Probing the Superfluid to Mott Insulator Transition at the Single Atom Level

ORAL

Abstract

The Quantum Gas Microscope enables high fidelity detection of single atoms in a Hubbard-regime optical lattice, bringing ultracold atom research to a new, microscopic level. We investigate the Bose-Hubbard model using space- and time-resolved characterization of the number statistics across the superfluid - Mott insulator quantum phase transition. Site-resolved probing of fluctuations provides us with a sensitive local thermometer, allows us to identify microscopic heterostructures of low entropy Mott domains, and enables us to measure local quantum dynamics, revealing surprisingly fast transition timescales. Recently realized $99\%$ fidelity insulator regions will serve as an excellent starting point for studies of quantum magnetism.

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Authors

  • Eric Tai

    • Harvard University

  • Waseem Bakr

    • Harvard University

  • Ruichao Ma

    • Harvard University

  • Jonathan Simon

    • Harvard University

  • Amy Peng

    • Harvard University

  • Jonathon Gillen

    • Harvard University

  • Simon Foelling

    • Harvard University

  • Lode Pollet

    • Harvard University

  • Philipp Preiss

    • Harvard University

  • Markus Greiner

    • Harvard University