标题： 具有中性原子的现实时间反演不变拓扑绝缘体 显示英文标题

标题： Realistic Time-Reversal Invariant Topological Insulators With Neutral Atoms

摘要： 我们设计了一个实验，在碱金属原子气体中实现时间反演不变的拓扑绝缘体。 我们引入了一种原创方法，在原子芯片的近场区域合成规范场，这有效地模拟了自旋-轨道耦合的效果，并产生了量子自旋霍尔态。 我们还提出了一种可行的方案来构建尖锐的边界，其中特征性的边缘态被局域化。 我们的多带系统具有一个大的参数空间，表现出拓扑绝缘体和正常绝缘体相之间的各种量子相变。 由于其显著的通用性，冷原子系统非常适合实现物质的拓扑态，并推动拓扑量子计算的发展。 显示英文摘要

摘要： We lay out an experiment to realize time-reversal invariant topological insulators in alkali atomic gases. We introduce an original method to synthesize a gauge field in the near-field of an atom-chip, which effectively mimics the effects of spin-orbit coupling and produces quantum spin-Hall states. We also propose a feasible scheme to engineer sharp boundaries where the hallmark edge states are localized. Our multi-band system has a large parameter space exhibiting a variety of quantum phase transitions between topological and normal insulating phases. Due to their remarkable versatility, cold-atom systems are ideally suited to realize topological states of matter and drive the development of topological quantum computing.