Flexible generation of optomagnonic quantum entanglement and quantum coherence difference in double-cavity-optomagnomechanical system

TL;DR

This paper proposes a flexible scheme to generate and control optomagnonic quantum entanglement and coherence in a double-cavity system, enhancing quantum network connectivity and magnon-light interactions.

Contribution

It introduces a novel method for tunable generation of quantum entanglement and coherence in optomagnomechanical systems, with detailed analysis of parameter effects and stability.

Findings

The scheme enables flexible control of bipartite and tripartite entanglement.

Quantum coherence difference can be manipulated independently.

System stability is maintained under various parameter settings.

Abstract

Quantum entanglement and quantum coherence generated from the optomagnomechanical system are important resources in quantum information and quantum computation. In this paper, a scheme for flexibly generating optomagnonic quantum entanglement and quantum coherence difference is proposed, based on a double-cavity-optomagnomechanical system. The parameter dependencies of the bipartite optomagnonic entanglement, the genuine tripartite optomagnonic entanglement, the quantum coherence difference, and the stability of the system, are investigated intensively. The results show that this scheme endows the magnon more flexibility to choose different mechanisms, under the condition of maintaining the system stable. This work is valuable for connecting different nodes in quantum networks and manipulating the magnon states with light in the future.