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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Seminar
Quantitative Characterization of the Cellular Physical Properties to Understand the Organ Regeneration and Cancer Progression
January 23 (Thu) at 16:00 - 17:00, 2025
Takahisa Matsuzaki (Assistant Professor, Department of Applied Physics, Graduate School of Engineering, Osaka University / TechnoArena Associate Professor, Center for Future Innovation, Graduate School of Engineering, Osaka University)
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Seminar
Seminar Series for Junior and Senior High School Girls: 'What Should Students Prepare for Their Future in the Age of AI?'
January 25 (Sat) at 14:00 - 18:30, 2025
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Seminar
Architectures and algorithms for early FTQC
January 27 (Mon) at 16:00 - 17:15, 2025
Andreas Thomasen (R&D Engineer, QunaSys Inc.)
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Seminar
Quantum Error Mitigation
January 28 (Tue) - 29 (Wed), 2025
Suguru Endo (Ph.D. Researcher, Research Center for Theoretical Quantum Information, NTT Computer and Data Science Laboratories)
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Seminar
D-modules and the Riemann-Hilbert correspondence as a foundation for mixed Hodge modules
January 31 (Fri) at 14:00 - 16:00, 2025
Takahiro Saito (Assistant Professor, Faculty of Science and Engineering, Chuo University)
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Seminar
Introduction to the stochastic process and its application in physics
February 4 (Tue) - 5 (Wed), 2025
Kiyoshi Kanazawa (Associate Professor, Division of Physics and Astronomy, Graduate School of Science, Kyoto University)
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Seminar
Master equations for general non-Markovian processes: the Hawkes process and beyond
February 5 (Wed) at 16:30 - 18:00, 2025
Kiyoshi Kanazawa (Associate Professor, Division of Physics and Astronomy, Graduate School of Science, Kyoto University)
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Seminar
Fireworks in the cosmos: The Hidden Power of Nuclear Reactions
February 7 (Fri) at 14:00 - 15:15, 2025
Irin Sultana (Postdoctoral Researcher, Department of Physics, Central Michigan University, USA)
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Seminar
Investigating the Crust Urca Process in Accretion Neutron Stars: Implications for Superburst Ignition and Hot Cooling Curve of MAXI J0556-332
February 7 (Fri) at 16:00 - 17:15, 2025
Hao Huang (Ph.D. Student, Institute of Modern Physics, China)
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Workshop
Pebbles in Planet Formation
February 10 (Mon) - 13 (Thu), 2025
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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
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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Workshop
iTHEMS Cosmology Forum 3 - (P)reheating the primordial Universe
March 4 (Tue) at 9:30 - 17:35, 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)) -
Workshop
Third Workshop on Density Functional Theory: Fundamentals, Developments, and Applications (DFT2025)
March 25 (Tue) - 27 (Thu), 2025
Opportunities
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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.
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Seeking a few Postdoctoral Researchers or Research Scientists (W24214)
Deadline: Open until filled
Postdoctoral Researcher or Research Scientist, a few positions. iTHEMS is seeking Postdoctoral Researchers or Research Scientists in the field of theoretical physics.
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Seeking a few Research Scientists or Senior Research Scientists (W24208)
Deadline: Open until filled
Research Scientist or Senior Research Scientist, a few positions. iTHEMS is seeking young researchers with strong motivation to actively promote interdisciplinary research and demonstrate leadership.
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Seeking a few Research Scientists or Senior Research Scientists (W24193)
Deadline: Open until filled
Research Scientist or Senior Research Scientist, a few positions. iTHEMS is seeking Research Scientists or Senior Research Scientists to advance research in mathematics, including algebra, geometry, and analysis.
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Seeking a few Research Scientists or Senior Research Scientists (W24189)
Deadline: Open until filled
Research Scientist or Senior Research Scientist, a few positions. iTHEMS is seeking Research Scientists or Senior Research Scientists in the fields of theoretical biology, mathematical biology, computational biology, and biophysics.
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Seeking a few Research Scientists or Senior Research Scientists (W24168)
Deadline: Open until filled
Research Scientist or Senior Research Scientist, a few positions. iTHEMS is seeking applications for Research Scientists or Senior Research Scientists in the field of applied mathematics.
Latest News
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2025-01-17
Hot TopicFarewell message from Lucy McNeill
Our colleague Lucy McNeill has moved on to a new career as a Hakubi Assistant Professor at The Hakubi Center for Advanced Research, Kyoto University as of January 16, 2025. We all will miss her and wish her the best of luck in her latest endeavor. Here is a message from Lucy McNeill: During my 1 year at iTHEMS as a postdoctoral researcher, I was presented with opportunities to further both my own research and professional development at every turn. I am especially grateful for iTHEMS directors and colleagues' support in starting the "asymptotics in astrophysics" iTHEMS study group, ample chances to travel abroad to share my work, and the frequent international workshops organised at iTHEMS. In particular, workshops co-hosted with RIKEN-Berkeley left this lasting impression on me; that new stellar astrophysics and supernova physics paradigms are creatively and efficiently conceived when physicists, mathematicians and data scientists join forces to solve longstanding astrophysical puzzles. iTHEMS is such a special place where those necessary first interactions are regularly facilitated, and I am sad to leave. But... "I'll be back"!
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2025-01-16
Paper of the WeekWeek 3, January 2025
Title: Direct Monte Carlo computation of the 't~Hooft partition function Author: Okuto Morikawa, Hiroshi Suzuki arXiv: http://arxiv.org/abs/2501.07042v1 Title: Impact of dark matter distribution on neutron star properties Author: Ankit Kumar, Hajime Sotani arXiv: http://arxiv.org/abs/2501.07052v1 Title: Physics-Driven Learning for Inverse Problems in Quantum Chromodynamics Author: Gert Aarts, Kenji Fukushima, Tetsuo Hatsuda, Andreas Ipp, Shuzhe Shi, Lingxiao Wang, Kai Zhou Journal Reference: Nature Reviews Physics (2025) doi: https://doi.org/10.1038/s42254-024-00798-x arXiv: http://arxiv.org/abs/2501.05580v1
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2025-01-10
Hot TopicFarewell message from Yantao Wu
Our colleague Yantao Wu will move on to a new career as a faculty member at Institute of Physics, Chinese Academy of Sciences as of January 10, 2025. We all will miss him and wish him the best of luck in his latest endeavor. Here is a message from Yantao Wu: I joined iTHEMS in June 2021 as a RIKEN-Berkeley fellow, and have stayed here for three years and a half now. iTHEMS is a precious rare place in the academic world, where there seems to be no responsibility, no one telling you what to do, and infinite space for travel; where there seems to be a curious mind on every subject and every question ought to be asked. The interdisciplinary nature of the group has forever left an imprint on me, and I will always remember the vivid biological facts and mathematical tricks that I have learned here. Entering as a condensed matter physicist and leaving as a condensed matter physicist, my heart will always have a spot for the particle theory which I have learned from here. It has been an unexpected, yet very pleasant mix. Sadly, it appears that every gathering ends somewhere, and I need to leave this warm and protective bubble to a new place, to really enter the grown world of independent research and start my own group. iTHEMS will always remain as a source of lasting encouragement. I will move to the Institute of Physics, Chinese Academy of Sciences in Beijing to start a faculty position. If you ever want to visit, please let me know you are from iTHEMS and I will make you a cup of tea (amidst taking you to the great wall and covering your travel costs.)
Upcoming Visitors
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John T. Giblin
Professor, Department of Physics, Kenyon College, USATerm: March 4 (Tue) - 7 (Fri), 2025Visiting Place: RIKEN Wako Campus