期刊
CLASSICAL AND QUANTUM GRAVITY
卷 19, 期 10, 页码 2671-2687出版社
IOP PUBLISHING LTD
DOI: 10.1088/0264-9381/19/10/310
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We apply the technique of complex paths to obtain Hawking radiation in different coordinate representations of the Schwarzschild spacetime. The coordinate representations we consider do not possess a singularity at the horizon unlike the standard Schwarzschild coordinate. However, the event horizon manifests itself as a singularity in the expression for the semiclassical action. This singularity is regularized by using the method of complex paths and we find that Hawking radiation is recovered in these coordinates indicating the covariance of Hawking radiation as far as these coordinates are concerned.
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