arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2210.06322cond-mat.quant-gascond-mat.mes-hallquant-ph
收藏

四维原子量子霍尔系统的实现

Realization of an atomic quantum Hall system in four dimensions

Jean-Baptiste Bouhiron, Aurélien Fabre, Qi Liu, Quentin Redon, Nehal Mittal, Tanish Satoor, Raphael Lopes, Sylvain Nascimbene

AI总结:

该研究利用镝原子大自旋构建两个合成维度并结合两个空间维度,实验实现四维原子量子霍尔系统,通过量子化非线性响应、超边缘模式和非平面回旋运动验证其拓扑性质。

摘要:

现代凝聚态物理依赖拓扑概念对物质进行分类,从量子霍尔系统到拓扑绝缘体皆然。得益于合成维度,工程化系统有可能实现理论预言的、维度 D > 3 的新型拓扑态。我们报告实现了一个在四维(4D)中演化的原子量子霍尔系统,其中包含两个空间维度和两个编码在镝原子大自旋中的合成维度。通过测量量子化的电磁非线性响应并观测各向异性超边缘模式,证明了其非平庸拓扑。我们还激发了非平面回旋运动,这与 D≤3 时对应的圆形回旋运动形成对比。本工作为研究四维中推广分数量子霍尔态的强关联拓扑液体开辟了道路。

英文摘要:

Modern condensed matter physics relies on the concept of topology to classify matter, from quantum Hall systems to topological insulators. Engineered systems, benefiting from synthetic dimensions, can potentially give access to novel topological states predicted in dimensions $D > 3$. We report the realization of an atomic quantum Hall system evolving in four dimensions (4D), with two spatial dimensions and two synthetic ones encoded in the large spin of dysprosium atoms. The non-trivial topology is evidenced by measuring a quantized electromagnetic non-linear response and observing anisotropic hyperedge modes. We also excite non-planar cyclotron motion, contrasting with its circular equivalents in $D\leq3$. Our work opens to the investigation of strongly-correlated topological liquids in 4D generalizing fractional quantum Hall states.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑