Hawking radiation in different coordinate settings: complex paths approach

Shankaranarayanan, S. ; Padmanabhan, T. ; Srinivasan, K. (2002) Hawking radiation in different coordinate settings: complex paths approach Classical and Quantum Gravity, 19 (10). pp. 2671-2688. ISSN 0264-9381

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Official URL: http://iopscience.iop.org/0264-9381/19/10/310

Related URL: http://dx.doi.org/10.1088/0264-9381/19/10/310

Abstract

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.

Item Type:Article
Source:Copyright of this article belongs to Institute of Physics.
ID Code:73530
Deposited On:09 Dec 2011 05:26
Last Modified:09 Dec 2011 05:26

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