Flat Landau levels can be achieved in a 3D-printed acoustic lattice (right) of unit cells (left) with two square acoustic cavities. Selected for an Editors’ Suggestion.

From the article:

Ideal Flat and Resolved SU(3) Landau Levels in Three Dimensions
Mian Peng, Qiang Wei, Jiale Yuan, Da-Wei Wang, Mou Yan, Han Cai, and Gang Chen
Phys. Rev. Lett. 134, 116601 (2025)

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