Speaker
Prof.
Aram Saharian
(Yerevan State University)
Description
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 assum 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 values (VEVs) of the electric field squared is evaluated for
both exterior and interior regions. The VEVs are 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.
Primary author
Prof.
Aram Saharian
(Yerevan State University)
Co-author
Dr
Vardan Manukayan
(Gyumri State Pedagogical Institute)
