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

Abstract

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.