Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2007-11-22
JHEP0803:019,2008
Physics
High Energy Physics
High Energy Physics - Theory
16 pages, 7 figures, minor modification, accepted for publication in JHEP
Scientific paper
10.1088/1126-6708/2008/03/019
We study the absorption probability and Hawking radiation of the scalar field in the rotating black holes on codimension-2 branes. We find that finite brane tension modifies the standard results in Hawking radiation if compared with the case when brane tension is completely negligible. We observe that the rotation of the black hole brings richer physics. Nonzero angular momentum triggers the super-radiance which becomes stronger when the angular momentum increases. We also find that rotations along different angles influence the result in absorption probability and Hawking radiation. Compared with the black hole rotating orthogonal to the brane, in the background that black hole spins on the brane, its angular momentum brings less super-radiance effect and the brane tension increases the range of frequency to accommodate super-radiance. These information can help us know more about the rotating codimension-2 black holes.
Chen Songbai
Pauchy Hwang W.-Y.
Su Ru-Keng
Wang Bin
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