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
Coarse-graining black holes out of equilibrium with boundary observables on time slice
April 1 (Mon) at 16:00 - 17:30, 2024
Daichi Takeda (Ph.D. Student, Theoretical Particle Physics Group, Kyoto University)
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Special Lecture
TadaFest 2024: Toward understanding of the Origin of Spacetime
April 2 (Tue) at 14:00 - 18:00, 2024
Tsukasa Tada (Coordinator, iTHEMS / Vice Chief Scientist, iTHEMS)
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Seminar
Quantum simulation of QCD matter: from hadronic scattering to gauge field qubit encoding
April 3 (Wed) at 10:00 - 11:00, 2024
Tianyin Li (Ph.D. Student, Institute of Quantum Matter, South China Normal University, China)
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Seminar
A socio-ecological and genomic approach to mixed-species formation of African forest guenons
April 4 (Thu) at 16:00 - 17:00, 2024
Haruka Kitayama (Ph.D. Student, Graduate School of Environmental Science, Hokkaido University)
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Seminar
Short-Lived Hawking Radiation Under Stringy Effects
April 11 (Thu) at 13:30 - 15:00, 2024
Wei-Hsiang Shao (Ph.D. Student, Department of Physics, National Taiwan University, Taiwan)
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Seminar
Quantum Fine-Grained Complexity
April 18 (Thu) at 10:30 - 12:00, 2024
Harry Buhrman (Chief Scientist for Algorithms and Innovation, Quantinuum, UK)
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Colloquium
The 25th MACS Colloquium
April 19 (Fri) at 14:45 - 18:30, 2024
Wataru Morita (Researcher, Department of Anthropology, National Museum of Nature and Science / Associate Professor, Department of Biological Sciences, Graduate School of Science, The University of Tokyo)
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Workshop
Recent Developments and Challenges in Topological Phases
June 3 (Mon) - 14 (Fri), 2024
Opportunities
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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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Call for applications for the position of Special Postdoctoral Researcher (SPDR) for FY 2025
Deadline: April 9, 2024
RIKEN is currently accepting applications for the FY 2025 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 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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2024-03-29
Research NewsRIKEN Research: How the genetic battle of the sexes plays out in species that can switch sex
A model developed by RIKEN researchers incorporates species that change sex during their life cycles for the first time1, promising new insights into genes affecting the reproductive success of males and females differently. Some genes that boost the reproductive success of females can be detrimental to that of males, and vice versa—a phenomenon dubbed ‘sexual antagonism’. Sometimes such genes can be silenced in individuals of the sex they are detrimental to. However, it may take a long time for these sexually antagonistic genes to be turned off, and so they may remain active in both sexes for generations. “Researchers have long been interested in how sexual antagonism may maintain genetic variation in populations, and whether variants favoring one sex are systematically preferred,” says Thomas Hitchcock of the RIKEN Interdisciplinary Theoretical and Mathematical Sciences. To read more, please visit the related link.
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2024-03-28
Paper of the WeekWeek 5, March 2024
Title: Exact block encoding of imaginary time evolution with universal quantum neural networks Author: Ermal Rrapaj, Evan Rule arXiv: http://arxiv.org/abs/2403.17273v1 Title: A neural network approach for two-body systems with spin and isospin degrees of freedom Author: Chuanxin Wang, Tomoya Naito, Jian Li, Haozhao Liang arXiv: http://arxiv.org/abs/2403.16819v1 Title: Greybody Factors Imprinted on Black Hole Ringdowns. II. Merging Binary Black Holes Author: Kazumasa Okabayashi, Naritaka Oshita arXiv: http://arxiv.org/abs/2403.17487v1 Title: Local operator quench induced by two-dimensional inhomogeneous and homogeneous CFT Hamiltonians Author: Weibo Mao, Masahiro Nozaki, Kotaro Tamaoka, Mao Tian Tan arXiv: http://arxiv.org/abs/2403.15851v1 Title: Unveiling clean two-dimensional discrete time quasicrystals on a digital quantum computer Author: Kazuya Shinjo, Kazuhiro Seki, Tomonori Shirakawa, Rong-Yang Sun, Seiji Yunoki arXiv: http://arxiv.org/abs/2403.16718v1 Title: Monopoles and transverse knots Author: Nobuo Iida, Masaki Taniguchi arXiv: http://arxiv.org/abs/2403.15763v1 Title: The Flavor Composition of Supernova Neutrinos Author: Antonio Capanema, Yago Porto, Maria Manuela Saez arXiv: http://arxiv.org/abs/2403.14762v1 Title: Probing Goldstino excitation through the tunneling transport in a Bose-Fermi mixture with explicitly broken supersymmetry Author: Tingyu Zhang, Yixin Guo, Hiroyuki Tajima, Haozhao Liang arXiv: http://arxiv.org/abs/2403.14524v1
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2024-03-27
AwardiTHEMS received the "RIKEN Diversity Promotion Award 2023"
On 8 March 2024, iTHEMS received the "RIKEN Diversity Promotion Award 2023". The award recognised our joint activities (lectures and visiting program) with Nara Women's University from 2020 as a progressive initiative to promote the active participation of women in the scientific field. Thanks to all those who made this activity exciting and entertaining!
Upcoming Visitors
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Wei-Hsiang Shao
Ph.D. Student, Department of Physics, National Taiwan University, TaiwanTerm: April 9 (Tue) - 12 (Fri), 2024Visiting Place: RIKEN Wako Campus