17-21 September 2019
Yerevan, Armenia
Etc/GMT+4 timezone

Vacuum fluxes from a brane in de Sitter spacetime with compact dimensions

20 Sep 2019, 16:00
Yerevan, Armenia

Yerevan, Armenia

Department of Physics, Alex Manoogian str. 1, Yerevan, Armenia


Dr David Simonyan


We investigate the vacuum expectation value of the energy flux density for a complex 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. Depending on the values of the parameters in the problem, the flux can be directed from the brane or to the brane. The behavior of the flux density in various asymptotic regions is investigated. It has been shown that the energy flux density is an even periodic function of magnetic fluxes enclosed by compact dimensions with the period equal to flux quantum.

Primary authors

Prof. Aram Saharian (Yerevan State University ) Dr David Simonyan Mr Tigran Petrosyan (Yerevan State University)

Presentation Materials