Dressed Bose-Einstein Condensates in High-Q Cavities

TL;DR

This paper introduces a method to create multicomponent Bose-Einstein condensates within high-Q multimode cavities, revealing linear coupling and instabilities in the excitation spectrum through analytical and numerical analysis.

Contribution

It presents a novel approach for generating and analyzing multicomponent condensates in cavity QED systems with linear inter-component coupling.

Findings

Linear coupling between condensate components

Prediction of instabilities in quasiparticle spectrum

Confirmation through analytical and numerical methods

Abstract

We propose and analyze a way in which effective multicomponent condensates can be created inside high-Q multimode cavities. In contrast to the situation involving several atomic species or levels, the coupling between the various components of the dressed condensates is linear. We predict analytically and numerically confirm the onset of instabilities in the quasiparticle excitation spectrum.