Quantum simulation of molecular vibronic spectra on a superconducting bosonic processor: Part II

ORAL

Abstract

A promising and practical application of quantum hardware is the simulation of quantum chemistry. As one example, a programmable bosonic machine can be configured to obtain Franck-Condon (FC) factors associated with molecular vibronic spectra [1]. Implementing such an algorithm in the linear optical domain is experimentally challenging due to the imperfect initialization and detection of optical photons. In this talk, we present a superconducting bosonic processor that combines high fidelity non-Gaussian state preparation, a complete set of Gaussian operations, and a novel single-shot photon number resolving measurement scheme. We utilize this processor to extract FC factors for photoelectron processes in H2O, O3, NO2, and SO2, including those from vibrational excited states. We exemplify the efficiency of this approach by comparing the resources needed to perform our simulation with that of a qubit-based architecture.

[1] Huh et al., Nature Photonics, 9 615-620 (2015)

*US ARO Grants (W911NF-18-1-0212, W911NF-16-1-0349)
NSF Grants CHE-1900160 (VSB), CHE-1464957 (PHV), and DMR-1609326 (SMG)
NSF Center for Ultracold Atoms (ILC)
Packard Foundation (LJ)

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Presenters

  • Christopher Wang

    • Yale University

Authors

  • Christopher Wang

    • Yale University

  • Jacob Curtis

    • Yale University

  • Brian Lester

    • Yale University
    • Atom Computing, Inc

  • Yaxing Zhang

    • Yale University

  • Yvonne Gao

    • Natl Univ of Singapore
    • Yale University

  • Jessica Freeze

    • Yale University

  • Victor Batista

    • Yale University

  • Patrick Henry Vaccaro

    • Yale University

  • Isaac Chuang

    • Massachusetts Institute of Technology

  • Luigi Frunzio

    • Yale University
    • Department of Applied Physics, Yale University
    • Departments of Applied Physics and Physics, Yale University

  • Liang Jiang

    • Pritzker School of Molecular Engineering, University of Chicago
    • Yale University
    • Department of Molecular Engineering, University of Chicago

  • Steven Girvin

    • Yale University
    • Department of Physics and Applied Physics, Yale University
    • Department of Physics, Yale University
    • Yale Quantum Institute, Yale University

  • Robert Schoelkopf

    • Yale University
    • Department of Applied Physics, Yale University
    • Departments of Applied Physics and Physics, Yale University