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Realization of an atomic quantum Hall system in four dimensions by Bouhiron, Jean-Baptiste; Fabre, Aurélien; Liu, Qi; Redon, Quentin; Mittal, Nehal; Satoor, Tanish; Lopes, Raphael; Nascimbene, Sylvain is a scholarly article available to read on EtoBox.

What is Realization of an atomic quantum Hall system in four dimensions about?

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.

Author

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

Published

2022

Language

EN