Quantum optical levitation of a mirror

TL;DR

This paper develops a quantum theoretical model for a levitating mirror within a Fabry-Perot cavity, revealing stable states, strong entanglement, and squeezing effects relevant for quantum optomechanics.

Contribution

It introduces a quantum model of a levitating mirror in a cavity, analyzing its stability, entanglement, and squeezing, which advances understanding of quantum behavior in levitated optomechanical systems.

Findings

Stable blue detuned steady-state identified

Strong entanglement (15-20 ebits) demonstrated

Squeezing observed in mirror position

Abstract

While the levitating mirror has seen renewed interest lately, relatively little is known about its quantum behaviour. In this paper we present a quantum theory of a one dimensional levitating mirror. The mirror forms a part of a Fabry-Perot cavity where the circulating intracavity field supports the mirror through radiation pressure alone. We find a blue and red detuned steady-state of which only the blue detuned solution with damping on the mirror and cavity is stable. We find strong entanglement (15-20 ebits) between the mirror output and cavity output and squeezing in the mirror position.