Electromagnetic Casimir densities induced by a conducting cylindrical shell in the cosmic string spacetime

被引：51
|
作者：
de Mello, E. R. Bezerra
Bezerra, V. B.
Saharian, A. A.
机构：
[1] Univ Fed Paraiba, Dept Fis, BR-58059970 Joao Pessoa, Paraiba, Brazil
[2] Yerevan State Univ, Dept Phys, Yerevan 375025, Armenia
来源：
PHYSICS LETTERS B | 2007年 / 645卷 / 2-3期
关键词：
D O I：
10.1016/j.physletb.2006.12.052
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We investigate the renormalized vacuum expectation values of the field square and the energy-momentum tensor for the electromagnetic field inside and outside of a conducting cylindrical shell in the cosmic string spacetime. By using the generalized Abel-Plana formula, the vacuum expectation values are presented in the form of the sum of boundary-free and boundary-induced parts. The asymptotic behavior of the vacuum expectation values of the field square, energy density and stresses are investigated in various limiting cases. (c) 2006 Elsevier B.V. All rights reserved.
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页码：245 / 254
页数：10
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