Steady-State Two Atom Entanglement in a Pumped Cavity Enhanced by Nonlinear Mirrors

TL;DR

This paper demonstrates how a nonlinear mirror in a pumped cavity can enhance steady-state entanglement between two atoms, providing insights into the system's dressed states for optimization.

Contribution

It introduces a model showing enhanced steady-state entanglement via nonlinear mirrors and analyzes the dressed states for system optimization.

Findings

Entanglement is enhanced by nonlinear mirrors.

Dressed states provide intuition for entanglement localization.

System optimization is achieved through dressed state analysis.

Abstract

We demonstrate the steady-state entanglement of two two-level atoms inside a pumped cavity with photon leakage through a nonlinear mirror and through spontaneous decay, and show that the entanglement is enhanced by the presence of a nonlinear mirror. Our model assumes the vacuum Rabi splitting of the dressed states of the system to be much larger than any of the decay parameters of the system. We also discuss how the dressed states of the system offer us intuition as to where the entanglement lies in the state space spanned by the system, and allow us the optimize the system.