コーヒーミーティング過去ログ

2019-06-28

The neutron lifetime puzzle

リナルディ エンリコ (理化学研究所 仁科加速器科学研究センター (RNC) 量子ハドロン物理学研究室)

2019-06-21

On the impact of the chiral anomaly and chiral magnetic effect in the early Universe

Kohei Kamada (Center for Theoretical Physics of the Universe, Institute for Basic Science, Republic of Korea)

2019-05-24

Introduction to Black Hole Shadow of M87

水野 陽介 (Frankfurt University, Germany)

2019-05-17

What is quantum computing?

松浦 俊司 (Fundamental Researcher, Quantum Simulation Division, 1QBit, Canada)

2019-05-10

Ingredients of gamma-ray searches of dark matter in the Universe

廣島 渚 (数理創造プログラム 特別研究員)

2019-04-05

Power of Supermassive Black Hole Jets

井上 芳幸 (数理創造プログラム 上級研究員)

2019-02-15

GRB Correlations for GRB Cosmology and machine-learning analysis

マリア・ジョヴァンナ・ダイノッティ (理化学研究所 開拓研究本部 (CPR) 長瀧天体ビックバン研究室 客員研究員)

2019-01-18

Stochastic and deterministic controls in ageing process

Yukinobu Arata (Cellular Informatics Laboratory, RIKEN)

Animals are born after a miraculous embryogenesis, and after the birth, they age and eventually die. Basically, ageing is considered as a “wearing out” process of biological systems. However, such a strong self-organizing force during embryogenesis would draw us to think why animals do not live forever based on the force? To scientifically approach this thought, we can set several questions; 1) what kind of statistical laws the “wearing out” process is governed by, 2) how much deterministic controls are involved in the ageing process, 3) how much we can predict or artificially manipulate our lifespan? To address these questions, I have been preparing for a recording system for motions and physiological change of a tiny multicellular animal, C. elegans at video rate during their lifespan (~20 days). This recording system will generate unprecedentedly long time series data in Biology. In this meeting, I would like to discuss which existing mathematical frameworks developed in Physics and Mathematics can be applicable for these Biological issues, and would like to discuss the limit of the mathematical frameworks.

2019-01-11

Primordial black hole

井上 進 (数理創造プログラム 研究員)

2018-12-07

A physicist's adventure into the field of Ergonomics

カトゥリン・ボシゥメン (数理創造プログラム 客員主管研究員 / Professor, Department of Physics, Ryerson University, Canada)

In this talk, I will present the key results of the paper I co-authored on this topic: Modelling endurance and resumption times for repetitive one-hand pushing by Linda M. Rose, Catherine A. A. Beauchemin & W. Patrick Neumann, Ergonomics, Volume 61, Issue 7, Pages 891-901, 2018.

2018-11-09

Spin hydrodynamic generation: A new power generation at nanoscale

松尾 衛 (University of Chinese Academy of Sciences, China)

In this talk, I would like to introduce a new power generation using the electron as a nanoscale spinning gear. Electron, the most common elementary particle to us, is spinning perpetually since the beginning of the universe and the spinning motion is the origin of the magnetism. Recently we discovered interconversion mechanism between the electron’s spinning motion and electric power, and experimentally demonstrated it using liquid metal flow. We believe this will be a power source of nanorobots in the future.

2018-10-19

Positive flat functions cannot be positive forever (via differentiations)

児玉 大樹 (数理創造プログラム 客員研究員 / 東北大学 材料科学高等研究所 (AIMR) 助教)

We remark that there is no function on [0,1] which is flat at 0 such that the derivatives f^{(n)} of any order is positive on (0,1].

2018-10-05

A new theorem on rational triangles

アデ・イルマ・スリアジャヤ (数理創造プログラム 基礎科学特別研究員)

2018-08-24

On the unsolved mystery of biological clock

黒澤 元 (数理創造プログラム 研究員 / 理化学研究所 開拓研究本部 (CPR) 望月理論生物学研究室 研究員)

In 2017, the Nobel Prize in Physiology or Medicine was awarded to three scientists who studied the genetic mechanisms for our daily rhythm (so-called, biological clock). The rhythm is thought to govern the timing of sleep and, to possibly influence the efficacy of some important drugs. In this coffee meeting, I would roughly sketch out the unsolved mystery of biological clock which might be tackled by mathematical sciences.

2018-07-27

IceCube experiment

井上 進 (理化学研究所 開拓研究本部 (CPR) 長瀧天体ビッグバン研究室 研究員)

2018-07-20

Quantum mechanics

初田 哲男 (数理創造プログラム プログラムディレクター)

2018-07-13

Boolean networks and their biological, social, and mathematical problems

森 史 (Theoretical Biology Laboratory, RIKEN)

2018-06-22

A perspective on conformal field theory from Hyperbolic geometry

多田 司 (数理創造プログラム コーディネーター / 理化学研究所 仁科加速器科学研究センター (RNC) 量子ハドロン物理学研究室 副主任研究員)

2018-06-15

About some misuses of statistics in science

Björn Ahlgren (KTH Royal Institute of Technology, Sweden)

2018-06-01

Life and death of a neutron

初田 哲男 (数理創造プログラム プログラムディレクター)

1. What is neutron? 2. How it was born in the Universe. 3. How it survives in the Universe. 4. What is the fate of the neutron? 5. Open questions about the neutron.