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Observation of discrete time-crystalline order in a disordered dipolar many-body system
https://repo.qst.go.jp/records/48631
https://repo.qst.go.jp/records/48631de5eeb09-474a-439d-ba2d-19a8216f7090
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2018-03-26 | |||||
| タイトル | ||||||
| タイトル | Observation of discrete time-crystalline order in a disordered dipolar many-body system | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Choi, Soonwon
× Choi, Soonwon× Choi, Joonhee× Landig, Renate× Kucsko, Georg× Zhou, Hengyun× Isoya, Junichi× Jelezko, Fedor× Onoda, Shinobu× Sumiya, Hitoshi× Khemani, Vedika× von, Keyserlingk Curt× Y., Yao Norman× Demler, Eugene× D., Lukin Mikhail× 小野田 忍 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Understanding quantum dynamics away from equilibrium is an outstanding challenge in the modern physical sciences. Out of equilibrium systems can display a rich variety of phenomena, including self-organized synchronization and dynamical phase transitions. More recently, advances in the controlled manipulation of isolated many-body systems have enabled detailed studies of non-equilibrium phases in strongly interacting quantum matter; for example, the interplay between periodic driving, disorder and strong interactions has been predicted to result in exotic ‘time-crystalline’ phases, in which a system exhibits temporal correlations at integer multiples of the fundamental driving period, breaking the discrete time-translational symmetry of the underlying drive. Here we report the experimental observation of such discrete time-crystalline order in a driven, disordered ensemble of about one million dipolar spin impurities in diamond at room temperature. We observe long-lived temporal correlations, experimentally identify the phase boundary and find that the temporal order is protected by strong interactions. This order is remarkably stable to perturbations, even in the presence of slow thermalization. Our work opens the door to exploring dynamical phases of matter and controlling interacting, disordered many-body systems. |
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| 書誌情報 |
Nature 巻 543, p. 221-225, 発行日 2017-03 |
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| 出版者 | ||||||
| 出版者 | Macmillan Publishers Limited, part of Springer Nature | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1038/nature21426 | |||||
