Two formalisms, one renormalized stress-energy tensor

被引：11

作者：

Barcelo, C. ^{[1
]}

Carballo, R. ^{[1
]}

Garay, L. J. ^{[2
,3
]}

机构：

[1] CSIC, Inst Astrofis Andalucia, E-18008 Granada, Spain

[2] Univ Complutense Madrid, Dept Fis Teor 2, E-28040 Madrid, Spain

[3] CSIC, Inst Estruct Mat, E-28006 Madrid, Spain

来源：

PHYSICAL REVIEW D | 2012年 / 85卷 / 08期

关键词：

QUANTUM-FIELD-THEORY; SINGULARITY STRUCTURE; PARTICLE CREATION; 2-POINT FUNCTION; BLACK-HOLE;

D O I：

10.1103/PhysRevD.85.084001

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We explicitly compare the structure of the renormalized stress-energy tensor of a massless scalar field in a (1 + 1) curved spacetime as obtained by two different strategies: normal-mode construction of the field operator and one-loop effective action. We pay special attention to where and how the information related to the choice of vacuum state in both formalisms is encoded. By establishing a clear translation map between both procedures, we show that these two potentially different renormalized stress-energy tensors are actually equal, when using vacuum-state choices related by this map. One specific aim of the analysis is to facilitate the comparison of results regarding semiclassical effects in gravitational collapse as obtained within these different formalisms.

引用

页数：9

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