RIKEN Interdisciplinary Theoretical and Mathematical Sciences Program
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
The Mathematical Society of Japan: Cross-discipline and cross-industry research exchange meeting 2020
October 31 at 10:00 - 17:00, 2020
「数学・数理科学専攻若手研究者のための異分野・異業種研究交流会（研究交流会）」は、 数学・数理科学専攻の博士課程学生をはじめとする若手研究者と産業界を含む異分野の方々 との「双方向の交流の場」として2014年から開催しております。若手研究者の皆様に、諸科学や産業への応用展開のような数学の思わぬ力を発見してもらう ことや、産業界を含む様々な分野で活躍できる場の存在を認識してもらうことが主たる目的 で...more
Venue: via Online
Event Official Language: Japanese
Mathematical aspects of quasi-Monte Carlo integration
November 5 at 16:00 - 18:10, 2020
Dr. Kosuke Suzuki (Assistant Professor, Graduate School of Advanced Science and Engineering, Hiroshima University)
In this talk, I will introduce mathematical aspects of quasi-Monte Carlo (QMC) integration. We aim to approximate the integral of a function on the d-dimensional hypercube [0,1]^d. A useful approach i...more
Venue: via Zoom
Event Official Language: English
The Unreasonable Effectiveness of Quantum Theory in Mathematics
November 26 at 10:00 - 11:30, 2020
Prof. Dijkgraaf Robbert (Director, Institute for Advanced Study in Princeton, USA)
The physical concepts of quantum theory, in particular of quantum gravity and string theory, have proven to be extremely powerful in addressing deep problems in pure mathematics, from knot invariants ...more
Venue: via Zoom
Event Official Language: English
Opportunities
Seeking a Postdoctoral Researcher (W20086) *theoretical physics
Deadline: Open until filled
iTHEMS is seeking a postdoctoral researcher in theoretical physics including condensed matter physics, particle physics and nuclear physics. In particular, the successful applicant is expected to help develop an adiabatic quantum computer (AQC) simulator using time-dependent density matrix renormalization group (DMRG). This project is part of a greater effort in the Berkeley area towards exploring the efficacy of adiabatic quantum computing supported jointly by RIKEN, UC Berkeley, Lawrence Berkeley Lab, and the U.S. Department of Energy. In addition to developing the AQC simulator, the candidate will have the opportunity to pursue top-level research in collaboration with an interdisciplinary group of researchers across fields such as mathematics, physics, chemistry, life sciences, engineering computational sciences, information sciences, and social sciences at iTHEMS, and physics, mathematics and computational sciences at Berkeley.
Seeking a Research Scientist or Senior Research Scientist (W20095) *extreme universe
Deadline: Open until filled
iTHEMS is seeking theorist(s) working on extreme universe including high-energy astrophysics, supernovae, neutron stars, black holes, and early universe. Successful applicant(s) are expected not only to pursue top-level researches in astrophysics but also to lead interdisciplinary collaborations among different fields such as mathematics, physics, chemistry, life sciences, engineering, computational sciences, information sciences, and social sciences, under the concept of iTHEMS. Also, successful applicant(s) are expected to participate in the international collaboration on astrophysics between iTHEMS and the NSF Physics Frontier Center in UC Berkeley established on Sept. 2020.
Seeking a Postdoctoral Researcher (W20122) *ecology and evolutionary biology
Deadline: Open until filled
iTHEMS is seeking postdoctoral researcher(s) in the field of ecology and evolutionary biology (including population genetics, epidemiology, quantitative biology, and bioinformatics). Successful applicant(s) are expected to not only pursue high quality research in their own field but also promote interdisciplinary collaborations among different fields such as mathematics, physics, chemistry, life sciences, engineering, computational sciences, information sciences, and social sciences, under the concept of iTHEMS. This time, we encourage early-career applicants who have a high research potential in pursuing collaboration with Dr. Ryosuke Iritani (ecology and evolution) as well as various iTHEMS-researchers across disciplines. Though your research backgrounds in population-/community-dynamics, stochastic analysis, evolutionary game theory, and stochastic simulations are highly beneficial, we value your research proposal (concreteness, logicality, and realizability of your future plans) more than your past achievements.
Seeking a Postdoctoral Researcher or Research Scientist (W20001) *condensed matter theory
Deadline: October 31, 2020
iTHEMS is seeking postdoctoral researcher(s)/research scientist(s) in theoretical condensed matter physics. Successful applicant(s) are expected not only to pursue top-level researches in their own field but also to lead interdisciplinary collaborations among different fields such as mathematics, physics, chemistry, life sciences, engineering, computational sciences, information sciences, and social sciences, under the concept of iTHEMS. This time, we encourage junior applicants who have high research potential in theoretical studies of topological states of matter, Majorana modes, topological quantum computing, mathematical physics, non-Hermitian systems, and related fields.
Seeking a Postdoctoral Researcher or Research Scientist (W20002) *machine learning
Deadline: October 31, 2020
iTHEMS is seeking postdoctoral researcher(s)/research scientist(s) in the field of machine learning. Successful applicant(s) are expected not only to pursue top-level researches in their own field but also to lead interdisciplinary collaborations among different fields such as mathematics, physics, chemistry, life sciences, engineering, computational sciences, information sciences, and social sciences, under the concept of iTHEMS. This time, we encourage junior applicants who have high research potential in theories and applications of machine learning.
Seeking a Postdoctoral Researcher or Research Scientist (W20014) *particle physics and quantum gravity
Deadline: October 31, 2020
iTHEMS is seeking postdoctoral researcher(s)/research scientist(s) in the field of particle physics and quantum gravity. Successful applicant(s) are expected not only to pursue top-level researches in their own field but also to lead interdisciplinary collaborations among different fields such as mathematics, physics, chemistry, life sciences, engineering, computational sciences, information sciences, and social sciences, under the concept of iTHEMS. In particular, we welcome applications from young researchers who are interested in exploring the properties of spacetime and matter under extreme conditions such as black holes and the early universe, as well as the theory of quantum gravity in a broader sense.
Seeking a Postdoctoral Researcher (W20090) *mathematical sciences
Deadline: December 14, 2020
iTHEMS is seeking postdoctoral researcher(s) in the field of mathematical sciences (including pure mathematics and applied mathematics). Successful applicant(s) are expected not only to pursue top-level researches in their own field but also to promote interdisciplinary collaborations among different fields such as mathematics, physics, chemistry, life sciences, engineering, computational sciences, information sciences, and social sciences, under the concept of iTHEMS. This time, we encourage junior applicants who have high research potential in the field of mathematical sciences, who can actively communicate with researchers in iTHEMS. iTHEMS has a senior research scientist, Dr. Hiroyasu Miyazaki (arithmetic/algebraic geometry), and researchers from various field of mathematical sciences, including analysis, partial differential equations, topology, gauge theory, mathematical physics, etc.
Latest News
2020-10-23
iTHEMS Theoretical Physics Seminar by Dr. Tokuro Fukui on October 22, 2020
On October 22, the iTHEMS-phys seminar entitled "Realistic shell model and chiral three-body force” given by Dr. Tokuro Fukui (YITP, Kyoto U.) was held. He and his collaborators proposed the way to...more
2020-10-22
Biology Seminar by Dr. Christos Merkatas on October 21, 2020
On October 21st, Dr. Christos Merkatas from Aalto University in Finland gave a talk at the iTHEMS Biology Seminar. His talk was entitled, “Bayesian Nonparametric Estimation of Random Dynamical Systems...more
2020-10-22
Coffee Meeting on October 9, 2020
At the weekly coffee meeting on October 9th (Fri.), Dr. Jeremy Riousset (Florida Institute of Technology) gave a nice description on the properties of "Planetary lightning". After his talk, Dr. Shigeh...more