scholarly journals Hawking radiation from a Reissner-Nordström black hole with a global monopole via covariant anomalies and effective action

2008 ◽  
Vol 78 (4) ◽  
Author(s):  
Sunandan Gangopadhyay
Keyword(s):  
Black Hole ◽  
Effective Action ◽  
Hawking Radiation ◽  
Global Monopole

TUNNELING FROM REISSNER-NORDSTRÖM-DE SITTER BLACK HOLE WITH A GLOBAL MONOPOLE

2013 ◽  
Vol 23 ◽  
pp. 271-275 ◽  
Author(s):  
M. SHARIF ◽  
WAJIHA JAVED
Keyword(s):  
Black Hole ◽  
Dirac Equation ◽  
Hawking Radiation ◽  
Tunneling Probability ◽  
Back Reaction ◽  
Global Monopole ◽  
De Sitter ◽  
Fermions Tunneling ◽  
Tunneling Phenomenon ◽  
Entropy Corrections

This paper is devoted to investigate the Hawking radiation as a tunneling phenomenon from the Reissner-Nordström-de Sitter black hole with a global monopole. We use the semiclassical WKB approximation to the general covariant charged Dirac equation and evaluate tunneling probability as well as Hawking temperature. We also study the back reaction effects of the emitted spin particles and Bekenstein-Hawking entropy corrections of fermions tunneling through horizon.

Hawking radiation of Reissner-Nordström de Sitter Black Hole with a Global Monopole derived from modified Hamilton-Jacobi equation

2020 ◽  
Author(s):  
Zhi-E Liu ◽  
Xia Tan ◽  
Yu-Zhen Liu ◽  
Bei Sha ◽  
Jie Zhang ◽  
...  
Keyword(s):  
Black Hole ◽  
Hawking Radiation ◽  
Jacobi Equation ◽  
Lorentz Violation ◽  
Physical Nature ◽  
Space Time ◽  
Global Monopole ◽  
De Sitter ◽  
Curved Space ◽  
Hamilton Jacobi Equation

The tunneling characteristics at cosmological horizon and event horizon of Reissner-Nordström de Sitter black hole with a global monopole are studied by using the modified Lorentz violation scalar field equation in curved space-time. Firstly, we get the modified Hamilton-Jacobi equation by semi-classical approximation, then the Hawking radiation and thermodynamical properties of Reissner-Nordström de Sitter black hole with a global monopole are computed based on the modified Hamilton-Jacobi equation. Our results show that Lorentz violation can lead to lower Hawking temperature and higher entropy of the black hole at the same time. This work can improve the understanding on the physical nature of Lorentz violation in curved space-time.

Hawking Radiation from Horizons of Reissner–Nordström de Sitter Black Hole with a Global Monopole via Anomalies

2008 ◽  
Vol 50 (2) ◽  
pp. 537-540 ◽  
Author(s):  
Chen Shi-Wu ◽  
Liu Xiong-Wei ◽  
Lin Kai ◽  
Zeng Xiao-Xiong ◽  
Yang Shu-Zheng
Keyword(s):  
Black Hole ◽  
Hawking Radiation ◽  
Global Monopole ◽  
De Sitter
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