Department of Engineering and Applied Sciences
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  2. Ohtsuki Tomi

Ohtsuki Tomi

  (大槻 東巳)

Profile Information

Affiliation
Professor, Faculty of Science and Technology, Department of Engineering and Applied Sciences, Sophia University
Degree
Doctor of Philosophy(The University of Tokyo)
理学修士(東京大学)
理学博士(東京大学)
Researcher number
50201976
J-GLOBAL ID
200901008827204586
researchmap Member ID
1000082891
External link

I took ph.D on the quantum Hall effect at Univ. Tokyo.
I studied numerical scaling methods while working at PTB Germany as a post doctral fellow.
I developed scaling of the level statistics at Osaka and Toho universities.
After moving to Sophia University, I have been studing the localization and conductance scaling properties. The main focus of recent research is on the topological insulators and superconductors.

Tomi Ohtsuki, Doctor of Science (University of Tokyo, 1989), is Professor of physics at Sophia University, Tokyo, where he conducts theoretical and computational researches in condensed matter physics. His recent research focuses on quantum transport phenomena such as the Anderson transition, conductance fluctuations, Hall and spin Hall effects in nanoscale systems. He has taught physics for more than 15 years in several universities and graduate schools. His research has been published by Physical Review Letters, Physical Review B, Physics Reports, and others.
The main classes he has are mechanics, electromagnetics, linear algebra, statistical physics as well as solid state physics.

(Subject of research)
Numerical Study of Anderson transitions
spin related quantum transport phenomena

Research Interests

 7

Research Areas

 1

Awards

 8
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Papers

 205
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Misc.

 139
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Books and Other Publications

 11
  • 大槻 東巳 (Role: Joint author, p. 13-30 (第1章))
    朝倉書店, Oct 10, 2019 (ISBN: 9784254131291)
    機械学習を使って物理学で何ができるのかを解説した著書。大槻・真野の分担は機械学習，深層学習が物理に何を起こそうとしているかを波動関数の解析を例に解説した，第1章である。
  • Ohtsuki Tomi (Role: Joint author, 109-157)
    Wiley-Scrivener, Apr 9, 2019 (ISBN: 9781119407294)
    Topological properties are sometimes emergent or enforced by the breaking of translational invariance. Here, in this chapter we discuss dimensional crossover of topological properties in thin films of topological insulators (TI) and Weyl semi- metals, electronic properties on the surface of TI nanoparticles and TI nanowires as a constrained electronic system. To discuss the effects of disorder is another highlight of this chapter. We cast on the unusual robustness of Dirac and Weyl semimetal phases against disorder, then the discussion is turned to a novel type of quantum criticality emergent from this unusual robustness, leading us to formu- late the scaling theory of semimetal-metal transition. The concept of topological matter dose not fade under circumstances of absent translational invariance; it is on the contrary, emergent or enforced under such circumstances.
  • Ohtsuki Tomi
    Wiley online library, Mar 12, 2019 (ISBN: 9781119407317)
  • Ohtsuki Tomi (Role: Joint author)
    Oxford University Press, Jul 18, 2012 (ISBN: 9780199592593)
  • 大槻 東巳 (Role: Joint author, 295-305)
    朝倉書店, May 10, 2012 (ISBN: 9784254131031)
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Professional Memberships

 2

Research Projects

 27
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Other

 6
  • Oct, 2005 - Mar, 2008
    As the head of the curriculum committee for English for science and engineering program, I have organized more than 30 classes, and prepared electronic lecture materials. I also taught physics classes myself using DVD and other electronic lecture materials.
  • Apr, 1998 - Sep, 2007
    ナノスケールの物理学に関する講義ノートを電子化し，学生に配付した。これにより学生は予習，復習を容易に行えるようになった。さらに細かい記法と複雑な式を正確に学べるようになった。
  • Apr, 1995 - Sep, 2006
    線形代数学を物理学科向けに講義した。講義ノートを工夫して作成し，全員が簡単にダウンロードできるようにした。
  • Oct, 2003 - Mar, 2006
    電磁気学の講義ノートを電子化した。これにより学生は講義に集中できるようになった。また，予習，復習が容易になった。
  • Apr, 1999 - Sep, 2001
    物理学を学ぶ上で必要な数学と，それをふまえた体系的な力学を講義ノートを電子化して教授した。学生は詳しい講義ノートをダウンロード，印刷することで内容に集中できるようになった。
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