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Atomic Regional Superfluids in two-dimensional Moiré Time Crystals
Weijie Liang, Weiping Zhang, Keye Zhang·April 9, 2025·DOI: 10.1103/thvw-pdtd
cond-mat.quant-gasQuantum Physics
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Abstract
Moiré physics has transcended spatial dimensions, extending into synthetic domains and enabling novel quantum phenomena. We propose a theoretical model for a two-dimensional (2D) Moiré time crystal formed by ultracold atoms, induced by periodic perturbations applied to a non-lattice trap. Our analysis reveals the emergence of regional superfluid states exhibiting moiré-scale quantum coherence across temporal, spatial, and spatiotemporal domains. This work provides fundamental insights into temporal moiré phenomena and presents an alternative pathway to engineer spatial moiré phases without requiring twisted multilayer lattices.