论文标题
手性边缘动力学和量子霍尔物理学在合成维度中具有原子埃尔比姆·玻色内斯坦冷凝水
Chiral edge dynamics and quantum Hall physics in synthetic dimensions with an atomic erbium Bose-Einstein condensate
论文作者
论文摘要
量子霍尔物理学是针对物质和人造系统的研究核心，例如冷原子气体，具有非平凡的拓扑顺序。我们通过将原子波袋同时转移到一个由一个空间形成的二维状态空间中实现的合成厅系统的相反边缘来报告观察手性边缘电流的观察，该边缘是一个空间和一个合成维度形成的二维状态空间，在ERBIUM原子的J = 6电子旋转中编码。为了表征该系统，确定了最低的原子玻色子凝结物的大厅漂移。通过确定局部Chern标记来验证拓扑特性，并在进行低覆盖的激发后，分别在散装和边缘中观察到了回旋轨道和跳过轨道。未来的前景包括对冷原子系统中新型拓扑阶段的研究。
Quantum Hall physics is at the heart of research on both matter and artificial systems, such as cold atomic gases, with non-trivial topological order. We report on the observation of a chiral edge current by transferring atomic wavepackets simultaneously to opposite edges of a synthetic Hall system realized in the two-dimensional state space formed by one spatial and one synthetic dimension encoded in the J=6 electronic spin of erbium atoms. To characterize the system, the Hall drift of the employed atomic Bose-Einstein condensate in the lowest Landau-like level is determined. The topological properties are verified by determining the local Chern marker, and upon performing low-lying excitations both cyclotron and skipping orbits are observed in the bulk and edges respectively. Future prospects include studies of novel topological phases in cold atom systems.
