Entanglement control in hybrid optomechanical systems

TL;DR

This paper demonstrates how pulsed laser light can significantly enhance and control entanglement between a mechanical mirror and a Bose-Einstein condensate in a hybrid optomechanical system, showing potential for advanced quantum control.

Contribution

It introduces a pulsed laser control method to increase and manipulate entanglement in a hybrid optomechanical system with a BEC and mechanical mirror.

Findings

Pulsed laser induces nearly sixfold increase in atom-mirror entanglement.

Laser modulation leads to dynamic entanglement behavior not seen with constant pumping.

Control technique improves entanglement management in hybrid quantum systems.

Abstract

We demonstrate the control of entanglement in a hybrid optomechanical system comprising an optical cavity with a mechanical end-mirror and an intracavity Bose-Einstein condensate (BEC). Pulsed laser light (tuned within realistic experimental conditions) is shown to induce an almost sixfold increase of the atom-mirror entanglement and to be responsible for interesting dynamics between such mesoscopic systems. In order to assess the advantages offered by the proposed control technique, we compare the time-dependent dynamics of the system under constant pumping with the evolution due to the modulated laser light.