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Exploring relativistic quantum chemistry with 'quantum inspired' algorithms

Research Project

Project/Area Number 21K18933
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 32:Physical chemistry, functional solid state chemistry, and related fields
Research InstitutionOsaka University

Principal Investigator

Mizukami Wataru  大阪大学, 量子情報・量子生命研究センター, 准教授 (10732969)

Project Period (FY) 2021-07-09 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2022: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2021: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Keywords量子インスパイアードアルゴリズム / クリフォード回路 / スタビライザー / 相対論的量子化学 / Fermionic Shadows / スタビライザー状態 / Clifford回路 / CAFQA / 機械学習波動関数 / フェルミオン影像法 / 制限ボルツマンマシン / 量子インスパイアード / 変分モンテカルロ / 量子インスパイアド / ニューラルネット / 第一原理計算
Outline of Research at the Start

本研究では近年発展の著しい量子アルゴリズムを応用した古典アルゴリズムを用ることで、重原子を含む系にあらわれうる複雑な量子状態のコンパクトな記述を可能とする方法論の確立を目指す。

Outline of Final Research Achievements

We have worked on developing electronic state theories for relativistic quantum chemistry using "quantum-inspired" algorithms that utilize insights from quantum information science. Focusing on two approaches, namely the use of neural network quantum states and stabilizer states, we worked on implementing neural network wave functions using restricted Boltzmann machines and quantum chemistry calculations using Clifford circuits. Additionally, as derivative research, we proposed new theoretical approaches such as MRCI calculations using Fermionic Shadows and the development of the TIC technique. These advancements contribute to the progress of relativistic quantum chemistry by introducing novel algorithmic techniques inspired by quantum information science, laying the foundation for more efficient and accurate simulations of complex quantum systems involving heavy elements.

Academic Significance and Societal Importance of the Research Achievements

本研究の意義は、量子情報科学の知見を活用した新たな理論的アプローチを相対論的量子化学計算に持ち込むことを提案した点にある。ニューラルネットワーク量子状態やスタビライザー状態を用いた手法は、電子配置が複雑な系に有効であると考えられ、重元素を含む分子の複雑な電子状態計算を切り開く可能性を持っている。フェルミオン影像法を用いたMRCIやTIC技術などの派生研究は、いずれも基礎的な研究であるが、前者は量子計算における測定の問題を考える好事例であり、後者は実用的な相対論的量子化学計算につながるものとなっている。一連の成果は、将来的に重元素を含む材料の精密なシミュレーションに貢献するものと期待される。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (8 results)

All 2024 2023 2022 Other

All Int'l Joint Research (1 results) Journal Article (6 results) (of which Peer Reviewed: 2 results) Presentation (1 results)

  • [Int'l Joint Research] King’s College London(英国)

    • Related Report
      2023 Annual Research Report
  • [Journal Article] Two-component transformation inclusive contraction scheme in the relativistic molecular orbital theory2024

    • Author(s)
      Tsuzuki Ippei、Inoue Nobuki、Watanabe Yoshihiro、Nakano Haruyuki
    • Journal Title

      Chemical Physics Letters

      Volume: 840 Pages: 141146-141146

    • DOI

      10.1016/j.cplett.2024.141146

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Solvent Distribution Effects on Quantum Chemical Calculations with Quantum Computers2024

    • Author(s)
      Yoshida Yuichiro、Mizukami Wataru、Yoshida Norio
    • Journal Title

      Journal of Chemical Theory and Computation

      Volume: 20 Issue: 5 Pages: 1962-1971

    • DOI

      10.1021/acs.jctc.3c01189

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Universal neural network potentials as descriptors: Towards scalable chemical property prediction using quantum and classical computers2024

    • Author(s)
      Shiota Tomoya, Ishihara Kenji, Mizukami Wataru
    • Journal Title

      arXiv

      Volume: 2402.18433

    • Related Report
      2023 Annual Research Report
  • [Journal Article] Balancing error budget for fermionic k-RDM estimation2023

    • Author(s)
      Takemori Nayuta, Teranishi Yusuke, Mizukami Wataru, Yoshioka Nobuyuki
    • Journal Title

      arXiv

      Volume: 2312.17452

    • Related Report
      2023 Annual Research Report
  • [Journal Article] ADAPT-QSCI: Adaptive Construction of Input State for Quantum-Selected Configuration Interaction2023

    • Author(s)
      Nakagawa Yuya O., Kamoshita Masahiko, Mizukami Wataru, Sudo Shotaro, Ohnishi Yu-ya
    • Journal Title

      arXiv

      Volume: 2311.01105

    • Related Report
      2023 Annual Research Report
  • [Journal Article] Coupled cluster method tailored with quantum computing2023

    • Author(s)
      Erhart Luca, Yoshida Yuichiro, Khinevich Viktor, Mizukami Wataru
    • Journal Title

      arXiv

      Volume: 2312.11012

    • Related Report
      2023 Annual Research Report
  • [Presentation] フェルミオン影像法によるk-RDM推定を用いた量子部分空間展開法2022

    • Author(s)
      竹森 那由多, 吉岡 信行, 水上 渉
    • Organizer
      第47回量子情報技術研究会 (QIT47)
    • Related Report
      2022 Research-status Report

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Published: 2021-07-13   Modified: 2025-01-30  

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