相互作用原子三聚体阵列中非线性边态的观察

IF 23.4 Q1 OPTICS
Huiying Du, Hongxing Zhao, Yuqing Li, Yunfei Wang, Rujiang Li, Jizhou Wu, Wenliang Liu, Yiqi Zhang, Liantuan Xiao, Suotang Jia, Jie Ma
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引用次数: 0

摘要

探索拓扑和非线性之间的相互作用导致了非线性拓扑物理学的一个新兴领域,它将拓扑状态的迷人特性的研究扩展到粒子之间的相互作用不能被忽视的状态。对于超冷原子系统,虽然最近已经观察到许多奇异的拓扑状态,但非线性效应仍然难以捉摸。在这里,基于离散原子动量态的激光驱动耦合,我们合成了一个拓扑三聚体阵列,其中原子相互作用产生可调谐的非线性。我们观察到密度种群演化和参与比随着相互作用的增加而形成的非线性边缘态,而非拓扑阵列在大相互作用范围内的扩散输运。此外,我们还展示了相互作用对种群分布的影响,从初始的单点种群进化而来。我们的工作为探索超冷原子气体中出现的非线性拓扑行为开辟了道路。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Observation of nonlinear edge states in an interacting atomic trimer array

Observation of nonlinear edge states in an interacting atomic trimer array

Exploring the interplay between topology and nonlinearity leads to an emerging field of nonlinear topological physics, which extends the study of fascinating properties of topological states to a regime where interactions between the particles cannot be neglected. For ultracold atomic systems, although many exotic topological states have been recently observed, the nonlinear effect remains elusive. Here, based on the laser-driven couplings of discrete atomic momentum states, we synthesize a topological trimer array, where the atomic interactions give rise to tunable nonlinearities. We observe the formation of nonlinear edge states in the density population evolution and participation ratio with increasing interaction, in contrast to the diffusive transport in a broad interaction range in nontopological arrays. Furthermore, we show the impact of interactions on the population distribution evolved from the initialized single-site population. Our work opens the avenue for exploring emergent nonlinear topological behaviors in ultracold atomic gases.

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来源期刊
Light-Science & Applications
Light-Science & Applications 数理科学, 物理学I, 光学, 凝聚态物性 II :电子结构、电学、磁学和光学性质, 无机非金属材料, 无机非金属类光电信息与功能材料, 工程与材料, 信息科学, 光学和光电子学, 光学和光电子材料, 非线性光学与量子光学
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803
审稿时长
2.1 months
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