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Updated: Mar 8, 2026
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Optimized Fabrication Procedure for High-Quality Graphene-based Moiré Superlattice Devices
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Atomic Regional Superfluids in Two-Dimensional Moiré Time Crystals
Weijie Liang1, Weiping Zhang2,3,4,5,6, Keye Zhang1,4
1East China Normal University, Quantum Institute for Light and Atoms, Department of Physics, School of Physics, Shanghai 200062, China.
Physical Review Letters
|March 6, 2026
Summary
Researchers propose a theoretical model for a two-dimensional moiré time crystal using ultracold atoms. This work reveals novel quantum phenomena and superfluid states with moiré-scale coherence.
Area of Science:
- Quantum Physics
- Condensed Matter Physics
Background:
- Moiré physics extends beyond spatial dimensions into synthetic domains.
- Novel quantum phenomena arise in engineered moiré systems.
Purpose of the Study:
- To propose a theoretical model for a two-dimensional moiré time crystal.
- To explore quantum coherence in temporal, spatial, and spatiotemporal domains.
Main Methods:
- Theoretical modeling of ultracold atoms in a nonlattice trap.
- Periodic perturbations to induce moiré patterns.
Main Results:
- Emergence of regional superfluid states.
- Observation of moiré-scale quantum coherence across multiple domains.
- Demonstration of temporal moiré phenomena.
Conclusions:
- Provides fundamental insights into temporal moiré physics.
- Offers an alternative to traditional lattice-based moiré phase engineering.
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