论文标题
通过在实时域中旋转与自旋浴的旋转的确切非马克维亚的脱碳动力学探测拓扑状态
Probing topological states through the exact non-Markovian decoherence dynamics of a spin coupled to a spin bath in real-time domain
论文作者
论文摘要
在本文中，我们探讨了探测自旋与自旋浴的探测动力学，在该旋转浴场中，自旋浴是由可控制的1D横向场iSing链给出的。具有自由端边界条件的1D横向场链等于在其拓扑阶段具有非本地主要结合状态的改良Kitaev模型。我们发现，探测旋转非马克维亚反熔动力学可以表现出自旋链的拓扑结构。通过控制ISING链上的外部磁场，我们发现了实时域中的量子相变，拓扑边缘状态和非马克维亚动力学之间的密切关系。我们还研究了该拓扑系统中相应的量子纠缠动态。
In this paper, we explore the decoherence dynamics of a probing spin coupled to a spin bath, where the spin bath is given by a controllable 1D transverse-field Ising chain. The 1D transverse-field Ising chain with free-ends boundary condition is equivalent to a modified Kitaev model with non-local Majorana bound states in its topological phase. We find that the probing spin non-Markovian decoherence dynamics can manifest the topological structure of the spin chain. By controlling the external magnetic field on the Ising chain, we find the close relationships between the quantum phase transitions, the topological edge states, and the non-Markovian dynamics in real-time domain. We also investigate the corresponding quantum entanglement dynamics in this topological system.
