Casimir densities for a boundary in Robertson-Walker spacetime

被引：3
|
作者：
Saharian, A. A. [2 ]
Setare, M. R. [1 ]
机构：
[1] Univ Kurdistan, Dept Sci Bijar, Bijar, Iran
[2] Yerevan State Univ, Dept Phys, Yerevan 0025, Armenia
来源：
PHYSICS LETTERS B | 2010年 / 687卷 / 2-3期
关键词：
Curved boundary; Casimir densities; Robertson-Walker spacetime; Fulling-Rindler vacuum; NONCONFORMAL SCALAR FIELD; VACUUM; ENERGY; ACCELERATION; POLARIZATION; TENSOR; BRANE;
D O I：
10.1016/j.physletb.2010.03.041
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
For scalar and electromagnetic fields we evaluate the vacuum expectation value of the energy-momentum tensor induced by a curved boundary in the Robertson-Walker spacetime with negative spatial curvature. In order to generate the vacuum densities we use the conformal relation between the Robertson-Walker and Rindler spacetimes and the corresponding results for a plate moving by uniform proper acceleration through the Fulling-Rindler vacuum. For the general case of the scale factor the vacuum energy-momentum tensor is presented as the sum of the boundary free and boundary induced parts. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：253 / 257
页数：5
相关论文
共 50 条
12345