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Lab Members
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Seiji Yunoki
Chief Scientist
My research focuses on quantum many-body physics using both classical and quantum computers
Biography
2024 Project director, Data and Computational Science Integration Research Program, TRIP Headquaters (present)
2021 Team leader, Quantum Computational Science Research Team, RIKEN Center for Quantum Computing (RQC) (present)
2018 Team leader, Computational Materials Science Research Team, RIKEN Center for Computational Science (R-CCS) (present)
2017 Chief Scientist, Computational Condensed Matter Physics Laboratory, RIKEN (present)
2012 Team leader, Computational Quantum Matter Research Team, RIKEN Center for Emergent Matter Science (CEMS) (present)
2010 Team leader, Computational Materials Science Research Team, Advanced Institute for Computational Science (AICS), RIKEN
2008 Associate Chief Scientist, Computational Condensed Matter Physics Laboratory, RIKEN
2006 Long-Term Visiting Scientist/Research Assistant Professor, Oak Ridge National Laboratory/University of Tennessee, USA
2001 Post-Doc Researcher, International School of Advanced Studies (SISSA),Italy
1999 Post-Doc Researcher Materials Science Center, University of Groningen, The Netherlands
1996 Post-Doc Researcher, National High Magnetic Field Laboratory, USA
1996 Graduated from Applied Physics, Graduate School, Division of Engineering, Nagoya University -
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Erik Viktor Loetstedt
Senior Research Scientist (iTHEMS, TRIP, PRI)
I am interested in the simulation of quantum dynamics of atoms and molecules, in particular molecules irradiated with strong laser fields. I am also studying how quantum computers can be used for simulations in atomic and molecular physics.
Biography
2008 PhD (Heidelberg University)
2008 – 2009 Postdoc (Max Planck Institute for Nuclear Physics, Heidelberg, Germany)
2009 – 2011 Postdoc (The University of Tokyo, Japan)
2012 Visiting researcher (Missouri University of Science and Technology, Rolla, USA)
2012 – 2014 Postdoc (RIKEN, Wako, Japan)
2014 – 2020 Assistant Professor (The University of Tokyo, Japan)
2020 – 2025 Associate Professor (The University of Tokyo, Japan)
2025 – present Senior Scientist (RIKEN, Wako, Japan) -
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Kazuhiro Seki
Research Scientist (RQC)
I specialize in condensed matter physics and have conducted research on the electronic states of strongly correlated electron models using numerical methods. In recent years, I have been particularly interested in exploring how quantum computers can be utilized to address problems in condensed matter physics, with the aim of deepening our understanding of quantum many-body systems.
Biography
2013 Ph.D. in Physics, Chiba University, Japan
2013 Postdoctoral Researcher, RIKEN, Japan
2017 JSPS Overseas Research Fellow, SISSA (International School for Advanced Studies), Italy
2019 Research Scientist, RIKEN Center for Emergent Matter Science (CEMS), Japan
2021 Research Scientist, RIKEN Center for Quantum Computing (RQC), Japan -
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Kazuya Shinjo
Research Scientist (CEMS)
I have consistently worked on non-perturbative analyses of quantum many-body systems. My recent research is oriented toward quantum computing, where I study exotic nonequilibrium phases on digital quantum computers. In parallel, I develop and apply many-body numerical approaches to connect circuit dynamics with nonequilibrium responses in strongly correlated electron systems.
Biography
2022 Research Scientist in the Center for Emergent Matter Science (CEMS), RIKEN, Japan
2017 CREST researcher in the Department of Applied Physics, Tokyo University of Science, Japan
2016 Ph.D. in Physics, Kyoto University, Japan
2013 M.S. in Physics, Kyoto University, Japan
2011 B.S. in Physics, Keio University, Japan -
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Yixuan Huang
Postdoctral Researcher (CEMS)
I have a background in numerical studies of strongly correlated electron and spin systems using tensor network-based methods, including density matrix renormalization group. My current interests focus on unraveling the origin and mechanism of the interaction-driven exotic quantum states of matter, such as quantum spin liquids, topological superconductors, and spin supersolids. Additionally, I am interested in the non-equilibrium properties of strongly correlated models and collaborate with experimentalists.
Biography
I obtained my PhD in physics from the University of Houston in 2020. I then worked as a post-doc at California State University, Northridge before joining Los Alamos National Laboratory in 2022. Since 2024, I have been a post-doctoral researcher at RIKEN Center for Emergent Matter Science (CEMS).
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Yuki Miyazaki
Postdoctral Researcher (R-CCS)
I conduct theoretical research on strongly correlated quantum many-body systems by combining classical numerical methods, including tensor network techniques, with quantum simulations on real quantum hardware. I also incorporate perspectives from quantum information theory to explore new physical insights arising from entanglement and measurement.
Biography
Apr. 2022 - Mar. 2025 Ph.D. course, Aoyama Gakuin University
Jul. 2022 - Feb. 2025 PREST Research Assistant, Nihon University
Apr. 2023 - Mar. 2025 Research fellow of JSPS (DC2)
Apr. 2025 - present Postdoctoral researcher, RIKEN R-CCS
Collaborators (External)
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Xingqiu Chen
Chinese Academy of Sciences (China)
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Elbio Dagotto
University of Tennessee & ORNL (USA)
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Shuai Dong
Southeast University (China)
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Wei Ku
Brookhaven National Laboratory (USA)
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Tao Li
Renmin University of China (USA)
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Jose Riera
Departamento de Fısica and Instituto de Fısica de Rosario (Argentina)
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Andrivo Rusydi
National University of Singapore (Singapore)
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George Sawatzky
University of British Columbia (Canada)
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Ryuichi Shindou
Tokyo Institute of Technology (Japan)
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Sandro Sorella
SISSA (Italy)
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Jose Candido Xavier
Universidade Federal de Uberlandia (Brazil)
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Qinfang Zhang
Yancheng Institute of technology (China)
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Shinichi Yamagiwa
University of Tsukuba (Japan)
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Shinxun Zhang
niversity of Tsukuba (Japan)
Past Members
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Qing Xie
Postdoctral Researcher (RQC)
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Yusuf Wicaksono
Postdoctral Researcher
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Juan Pedersen
Postdoctral Researcher (RQC)
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Sadamichi Maekawa
Senior Scientist
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Tatsuya Kaneko
ostdoctoral Researcher (SPDR), Research Scientist (2016/4 - 2019/3, 2021/10-2022/3)
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Shohei Miyakoshi
Postdoctoral Researcher (2017/4 - 2022/3)
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Kentaro Sugimoto
JRA (2018/4 - 2021/3)
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Akiko Kato (Masaki)
Postdoctoral Researcher (SPDR), Research Scientist (R-CCS) (2015/4 - 2018/6)
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Yasumasa Tsutsumi
Research Scientist (CEMS) (2018/4 - 2020/3)
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Beom Hyun Kim
Postdoctoral Researcher (iTHES) (2015/4 - 2018/3)
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Tomonori Shirakawa
Postdoctoral Researcher (SPDR), Research Scientist (CEMS) (2009/10-2018/3)
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Kazuto Noda
Postdoctoral Researcher (JSPS) (2016/4-2017/3)
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Kazutaka Nishiguchi
Postdoctoral Researcher (2013/4 - 2016/8)
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Hiroshi Watanabe
Postdoctoral Researcher (CEMS) (2009/4-2016/3, 2019/4-2020/3)
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Toshihiro Sato
Postdoctoral Researcher (SPDR) (2013/4-2016/3)
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Shin-ichi Hikino
Postdoctoral Researcher (JSPS, SPDR) (2010/4-2016/3)
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Robert Peters
Postdoctoral Researcher (FPR) (2014/4-2015/11)
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Hirofumi Sakakibara
Postdoctoral Researcher (2014/4 - 2015/10)
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Wei Fan
Postdoctoral Researcher (FPR) (2013/12-2015/11)
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James Anderson
Postdoctoral Researcher (FPR) (2014/3-2015/3)
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Subhra Sen Gupta
Postdoctoral Researcher (FPR) (2013/1-2014/12)
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Kalpataru Pradhan
ostdoctoral Researcher (CEMS) (2014/4-2014/8)
JSPS Postdoctoral Fellowship for Overseas Researchers (2014/9-2014/11) -
Satadeep Bhattacharjee
Postdoctoral Researcher (2012/9 - 2012/10)
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Ippei Danshita
Postdoctoral Researcher (SPDR) (2010/4 - 2012/9)
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Vivien Badaut
Postdoctoral Researcher (2010/12 - 2012/9)
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Qinfang Zhang
Postdoctoral Researcher (2009/7 - 2012/2)
JSPS Visiting Scientist (2012/12 - 2013/2) -
Masahiko Okumura
Postdoctoral Researcher (SPDR) (2010/4 - 2011/4)
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Lihua Wang
Postdoctoral Researcher (2009/8 - 2011/3)
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Florian Lange
International Program Associate (IPA) (2016/2 - 2017/2)
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Sun Yan
Intern Student (2011/10 - 2011/11)
International Program Associate (IPA) (2013/3 - 2014/3) -
Pablo Lamilla Alvarez
Ph. D student (JRA) (2011/4-2012-3)
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Guohong Chen
Intern Student (2010/1 - 2010/3)