论文标题
通过无序散装通道的拓扑量子传输和空间纠缠分布
Topological quantum transport and spatial entanglement distribution via disordered bulk channel
论文作者
论文摘要
我们展示了如何实施量子运输，产生纠缠状态并通过一维无序晶格中的拓扑泵送实现空间纠缠分布。我们介绍了现场疾病，以抑制高阶谐振隧道（引起波袋分散）并实现无分散的泵。现场疾病与乐队拓扑之间的相互作用可以实现强大的单向运输。我们还演示了如何通过hong-ou-mandel干扰辅助的，如何通过空间纠缠的两粒子正午状态制备。在空间分离的位点之间的分布期间，量子纠缠可以很好地保存。我们的系统铺平了一种在量子信息过程中广泛应用的方法。
We show how to implement quantum transport, generate entangled state and achieve spatial entanglement distribution via topological Thouless pumping in one-dimensional disordered lattices. We introduce the on-site disorders to suppress the high-order resonant tunneling (which cause wavepacket dispersion) and realize dispersionless Thouless pumping. The interplay between the on-site disorders and the band topology enables robust unidirectional transport. We also demonstrate how to prepare spatially entangled two-particle NOON state via Hong-Ou-Mandel interference assisted by the Thouless pumping. The quantum entanglement can be well preserved during the distribution between spatially separated sites. Our system paves a way to wide applications of topology in quantum information process.
