Towards large-scale superconducting quantum annealers: 2.5D packaging technology and application specific architecture

ORAL

Abstract

Quantum annealing is a promising technique which leverages quantum mechanics to solve hard combinatorial optimization problems. D-Wave Systems Inc. is the first company to commercialize superconducting quantum annealer in 2011 and ship a new machine with 2000 qubits in 2017. However, integration of larger number of qubits as well as improvement of qubit coherence are required for practical applications. In this talk we will overview our technological integration scheme for large-scale superconducting quantum annealers in AIST. The scalability is achieved by QUIP (QUbit, Interposer and Package substrate) structure, which is based on our multi-layer fabrication and multi-chip 2.5D packaging technology, e.g., Through Silicon Via (TSV) and flip-chip bonding. We have also developed an Application Specific Annealing Computing (ASAC) architecture in order to increase the available hardware budget and reduces the cost and time for R&D. In addition, we will show our theoretical researches on superconducting quantum annealers.

*This presentation is based on results obtained from a project commissioned by the New Energy and Industrial Technology Development Organization (NEDO).

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Presenters

  • Shiro Kawabata

    • National Institute of Advanced Industrial Science and Technology (AIST)

Authors

  • Shiro Kawabata

    • National Institute of Advanced Industrial Science and Technology (AIST)

  • Kazuhiko Endo

    • National Institute of Advanced Industrial Science and Technology (AIST)

  • Go Fujii

    • National Institute of Advanced Industrial Science and Technology (AIST)

  • Mutsuo Hidaka

    • National Institute of Advanced Industrial Science and Technology (AIST)

  • Masakazu Hioki

    • National Institute of Advanced Industrial Science and Technology (AIST)

  • Kentaro Imafuku

    • National Institute of Advanced Industrial Science and Technology (AIST)

  • Kunihiro Inomata

    • National Institute of Advanced Industrial Science and Technology (AIST)
    • AIST

  • Vasilios Karanikolas

    • National Institute of Advanced Industrial Science and Technology (AIST)

  • Toshihiro Katashita

    • National Institute of Advanced Industrial Science and Technology (AIST)

  • Katsuya Kikuchi

    • National Institute of Advanced Industrial Science and Technology (AIST)

  • Hanpei Koike

    • National Institute of Advanced Industrial Science and Technology (AIST)

  • Satoshi Kohjiro

    • National Institute of Advanced Industrial Science and Technology (AIST)

  • Masaaki Maezawa

    • National Institute of Advanced Industrial Science and Technology (AIST)

  • Kazumasa Makise

    • National Institute of Advanced Industrial Science and Technology (AIST)

  • Shuichi Nagasawa

    • National Institute of Advanced Industrial Science and Technology (AIST)

  • Hiroshi Nakagawa

    • National Institute of Advanced Industrial Science and Technology (AIST)

  • Tadashi Nakagawa

    • National Institute of Advanced Industrial Science and Technology (AIST)

  • Toshihiro Sekigawa

    • National Institute of Advanced Industrial Science and Technology (AIST)

  • Masahiro Ukibe

    • National Institute of Advanced Industrial Science and Technology (AIST)

  • Chiharu Watanabe

    • National Institute of Advanced Industrial Science and Technology (AIST)
    • AIST

  • Takahiro Yamada

    • National Institute of Advanced Industrial Science and Technology (AIST)

  • Hirotake Yamamori

    • National Institute of Advanced Industrial Science and Technology (AIST)