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arXiv · gr-qc/0703142

Particle creation in (2+1) circular dust collapse

Sashideep Gutti·T. P. Singh
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Abstract

We investigate the quantum particle creation during the circularly symmetric collapse of a 2+1 dust cloud, for the cases when the cosmological constant is either zero or negative. We derive the Ford-Parker formula for the 2+1 case, which can be used to compute the radiated quantum flux in the geometric optics approximation. It is shown that no particles are created when the collapse ends in a naked singularity, unlike the 3+1 case. When the collapse ends in a BTZ black hole, we recover the expected Hawking radiation.

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BibTeXRIS

Sashideep Gutti, T. P. Singh. 2007-08-13. Particle creation in (2+1) circular dust collapse. https://doi.org/10.1103/physrevd.76.064026

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