Dependence of the vacuum energy on spherically symmetric background fields

被引：8

作者：

Bordag, M

Hellmund, M

Kirsten, K

机构：

[1] Univ Leipzig, Inst Theoret Phys, D-04109 Leipzig, Germany

[2] Univ Manchester, Dept Theoret Phys, Manchester M13 9PL, Lancs, England

来源：

PHYSICAL REVIEW D | 2000年 / 61卷 / 08期

关键词：

D O I：

10.1103/PhysRevD.61.085008

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The vacuum energy of a scalar field in a spherically symmetric background field is considered. Based on previous work [Phys. Rev. D 53. 5753 (1996)], the numerical procedure is refined further and applied to several examples. We provide numerical evidence that repulsive potentials lead to positive contributions to the vacuum energy. Furthermore, the crucial role played by bound states is clearly seen.

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页数：9

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