Lü Rongguang, Zhan Huiping, Kong Deyi, Wang Fei
Opt Lett. 2024 Dec 15;49(24):7032-7035. doi: 10.1364/OL.544015.
We propose a scheme to generate nonreciprocal entanglement and one-way steering between two distant ferrimagnetic microspheres in waveguide electromagnonics, where the magnon modes of two yttrium iron garnet (YIG) spheres are simultaneously coupled to each other through coherent and dissipative interactions. By matching the coherent interaction with its corresponding dissipative counterpart, unidirectional coupling between two magnon modes can be realized, and then in the presence of significant Kerr nonlinearities, we can obtain strong entanglement and one-way steering. Depending on the direction of the microwave propagation, the long-distance entanglement and steering can be generated nonreciprocally. Our work presents a novel, to the best of our knowledge, approach for generating nonreciprocal quantum correlations, which may find potential applications in chiral quantum networking.
我们提出了一种在波导电磁学中两个远距离亚铁磁微球之间产生非互易纠缠和单向操控的方案，其中两个钇铁石榴石（YIG）球的磁振子模式通过相干和耗散相互作用同时相互耦合。通过使相干相互作用与其相应的耗散对应物相匹配，可以实现两个磁振子模式之间的单向耦合，然后在存在显著克尔非线性的情况下，我们可以获得强纠缠和单向操控。根据微波传播的方向，可以非互易地产生长距离纠缠和操控。据我们所知，我们的工作提出了一种产生非互易量子关联的新颖方法，这可能在手性量子网络中找到潜在应用。
