Extracted work as measure of entanglement in optomechanics

TL;DR

This paper explores the relationship between quantum entanglement and work extraction in two optomechanical systems, analyzing entanglement dynamics and quantum correlations to understand energy transfer and quantum information processing.

Contribution

It introduces a detailed analysis of entanglement and work extraction in two distinct optomechanical setups, linking quantum correlations with energy transfer.

Findings

Entanglement dynamics are quantified using logarithmic negativity.

Work extraction varies with system parameters and relates to entanglement.

Quantum correlations influence energy transfer in hybrid optomechanical systems.

Abstract

In this work, we investigate quantum entanglement and work extraction in two distinct optomechanical systems. The first system consists of two spatially separated Fabry-P\'erot cavities driven by squeezed light in the resolved-sideband regime, while the second system comprises a laser field incident on a vibrating mirror. We analyze the entanglement dynamics between optical and mechanical modes, as well as quantum correlations in a mixed optomechanical bipartite system (optic-optic mode) mediated by radiation pressure. Using logarithmic negativity as a measure, we quantify the entanglement evolution in both optic-optic and mirror-mirror bipartite subsystems. Furthermore, we show how three distinct types of extractable work vary with system parameters and examine their relationship with entanglement. Our results highlight the relationship between quantum correlations and extracted work in optomechanical system, offering insights for quantum information processing and energy transfer in hybrid systems.