Dynamical evolution of scalar field thin-shell for rotating regular black holes
Sign Up to like & getrecommendations! Published in 2019 at "Annals of Physics"
DOI: 10.1016/j.aop.2019.04.013
Abstract: Abstract This work deals with the dynamical behavior of thin-shell for a class of rotating regular black holes by using Israel’s thin-shell formalism. We consider the matter distribution located at thin-shell associated with a scalar… read more here.
Keywords: black holes; rotating regular; regular black; shell ... See more keywords
Regular black holes with exotic topologies
Sign Up to like & getrecommendations! Published in 2020 at "Physics of the Dark Universe"
DOI: 10.1016/j.dark.2020.100709
Abstract: Abstract In this work we show that spherically symmetric regular black holes with topologies other than S 3 de Sitter cores cannot be excluded from Borde’s theorem. In particular, we prove that spacetime connectivity leads… read more here.
Keywords: regular black; black holes; exotic topologies; holes exotic ... See more keywords
Quasinormal modes and phase transitions of regular black holes
Sign Up to like & getrecommendations! Published in 2021 at "Nuclear Physics B"
DOI: 10.1016/j.nuclphysb.2021.115539
Abstract: By generalizing the dimensionless skill, we investigate the quasinormal modes and thermodynamics analytically for three types of regular black holes. The deviations of the first law and Bekenstein bound are shown. Meanwhile, we verify that… read more here.
Keywords: quasinormal modes; regular black; black holes; thermodynamics ... See more keywords
Superradiance of massive scalar particles around rotating regular black holes
Sign Up to like & getrecommendations! Published in 2022 at "Chinese Physics C"
DOI: 10.1088/1674-1137/accdc7
Abstract: Regular black holes, as an important attempt to eliminate the singularities in general relativity, have been widely concerned. Due to the fact that the superradiance associated with rotating regular black holes plays an indispensable role… read more here.
Keywords: regular black; energy extraction; instability; superradiance ... See more keywords
Absorption cross section of regular black holes in scalar-tensor conformal gravity
Sign Up to like & getrecommendations! Published in 2022 at "Physical Review D"
DOI: 10.1103/physrevd.105.044031
Abstract: In terms of the complex angular momentum method, we compute the absorption cross section by analyzing a massless test scalar field around conformally related black holes. At first, we investigate circular null geodesics and thereby… read more here.
Keywords: black holes; regular black; absorption cross; absorption ... See more keywords
Quasinormal modes of renormalization group improved Dymnikova regular black holes
Sign Up to like & getrecommendations! Published in 2023 at "Physical Review D"
DOI: 10.1103/physrevd.107.104050
Abstract: We find accurate quasinormal frequencies of a quantum corrected black hole constructed in the renormalization group theory via the coordinate-independent iterative procedure, leading to the Dymnikova regular black hole. We show that while the fundamental… read more here.
Keywords: regular black; renormalization group; dymnikova regular; black hole ... See more keywords
Violations of the null convergence condition in kinematical transitions between singular and regular black holes, horizonless compact objects, and bounces
Sign Up to like & getrecommendations! Published in 2025 at "Physical Review D"
DOI: 10.1103/physrevd.111.104054
Abstract: How do regular black holes evade the Penrose singularity theorem? Various models of stationary regular black holes globally satisfy the null convergence condition (NCC). At first glance this might seem puzzling, as the NCC must… read more here.
Keywords: horizonless compact; regular black; penrose singularity; singularity theorem ... See more keywords
Generic rotating regular black holes in general relativity coupled to nonlinear electrodynamics
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review D"
DOI: 10.1103/physrevd.95.084037
Abstract: We construct regular rotating black hole and no-horizon spacetimes based on the recently introduced spherically symmetric generic regular black hole spacetimes related to electric or magnetic charge under nonlinear electrodynamics coupled to general relativity that… read more here.
Keywords: regular black; black holes; black hole; electrodynamics ... See more keywords
Weak field deflection angle by regular black holes with cosmic strings using the Gauss-Bonnet theorem
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review D"
DOI: 10.1103/physrevd.99.104075
Abstract: In this paper, we investigate light bending in the spacetime of regular black holes with cosmic strings in weak field limits. To do so, we apply the Gauss-Bonnet theorem to the optical geometry of the… read more here.
Keywords: deflection; field; black holes; regular black ... See more keywords
Importance of being nonminimally coupled: Scalar Hawking radiation from regular black holes
Sign Up to like & getrecommendations! Published in 2025 at "Physical Review D"
DOI: 10.1103/s4cf-bclq
Abstract: In curved space-time, a scalar field $\phi$ is generically expected to couple to curvature, via a coupling of the form $\xi\phi^2R$. Yet in the study of Hawking emission from regular black holes (RBHs), where scalar… read more here.
Keywords: non minimal; regular black; scalar hawking; importance nonminimally ... See more keywords
Entropy bound of horizons of some regular black holes
Sign Up to like & getrecommendations! Published in 2020 at "Modern Physics Letters A"
DOI: 10.1142/s0217732320500704
Abstract: We study the four-dimensional (i) modified Bardeen black hole, (ii) modified Hayward black hole, (iii) charged regular black hole and (iv) magnetically charged regular black hole. For modified Bard... read more here.
Keywords: regular black; black hole; horizons regular; bound horizons ... See more keywords