Gently modulating opto-mechanical systems

TL;DR

This paper presents a new approach to achieve significant mechanical squeezing and entanglement in opto-mechanical systems using mild amplitude modulation of light, without feedback or squeezed inputs, feasible with current technology.

Contribution

It introduces a framework for quantum squeezing and entanglement in opto-mechanical systems driven by amplitude-modulated light without feedback or squeezed light.

Findings

Achieves large mechanical squeezing without feedback.

Demonstrates entanglement dynamics in classical quasi-periodic states.

Shows complex phase space behavior of light and mechanical modes.

Abstract

We introduce a framework of opto-mechanical systems that are driven with a mildly amplitude modulated light field, but that are not subject to classical feedback or squeezed input light. We find that in such a system one can achieve large degrees of squeezing of a mechanical micromirror signifying quantum properties of opto-mechanical systems - without the need of any feedback and control, and within parameters reasonable in experimental settings. Entanglement dynamics is shown of states following classical quasi-periodic orbits in their first moments. We discuss the complex time dependence of the modes of a cavity-light field and a mechanical mode in phase space. Such settings give rise to certifiable quantum properties within experimental conditions feasible with present technology.