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The semi-classical derivation of Hawking radiation for axially symmetric, stationary spacetimes with a Killing horizon is examined following the recent quasi-classical tunneling analysis and a simple formula is found for the inverse Hawking…

High Energy Physics - Theory · Physics 2008-09-17 Terry Pilling

Hawking radiation as a quantum phenomenon is generally attributed to the existence of the event horizon of a black hole. However, we demonstrate in this paper that there is indeed ingoing Hawking-like radiation associated with apparent…

General Relativity and Quantum Cosmology · Physics 2023-01-31 Sara Saghafi , Kourosh Nozari

In this paper, we analyze the Hawking radiation phenomenon for types of Banados-Teitelboim-Zanelli-like (BTZ-like) black holes. For this purpose, using the Hamilton-Jacobi method, we consider semi-classical WKB approximation to calculate…

General Relativity and Quantum Cosmology · Physics 2019-10-18 Wajiha Javed , Riasat Ali , Rimsha Babar , Ali Övgün

In this paper we investigate the properties of tunneling spectrum from weakly isolated horizon(WIH). We find that there are correlations among Hawking radiations from weakly isolated horizon, the information can be carried out in terms of…

General Relativity and Quantum Cosmology · Physics 2015-06-19 Ge-Rui Chen , Yong-Chang Huang

This paper deals with some thermodynamical aspects of Lorentzian wormholes, including the formulation of the three main laws and the consideration of a possible thermal emission made up of some sort of phantom radiation coming out from the…

General Relativity and Quantum Cosmology · Physics 2012-12-06 Prado Martin-Moruno , Pedro F. Gonzalez-Diaz

In this paper, we discuss the thermodynamic properties of the evolving Lorentzian wormhole. For the shape function $b(r) = r_{0}^2/r$, it is shown that the wormhole spacetime admits two apparent horizons, the inner and the outer one. The…

High Energy Physics - Theory · Physics 2009-11-16 Mubasher Jamil , M. Akbar

In this paper we investigate vector particles' Hawking radiation from a BTZ black hole. By applying the WKB approximation and the Hamilton-Jacobi Ansatz to the Proca equation, we obtain the tunneling spectrum of vector particles. The…

General Relativity and Quantum Cosmology · Physics 2015-02-03 Ge-Rui Chen , Shiwei Zhou , Yong-Chang Huang

Hawking radiation is an important quantum phenomenon of black hole, which is closely related to the existence of event horizon of black hole. The cosmological event horizon of de Sitter space is also of the Hawking radiation with thermal…

High Energy Physics - Theory · Physics 2009-07-24 Rong-Gen Cai , Li-Ming Cao , Ya-Peng Hu

In this paper we show that, analogously to as it occurs for black holes, there exist three well-defined laws for Lorentzian wormhole thermodynamics and that these laws are related with a thermal phantom-like radiation process coming from…

General Relativity and Quantum Cosmology · Physics 2015-05-13 Prado Martin-Moruno , Pedro F. Gonzalez-Diaz

Using tunnelling approach, Hawking radiation is derived for a general class of non-static spherically symmetric space time. The standard tunnelling rate formula is obtained using the unified first law of thermodynamics on the trapping…

General Relativity and Quantum Cosmology · Physics 2010-12-09 Subenoy Chakraborty , Nairwita Mazumder , Ritabrata Biswas

We study the Hawking radiation in a new class of black hole solutions in the Einstein-Gauss-Bonnet theory. The black hole has been argued to have vanishing mass and entropy, but finite Hawking temperature. To check if it really emits…

General Relativity and Quantum Cosmology · Physics 2015-06-03 Kenji Muneyuki , Nobuyoshi Ohta

In this letter, we present the first study of Hawking radiation as a tunneling process within the framework of non-commutative (NC) gauge theory of gravity. First, we reconstruct the non-commutative Schwarzschild black hole (NC SBH) within…

General Relativity and Quantum Cosmology · Physics 2023-11-28 Abdellah Touati , Slimane Zaim

We show that the first law of the black hole thermodynamics can lead to the tunneling probability through the quantum horizon by calculating the change of entropy with the quantum gravity correction and the change of surface gravity is…

High Energy Physics - Theory · Physics 2009-01-06 Baocheng Zhang , Qing-yu Cai , Ming-sheng Zhan

In this paper, we study Hawking radiation as a massless particles tunneling process across the event horizon from the Schwarzschild and Reissner-Nordstr\"om black holes pierced by an infinitely long spinning cosmic string and a global…

General Relativity and Quantum Cosmology · Physics 2015-10-28 Kimet Jusufi

In this paper, we investigate the tunneling process of charged massive bosons $W^{\pm }$ (spin-1 particles) from noncommutative charged black holes such as charged RN black holes and charged BTZ black holes. By applying the WKB…

General Relativity and Quantum Cosmology · Physics 2016-05-26 Ali Övgün , Kimet Jusufi

We investigated Dirac Particles' Hawking radiation from event horizon of Kerr black hole in terms of the tunneling formalism. Applying WKB approximation to the general covariant Dirac equation in Kerr spacetime background, we obtain the…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Ran Li , Ji-Rong Ren , Shao-Wen Wei

Recent research shows that Hawking radiation can be treated as a quantum tunnelling process, and Hawking temperature of Dirac particles across the horizon of a black hole can be correctly recovered via fermions tunnelling method. In this…

High Energy Physics - Theory · Physics 2008-11-26 Qing-Quan Jiang

We study Hawking radiation of Dirac particles with spin-$1/2$ as a tunneling process from Schwarzschild-de Sitter and Reissner-Nordstr\"{o}m-de Sitter black holes in background spacetimes with a spinning cosmic string and a global monopole.…

General Relativity and Quantum Cosmology · Physics 2016-07-06 Kimet Jusufi

I consider the problem of reconciling "tunneling" approaches to black-hole radiation with the treatment by quantum field theory in curved space-time. It is not possible to do this completely, but using what appears to be the most direct and…

High Energy Physics - Theory · Physics 2019-07-17 Adam D. Helfer

Gravitational lensing by traversable Lorentzian wormholes is a ew possibility which is analyzed here in the strong field limit. Wormhole solutions are considered in the Einstein minimally coupled theory and in the brane world model. The…

General Relativity and Quantum Cosmology · Physics 2009-11-11 Kamal Kanti Nandi , Yuan-Zhong Zhang , Alexander V. Zakharov