• 研究課題をさがす
  • 研究者をさがす
  • KAKENの使い方
  1. 課題ページに戻る

2015 年度 実施状況報告書

Random Matrix Theory and its applications

研究課題

研究課題/領域番号 26800048
研究機関京都大学

研究代表者

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

研究期間 (年度) 2014-04-01 – 2017-03-31
キーワードRandom Matrices / Quantum Information / MOE additivity / positive maps / Connes Problem / free probability / planar algebras
研究実績の概要

During the last year I completed the following projects:
(1) together with Nechita, we wrote down a review of random matrix techniques in quantum information. It was published in the special edition of Journal of Mathematical Physics
(2) together with Nechita and Hayden, we finished a preprint where we discover new families of positive maps which are positive but not completely positive. It was published in IMRN
(3) alone, I gave a new proof of the MOE non-additivity problem. This proof is the most conceptual so far, it relies on Haagerup inequality. The paper is about to be accepted.
(3) we solved a problem of Jones about the basis dual to the canonical basis of the Temperley Lieb algebra. This is work in preparation with Brannan, and possibly Jones.

現在までの達成度 (区分)
現在までの達成度 (区分)

1: 当初の計画以上に進展している

理由

I completed many problems that I had assigned myself. On most topics, the progress is very smooth. However, on my joint work with Brannan on quantum groups and quantum information, we got slightly delayed, because we wanted to check whether our results so far have very strong applications. We expect to finish our joint paper this spring.

今後の研究の推進方策

Apart from the above, here are my other projects:
(1) I expect to finish other lecture notes and a collaboration with Junge this spring on non-commutative Brownian motions.
(2) I expect to finish a collaboration with Nechita and Metcalfe about Riemann Hilbert techniques in quantum information theory.
(3) I intend to continue working with Klep on non commutative real algebraic geometric aspects of the Connes embedding problem.

次年度使用額が生じた理由

The amount is not zero because travel expenses were lower than expected.

次年度使用額の使用計画

I plan to use this amount for travel expenses and inviting collaborators.

備考

This Webpage contains all information about my publications, CV and research activities

  • 研究成果

    (11件)

すべて 2016 2015 その他

すべて 雑誌論文 (2件) (うち国際共著 2件、 査読あり 2件、 謝辞記載あり 2件) 学会発表 (8件) (うち招待講演 8件) 備考 (1件)

  • [雑誌論文] Random matrix techniques in quantum information theory.2016

    • 著者名/発表者名
      Benoit Collins, Ion Nechita
    • 雑誌名

      Journal of Mathematical Physics

      巻: 57 ページ: 015215

    • DOI

      10.1063/1.4936880

    • 査読あり / 国際共著 / 謝辞記載あり
  • [雑誌論文] Almost one bit violation for the additivity of the minimum output entropy.2016

    • 著者名/発表者名
      Serban Belinschi, Benoit Collins, Ion Nechita
    • 雑誌名

      Communications in Mathematical Physics

      巻: 341 ページ: 885–909

    • DOI

      10.1007/s00220-015-2561-z

    • 査読あり / 国際共著 / 謝辞記載あり
  • [学会発表] Applications of the Haagerup's inequality and strong convergence of random matrices to quantum information theory2016

    • 著者名/発表者名
      Benoit Collins
    • 学会等名
      theoretical physics seminar
    • 発表場所
      Stanford
    • 年月日
      2016-03-24 – 2016-03-24
    • 招待講演
  • [学会発表] Free probability for random matrices with purely discrete eigenvalues2016

    • 著者名/発表者名
      Benoit Collins
    • 学会等名
      Berkeley
    • 発表場所
      Berkeley
    • 年月日
      2016-03-23 – 2016-03-24
    • 招待講演
  • [学会発表] Positive maps from free probability theory2016

    • 著者名/発表者名
      Benoit Collins
    • 学会等名
      MAQIT
    • 発表場所
      Cheongju
    • 年月日
      2016-02-15 – 2016-02-19
    • 招待講演
  • [学会発表] Probabilites libres pour des modeles matriciels de rang approximativement petits2016

    • 著者名/発表者名
      Benoit Collins
    • 学会等名
      Probability seminar
    • 発表場所
      Paris 6 university
    • 年月日
      2016-02-09 – 2016-02-09
    • 招待講演
  • [学会発表] Quantum groups and quantum information2016

    • 著者名/発表者名
      Benoit Collins
    • 学会等名
      operator algebra seminar
    • 発表場所
      Tokyo university
    • 年月日
      2016-01-06 – 2016-01-06
    • 招待講演
  • [学会発表] Entanglement and the area law2015

    • 著者名/発表者名
      Benoit Collins
    • 学会等名
      mathematical physics summer school
    • 発表場所
      Tokyo university
    • 年月日
      2015-08-28 – 2015-08-30
    • 招待講演
  • [学会発表] De Finetti theorems in quantum information theory, separable states, and (quantum) group symmetries2015

    • 著者名/発表者名
      Benoit Collins
    • 学会等名
      Herstmonceux
    • 発表場所
      Herstmonceux
    • 年月日
      2015-07-13 – 2015-07-18
    • 招待講演
  • [学会発表] k-positive maps and free probability2015

    • 著者名/発表者名
      Benoit Collins
    • 学会等名
      Oberwolfach
    • 発表場所
      Oberwolfach, Germany
    • 年月日
      2015-06-07 – 2015-06-13
    • 招待講演
  • [備考] Benoit Collins' website

    • URL

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

URL: 

公開日: 2017-01-06  

サービス概要 検索マニュアル よくある質問 お知らせ 利用規程 科研費による研究の帰属

Powered by NII kakenhi