Cavity Dynamical Casimir Effect in the presence of a three-level atom

TL;DR

This paper investigates how a three-level atom influences photon generation via the dynamical Casimir effect in a cavity, showing that the third level alters photon statistics and can indicate vacuum photon creation.

Contribution

It provides analytical and numerical analysis of a three-level atom's impact on the dynamical Casimir effect, highlighting the role of the third level in photon statistics.

Findings

Third level modifies photon statistics

Population of the third level indicates photon generation

Analytical and numerical results agree on key effects

Abstract

We consider the scenario in which a damped three-level atom in the ladder or V configurations is coupled to a single cavity mode whose vacuum state is amplified by dint of the dynamical Casimir effect. We obtain approximate analytical expressions and exact numerical results for the time-dependent probabilities, demonstrating that the presence of the third level modifies the photon statistics and its population can serve as a witness of photon generation from vacuum.