Absorption Cross Section in Warped AdS${}_3$ Black Hole

Abstract

The absorption cross section is studied in the low-frequency region for a propagating scalar field under the warped AdS${}_3$ black hole background in the topologically massive gravity. It can be shown that the absorption cross section is significantly deformed by the gravitational Chern-Simons term, which is proportional to the scattering area of black hole with an additional contribution depending on the left-moving and right-moving temperatures. It means that the cross section is larger than the area in spite of the s-wave limit. Finally, we discuss the left-right quasinormal modes for the scalar perturbation in this black hole.

15 pages, LaTeX, To appear in JHEP

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Cited by in corpus (22)

• Warped Conformal Field Theory
• On the Generalized Massive Gravity in $Ad{S}_3$
• Quasi-normal modes of warped black holes and warped AdS/CFT correspondence
• Chern-Simons black holes: scalar perturbations, mass and area spectrum and greybody factors
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