Note on the point-splitting procedure to evaluate vacuum fluctuation in certain cylindrically symmetric backgrounds
High Energy Physics - Theory
2009-01-14 v1 General Relativity and Quantum Cosmology
Abstract
We revisit two-point function approaches used to study vacuum fluctuation in wedge-shaped regions and conical backgrounds. Appearance of divergent integrals is discussed and circumvented. The issue is considered in the context of a massless scalar field in cosmic string spacetime.
Keywords
Cite
@article{arxiv.hep-th/9803219,
title = {Note on the point-splitting procedure to evaluate vacuum fluctuation in certain cylindrically symmetric backgrounds},
author = {I. Brevik and G. E. A. Matsas and E. S. Moreira},
journal= {arXiv preprint arXiv:hep-th/9803219},
year = {2009}
}
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REVTeX file, 7 pages