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Journal of Modern Optics

Enhancement of the entanglement of two output fields via an atom-assisted optomechanical system without adiabatic elimination

Yi Lu, Zheng-Hong Li, Xihua Yang

Published Jun 17, 2025• 0 citations
Publisher

Abstract

The entanglement of two output fields generated by a hybrid system consisting of an ensemble of Λ-type three-level atoms placed inside a conventional cavity optomechanical system is investigated without adiabatic elimination of the atomic operators. We show that the entanglement between two output fields can be enhanced significantly by introducing a suitable number of atoms in the cavity optomechanical system as compared to the case without atoms under realistic experimental conditions. A high-finesse cavity is more favourable than a low-finesse one for entangling two output fields in such a hybrid system. In addition, keeping a low dephasing rate of the atomic lower doublet and a low-temperature environment of the movable mirror are crucial to the generation of entanglement between two output fields. This hybrid system provides new perspectives for quantum interfaces and may find potential applications for quantum information processing with continuous variables.

DOI
10.1080/09500340.2025.2520416

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