Dynamical Casimir effect enhanced by decreasing the mirror reflectivity

TL;DR

This paper demonstrates that a partially reflecting, time-dependent mirror can generate more particles via the dynamical Casimir effect than a perfect mirror, extending previous results for Robin boundary conditions.

Contribution

It introduces a model showing enhanced particle production with partially reflecting, time-dependent mirrors, generalizing previous perfect mirror results in the dynamical Casimir effect.

Findings

Partially reflecting mirrors produce more particles than perfect mirrors.

Results recover known cases for Robin boundary conditions.

Enhanced particle creation depends on mirror reflectivity and dynamics.

Abstract

In the present paper, we show that a partially reflecting static mirror with time-dependent properties can produce, via dynamical Casimir effect in the context of a massless scalar field in $1+1$ dimensions, a larger number of particles than a perfectly reflecting one. As particular limits, our results recover those found in the literature for a perfect static mirror imposing a generalized or an usual time-dependent Robin boundary condition.