Observing emergent hydrodynamics in a long-range quantum magnet

@article{Joshi2021ObservingEH,
  title={Observing emergent hydrodynamics in a long-range quantum magnet},
  author={M. Joshi and Florian Kranzl and Alexander Schuckert and Izabella Lovas and Ch. Maier and R Blatt and Michael Jason Knap and Christian F. Roos},
  journal={Science},
  year={2021},
  volume={376},
  pages={720 - 724},
  url={https://api.semanticscholar.org/CorpusID:235694285}
}
Identifying universal properties of nonequilibrium quantum states is a major challenge in modern physics. A fascinating prediction is that classical hydrodynamics emerges universally in the evolution of any interacting quantum system. We experimentally probed the quantum dynamics of 51 individually controlled ions, realizing a long-range interacting spin chain. By measuring space-time–resolved correlation functions in an infinite temperature state, we observed a whole family of hydrodynamic… 
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