Strongly interacting fluids in a Bose-Hubbard circuit: Adiabatic preparation

ORAL

Abstract

​​In recent years, circuit QED has proven to be a rich testbed for studying quantum many-body phenomena in synthetic photonic materials. We assemble a 1D Bose Hubbard lattice for microwave photons using a chain of capacitively coupled transmon qubits, with strong photon interactions mediated by the transmon anharmonicity. In this part of the talk we manipulate the on-site energy to explore themes of adiabatic state preparation: melting localized single particles in disordered lattices to quasi-momentum states in ordered lattices, preparing a strongly interacting superfluid state, studying the transition between diabatic and adiabatic regime, and quantifying the reversibility of the state preparation as a measure of adiabaticity.

*We acknowledge support from the following agencies:This work was supported by Army Research Office grant W911NF-15-1-0397Support 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

  • Gabrielle Roberts

    • University of Chicago

Authors

  • Gabrielle Roberts

    • University of Chicago

  • Andrei Vrajitoarea

    • University of Chicago

  • Brendan Saxberg

    • University of Chicago

  • Margaret G Panetta

    • University of Chicago

  • Ruichao Ma

    • Purdue University

  • David Schuster

    • University of Chicago

  • Jonathan Simon

    • University of Chicago