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2021 Fiscal Year Annual Research Report

Applications of Quantum Groups and Representation Theory to Quantum Information Theory

Research Project

Project/Area Number 17K18734
Research InstitutionKyoto University

Principal Investigator

COLLINS Benoit  京都大学, 理学研究科, 教授 (20721418)

Project Period (FY) 2017-06-30 – 2022-03-31
Keywordsquantum groups / quantum information
Outline of Annual Research Achievements

令和3年度は研究代表者とニューヨーク大クーラン研究所のColin McSwiggen氏とともにコンパクトLie群の(co)adjoint orbits上で一様測度に従うランダムな要素への射影を研究した。これはランダムな場合のHorn問題やランダムな場合のSchur問題, orbital corners processなどを統一的に見る視点を与えてくれた。また一般的な設定でその確率密度関数に対して積分公式を与え、その確率密度関数の性質を調べた。さらに、表現論のmultiplicity problemsとの関連を調べた。また、応用として量子情報理論で頻繁に議論されているquantum marginal problemsと呼ばれる問題で特にChristandl, Doran, Kousidis and Walter(Commun. Math. Phys. 322 (2014), 1-52)ら研究を進めている量的な解析にこの結果を応用し、restriction multiplicitiesに対する積分公式を示した。その結果を「Projections of Orbital Measures and Quantum Marginal Problems」(arXiv:2112.13908)としてまとめ専門誌へ投稿した。これらの結果を発展させ、最近Belinschi, Guionnet and Huang(arXiv:2004.07117)が示したような、ランダムHorn問題、ランダムSchur問題の大偏差原理の研究を一般化し、量子情報理論の研究へ応用できる形にできるよう研究をさらに深めている。

  • Research Products

    (16 results)

All 2022 2021 Other

All Int'l Joint Research (2 results) Journal Article (5 results) (of which Int'l Joint Research: 5 results,  Open Access: 5 results,  Peer Reviewed: 1 results) Presentation (8 results) (of which Int'l Joint Research: 8 results,  Invited: 8 results) Remarks (1 results)

  • [Int'l Joint Research] University of Waterloo(カナダ)

    • Country Name
      CANADA
    • Counterpart Institution
      University of Waterloo
  • [Int'l Joint Research] NYU(米国)

    • Country Name
      U.S.A.
    • Counterpart Institution
      NYU
  • [Journal Article] Matrix models for cyclic monotone and monotone independences2022

    • Author(s)
      Benoit Collins, Felix Leid, Noriyoshi Sakuma
    • Journal Title

      arXiv

      Volume: 2202.11666 Pages: 1--10

    • DOI

      10.48550/arXiv.2202.11666

    • Open Access / Int'l Joint Research
  • [Journal Article] Projections of Orbital Measures and Quantum Marginal Problems2021

    • Author(s)
      Benoit Collins, Colin McSwiggen
    • Journal Title

      arXiv

      Volume: 2112.13908 Pages: 1--39

    • DOI

      10.48550/arXiv.2112.13908

    • Open Access / Int'l Joint Research
  • [Journal Article] On spectral distribution of sample covariance matrices from large dimensional and large k-fold tensor products2021

    • Author(s)
      Benoit Collins, Jianfeng Yao, Wangjun Yuan
    • Journal Title

      arXiv

      Volume: 2112.05995 Pages: 1--21

    • DOI

      10.48550/arXiv.2112.05995

    • Open Access / Int'l Joint Research
  • [Journal Article] The Weingarten Calculus2021

    • Author(s)
      Benoit Collins, Sho Matsumoto, Jonathan Novak
    • Journal Title

      arXiv

      Volume: 2109.1489 Pages: 1--15

    • DOI

      10.48550/arXiv.2109.14890

    • Open Access / Int'l Joint Research
  • [Journal Article] Matrix models for $\varepsilon$-free independence2021

    • Author(s)
      Ian Charlesworth, Benoit Collins
    • Journal Title

      Arch. Math. (Basel)

      Volume: 116 Pages: 585--600

    • DOI

      10.1007/s00013-020-01569-7

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Strong convergence for random tensors2022

    • Author(s)
      Benoit Collins
    • Organizer
      conference on random tensors (online)
    • Int'l Joint Research / Invited
  • [Presentation] An overview of Random Matrix Theory and its applications2022

    • Author(s)
      Benoit Collins
    • Organizer
      FoPM Seminar Tokyo U (online)
    • Int'l Joint Research / Invited
  • [Presentation] A metric characterization of freeness2022

    • Author(s)
      Benoit Collins
    • Organizer
      QGS: Quantum Groups Seminar (online)
    • Int'l Joint Research / Invited
  • [Presentation] An introduction to Weingarten calculus2021

    • Author(s)
      Benoit Collins
    • Organizer
      the group of theoretical physics in Krakow
    • Int'l Joint Research / Invited
  • [Presentation] A metric characterization of freeness2021

    • Author(s)
      Benoit Collins
    • Organizer
      Recent Developments in Operator Algebras
    • Int'l Joint Research / Invited
  • [Presentation] On the norm convergence of multi matrix random matrix models2021

    • Author(s)
      Benoit Collins
    • Organizer
      International Workshop on Operator Theory and its Applications
    • Int'l Joint Research / Invited
  • [Presentation] On the operator norm of tensors2021

    • Author(s)
      Benoit Collins
    • Organizer
      Structured Random Matrices in Down Under: New Developments and Applications
    • Int'l Joint Research / Invited
  • [Presentation] Weingarten calculus for tensors2021

    • Author(s)
      Benoit Collins
    • Organizer
      Tensors and applications
    • Int'l Joint Research / Invited
  • [Remarks] Benoit Collins' homepage

    • URL

      https://www.math.kyoto-u.ac.jp/~collins/

URL: 

Published: 2022-12-28  

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