Note on the point-splitting procedure to evaluate vacuum fluctuation in certain cylindrically symmetric backgrounds

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1998-07-15

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Brevik, I.
Matsas, G. E A [UNESP]
Moreira, E. S. [UNESP]

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Resumo

We reexamine the two-point function approaches used to study vacuum fluctuation in wedge-shaped regions and conical backgrounds. The appearance of divergent integrals is discussed and circumvented. The issue is considered in the context of a massless scalar field in cosmic string spacetime.

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Physical Review D - Particles, Fields, Gravitation and Cosmology, v. 58, n. 2, p. 275021-275024, 1998.