Generating EPR beams in a cavity optomechanical system

TL;DR

This paper proposes a scheme to generate continuous variable entanglement between two light modes in an optomechanical system, demonstrating robustness against temperature and mechanical quality factors, potentially enabling room-temperature quantum entanglement.

Contribution

It introduces a novel method for producing robust EPR entanglement in optomechanical systems that is insensitive to temperature and mechanical quality factors.

Findings

Entanglement is achievable at room temperature.

The scheme is insensitive to bath temperature and Q-factor.

Large entanglement can be generated under realistic conditions.

Abstract

We propose a scheme to produce continuous variable entanglement between phase-quadrature amplitudes of two light modes in an optomechanical system. For proper driving power and detuning, the entanglement is insensitive with bath temperature and $Q$ of mechanical oscillator. Under realistic experimental conditions, we find that the entanglement could be very large even at room temperature.