP | JCAP0708:012,2007 | 10.1088/1475-7516/2007/08/012 | null | gr-qc astro-ph hep-ph hep-th | null | Loop quantum cosmology provides a nice solution of avoiding the big bang
singularity through a big bounce mechanism in the high energy region. In loop
quantum cosmology an inflationary universe is emergent after the big bounce, no
matter what matter component is filled in the universe. A super-inflation phase
without... | [
{
"created": "Fri, 18 May 2007 08:48:10 GMT",
"version": "v1"
},
{
"created": "Mon, 23 Jul 2007 08:49:17 GMT",
"version": "v2"
}
] | 2008-11-26 | [
[
"Zhang",
"Xin",
""
],
[
"Ling",
"Yi",
""
]
] | Loop quantum cosmology provides a nice solution of avoiding the big bang singularity through a big bounce mechanism in the high energy region. In loop quantum cosmology an inflationary universe is emergent after the big bounce, no matter what matter component is filled in the universe. A super-inflation phase without p... |
2211.13154 | Anish Agashe | Anish Agashe and Mustapha Ishak | An Almost-FLRW Universe as the Averaged Geometry in Macroscopic Gravity | Accepted for publication in Gravitation and Cosmology | null | 10.1134/S0202289323020020 | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | It is well-known that spacetime averaging is an operation that does not
commute with building the Einstein tensor. In the framework of Macroscopic
gravity (MG), a covariant averaging procedure, this non-commutativity gives
averaged field equations with an additional correction term known as
back-reaction. It is impor... | [
{
"created": "Wed, 23 Nov 2022 17:31:47 GMT",
"version": "v1"
}
] | 2023-06-28 | [
[
"Agashe",
"Anish",
""
],
[
"Ishak",
"Mustapha",
""
]
] | It is well-known that spacetime averaging is an operation that does not commute with building the Einstein tensor. In the framework of Macroscopic gravity (MG), a covariant averaging procedure, this non-commutativity gives averaged field equations with an additional correction term known as back-reaction. It is importa... |
1902.07287 | Pierre Fleury | Pierre Fleury | Gravitation: from Newton to Einstein | 107 pages, 23 figures, 77 exercises. Lectures given at the African
Institute for Mathematical Sciences of Cameroon (AIMS-Cameroon) in January
2018 and January 2019. V2: Added an introduction and a conclusion, corrected
a few typos. V3: sign issue corrected in eq. (II.135) | Springer Briefs in Physics 2019 | 10.1007/978-3-030-32001-0 | null | gr-qc physics.ed-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | This document gathers the notes of a 30-hour review course on gravitation,
which I delivered in January 2018 and January 2019 at the African Institute for
Mathematical Sciences of Cameroon (AIMS-Cameroon). Its main goal is to propose
a big picture of gravitation, where Einstein's relativity arises as a natural
increm... | [
{
"created": "Tue, 19 Feb 2019 21:07:59 GMT",
"version": "v1"
},
{
"created": "Wed, 27 Nov 2019 14:35:24 GMT",
"version": "v2"
},
{
"created": "Sat, 3 Aug 2024 10:18:55 GMT",
"version": "v3"
}
] | 2024-08-06 | [
[
"Fleury",
"Pierre",
""
]
] | This document gathers the notes of a 30-hour review course on gravitation, which I delivered in January 2018 and January 2019 at the African Institute for Mathematical Sciences of Cameroon (AIMS-Cameroon). Its main goal is to propose a big picture of gravitation, where Einstein's relativity arises as a natural incremen... |
2308.06318 | James Alvey | James Alvey, Uddipta Bhardwaj, Samaya Nissanke, Christoph Weniger | What to do when things get crowded? Scalable joint analysis of
overlapping gravitational wave signals | 6 pages. 3 figures. Codes: peregrine is publicly available at
https://github.com/PEREGRINE-GW/peregrine/tree/overlapping, swyft is
available at https://github.com/undark-lab/swyft | null | null | null | gr-qc astro-ph.CO astro-ph.HE astro-ph.IM | http://creativecommons.org/licenses/by/4.0/ | The gravitational wave sky is starting to become very crowded, with the
fourth science run (O4) at LIGO expected to detect $\mathcal{O}(100)$ compact
object coalescence signals. Data analysis issues start to arise as we look
further forwards, however. In particular, as the event rate increases in e.g.
next generation... | [
{
"created": "Fri, 11 Aug 2023 18:00:01 GMT",
"version": "v1"
}
] | 2023-08-15 | [
[
"Alvey",
"James",
""
],
[
"Bhardwaj",
"Uddipta",
""
],
[
"Nissanke",
"Samaya",
""
],
[
"Weniger",
"Christoph",
""
]
] | The gravitational wave sky is starting to become very crowded, with the fourth science run (O4) at LIGO expected to detect $\mathcal{O}(100)$ compact object coalescence signals. Data analysis issues start to arise as we look further forwards, however. In particular, as the event rate increases in e.g. next generation d... |
1412.0605 | Letizia Sammut | The LIGO Scientific Collaboration, the Virgo Collaboration: J. Aasi,
B. P. Abbott, R. Abbott, T. Abbott, M. R. Abernathy, F. Acernese, K. Ackley,
C. Adams, T. Adams, T. Adams, P. Addesso, R. X. Adhikari, V. Adya, C.
Affeldt, M. Agathos, K. Agatsuma, N. Aggarwal, O. D. Aguiar, A. Ain, P.
Ajith, A. Alemic, B. All... | A directed search for gravitational waves from Scorpius X-1 with initial
LIGO | 19 pages, 8 figures | Phys. Rev. D 91, 062008 (2015) | 10.1103/PhysRevD.91.062008 | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present results of a search for continuously-emitted gravitational
radiation, directed at the brightest low-mass X-ray binary, Scorpius X-1. Our
semi-coherent analysis covers 10 days of LIGO S5 data ranging from 50-550 Hz,
and performs an incoherent sum of coherent $\mathcal{F}$-statistic power
distributed amongst... | [
{
"created": "Mon, 1 Dec 2014 19:30:54 GMT",
"version": "v1"
}
] | 2015-04-01 | [
[
"The LIGO Scientific Collaboration",
"",
""
],
[
"the Virgo Collaboration",
"",
""
],
[
"Aasi",
"J.",
""
],
[
"Abbott",
"B. P.",
""
],
[
"Abbott",
"R.",
""
],
[
"Abbott",
"T.",
""
],
[
"Abernathy",
"M. R.",
... | We present results of a search for continuously-emitted gravitational radiation, directed at the brightest low-mass X-ray binary, Scorpius X-1. Our semi-coherent analysis covers 10 days of LIGO S5 data ranging from 50-550 Hz, and performs an incoherent sum of coherent $\mathcal{F}$-statistic power distributed amongst f... |
0707.2559 | Ernst Nils Dorband | Denis Pollney, Christian Reisswig, Luciano Rezzolla, Bela Szilagyi,
Marcus Ansorg, Barrett Deris, Peter Diener, Ernst Nils Dorband, Michael
Koppitz, Alessandro Nagar and Erik Schnetter | Recoil velocities from equal-mass binary black-hole mergers: a
systematic investigation of spin-orbit aligned configurations | 24 pages, 15 figures, 5 tables | Phys.Rev.D76:124002,2007 | 10.1103/PhysRevD.76.124002 | null | gr-qc astro-ph | null | Binary black-hole systems with spins aligned with the orbital angular
momentum are of special interest, as studies indicate that this configuration
is preferred in nature. If the spins of the two bodies differ, there can be a
prominent beaming of the gravitational radiation during the late plunge,
causing a recoil of... | [
{
"created": "Tue, 17 Jul 2007 16:16:30 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Pollney",
"Denis",
""
],
[
"Reisswig",
"Christian",
""
],
[
"Rezzolla",
"Luciano",
""
],
[
"Szilagyi",
"Bela",
""
],
[
"Ansorg",
"Marcus",
""
],
[
"Deris",
"Barrett",
""
],
[
"Diener",
"Peter",
""
],
[... | Binary black-hole systems with spins aligned with the orbital angular momentum are of special interest, as studies indicate that this configuration is preferred in nature. If the spins of the two bodies differ, there can be a prominent beaming of the gravitational radiation during the late plunge, causing a recoil of t... |
2109.04051 | Daiki Saito | Daiki Saito, Chul-Moon Yoo | False Vacuum Decay in Rotating BTZ Spacetimes | 23 pages, 15 figures, added the detailed information of the
reference, accepted version for publication | null | 10.1103/PhysRevD.104.124037 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We analyse vacuum decay in rotating BTZ black hole spacetimes with the thin
wall approximation. Possible parameter regions for the vacuum decay are
clarified. We find that the nucleation rate is dominated by the bounce solution
with the static shell configuration. The nucleation rate of the static shell
decreases wit... | [
{
"created": "Thu, 9 Sep 2021 06:12:36 GMT",
"version": "v1"
},
{
"created": "Tue, 21 Sep 2021 09:52:26 GMT",
"version": "v2"
},
{
"created": "Mon, 29 Nov 2021 01:15:41 GMT",
"version": "v3"
},
{
"created": "Tue, 30 Nov 2021 02:13:36 GMT",
"version": "v4"
}
] | 2021-12-22 | [
[
"Saito",
"Daiki",
""
],
[
"Yoo",
"Chul-Moon",
""
]
] | We analyse vacuum decay in rotating BTZ black hole spacetimes with the thin wall approximation. Possible parameter regions for the vacuum decay are clarified. We find that the nucleation rate is dominated by the bounce solution with the static shell configuration. The nucleation rate of the static shell decreases with ... |
gr-qc/0402021 | Babur Mirza Dr. | Babur M. Mirza | Travelling Magnetic Waves due to Plasma Surrounding a Slow Rotating
Compact Gravitational Source | null | null | null | null | gr-qc astro-ph.HE astro-ph.SR | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The magnetic field due to an axially symmetric, hot and highly conducting
plasma, taken as an ideal magnetohydrodynamic fluid, surrounding a slow
rotating compact gravitational object is studied within the context of
Einstein-Maxwell field equations. It is assumed that whereas the plasma is
effected by the background... | [
{
"created": "Wed, 4 Feb 2004 17:54:41 GMT",
"version": "v1"
},
{
"created": "Wed, 10 Mar 2004 10:58:51 GMT",
"version": "v2"
},
{
"created": "Fri, 31 Mar 2017 13:49:56 GMT",
"version": "v3"
},
{
"created": "Fri, 29 Sep 2017 09:34:27 GMT",
"version": "v4"
}
] | 2017-10-02 | [
[
"Mirza",
"Babur M.",
""
]
] | The magnetic field due to an axially symmetric, hot and highly conducting plasma, taken as an ideal magnetohydrodynamic fluid, surrounding a slow rotating compact gravitational object is studied within the context of Einstein-Maxwell field equations. It is assumed that whereas the plasma is effected by the background s... |
gr-qc/0401012 | Sawa Manoff | Sawa Manoff | Doppler effect and Hubble effect in different models of space-time in
the case of auto-parallel motion of the observer | 12 pages, LaTex | null | null | null | gr-qc | null | Doppler effect and Hubble effect in different models of space-time in the
case of auto-parallel motion of the observer are considered. The Doppler effect
and shift frequency parameter are specialized for the case of auto-parallel
motion of the observer. The Hubble effect and shift frequency parameter are
considered f... | [
{
"created": "Sun, 4 Jan 2004 11:59:41 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Manoff",
"Sawa",
""
]
] | Doppler effect and Hubble effect in different models of space-time in the case of auto-parallel motion of the observer are considered. The Doppler effect and shift frequency parameter are specialized for the case of auto-parallel motion of the observer. The Hubble effect and shift frequency parameter are considered for... |
1705.05696 | Luca Giacomelli | Luca Giacomelli, Stefano Liberati | Rotating black hole solutions in relativistic analogue gravity | 15 pages, 4 figures | Phys. Rev. D 96, 064014 (2017) | 10.1103/PhysRevD.96.064014 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Simulation and experimental realization of acoustic black holes in analogue
gravity systems have lead to a novel understanding of relevant phenomena such
as Hawking radiation or superradiance. We explore here the possibility to use
relativistic systems for simulating rotating black hole solutions and possibly
get an ... | [
{
"created": "Tue, 16 May 2017 13:13:19 GMT",
"version": "v1"
}
] | 2017-09-20 | [
[
"Giacomelli",
"Luca",
""
],
[
"Liberati",
"Stefano",
""
]
] | Simulation and experimental realization of acoustic black holes in analogue gravity systems have lead to a novel understanding of relevant phenomena such as Hawking radiation or superradiance. We explore here the possibility to use relativistic systems for simulating rotating black hole solutions and possibly get an ac... |
1809.04465 | Martin Bojowald | Jian-Pin Wu, Martin Bojowald, Yongge Ma | Anomaly freedom in perturbative models of Euclidean loop quantum gravity | 34 pages | Phys. Rev. D 98, 106009 (2018) | 10.1103/PhysRevD.98.106009 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Euclidean gravity provides an interesting test system for an analysis of
cosmological perturbations in an effective Hamiltonian constraint with holonomy
modifications from loop quantum gravity. This paper presents a discussion of
scalar modes, with a specific form of the holonomy modification function
derived from a ... | [
{
"created": "Wed, 12 Sep 2018 14:01:37 GMT",
"version": "v1"
}
] | 2018-11-21 | [
[
"Wu",
"Jian-Pin",
""
],
[
"Bojowald",
"Martin",
""
],
[
"Ma",
"Yongge",
""
]
] | Euclidean gravity provides an interesting test system for an analysis of cosmological perturbations in an effective Hamiltonian constraint with holonomy modifications from loop quantum gravity. This paper presents a discussion of scalar modes, with a specific form of the holonomy modification function derived from a ge... |
2210.15634 | Virgo Publications | F. Acernese, M. Agathos, A. Ain, S. Albanesi, A. Allocca, A. Amato, T.
Andrade, N. Andres, M. Andr\'es-Carcasona, T. Andri\'c, S. Ansoldi, S.
Antier, T. Apostolatos, E. Z. Appavuravther, M. Ar\`ene, N. Arnaud, M.
Assiduo, S. Assis de Souza Melo, P. Astone, F. Aubin, S. Babak, F. Badaracco,
M. K. M. Bader, S. Ba... | Virgo Detector Characterization and Data Quality: tools | 44 pages, 16 figures. New version, resubmitted to Class. and Quantum
Grav. This is the "Tools" part of preprint arXiv:2205.01555 [gr-qc] which has
been split into two companion articles: one about the tools and methods, the
other about the analyses of the O3 Virgo data | null | 10.1088/1361-6382/acdf36 | null | gr-qc astro-ph.IM | http://creativecommons.org/licenses/by/4.0/ | Detector characterization and data quality studies -- collectively referred
to as {\em DetChar} activities in this article -- are paramount to the
scientific exploitation of the joint dataset collected by the LIGO-Virgo-KAGRA
global network of ground-based gravitational-wave (GW) detectors. They take
place during eac... | [
{
"created": "Fri, 14 Oct 2022 15:57:00 GMT",
"version": "v1"
},
{
"created": "Sat, 25 Mar 2023 16:29:00 GMT",
"version": "v2"
}
] | 2023-08-16 | [
[
"Acernese",
"F.",
""
],
[
"Agathos",
"M.",
""
],
[
"Ain",
"A.",
""
],
[
"Albanesi",
"S.",
""
],
[
"Allocca",
"A.",
""
],
[
"Amato",
"A.",
""
],
[
"Andrade",
"T.",
""
],
[
"Andres",
"N.",
""
... | Detector characterization and data quality studies -- collectively referred to as {\em DetChar} activities in this article -- are paramount to the scientific exploitation of the joint dataset collected by the LIGO-Virgo-KAGRA global network of ground-based gravitational-wave (GW) detectors. They take place during each ... |
gr-qc/9604045 | Paulo Rodrigues Lima Vargas Moniz | P.V. Moniz | Quantization of a Friedmann-Robertson-Walker Model with Gauge Fields in
N=1 Supergravity | 19 pages, plain LaTeX file | null | null | DAMTP R95/36 | gr-qc | null | The purpose of this paper is to investigate a specific FRW model derived from
the theory of N=1 supergravity with gauged supermatter. The supermatter content
is restricted to a vector supermultiplet. This objective is particularly
worthwhile. In fact, it was pointed in ref. ({\em Class. Quantum Grav. {\bf 12}
{\rm (}... | [
{
"created": "Wed, 24 Apr 1996 08:44:20 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Moniz",
"P. V.",
""
]
] | The purpose of this paper is to investigate a specific FRW model derived from the theory of N=1 supergravity with gauged supermatter. The supermatter content is restricted to a vector supermultiplet. This objective is particularly worthwhile. In fact, it was pointed in ref. ({\em Class. Quantum Grav. {\bf 12} {\rm (} {... |
gr-qc/0005095 | Joseph Samuel | Joseph Samuel | Is Barbero's Hamiltonian formulation a Gauge Theory of Lorentzian
Gravity? | 12 pages, no figures, revised in the light of referee's comments,
accepted for publication in Classical and Quantum Gravity | Class.Quant.Grav.17:L141-L148,2000 | 10.1088/0264-9381/17/20/101 | null | gr-qc | null | This letter is a critique of Barbero's constrained Hamiltonian formulation of
General Relativity on which current work in Loop Quantum Gravity is based.
While we do not dispute the correctness of Barbero's formulation of general
relativity, we offer some criticisms of an aesthetic nature. We point out that
unlike Ash... | [
{
"created": "Mon, 22 May 2000 08:23:23 GMT",
"version": "v1"
},
{
"created": "Tue, 19 Sep 2000 12:49:21 GMT",
"version": "v2"
},
{
"created": "Wed, 20 Sep 2000 10:18:02 GMT",
"version": "v3"
}
] | 2010-04-06 | [
[
"Samuel",
"Joseph",
""
]
] | This letter is a critique of Barbero's constrained Hamiltonian formulation of General Relativity on which current work in Loop Quantum Gravity is based. While we do not dispute the correctness of Barbero's formulation of general relativity, we offer some criticisms of an aesthetic nature. We point out that unlike Ashte... |
0912.0107 | Janyce Franc | Janyce Franc, Nazario Morgado, Raffaele Flaminio, Ronny Nawrodt, Iain
Martin, Liam Cunningham, Alan Cumming, Sheila Rowan and James Hough | Mirror thermal noise in laser interferometer gravitational wave
detectors operating at room and cryogenic temperature | 28 pages, 6 figures, 4 tables | null | null | ET-02109 | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Mirror thermal noise is and will remain one of the main limitations to the
sensitivity of gravitational wave detectors based on laser interferometers. We
report about projected mirror thermal noise due to losses in the mirror
coatings and substrates. The evaluation includes all kind of thermal noises
presently known.... | [
{
"created": "Tue, 1 Dec 2009 11:11:50 GMT",
"version": "v1"
}
] | 2009-12-02 | [
[
"Franc",
"Janyce",
""
],
[
"Morgado",
"Nazario",
""
],
[
"Flaminio",
"Raffaele",
""
],
[
"Nawrodt",
"Ronny",
""
],
[
"Martin",
"Iain",
""
],
[
"Cunningham",
"Liam",
""
],
[
"Cumming",
"Alan",
""
],
[
... | Mirror thermal noise is and will remain one of the main limitations to the sensitivity of gravitational wave detectors based on laser interferometers. We report about projected mirror thermal noise due to losses in the mirror coatings and substrates. The evaluation includes all kind of thermal noises presently known. S... |
gr-qc/9612056 | Luis Anchordoqui | Luis A. Anchordoqui | Wormholes in spacetime with torsion | 10 pages revtex | Mod.Phys.Lett. A13 (1998) 1095-1100 | 10.1142/S0217732398001169 | null | gr-qc | null | Analytical wormhole solutions in $U_4$ theory are presented. It is discussed
whether the extremely short range repulsive forces, related to the spin angular
momentum of matter, could be the ``carrier'' of the exoticity that threads the
wormhole throat.
| [
{
"created": "Thu, 19 Dec 1996 20:27:16 GMT",
"version": "v1"
},
{
"created": "Mon, 23 Dec 1996 13:17:18 GMT",
"version": "v2"
},
{
"created": "Tue, 21 Oct 1997 15:07:13 GMT",
"version": "v3"
}
] | 2009-10-28 | [
[
"Anchordoqui",
"Luis A.",
""
]
] | Analytical wormhole solutions in $U_4$ theory are presented. It is discussed whether the extremely short range repulsive forces, related to the spin angular momentum of matter, could be the ``carrier'' of the exoticity that threads the wormhole throat. |
1506.08764 | Naresh Dadhich | Naresh Dadhich | A discerning gravitational property for gravitational equation in higher
dimensions | null | Euro. Phys. J. C 76, 104 (2016) | 10.1140/epjc/s10052-016-3933-z | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | It is well-known that Einstein gravity is kinematic (no non-trivial vacuum
solution;i.e. Riemann vanishes whenever Ricci does so) in $3$ dimension because
Riemann is entirely given in terms of Ricci. Could this property be
universalized for all odd dimensions in a generalized theory? The answer is
yes, and this prope... | [
{
"created": "Tue, 16 Jun 2015 12:58:23 GMT",
"version": "v1"
}
] | 2017-10-19 | [
[
"Dadhich",
"Naresh",
""
]
] | It is well-known that Einstein gravity is kinematic (no non-trivial vacuum solution;i.e. Riemann vanishes whenever Ricci does so) in $3$ dimension because Riemann is entirely given in terms of Ricci. Could this property be universalized for all odd dimensions in a generalized theory? The answer is yes, and this propert... |
1301.0895 | Li-Ming Cao | Li-Ming Cao, Jianfei Xu and Zhe Zeng | Maximum Entropy Principle for Self-gravitating Perfect Fluid in Lovelock
Gravity | v1,revtex4, 9 pages, no figure; v2, two references added, typos
corrected | Phys. Rev. D. 87. 064005 (2013) | 10.1103/PhysRevD.87.064005 | USTC-ICTS-13-01 | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider a static self-gravitating system consisting of perfect fluid with
isometries of an $(n-2)$-dimensional maximally symmetric space in Lovelock
gravity theory. A straightforward analysis of the time-time component of the
equations of motion suggests a generalized mass function.
Tolman-Oppenheimer-Volkoff lik... | [
{
"created": "Sat, 5 Jan 2013 11:35:59 GMT",
"version": "v1"
},
{
"created": "Mon, 21 Jan 2013 08:53:16 GMT",
"version": "v2"
}
] | 2013-03-19 | [
[
"Cao",
"Li-Ming",
""
],
[
"Xu",
"Jianfei",
""
],
[
"Zeng",
"Zhe",
""
]
] | We consider a static self-gravitating system consisting of perfect fluid with isometries of an $(n-2)$-dimensional maximally symmetric space in Lovelock gravity theory. A straightforward analysis of the time-time component of the equations of motion suggests a generalized mass function. Tolman-Oppenheimer-Volkoff like ... |
2310.14241 | Ronni Amorim G. G. | Ronni Amorim and Vinicius Rispoli and S\'ergio Ulhoa and Kayo Ara\'ujo | Nonrelativistic Spinless Particle in Vicinity of Schwarzschild-like
Black Hole | 10 pages, no figures | null | null | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | In this article we analyze the behavior of a non-relativistic spinless
particle near the event horizon of a Schwarzschild-like black hole. In this
way, the Schr\"odinger covariant equation that describes the particle is
obtained from the Galilean covariance technique. The Schr\"odinger equation in
a Schwarzschild-lik... | [
{
"created": "Sun, 22 Oct 2023 09:35:20 GMT",
"version": "v1"
},
{
"created": "Sun, 10 Dec 2023 21:17:24 GMT",
"version": "v2"
}
] | 2023-12-12 | [
[
"Amorim",
"Ronni",
""
],
[
"Rispoli",
"Vinicius",
""
],
[
"Ulhoa",
"Sérgio",
""
],
[
"Araújo",
"Kayo",
""
]
] | In this article we analyze the behavior of a non-relativistic spinless particle near the event horizon of a Schwarzschild-like black hole. In this way, the Schr\"odinger covariant equation that describes the particle is obtained from the Galilean covariance technique. The Schr\"odinger equation in a Schwarzschild-like ... |
gr-qc/9904049 | Yosef Verbin | M. Christensen, A.L. Larsen and Y. Verbin | Complete Classification of the String-like Solutions of the Gravitating
Abelian Higgs Model | 12 pages, 4 figures | Phys. Rev. D 60, 125012 (1999) | 10.1103/PhysRevD.60.125012 | null | gr-qc hep-th | null | The static cylindrically symmetric solutions of the gravitating Abelian Higgs
model form a two parameter family. In this paper we give a complete
classification of the string-like solutions of this system. We show that the
parameter plane is composed of two different regions with the following
characteristics: One re... | [
{
"created": "Tue, 20 Apr 1999 12:29:07 GMT",
"version": "v1"
}
] | 2016-08-25 | [
[
"Christensen",
"M.",
""
],
[
"Larsen",
"A. L.",
""
],
[
"Verbin",
"Y.",
""
]
] | The static cylindrically symmetric solutions of the gravitating Abelian Higgs model form a two parameter family. In this paper we give a complete classification of the string-like solutions of this system. We show that the parameter plane is composed of two different regions with the following characteristics: One regi... |
1603.09450 | Wen Zhao | Xing Zhang, Wen Zhao, He Huang, Yifu Cai | Post-Newtonian parameters and cosmological constant of screened modified
gravity | 15 pages, 1 figure, Phys. Rev. D accepted | Phys. Rev. D 93, 124003 (2016) | 10.1103/PhysRevD.93.124003 | null | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Screened modified gravity (SMG) is a kind of scalar-tensor theories with
screening mechanisms, which can generate screening effect to suppress the fifth
force in high density environments and pass the solar system tests. Meanwhile,
the potential of scalar field in the theories can drive the acceleration of the
late u... | [
{
"created": "Thu, 31 Mar 2016 04:32:41 GMT",
"version": "v1"
},
{
"created": "Tue, 17 May 2016 01:12:19 GMT",
"version": "v2"
},
{
"created": "Wed, 18 May 2016 01:29:26 GMT",
"version": "v3"
}
] | 2016-06-14 | [
[
"Zhang",
"Xing",
""
],
[
"Zhao",
"Wen",
""
],
[
"Huang",
"He",
""
],
[
"Cai",
"Yifu",
""
]
] | Screened modified gravity (SMG) is a kind of scalar-tensor theories with screening mechanisms, which can generate screening effect to suppress the fifth force in high density environments and pass the solar system tests. Meanwhile, the potential of scalar field in the theories can drive the acceleration of the late uni... |
2304.14129 | Shaun Fell | Shaun David Brocus Fell, Lavinia Heisenberg, Do\u{g}a Veske | Detecting Fundamental Vector Fields with LISA | 21 Pages, 8 Figures | null | 10.1103/PhysRevD.108.083010 | null | gr-qc astro-ph.HE | http://creativecommons.org/licenses/by/4.0/ | The advent of gravitational wave astronomy has seen a huge influx of new
predictions for potential discoveries of beyond the Standard Model fields. The
coupling of all fundamental fields to gravity, together with its dominance on
large scales, makes gravitational physics a rich laboratory to study
fundamental physics... | [
{
"created": "Thu, 27 Apr 2023 12:24:19 GMT",
"version": "v1"
},
{
"created": "Tue, 12 Sep 2023 13:56:56 GMT",
"version": "v2"
}
] | 2023-10-13 | [
[
"Fell",
"Shaun David Brocus",
""
],
[
"Heisenberg",
"Lavinia",
""
],
[
"Veske",
"Doğa",
""
]
] | The advent of gravitational wave astronomy has seen a huge influx of new predictions for potential discoveries of beyond the Standard Model fields. The coupling of all fundamental fields to gravity, together with its dominance on large scales, makes gravitational physics a rich laboratory to study fundamental physics. ... |
2011.06154 | Jun-Qi Guo | Jun-Qi Guo, Pankaj S. Joshi, Ramesh Narayan, Lin Zhang | Accretion disks around naked singularities | 23 pages, 9 figures, 2 tables | Class. Quantum Grav. 38, 035012 (2021) | 10.1088/1361-6382/abce44 | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | We investigate here the thermal properties of accretion disks in a spacetime
for some galactic density profiles in spherical symmetry. The matter
distributions have a finite outer radius with a naked central singularity. The
luminosities of the accretion disks for some density profile models are found
to be higher th... | [
{
"created": "Thu, 12 Nov 2020 01:40:38 GMT",
"version": "v1"
}
] | 2021-01-01 | [
[
"Guo",
"Jun-Qi",
""
],
[
"Joshi",
"Pankaj S.",
""
],
[
"Narayan",
"Ramesh",
""
],
[
"Zhang",
"Lin",
""
]
] | We investigate here the thermal properties of accretion disks in a spacetime for some galactic density profiles in spherical symmetry. The matter distributions have a finite outer radius with a naked central singularity. The luminosities of the accretion disks for some density profile models are found to be higher than... |
2310.03660 | Maria J. Rodriguez | Malcolm Perry and Maria J. Rodriguez | Dynamical Love Numbers for Kerr Black Holes | 35 pages, 1 figure | null | null | null | gr-qc hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | While static Love number vanish identically for Kerr black holes, we show
that the corresponding dynamical tidal coefficients are generically non-zero
and exhibit logarithmic behavior. The computational method employs a related
but simpler scheme consistent with CFT descriptions, low-frequency regimes and
post-Newton... | [
{
"created": "Thu, 5 Oct 2023 16:38:03 GMT",
"version": "v1"
}
] | 2023-10-06 | [
[
"Perry",
"Malcolm",
""
],
[
"Rodriguez",
"Maria J.",
""
]
] | While static Love number vanish identically for Kerr black holes, we show that the corresponding dynamical tidal coefficients are generically non-zero and exhibit logarithmic behavior. The computational method employs a related but simpler scheme consistent with CFT descriptions, low-frequency regimes and post-Newtonia... |
gr-qc/9406041 | null | Lajos Di\'osi | Comments on "Objectification of classical properties induced by quantum
vacuum fluctuations" | 4 pages Latex, 21-June-1994 | Phys.Lett.197A:183-184,1995 | 10.1016/0375-9601(94)00846-H | null | gr-qc | null | We argue that in standard quantum electrodynamics radiative corrections do
not lead to decoherence of unexcited atomic systems. The proposal of Santos
relies upon deliberate switching on and off the vacuum interactions.
| [
{
"created": "Thu, 23 Jun 1994 14:51:00 GMT",
"version": "v1"
}
] | 2011-08-04 | [
[
"Diósi",
"Lajos",
""
]
] | We argue that in standard quantum electrodynamics radiative corrections do not lead to decoherence of unexcited atomic systems. The proposal of Santos relies upon deliberate switching on and off the vacuum interactions. |
1402.3179 | Fernando Oscar Minotti | F. O. Minotti | Longitudinal forces in pinched electric currents | 3 pages, no figures | null | null | null | gr-qc physics.plasm-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | It is shown that the theory of Mbelek and Lachi\`eze-Rey predicts
longitudinal forces of gravitational origin in pinched current distributions,
with magnitudes large enough to have noticeable effects.
| [
{
"created": "Thu, 13 Feb 2014 15:36:11 GMT",
"version": "v1"
}
] | 2014-02-14 | [
[
"Minotti",
"F. O.",
""
]
] | It is shown that the theory of Mbelek and Lachi\`eze-Rey predicts longitudinal forces of gravitational origin in pinched current distributions, with magnitudes large enough to have noticeable effects. |
gr-qc/9802001 | Enrico Onofri | J. Maharana (CERN and Istitute of Physics, Bhubaneswar, India), E.
Onofri (INFN and Dipartimento di Fisica, Universita` di Parma, Italy) G.
Veneziano (CERN) | A numerical simulation of pre-big bang cosmology | 19 pages, revtex, matlab code available at
http://www.fis.unipr.it/~onofri | JHEP 9804:004,1998 | 10.1088/1126-6708/1998/04/004 | CERN-TH/98-24, UPRF-98-1 | gr-qc hep-th | null | We analyse numerically the onset of pre-big bang inflation in an
inhomogeneous, spherically symmetric Universe. Adding a small dilatonic
perturbation to a trivial (Milne) background, we find that suitable regions of
space undergo dilaton-driven inflation and quickly become spatially flat
($\Omega \to 1$). Numerical c... | [
{
"created": "Sat, 31 Jan 1998 10:42:15 GMT",
"version": "v1"
},
{
"created": "Wed, 11 Feb 1998 17:43:12 GMT",
"version": "v2"
}
] | 2010-02-03 | [
[
"Maharana",
"J.",
"",
"CERN and Istitute of Physics, Bhubaneswar, India"
],
[
"Onofri",
"E.",
"",
"INFN and Dipartimento di Fisica, Universita` di Parma, Italy"
],
[
"Veneziano",
"G.",
"",
"CERN"
]
] | We analyse numerically the onset of pre-big bang inflation in an inhomogeneous, spherically symmetric Universe. Adding a small dilatonic perturbation to a trivial (Milne) background, we find that suitable regions of space undergo dilaton-driven inflation and quickly become spatially flat ($\Omega \to 1$). Numerical cal... |
2203.16449 | Medine Ildes | Medine Ildes and Metin Arik | Analytic Solutions of Scalar Field Cosmology, Mathematical Structures
for Early Inflation and Late Time Accelerated Expansion | 41 pages, 3 figures | null | 10.1140/epjc/s10052-023-11273-9 | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | We study the most general cosmological model with real scalar field which is
minimally coupled to gravity. Our calculations are based on
Friedmann-Lemaitre-Robertson-Walker (FLRW) background metric. Field equations
consist of three differential equations. We switch independent variable from
time to scale factor by ch... | [
{
"created": "Wed, 30 Mar 2022 16:53:32 GMT",
"version": "v1"
}
] | 2023-03-22 | [
[
"Ildes",
"Medine",
""
],
[
"Arik",
"Metin",
""
]
] | We study the most general cosmological model with real scalar field which is minimally coupled to gravity. Our calculations are based on Friedmann-Lemaitre-Robertson-Walker (FLRW) background metric. Field equations consist of three differential equations. We switch independent variable from time to scale factor by chan... |
1309.5008 | David Hilditch | David Hilditch, Thomas W. Baumgarte, Andreas Weyhausen, Tim Dietrich,
Bernd Bruegmann, Pedro J. Montero and Ewald Mueller | Collapse of Nonlinear Gravitational Waves in Moving-Puncture Coordinates | null | Phys. Rev. D 88, 103009 (2013) | 10.1103/PhysRevD.88.103009 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study numerical evolutions of nonlinear gravitational waves in
moving-puncture coordinates. We adopt two different types of initial data --
Brill and Teukolsky waves -- and evolve them with two independent codes
producing consistent results. We find that Brill data fail to produce long-term
evolutions for common c... | [
{
"created": "Thu, 19 Sep 2013 14:57:42 GMT",
"version": "v1"
}
] | 2013-11-27 | [
[
"Hilditch",
"David",
""
],
[
"Baumgarte",
"Thomas W.",
""
],
[
"Weyhausen",
"Andreas",
""
],
[
"Dietrich",
"Tim",
""
],
[
"Bruegmann",
"Bernd",
""
],
[
"Montero",
"Pedro J.",
""
],
[
"Mueller",
"Ewald",
""
... | We study numerical evolutions of nonlinear gravitational waves in moving-puncture coordinates. We adopt two different types of initial data -- Brill and Teukolsky waves -- and evolve them with two independent codes producing consistent results. We find that Brill data fail to produce long-term evolutions for common cho... |
0706.1534 | Simone Speziale | Simone Speziale | Coupling gauge theory to spinfoam 3d quantum gravity | 18 pages | Class.Quant.Grav.24:5139-5160,2007 | 10.1088/0264-9381/24/20/014 | pi-qg-46 | gr-qc hep-th | null | We construct a spinfoam model for Yang-Mills theory coupled to quantum
gravity in three dimensional riemannian spacetime. We define the partition
function of the coupled system as a power series in g_0^2 G that can be
evaluated order by order using grasping rules and the recoupling theory. With
respect to previous at... | [
{
"created": "Mon, 11 Jun 2007 19:51:04 GMT",
"version": "v1"
},
{
"created": "Thu, 25 Oct 2007 19:17:13 GMT",
"version": "v2"
}
] | 2008-11-26 | [
[
"Speziale",
"Simone",
""
]
] | We construct a spinfoam model for Yang-Mills theory coupled to quantum gravity in three dimensional riemannian spacetime. We define the partition function of the coupled system as a power series in g_0^2 G that can be evaluated order by order using grasping rules and the recoupling theory. With respect to previous atte... |
2007.04531 | Lijing Shao | Lijing Shao, Norbert Wex, Shuang-Yong Zhou | New Graviton Mass Bound from Binary Pulsars | 14 pages, 10 figures; accepted by PRD | Physical Review D 102 (2020) 024069 | 10.1103/PhysRevD.102.024069 | USTC-ICTS/PCFT-20-15 | gr-qc astro-ph.CO hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In Einstein's general relativity, gravity is mediated by a massless metric
field. The extension of general relativity to consistently include a mass for
the graviton has profound implications for gravitation and cosmology. Salient
features of various massive gravity theories can be captured by Galileon
models, the si... | [
{
"created": "Thu, 9 Jul 2020 03:17:29 GMT",
"version": "v1"
}
] | 2020-07-24 | [
[
"Shao",
"Lijing",
""
],
[
"Wex",
"Norbert",
""
],
[
"Zhou",
"Shuang-Yong",
""
]
] | In Einstein's general relativity, gravity is mediated by a massless metric field. The extension of general relativity to consistently include a mass for the graviton has profound implications for gravitation and cosmology. Salient features of various massive gravity theories can be captured by Galileon models, the simp... |
gr-qc/9512025 | null | F.I. Cooperstock, V. Faraoni and G.P. Perry (University of Victoria) | Probing the gravitational geon | Replaced with revised version (substantial changes and additions,
conclusions unchanged), 36 pages, LaTex, 3 figures available from the authors | Int.J.Mod.Phys.D5:375-406,1996 | 10.1142/S0218271896000242 | null | gr-qc | null | The Brill-Hartle gravitational geon construct as a spherical shell of small
amplitude, high frequency gravitational waves is reviewed and critically
analyzed. The Regge-Wheeler formalism is used to represent gravitational wave
perturbations of the spherical background as a superposition of tensor
spherical harmonics ... | [
{
"created": "Tue, 12 Dec 1995 00:32:14 GMT",
"version": "v1"
},
{
"created": "Thu, 10 Oct 1996 22:09:12 GMT",
"version": "v2"
}
] | 2010-11-19 | [
[
"Cooperstock",
"F. I.",
"",
"University of Victoria"
],
[
"Faraoni",
"V.",
"",
"University of Victoria"
],
[
"Perry",
"G. P.",
"",
"University of Victoria"
]
] | The Brill-Hartle gravitational geon construct as a spherical shell of small amplitude, high frequency gravitational waves is reviewed and critically analyzed. The Regge-Wheeler formalism is used to represent gravitational wave perturbations of the spherical background as a superposition of tensor spherical harmonics an... |
2301.04529 | Zhen Pan | Zhen Pan, Huan Yang | Improving the detection sensitivity to primordial stochastic
gravitational waves with reduced astrophysical foregrounds | 12 pages, 4 figs | Physical Review D 107 (12), 123036, 2023 | 10.1103/PhysRevD.107.123036 | null | gr-qc | http://creativecommons.org/licenses/by-nc-sa/4.0/ | One of the primary targets of third-generation (3G) ground-based
gravitational wave (GW) detectors is detecting the stochastic GW background
(SGWB) from early universe processes. The astrophysical foreground from compact
binary mergers will be a major contamination to the background, which must be
reduced to high pre... | [
{
"created": "Wed, 11 Jan 2023 15:47:05 GMT",
"version": "v1"
},
{
"created": "Tue, 2 May 2023 18:20:15 GMT",
"version": "v2"
},
{
"created": "Sat, 1 Jul 2023 03:14:41 GMT",
"version": "v3"
},
{
"created": "Tue, 11 Jul 2023 13:31:01 GMT",
"version": "v4"
}
] | 2023-07-12 | [
[
"Pan",
"Zhen",
""
],
[
"Yang",
"Huan",
""
]
] | One of the primary targets of third-generation (3G) ground-based gravitational wave (GW) detectors is detecting the stochastic GW background (SGWB) from early universe processes. The astrophysical foreground from compact binary mergers will be a major contamination to the background, which must be reduced to high preci... |
2008.12244 | Naoki Tsukamoto | Naoki Tsukamoto | Deflection angle of a light ray reflected by a general marginally
unstable photon sphere in a strong deflection limit | 10 pages, 5 figures, minor correction, title changed, accepted for
publication in Physical Review D | Phys. Rev. D 102, 104029 (2020) | 10.1103/PhysRevD.102.104029 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate the deflection angle in a strong deflection limit for a
marginally unstable photon sphere in a general asymptotically flat, static and
spherically symmetric spacetime under some assumptions to calculate
observables. The deflection angle of a light ray reflected by the marginally
unstable photon sphere ... | [
{
"created": "Thu, 27 Aug 2020 16:39:21 GMT",
"version": "v1"
},
{
"created": "Thu, 22 Oct 2020 14:41:09 GMT",
"version": "v2"
}
] | 2020-11-12 | [
[
"Tsukamoto",
"Naoki",
""
]
] | We investigate the deflection angle in a strong deflection limit for a marginally unstable photon sphere in a general asymptotically flat, static and spherically symmetric spacetime under some assumptions to calculate observables. The deflection angle of a light ray reflected by the marginally unstable photon sphere di... |
1006.3778 | Artur Alho | Artur Alho, Filipe C. Mena, Juan A. Valiente Kroon | The Einstein-Friedrich-nonlinear scalar field system and the stability
of scalar field Cosmologies | Version 4: Matches final published version | null | null | null | gr-qc math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A frame representation is used to derive a first order quasi-linear symmetric
hyperbolic system for a scalar field minimally coupled to gravity. This
procedure is inspired by similar evolution equations introduced by Friedrich to
study the Einstein-Euler system. The resulting evolution system is used to show
that sma... | [
{
"created": "Fri, 18 Jun 2010 19:09:46 GMT",
"version": "v1"
},
{
"created": "Wed, 20 Apr 2011 16:41:26 GMT",
"version": "v2"
},
{
"created": "Thu, 6 Aug 2015 12:28:20 GMT",
"version": "v3"
},
{
"created": "Sat, 14 Oct 2017 22:25:39 GMT",
"version": "v4"
}
] | 2017-10-17 | [
[
"Alho",
"Artur",
""
],
[
"Mena",
"Filipe C.",
""
],
[
"Kroon",
"Juan A. Valiente",
""
]
] | A frame representation is used to derive a first order quasi-linear symmetric hyperbolic system for a scalar field minimally coupled to gravity. This procedure is inspired by similar evolution equations introduced by Friedrich to study the Einstein-Euler system. The resulting evolution system is used to show that small... |
gr-qc/9306002 | Luis J. Garay | Luis J. Garay | Hilbert space of wormholes | 23 pages, 2 figures available upon request, REVTEX | Phys.Rev.D48:1710-1721,1993 | 10.1103/PhysRevD.48.1710 | null | gr-qc | null | Wormhole boundary conditions for the Wheeler--DeWitt equation can be derived
from the path integral formulation. It is proposed that the wormhole wave
function must be square integrable in the maximal analytic extension of
minisuperspace. Quantum wormholes can be invested with a Hilbert space
structure, the inner pro... | [
{
"created": "Tue, 1 Jun 1993 14:43:00 GMT",
"version": "v1"
}
] | 2010-11-01 | [
[
"Garay",
"Luis J.",
""
]
] | Wormhole boundary conditions for the Wheeler--DeWitt equation can be derived from the path integral formulation. It is proposed that the wormhole wave function must be square integrable in the maximal analytic extension of minisuperspace. Quantum wormholes can be invested with a Hilbert space structure, the inner produ... |
2101.06760 | Richard Woodard | S. Katuwal (Florida), S. P. Miao (NCKU) and R. P. Woodard (Florida) | Inflaton Effective Potential from Photons for General $\epsilon$ | 42 pages, 15 figures, uses LaTeX2e. Version 2 slightly revised for
publication, now 44 pages | Phys. Rev. D 103, 105007 (2021) | 10.1103/PhysRevD.103.105007 | UFIFT-QG-20-06 | gr-qc astro-ph.CO hep-th | http://creativecommons.org/licenses/by/4.0/ | We accurately approximate the contribution that photons make to the effective
potential of a charged inflaton for inflationary geometries with an arbitrary
first slow roll parameter $\epsilon$. We find a small, nonlocal contribution
and a numerically larger, local part. The local part involves first and second
deriva... | [
{
"created": "Sun, 17 Jan 2021 19:40:06 GMT",
"version": "v1"
},
{
"created": "Mon, 31 May 2021 05:53:50 GMT",
"version": "v2"
}
] | 2021-06-01 | [
[
"Katuwal",
"S.",
"",
"Florida"
],
[
"Miao",
"S. P.",
"",
"NCKU"
],
[
"Woodard",
"R. P.",
"",
"Florida"
]
] | We accurately approximate the contribution that photons make to the effective potential of a charged inflaton for inflationary geometries with an arbitrary first slow roll parameter $\epsilon$. We find a small, nonlocal contribution and a numerically larger, local part. The local part involves first and second derivati... |
1710.00938 | Steven Carlip | J. Abajian, S. Carlip | Dimensional reduction in manifold-like causal sets | 8 pages, 7 figures | Phys. Rev. D 97, 066007 (2018) | 10.1103/PhysRevD.97.066007 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate the behavior of small subsets of causal sets that approximate
Minkowski space in three, four, and five dimensions, and show that their
effective dimension decreases smoothly at small distances. The details of the
short distance behavior depend on a choice of dimensional estimator, but for a
reasonable ... | [
{
"created": "Mon, 2 Oct 2017 23:21:17 GMT",
"version": "v1"
}
] | 2018-03-14 | [
[
"Abajian",
"J.",
""
],
[
"Carlip",
"S.",
""
]
] | We investigate the behavior of small subsets of causal sets that approximate Minkowski space in three, four, and five dimensions, and show that their effective dimension decreases smoothly at small distances. The details of the short distance behavior depend on a choice of dimensional estimator, but for a reasonable ve... |
1511.07501 | Oleg Zaslavskii | O. B. Zaslavskii | Is the super-Penrose process possible near black holes? | 16 pages. Presentation improved. To appear in PRD | Phys. Rev. D 93, 024056 (2016) | 10.1103/PhysRevD.93.024056 | null | gr-qc astro-ph.HE hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider collisions of particles near generic axially symmetric extremal
black holes. We examine possibility of indefinitely large extraction of energy
(the so-called super-Penrose process) in the limit when the point of collision
approaches the horizon. Three potential options are considered (fractional
powers of... | [
{
"created": "Mon, 23 Nov 2015 22:50:10 GMT",
"version": "v1"
},
{
"created": "Thu, 21 Jan 2016 12:10:05 GMT",
"version": "v2"
}
] | 2016-02-03 | [
[
"Zaslavskii",
"O. B.",
""
]
] | We consider collisions of particles near generic axially symmetric extremal black holes. We examine possibility of indefinitely large extraction of energy (the so-called super-Penrose process) in the limit when the point of collision approaches the horizon. Three potential options are considered (fractional powers of t... |
2106.05034 | Alexander Zhidenko | R. A. Konoplya, A. Zhidenko | Traversable Wormholes in General Relativity | (title changed) | Phys. Rev. Lett. 128, 091104 (2022) | 10.1103/PhysRevLett.128.091104 | null | gr-qc astro-ph.HE hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In [J. Blazquez-Salcedo, C. Knoll, E. Radu, Phys. Rev. Lett. 126 (2021)
no.10, 101102] asymptotically flat traversable wormhole solutions were obtained
in the Einstein-Dirac-Maxwell theory without using phantom matter. The
normalizable numerical solutions found therein require a peculiar behavior at
the throat: the m... | [
{
"created": "Wed, 9 Jun 2021 12:47:20 GMT",
"version": "v1"
},
{
"created": "Wed, 16 Jun 2021 10:05:20 GMT",
"version": "v2"
},
{
"created": "Mon, 13 Sep 2021 22:04:21 GMT",
"version": "v3"
},
{
"created": "Fri, 4 Mar 2022 18:06:08 GMT",
"version": "v4"
}
] | 2022-03-07 | [
[
"Konoplya",
"R. A.",
""
],
[
"Zhidenko",
"A.",
""
]
] | In [J. Blazquez-Salcedo, C. Knoll, E. Radu, Phys. Rev. Lett. 126 (2021) no.10, 101102] asymptotically flat traversable wormhole solutions were obtained in the Einstein-Dirac-Maxwell theory without using phantom matter. The normalizable numerical solutions found therein require a peculiar behavior at the throat: the mir... |
2104.12806 | Viktor T. Toth | J. W. Moffat and V. T. Toth | Scalar-Tensor-Vector modified gravity in light of the Planck 2018 data | 5 pages, 1 figure | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The recent data release by the Planck satellite collaboration presents a
renewed challenge for modified theories of gravitation. Such theories must be
capable of reproducing the observed angular power spectrum of the cosmic
microwave background radiation. For modified theories of gravity, an added
challenge lies with... | [
{
"created": "Mon, 26 Apr 2021 18:06:39 GMT",
"version": "v1"
}
] | 2021-04-28 | [
[
"Moffat",
"J. W.",
""
],
[
"Toth",
"V. T.",
""
]
] | The recent data release by the Planck satellite collaboration presents a renewed challenge for modified theories of gravitation. Such theories must be capable of reproducing the observed angular power spectrum of the cosmic microwave background radiation. For modified theories of gravity, an added challenge lies with t... |
2105.15130 | Pramit Rej | Pramit Rej, Piyali Bhar, and Megan Govender | Charged compact star in $f(R,T)$ gravity in Tolman-Kuchowicz spacetime | 15 Pages | The European Physical Journal C, 81, 316 (2021) | 10.1140/epjc/s10052-021-09127-3 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this current study, our main focus is to model a specific charged compact
star SAX J 1808.4-3658 (M = 0.88 $M_{\odot}$,\, R = 8.9 km) within the realm of
$f(R,\,T)$ modified gravity theory using the metric potentials proposed by
Tolman-Kuchowicz (Tolman, Phys Rev 55:364, 1939; Kuchowicz Acta Phys Pol
33:541, 1968)... | [
{
"created": "Thu, 27 May 2021 04:45:13 GMT",
"version": "v1"
}
] | 2021-06-01 | [
[
"Rej",
"Pramit",
""
],
[
"Bhar",
"Piyali",
""
],
[
"Govender",
"Megan",
""
]
] | In this current study, our main focus is to model a specific charged compact star SAX J 1808.4-3658 (M = 0.88 $M_{\odot}$,\, R = 8.9 km) within the realm of $f(R,\,T)$ modified gravity theory using the metric potentials proposed by Tolman-Kuchowicz (Tolman, Phys Rev 55:364, 1939; Kuchowicz Acta Phys Pol 33:541, 1968) a... |
gr-qc/9403062 | Nail R. Khusnutdinov | N R Khusnutdinov | Self - Interaction Force for the Particle in the Cone Space - Time | 9, CQG-94-0324 | Class.Quant.Grav.11:1807-1814,1994 | 10.1088/0264-9381/11/7/017 | null | gr-qc astro-ph | null | The force acting on the charged particle moving along an arbitrary trajectory
near the straight cosmic string is calculated. This interaction leads to the
scattering of particles by the cosmic string. The scattering cross section is
considered.
| [
{
"created": "Wed, 30 Mar 1994 09:56:15 GMT",
"version": "v1"
}
] | 2010-04-06 | [
[
"Khusnutdinov",
"N R",
""
]
] | The force acting on the charged particle moving along an arbitrary trajectory near the straight cosmic string is calculated. This interaction leads to the scattering of particles by the cosmic string. The scattering cross section is considered. |
gr-qc/0308033 | Badri Krishnan | Abhay Ashtekar and Badri Krishnan | Dynamical Horizons and their Properties | 44 pages, 2 figures, RevTeX4. Minor typos corrected. Final PRD
version | Phys.Rev. D68 (2003) 104030 | 10.1103/PhysRevD.68.104030 | null | gr-qc hep-th | null | A detailed description of how black holes grow in full, non-linear general
relativity is presented. The starting point is the notion of dynamical
horizons. Expressions of fluxes of energy and angular momentum carried by
gravitational waves across these horizons are obtained. Fluxes are local and
the energy flux is po... | [
{
"created": "Mon, 11 Aug 2003 16:18:56 GMT",
"version": "v1"
},
{
"created": "Fri, 15 Aug 2003 16:47:16 GMT",
"version": "v2"
},
{
"created": "Mon, 1 Sep 2003 07:21:24 GMT",
"version": "v3"
},
{
"created": "Fri, 17 Oct 2003 12:33:11 GMT",
"version": "v4"
}
] | 2016-08-31 | [
[
"Ashtekar",
"Abhay",
""
],
[
"Krishnan",
"Badri",
""
]
] | A detailed description of how black holes grow in full, non-linear general relativity is presented. The starting point is the notion of dynamical horizons. Expressions of fluxes of energy and angular momentum carried by gravitational waves across these horizons are obtained. Fluxes are local and the energy flux is posi... |
1411.4316 | Edward Anderson | Edward Anderson | Where to Apply Relationalism | 24 pages including 9 figures. Comments and references updated. arXiv
admin note: substantial text overlap with arXiv:1409.4117 | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Relationalism -- along the lines developed by Barbour and collaborators in
the past 3 decades -- can be considered an advance with 1/4 of the facets of
the canonical approach's Problem of Time as identified by Isham and Kuchar.
Indeed, almost all of the Problem of Time facets have classical counterparts,
since they a... | [
{
"created": "Sun, 16 Nov 2014 22:25:23 GMT",
"version": "v1"
},
{
"created": "Sun, 17 May 2015 19:50:35 GMT",
"version": "v2"
}
] | 2015-05-19 | [
[
"Anderson",
"Edward",
""
]
] | Relationalism -- along the lines developed by Barbour and collaborators in the past 3 decades -- can be considered an advance with 1/4 of the facets of the canonical approach's Problem of Time as identified by Isham and Kuchar. Indeed, almost all of the Problem of Time facets have classical counterparts, since they ari... |
gr-qc/0212103 | Leor Barack | Leor Barack and Amos Ori | Gravitational self-force on a particle orbiting a Kerr black hole | 4 pages, Latex. Version to appear in Physical Review Letters | Phys.Rev.Lett. 90 (2003) 111101 | 10.1103/PhysRevLett.90.111101 | null | gr-qc | null | We present a practical method for calculating the gravitational self-force,
as well as the electromagnetic and scalar self forces, for a particle in a
generic orbit around a Kerr black hole. In particular, we provide the values of
all the regularization parameters needed for implementing the (previously
introduced) {... | [
{
"created": "Wed, 25 Dec 2002 17:59:47 GMT",
"version": "v1"
},
{
"created": "Mon, 17 Mar 2003 20:18:26 GMT",
"version": "v2"
}
] | 2009-11-07 | [
[
"Barack",
"Leor",
""
],
[
"Ori",
"Amos",
""
]
] | We present a practical method for calculating the gravitational self-force, as well as the electromagnetic and scalar self forces, for a particle in a generic orbit around a Kerr black hole. In particular, we provide the values of all the regularization parameters needed for implementing the (previously introduced) {\i... |
1910.00427 | Saibal Ray | Suparna Biswas, Dibyendu Shee, Saibal Ray, F. Rahaman and B.K. Guha | Relativistic strange stars in Tolman-Kuchowicz spacetime | 32 pages, 9 figures, 2 tables | Annals of Physics 409 (2019) 167905 | 10.1016/j.aop.2019.05.004 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this article we propose a relativistic model of a static spherically
symmetric anisotropic strange star with the help of Tolman-Kuchowicz (TK)
metric potentials [Tolman, Phys. Rev. {\bf55}, 364 (1939) and Kuchowicz, Acta
Phys. Pol. {\bf33}, 541 (1968)]. The form of the potentials are
$\lambda(r)=\ln(1+ar^2+br^4)$ ... | [
{
"created": "Mon, 30 Sep 2019 07:31:49 GMT",
"version": "v1"
}
] | 2019-10-02 | [
[
"Biswas",
"Suparna",
""
],
[
"Shee",
"Dibyendu",
""
],
[
"Ray",
"Saibal",
""
],
[
"Rahaman",
"F.",
""
],
[
"Guha",
"B. K.",
""
]
] | In this article we propose a relativistic model of a static spherically symmetric anisotropic strange star with the help of Tolman-Kuchowicz (TK) metric potentials [Tolman, Phys. Rev. {\bf55}, 364 (1939) and Kuchowicz, Acta Phys. Pol. {\bf33}, 541 (1968)]. The form of the potentials are $\lambda(r)=\ln(1+ar^2+br^4)$ an... |
0708.2673 | Yosef Verbin | Y. Verbin | Solitonic and Non-Solitonic Q-Stars | To appear in the proceedings of 11th Marcel Grossmann Meeting,
Berlin, July 2006 | null | 10.1142/9789812834300_0396 | null | gr-qc hep-th | null | The properties of several types of Q-stars are studied and compared with
their flat space analogues, i.e. Q-balls. The analysis is based on calculating
the mass, global U(1) charge and binding energy for families of solutions
parametrized by the central value of the scalar field. The two most frequently
used Q-star m... | [
{
"created": "Mon, 20 Aug 2007 14:36:28 GMT",
"version": "v1"
}
] | 2016-11-15 | [
[
"Verbin",
"Y.",
""
]
] | The properties of several types of Q-stars are studied and compared with their flat space analogues, i.e. Q-balls. The analysis is based on calculating the mass, global U(1) charge and binding energy for families of solutions parametrized by the central value of the scalar field. The two most frequently used Q-star mod... |
1802.06977 | Soichiro Isoyama | Soichiro Isoyama, Hiroyuki Nakano, Takashi Nakamura | Multiband Gravitational-Wave Astronomy: Observing binary inspirals with
a decihertz detector, B-DECIGO | v3: 22 pages, 2 figures, matches the published version | Prog. Theor. Exp. Phys. (2018) 073E01 | 10.1093/ptep/pty078 | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | An evolving Japanese gravitational-wave (GW) mission in the deci-Hz band:
B-DECIGO (DECihertz laser Interferometer Gravitational wave Observatory) will
enable us to detect GW150914-like binary black holes, GW170817-like binary
neutron stars, and intermediate-mass binary black holes out to cosmological
distances. The ... | [
{
"created": "Tue, 20 Feb 2018 06:18:00 GMT",
"version": "v1"
},
{
"created": "Wed, 13 Jun 2018 20:22:34 GMT",
"version": "v2"
},
{
"created": "Wed, 8 Aug 2018 19:10:39 GMT",
"version": "v3"
}
] | 2018-08-10 | [
[
"Isoyama",
"Soichiro",
""
],
[
"Nakano",
"Hiroyuki",
""
],
[
"Nakamura",
"Takashi",
""
]
] | An evolving Japanese gravitational-wave (GW) mission in the deci-Hz band: B-DECIGO (DECihertz laser Interferometer Gravitational wave Observatory) will enable us to detect GW150914-like binary black holes, GW170817-like binary neutron stars, and intermediate-mass binary black holes out to cosmological distances. The B-... |
0911.5380 | Andrey Shoom A | Shohreh Abdolrahimi and Andrey A. Shoom | Analysis of the Fisher solution | 19 pages, 16 figures; Minor changes in the text | Phys.Rev.D81:024035,2010 | 10.1103/PhysRevD.81.024035 | Alberta-Thy-18-09 | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the $d$-dimensional Fisher solution which represents a static,
spherically symmetric, asymptotically flat spacetime with a massless scalar
field. The solution has two parameters, the mass and the "scalar charge." The
Fisher solution has a naked curvature singularity which divides the spacetime
manifold into ... | [
{
"created": "Sat, 28 Nov 2009 07:42:28 GMT",
"version": "v1"
},
{
"created": "Tue, 9 Feb 2010 18:56:29 GMT",
"version": "v2"
}
] | 2010-05-12 | [
[
"Abdolrahimi",
"Shohreh",
""
],
[
"Shoom",
"Andrey A.",
""
]
] | We study the $d$-dimensional Fisher solution which represents a static, spherically symmetric, asymptotically flat spacetime with a massless scalar field. The solution has two parameters, the mass and the "scalar charge." The Fisher solution has a naked curvature singularity which divides the spacetime manifold into tw... |
2402.06739 | Ahmad Al-Badawi | Ahmad Al-Badawi, Sohan Kumar Jha and Anisur Rahaman | Hairy black hole, Fermionic greybody factors, Quasinormal modes, Hawking
radiation, Power spectrum and sparsity | null | Eur. Phys. J. C (2024) 84:145 | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A hairy black hole (HBH) emerges due to matter surrounding the Schwarzschild
metric when using the Extended Gravitational Decoupling (GD) approach. The
fermionic greybody factors (GFs) and quasinormal modes (QNMs) as well as
Hawking spectra and sparsity of HBH solutions are investigated. We consider
massive and massl... | [
{
"created": "Fri, 9 Feb 2024 19:16:33 GMT",
"version": "v1"
}
] | 2024-02-13 | [
[
"Al-Badawi",
"Ahmad",
""
],
[
"Jha",
"Sohan Kumar",
""
],
[
"Rahaman",
"Anisur",
""
]
] | A hairy black hole (HBH) emerges due to matter surrounding the Schwarzschild metric when using the Extended Gravitational Decoupling (GD) approach. The fermionic greybody factors (GFs) and quasinormal modes (QNMs) as well as Hawking spectra and sparsity of HBH solutions are investigated. We consider massive and massles... |
1601.00746 | Antonio C. Guti\'errez-Pi\~neres | Antonio C. Guti\'errez-Pi\~neres, Abra\~ao J. S. Capistrano and
Hernando Quevedo | Test particles in a magnetized conformastatic spacetime | Updated version to match with the published version in Physical
Review D | Phys. Rev. D 93, 124009 (2016) | 10.1103/PhysRevD.93.124009 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A class of exact conformastatic solutions of the Einstein-Maxwell field
equations is presented in which the gravitational and electromagnetic
potentials are completely determined by a harmonic function. We derive the
equations of motion for neutral and charged particles in a spacetime background
characterized by this... | [
{
"created": "Tue, 5 Jan 2016 06:49:39 GMT",
"version": "v1"
},
{
"created": "Thu, 14 Jan 2016 10:14:44 GMT",
"version": "v2"
},
{
"created": "Fri, 25 Mar 2016 04:13:38 GMT",
"version": "v3"
},
{
"created": "Sat, 4 Jun 2016 00:26:31 GMT",
"version": "v4"
}
] | 2016-06-08 | [
[
"Gutiérrez-Piñeres",
"Antonio C.",
""
],
[
"Capistrano",
"Abraão J. S.",
""
],
[
"Quevedo",
"Hernando",
""
]
] | A class of exact conformastatic solutions of the Einstein-Maxwell field equations is presented in which the gravitational and electromagnetic potentials are completely determined by a harmonic function. We derive the equations of motion for neutral and charged particles in a spacetime background characterized by this c... |
2402.11614 | S. Davood Sadatian | S. Davood Sadatian, S. Mohamad Reza Hosseini | Modified Gravity Model $f(Q,T)$ and Wormhole Solution | 14 pages, 8 figures, accepted for publication in Advances in High
Energy Physics journal | null | null | null | gr-qc hep-th | http://creativecommons.org/licenses/by/4.0/ | We investigate wormhole solutions using the modified gravity model $f(Q,T)$
with viscosity and aim to find a solution for the existence of wormholes
mathematically without violating the energy conditions. We show that there is
no need to define a wormhole from exotic matter and analyze the equations with
numerical an... | [
{
"created": "Sun, 18 Feb 2024 15:08:06 GMT",
"version": "v1"
}
] | 2024-02-20 | [
[
"Sadatian",
"S. Davood",
""
],
[
"Hosseini",
"S. Mohamad Reza",
""
]
] | We investigate wormhole solutions using the modified gravity model $f(Q,T)$ with viscosity and aim to find a solution for the existence of wormholes mathematically without violating the energy conditions. We show that there is no need to define a wormhole from exotic matter and analyze the equations with numerical anal... |
2112.01490 | Matteo Lulli Dr | Matteo Lulli, Antonino Marciano, Xiaowen Shan | Stochastic Quantization of General Relativity \`a la Ricci-Flow | 15 pages; all sections have been revised | null | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We follow a new pathway to the definition of the Stochastic Quantization
(SQ), first proposed by Parisi and Wu, of the action functional yielding the
Einstein equations. Hinging on the functional similarities between the
Ricci-Flow equation and the SQ Langevin equations proposed by Rumpf, we push
forward a novel appr... | [
{
"created": "Thu, 2 Dec 2021 18:41:54 GMT",
"version": "v1"
},
{
"created": "Mon, 8 Aug 2022 16:18:16 GMT",
"version": "v2"
}
] | 2022-08-09 | [
[
"Lulli",
"Matteo",
""
],
[
"Marciano",
"Antonino",
""
],
[
"Shan",
"Xiaowen",
""
]
] | We follow a new pathway to the definition of the Stochastic Quantization (SQ), first proposed by Parisi and Wu, of the action functional yielding the Einstein equations. Hinging on the functional similarities between the Ricci-Flow equation and the SQ Langevin equations proposed by Rumpf, we push forward a novel approa... |
2104.07931 | Shahab Shahidi | Shahab Shahidi | Non-minimal Energy-momentum squared gravity | 10 pages, 7 figures | Eur.Phys.J.C 81 (2021) 274 | 10.1140/epjc/s10052-021-09082-z | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | We consider a gravitational theory with an additional non-minimal coupling
between baryonic matter fields and geometry. The coupling is second order in
the energy momentum tensor and can be seen as a generalization of the
energy-momentum squared gravity model. We will add a constraint through a
Lagrange multiplier to... | [
{
"created": "Fri, 16 Apr 2021 07:28:51 GMT",
"version": "v1"
}
] | 2021-04-19 | [
[
"Shahidi",
"Shahab",
""
]
] | We consider a gravitational theory with an additional non-minimal coupling between baryonic matter fields and geometry. The coupling is second order in the energy momentum tensor and can be seen as a generalization of the energy-momentum squared gravity model. We will add a constraint through a Lagrange multiplier to e... |
0709.0697 | H Mohseni Sadjadi | H. Mohseni Sadjadi | A Note on Gravitational Baryogenesis | 10 pages, accepted for publication in Physical Review D | Phys.Rev.D76:123507,2007 | 10.1103/PhysRevD.76.123507 | null | gr-qc hep-th | null | The coupling between Ricci scalar curvature and the baryon number current
dynamically breaks CPT in an expanding universe and leads to baryon asymmetry.
We study the effect of time dependence of equation of state parameter of the
FRW universe on this asymmetry.
| [
{
"created": "Wed, 5 Sep 2007 16:25:26 GMT",
"version": "v1"
},
{
"created": "Sat, 10 Nov 2007 07:00:45 GMT",
"version": "v2"
}
] | 2008-11-26 | [
[
"Sadjadi",
"H. Mohseni",
""
]
] | The coupling between Ricci scalar curvature and the baryon number current dynamically breaks CPT in an expanding universe and leads to baryon asymmetry. We study the effect of time dependence of equation of state parameter of the FRW universe on this asymmetry. |
2407.05500 | Aliasghar Parvizi A. Parvizi | Aliasghar Parvizi, Tomasz Paw{\l}owski | Revisiting light propagation over (loop) quantum Universe | RevTex, 12 pages, 5 figures | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | One of the principal aspects through which the effects of quantum gravity are
hoped to manifest is the possible modification of the dispersion relation for
electromagnetic (e-m) waves. By combining (i) the symmetry reduced approaches
to spacetime quantization, including loop quantum cosmology or geometrodynamics
fram... | [
{
"created": "Sun, 7 Jul 2024 21:19:59 GMT",
"version": "v1"
}
] | 2024-07-09 | [
[
"Parvizi",
"Aliasghar",
""
],
[
"Pawłowski",
"Tomasz",
""
]
] | One of the principal aspects through which the effects of quantum gravity are hoped to manifest is the possible modification of the dispersion relation for electromagnetic (e-m) waves. By combining (i) the symmetry reduced approaches to spacetime quantization, including loop quantum cosmology or geometrodynamics framew... |
2109.10017 | Ram Brustein | Ram Brustein, A.J.M. Medved, Tamar Simhon | Black holes as frozen stars | null | null | 10.1103/PhysRevD.105.024019 | null | gr-qc hep-th | http://creativecommons.org/licenses/by/4.0/ | We have recently proposed a model for a regular black hole, or an
ultra-compact object, that is premised on having maximally negative radial
pressure throughout the entirety of the object's interior. This model can be
viewed as that of a highly entropic configuration of fundamental, closed
strings near the Hagedorn t... | [
{
"created": "Tue, 21 Sep 2021 08:07:59 GMT",
"version": "v1"
}
] | 2022-01-19 | [
[
"Brustein",
"Ram",
""
],
[
"Medved",
"A. J. M.",
""
],
[
"Simhon",
"Tamar",
""
]
] | We have recently proposed a model for a regular black hole, or an ultra-compact object, that is premised on having maximally negative radial pressure throughout the entirety of the object's interior. This model can be viewed as that of a highly entropic configuration of fundamental, closed strings near the Hagedorn tem... |
2211.17248 | Mary Letey | Mary I. Letey, Zakhar Shumaylov, Fruzsina J. Agocs, Will J. Handley,
Michael P. Hobson, Anthony N. Lasenby | Quantum initial conditions for curved inflating universes | 15 pages, 3 figures; v3: As published in PRD | Phys. Rev. D 109, 123502 (2024) | 10.1103/PhysRevD.109.123502 | null | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We discuss the challenges of motivating, constructing, and quantizing a
canonically normalized inflationary perturbation in spatially curved universes.
We show that this has historically proved challenging due to the interaction of
nonadiabaticity with spatial curvature. We construct a novel curvature
perturbation th... | [
{
"created": "Wed, 30 Nov 2022 18:48:07 GMT",
"version": "v1"
},
{
"created": "Sun, 7 May 2023 18:46:23 GMT",
"version": "v2"
},
{
"created": "Mon, 8 Jul 2024 19:15:22 GMT",
"version": "v3"
}
] | 2024-07-10 | [
[
"Letey",
"Mary I.",
""
],
[
"Shumaylov",
"Zakhar",
""
],
[
"Agocs",
"Fruzsina J.",
""
],
[
"Handley",
"Will J.",
""
],
[
"Hobson",
"Michael P.",
""
],
[
"Lasenby",
"Anthony N.",
""
]
] | We discuss the challenges of motivating, constructing, and quantizing a canonically normalized inflationary perturbation in spatially curved universes. We show that this has historically proved challenging due to the interaction of nonadiabaticity with spatial curvature. We construct a novel curvature perturbation that... |
2104.14158 | Sen Guo | Sen Guo and En-Wei Liang | Ehrenfest's scheme and microstructure for regular-AdS black hole in the
extended phase space | 14 pages, 5 figures | published in Classical and Quantum Gravity Vol:38; 125001 (2021) | 10.1088/1361-6382/abf9b6 | null | gr-qc | http://creativecommons.org/licenses/by-nc-nd/4.0/ | The regular (Bardeen)-AdS (BAdS) black hole (BH) in the extended phase space
is taken as an example for investigating the BH phase transition grade from
both macroscopic and microscopic points of view. The equation of state and
thermodynamic quantities of this BH are obtained. It is found that the BAdS BH
phase space... | [
{
"created": "Thu, 29 Apr 2021 07:36:28 GMT",
"version": "v1"
},
{
"created": "Sun, 15 May 2022 09:39:57 GMT",
"version": "v2"
}
] | 2022-05-17 | [
[
"Guo",
"Sen",
""
],
[
"Liang",
"En-Wei",
""
]
] | The regular (Bardeen)-AdS (BAdS) black hole (BH) in the extended phase space is taken as an example for investigating the BH phase transition grade from both macroscopic and microscopic points of view. The equation of state and thermodynamic quantities of this BH are obtained. It is found that the BAdS BH phase space i... |
gr-qc/0502118 | J. E. Horvath | P. S. Cust\'odio and J.E.Horvath | Cosmological quintessence accretion onto primordial black holes :
conditions for their growth to the supermassive scale | 21 pp., 2 Figures, To appear in IJMPD | Int.J.Mod.Phys. D14 (2005) 257-274 | 10.1142/S0218271805006043 | null | gr-qc | null | In this work we revisit the growth of small primordial black holes (PBHs)
immersed in a quintessential field and/or radiation to the supermassive black
hole (SMBHs) scale. We show the difficulties of scenarios in which such huge
growth is possible. For that purpose we evaluated analytical solutions of the
differentia... | [
{
"created": "Mon, 28 Feb 2005 12:53:22 GMT",
"version": "v1"
}
] | 2009-11-11 | [
[
"Custódio",
"P. S.",
""
],
[
"Horvath",
"J. E.",
""
]
] | In this work we revisit the growth of small primordial black holes (PBHs) immersed in a quintessential field and/or radiation to the supermassive black hole (SMBHs) scale. We show the difficulties of scenarios in which such huge growth is possible. For that purpose we evaluated analytical solutions of the differential ... |
2404.03815 | James T. Wheeler | James T. Wheeler | Geometry from geodesics: fine-tuning Ehlers, Pirani, and Schild | 24 pages plus references | null | null | null | gr-qc hep-th | http://creativecommons.org/licenses/by-sa/4.0/ | Ehlers, Pirani, and Schild argued that measurements of timelike and null
geodesics yield projective and Weyl connections, respectively, with
compatibility giving an integrable Weyl geometry. We find greater freedom for
both connections, including either a 1-parameter class of projective
connections, or a conformal co... | [
{
"created": "Thu, 4 Apr 2024 21:44:35 GMT",
"version": "v1"
}
] | 2024-04-08 | [
[
"Wheeler",
"James T.",
""
]
] | Ehlers, Pirani, and Schild argued that measurements of timelike and null geodesics yield projective and Weyl connections, respectively, with compatibility giving an integrable Weyl geometry. We find greater freedom for both connections, including either a 1-parameter class of projective connections, or a conformal conn... |
gr-qc/0203023 | Yasusada Nambu | Yasusada Nambu | The back reaction and the effective Einstein's equation for the Universe
with ideal fluid cosmological perturbations | 16 pages, to appear in Phys. Rev. D | Phys.Rev. D65 (2002) 104013 | 10.1103/PhysRevD.65.104013 | null | gr-qc | null | We investigate the back reaction of cosmological perturbations on the
evolution of the Universe using the renormalization group method. Starting from
the second order perturbed Einstein's equation, we renormalize a scale factor
of the Universe and derive the evolution equation for the effective scale
factor which inc... | [
{
"created": "Thu, 7 Mar 2002 04:17:01 GMT",
"version": "v1"
}
] | 2009-11-07 | [
[
"Nambu",
"Yasusada",
""
]
] | We investigate the back reaction of cosmological perturbations on the evolution of the Universe using the renormalization group method. Starting from the second order perturbed Einstein's equation, we renormalize a scale factor of the Universe and derive the evolution equation for the effective scale factor which inclu... |
gr-qc/0405117 | Ghazal Geshnizjani | Ghazal Geshnizjani, Niayesh Afshordi | Coarse-Grained Back Reaction in Single Scalar Field Driven Inflation | 6 pages, 1 figure | JCAP 0501 (2005) 011 | 10.1088/1475-7516/2005/01/011 | null | gr-qc astro-ph hep-ph hep-th | null | We introduce a self-consistent stochastic coarse-graining method, which
includes both metric and scalar field fluctuations, to investigate the back
reaction of long wavelength perturbations in single-scalar driven inflation, up
to the second (one loop) order. We demonstrate that, although back reaction
cannot be sign... | [
{
"created": "Fri, 21 May 2004 20:12:14 GMT",
"version": "v1"
}
] | 2009-08-29 | [
[
"Geshnizjani",
"Ghazal",
""
],
[
"Afshordi",
"Niayesh",
""
]
] | We introduce a self-consistent stochastic coarse-graining method, which includes both metric and scalar field fluctuations, to investigate the back reaction of long wavelength perturbations in single-scalar driven inflation, up to the second (one loop) order. We demonstrate that, although back reaction cannot be signif... |
1701.04136 | Magd Elias Kahil | Magd E. Kahil | Spinning and Spinning Deviation Equations for Special Types of Gauge
Theories of Gravity | 15 pages, LaTeX file | null | 10.1134/S0202289318010103 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The problem of spinning and spin deviation equations for particles as defined
by their microscopic effect has led many authors to revisit non-Riemannian
geometry for being described torsion and its relation with the spin of
elementary particles. We obtain a new method to detect the existence of torsion
by deriving th... | [
{
"created": "Mon, 16 Jan 2017 01:41:53 GMT",
"version": "v1"
}
] | 2018-04-04 | [
[
"Kahil",
"Magd E.",
""
]
] | The problem of spinning and spin deviation equations for particles as defined by their microscopic effect has led many authors to revisit non-Riemannian geometry for being described torsion and its relation with the spin of elementary particles. We obtain a new method to detect the existence of torsion by deriving the ... |
gr-qc/0301067 | Jian Qi Shen | Jian Qi Shen | Gravitational Analogues, Geometric Effects and Gravitomagnetic Charge | 9 pages,0 figures, Latex | Gen.Rel.Grav. 34 (2002) 1423-1435 | 10.1023/A:1020082903104 | null | gr-qc | null | This essay discusses some geometric effects associated with gravitomagnetic
fields and gravitomagnetic charge as well as the gravity theory of the latter.
Gravitomagnetic charge is the duality of gravitoelectric charge (mass) and is
therefore also termed the dual mass which represents the topological property
of grav... | [
{
"created": "Mon, 20 Jan 2003 06:00:04 GMT",
"version": "v1"
},
{
"created": "Sat, 15 Feb 2003 08:05:08 GMT",
"version": "v2"
}
] | 2017-08-30 | [
[
"Shen",
"Jian Qi",
""
]
] | This essay discusses some geometric effects associated with gravitomagnetic fields and gravitomagnetic charge as well as the gravity theory of the latter. Gravitomagnetic charge is the duality of gravitoelectric charge (mass) and is therefore also termed the dual mass which represents the topological property of gravit... |
1211.5176 | Daniel Mart\'in-de Blas | Laura Castell\'o Gomar, Jer\'onimo Cortez, Daniel Mart\'in-de Blas,
Guillermo A. Mena Marug\'an and Jos\'e M. Velhinho | Uniqueness of the Fock quantization of scalar fields in spatially flat
cosmological spacetimes | 15 pages, version accepted for publication in JCAP | JCAP 1211:001, 2012 | 10.1088/1475-7516/2012/11/001 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the Fock quantization of scalar fields in (generically) time
dependent scenarios, focusing on the case in which the field propagation occurs
in --either a background or effective-- spacetime with spatial sections of flat
compact topology. The discussion finds important applications in cosmology,
like e.g. in... | [
{
"created": "Thu, 22 Nov 2012 00:09:55 GMT",
"version": "v1"
}
] | 2012-11-26 | [
[
"Gomar",
"Laura Castelló",
""
],
[
"Cortez",
"Jerónimo",
""
],
[
"Blas",
"Daniel Martín-de",
""
],
[
"Marugán",
"Guillermo A. Mena",
""
],
[
"Velhinho",
"José M.",
""
]
] | We study the Fock quantization of scalar fields in (generically) time dependent scenarios, focusing on the case in which the field propagation occurs in --either a background or effective-- spacetime with spatial sections of flat compact topology. The discussion finds important applications in cosmology, like e.g. in t... |
gr-qc/0312081 | Robert Oeckl | Robert Oeckl (CPT) | The general boundary approach to quantum gravity | 9 pages, LaTeX + AMS + XYpic, contribution to proceedings of ICP2004,
Tehran, Iran, January 2004 | Proceedings of the First International Conference on Physics
(ICP), Amirkabir University, Tehran, 2004, pp. 257-265 | null | CPT-2003/C.4619 | gr-qc hep-th | null | We present an approach to quantum gravity based on the general boundary
formulation of quantum mechanics, path integral quantization, spin foam models
and renormalization.
| [
{
"created": "Wed, 17 Dec 2003 18:59:16 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Oeckl",
"Robert",
"",
"CPT"
]
] | We present an approach to quantum gravity based on the general boundary formulation of quantum mechanics, path integral quantization, spin foam models and renormalization. |
gr-qc/9411032 | null | Norman Cruz and Jorge Zanelli | Stellar Equilibrium in 2+1 Dimensions | 11 pages, revtex, no figures | Class.Quant.Grav.12:975-982,1995 | 10.1088/0264-9381/12/4/008 | CECS/USACH-94/2 | gr-qc | null | The hydrostatic equilibrium of a $2+1$ dimensional perfect fluid star in
asymptotically anti-de Sitter space is discussed. The interior geometry matches
the exterior $2+1$ black-hole solution. An upper mass limit is found, analogous
to Buchdahl's theorem in 3+1, and the possibility of collapse is discussed. The
case ... | [
{
"created": "Sat, 12 Nov 1994 23:19:17 GMT",
"version": "v1"
}
] | 2010-04-06 | [
[
"Cruz",
"Norman",
""
],
[
"Zanelli",
"Jorge",
""
]
] | The hydrostatic equilibrium of a $2+1$ dimensional perfect fluid star in asymptotically anti-de Sitter space is discussed. The interior geometry matches the exterior $2+1$ black-hole solution. An upper mass limit is found, analogous to Buchdahl's theorem in 3+1, and the possibility of collapse is discussed. The case of... |
gr-qc/0506054 | Ding-Fang Zeng | Ding-fang Zeng and Yi-hong Gao | A Question About Standard Cosmology and Extremely Dense Stars'
Collapsing | 4 and half pages, 1 figures, two column styles | null | null | null | gr-qc | null | We ask if the conventional variable separation techniques in the studying of
standard cosmology and the collapsing of extremely dense stars introduce
Newton's absolute space-time concepts. If this is the case, then a completely
relative cosmology is needed. We build the basic frame-works for such a
cosmology and illu... | [
{
"created": "Thu, 9 Jun 2005 09:59:45 GMT",
"version": "v1"
}
] | 2016-08-31 | [
[
"Zeng",
"Ding-fang",
""
],
[
"Gao",
"Yi-hong",
""
]
] | We ask if the conventional variable separation techniques in the studying of standard cosmology and the collapsing of extremely dense stars introduce Newton's absolute space-time concepts. If this is the case, then a completely relative cosmology is needed. We build the basic frame-works for such a cosmology and illust... |
2212.12466 | Behzad Tajahmad | Behzad Tajahmad | Formulating the fluctuations of space-time and a justification for
applying fractional gravity | null | null | null | null | gr-qc math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | It is well known that in quantum gravity, the very geometry of space and time
is subject to continual fluctuation. The mathematical formulation for this old
theory is still lacking. This article formulates this more than forty-year-old
theory of quantum gravity. On the other hand, recent attention has been paid to
fr... | [
{
"created": "Fri, 23 Dec 2022 16:52:18 GMT",
"version": "v1"
},
{
"created": "Thu, 12 Oct 2023 11:43:30 GMT",
"version": "v2"
},
{
"created": "Sat, 2 Dec 2023 15:56:06 GMT",
"version": "v3"
}
] | 2023-12-05 | [
[
"Tajahmad",
"Behzad",
""
]
] | It is well known that in quantum gravity, the very geometry of space and time is subject to continual fluctuation. The mathematical formulation for this old theory is still lacking. This article formulates this more than forty-year-old theory of quantum gravity. On the other hand, recent attention has been paid to frac... |
1301.1159 | Anton Galajinsky | Anton Galajinsky | Near horizon geometry of extremal black holes and Banados-Silk-West
effect | V5:10 pages, major revision, title changed; the version published in
PRD | Phys.Rev. D88 (2013) 027505 | 10.1103/PhysRevD.88.027505 | LMP-TPU-01/13 | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Recently, Banados, Silk and West analyzed a collision of two particles near
the horizon of the extremal Kerr black hole and demonstrated that the energy in
the center-of-mass frame can be arbitrarily large provided the angular momentum
of one of the colliding particles takes a special value. As is known, the
vicinity... | [
{
"created": "Mon, 7 Jan 2013 11:44:11 GMT",
"version": "v1"
},
{
"created": "Mon, 14 Jan 2013 08:20:25 GMT",
"version": "v2"
},
{
"created": "Tue, 15 Jan 2013 08:53:57 GMT",
"version": "v3"
},
{
"created": "Wed, 20 Feb 2013 11:31:17 GMT",
"version": "v4"
},
{
"cr... | 2013-07-30 | [
[
"Galajinsky",
"Anton",
""
]
] | Recently, Banados, Silk and West analyzed a collision of two particles near the horizon of the extremal Kerr black hole and demonstrated that the energy in the center-of-mass frame can be arbitrarily large provided the angular momentum of one of the colliding particles takes a special value. As is known, the vicinity o... |
2404.07055 | Che-Yu Chen | Che-Yu Chen, Hung-Yi Pu | Observational features of reflection asymmetric black holes | 14 pages, 7 figures | null | null | RIKEN-iTHEMS-Report-24 | gr-qc astro-ph.HE hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The Kerr spacetime is symmetric with respect to a well-defined equatorial
plane. When testing the equatorial reflection symmetry of an isolated black
hole, one is at the same time testing the Kerr hypothesis in General
Relativity. In this work, we investigate the possible observational features
when a Keplerian disk ... | [
{
"created": "Wed, 10 Apr 2024 14:45:21 GMT",
"version": "v1"
}
] | 2024-04-11 | [
[
"Chen",
"Che-Yu",
""
],
[
"Pu",
"Hung-Yi",
""
]
] | The Kerr spacetime is symmetric with respect to a well-defined equatorial plane. When testing the equatorial reflection symmetry of an isolated black hole, one is at the same time testing the Kerr hypothesis in General Relativity. In this work, we investigate the possible observational features when a Keplerian disk is... |
1204.1546 | Chih-Hung Wang | Yu-Huei Wu, Chih-Hung Wang | Local and global structure of domain wall space-times | 9 pages, no figure | null | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present a general proof on the equivalence of the comoving-coordinate
approach, where the wall is fixed at a constant coordinate variable, and
moving-wall approach, where the wall is moving in a background static
space-time, in the domain wall space-times without reflection symmetry. We
further provide a general p... | [
{
"created": "Fri, 6 Apr 2012 19:47:35 GMT",
"version": "v1"
}
] | 2012-04-09 | [
[
"Wu",
"Yu-Huei",
""
],
[
"Wang",
"Chih-Hung",
""
]
] | We present a general proof on the equivalence of the comoving-coordinate approach, where the wall is fixed at a constant coordinate variable, and moving-wall approach, where the wall is moving in a background static space-time, in the domain wall space-times without reflection symmetry. We further provide a general pro... |
2103.15832 | Paulo Luz | Jos\'e P. S. Lemos and Paulo Luz | All fundamental electrically charged thin shells in general relativity:
From star shells to tension shell black holes and regular black holes and
beyond | 56 pages including 31 figures, plus 2 appendices including 2 figures,
plus references; all together 67 pages and 33 figures | Phys. Rev. D 103, 104046 (2021) | 10.1103/PhysRevD.103.104046 | null | gr-qc hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We classify all fundamental electrically charged thin shells in general
relativity, i.e., static spherically symmetric perfect fluid thin shells with a
Minkowski spacetime interior and a Reissner-Nordstr\"om spacetime exterior,
characterized by the spacetime mass and electric charge. The fundamental shell
can exist i... | [
{
"created": "Mon, 29 Mar 2021 18:00:01 GMT",
"version": "v1"
}
] | 2021-05-26 | [
[
"Lemos",
"José P. S.",
""
],
[
"Luz",
"Paulo",
""
]
] | We classify all fundamental electrically charged thin shells in general relativity, i.e., static spherically symmetric perfect fluid thin shells with a Minkowski spacetime interior and a Reissner-Nordstr\"om spacetime exterior, characterized by the spacetime mass and electric charge. The fundamental shell can exist in ... |
2007.05875 | John Klauder | John R. Klauder | An Ultralocal Classical and Quantum Gravity Theory | 8 pages; an ultralocal gravity is quantized proving that full gravity
can be affine quantized: a minor equation or two errors fixed | null | null | null | gr-qc hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | An ultralocal form of any classical field theory eliminates all spatial
derivatives in its action functional, e.g., in its Hamiltonian functional
density. It has been applied to covariant scalar field theories and even to
Einstein's general relativity, by Pilati, as an initial term in a perturbation
series that aimed... | [
{
"created": "Sat, 11 Jul 2020 23:54:32 GMT",
"version": "v1"
},
{
"created": "Thu, 27 Aug 2020 02:26:26 GMT",
"version": "v2"
},
{
"created": "Wed, 2 Sep 2020 18:35:05 GMT",
"version": "v3"
}
] | 2020-09-04 | [
[
"Klauder",
"John R.",
""
]
] | An ultralocal form of any classical field theory eliminates all spatial derivatives in its action functional, e.g., in its Hamiltonian functional density. It has been applied to covariant scalar field theories and even to Einstein's general relativity, by Pilati, as an initial term in a perturbation series that aimed t... |
1212.3947 | Daniel Mart\'in-de Blas | Jer\'onimo Cortez, Luc\'ia Fonseca, Daniel Mart\'in-de Blas and
Guillermo A. Mena Marug\'an | Uniqueness of the Fock quantization of scalar fields under mode
preserving canonical transformations varying in time | 12 pages, submitted to Phys. Rev. D | Phys.Rev.D87:044013,2013 | 10.1103/PhysRevD.87.044013 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the Fock quantization of scalar fields of Klein-Gordon type in
nonstationary scenarios propagating in spacetimes with compact spatial
sections, allowing for different field descriptions that are related by means
of certain nonlocal linear canonical transformations that depend on time. More
specifically, we c... | [
{
"created": "Mon, 17 Dec 2012 09:58:18 GMT",
"version": "v1"
}
] | 2013-02-06 | [
[
"Cortez",
"Jerónimo",
""
],
[
"Fonseca",
"Lucía",
""
],
[
"Blas",
"Daniel Martín-de",
""
],
[
"Marugán",
"Guillermo A. Mena",
""
]
] | We study the Fock quantization of scalar fields of Klein-Gordon type in nonstationary scenarios propagating in spacetimes with compact spatial sections, allowing for different field descriptions that are related by means of certain nonlocal linear canonical transformations that depend on time. More specifically, we con... |
2303.13164 | Riasat Ali | Muhammad Asgher, Anosha Karamat, Rimsha Babar and Riasat Ali | Tunneling and entropy analysis of parameterized black hole with rotating
case | 13 Pages, 8 figures, Published in Physica Scripta | Phys. Scr. 98 (2023) 045023 | 10.1088/1402-4896/acc3c7 | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | In this work, we study the parameterized black hole solution by applying the
Newman-Janis approach and also examine the Hawking temperature. We consider a
Lagrangian field equation associated with the generalized uncertainty principle
to study the motion of boson particles. By using semi-classical phenomenon, we
anal... | [
{
"created": "Thu, 23 Mar 2023 10:30:16 GMT",
"version": "v1"
}
] | 2023-03-24 | [
[
"Asgher",
"Muhammad",
""
],
[
"Karamat",
"Anosha",
""
],
[
"Babar",
"Rimsha",
""
],
[
"Ali",
"Riasat",
""
]
] | In this work, we study the parameterized black hole solution by applying the Newman-Janis approach and also examine the Hawking temperature. We consider a Lagrangian field equation associated with the generalized uncertainty principle to study the motion of boson particles. By using semi-classical phenomenon, we analyz... |
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