Xing Yan, Qi Lu, Cao Ji, Wang Dong-Yang, Bai Cheng-Hua, Cui Wen-Xue, Wang Hong-Fu, Zhu Ai-Dong, Zhang Shou
Opt Express. 2018 Jun 25;26(13):16250-16264. doi: 10.1364/OE.26.016250.
Experimental realization of the Kitaev model is a greatly attractive topic due to the potential applications to build robust qubits against decoherence in topological quantum computation. In this work, we investigate the charged whispering-gallery microcavity array model and simulate the normal Kitaev chain under this mechanism in the first time. We find that the system reveals profound connections with the normal Kitaev chain and its some derivatives, and the topological property of the system depends on effective optomechanical coupling strength deeply. In optomechanically induced Kitaev topologically nontrivial phase, compared to the normal Kitaev chain in the Majorana basis, the novel and distinct structure of charged whispering-gallery microcavity array model leads to controllable photonic and phononic edge localization. Furthermore, we also simulate the extended Kitaev chain and show that two topologically different nontrivial phases of the system allow one to realize more freewheeling controllable photonic and phononic edge localization. Our model offers an alternative approach to correlate with other more complicated one-dimensional noninteracting spinless topological systems relevant to the p-wave superconducting pairing.
由于在拓扑量子计算中构建抗退相干的稳健量子比特方面具有潜在应用，基塔耶夫模型的实验实现是一个极具吸引力的课题。在这项工作中，我们研究了带电回音壁微腔阵列模型，并首次在该机制下模拟了常规基塔耶夫链。我们发现该系统与常规基塔耶夫链及其一些衍生物有着深刻的联系，并且系统的拓扑性质深度依赖于有效的光机械耦合强度。在光机械诱导的基塔耶夫拓扑非平凡相中，与马约拉纳基下的常规基塔耶夫链相比，带电回音壁微腔阵列模型新颖独特的结构导致了可控的光子和声子边缘局域化。此外，我们还模拟了扩展的基塔耶夫链，并表明系统的两个拓扑不同的非平凡相使人们能够实现更自由可控的光子和声子边缘局域化。我们的模型提供了一种替代方法，用于关联与p波超导配对相关的其他更复杂的一维无相互作用无自旋拓扑系统。
