A simple model for the dynamical Casimir effect for a static mirror with time-dependent properties

Abstract

We consider a real massless scalar field in 1+1 dimensions satisfying time-dependent Robin boundary condition at a static wall. This condition can simulate moving reflecting mirrors whose motions are determined by the time-dependence of the Robin parameter. We show that particles can be created from vacuum, characterizing in this way a dynamical Casimir effect.Comment: 7 pages and 3 figures. Minor corrections made throughout the pape