Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2007-02-06
Phys.Rev.D75:044027,2007
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
7 pages, accepted for publication in Physical Review D
Scientific paper
10.1103/PhysRevD.75.044027
The tunneling effect near a weakly isolated horizon (WIH) has been studied. By applying the null geodesic method of Parikh and Wilczek and Hamilton-Jacibi method of Angheben et al. to a weakly isolated horizon, we recover the semiclassical emission rate in the tunneling process. We show that the tunneling effect exists in a wide class of spacetimes admitting weakly isolated horizons. The general thermodynamic nature of WIH is then confirmed.
Gao Sijie
Wu Xiaoning
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