PoS - Proceedings of Science
Volume 262 - The Modern Physics of Compact Stars 2015 (MPCS2015) - Session v cosmology and relativistic gravity
Electromagnetic Casimir densities for a cylindrical boundary in de Sitter spacetime
A. Saharian* and V.F. Manukyan
Full text: pdf
Published on: December 30, 2016
Abstract
Quantum vacuum effects are investigated for the electromagnetic field, induced by a conducting cylindrical shell in background of (D+1)dimensional de Sitter spacetime. We assume that the field is prepared in the Bunch-Davies vacuum state. A complete set of the electromagnetic field mode functions is determined. By using these mode functions, the vacuum expectation value
(VEV) of the electric field squared is evaluated for both exterior and interior regions. The VEV is decomposed into the boundary-free and boundary-induced contributions. The behavior of the latter is investigated in various asymptotic regions of the parameters. For D=3 the boundary-induced VEV is related to the corresponding result for a cylindrical shell in Minkowski spacetime by standard conformal relation.
DOI: https://doi.org/10.22323/1.262.0023
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