Deformation of contour and Hawking temperature

2010/01/12 by Chikun Ding, Jiliang Jing · 2 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Noncommutative and Quantum Gravity Theories #gr-qc

paper · pdf · doi:10.1088/0264-9381/27/3/035004

published as Class. Quantum Grav. 27 (2010) 035004 · 14 pages, 1 figure, Accepted by CQG

openalex publication_date 2010/01/12 · arxiv created 2010/01/19 · arxiv updated 2010/02/26 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30

Abstract

It was found that, in an isotropic coordinate system, the tunneling approach brings a factor of for the Hawking temperature of a Schwarzschild black hole. In this paper, we address this kind of problem by studying the relation between the Hawking temperature and the deformation of the integral contour for the scalar and Dirac particles tunneling. We find that the correct Hawking temperature can be obtained exactly as long as the integral contour deformed corresponding to the radial coordinate transform if the transformation is a non-regular or zero function at the event horizon.

Citations

• Hawking Radiation as Tunneling
• Black Holes and Entropy

Cited by

• Extension of non-minimal derivative coupling theory and Hawking radiation in black-hole spacetime
• Quantum tunneling from scalar fields in rotating black strings