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Kantaro Ohmori
6 days ago
Research Scientist or Postdoctoral Researcher in Theoretical Physics at RIKEN iTHEMS RIKEN in Japan
Degree Level
Postdoc
Field of study
Mathematics
Funding
One-year fixed-term employed position renewable based on evaluation, up to 5 years for Research Scientist or 3 years for Postdoctoral Researcher; approximate monthly salary at hire is 550,000 JPY or more for Research Scientist and 480,000 JPY or more for Postdoctoral Researcher, with discretionary work, commuting, and housing allowances and social insurance.
Deadline
Dec 18, 2026
Country
Japan
University
RIKEN
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About this position
RIKEN iTHEMS is seeking a few Research Scientists or Postdoctoral Researchers to join the Category Theoretical Physics RIKEN ECL Research Unit in the Division of Fundamental Mathematical Science. The unit is led by Kantaro Ohmori and is based at the RIKEN Center for Interdisciplinary Theoretical and Mathematical Sciences in Wako, Saitama.
The research environment is centered on connecting quantum field theory with the microscopic models that describe quantum matter. The unit’s theme is to build a framework that starts from categorical and algebraic descriptions of field theory and uses them to understand and design quantum systems with desired macroscopic behavior. The work draws on mathematical structures such as category theory, higher algebra, and algebraic topology, and it also connects to tensor networks and lattice models.
Successful candidates will contribute to one or more of the unit’s main research directions, including generalized and non-invertible symmetries, conformal and topological field theories, constructive and algebraic approaches to quantum many-body systems, and other mathematically rich structures relevant to quantum field theory. The post is also explicitly interdisciplinary: researchers are expected to exchange ideas and collaborate with members of iTHEMS across fields.
The position can be appointed as either a Research Scientist or a Postdoctoral Researcher depending on the candidate’s profile and aptitude. The post is embedded in a broad theoretical and mathematical sciences hub, with an emphasis on independent research and active participation in collaborative and interdisciplinary activities.
Funding details
One-year fixed-term employed position renewable based on evaluation, up to 5 years for Research Scientist or 3 years for Postdoctoral Researcher; approximate monthly salary at hire is 550,000 JPY or more for Research Scientist and 480,000 JPY or more for Postdoctoral Researcher, with discretionary work, commuting, and housing allowances and social insurance.
What's required
The candidate should possess a doctoral degree by the starting date, or be expected to obtain one by then. Applications require a cover letter, CV with the job position number 26-1713 noted, publication list including preprints, a research statement, a research plan connected to the unit’s work, an interdisciplinary statement, two letters of recommendation, and an agreement on handling personal information.
How to apply
Upload all application documents through the AcademicJobsOnline application page. Include the job position number 26-1713 in the notes section of your CV. Applications received by December 18, 2026 will be reviewed first, and the position remains open until filled.
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Professors
ECL Unit Leader at RIKEN
Japan
Research Interests
Algebraic Topology
Category Theory
Mathematics
Conformal Field Theory
Many-body Systems
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