Steady-state mechanical squeezing in a hybrid atom-optomechanical system with a highly dissipative cavity

TL;DR

This paper presents a theoretical scheme for achieving steady-state mechanical squeezing in a hybrid atom-optomechanical system, effective even with high optical cavity dissipation, advancing quantum control and precision measurement techniques.

Contribution

It introduces a robust method for steady-state mechanical squeezing leveraging mechanical nonlinearity and cavity cooling in highly dissipative cavities, with numerical validation.

Findings

Steady-state squeezing is achievable in highly dissipative cavities.

The scheme is robust against optical cavity dissipation.

Numerical simulations confirm the effectiveness of the squeezing process.

Abstract

Quantum squeezing of mechanical resonator is important for studying the macroscopic quantum effects and the precision metrology of weak forces. Here we give a theoretical study of a hybrid atom-optomechanical system in which the steady-state squeezing of the mechanical resonator can be generated via the mechanical nonlinearity and cavity cooling process. The validity of the scheme is assessed by simulating the steady-state variance of the mechanical displacement quadrature numerically. The scheme is robust against dissipation of the optical cavity, and the steady-state squeezing can be effectively generated in a highly dissipative cavity.