Results 11 to 20 of about 108,791 (169)

Colliding branes and formation of spacetime singularities [PDF]

Physics Letters B, 2008
four ...
Tziolas, Andreas, Wang, Anzhong
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Exploration of a singular fluid spacetime [PDF]

General Relativity and Gravitation, 2021
AbstractWe investigate the properties of a special class of singular solutions for a self-gravitating perfect fluid in general relativity: the singular isothermal sphere. For arbitrary constant equation-of-state parameter $$w=p/\rho $$ w = p /
openaire   +4 more sources

QUANTUM SINGULARITIES IN STATIC SPACETIMES [PDF]

International Journal of Modern Physics D, 2011
We review the mathematical framework necessary to understand the physical content of quantum singularities in static spacetimes. We present many examples of classical singular spacetimes and study their singularities by using wave packets satisfying Klein–Gordon and Dirac equations.
Pitelli, João Paulo M., Letelier, Patricio S.   +1 more
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Dynamic generation or removal of a scalar hair

Journal of High Energy Physics, 2023
We study dynamic processes through which the scalar hair of black holes is generated or detached in a theory with a scalar field non-minimally coupled to Gauss-Bonnet and Ricci scalar invariants.
Yunqi Liu, Cheng-Yong Zhang, Wei-Liang Qian, Kai Lin, Bin Wang   +4 more
doaj   +1 more source

Regular black holes without mass inflation instability

Journal of High Energy Physics, 2022
Generic models of regular black holes have separate outer and inner horizons, both with nonzero surface gravity. It has been shown that a nonzero inner horizon surface gravity results in exponential instability at the inner horizon controlled by this ...
Raúl Carballo-Rubio, Francesco Di Filippo, Stefano Liberati, Costantino Pacilio, Matt Visser   +4 more
doaj   +1 more source

Revisiting the second law and weak cosmic censorship conjecture in high-dimensional charged-AdS black hole: an additional assumption

Journal of High Energy Physics, 2023
The verification of the second law of black hole mechanics and the WCCC in the context of enthalpy as mass of the black hole and its related thermodynamic properties has not been tested through a vast number of literature in the recent past. Such studies
Md Sabir Ali, Hasan El Moumni, Jamal Khalloufi, Karima Masmar   +3 more
doaj   +1 more source

Analytic and asymptotically flat hairy (ultra-compact) black-hole solutions and their axial perturbations

Journal of High Energy Physics, 2022
In this work, we consider a very simple gravitational theory that contains a scalar field with its kinetic and potential terms minimally coupled to gravity, while the scalar field is assumed to have a coulombic form.
Athanasios Bakopoulos, Theodoros Nakas
doaj   +1 more source

Quantum probes of spacetime singularities [PDF]

Physical Review D, 1995
12 pages, RevTeX, no figures, A few breif comments added and typos ...
Horowitz, Gary T., Marolf, Donald
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Strong cosmic censorship conjecture for a charged BTZ black hole

Journal of High Energy Physics, 2022
The strong cosmic censorship conjecture, whose validation asserts the deterministic nature of general relativity, has been studied for charged BTZ black holes in three dimensional general relativity, as well as for Nth order pure Lovelock gravity in d=2N+
Chiranjeeb Singha, Sumanta Chakraborty, Naresh Dadhich   +2 more
doaj   +1 more source

COSMOLOGICAL SINGULARITIES IN FLRW SPACETIMES [PDF]

The Twelfth Marcel Grossmann Meeting, 2012
3 pages, ws-procs975x65.cls to appear in Proceedings of 12th Marcel Grossmann Meeting ...
Fernández Jambrina, Leonardo, Lazkoz, Ruth   +1 more
openaire   +3 more sources