Quantum Fluctuations of Scalar Field in Conical Space

Details Quantum Fluctuations of Scalar Field in Conical Space Quantum Fluctuations of Scalar Field in Conical Space

1997-05-14

arxiv.org/abs/gr-qc/9705041v1

Phys.Lett. B405 (1997) 236-242

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

8 pages, RevTeX file, no figure, to appear in Phys. Lett. B

Scientific paper

10.1016/S0370-2693(97)00594-7

We consider vacuum polarization effect of a conformally coupled massless
scalar field in the background produced by an idealized straight cosmic string.
Using previous criterion we show the calculation of back reaction of the field
to the metric in the context of semiclassical gravity theory is not valid , in
some regions due to large quantum fluctuations in the conical space.

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