Energy-Resolved Information Scrambling in Energy-Space Lattices
arXiv:2009.02361 · doi:10.1103/PhysRevLett.126.070601
Abstract
Weakly interacting Fermi gases simulate spin-lattices in energy-space, offering a rich platform for investigating information spreading and spin coherence in a large many-body quantum system. We show that the collective spin vector can be determined as a function of energy from the measured spin density, enabling general energy-space resolved protocols. We measure an out-of-time-order correlation function in this system and observe the energy dependence of the many-body coherence.
arXiv commentNote revised title and completely rewritten text
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