Featured News
Interdisciplinary Theoretical and Mathematical Sciences Program (iTHEMS) is an international research program at RIKEN. It facilitates close collaborations among researchers from different disciplines in theoretical, mathematical and computational sciences. The ultimate goal of iTHEMS is to unravel the mystery of the Universe, matter, and life, as well as to solve key problems in modern society through interdisciplinary approaches.
Upcoming Events
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Workshop In Session
Pebbles in Planet Formation
February 10 (Mon) - 13 (Thu), 2025
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Seminar Tomorrow
Mathematical Studies on Human Cooperation
February 12 (Wed) at 15:00 - 17:00, 2025
Yohsuke Murase (Research Scientist, Discrete Event Simulation Research Team, RIKEN Center for Computational Science (R-CCS))
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Seminar
Application of genetics and genomics to breeding
February 13 (Thu) at 16:00 - 17:30, 2025
Jeffrey Fawcett (Chief Scientist, Regional Fish Institute, Ltd.)
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Seminar
Linking quantum error correction and gauge theories with quantum reference frames
February 14 (Fri) at 10:30 - 11:30, 2025
Philipp Hoehn (Assistant Professor, Okinawa Institute of Science and Technology Graduate University (OIST))
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Seminar
Operator-algebraic approach to point processes
February 14 (Fri) at 15:00 - 17:00, 2025
Ryosuke Sato (JSPS Postdoctoral Research Fellow, Faculty of Science and Engineering, Chuo University)
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Colloquium
MACS 10th Anniversary Colloquium & 2024 MACS Achievement Report Meeting
February 19 (Wed) at 14:45 - 18:30, 2025
Hiroshi Kokubu (Executive Vice-President, Kyoto University)
Yoshiko Takahashi (Professor, Division of Biological Sciences, Graduate School of Science, Kyoto University) -
Seminar
The Topology, Geometry and Physics of non-Hausdorff manifolds
February 19 (Wed) at 15:00 - 17:00, 2025
O'Connell David (Ph.D. Student, Okinawa Institute of Science and Technology Graduate University (OIST))
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Seminar
How to define a Majorana fermion?
February 20 (Thu) at 13:00 - 14:30, 2025
Kazuo Fujikawa (Professor Emeritus, The University of Tokyo)
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Seminar
Exploring the evolutionary fate of a mutualistic community using automated microbial culture system
February 20 (Thu) at 16:00 - 17:00, 2025
Junya Sunagawa (Ph.D. Student, Graduate School of Life Science, Hokkaido University)
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Seminar
Ubiquity of geometric Brascamp--Lieb data
February 21 (Fri) at 15:00 - 17:00, 2025
Hiroshi Tuji (JSPS Research Fellow PD, Graduate School of Science and Engineering, Saitama University)
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Workshop
Asymptotics in astrophysics iTHEMS workshop
February 25 (Tue) - 28 (Fri), 2025
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Seminar
Genome and Sex Chromosome Analyses of Japanese Frogs Carrying Both XY and ZW Chromosomes Within the Same Species
February 27 (Thu) at 16:00 - 17:00, 2025
Yukako Katsura (Assistant Professor, Center for the Evolutionary Origins of Human Behavior, Kyoto University)
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Workshop
RIKEN-Nara Women's University Joint Diversity Promotion Workshop 2025
March 3 (Mon) - 4 (Tue), 2025
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Workshop
iTHEMS Cosmology Forum 3 - (P)reheating the primordial Universe
March 4 (Tue) - 5 (Wed), 2025
Seishi Enomoto (Postdoctoral Researcher, College of Engineering Science, Yokohama National University)
John T. Giblin (Professor, Department of Physics, Kenyon College, USA)
Kyohei Mukaida (Assistant Professor, Theory Center, High Energy Accelerator Research Organization (KEK)) -
Colloquium
Smart heuristics of a single-celled organism
March 7 (Fri) at 14:00 - 15:30, 2025
Toshiyuki Nakagaki (Professor, Research Institute for Electronic Science, Hokkaido University)
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Workshop
Third Workshop on Density Functional Theory: Fundamentals, Developments, and Applications (DFT2025)
March 25 (Tue) - 27 (Thu), 2025
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Seminar
Stability of nonsingular black holes
March 27 (Thu) at 15:00 - 16:30, 2025
Shinji Tsujikawa (Professor, Graduate School of Advanced Science and Engineering, Faculty of Science and Engineering, Waseda University)
Opportunities
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Call for applications for the position of Special Postdoctoral Researcher (SPDR) for FY 2026
Deadline: April 3, 2025
RIKEN is currently accepting applications for the FY 2026 Special Postdoctoral Researcher (SPDR) Program, from young, creative, independent researchers who will be a powerful force in furthering RIKEN’s research activities.
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Seeking an Administrative Part-time Worker (W24268)
Deadline: Open until filled
Administrative Part-time Worker Ⅰ or Ⅱ, one position. iTHEMS is seeking a Administrative Part-time Worker to support common project operations, assist with administrative tasks within research teams, provide support for research activities, and help with the organization and management of meetings and events hosted or co-hosted by the project.
Latest News
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2025-02-10
Hot TopicFarewell message from Nozomi Kakinuma
Our administrative staff member, Nozomi Kakinuma, will be leaving RIKEN on February 14 to return to academic research. We will greatly miss her and wish her all the best in her future endeavors. Here is a message from Nozomi: Since April last year, I have been part of iTHEMS as a staff member in the iTHEMS Promotion Office. However, I have recently decided to pursue a career in research. Through coffee meetings, where researchers passionately discussed their work and explained it in an accessible way, I came to deeply appreciate both the excitement and significance of fundamental research. Inspired by these experiences, I am now committed to dedicating myself to research. I am truly grateful for all the support and guidance I have received. Thank you very much.
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2025-02-10
Press ReleaseWho Is at Higher Risk of Progression from Acute Liver Injury to Acute Liver Failure?
A collaborative research group, including Professor Shingo Iwami (Visiting Scientist, iTHEMS / Professor, Graduate School of Science, Nagoya University), has applied artificial intelligence (AI) technology to clinical research. Through joint research, they discovered that patients with acute liver injury can be classified into three groups based on their treatment response. Furthermore, they successfully developed the world's first AI model capable of predicting which group a patient belongs to using clinical data such as initial blood test results. For more details, please visit Kyushu University’s website via the related links.
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2025-02-06
Paper of the WeekWeek 2, February 2025
Title: Investigating the Bouncing Barrier with Collision Simulations of Compressed Dust Aggregates Author: Haruto Oshiro, Misako Tatsuuma, Satoshi Okuzumi, Hidekazu Tanaka arXiv: http://arxiv.org/abs/2502.03107v1 Title: Renormalization-group approach to the Kohn-Luttinger superconductivity: Amplification of the pairing gap from $\ell^4$ to $\ell$ Author: Yuki Fujimoto arXiv: http://arxiv.org/abs/2502.01169v1 Title: $NJ/ψ$ and $Nη_c$ interactions from lattice QCD Author: Yan Lyu, Takumi Doi, Tetsuo Hatsuda, Takuya Sugiura arXiv: http://arxiv.org/abs/2502.00054v1 Title: Identification of finite circular metric spaces by magnitude and Riesz energy Author: Hiroki Kodama, Jun O'Hara arXiv: http://arxiv.org/abs/2408.06091v3 Title: Computing theta-dependent mass spectrum of the 2-flavor Schwinger model in the Hamiltonian formalism Author: Akira Matsumoto, Etsuko Itou, Yuya Tanizaki arXiv: http://arxiv.org/abs/2501.18960v2 Title: Novel Lattice Formulation of 2D Chiral Gauge Theory via Bosonization Author: Okuto Morikawa, Soma Onoda, Hiroshi Suzuki arXiv: http://arxiv.org/abs/2501.18949v1 Title: Biological invasion by the cycad-specific scale pest Aulacaspis yasumatsui (Diaspididae) into Cycas revoluta (Cycadaceae) populations on Amami-Oshima and Okinawa-jima, Japan Author: Benjamin E. Deloso, José Said Gutiérrez-Ortega, Jui-Tse Chang, Yasuko Ito-Inaba, Anders J. Lindström, L. Irene Terry, John Donaldson, William Tang, Ronald D. Cave, Jorge Antonio Gómez-Díaz, Vanessa M. Handley, M. Patrick Griffith, Thomas E. Marler Journal Reference: Plant Species Biology doi: https://doi.org/10.1111/1442-1984.12505 Title: Spacetime profile of electromagnetic fields in intermediate-energy heavy-ion collisions Author: Hidetoshi Taya arXiv: http://arxiv.org/abs/2501.18171v1
Upcoming Visitors
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Visiting
Paul Martens
Postdoctoral Fellow, Department of Physics, The Chinese University of Hong Kong, ChinaTerm: January 29 (Wed) - February 25 (Tue), 2025Visiting Place: RIKEN Wako Campus -
Javier Pagan Lacambra
Ph.D. Student, Okinawa Institute of Science and Technology Graduate University (OIST)Term: February 14 (Fri) - 21 (Fri), 2025Visiting Place: RIKEN Wako Campus -
Gokcumen Omer
Professor, Department of Biological Sciences, University at Buffalo, USATerm: February 24 (Mon) - 25 (Tue), 2025Visiting Place: RIKEN Wako Campus -
Nobuo Iida
Postdoctoral Fellow, Department of Mathematics, School of Science, Institute of Science TokyoTerm: February 24 (Mon) - 28 (Fri), 2025Visiting Place: RIKEN Wako Campus -
Tomo Takahashi
Professor, Department of Physics, Saga UniversityTerm: March 3 (Mon) - 6 (Thu), 2025Visiting Place: RIKEN Wako Campus -
John T. Giblin
Professor, Department of Physics, Kenyon College, USATerm: March 4 (Tue) - 7 (Fri), 2025Visiting Place: RIKEN Wako Campus -
Gokcumen Omer
Professor, Department of Biological Sciences, University at Buffalo, USATerm: March 6 (Thu) - 7 (Fri), 2025Visiting Place: RIKEN Wako Campus