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相关论文: Pure Lovelock Gravity regular black holes

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Using a quantum tunneling derivation, we show the resilience of Hawking radiation in Lorentz violating gravity. In particular, we show that the standard derivation of the Hawking effect in relativistic quantum field theory can be extended…

广义相对论与量子宇宙学 · 物理学 2025-04-23 M. Schneider , F. Del Porro , M. Herrero-Valea , S. Liberati

In four-dimensional vacuum general relativity the only known static, exact and analytical black hole solution is given by the Schwarzschild spacetime. In this paper this renowned metric is generalised by adding another integrating constant,…

广义相对论与量子宇宙学 · 物理学 2026-01-26 Marco Astorino

We present exact spherical black hole solutions in de Rham, Gabadadze and Tolley (dRGT) massive gravity for a generic choice of the parameters in the theory, and also discuss the thermodynamical and phase structure of the black hole in both…

广义相对论与量子宇宙学 · 物理学 2016-03-16 Sushant G. Ghosh , Lunchakorn Tannukij , Pitayuth Wongjun

Do observations of black hole candidates rule out alternative theories of gravity without horizon formation? This depends on the existence, viability and reasonableness of alternative theories of gravity without black holes. Here a theory…

综合物理 · 物理学 2012-11-01 I. Schmelzer

We establish that regular black holes can form from gravitational collapse. Our model builds on a recent construction that realized regular black holes as exact solutions to purely gravitational theories that incorporate an infinite tower…

广义相对论与量子宇宙学 · 物理学 2024-12-30 Pablo Bueno , Pablo A. Cano , Robie A. Hennigar , Ángel J. Murcia

A reformulation of the calculation of the semi-classical energy-momentum tensor on a Schwarzschild background, the Bousso covariant entropy bound, and the ER=EPR conjecture of Maldacena and Susskind taken together suggest a scenario for the…

广义相对论与量子宇宙学 · 物理学 2014-06-17 James M. Bardeen

We solve the Klein-Gordon equation for a scalar field, in the background geometry of a dust cloud collapsing to form a black hole, everywhere in the (1+1) spacetime: that is, both inside and outside the event horizon and arbitrarily close…

广义相对论与量子宇宙学 · 物理学 2015-07-07 Sumanta Chakraborty , Suprit Singh , T. Padmanabhan

The theory of massive gravity in three dimensions recently proposed by Bergshoeff, Hohm and Townsend (BHT) is considered. At the special case when the theory admits a unique maximally symmetric solution, a conformally flat space that…

高能物理 - 理论 · 物理学 2009-07-28 Julio Oliva , David Tempo , Ricardo Troncoso

We find an exact spherically symmetric regular Bardeen-like solutions by considering the coupling between Einstein-Gauss-Bonnet theory and nonlinear electrodynamics (NED) in five-dimensional spacetime. These solutions, with an additional…

广义相对论与量子宇宙学 · 物理学 2019-11-26 Dharm Veer Singh , Sushant G. Ghosh , Sunil D. Maharaj

Massive gravities in anti-de Sitter spacetime can be viewed as effective dual field theories of different phases of condensed matter systems with broken translational symmetry such as solids, (perfect) fluids, and liquid crystals. Motivated…

高能物理 - 理论 · 物理学 2020-09-18 A. Dehghani , S. H. Hendi , R. B. Mann

We derive a class of regular black holes from the proper-time renormalization group approach to asymptotically safe gravity. A central challenge is the robustness of physical predictions to the regularization scheme. We address this by…

广义相对论与量子宇宙学 · 物理学 2025-12-22 Alfio Bonanno , Roman A. Konoplya , Giovanni Oglialoro , Andrea Spina

In this study, we investigate a static, spherically symmetric black hole (BH) within the framework of Loop Quantum Gravity (LQG) surrounded by quintessence field. Our comprehensive analysis shows that the interplay between quantum…

广义相对论与量子宇宙学 · 物理学 2025-05-20 Ahmad Al-Badawi , Faizuddin Ahmed , İzzet Sakallı

We present a new explicit class of black holes in general quadratic gravity with a cosmological constant. These spherically symmetric Schwarzschild-Bach-(anti-)de Sitter geometries (Schwa-Bach-(A)dS), derived under the assumption of…

广义相对论与量子宇宙学 · 物理学 2018-12-10 Robert Svarc , Jiri Podolsky , Vojtech Pravda , Alena Pravdova

We investigate the thermodynamic properties, light deflection, and orbital dynamics of regular magnetically charged black holes (NRCBHs) arising from nonlinear electrodynamics (NED) coupled to general relativity. The metric function $f(r)$…

广义相对论与量子宇宙学 · 物理学 2025-07-08 Ekrem Aydiner , Erdem Sucu , İzzet Sakallı

We have extended the results of arXiv:1704.06076 upto second subleading order in an expansion around large dimension D. Unlike the previous case, there are non-trivial metric corrections at this order. Due to our `background-covariant'…

高能物理 - 理论 · 物理学 2018-11-14 Sayantani Bhattacharyya , Parthajit Biswas , Yogesh Dandekar

In the near-horizon region, black holes exhibit an infinite-dimensional symmetry reminiscent of the Bondi-Metzner-Sachs (BMS) supertranslations. The conserved charges associated with this symmetry can be computed in gravitational theories…

高能物理 - 理论 · 物理学 2025-06-30 Mariano Chernicoff , Gaston Giribet , Julio Oliva

In this work, the analysis of some new static black hole solutions of Lovelock gravity with nonconstant curvature transverse section is presented. It will be shown that the finiteness of the charges and the action principle rely on the…

广义相对论与量子宇宙学 · 物理学 2024-05-15 R. Aros , Milko Estrada

Black hole entropy is identified with the counting of the dynamical degrees of freedom of trapped gravitational modes continually sourced by the Hawking-Unruh process. In the context of linear perturbations of Schwarzschild spacetime the…

广义相对论与量子宇宙学 · 物理学 2026-01-14 Seth Major , Daniel Rodriguez , Thomas Takis

In the context of $f(R)$ theories of gravity, we address the problem of finding static and spherically symmetric black hole solutions. Several aspects of constant curvature solutions with and without electric charge are discussed. We also…

广义相对论与量子宇宙学 · 物理学 2010-01-15 A. de la Cruz-Dombriz , A. Dobado , A. L. Maroto

We examine the behavior of non-commutative Schwarzschild black holes in the context of massive gravity. According to the investigation, corresponding to a minimal mass, the black hole can have two horizons, one horizon, or no horizon at…

广义相对论与量子宇宙学 · 物理学 2024-04-17 Piyali Bhar , Dhruba Jyoti Gogoi , Supakchai Ponglertsakul