Directors Director / Director (concurrent) Satoshi Iso Deputy Director / Director (concurrent) / Deputy Division Director (concurrent) Tsukasa Tada Theoretical Particle Physics Deputy Director / Deputy Division Director (concurrent) Yoshimasa Hidaka Theoretical Physics Deputy Director / Deputy Division Director (concurrent) Catherine Beauchemin Virophysics Deputy Director / Deputy Division Director (concurrent) Yasuyuki Kawahigashi Operator Algebras Deputy Director (concurrent) / Deputy Division Director (concurrent) Shigehiro Nagataki Extreme Universe Director Tetsuo Hatsuda Particle and Nuclear Physics Director (concurrent) / Director (concurrent) Tomoya Nagai R&D Administration, Science Communication Scientific Advisors Senior Advisor Shigefumi Mori Mathematics, Algebraic Geometry Senior Advisor Makoto Kobayashi Theoretical Particle Physics Senior Advisor Yoh Iwasa Mathematical Biology Senior Advisor Masato Wakayama Mathematics Coordinator Coordinator Tomoya Nagai R&D Administration, Science Communication Researchers, Division of Fundamental Mathematical Science Senior Research Scientist Takumi Doi Computational Particle and Nuclear Physics Senior Research Scientist Gen Kurosawa Theoretical Biology Senior Research Scientist Yuki Yokokura Theoretical Physics (Quantum Gravity, Black Hole, Thermodynamics) Senior Research Scientist Ryosuke Iritani Mathematical Biology, Evolutionary Ecology Senior Research Scientist Shunji Matsuura Quantum Computing Senior Research Scientist Ching-Kai Chiu Condensed Matter Physics Senior Research Scientist Ryo Namba Theoretical Cosmology, Gravitational Theory Senior Research Scientist Masazumi Honda Theoretical Physics, High Energy Theory, Quantum Computation, 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 Derek Beattie Inman Theoretical and Computational Cosmology Research Scientist Misako Tatsuuma Planet Formation Theory Research Scientist Camilia Demidem Theoretical and Computational Approaches in High-Energy Astrophysics Research Scientist Lingxiao Wang Particle and Nuclear Physics, Machine Learning, AI for Science Research Scientist Shuntaro Aoki Cosmology, Particle Physics Research Scientist Sotaro Sugishita Research Scientist Vladimir Sosnilo Homotopy Theory, Category Theory, Algebraic Geometry Research Scientist (concurrent) Akira Mizuta 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 Special Postdoctoral Researcher Yuto Yamamoto Algebraic Geometry, Tropical Geometry Special Postdoctoral Researcher Kan Kitamura Operator Algebras, Quantum Symmetries Special Postdoctoral Researcher Takashi Satomi Harmonic Analysis, Functional Analysis 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 Osamu Fukushima Theoretical Physics, Quantum Field Theory, Integrable System Special Postdoctoral Researcher Kenji Okubo Evolutionary Biology, Theoretical Biology, Mathematical Biology, Biophysics, Network Science, Cultural Evolution, Mathematical Archaeology, Mathematical Linguistics 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 Shoto Aoki Lattice Gauge Theory, Mathematical Physics Special Postdoctoral Researcher Chi-Kang Chang Algebraic Geometry, Birational Geometry Special Postdoctoral Researcher Álvaro Pastor Gutiérrez High-Energy Physics, Quantum Field Theory, BSM Physics, Non-Perturbative Methods Special Postdoctoral Researcher (concurrent) Akira Dohi Nuclear Astrophysics Postdoctoral Researcher Puttarak Jai-akson Theoretical Physics, Classical/Quantum Gravity Postdoctoral Researcher Pratik Nandy Quantum Chaos, Quantum Entanglement, AdS/CFT Postdoctoral Researcher Dongwook Ghim String Theory, Quantum Computation Postdoctoral Researcher Amaury Micheli Theoretical Cosmology, Quantum Entanglement Postdoctoral Researcher Rento Yamada Postdoctoral Researcher Isaac Planas Sitja Visiting Researcher Robert Baird Evolution, Genetics, Cell Biology 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 Student Trainee Ciarán O'Connor AI for Science Team, Division of Applied Mathematical ScienceDetails Team Director (concurrent) Satoshi Iso 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 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 (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 Yuta Sekino Condensed Matter Physics, Ultracold Atoms, Quantum Simulation Postdoctoral Researcher Congcong Le Condensed Matter Physics, Materials Sciences Postdoctoral Researcher Xiaoyang Wang Quantum Computation, High Energy Physics, Computer Science JSPS PD Researcher Tomoya Naito Quantum Many-Body Problems (Computational), Nuclear Physics Research Consultant Masanao Ozawa Foundations of Quantum Theory, Quantum Information Visiting Scientist Atsushi Iriki Cognitive Neurobiology Visiting Scientist Noritaka Shimizu Coordinator (concurrent) Shinichiro Fujii Nuclear Theory, Project Management Junior Research Associate / Student Trainee (concurrent) Tingyu Zhang Junior Research Associate / Student Trainee (concurrent) Haruki Emori Foundations of Quantum Theory, Quantum measurement theory, Quantum Information theory Student Trainee Minglong Li Assistant Yuko Kawatsu Assistant (concurrent) Masako Hirata Assistant (concurrent) Rieko Yagi Assistant (concurrent) Masae Takano Assistant (concurrent) Kazue Akiyama Assistant (concurrent) Machiko Ishigaki 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 Xuyang Zhao Machine Learning for Medical 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 Visiting Scientist Yuki Goshima Visiting Scientist Keita Koseki Technical Staff I Ayaka Hananoe Technical Staff Ⅱ (concurrent) Ayaka Mori Technical Staff Ⅱ (concurrent) Mikiko Nakanishi Research Part-time Worker Ⅱ Soki Osawa Medical Science Deep Learning Team, Division of Applied Mathematical ScienceDetails Team Director Jun Seita Senior Research Scientist Naoki Nonaka Postdoctoral Researcher Dorothy Ellis Biostatistics, Omics (Multiomics, Genomics, Epigenomics, Transcriptomics), Bioinformatics, Machine Learning Technical Staff II (concurrent) Kazumi Yamada Prediction Science Research Team, Division of Applied Mathematical ScienceDetails Team Director (concurrent) Takemasa Miyoshi Data Assimilation Senior Research Scientist (concurrent) Shigenori Otsuka Data Assimilation Research Scientist Arata Amemiya Data Assimilation, Numerical Weather Prediction Research Scientist (concurrent) Shun Ohishi Research Scientist (concurrent) Michael Goodliff Data Assimilation, Machine Learning, Applied Mathematics Research Scientist (concurrent) James Taylor Research Scientist (concurrent) Tristan Hascoet Postdoctoral Researcher Yuta Tarumi Postdoctoral Researcher Unashish Mondal Data Assimilation Senior Visiting Scientist Takashi Sakajo Applied Mathematics (Mathematical Fluid Dynamics) Senior Visiting Scientist Tomoki Ushiyama Visiting Scientist Luciano Vidal Visiting Scientist Menglu Qin Visiting Scientist Pierre Tandeo Visiting Scientist Abdul Wahid Mohamed Rasmy Visiting Scientist Daichi Kitahara Visiting Scientist Juan Ruiz Research Fellow Marina Lagos Research Fellow Matsudo Cynthia Research Fellow Sebastian Lopez Research Fellow Gimena Casaretto Research Fellow Leandro Aguirre Research Fellow Martin Rugna Research Associate Shungo Tonoyama Research Associate (concurrent) Tatsuro Iwanaka Technical Staff I (concurrent) Ishimizu Takahisa Assistant (concurrent) Yukie Komori Assistant (concurrent) Saeko Imano Mathematical Social Science Team, Division of Applied Mathematical Science Team Director (concurrent) Tetsuo Hatsuda Particle and Nuclear Physics Senior Research Scientist (concurrent) Yohsuke Murase Kyushu University Collaboration Team, Division of Global Collaborations and Research Talent DevelopmentDetails Team Director Ryoko Oishi-Tomiyasu RIKEN-Berkeley Center, Division of Global Collaborations and Research Talent DevelopmentDetails RIKENｰBerkeley Center Director (concurrent) Shigehiro Nagataki Extreme Universe Postdoctoral Researcher Yan Lyu Hadronic Physics, Lattice Gauge Field Theory Postdoctoral Researcher Jan Schuette-Engel Particle Physics, Astroparticle Physics, Cosmology Postdoctoral Researcher Gabriele Di Ubaldo Theoretical Physics, Conformal Field Theory, Quantum Gravity, Quantum Chaos Postdoctoral Researcher Yuuka Kanakubo High-Energy Physics, Nuclear Theory Postdoctoral Researcher Yuki Fujimoto Visiting Scientist Yasunori Nomura Quantum Gravity, Cosmology, Particle Physics Research Consultants, Division of Fundamental Mathematical Science Research Consultant Kazuo Fujikawa Particle theory, Quantum science Research Consultant Koichi Yazaki Nuclear and Hadron Physics Research 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 Wick C. Haxton Nuclear Astrophysics Senior Visiting Scientist Hiroshi Suito Applied Mathematics, Computational Fluid Dynamics Senior Visiting Scientist Hideaki Aoyama Elementary Particle Theory, Mathematical Linguistics, Econophysics Senior Visiting Scientist Hidetoshi Nishimori Statistical Mechanics, Quantum Computation Senior Visiting Scientist Takashi Sakajo Applied Mathematics (Mathematical Fluid Dynamics) Senior Visiting Scientist Junichi Chikazoe Senior Visiting Scientist Koji Fujiwara Senior Visiting Scientist (concurrent) Kazuyuki Aihara Mathematical Engineering Visiting Scientists (SUURI-COOL), Division of Fundamental Mathematical Science Visiting Scientist Masato Itami Statistical Physics Visiting Scientist Sonia Mahmoudi Mathematics, Topology Visiting Scientists (iTHEMS Alumni), Division of Fundamental Mathematical Science Visiting Scientist Shun Furusawa Astrophysics, Nuclear Physics Visiting Scientist Hidetoshi Taya Physics Visiting Scientist Yosuke Kubota Mathematics, Index Theorem Visiting Scientist Masato Taki Mathematical Physics, Machine Learning Visiting Scientist Masashi Tachikawa Cell Biology, Biophysics Visiting Scientist Yoshiyuki Inoue High Energy Astrophysics Visiting Scientist Jeffrey Fawcett Genome Evolution Visiting Scientist Ade Irma Suriajaya Analytic Number Theory Visiting Scientist Don Warren Cosmic Rays, Gamma-ray Bursts, Virology Visiting Scientist Takashi Okada Mathematical Biology Visiting Scientist Tomoki Ozawa Condensed Matter Physics, AMO Physics, Topological Insulator Visiting Scientist Masaru Hongo Particle and Nuclear Physics, Nonequilibrium physics Visiting Scientist Yuka Kotorii Mathematics, Topology Visiting Scientist Shingo Gibo Theoretical Biology, Nonlinear Oscillation, Acoustic Engineering Visiting Scientist Gilles Ferrand Astrophysics Visiting Scientist Masahiro Nozaki Elementary Particle Physics, Quantum Information Visiting Scientist Yongjia Huang High Energy Astrophysics, Gravitational Wave Astrophysics Visiting Scientist Nagisa Hiroshima Dark Matter, High Energy Astrophysics Visiting Scientist Takuya Sugiura Theoretical Nuclear and Hadronic Physics Visiting Scientist Hokuto Konno Mathematics, Geometry and Topology Visiting Scientist Kenta Sato Mathematics, Algebraic Geometry Visiting Scientist Kanato Goto High Energy Theory, String Theory, Quantum Gravity Visiting Scientist Hiroshi Yokota Polymer Physics Visiting Scientist Keita Mikami Mathematics, Analysis, Partial Differential Equations Visiting Scientist Hajime Sotani Nuclear Astrophysics Visiting Scientist Euki Yazaki Genome Evolution, Molecular phylogeny, Protistology Visiting Scientist Naomi Tsuji Astrophysics Visiting Scientist Masaki Taniguchi Mathematics, Topology Visiting Scientist Hui Tong Nuclear Theory Visiting Scientist Yukimi Goto Mathematics Visiting Scientist Takeru Yokota Theoretical Physics, Many-body Problems Visiting Scientist Yuya Kusuki Physics Visiting Scientist Yingying Xu Mathematical Sciences Visiting Scientist Naritaka Oshita Quantum/Classical Gravity, Cosmology, Quantum Field Theory Visiting Scientist Eiji Inoue Mathematics Visiting Scientist Kazuki Kannaka Mathematics Visiting Scientist Akira Harada Physics, Space Science Visiting Scientist Michiya Mori Mathematics, Physics Visiting Scientist Etsuko Itou Particle and Nuclear Physics, Lattice QCD, Quantum Computing Visiting Scientist Yalong Cao Algebraic Geometry, Mathematical Physics Visiting Scientist Jizhou Li Chaos and Dynamical Systems, Virophysics Visiting Scientist Kotaro Murakami Physics 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 Maria Manuela Saez Neutrino Physics, Astroparticles Visiting Scientist Kohei Hayashi Probability Theory 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 Shinya Wanajo Cosmo-nuclear Science Visiting Scientist Koutarou Kyutoku Gravitational-wave Astronomy Visiting Scientist Hiroshi Kokubu Dynamical Systems and Applications Visiting Scientist Christopher Bourne Mathematics, Operator Algebras, Topological Phases Visiting Scientist Koya Sakakibara Numerical Analysis, Mathematical Fluid Dynamics Visiting Scientist Kentaro Takami Theoretical Astrophysics Visiting Scientist Yuji Sakai Theoretical Biology Visiting Scientist Shunsuke Kobayashi Applied mathematics Visiting Scientist Takahiro Doi Visiting Scientist Tetsuo Hyodo Physics Visiting Scientist Yuki Kamiya Physics Visiting Scientist Yoichi Ikeda Hadron and Nuclear Physics Visiting Scientist Shingo Iwami Mathematical Sciences, Life Sciences Visiting Scientist Hiroshi Suzuki Visiting Scientist Takashi Inoue Visiting Scientist Wataru Souma Visiting Scientist Abhijit Chakraborty Complex Networks, Economic Networks, Statistical Physics Visiting Scientist Haozhao Liang Visiting Scientist Faisal Etminan Visiting Scientist Tomoya Hayata Particle and Nuclear Physics Visiting Scientist Kenji Sasaki Visiting Scientist / Visiting Scientist Kazuya Mameda Visiting Scientist Natsuki Tomida Visiting Scientist Shin Hayashi Mathematics, Topology Visiting Scientist Motoki Nakata Plasma Physics, Turbulence, Complex Systems, Applied Mathematics Visiting Scientist Tomonori Ugajin Visiting Scientist Koichi Murase Visiting Scientist Parikshit Junnarkar Visiting Scientist Kazuki Yoshida Theoretical Nuclear Physics, Nuclear Reaction theory Visiting Scientist Daniel Kasen Visiting Scientist Isao Ishikawa Visiting Scientists (Industry), Division of Fundamental Mathematical Science Visiting Scientist Hiroyasu Miyazaki Arithmetic and Algebraic Geometry Visiting Scientist Toshihiro Ota Mathematical Physics, Machine Learning Visiting Scientist Hirotaka Irie Quantum Computation, Mathematical Physics Visiting Scientist Shinya Gongyo Physics Visiting Scientist Shoichiro Tsutsui Visiting Scientist Yuta Kikuchi Elementary Particle Physics Visiting Scientist Clare West Visiting Scientist Shotaro Funai AI (Machine Learning), Brain Science, Theoretical Physics 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 International Program Associate Qianteng Zhu Particle and Nuclear Physics, Machine Learning, AI for Science International Program Associate Iao-Fai Io Conformal Field Theory, Condensed Matter Theory Research Part-time Worker Ⅰ (concurrent) / Student Trainee Keiichi Morita Mathematical Biology, Evolutionary Community Ecology Student Trainee Rumi Hasegawa Student Trainee Daeho Park Hadron Physics, Algorithm, AI Student Trainee George Shillcock Staff, Office of the Center Director Research Administrator Iriko Kaneko Research Administrative Support Staff (concurrent) Shuntaro Aoki Cosmology, Particle Physics Assistant Hitomi Wada Assistant Chikako Ota 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
