Progress Towards Quantum Annealer v2.0 I: Hardware

ORAL

Abstract

We report on Google Quantum A.I. Lab’s progress in building a quantum annealer. Our annealer architecture is constructed from CPW-based flux qubits, integrated with airbridge crossovers and flip chip technology. With individual components such as qubits and tunable couplers fully characterized, we demonstrate efficient implementation of small-sized graphs consisting of multiple qubits. We investigate the dependence of system performance on various aspects such as graph topology, annealing trajectories, etc. In particular, we report on a small scale demonstration of how reduced dissipation and optimized annealing schedules can improve annealer performance.

Presenters

  • Yu Chen

    • Google Inc - Santa Barbara
    • Google Inc.

Authors

  • Yu Chen

    • Google Inc - Santa Barbara
    • Google Inc.
  • Chris Quintana

    • Google Inc - Santa Barbara
    • Google Inc.
  • Dvir Kafri

    • Google Inc.
  • Ben Chiaro

    • Physics, Univ of California - Santa Barbara
    • UC Santa Barbara
    • Univ of California - Santa Barbara
    • UCSB
    • University of California - Santa Barbara
    • Physics, University of California, Santa Barbara
  • Andrew Dunsworth

    • Physics, Univ of California - Santa Barbara
    • UC Santa Barbara
    • Univ of California - Santa Barbara
    • UCSB
    • University of California - Santa Barbara
    • Physics, University of California, Santa Barbara
  • Brooks Foxen

    • UC Santa Barbara
    • Univ of California - Santa Barbara
    • University of California - Santa Barbara
    • Physics, University of California, Santa Barbara
  • James Wenner

    • Physics, Univ of California - Santa Barbara
    • Univ of California - Santa Barbara
    • UCSB
    • University of California - Santa Barbara
    • Physics, University of California, Santa Barbara
  • John Martinis

    • Google
    • Google Inc - Santa Barbara
    • Google Inc.
    • UC Santa Barbara and Google
  • Hartmut Neven

    • Google Inc.