Absorption cross section in warped AdS_3 black hole revisited

Details Absorption cross section in warped AdS_3 black hole revisited Absorption cross section in warped AdS_3 black hole revisited

2009-07-31

arxiv.org/abs/0907.5555v2

JHEP 0909:102,2009

Physics

High Energy Physics

High Energy Physics - Theory

16+1 pages, typos corrected, references and footnotes added

Scientific paper

10.1088/1126-6708/2009/09/102

We investigate the absorption cross section for minimal-coupled scalars in the warped AdS_3 black hole. According to our calculation, the cross section reduces to the horizon area in the low energy limit as usually expected in contrast to what was previously found. We also calculate the greybody factor and find that the effective temperatures for the two chiral CFT's are consistent with that derived from the quasinormal modes. Observing the conjectured warped AdS/CFT correspondence, we suspect that a specific sector of the CFT operators with the desired conformal dimension could be responsible for the peculiar thermal behaviour of the warped AdS_3 black hole.

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