Quantum simulations with optical lattices: avalanche thermalization and fractional quantum Hall states

ORAL  · Invited

Abstract

Quantum simulations with optical lattices offer the unique opportunity to experimentally address outstanding problems in many-body quantum physics. Quantum gas microscopy brings this effort to the ultimate level of single particle control. I will talk about our recent work on two topics: First, I will report on the observation of quantum avalanches, which have been predicted as the leading instability of the many-body localized phase. Second, I will present our results on the realization of a fractional quantum Hall state, which we prepare through adiabatic quantum state engineering within the interacting Harper Hofstadter model. Our work gives new insights to non-equilibrium dynamics in disordered systems, and it provides a starting point for exploring other entangled topological matter with ultracold atoms.

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Publication: Léonard, J., Kim, S., Rispoli, M. et al. Probing the onset of quantum avalanches in a many-body localized system. Nat. Phys. (2023). https://doi.org/10.1038/s41567-022-01887-3

Léonard, J., Kim, S., Kwan, J. et al., Realization of a fractional quantum Hall state with ultracold atoms. arXiv:2210.10919

Presenters

  • Julian Leonard

    • TU Vienna

Authors

  • Julian Leonard

    • TU Vienna

  • Sooshin Kim

    • Harvard University

  • Joyce Kwan

    • Harvard University

  • Perrin C Segura

    • Harvard University

  • Robert Schittko

    • Harvard University

  • Matthew Rispoli

    • Harvard University

  • Alexander Lukin

    • Harvard University
    • QuEra Computing Inc.

  • Eugene Demler

    • ETH Zürich
    • ETHZ

  • Dries Sels

    • NYU

  • Fabian Grusdt

    • LMU Munich
    • LMU München

  • Cecile Repellin

    • LPMMC, CNRS

  • Nathan Goldman

    • Universite libre de Bruxelles

  • Markus Greiner

    • Harvard University