Atom-mirror cooling and entanglement using cavity Electromagnetically Induced Transparency

TL;DR

This paper demonstrates how cavity Electromagnetically Induced Transparency (EIT) can enable ground-state cooling and entanglement between a mechanical mirror and atomic ensemble in a hybrid optomechanical system.

Contribution

It introduces a novel method leveraging EIT to achieve strong atom-mirror coupling, ground-state cooling, and entanglement in a hybrid system.

Findings

Successful ground-state cooling of the mechanical mirror.

Robust atom-mirror entanglement achieved.

Effective quantum state mapping between atoms and mirror.

Abstract

We investigate a hybrid optomechanical system comprised of a mechanical oscillator and an atomic 3-level ensemble within an optical cavity. We show that a suitably tailored cavity field response via Electromagnetically Induced Transparency (EIT) in the atomic medium allows for strong coupling of the mechanical mirror oscillations to the collective atomic ground-state spin. This facilitates ground-state cooling of the mirror motion, quantum state mapping and robust atom-mirror entanglement even for cavity widths larger than the mechanical oscillator frequency.