VACUUM-POLARIZATION EFFECTS IN GLOBAL MONOPOLE SPACE-TIMES

被引：49

作者：

MAZZITELLI, FD

LOUSTO, CO

机构：

[1] INST ASTRON & FIS ESPACIO,RA-1428 BUENOS AIRES,ARGENTINA

[2] UNIV BUENOS AIRES,FAC CIENCIAS EXACTAS & NAT,DEPT FIS,RA-1428 BUENOS AIRES,ARGENTINA

来源：

PHYSICAL REVIEW D | 1991年 / 43卷 / 02期

关键词：

D O I：

10.1103/PhysRevD.43.468

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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 (phi-2)ren and <T-mu-v>ren for a massless scalar field. The back reaction of the quantum field on the monopole metric is also investigated.

引用

页码：468 / 475

页数：8

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