• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2020 Fiscal Year Annual Research Report

Random Matrix Theory and applications to Quantum Information Theory

Research Project

Project/Area Number 17H04823
Research InstitutionKyoto University

Principal Investigator

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

Project Period (FY) 2017-04-01 – 2021-03-31
Keywordsfree probability / operator norm
Outline of Annual Research Achievements

2019年度進めていた研究課題を以下の通り解決した。本研究課題の核の1つである, Bordenave氏と強自由性とテンソル積についての共同研究を完成させた。この研究結果は大きなテンソル積空間の新しい理論と具体的な計算法を提供した。その結果を「Strong asymptotic freeness for independent uniform variables on compact groups associated to non-trivial representations」としてまとめて論文として投稿している(プレプリントはarXiv:2012.08759)。独立なHaar分布に従うユニタリランダム行列の漸近的自由性がVoiculescuによって発見された後、ユニタリランダム行列の強漸近自由性のような作用素ノルムの収束までをこめた強い概念やユーグリッド空間の対称性を表すユニタリ行列ではなく有限集合の対称性を表すランダム置換の強漸近自由性も示されるなど多くの改良がなされてきている。その中で特定の非ランダムな置換で漸近的自由性を達成するものが構成できるという結果が知られている。この結果を深く考察しユニタリ群の表現論から自然に現れる新しい行列モデルを考察した。この一般化した文脈で強漸近的自由性が成り立つことを示せた。表現論における古典的な結果により、この結果からテンソルのへの応用も見つかっている。この結果を得るため4つの新しいツールを開発した(i) 中心化されたWeingarten calculusとその一様評価(ii) ガウスモーメントと行列のユニタリーモーメントの系統的かつ一様な比較、(iii) C*-代数における一般化・単純化された作用素値非バックトラッキング論 (iv) tensor moment matricesの組み合わせ論。

Research Progress Status

令和2年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

令和2年度が最終年度であるため、記入しない。

  • Research Products

    (18 results)

All 2023 2022 Other

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

  • [Int'l Joint Research] Aix-Marseille University CNRS(フランス)

    • Country Name
      FRANCE
    • Counterpart Institution
      Aix-Marseille University CNRS
  • [Journal Article] Asymptotic freeness of layerwise Jacobians caused by invariance of multilayer perceptron: the Haar orthogonal case2023

    • Author(s)
      Collins, Beno\^{i}t and Hayase, Tomohiro
    • Journal Title

      Communications in Mathematical Physics

      Volume: 397 Pages: 85--109

    • DOI

      10.1007/s00220-022-04441-7

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The spectrum of local random Hamiltonians2023

    • Author(s)
      Collins, B. and Yin, Z. and Zhao, L. and Zhong, P.
    • Journal Title

      Journal of Physics. A. Mathematical and Theoretical

      Volume: 56 Pages: 035201, 28

    • DOI

      10.1088/1751-8121/acb4c8

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A metric characterization of freeness2022

    • Author(s)
      Cadilhac, L. and Collins, B.
    • Journal Title

      Journal of Functional Analysis

      Volume: 283 Pages: 109562, 14

    • DOI

      10.1016/j.jfa.2022.109562

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The Weingarten calculus2022

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

      Notices of the American Mathematical Society

      Volume: 69 Pages: 734--745

    • DOI

      10.1090/noti2474

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] On the operator norm of non-commutative polynomials in deterministic matrices and iid GUE matrices2022

    • Author(s)
      Collins, Benoit and Guionnet, Alice and Parraud, Felix
    • Journal Title

      Cambridge Journal of Mathematics

      Volume: 10 Pages: 195--260

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] On spectral distribution of sample covariance matrices from large dimensional and large k-fold tensor products2022

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

      Electronic Journal of Probability

      Volume: 27 Pages: 102, 18

    • DOI

      10.1214/22-ejp825

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Additivity violation of the regularized minimum output entropy2022

    • Author(s)
      Collins, Benoit and Youn, Sang-Gyun
    • Journal Title

      Documenta Mathematica

      Volume: 27 Pages: 1299--1320

    • DOI

      10.4171/dm/898

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Concentration estimates for random subspaces of a tensor product and application to quantum information theory2022

    • Author(s)
      Collins, Benoit and Parraud, Felix
    • Journal Title

      Journal of Mathematical Physics

      Volume: 63 Pages: 102202, 13

    • DOI

      10.1063/5.0073837

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] New results around the norm of random matrices and operator-valued non-backtracking theory2022

    • Author(s)
      Benoit Collins
    • Organizer
      Geneva MP seminar
    • Int'l Joint Research / Invited
  • [Presentation] convergence of the spectrum of random matrices in the context of rational fractions2022

    • Author(s)
      Benoit Collins
    • Organizer
      UCSD seminar
    • Int'l Joint Research / Invited
  • [Presentation] Matrix integrals in a tensor setup2022

    • Author(s)
      Benoit Collins
    • Organizer
      Bielefeld - Melbourne Zufallsmatrizen
    • Int'l Joint Research / Invited
  • [Presentation] Properties of random tensor matrices with some applications to Quantum Informa- tion Theory2022

    • Author(s)
      Benoit Collins
    • Organizer
      Functional Analysis Seminar - Institute for Advanced Study in Mathematics of HIT
    • Int'l Joint Research / Invited
  • [Presentation] Matrix models for cyclic monotone and monotone independences2022

    • Author(s)
      Benoit Collins
    • Organizer
      SIMA 2022 - CIMAT
    • Int'l Joint Research / Invited
  • [Presentation] Centered Weingarten calculus and centered Wick calculus2022

    • Author(s)
      Benoit Collins
    • Organizer
      Fields Workshop on Noncommutative Geometry, Free Probability Theory and Random Matrix Theory
    • Int'l Joint Research / Invited
  • [Presentation] Strong convergence2022

    • Author(s)
      Benoit Collins
    • Organizer
      Northwestern Nemmers conference
    • Int'l Joint Research / Invited
  • [Presentation] Weingarten calculus for tensors2022

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

    • URL

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

URL: 

Published: 2023-12-25  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi