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初貝 安弘
筑波大学
理工学群副学群長
数理物質系物理学域
筑波大学大学院
数理物質科学研究科
物理学専攻 教授
学際物質科学研究センター(TIMS)教授
初貝写真
Yasuhiro-Nov11-2009
会議 & 研究会
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ResercherID: Y. Hatsugai
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KITP program

Yasuhiro Hatsugai, "Bulk-edge correspondence in topological pumping", 14:00 pm, Oct. 14 (2016)

 

Symmetry, Topology, and Quantum Phases of Matter: From Tensor Networks to Physical Realizations

Sept 26, 2016 - Dec 16, 2016
Coordinators: Ignacio Cirac, Lukasz Fidkowski, Ashvin Vishwanath, and Cenke Xu

Synthetic Quantum Matter

September 12-December 9, 2016

Coordinators: Dima Abanin, Jason Alicea, Alexey Gorshkov, and Frank Verstraete

Scientific Advisors: Immanuel Bloch, Ignacio Cirac, Matthew Fisher, Mikhail Lukin, Joel Moore, and Leo Radzihovsky

 
前
[P] JSPS-EPSRC Tohoku-Cambridge-CNRS Core to Core program Symposium "Two dimensional electronics/spintronics devices" Nov.16-20 (2016)
カテゴリートップ
国際会議、研究会、セミナー
次
[P] Yukawa Institute for Theoretical Physics (YITP) international workshop "Physics of bulk-edge correspondence and its universality: From solid state physics to cold atoms" [ BEC2016 ] September 27- 30, 2016

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今年もやります。まずは量子力学3. 冬は 統計力学2. 平成29年の新年あけましておめでとうございます。今年もあと44日!
最新ニュース
投稿者 : hatsugai 投稿日時: 2017-10-06 16:36:02 (65 ヒット)

The entanglement Chern numbers is a Chern number of an entanglement Hamiltonian which characterizes topological properties of a topological phase. Starting from a pure state density matrix of the ground state, one may obtain finite temperature (mixed state) density matrix by tracing out parts of the system. If the entanglement hamiltonian has a finite energy gap, the Chern number is well defined by lowering the temperature. We apply the concept for the 3D topological phases.The parity of the number of the Weyl point gives a well defined topological number to distinguish the the state is topologically non trivial. Have a look at arXiv 1708.03722 . The paper has been accepted for publication in Physical Review B.


投稿者 : hatsugai 投稿日時: 2017-08-17 17:01:30 (295 ヒット)

初貝研究室では今回助教2名を公募いたします(公募締め切り2017年9月15日)。委細は [助教公募] をご確認ください。適任者のご推薦、ご応募の方よろしくお願いいたします。


投稿者 : hatsugai 投稿日時: 2017-08-17 17:00:09 (333 ヒット)

We are organizing a Japan-Swiss workshop TTCM2017 at EPOCHAL Tsukuba, Sep.10-13 (2017). Limited number of posters will be still accepted.


投稿者 : hatsugai 投稿日時: 2017-08-03 13:38:17 (255 ヒット)

A numerical scheme to calculate the many body Chern number for a ground state multiplet is formulated and explicitly given for projected bands of any lattice. We demonstrate its validity for lattice analogue of the nu=1/3 and 1/2 states. The string gauge to realize the minimum flux compatible with the periodicity of the unit cell is also presented. [arXiv:1707.06722]. The paper is published in JPSJ lett.



    検索
    バルク・エッジ対応
    [0] バルクとエッジ
    [1] 集中講義
    [2] 原論文と解説
    [3] トポロジカル秩序とベリー接続:日本物理学会誌 「解説」 [JPS-HP] [pdf]
    [4] "Band gap, dangling bond and spin : a physicist's viewpoint" [pdf] [Web]
    トポロジカル相
    [0]昔の科研費
    科研費 1992年度:電子系スピン系におけるトポロジカル効果
    科研費 1994年度:物性論におけるトポロジーと幾何学的位相
    私の講演ファイルのいくつか
    [1] MIT, Boston (2003)
    [2] APS/JPS March Meeting (2004)
    [3] JPS Fall meeting, JAPAN (2004)
    [4] APS/JPS March meeting (2005)
    [5] JPS Fall meeting (2005):Entanglement
    [6] Superclean workshop, Nasu (2006)
    [7] MPIPKS, Dresden (2006)
    [8] KEK, Tsukuba (2007)
    [9] ETH, Zurich (2008)
    [10] ICREA, Sant Benet (2009)
    [11] JPS Meeting, Kumamoto (2009)
    [12]HMF19, Fukuoka (2010)
    [13] NTU, Singapore (2011)
    [14] ICTP, Trieste (2011)
    [15] Villa conf., Orland (2012)
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