Dynamic dissipative cooling of a mechanical oscillator in strong-coupling optomechanics

TL;DR

This paper proposes a dynamic dissipation control method in strong-coupling optomechanics that accelerates cooling, suppresses noise, and surpasses quantum backaction limits, advancing macroscopic quantum physics research.

Contribution

It introduces a novel dynamic dissipation control technique that enhances cooling efficiency and reduces quantum limits in strong-coupling optomechanical systems.

Findings

Significantly accelerates mechanical resonator cooling

Suppresses heating noise effectively

Reduces cooling limit by several orders of magnitude

Abstract

Cooling of mesoscopic mechanical resonators represents a primary concern in cavity optomechanics. Here in the strong optomechanical coupling regime, we propose to dynamically control the cavity dissipation, which is able to significantly accelerate the cooling process while strongly suppressing the heating noise. Furthermore, the dynamic control is capable of overcoming quantum backaction and reducing the cooling limit by several orders of magnitude. The dynamic dissipation control provides new insights for tailoring the optomechanical interaction and offers the prospect of exploring macroscopic quantum physics.