Decay and recurrence of non-Gaussian correlations in a quantum many-body system

@article{Schweigler2020DecayAR,
  title={Decay and recurrence of non-Gaussian correlations in a quantum many-body system},
  author={Thomas Schweigler and Marek Gluza and Mohammadamin Tajik and Spyros Sotiriadis and Federica Cataldini and S. Ji and Frederik M{\o}ller and Jo{\~a}o Sabino and Bernhard Rauer and Jens Eisert and J{\"o}rg Schmiedmayer},
  journal={arXiv: Quantum Gases},
  year={2020}
}
Gaussian models provide an excellent effective description of a plethora of quantum many-body systems ranging from a large variety of condensed matter systems all the way to neutron stars. Gaussian states are common at equilibrium when the interactions are weak. Recently it was proposed that they can also emerge dynamically from a non-Gaussian initial state evolving under non-interacting dynamics. In this work, we present the first experimental observation of such a dynamical emergence of… 
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