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Ho\v{r}ava-Lifshitz (HL) gravity was formulated in hope of solving the non-renormalization problem in Einstein gravity and the ghost problem in higher derivative gravity theories by violating Lorentz invariance. In this work we consider the…

广义相对论与量子宇宙学 · 物理学 2020-08-11 Hao Xu , Yen Chin Ong

We study the evaporation process of 2D black holes in thermal equilibrium when the incoming radiation is turned off. Our analysis is based on two different classes of 2D dilaton gravity models which are exactly solvable in the semiclassical…

高能物理 - 理论 · 物理学 2009-10-30 J. Cruz , J. Navarro-Salas

Assuming only statistical mechanics and general relativity, we calculate the maximal temperature of gas of particles placed in AdS space-time. If two particles with a given center of mass energy come close enough, according to classical…

广义相对论与量子宇宙学 · 物理学 2017-05-08 De-Chang Dai , Dejan Stojkovic

The Stefan-Boltzmann law can estimate particle emission power and lifetime of a black hole. However, in modified gravity theories, new parameters in the action can cause qualitative changes in thermodynamic quantities, thus obtaining…

广义相对论与量子宇宙学 · 物理学 2024-01-31 Hao Xu , Yun Du

We investigate the black hole thermodynamics in a "deformed" relativity framework where the energy-momentum dispersion law is Lorentz-violating and the Schwarzchild-like metric is momentum-dependent with a Planckian cut-off. We obtain net…

广义相对论与量子宇宙学 · 物理学 2009-05-22 G. Salesi , E. Di Grezia

We use the global embedding of a black hole spacetime into a higher dimensional flat spacetime to define a local temperature for observers in free fall outside a static black hole. The local free-fall temperature remains finite at the event…

高能物理 - 理论 · 物理学 2009-11-18 Erling J. Brynjolfsson , Larus Thorlacius

In this letter we study the process of Hawking radiation of a black hole assuming the existence of a limiting physical curvature scale. The particular model is constructed using the Limiting Curvature Hypothesis (LCH) and in the context of…

高能物理 - 理论 · 物理学 2014-11-18 Damien A. Easson

In both canonical ensemble and grand canonical ensemble, the thermodynamic stability and phase structure of Einstein-Euler-Heisenberg-AdS black hole are studied. We derive the Hawking temperature, Helmholtz free energy, Gibbs potential,…

高能物理 - 理论 · 物理学 2025-01-24 Yinan Zhao , Hongbo Cheng

We consider Hawking radiation as due to a tunneling process in a black hole were quantum corrections, derived from Quantum Einstein Gravity, are taken into account. The consequent derivation, satisfying conservation laws, leads to a…

广义相对论与量子宇宙学 · 物理学 2015-06-16 R. Torres , F. Fayos , O. Lorente-Espin

There are some examples in the literature, in which despite the fact that the underlying theory or model does not impose a lower bound on the size of black holes, the final temperature under Hawking evaporation is nevertheless finite and…

广义相对论与量子宇宙学 · 物理学 2019-06-25 Yuan Yao , Meng-Shi Hou , Yen Chin Ong

The charged 2D black hole is visualized as presenting an potential barrier $V^{OUT}(r^*)$ to on-coming tachyon wave. Since this takes the complicated form, an approximate form $V^{APP}(r^*)$ is used for scattering analysis. We calculate the…

高能物理 - 理论 · 物理学 2009-10-28 Jin Young Kim , H. W. Lee , Y. S. Myung

An explicit formula for the ADM mass of an asymptotically AdS black hole in a generic Lovelock gravity theory is presented, identical in form to that in Einstein gravity, but multiplied by a function of the Lovelock coupling constants and…

高能物理 - 理论 · 物理学 2015-05-28 David Kastor , Sourya Ray , Jennie Traschen

The possibility that dark matter particles could be constituted by extreme regular primordial black holes is discussed. Extreme black holes have zero surface temperature, and are not subjected to the Hawking evaporation process. Assuming…

广义相对论与量子宇宙学 · 物理学 2018-05-14 José Antonio de Freitas Pacheco

We obtain an exact solution of $AdS$ black hole solution in Einstein-Gauss-Bonnet (EGB) gravity coupled with nonlinear electrodynamics. It interpolates with the $AdS$ regular black hole and $AdS$ EGB black hole in the absence of the…

广义相对论与量子宇宙学 · 物理学 2022-08-30 Dharm Veer Singh , Vinod Kumar Bhardwaj , Sudhaker Upadhyay

It might be tempting to consider that the two-dimensional anti-de Sitter black hole in the Jackiw-Teitelboim model is thermally hot by invoking the non-vanishing surface gravity. So, one might expect that the local temperature would also be…

广义相对论与量子宇宙学 · 物理学 2019-10-14 Wontae Kim

According to current theory a black hole has a nonzero temperature and thus radiates like any black body. This remarkable result was first shown by Hawking for a non-spinning black hole using general relativity to describe the black hole…

广义相对论与量子宇宙学 · 物理学 2026-02-11 Ronald J. Adler

The Hawking temperature for Schwarzschild black hole $T_H=1/8\pi M$ is singular in the limit of vanishing mass $M\to 0$. However, the Schwarzschild metric itself is regular in this limit, it is reduced to the Minkowski metric and there are…

高能物理 - 理论 · 物理学 2021-04-27 Irina Aref'eva , Igor Volovich

We consider leading order quantum corrections to the geometry of large AdS black holes in a spherical reduction of four-dimensional Einstein gravity with negative cosmological constant. The Hawking temperature grows without bound with…

高能物理 - 理论 · 物理学 2009-06-19 Samuli Hemming , Larus Thorlacius

Assuming gauge/gravity correspondence we study reheating of the Universe using its holographic dual. Inflaton decay and thermalisation of the decay products correspond to collapse of a spherical shell and formation of a blackhole in the…

高能物理 - 理论 · 物理学 2016-06-29 Shinsuke Kawai , Yu Nakayama

We study the formation and the evaporation of a spherically symmetric black hole in conformal gravity. From the collapse of a spherically symmetric thin shell of radiation, we find a singularity-free non-rotating black hole. This black hole…

广义相对论与量子宇宙学 · 物理学 2018-09-03 Cosimo Bambi , Leonardo Modesto , Shiladitya Porey , Leslaw Rachwal
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