论文标题
模拟2D自旋 - 光谱晶体网络中的高阶拓扑阶段
Simulation of higher-order topological phases in 2D spin-phononic crystal networks
论文作者
论文摘要
我们提出并分析了一种有效的方案，以模拟物质的高阶拓扑阶段，以二维（2D）自旋 - 光谱晶体网络。我们表明，通过经过专门设计的周期性驾驶，可以选择性地控制和增强双方硅接面（SIV）中心阵列，从而获得手性对称性保护的自旋旋转耦合。更重要的是，Floquet Engineering Spin-Spin相互作用支持与拓扑不变性相关的丰富量子阶段。在动量空间中，我们分析和模拟一维系统和二维系统的拓扑非平地特性，并表明在适当的周期性驾驶参数下可以实现高阶拓扑阶段。作为量子信息处理中的应用，我们研究了通过拓扑保护边缘状态的稳健量子态转移。这项工作开辟了研究量子声学的新前景，并提供了一个实验可行的平台，用于研究物质的高阶拓扑阶段。
We propose and analyse an efficient scheme for simulating higher-order topological phases of matter in two dimensional (2D) spin-phononic crystal networks. We show that, through a specially designed periodic driving, one can selectively control and enhance the bipartite silicon-vacancy (SiV) center arrays, so as to obtain the chiral symmetry-protected spin-spin couplings. More importantly, the Floquet engineering spin-spin interactions support rich quantum phases associated with topological invariants. In momentum space, we analyze and simulate the topological nontrivial properties of the one- and two-dimensional system, and show that higher-order topological phases can be achieved under the appropriate periodic driving parameters. As an application in quantum information processing, we study the robust quantum state transfer via topologically protected edge states. This work opens up new prospects for studying quantum acoustic, and offers an experimentally feasible platform for the study of higher-order topological phases of matter.
