Speaker
Mr
Davit Simonyan
(Yerevan State University)
Description
We investigate the vacuum expectation values of physical observables for a charged scalar field in de Sitter spacetime with an arbitrary number of toroidally compact spatial dimension and in the presence of a brane. Quasiperiodicity conditions with arbitrary phases are imposed along compact dimensions and on the brane the field obeys Robin boundary condition. It has been shown that the vacuum expectation values of the field squared and the energy flux density are even periodic functions of magnetic fluxes enclosed by compact dimensions with the period equal to flux quantum. Also the behavior of the expectation values in various asymptotic regions is investigated.
Primary author
Mr
Davit Simonyan
(Yerevan State University)
