Breakthrough Tracker record
A discrete time quasicrystal was observed in a driven Rydberg-atom ensemble
A quasiperiodically driven, dissipative ensemble of strongly interacting Rydberg atoms produced robust subharmonic responses at multiple incommensurate frequencies. The experiment mapped the resulting discrete-time-quasicrystal phase and tested its rigidity against changes in radio-frequency intensity and laser detuning.
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- Stable ID
physics-discrete-time-quasicrystal-rydberg-gas-2026- Revision
physics-discrete-time-quasicrystal-rydberg-gas-2026.v1- Field
- Physics · Quantum many-body dynamics and non-equilibrium matter
- Evidence
- Tier 1 · Peer reviewed: Yes
- Record state
- Current · Peer-reviewed result
- Last checked
AI role
No AI role was disclosed in the inspected article.
Record details
- Problem or result
- Experimental realization and phase mapping of discrete time-quasicrystalline order in a Rydberg-atom platform
- Authors
- Dong-Yang Zhu, Zheng-Yuan Zhang, Qi-Feng Wang, Yu Ma, Tian-Yu Han, Chao Yu, Qiao-Qiao Fang, Shi-Yao Shao, Qing Li, Ya-Jun Wang, Jun Zhang, Han-Chao Chen, Xin Liu, Jia-Dou Nan, Yi-Ming Yin, Li-Hua Zhang, Guang-Can Guo, Bang Liu, Dong-Sheng Ding and Bao-Sen Shi
- Institutions
- Laboratory of Quantum Information and Anhui Province Key Laboratory of Quantum Network, University of Science and Technology of China
- Result date
- Published July 29, 2026; preprint first posted September 25, 2025
Why it matters
The controlled atomic platform connects quasiperiodic driving, finite Abelian symmetry and rigidity in a directly mapped non-equilibrium phase, expanding the experimental toolkit for studying time-translation symmetry breaking.
Limits
This is not the first reported time quasicrystal, nor an equilibrium ground-state crystal. It is a platform-specific driven-dissipative result, and the journal currently labels the article an unedited early-access version that may still receive copy-editing corrections.
Sources
- Primary: Zhu and colleagues, Observation of discrete time quasicrystal in Rydberg atomic gases
- Preprint: Author manuscript and version history for the Rydberg time-quasicrystal experiment
- Open data: Zenodo repository for the experiment’s source data
Correction and revision history
- 2026-07-29 — Added after peer-reviewed publication, with the Rydberg-platform novelty separated from earlier time-quasicrystal observations and the journal’s early-access notice retained.
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