Dynamical Casimir Effect in Superradiant Light Scattering by Bose-Einstein Condensate in an Optomechanical Cavity

TL;DR

This paper explores how the dynamical Casimir effect influences superradiant light scattering in a Bose-Einstein condensate within an optomechanical cavity, comparing classical and quantum mirror motions under various modulation strengths.

Contribution

It introduces a detailed analysis of the dynamical Casimir effect's impact on superradiant scattering, highlighting differences between classical and quantum mirror dynamics under harmonic modulation.

Findings

Scattered photon amplitude is higher with classical mirror motion.

Lower modulation amplitude yields higher initial scattered photon amplitude.

Behavior under strong and weak modulation is similar for quantized mirror motion.

Abstract

We investigate the effects of dynamical Casimir effect in superradiant light scattering by Bose-Einstein condensate in an optomechanical cavity. The system is studied using both classical and quantized mirror motions. The cavity frequency is harmonically modulated in time for both the cases. The main quantity of interest is the number of intracavity scattered photons. The system has been investigated under the weak and strong modulation. It has been observed that the amplitude of the scattered photons is more for the classical mirror motion than the quantized mirror motion. Also, initially, the amplitude of scattered photons is high for lower modulation amplitude than higher modulation amplitude. We also found that the behaviour of the plots are similar under strong and weak modulation for the quantized mirror motion.