Seminar

Seminar

iTHEMS Math 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

Seminar

DMWG Seminar

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

Seminar

Information Theory SG Seminar

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

Seminar

iTHEMS Math Seminar

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

Seminar

iTHEMS Biology Seminar

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

Seminar

iTHEMS Biology Seminar

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

Seminar

iTHEMS Biology Seminar

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

Seminar

Quantum Matter Seminar

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

Seminar

iTHEMS Math Seminar

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

Seminar

iTHEMS Biology Seminar

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

Seminar

Information Theory SG Seminar

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

Seminar

iTHEMS Math Seminar

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

Seminar

iTHEMS Biology Seminar

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

Seminar

Quantum Matter Seminar

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

Seminar

DMWG Seminar

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

Seminar

iTHEMS Biology Seminar

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

Seminar

Information Theory SG Seminar

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

Seminar

iTHEMS Math Seminar

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

Seminar

iTHEMS Biology Seminar

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

Seminar

Quantum Matter Seminar

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