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The research on the quantum tunneling characteristics and the radiation spectrum of the stationary axisymmetric black hole

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Science China(Physics,Mechanics & Astronomy) 2007年第2期50卷 249-260页

作者： YANG ShuZheng LI HuiLing JIANG QingQuan LIU MenQuan Institute of Theoretical Physics China West Normal UniversityNanchong 637002China

At the event horizon and the cosmological horizon of the stationary axisymmetric Kerr-Newman black hole in the de Sitter space-time background, the tunneling rate of the charged particles is relevant with bekenstein-hawking entropy and the real radiation spectrum is not strictly pure thermal, but consistent with the underlying unitary theory in quantum mechanics. This is a feasible interpretation for the paradox of the black hole information loss. Taking the self-gravitation action, energy conservation, angular momentum conservation and charge conservation into account, the derived radiation spectrum is a correct amendment to the hawking pure thermal spectrum.

关键词： Kerr-Newman de Sitter black hole energy conservation charge conservation angular momentum conservation funneling rate bekenstein-hawking entropy

General radiation via tunneling in Kerr and Kerr-Newman black holes

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Science China(Physics,Mechanics & Astronomy) 2008年第9期51卷 1200-1205页

作者： GAO Li LIU WenBiao Department of Physics Institute of Theoretical PhysicsBeijing Normal UniversityBeijing 100875China

hawking radiation can be viewed as a process of quantum tunneling near the black hole horizon. When a particle with angular momentum L≠ω a tunnels across the event horizon of Kerr or Kerr-Newman black hole, the angular momentum per unit mass a should be changed. The emission rate of the massless particles under this general case is calculated, and the result is consistent with an underlying unitary theory.

关键词： hawking radiation black hole bekenstein-hawking entropy quantum unitary theory Painleve coordinates

Entropy Evolution in the Interior Volume of a Charged f(R) Black Hole

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Communications in Theoretical Physics 2019年第6期71卷 718-722页

作者： Shad Ali Xin-Yang Wang Wen-Biao Liu Department of Physics Beijing Normal University

Based on the 4-dimensional black hole solution of f(R) theory coupled to a nonlinear Maxwell field, we calculate the interior volume of a charged f(R) black hole using the method proposed by Christodoulou and *** massless scalar field in the interior volume and hawking radiation carrying only energy, we calculate the entropy of the scalar field inside a charged f(R) black hole and investigate the evolution of the entropy under hawking radiation. In the meantime, the evolution of the bekenstein-hawking entropy under hawking radiation has also been calculated. Based on these results, the proportional relation is obtained between the evolution of the scalar field entropy and the evolution of bekenstein-hawking entropy under hawking radiation. According to the result, we investigate and discuss how the modified coefficient b in f(R) gravity theory affects the evolution relation between the two types of entropy. It is shown that the radiation rate for hawking radiation of a charged f(R) black hole can increase with the modified coefficient b.

关键词： f(R) black hole interior volume hawking radiation bekenstein-hawking entropy

Physics in Discrete Spaces: On Some Cosmological Issues

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Journal of Modern Physics 2015年第11期6卷 1456-1466页

作者： Pierre Peretto Laboratory of Physics and Modelling of Condensed Matter Grenoble France

This article is an application of the theory of discrete spaces to cosmology. Its conclusions are necessarily speculative. An interesting aspect is that it gives possible solutions to many pending problems within a unique framework. Let us cite a scenario for the Big-Bang that avoids any initial mathematical singularity, an interpretation of dark matter that does not involve any hadronic matter, a description of the formation of stellar and galactic black holes and, for the later, a description of quasars, their characteristics and their source of energy. Finally dark energy is also given an interpretation through modifications of the laws of gravity.

关键词： Big Bang Dark Matter Black Holes Quasars bekenstein-hawking Entropy Cosmological Constant