Absorption cross section in warped AdS3 black hole

被引:29
作者
Oh, John J. [1 ]
Kim, Wontae [2 ,3 ]
机构
[1] Natl Inst Math Sci, Div Interdisciplinary Math, Taejon 305340, South Korea
[2] Sogang Univ, Dept Phys, Seoul 100611, South Korea
[3] Sogang Univ, Ctr Quantum Spacetime, Seoul 121742, South Korea
关键词
Models of Quantum Gravity; Black Holes; ENERGY;
D O I
10.1088/1126-6708/2009/01/067
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
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 cosmological topologically massive gravity. It can be shown that the absorption cross section is unexpectedly deformed by the gravitational Chern-Simons term, which is proportional to the scattering area of black hole with an additional contribution depending on the combinations of 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.
引用
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页数:14
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