alexa Hawking radiation in different coordinate settings: Complex paths approach.


Research & Reviews: Journal of Pure and Applied Physics

Author(s): S Shankaranarayanan, T Padmanabhan, K Srinivasan

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We apply the technique of complex paths to obtain Hawking radiation in di erent coordinate representations of the Schwarzschild space-time. 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 nd 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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This article was published in Class. Quant. Grav. and referenced in Research & Reviews: Journal of Pure and Applied Physics

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