Observation of discrete time-crystalline order in a disordered dipolar many-body system

@article{Choi2017ObservationOD,
  title={Observation of discrete time-crystalline order in a disordered dipolar many-body system},
  author={Soonwon Choi and Joonhee Choi and Renate Landig and Georg Kucsko and Hengyun Zhou and Junichi Isoya and Fedor Jelezko and Shinobu Onoda and Hitoshi Sumiya and Vedika Khemani and C. W. von Keyserlingk and Norman Y. Yao and Eugene A. Demler and Mikhail D. Lukin},
  journal={Nature},
  year={2017},
  volume={543},
  pages={221-225}
}
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… 
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