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When black holes are dynamical, event horizons are replaced by apparent and trapping horizons. Conformal and Kerr-Schild transformations are widely used in relation with dynamical black holes and we study the behaviour under such…

广义相对论与量子宇宙学 · 物理学 2015-06-18 Valerio Faraoni , Vincenzo Vitagliano

In this paper, the modified Hawking temperature of a static Riemann space-time is studied using the generalized Klein-Gordon equation and the generalized Dirac equation. Applying the Kerner-Mann quantum tunneling method, the modified…

广义相对论与量子宇宙学 · 物理学 2020-10-20 Y. Kenedy Meitei , T. Ibungochouba Singh , I. Ablu Meitei

The Hawking-Unruh effect of thermal radiance from a black hole or observed by an accelerated detector is usually viewed as a geometric effect related to the existence of an event horizon. Here we propose a new viewpoint, that the detection…

广义相对论与量子宇宙学 · 物理学 2007-05-23 B. L. Hu

In this second part of our two-series on extracting the Hawking temperature of dynamical black holes, we focus into spacetimes that are conformal transformations of static spacetimes. Our previous investigation builds upon the Unruh-Hawking…

广义相对论与量子宇宙学 · 物理学 2024-08-08 Pravin Kumar Dahal , Swayamsiddha Maharana

Does a dynamical black hole embedded in a cosmological FRW background emit Hawking radiation where a globally defined event horizon does not exist? What are the differences to the Schwarzschild black hole? What about the first law of black…

广义相对论与量子宇宙学 · 物理学 2015-05-27 J. T. Firouzjaee , Reza Mansouri

The horizon structure and thermodynamics of hairy spherically symmetric black holes generated by the gravitational decoupling method are carefully investigated. The temperature and heat capacity of the black hole is determined, as well as…

广义相对论与量子宇宙学 · 物理学 2022-07-11 Rogerio T. Cavalcanti , Kelvin dos S. Alves , Julio M. Hoff da Silva

In this work, we study Hawking radiation from a general static black hole due to tunnelling of particle having nonzero mass. Hawking temperature has been calculated using both the tunnelling method and the Hamilton-Jacobi method and the…

广义相对论与量子宇宙学 · 物理学 2012-10-01 Ritabrata Biswas , Nairwita Mazumder , Subenoy Chakraborty

A recent covariant formulation, that includes non-perturbative effects from loop quantum gravity (LQG) as self-consistent effective models, has revealed the possibility of non-singular black hole solutions. The new framework makes it…

广义相对论与量子宇宙学 · 物理学 2025-04-17 Idrus Husin Belfaqih , Martin Bojowald , Suddhasattwa Brahma , Erick I. Duque

We investigate the tunneling phenomenon of particles through the horizon of a magnetized Ernst-like black hole. We employ the modified Lagrangian equation with the extended uncertainty principle for this black hole. We determine a tunneling…

广义相对论与量子宇宙学 · 物理学 2023-02-01 Riasat Ali , Zunaira Akhtar , Kazuharu Bamba , M. Umar Khan

We give a general derivation, for any static spherically symmetric metric, of the relation $T_h=\frac{\cal K}{2\pi}$ connecting the black hole temperature ($T_h$) with the surface gravity ($\cal K$), following the tunneling interpretation…

高能物理 - 理论 · 物理学 2008-11-26 Rabin Banerjee , Bibhas Ranjan Majhi , Saurav Samanta

Thermodynamic formalism for rotating black holes, characterized by noncommutative and quantum corrections, is constructed. From a fundamental thermodynamic relation, equations of state and thermodynamic response functions are explicitly…

广义相对论与量子宇宙学 · 物理学 2016-11-28 L. F. Escamilla-Herrera , E. Mena-Barboza , J. Torres-Arenas

Considering gravitational and gauge anomalies at the horizon, a new successful method that to derive Hawking radiations from black holes has been developed recently by Wilczek et al.. By using the dimensional reduction technique, we apply…

高能物理 - 理论 · 物理学 2009-05-01 Shao-Wen Wei , Ran Li , Yu-Xiao Liu , Ji-Rong Ren

In this work we determine how the description of a four-dimensional Schwarzschild-anti de Sitter black hole affects the topological calculation of its Hawking temperature. It is shown that a two-dimensional approach is required due to the…

广义相对论与量子宇宙学 · 物理学 2019-03-13 Charles W. Robson , Leone Di Mauro Villari , Fabio Biancalana

This study investigates the evaporation process of a Schwarzschild black hole, incorporating quantum corrections arising from conformal anomaly and vacuum polarization. We demonstrate that these corrections significantly alter the Hawking…

高能物理 - 理论 · 物理学 2026-05-26 Moslem Shafiee , Ahmad Sheykhi

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

We investigate Hawking radiation from two-dimensional dilatonic black holes using standard quantization techniques. In the background of a collapsing black hole solution the Bogoliubov coefficients can be exactly determined. In the regime…

高能物理 - 理论 · 物理学 2009-11-27 Steven B. Giddings , W. M. Nelson

By analytically continuing the time variable in a black hole background, and requiring unitary evolution, it is found that quantum mechanical states at the horizon develop a thermal factor under suitable identification of the physical time.…

高能物理 - 理论 · 物理学 2007-05-23 Tze-Dan Chung

In this paper, we discuss the tunneling of scalar particles near the event horizon of stationary and nonstationary Kerr-de Sitter black hole using Lorentz violation theory in curved space time. The modified form of Hamilton-Jacobi equation…

广义相对论与量子宇宙学 · 物理学 2023-01-03 Y. Onika Laxmi , T. Ibungochouba Singh

By studying the Hawking radiation of the most general static spherically symmetric black hole arising from scalar and Dirac particles tunnelling, we find the Hawking temperature is invariant in the general coordinate representation…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Chikun Ding , Jiliang Jing

The quantum tunneling of charged massive vector boson particles across the event horizon of Kerr-Newman-de Sitter black hole is investigated under the influence of quantum gravity effects. The modified Hawking temperatures and heat…

广义相对论与量子宇宙学 · 物理学 2023-03-29 Yenshembam Priyobarta Singh , Telem Ibungochouba Singh