Anomalies and Hawking radiation from the Reissner-Nordstrom black hole with a global monopole

作者：Wu Shuang Qing^*; Peng Jun Jin

来源：Classical and Quantum Gravity, 2007, 24(20): 5123-5138.

DOI：10.1088/0264-9381/24/20/013

We extend the work by Iso, Umetsu and Wilczek ( 2006 Phys. Rev. Lett. 96 151302) to derive the Hawking flux via gauge and gravitational anomalies of a most general two-dimensional non-extremal black hole spacetime with the determinant of its diagonal metric differing from unity (root- g not equal 1) and use it to investigate Hawking radiation from the Reissner-Nordstrom black hole with a global monopole by requiring the cancellation of anomalies at the horizon. It is shown that the compensating energy-momentum and gauge fluxes required to cancel gravitational and gauge anomalies at the horizon are precisely equivalent to the ( 1 + 1)-dimensional thermal fluxes associated with Hawking radiation emanating from the horizon at the Hawking temperature. These fluxes are universally determined by the value of anomalies at the horizon.

• 出版日期2007-10-21
• 单位华中师范大学