Directors Program Director Tetsuo Hatsuda Particle and Nuclear Physics Deputy Program Director Takashi Tsuboi Topology, Dynamical Systems Deputy Program Director Catherine Beauchemin Virophysics Deputy Program Director (concurrent) Shigehiro Nagataki Extreme Universe Deputy Program Director (concurrent) Takemasa Miyoshi Data Assimilation Scientific Advisors Senior Advisor Shigefumi Mori Mathematics, Algebraic Geometry Senior Advisor Yoh Iwasa Mathematical Biology Senior Advisor Masato Wakayama Mathematics Scientific Advisor Makoto Kobayashi Theoretical Particle Physics Vice Chief Scientist Vice Chief Scientist / Coordinator (concurrent) Tsukasa Tada Theoretical Particle Physics Coordinator Coordinator / Director, Office of the Program Director (concurrent) Tomoya Nagai R&D Administration, Science Communication Researchers Senior Research Scientist Gen Kurosawa Theoretical Biology Senior Research Scientist Takumi Doi Computational Particle and Nuclear Physics Senior Research Scientist Jeffrey Fawcett Genome Evolution Senior Research Scientist Yuki Yokokura Theoretical Physics (Quantum Gravity, Black Hole, Thermodynamics) Senior Research Scientist Ching-Kai Chiu Condensed Matter Physics Senior Research Scientist Ryo Namba Theoretical Cosmology, Gravitational Theory Senior Research Scientist Yalong Cao Algebraic Geometry, Mathematical Physics Senior Research Scientist Ryosuke Iritani Mathematical Biology, Evolutionary Ecology Research Scientist Keita Mikami Mathematics, Analysis, Partial Differential Equations Research Scientist Derek Beattie Inman Theoretical and Computational Cosmology Special Postdoctoral Researcher Kengo Kikuchi Elementary Particle Physics Special Postdoctoral Researcher Takeru Yokota Theoretical Physics, Many-body Problems Special Postdoctoral Researcher Akira Harada Physics, Space Science Special Postdoctoral Researcher Hidetoshi Taya Physics Special Postdoctoral Researcher Eiji Inoue Mathematics Special Postdoctoral Researcher Kazuki Kannaka Mathematics Special Postdoctoral Researcher Yingying Xu Mathematical Sciences Special Postdoctoral Researcher Taketo Sano Mathematics, Topology Special Postdoctoral Researcher José Said Gutiérrez-Ortega Evolutionary Biology, Ecology Special Postdoctoral Researcher Yuto Moriwaki Conformal Field Theory, Representation Theory Special Postdoctoral Researcher Tomoya Naito Quantum Many-Body Problems (Computational), Nuclear Physics, Atomic Physics, Condensed Matter Physics Special Postdoctoral Researcher Christy Koji Kelly Gravity, Lorentzian Geometry, Lorentzian Optimal Transport Theory, Discrete Curvature Special Postdoctoral Researcher Thomas Hitchcock Evolution, Ecology, Genetics Special Postdoctoral Researcher Che-Yu Chen Gravitational Theory, Black Hole Physics Special Postdoctoral Researcher Seishiro Ono Quantum Condensed Matter Physics Postdoctoral Researcher Shingo Gibo Theoretical Biology, Nonlinear Oscillation, Acoustic Engineering Postdoctoral Researcher Yantao Wu Physics, Chemistry Postdoctoral Researcher Congcong Le Condensed Matter Physics, Materials Sciences Postdoctoral Researcher Jizhou Li Chaos and Dynamical Systems, Virophysics Postdoctoral Researcher Puttarak Jai-akson Theoretical Physics, Classical/Quantum Gravity Visiting Researcher Kohei Hayashi Probability Theory Senior Research Scientist (concurrent) Ryusuke Hamazaki Statistical Mechanics Senior Research Scientist (concurrent) Makiko Nio Quantum Electrodynamics, Precision Physics Senior Research Scientist (concurrent) Akinori Tanaka Machine Learning, Mathematical Physics Research Scientist (concurrent) Shigenori Otsuka Data Assimilation Research Scientist (concurrent) Hajime Sotani Nuclear Astrophysics Research Scientist (concurrent) Hirotaka Ito Astrophysics Research Scientist (concurrent) Shun Ohishi Special Postdoctoral Researcher (concurrent) Kyosuke Adachi Biophysics, Condensed Matter Physics Special Postdoctoral Researcher (concurrent) Akira Dohi Nuclear Astrophysics Postdoctoral Researcher (concurrent) Ken Furukawa Mathematics Researchers (RIKEN-Berkeley Fellow) Postdoctoral Researcher Maria Manuela Saez Neutrino Physics, Astroparticles Postdoctoral Researcher Jan Schuette-Engel Researchers (RIKEN Quantum) Senior Research Scientist Steffen Backes Condensed Matter Physics Postdoctoral Researcher Yuta Sekino Condensed Matter Physics, Ultracold Atoms Postdoctoral Researcher Yaokun Lei Machine Learning Force Field, Rare Event Sampling, Reaction Dynamics Senior Research Scientist (concurrent) Yuji Sugita Theoretical Chemistry Senior Research Scientist (concurrent) Tomonori Shirakawa Condensed Matter Physics Postdoctoral Researcher (concurrent) Rongyang Sun Quantum Many-body Physics Research Consultants Research Consultant Koichi Yazaki Nuclear and Hadron Physics Research Consultant Kenji Fukaya Geometry Research Consultant Takeo Inami Senior Visiting Scientists Senior Visiting Scientist Hiroshi Suito Applied Mathematics, Computational Fluid Dynamics Senior Visiting Scientist Gordon Baym Quantum Many-body Theory Senior Visiting Scientist Wick C. Haxton Nuclear Astrophysics Senior Visiting Scientist Hideaki Aoyama Elementary Particle Theory, Mathematical Linguistics, Econophysics Senior Visiting Scientist Yasuyuki Kawahigashi Operator Algebras Senior Visiting Scientist Takashi Sakajo Applied Mathematics (Mathematical Fluid Dynamics) Senior Visiting Scientist Hidetoshi Nishimori Statistical Mechanics, Quantum Computation Senior Visiting Scientist Yoshiyuki Inoue High Energy Astrophysics Senior Visiting Scientist Motoko Kotani Geometry Senior Visiting Scientist Atsushi Mochizuki Theoretical Biology Senior Visiting Scientist (concurrent) Kazuyuki Aihara Mathematical Engineering Visiting Scientists (SUURI-COOL) Visiting Scientist Masato Itami Statistical Physics Visiting Scientist Natsuki Tomida Visiting Scientists (iTHEMS Alumni) Visiting Scientist Kazuo Fujikawa Particle theory, Quantum science Visiting Scientist Ade Irma Suriajaya Analytic Number Theory Visiting Scientist Nagisa Hiroshima Dark Matter, High Energy Astrophysics Visiting Scientist Tomoki Ozawa Condensed Matter Physics, AMO Physics, Topological Insulator Visiting Scientist Yoshimasa Hidaka Theoretical Physics Visiting Scientist Hokuto Konno Mathematics, Geometry and Topology Visiting Scientist Yuka Kotorii Mathematics, Topology Visiting Scientist Kenta Sato Mathematics, Algebraic Geometry Visiting Scientist Genki Ouchi Mathematics, Algebraic Geometry Visiting Scientist Shun Furusawa Astrophysics, Nuclear Physics Visiting Scientist Yuya Kusuki Physics Visiting Scientist Yukimi Goto Mathematics Visiting Scientist Masashi Tachikawa Cell Biology, Biophysics Visiting Scientist Masato Taki Mathematical Physics, Machine Learning Visiting Scientist Takashi Okada Mathematical Biology Visiting Scientist Masahiro Nozaki Elementary Particle Physics, Quantum Information Visiting Scientist Naomi Tsuji Astrophysics Visiting Scientist Kanato Goto High Energy Theory, String Theory, Quantum Gravity Visiting Scientist Masaru Hongo Particle and Nuclear Physics, Nonequilibrium physics Visiting Scientist Michiya Mori Mathematics, Physics Visiting Scientist Don Warren Cosmic Rays, Gamma-ray Bursts, Virology Visiting Scientist Yongjia Huang High Energy Astrophysics, Gravitational Wave Astrophysics Visiting Scientist Shou Yoshikawa Algebraic Geometry Visiting Scientist Takuya Sugiura Theoretical Nuclear and Hadronic Physics Visiting Scientist Yosuke Kubota Mathematics, Index Theorem Visiting Scientist Hiroshi Yokota Polymer Physics Visiting Scientist Masaki Taniguchi Mathematics, Topology Visiting Scientist Euki Yazaki Genome Evolution, Molecular phylogeny, Protistology Visiting Scientist Etsuko Itou Particle and Nuclear Physics, Lattice QCD, Quantum Computing Visiting Scientist Naritaka Oshita Quantum/Classical Gravity, Cosmology, Quantum Field Theory Visiting Scientist Ermal Rrapaj Nuclear Astrophysics, Quantum Computing Visiting Scientist Akira Matsumoto Theoretical Particle Physics, Lattice Gauge Theory, Quantum Computing Visiting Scientist Gilles Ferrand Astrophysics Visiting Scientist Kotaro Murakami Physics Visiting Scientist Yasunori Nomura Quantum Gravity, Cosmology, Particle Physics Visiting Scientists (Academia) Visiting Scientist Shinya Wanajo Cosmo-nuclear Science Visiting Scientist Koutarou Kyutoku Gravitational-wave Astronomy Visiting Scientist Kentaro Takami Theoretical Astrophysics Visiting Scientist Tetsuo Hyodo Physics Visiting Scientist Shingo Iwami Mathematical Sciences, Life Sciences Visiting Scientist Yuki Kamiya Physics Visiting Scientist Hiroshi Suzuki Visiting Scientist Yoji Ohashi Visiting Scientist Motoi Tachibana Visiting Scientist Takashi Inoue Visiting Scientist Sinya Aoki Visiting Scientist Faisal Etminan Visiting Scientist Wataru Souma Visiting Scientist Noriyoshi Ishii Visiting Scientist Atsushi Nakamura Visiting Scientist Haozhao Liang Visiting Scientist Kenji Sasaki Visiting Scientist Tomoya Hayata Visiting Scientist Abhijit Chakraborty Visiting Scientist Kazuya Mameda Visiting Scientist Yoichi Ikeda Hadron and Nuclear Physics Visiting Scientist Yuji Sakai Theoretical Biology Visiting Scientist Masazumi Honda Visiting Scientist Shunsuke Kobayashi Applied mathematics Visiting Scientist Christian Quirouette Virophyiscs Visiting Scientist Koya Sakakibara Numerical Analysis, Mathematical Fluid Dynamics Visiting Scientist Hiroshi Kokubu Dynamical Systems and Applications Visiting Scientist Hiroki Kodama Topology, Dynamical Systems Visiting Scientist Christopher Bourne Mathematics, Operator Algebras, Topological Phases Visiting Scientist Takahiro Doi Visiting Scientist Gergely Péter Fejös Visiting Scientists (Industry) Visiting Scientist Shinya Gongyo Physics Visiting Scientist Hirotaka Irie Quantum Computation, Mathematical Physics Visiting Scientist Hiroyasu Miyazaki Arithmetic and Algebraic Geometry Visiting Scientist Shoichiro Tsutsui Visiting Scientist Yuta Kikuchi Elementary Particle Physics Visiting Scientist Toshihiro Ota Mathematical Physics, Machine Learning Visiting Scientist Enrico Rinaldi Particle and Nuclear Physics, Machine Learning Visiting Scientist Shunji Matsuura Quantum Computing Student Trainee Intern Junior Research Associate / Student Trainee (concurrent) Hikaru Sakakibara Theoretical Physics Junior Research Associate / Student Trainee (concurrent) Yixin Guo Physics Junior Research Associate / Student Trainee (concurrent) Daiki Kumakura Microbial Evolutionary Ecology, Genome Evolution, Mathematical Biology Junior Research Associate / Student Trainee (concurrent) Tingyu Zhang Student Trainee Xun Liu Theoretical High Energy Physics, String Theory Student Trainee Liang Zhang Student Trainee Chuanxin Wang Quantum Many-Body Problems, Nuclear Physics Student Trainee Mizuki Oikawa Mathematics, Physics Student Trainee Keiichi Morita Mathematical Biology, Evolutionary Community Ecology Staff Assistant, Office of the Program Director Chikako Ota Assistant, Office of the Program Director Hitomi Wada Assistant, Office of the Program Director Tomoko Iwanami Assistant, Office of the Program Director Yuko Kawatsu Assistant, Office of the Program Director Nobuko Tanabe Part-time Worker, Office of the Program Director Keiko Ueda Technical Staff I (concurrent) Iriko Kaneko Visitors
