RIKEN Interdisciplinary Theoretical and Mathematical Sciences Program

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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.

About iTHEMS

Upcoming Events



iTHEMS Math Seminar

From Yang-Mills theory to enumerative geometry on Calabi-Yau 4-folds

August 6 at 16:00 - 18:10, 2021

Dr. Yalong Cao (Research Scientist, iTHEMS)

Yang-Mills theory was studied from mathematical perspectives in the 1970s by Atiyah and his collaborators (notably Drinfeld, Hitchin, Singer). Subsequent breakthroughs were made on dimensions 3 and 4 ...more

Venue: via Zoom

Event Official Language: English


iTHEMS Theoretical Physics Seminar

Application of AdS/CFT to non-equilibrium phenomena in external electric fields

August 16 at 13:00 - 15:00, 2021

Dr. Shunichiro Kinoshita (Collaborative Researcher, Faculty of Science and Engineering, Chuo University)

The AdS/CFT correspondence is a useful tool for studying strongly-coupled gauge theories. According to this correspondence, the D3/D7 brane system in string theory is one of the simplest toy model du...more

Venue: via Zoom

Event Official Language: English


RIKEN-Vancouver Joint Workshop on Quantum Computing

August 24 - 25, 2021

The main aim of this workshop is that the quantum people in RIKEN (iTHEMS and RQC) and Vancouver (Quantum BC) get together online to discuss scientific activities and explore future collaborations. ...more

Venue: via Zoom

Event Official Language: English


iTHEMS Colloquium

Finding Gravitational Waves from the Early Universe

September 27 at 16:00 - 17:30, 2021

Dr. Eiichiro Komatsu (Director, Max Planck Institute for Astrophysics, Germany)

The Cosmic Microwave Background (CMB) gives a photographic image of the Universe when it was still an “infant”. We have been using it to test our ideas about the origin of the Universe. The CMB resear...more

Venue: via Zoom

Event Official Language: English

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Seeking a Postdoctoral Researcher or Research Scientist (W21003)

Deadline: Open until filled

Postdoctoral Researcher or Research Scientist, a few positions. In particular, the applicant(s) are expected to spend at least 50% of their time carrying out original research developing numerical models to describe biological systems, such as the spread of virus in a cell culture, in collaboration with Dr. Catherine Beauchemin.

Seeking a Female Research Scientist or a Female Senior Research Scientist (W21071)

Deadline: Open until filled

Female Research Scientist or Female Senior Research Scientist, a few positions. Seeking a female researcher or a female senior researcher to conduct theoretical research in the fields of natural sciences, mathematical sciences, or humanities and social sciences.

More opportunities

Latest News


Paper of the Week

Week 2, August 2021

Title: LMC N132D: A mature supernova remnant with a power-law gamma-ray spectrum extending beyond 8 TeV Author: H. E. S. S. Collaboration arXiv: http://arxiv.org/abs/2108.02015v1 Title: Relativis...more


Seminar Report

Information Theory SG Seminar by Dr. Qibin Zhao on July 28, 2021

In the Information Theory SG seminar on July 28th, Dr. Qibin Zhao gave us an exciting talk about the basics and applications of tensor networks (TNs) in machine learning. His talk was divided into thr...more


Seminar Report

iTHEMS Biology Seminar by Prof. Mayumi Seto on July 29, 2021

On July 29th, Mayumi Seto (Nara Women's University) gave a talk on the application of thermodynamics to microbial modeling. She first introduced some important concepts of adenosine tri-phosphate (ATP...more

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