ArticleNature communications2024
Quantum coherence and interference of a single moiré exciton in nano-fabricated twisted monolayer semiconductor heterobilayers.
Article in Nature communications, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed.
- Direction-resolved nanoscale optical imaging with near-nanometer resolution by emerging infrared torsional force microscopy.Nature communications · 2026Article
- Inside the Microreactor: In Situ Real-Time Observation of Vapor-Liquid-Solid Growth of Monolayer TMDCs.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Optically active spins in van der Waals materials and devices.MRS bulletin · 2026Review
- Roadmap for Photonics with 2D Materials.ACS photonics · 2025Review
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Authors and funding
7 authors.
Funding
Abstract
The moiré potential serves as a periodic quantum confinement for optically generated excitons, creating spatially ordered zero-dimensional quantum systems. However, a broad emission spectrum resulting from inhomogeneity among moiré potentials hinders the investigation of their intrinsic properties. In this study, we demonstrated a method for the optical observation of quantum coherence and interference of a single moiré exciton in a twisted semiconducting heterobilayer beyond the diffraction limit of light. We observed a single and sharp photoluminescence peak from a single moiré exciton following nanofabrication. Our findings revealed the extended duration of quantum coherence in a single moiré exciton, persisting beyond 10 ps, and an accelerated decoherence process with increasing temperature and excitation power density. Moreover, quantum interference experiments revealed the coupling between moiré excitons in different moiré potential minima. The observed quantum coherence and interference of moiré exciton will facilitate potential applications of moiré quantum systems in quantum technologies.
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