Quantum entanglement enhanced in hybrid cavity–magnon optomechanical systems
Qin‐Min Wan, Yue‐Han Lin, Long‐Jiang Cong +2 more
We propose a hybrid cavity-magnon optomechanical system with mechanical nonlinearity to enhance both bipartite and tripartite entanglement. This system comprises a microwave cavity QED, a YIG sphere, and a mechanical oscillator. Our results demonstrate a significant enhancement of both bipartite and tripartite entanglement through the utilization of mechanical nonlinearity. Moreover, the entanglement prepared by this system exhibits better temperature robustness compared to the traditional system. Finally, we conduct thorough physical calculations to analyze in detail the mechanisms by which mechanical nonlinearity enhances entanglement. Additionally, we determine the position within the system that yields the maximum bipartite entanglement through calculations.
Results in Physics•Feb 5, 2024•6 citations