Strongly correlated quantum dynamics of multimode light coupled to a two-level atom in a cavity

TL;DR

This paper investigates how coupling a two-level atom to multiple light modes in a cavity affects the quantum phases, showing that it destroys the Mott phase and impacts quantum information applications.

Contribution

It demonstrates that multimode coupling destroys the Mott phase in a light-atom cavity system, highlighting limitations for quantum information processing.

Findings

Coupling to multiple modes destroys the Mott phase.

Multimode interactions reduce the system's usefulness for quantum info.

The study clarifies the impact of multimode coupling on quantum phases.

Abstract

We study a composite multimode light-two-level atom system in a cavity. We show that coupling of the two-level atom to multiple modes of the light destroys the Mott phase of the composite system thus making the system less useful platform for developing concepts in quantum information processing.