Vacuum-polarization effects in global monopole space-times

Details Vacuum-polarization effects in global monopole space-times Vacuum-polarization effects in global monopole space-times

Jan 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991phrvd..43..468m&link_type=abstract

Physical Review D (Particles and Fields), Volume 43, Issue 2, 15 January 1991, pp.468-475

Physics

38

Scientific paper

The gravitational effect produced by a global monopole may be approximated by a solid deficit angle. As a consequence, the energy-momentum tensor of a quantum field will have a nonzero vacuum expectation value. Here we study this ``vacuum-polarization effect'' around the monopole. We find explicit expressions for both <φ2>ren and ren for a massless scalar field. The back reaction of the quantum field on the monopole metric is also investigated.

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