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

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

2006-11-28

arxiv.org/abs/hep-th/0611310v2

Phys.Lett.B645:245-254,2007

Physics

High Energy Physics

High Energy Physics - Theory

14 pages, 2 figures, discussion and references added, accepted for publication in Phys. Lett. B

Scientific paper

10.1016/j.physletb.2006.12.052

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.

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