Faculty of Science and Technology, Department of Engineering and Applied Sciences
Job title
Professor
Degree
Doctor of Philosophy(The University of Tokyo), 理学修士(東京大学), 理学博士(東京大学)
Research funding number
50201976
J-Global ID
200901008827204586
Profile
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
machine learning in condensed matter physics
,physics of non-Hermitian systems
,spintronics
,quantum transport phenomena
,spin
,Scaling theory
,Anderson localization
Research Areas
Natural sciences / Mathematical physics and basic theory /
Physical Society of Japan, 2021 Highly cited article,Drawing Phase Diagrams of Random Quantum Systems by Deep Learning the Wave FunctionsTomi Ohtsuki Tomohiro Mano
Feb 2021
American Physical Society, APS outstanding referee award,United States of America
May 2019
The Physical Society of Japan, 2018 Highly cited articleTomi Ohtsuki Tomoki Ohtsuki
Mar 2019
Physical Society of Japan, The 24th Outstanding Paper Award of the Physical Society of Japan,JapanTomoki Ohtsuki Tomi Ohtsuki
Apr 2018
The Physical Society of Japan, 2017 Highly cited articleTomoki Ohtsuki Tomi Ohtsuki
Shunsuke Daimon Kakeru Tsunekawa Shinji Kawakami Takashi Kikkawa Rafael Ramos Koichi Oyanagi Tomi Ohtsuki Eiji Saitoh
Nature Communications 13(1) Dec 2022 [Refereed]
Abstract
When the electric conductance of a nano-sized metal is measured at low temperatures, it often exhibits complex but reproducible patterns as a function of external magnetic fields called quantum fingerprints in electric conductance. Such ...
We review the new method of obtaining the phase diagrams of quantum phase transitions in random electron systems. The method is based on the image recognition using the multilayer convolutional neural network, deep learning. Applications to the An...
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- met...
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.
Sophia University