Probing Multi-Site Correlators in a Bose Hubbard lattice

ORAL

Abstract

Strongly-correlated quantum materials can be studied synthetically using the flexible toolset of microwave photons and superconducting circuits in the circuit QED paradigm. We build a 1D Bose-Hubbard lattice for photons where capacitively coupled transmon qubits serve as lattice sites, and the transmon anharmonicity corresponds to strong photon-photon collisions. In previous work, we employed an engineered reservoir to realize a dissipatively stabilized site and couple it to the lattice to prepare a n=1 Mott insulator. Recent improvements to our experiment will allow us to probe multi-site correlations. We discuss prospects for preparing and probing superfluids, and exploring the response of quantum fluctuations in the presence/absence of the stabilizer. These efforts can shed light on the intricate interplay of correlations, entanglement and thermalization in these driven-dissipative systems.

*We acknowledge support from the following agencies:

This work was supported by Army Research Office grant W911NF-15-1-0397
Support was provided by the Chicago MRSEC, which is funded by NSF through grant DMR-1420709.
This work was supported by MURI ARO Grant No. W911NF-15-1-0397 and Grant No. FA9550-19-1-0399.
This work was also supported by NSF Grant No. ECCS - 1542205.

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Presenters

  • Brendan Saxberg

    • University of Chicago

Authors

  • Brendan Saxberg

    • University of Chicago

  • Gabrielle Roberts

    • University of Chicago

  • Andrei Vrajitoarea

    • Princeton University
    • University of Chicago

  • Margaret Panetta

    • University of Chicago

  • Ruichao Ma

    • Purdue University
    • Department of Physics and Astronomy, Purdue University

  • David I Schuster

    • University of Chicago
    • The James Franck Institute and Department of Physics, University of Chicago
    • The James Franck Institute and Department of Physics, The University of Chicago

  • Jon Simon

    • University of Chicago