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

de Mello, E. R. Bezerra; Bezerra, V. B.; Saharian, A. A.

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

Authors

de Mello, E. R. Bezerra

Bezerra, V. B.

Saharian, A. A.

Description

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