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

  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},
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… 
Mechanisms for the emergence of Gaussian correlations
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Detection of arbitrary quantum correlations via synthesized quantum channels
Ze Wu,1, 2, a) Ping Wang,3, 4, a) Tianyun Wang,1, 2 Yuchen Li,1, 2 Ran Liu,1, 2 Yuquan Chen,1, 2 Xinhua Peng,1, 2, b) Ren-Bao Liu,4, 5, 6, c) and Jiangfeng Du1, 2 1)CAS Key Laboratory of Microscale
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Generalized Hydrodynamics (GHD) has recently been devised as a method to solve the dynamics of integrable quantum many-body systems beyond the mean-field approximation. In its original form, a major
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We study a quantum many-body variant of the parametric oscillator, by investigating the driven sine-Gordon model with a modulated tunnel coupling via a semi-classical Truncated Wigner Approximation
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Si-Cong Ji, Thomas Schweigler, 2 Mohammadamin Tajik, Federica Cataldini, João Sabino, 3, 4 Frederik S. Møller, Sebastian Erne, and Jörg Schmiedmayer ∗ Vienna Center for Quantum Science and Technology
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Time-reversed evolution has substantial implications in physics, including applications in refocusing of classical waves or spins and fundamental studies such as quantum information scrambling. In
Quantum nonlinear spectroscopy of single nuclear spins
Jonas Meinel1*, Vadim Vorobyov1*, Ping Wang2,3*, Boris Yavkin1, Mathias Pfender1, Hitoshi Sumiya4, Shinobu Onoda5, Junichi Isoya6, Ren-Bao Liu2†, J. Wrachtrup1,7 † 1. 3rd Institute of Physics,
Emergence of gaussianity in the thermodynamic limit of interacting fermions
Systems of interacting fermions can give rise to ground states whose correlations become effectively free-fermion-like in the thermodynamic limit, as shown by Baxter for a class of integrable models


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