Open AccessNew studies of tunneling radiation from Kerr-Newman black holes
Author(s) -
Di Wu,
Xiaodan Zhu,
Shuang-Qing Wu
Publication year - 2014
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.63.180401
Subject(s) - physics , astron , black hole (networking) , rotating black hole , geodesic , charged black hole , hawking radiation , classical mechanics , extremal black hole , black hole information paradox , quantum tunnelling , quantum mechanics , quantum electrodynamics , gravitation , micro black hole , angular momentum , gravitational wave , schwarzschild radius , astrophysics , geometry , computer network , routing protocol , routing (electronic design automation) , computer science , link state routing protocol , mathematics , entropy (arrow of time)
In the paper [Wu D et al. Sci. sin. G: Phys. Mech. Astron. 43 115], starting from the action of a massive particle's Lagrangian, we have made a new, unified derivation of the timelike and null geodesics of a rotating Kerr black hole. Our results demonstrate that one need not constrain himself to adopt the dragging coordinate system to investigate the tunneling radiation of rotating black holes. That work completely overcomes all shortcomings existing in the previous related researches, thus making Parikh-Wilczek's semi-classical approach more perfect and consistent. In this paper, we extend that work to the case of a rotating charged black hole to present a new derivation of the geodesic equation of a massive charged particle in the Kerr-Newman black hole and to reinvestigate its tunneling radiation.