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
Deep Learning for Estimating Two-Body Interactions in Mixed-Species Collective Motion
May 9 (Thu) at 16:00 - 17:00, 2024
Masahito Uwamichi (Project Researcher, Graduate School of Arts and Sciences, The University of Tokyo)
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Seminar
Quantum Computing in Omics Medicine
May 10 (Fri) at 16:00 - 17:15, 2024
Tatsuhiko Tsunoda (Professor, Department of Biological Sciences, Graduate School of Science, The University of Tokyo)
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Workshop
Nuclear Fusion and its Interdisciplinary Fields
May 14 (Tue) at 9:00 - 18:15, 2024
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Workshop
iTHEMS Cosmology Forum 1 - Cosmic Birefringence and Parity Violation in the Universe
May 14 (Tue) at 9:30 - 18:00, 2024
Toshiya Namikawa (Project Assistant Professor, Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU), The University of Tokyo)
Maresuke Shiraishi (Associate Professor, Suwa University of Science)
Fuminobu Takahashi (Professor, Department of Physics, Graduate School of Science, Tohoku University) -
Seminar
Black hole graviton and quantum gravity
May 16 (Thu) at 15:00 - 16:30, 2024
Yusuke Kimura (Research Scientist, Analytical quantum complexity RIKEN Hakubi Research Team, RIKEN Center for Quantum Computing (RQC))
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Workshop
iTHEMS-YITP Workshop: Bootstrap, Localization and Holography
May 20 (Mon) - 24 (Fri), 2024
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Colloquium
The New World of Spin Zero - Some Novel Approaches at QUP for Experimental Particle Cosmology -
May 28 (Tue) at 13:30 - 15:00, 2024
Masashi Hazumi (Director, Professor, International Center for Quantum-field Measurement Systems for Studies of the Universe and Particles (QUP), High Energy Accelerator Research Organization (KEK))
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Workshop
Recent Developments and Challenges in Topological Phases
June 3 (Mon) - 14 (Fri), 2024
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Seminar
Finding and understanding disease-causing genetic mutations
June 20 (Thu) at 16:00 - 17:00, 2024
Kojima Shohei (Special Postdoctoral Researcher, Genome Immunobiology RIKEN Hakubi Research Team, RIKEN Center for Integrative Medical Sciences (IMS))
Opportunities
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Seeking a few Postdoctoral Researchers (W24022)
Deadline: Open until filled
Postdoctoral Researcher, a few positions. iTHEMS is seeking postdoctoral researcher(s) in ecology, evolutionary biology, and biodviersity.
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Seeking a few Research Scientists or Senior Research Scientists (W23336)
Deadline: Open until filled
Research Scientist or Senior Research Scientist, a few positions. iTHEMS is seeking research scientist(s) or senior research scientist(s) in mathematical sciences including pure mathematics, applied and industrial mathematics.
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Seeking Research Scientists or Senior Research Scientists (W23178)
Deadline: Open until filled
Research Scientist or Senior Research Scientist, a few positions. iTHEMS is seeking research scientist(s) or senior research scientist(s) as part of its "Mathematical Sciences and Medicine" initiative.
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Seeking Postdoctoral Researcher, Research Scientist and Senior Research Scientist (W23143)
Deadline: Open until filled
Postdoctoral Researcher, Research Scientist or Senior Research Scientist, about 10 positions. This call is open to researchers in any field who wish to participate in RIKEN Quantum.
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Seeking a few Postdoctoral Researchers (RIKEN-Berkeley Fellow associated with N3AS) (W22284)
Deadline: Open until filled
Postdoctoral Researcher (RIKEN-Berkeley Fellow associated with N3AS), a few positions. Theoretical works associated with neutrino physics, nucleosynthesis, dense matter and neutron stars, dark matter, astrophysical simulations, lattice QCD simulations and related fields. Successful applicants will work and spend the first three months at the RIKEN Wako campus, and the remainder of the years at the RIKEN Berkeley Center at the University of California, Berkeley on a long term business trip. The appointments of the RIKEN Berkeley Fellow are made through RIKEN iTHEMS.
Latest News
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2024-04-25
Paper of the WeekWeek 4, April 2024
Title: Digital Quantum Simulation for Spectroscopy of Schwinger Model Author: Dongwook Ghim, Masazumi Honda arXiv: http://arxiv.org/abs/2404.14788v1 Title: A mathematical model of thermoplastic elastomers for analysing the topology of microstructures and mechanical properties during elongation Author: Hiroki Kodama, Hiroshi Morita, Motoko Kotani Journal Reference: Proc. R. Soc. A 480:2286 (2024) doi: https://doi.org/10.1098/rspa.2023.0389
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2024-04-25
Seminar ReportDEEP-IN Working Group Kick-Off Meeting
The DEEP-IN Working Group commenced its kick-off meeting on April 23, 2024, with a hybrid gathering of more than 40 participants including 19 members. The session began with opening remarks from Lingxiao Wang, self-introductions from each member, and a concise introduction to the applications of deep learning for solving inverse problems in sciences. Notable speakers included Akinori Tanaka from RIKEN-AIP/iTHEMS, who gave a vivid introduction to machine learning and his current work, and Gert Aarts from Swansea University, who explored lattice field theories with deep learning, which could also benefit deep learning. Márcio Ferreira introduced the conditional variational auto-encoder(cVAE) for building dense matter equation of states from neutron star observations. Andreas Ipp gave a brief introduction to his work on exploring the early stages of heavy ion collisions and training L-CNNs for lattice gauge theories. The last speaker was Akira Harada, who presented his current work on the application of machine learning to the simulation of supernovae. During the discussion, members actively brainstormed potential projects and discussed methodologies, emphasizing the importance of interdisciplinary collaboration. The meeting concluded with Tetsuo Hatsuda's optimistic closing remarks about the group's potential to innovate at the intersection of deep learning and physics. There will be more activities from the DEEP-IN Working Group in the near future. Reported by Lingxiao Wang
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2024-04-18
Paper of the WeekWeek 3, April 2024
Title: Black holes, multiple propagation speeds and energy extraction Author: Vitor Cardoso, Shinji Mukohyama, Naritaka Oshita, Kazufumi Takahashi arXiv: http://arxiv.org/abs/2404.05790v1 Title: Linear stability of vector Horndeski black holes Author: Che-Yu Chen, Antonio De Felice, Shinji Tsujikawa arXiv: http://arxiv.org/abs/2404.09377v1 Title: Towards a spatial cat state of a massive pendulum Author: Satoshi Iso, Jinyang Li, Nobuyuki Matsumoto, Katsuta Sakai arXiv: http://arxiv.org/abs/2404.08435v1 Title: Upper Limit of Sound Speed in Nuclear Matter: A Harmonious Interplay of Transport Calculation and Perturbative QCD Constraint Author: Shao-Peng Tang, Yong-Jia Huang, Ming-Zhe Han, Yi-Zhong Fan arXiv: http://arxiv.org/abs/2404.09563v1 Title: Search for synchrotron emission from secondary electrons of proton-proton interaction in Galactic PeVatron candidate HESS J1641$-$463 Author: Naomi Tsuji, Takaaki Tanaka, Samar Safi-Harb, Felix Aharonian, Sabrina Casanova, Roland Kothes, Emmanuel Moulin, Hiroyuki Uchida, Yasunobu Uchiyama arXiv: http://arxiv.org/abs/2404.11012v1 Title: Observational features of reflection asymmetric black holes Author: Che-Yu Chen, Hung-Yi Pu arXiv: http://arxiv.org/abs/2404.07055v1 Title: Involutive Khovanov homology and equivariant knots Author: Taketo Sano arXiv: http://arxiv.org/abs/2404.08568v2 Title: Non-archimedean SYZ fibrations via tropical contractions Author: Yuto Yamamoto arXiv: http://arxiv.org/abs/2404.04972v1 Title: Directional Invariants of Doubly Periodic Tangles Author: Ioannis Diamantis, Sofia Lambropoulou, Sonia Mahmoudi arXiv: http://arxiv.org/abs/2404.05092v1 Title: Deciphering Radio Emissions from Accretion Disk Winds in Radio-Quiet Active Galactic Nuclei Author: Tomoya Yamada, Nobuyuki Sakai, Yoshiyuki Inoue, Tomonari Michiyama arXiv: http://arxiv.org/abs/2404.04632v1 Title: Genomic view of heavy-ion induced deletions associated with distribution of essential genes in Arabidopsis thaliana Author: Kotaro Ishii, Yusuke Kazama, Tomonari Hirano, Jeffrey A Fawcett, Muneo Sato, Masami Yokota Hirai, Fujiko Sakai, Yuki Shirakawa, Sumie Ohbu, Tomoko Abe Journal Reference: Front. Plant Sci. 15:1352564. (2024) doi: https://doi.org/10.3389/fpls.2024.1352564
Upcoming Visitors
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Visiting
Rumi Hasegawa
Ph.D. Student, Niigata UniversityTerm: April 25 (Thu) - 27 (Sat), 2024Visiting Place: RIKEN Wako Campus -
Visiting
Soichiro Shimamori
Ph.D. Student, Osaka UniversityTerm: April 25 (Thu) - 27 (Sat), 2024Visiting Place: RIKEN Wako Campus