论文标题
纠缠增强和单向转向在PT-对称腔宏伟学中
Entanglement enhanced and one-way steering in PT -symmetric cavity magnomechanics
论文作者
论文摘要
我们研究了在平均时间（PT-）对称腔雄伟系统中的纠缠和量子转向的创建。腔与光子磁子之间存在磁性偶极子相互作用，并且也存在磁性相互作用，该相互作用是由该系统中的Phononmagnon耦合诱导的。通过将蓝色驱动微波炉引入系统，与常规空腔雄伟宏伟的雄伟系统（损失损失系统）相比，使用PT-对称性的系统的两部分纠缠显着增强。此外，可以在不间断的PT-PT-MEMEMEMEMEMEMEMEMEMEMEMEMEMEMEMEMEMEMEMEMEMEMEMEMEMEMEMEMIME中获得镁 - 音波和光子phonon模式之间的单向量子转向。证明了稳定性的边界，这表明稳态解决方案在增益和损耗系统中更稳定。这项工作开辟了一条途径，以探索巨大机械系统中的量子纠缠和转向的特征，该系统可能在量子状态工程和量子信息中具有潜在的应用。
We study creation of entanglement and quantum steering in a parity-time- (PT -) symmetric cavity magnomechanical system. There is magnetic dipole interaction between the cavity and photon-magnon, and there is also magnetostrictive interaction which is induced by the phononmagnon coupling in this system. By introducing blue-detuned driving microwave field to the system, the bipartite entanglement of the system with PT -symmetry is significantly enhanced versus the case in the conventional cavity magnomechanical systems (loss-loss systems). Moreover, the one-way quantum steering between magnon-phonon and photon-phonon modes can be obtained in the unbroken-PT -symmetric regime. The boundary of stability is demonstrated and this show that the steady-state solutions are more stable in the gain and loss systems. This work opens up a route to explore the characteristics of quantum entanglement and steering in magnomechanical systems, which might have potential applications in quantum state engineering and quantum information.
