Seminar
An introduction to modular functions, conformal field theories, and moonshine phenomena
July 2 at 16:00 - 18:10, 2021
Mr. Mizuki Oikawa (Junior Research Associate, iTHEMS)
Moonshine phenomena are certain mysterious connections between modular functions and finite groups. The first example is the celebrated monstrous moonshine, which connects the J-invariant and the Mons...more
Venue: via Zoom
Event Official Language: English
Precise WIMP Dark Matter Abundance and Standard Model Thermodynamics
June 24 at 16:30 - 17:30, 2021
Dr. Satoshi Shirai (Project Assistant Professor, Kavli IPMU, The University of Tokyo)
*Detailed information about the seminar refer to the email.
Venue: via Zoom
Event Official Language: English
Introduction to the replica method
June 23 at 13:30 - 15:40, 2021
Prof. Yoshiyuki Kabashima (Professor, Graduate School of Science, The University of Tokyo)
The replica method is a mathematical technique for evaluating the "quenched" average of logarithm (or a real number power) of the partition function with respect to predetermined random variables that...more
Venue: via Zoom
Event Official Language: English
Stable eigenvalues of compact anti-de Sitter 3-manifolds
June 18 at 16:00 - 18:10, 2021
Dr. Kazuki Kannaka (Special Postdoctoral Researcher, iTHEMS)
Geometric objects that have been investigated in detail so far, such as closed Riemann surfaces, are sometimes locally homogeneous. Loosely speaking, their infinitesimal behavior is the same at each p...more
Venue: via Zoom
Event Official Language: English
The origin and dispersal of buckwheat
June 10 at 10:00 - 11:00, 2021
Dr. Jeffrey Fawcett (Senior Research Scientist, iTHEMS)
Buckwheat, which soba noodles is made from, originated from a wild species that is distributed in southwest China, around Yunnan, Sichuan, and Tibet. We are trying to understand when, where, and how i...more
Venue: via Zoom
Event Official Language: English
An overview of genome-wide epistasis and co-selection analysis
June 3 at 10:00 - 11:00, 2021
Dr. Yingying Xu (Special Postdoctoral Researcher, iTHEMS)
This talk is a summary of research that have done by me and my team during 2016~2019. I was a postdoc researcher in Aalto university/Helsinki university in Finland. In the team, a worldwide active col...more
Venue: via Zoom
Event Official Language: English
A Mathematical Model for Stem Cell Competition to Maintain a Cell Pool Injured by Radiation Exposure
May 27 at 10:00 - 11:00, 2021
Dr. Kouki Uchinomiya (Central Research Institute of Electric Power Industry)
Cancer risk of low-dose-rate ionizing radiation exposure is one of the most important issues in radiation protection. Tissue stem cells have been considered one of the targets of radiation-induced car...more
Venue: via Zoom
Event Official Language: English
Theory of Anomalous Floquet Higher-Order Topology
May 26 at 22:00 - 23:15, 2021
Dr. Rui-Xing Zhang (University of Maryland, College Park, USA)
Periodically-driven or Floquet systems can realize anomalous topological phenomena that do not exist in any equilibrium states of matter, whose classification and characterization require new theoreti...more
Venue: via Zoom
Event Official Language: English
Loewner's theorem for maps on operator domains / The structure of maps on the space of all quantum pure states that preserve a fixed quantum angle
May 24 at 16:00 - 18:10, 2021
Dr. Michiya Mori (Special Postdoctoral Researcher, iTHEMS)
This talk is divided into two independent topics. In the first part of my talk we consider the order structure of hermitian matrices. Given two matrix domains (open connected sets of n-by-n hermitia...more
Venue: via Zoom
Event Official Language: English
Organ-to-organ two-way coupling contributes to the stabilization of circadian clock in Arabidopsis.
May 20 at 10:00 - 11:00, 2021
Dr. Kyohei Uemoto (Kyoto University / NARA Institute of Science and Technology)
Circadian clocks increase plant fitness by anticipating periodic environmental changes using unstable temporal information perceived in each tissue/organ. However, little is known about how such local...more
Venue: via Zoom
Event Official Language: English
Journal Club: Intrinsically Disordered Region (IDR)
May 19 at 13:00 - 14:00, 2021
Dr. Kyosuke Adachi (Special Postdoctoral Researcher, iTHEMS / Special Postdoctoral Researcher, Nonequilibrium Physics of Living Matter RIKEN Hakubi Research Team, RIKEN Center for Biosystems Dynamics Research)
A class of protein domain, which is called intrinsically disordered region (IDR), is known to take no rigid three dimensional structure. Recent studies have shown that IDRs can show biological functio...more
Venue: via Zoom
Event Official Language: English
Geometry of canonical metrics on Kähler manifolds
May 14 at 16:00 - 18:10, 2021
Dr. Eiji Inoue (Special Postdoctoral Researcher, iTHEMS)
The aim of this talk is to report recent trends in Kähler geometry. Kähler geometry consists of two aspects: the one is algebraic geometry and the other is metric geometry.The first one hour is an int...more
Venue: via Zoom
Event Official Language: English
Modeling Membrane Morphological Change during Autophagosome Formation
May 14 at 10:00 - 11:00, 2021
Prof. Yuji Sakai (Visiting Scientist (Academia), iTHEMS / Assistant Professor, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo)
Membrane-bound organelles compartmentalize eukaryotic cells and adopt various characteristic shapes such as disk-shaped, tubules, spherical vesicles, and their intermediate structures. Organellar morp...more
Venue: via Zoom
Event Official Language: English
Aperiodic and amorphous topological phases
May 12 at 17:00 - 18:15, 2021
Prof. Christopher Bourne (Visiting Scientist (Academia), iTHEMS / Assistant Professor, Advanced Institute for Materials Research (AIMR), Tohoku University)
Key features of topological insulators and superconductors such as stable edge modes have been found in an increasingly broad class of materials and systems. In this talk, I will introduce a mathemati...more
Venue: via Zoom
Event Official Language: English
Emulation for lensing and clustering observables of the cosmological large-scale structure
May 12 at 10:00 - 11:00, 2021
Dr. Takahiro Nishimichi (Yukawa Institute for Theoretical Physics, Kyoto University)
Recent developments in observational technologies open exciting opportunities to map out the detailed structure of the universe. Remarkably, the unique combination of imaging and spectroscopic galaxy ...more
Venue: via Zoom
Event Official Language: English
Kullback-Leibler divergence and stochastic dynamics
May 6 at 10:00 - 11:00, 2021
Dr. Ryosuke Iritani (Research Scientist, iTHEMS)
*Detailed information about the seminar refer to the email.
Event Official Language: English
Thermodynamic Uncertainty Relation Connects Physics, Information Science, and Biology
April 28 at 13:30 - 16:00, 2021
Prof. Yoshihiko Hasegawa (Associate Professor, Department of Information and Communication Engineering, The University of Tokyo)
Higher precision demands more resources. Although this fact is widely accepted, it has only recently been theoretically proved. The thermodynamic uncertainty relation serves as a theoretical basis for...more
Venue: via Zoom
Event Official Language: English
Alternative tsunami observing and forecasting systems
April 22 at 16:00 - 18:10, 2021
Dr. Iyan Mulia (Research Scientist, Prediction Science Laboratory, RIKEN CPR)
Dedicated tsunami observing systems are mostly expensive and are often not sustainable. Therefore, alternative approaches should be implemented to overcome the issues. We introduced innovative ways to...more
Venue: via Zoom
Event Official Language: English
The rheotaxis mechanism of swimming ciliates
April 22 at 10:00 - 11:00, 2021
Dr. Yukinori Nishigami (Research Institute for Electronic Science, Hokkaido University)
The swimming unicellular organisms, which live in freshwater, need to resist currents in the environment. Without this ability, their habitat changes with the flow, and they cannot survive in nature f...more
Venue: via Zoom
Event Official Language: English
Unconventional Spin Transport in Quantum Materials
April 21 at 17:00 - 18:15, 2021
Dr. Se Kwon Kim (KAIST, Republic of Korea)
Recent advancements in spintronic techniques originally developed for spin-based devices now enable us to study fundamental spin physics of various quantum materials with unprecedented spin-current co...more
Venue: via Zoom
Event Official Language: English