Entanglement of nanomechanical oscillators and two-mode fields induced by atomic coherence

TL;DR

This paper presents a scheme using three-level cascade atoms to generate entanglement between nanomechanical oscillators and two-mode fields, effective even in bad cavity conditions, with entanglement influenced by atomic coherence and oscillation frequency.

Contribution

It introduces a novel method to entangle mechanical and optical systems via atomic coherence, effective in challenging cavity regimes.

Findings

Entanglement achieved between mirrors and two-mode fields.

Output entanglement depends on atomic coherence and oscillation frequency.

Effective entanglement in bad cavity limit.

Abstract

We propose a scheme via three-level cascade atoms to entangle two optomechanical oscillators as well as two-mode fields. We show that two movable mirrors and two-mode fields can be entangled even for bad cavity limit. We also study entanglement of the output two-mode fields in frequency domain. The results show that the frequency of the mirror oscillation and the injected atomic coherence affect the output entanglement of the two-mode fields.