182 citations · 4.3k across the 208 of their papers we have counts for
10 papers · 1 filter
Vacuum polarization around cosmic strings in de Sitter spacetime
A. A. Saharian
Cosmic strings are the most popular topological defects arising from the spontaneous breaking of fundamental symmetries in the early Universe. They are the source of a number of in…
Radiation of surface polaritons by an annular beam coaxially enclosing a cylindrical waveguide
A. A. Saharian, G. V. Chalyan, L. Sh. Grigoryan +2
We investigate the radiation of surface polaritons by an annular beam that coaxially encloses a cylindrical waveguide surrounded by a homogeneous medium. By using the Green dyadic,…
Finite temperature fermionic charge and current densities in conical space with a circular edge
A. A. Saharian, V. F. Manukyan, T. A. Petrosyan
We study the finite temperature and edge induced effects on the charge and current densities for a massive spinor field localized on a 2D conical space threaded by a magnetic flux.…
Generalized Abel-Plana formula as a renormalization tool in quantum field theory
A. A. Saharian
In quantum field theory the vacuum expectation values of physical observables, bilinear in the field operator, diverge. Among the most important points in the investigations of tho…
Topological Casimir effect in models with helical compact dimensions
R. M. Avagyan, A. A. Saharian, D. H. Simonyan +1
We investigate the influence of the helical compactification of spatial dimension on the local properties of the vacuum state for a charged scalar field with general curvature coup…
Plane symmetric gravitational fields in (D+1)-dimensional General Relativity
R. M. Avagyan, T. A. Petrosyan, A. A. Saharian +1
We consider plane symmetric gravitational fields within the framework of General Relativity in (D+1)-dimensional spacetime. Two classes of vacuum solutions correspond to higher-dim…