Physics
Scientific paper
Dec 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008gregr..40.2533z&link_type=abstract
General Relativity and Gravitation, Volume 40, Issue 12, pp.2533-2542
Physics
1
Hawking Radiation, Covariant Anomaly, Dyonic Particles
Scientific paper
Hawking radiation of particles with electric and magnetic charges from the Einstein Maxwell-Dilaton Axion black hole is derived via the anomaly cancellation method, initiated by Robinson and Wilczek and elaborated by Banerjee and Kulkarni recently. We reconstruct the electromagnetic field tensor to redefine the gauge potential and equivalent charge corresponding to the source with electric and magnetic charges. We only adopt the covariant gauge and gravitational anomalies to discuss the near-horizon quantum anomaly in the dragging coordinate frame. Our result shows that Hawking radiation in this case also can be reproduced from the viewpoint of anomaly.
Liu Xiong-Wei
Yang Shu-Zheng
Zeng Xiao-Xiong
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