Hawking radiation from the charged and magnetized BTZ black hole via covariant anomaly
Zeng Xiao-Xiong(曾晓雄)a)b)† and Yang Shu-Zheng(杨树政)a)‡
a Institute of Theoretical Physics, China West Normal University, Nanchong 637002, China; b Department of Physics and Engineering Technology, Sichuan University of Arts and Science, Dazhou 635000, China
Abstract This paper discusses Hawking radiation from the charged and magnetized Bañados--Teitelboim--Zanelli (BTZ) black hole from the viewpoint of anomaly, initiated by Robinson and Wilczek recently. It reconstructs the electromagnetic field tensor and the Lagrangian of the field corresponding to the source with electric and magnetic charges to redefine an equivalent charge and gauge potential. It employs the covariant anomaly cancellation method to determine the compensating fluxes of charge flow and energy-momentum tensor, which are shown to match with those of the 2-dimensional blackbody radiation at the Hawking temperature exactly.
Received: 22 February 2008
Revised: 01 July 2008
Accepted manuscript online:
PACS:
04.70.Dy
(Quantum aspects of black holes, evaporation, thermodynamics)
Fund: Project supported by the National
Natural Science Foundation of China (Grant No 10773008).
Cite this article:
Zeng Xiao-Xiong(曾晓雄) and Yang Shu-Zheng(杨树政) Hawking radiation from the charged and magnetized BTZ black hole via covariant anomaly 2009 Chin. Phys. B 18 462
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