Journal
PHYSICS LETTERS B
Volume 665, Issue 2-3, Pages 106-110Publisher
ELSEVIER
DOI: 10.1016/j.physletb.2008.05.064
Keywords
Dirac particles; Hawking radiation; tunnelling; rotating black holes in de Sitter spaces
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Hawking radiation from black hole horizon can be viewed as a quantum tunnelling process, and recent research shows fermions via tunnelling from black holes can correctly recover Hawking temperature. In this letter, considering the tunnelling particles with spin 1/2 (namely, Dirac particles), we further improve Kerner and Mann's fermions tunnelling method to study Hawking radiation via tunnelling from rotating black holes in de Sitter spaces, specifically including that from Kerr-de Sitter black hole and Kerr-Newman-de Sitter black hole. As a result, Hawking temperatures at the event horizon (EH) and the cosmological horizon (CH) are well described via Dirac particles' tunnelling. (c) 2008 Elsevier B.V. All rights reserved.
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