Directors Director / Division Director (concurrent) Satoshi Iso Theoretical Physics Deputy Director / Division Director (concurrent) / Associate Division Director (concurrent) / Associate Division Director (concurrent) Tsukasa Tada Theoretical Particle Physics Deputy Director / Associate Division Director (concurrent) Yoshimasa Hidaka Theoretical Physics Deputy Director / Associate Division Director (concurrent) Catherine Beauchemin Virophysics Deputy Director / Associate Division Director (concurrent) Yasuyuki Kawahigashi Operator Algebras Deputy Director (concurrent) / Division Director (concurrent) / Associate Division Director (concurrent) Shigehiro Nagataki Extreme Universe Division Director (concurrent) Tomoya Nagai R&D Administration, Science Communication Scientific Advisors Senior Advisor Yoh Iwasa Mathematical Biology Senior Advisor Makoto Kobayashi Theoretical Particle Physics Senior Advisor Shigefumi Mori Mathematics, Algebraic Geometry Senior Advisor Masato Wakayama Mathematics Coordinator Coordinator Tomoya Nagai R&D Administration, Science Communication Researchers, Division of Fundamental Mathematical Science Senior Research Scientist Gen Kurosawa Theoretical Biology Senior Research Scientist Takumi Doi Computational Particle and Nuclear Physics Senior Research Scientist Shunji Matsuura Quantum Computing Senior Research Scientist Ching-Kai Chiu Condensed Matter Physics Senior Research Scientist Masazumi Honda Theoretical Physics, High Energy Theory, Quantum Computation, Mathematical Physics Senior Research Scientist Masamichi Miyaji Theoretical physics, Quantum Gravity Senior Research Scientist Kantaro Omori Quantum Field Theory, Mathematical Physics Senior Research Scientist (concurrent) Akinori Tanaka Machine Learning, Mathematical Physics Senior Research Scientist (concurrent) Ryusuke Hamazaki Statistical Mechanics Research Scientist Kyosuke Adachi Biophysics, Condensed Matter Physics Research Scientist Yuto Moriwaki Mathematical Physics, Representation theory Research Scientist José Said Gutiérrez-Ortega Evolutionary Biology, Ecology Research Scientist Thomas Hitchcock Evolution, Ecology, Genetics Research Scientist Derek Beattie Inman Theoretical and Computational Cosmology Research Scientist Camilia Demidem Theoretical and Computational Approaches in High-Energy Astrophysics Research Scientist Shuntaro Aoki Cosmology, Particle Physics Research Scientist Vladimir Sosnilo Homotopy Theory, Category Theory, Algebraic Geometry Research Scientist Zhe Wang Mathematical Physics, Integrable Systems Research Scientist Hiromi Ebisu Theoretical Physics, condensed matter theory, Research Scientist Sungsik Kong Phylogenetic Methods, Computational Evolutionary Biology Research Scientist Yuya Murakami Number Theory, Topology Research Scientist Yuta Hamada Theoretical Physics Research Scientist (concurrent) Akira Mizuta Special Postdoctoral Researcher Che-Yu Chen Gravitational Theory, Black Hole Physics Special Postdoctoral Researcher Yuto Yamamoto Algebraic Geometry, Tropical Geometry Special Postdoctoral Researcher Osamu Fukushima Theoretical Physics, Quantum Field Theory, Integrable System Special Postdoctoral Researcher Junnosuke Koizumi Algebraic Geometry, Arithmetic Geometry Special Postdoctoral Researcher Okuto Morikawa Theoretical Physics, Quantum Field Theory, Non-perturbative Formulation and Simulation Special Postdoctoral Researcher Shoto Aoki Lattice Gauge Theory, Mathematical Physics Special Postdoctoral Researcher Daichi Takeda Theoretical Physics, High Energy Physics, Quantum Gravity, Holographic Principle Special Postdoctoral Researcher Keiya Hirashima Galaxy Formation and Evolution, AI, High-Performance Computing Special Postdoctoral Researcher Kenji Okubo Evolutionary Biology, Theoretical Biology, Mathematical Biology, Biophysics, Network Science, Cultural Evolution, Mathematical Archaeology Special Postdoctoral Researcher Chi-Kang Chang Algebraic Geometry, Birational Geometry Special Postdoctoral Researcher Álvaro Pastor Gutiérrez High-Energy Physics, Quantum Field Theory, Non-Perturbative Methods Special Postdoctoral Researcher Wei-Hsiang Shao High Energy Theory, Quantum Gravity Special Postdoctoral Researcher Riccardo Muolo Nonlinear dynamics on networks and higher-order structures Special Postdoctoral Researcher Keita Goto Berkovich Geometry, Algebraic Geometry Special Postdoctoral Researcher Takumi Maegawa Algebraic Topology, Higher Category Theory, Sheaf Theory Special Postdoctoral Researcher Yuki Suzuki Particle Physics, Holographic Principle Special Postdoctoral Researcher Ryo Sawada Astrophysics Special Postdoctoral Researcher Naotaka Kubo Particle Physics, Mathematical Physics Special Postdoctoral Researcher Kai Murai Particle Cosmology Special Postdoctoral Researcher Mao Hoshino Quantum Group, Operator Algebra, Representation Theory Special Postdoctoral Researcher Masato Tanabe Topology, Singularity theory of differentiable maps Special Postdoctoral Researcher Chien-Yu Chou Theoretical Physics; Quantum Field Theory; Quantum Gravity; Lattice Gauge Theory; Numerical Methods Special Postdoctoral Researcher (concurrent) Takehiro Tottori Theoretical Biology, Applied Mathematics Postdoctoral Researcher Puttarak Jai-akson Theoretical Physics, Classical/Quantum Gravity Postdoctoral Researcher Amaury Micheli Theoretical Cosmology, Quantum Entanglement Postdoctoral Researcher Rento Yamada Postdoctoral Researcher Isaac Planas Sitja Postdoctoral Researcher Muzi Hong Cosmology Postdoctoral Researcher Mariia Ivonina JSPS PD Researcher Kohei Fukai Mathematical Genomics RIKEN ECL Research Unit, Division of Fundamental Mathematical ScienceDetails RIKEN ECL Research Unit Leader Leo Speidel Postdoctoral Researcher Lucas Sort Biostatistics, Machine Learning, Statistical Genetics Postdoctoral Researcher Aina Colomer i Vilaplana Postdoctoral Researcher Alba Nieto Heredia Junior Research Associate / Student Trainee (concurrent) Satsuki Hirasawa Assistant (concurrent) Tomoko Iwanami AI as Science Team, Division of Applied Mathematical ScienceDetails Team Director Masato Taki Mathematical Physics, Machine Learning Deputy Team Director Lingxiao Wang Particle and Nuclear Physics, Machine Learning, AI for Science Assistant (concurrent) Keiko Ueda Mathematical Application Research Team, Division of Applied Mathematical Science Team Director (concurrent) Motoko Kotani Geometry Deputy Team Director (concurrent) Tsukasa Tada Theoretical Particle Physics Research Scientist Taketo Sano Low-Dimensional Topology, Knot Theory Research Scientist Antoine Diez Mathematical Biology, Partial Differential Equations, Stochastic Processes, Agent-Based Modeling, Kinetic Theory, In Silico Modeling Special Postdoctoral Researcher Chihaya Jibiki Topology, Mathematics Assistant (concurrent) Yuko Kawatsu Quantum Mathematical Science Team, Division of Applied Mathematical ScienceDetails Team Director (concurrent) Tetsuo Hatsuda Particle and Nuclear Physics Senior Research Scientist Erik Loetstedt Computational Physics, Computational Chemistry, Strong-Field Science, Quantum Computing Senior Research Scientist Arata Yamamoto Particle and Nuclear Physics, Lattice Gauge Theory Senior Research Scientist (concurrent) Yuji Sugita Theoretical Chemistry Senior Research Scientist (concurrent) Tomonori Shirakawa Condensed Matter Physics Research Scientist Himadri Pathak Atomic, Molecular, and Optical Physics, Quantum Chemistry Postdoctoral Researcher Xiaoyang Wang Quantum Computation, High Energy Physics, Computer Science Postdoctoral Researcher Tianyin Li Postdoctoral Researcher Jian Xu Quantum Machine Learning, Quantum Bayesian Models Visiting Scientist Tomoya Naito Quantum Many-Body Problems (Computational), Nuclear Physics Visiting Scientist Takashi Abe Coordinator (concurrent) Shinichiro Fujii Nuclear Theory, Project Management Junior Research Associate / Student Trainee (concurrent) Haruki Emori Foundations of Quantum Theory, Quantum measurement theory, Quantum Information theory Student Trainee Pradyot Pritam Sahoo Assistant Yuko Kawatsu Medical Science Data-driven Mathematics Team, Division of Applied Mathematical ScienceDetails Team Director Eiryo Kawakami Senior Research Scientist Satoru Sugimoto Medical Data Science Postdoctoral Researcher Ruiming Li Postdoctoral Researcher Megumi Oya Postdoctoral Researcher (concurrent) Hikaru Sugimoto Senior Visiting Scientist Tetsuo Ishikawa Data-driven Medical Sciences, Machine Learning for Healthcare Visiting Scientist Tazro Ohta Bioinformatics Visiting Scientist Shinji Nakaoka Student Trainee Yuji Okano Technical Staff I Ayaka Hananoe Medical Science Deep Learning Team, Division of Applied Mathematical ScienceDetails Team Director Jun Seita Senior Research Scientist Naoki Nonaka Postdoctoral Researcher (concurrent) Dorothy Ellis Biostatistics, Omics (Multiomics, Genomics, Epigenomics, Transcriptomics), Bioinformatics, Machine Learning Technical Scientist (concurrent) Yukiko Yanagisawa Technical Staff II (concurrent) Kazumi Yamada Prediction Science Research Team, Division of Applied Mathematical ScienceDetails Team Director (concurrent) Takemasa Miyoshi Data Assimilation Research Scientist (concurrent) Shun Ohishi Research Scientist (concurrent) Michael Goodliff Data Assimilation, Machine Learning, Applied Mathematics Research Scientist (concurrent) Tristan Hascoet Research Scientist (concurrent) James Taylor Postdoctoral Researcher Yuta Tarumi Postdoctoral Researcher Shungo Tonoyama Postdoctoral Researcher Unashish Mondal Data Assimilation Senior Visiting Scientist Takashi Sakajo Applied Mathematics (Mathematical Fluid Dynamics) Visiting Scientist Juan Ruiz Visiting Scientist Pierre Tandeo Research Fellow Marina Lagos Research Fellow Gimena Casaretto Research Fellow Sebastian Lopez Technical Staff I (concurrent) Ishimizu Takahisa Assistant (concurrent) Yukie Komori Assistant (concurrent) Saeko Imano Administrative Part-time Worker I Asami Nikaido Mathematical Social Science Team, Division of Applied Mathematical ScienceDetails Team Director Yohsuke Murase Research Scientist Ivan Romić Research Scientist (concurrent) Nikoleta E. Glynatsi Game Theory, Computational Social Science Postdoctoral Researcher Brian Andrew Mintz Theoretical Biology, Evolutionary Game Theory, JSPS PD Researcher Shinobu Utsumi Senior Visiting Scientist Takayuki Mizuno Assistant (concurrent) Nobuko Tanabe Kyushu University Collaboration Team, Division of Global Collaborations and Research Talent DevelopmentDetails Team Director Ryoko Oishi-Tomiyasu Applied Mathematics (algebra, harmonic analysis, etc), Mathematical Crystallography Assistant (concurrent) Chikako Ota Tohoku University Collaboration Team, Division of Global Collaborations and Research Talent Development Team Director Tomoki Ozawa Condensed Matter Physics, AMO Physics, Topological Insulator RIKEN-Berkeley Center, Division of Global Collaborations and Research Talent DevelopmentDetails RIKENｰBerkeley Center Director (concurrent) Shigehiro Nagataki Extreme Universe Postdoctoral Researcher Akira Dohi Nuclear Astrophysics Postdoctoral Researcher Yan Lyu Hadronic Physics, Lattice Gauge Field Theory Postdoctoral Researcher Yuuka Kanakubo High-Energy Physics, Nuclear Theory Postdoctoral Researcher Gabriele Di Ubaldo Theoretical Physics, Conformal Field Theory, Quantum Gravity, Quantum Chaos Visiting Scientist Yasunori Nomura Quantum Gravity, Cosmology, Particle Physics Assistant (concurrent) Chikako Ota Consultant, Division of Global Collaborations and Research Talent Development Consultant Kazuo Fujikawa Particle theory, Quantum science Consultant Koichi Yazaki Nuclear and Hadron Physics Consultant Takeo Inami Senior Visiting Scientists, Division of Fundamental Mathematical Science Senior Visiting Scientist Atsushi Mochizuki Theoretical Biology Senior Visiting Scientist Takashi Tsuboi Topology, Dynamical Systems Senior Visiting Scientist Gordon Baym Quantum Many-body Theory Senior Visiting Scientist Hiroshi Suito Applied Mathematics, Computational Fluid Dynamics Senior Visiting Scientist Wick C. Haxton Nuclear Astrophysics Senior Visiting Scientist Hideaki Aoyama Elementary Particle Theory, Mathematical Linguistics, Econophysics Senior Visiting Scientist Takashi Sakajo Applied Mathematics (Mathematical Fluid Dynamics) Senior Visiting Scientist Junichi Chikazoe Senior Visiting Scientist Koji Fujiwara Senior Visiting Scientist Makiko Sasada Senior Visiting Scientist Chong Sun Chu Visiting Scientists (iTHEMS Alumni), Division of Fundamental Mathematical Science Visiting Scientist Shun Furusawa Astrophysics, Nuclear Physics Visiting Scientist Masashi Tachikawa Cell Biology, Biophysics Visiting Scientist Yoshiyuki Inoue High Energy Astrophysics Visiting Scientist Takashi Okada Mathematical Biology Visiting Scientist Masaru Hongo Particle and Nuclear Physics, Nonequilibrium physics Visiting Scientist Ade Irma Suriajaya Analytic Number Theory Visiting Scientist Shingo Gibo Theoretical Biology, Nonlinear Oscillation, Acoustic Engineering Visiting Scientist Masahiro Nozaki Elementary Particle Physics, Quantum Information Visiting Scientist Kanato Goto High Energy Theory, String Theory, Quantum Gravity Visiting Scientist Nagisa Hiroshima Dark Matter, High Energy Astrophysics Visiting Scientist Hiroshi Yokota Polymer Physics Visiting Scientist Takuya Sugiura Theoretical Nuclear and Hadronic Physics Visiting Scientist Keita Mikami Mathematics, Analysis, Partial Differential Equations Visiting Scientist Hui Tong Nuclear Theory Visiting Scientist Naomi Tsuji Astrophysics Visiting Scientist Yukimi Goto Mathematics Visiting Scientist Takeru Yokota Theoretical Physics, Many-body Problems Visiting Scientist Kazuki Kannaka Mathematics Visiting Scientist Akira Harada Physics, Space Science Visiting Scientist Eiji Inoue Mathematics Visiting Scientist Yalong Cao Algebraic Geometry, Mathematical Physics Visiting Scientist Kotaro Murakami Physics Visiting Scientist Kohei Hayashi Probability Theory Visiting Scientist Pratik Nandy Quantum Chaos, Quantum Entanglement, AdS/CFT Visiting Scientist Lucy McNeill Astrophysics Visiting Scientist Akihisa Yamamoto Biomedical Engineering, Soft-matter Physics, Biophysics Visiting Scientists (Academia), Division of Fundamental Mathematical Science Visiting Scientist Koutarou Kyutoku Gravitational-wave Astronomy Visiting Scientist Hiroshi Kokubu Dynamical Systems and Applications Visiting Scientist Kentaro Takami Theoretical Astrophysics Visiting Scientist Yuki Kamiya Physics Visiting Scientist Yoichi Ikeda Hadron and Nuclear Physics Visiting Scientist Haozhao Liang Visiting Scientist Faisal Etminan Visiting Scientist Abhijit Chakraborty Complex Networks, Economic Networks, Statistical Physics Visiting Scientist Kenji Sasaki Visiting Scientist Takashi Inoue Visiting Scientist Tomoya Hayata Particle and Nuclear Physics Visiting Scientist / Visiting Scientist Kazuya Mameda Visiting Scientist Natsuki Tomida Visiting Scientist Shin Hayashi Mathematics, Topology Visiting Scientist Motoki Nakata Turbulence, Nonequilibrium dynamics, Plasmas, Applied Mathematics Visiting Scientist Kazuki Yoshida Theoretical Nuclear Physics, Nuclear Reaction theory Visiting Scientist Isao Ishikawa Visiting Scientist Kaori Fuyuto Visiting Scientist Toshifumi Noumi Visiting Scientist Masaki Harada Visiting Scientists (Industry), Division of Fundamental Mathematical Science Visiting Scientist Toshihiro Ota Mathematical Physics, Machine Learning Visiting Scientist Hirotaka Irie Quantum Computation, Mathematical Physics Visiting Scientist Shoichiro Tsutsui Visiting Scientist Yuta Kikuchi Elementary Particle Physics Visiting Scientist Clare West Visiting Scientists, Division of Global Collaborations and Research Talent Development Visiting Scientist Yosuke Kubota Mathematics, Index Theorem Visiting Scientist Hidetoshi Taya Physics Visiting Scientist Yuka Kotorii Mathematics, Topology Visiting Scientist Hiroki Kodama Topology, Dynamical Systems Visiting Scientist Gilles Ferrand Astrophysics Visiting Scientist Yongjia Huang High Energy Astrophysics, Gravitational Wave Astrophysics Visiting Scientist Hokuto Konno Mathematics, Geometry and Topology Visiting Scientist Hajime Sotani Nuclear Astrophysics Visiting Scientist Michiya Mori Mathematics, Physics Visiting Scientist Yuya Kusuki Physics Visiting Scientist Etsuko Itou Particle and Nuclear Physics, Lattice QCD, Quantum Computing Visiting Scientist Keiichi Morita Mathematical Biology, Evolutionary Community Ecology Visiting Scientist Shou Yoshikawa Algebraic Geometry Visiting Scientist Akira Matsumoto Theoretical Particle Physics, Lattice Gauge Theory, Quantum Computing Visiting Scientist Ermal Rrapaj Nuclear Astrophysics, Quantum Computing Visiting Scientist Seishiro Ono Quantum Condensed Matter Physics Visiting Scientist Misako Tatsuuma Planet Formation Theory Visiting Scientist Dongwook Ghim String Theory, Quantum Computation Visiting Scientist Yuki Fujimoto Student Trainee Intern, Division of Fundamental Mathematical Science Junior Research Associate / Student Trainee (concurrent) Soichiro Uemura Topology, Mathematical Physics Junior Research Associate / Student Trainee (concurrent) Jinyang Li Particle Physics, Machine Learning Junior Research Associate / Student Trainee (concurrent) Sho Yoshida Hadron Physics International Program Associate Iao-Fai Io Conformal Field Theory, Condensed Matter Theory International Program Associate Duc Truyen Le Quantum Computing, High Energy Physics, Theoretical Physics Student Trainee Rumi Hasegawa Staff, Office of the Center Director Office Director (concurrent) Tomoya Nagai R&D Administration, Science Communication Research Administrator Iriko Kaneko Research Administrative Support Staff (concurrent) Shuntaro Aoki Cosmology, Particle Physics Assistant Chikako Ota Assistant Hitomi Wada Assistant Tomoko Iwanami Assistant Nobuko Tanabe Assistant Keiko Ueda Assistant Junko Kamiya Assistant (concurrent) Yuko Kawatsu Administrative Part-time Worker Ⅱ Rieko Zasu Administrative Part-time Worker Ⅱ Kazuko Harada Administrative Part-time Worker Ⅱ Tokiko Okada Visitors
