vol. 117 | iTHES

Vol. 117, March 7th, 2016


  • Upcoming Events
  • Event report
  • Visitors

Person of the week

Happy Birthday Gordon!


Celebrating 80th Birthday Anniversary of Gordon Baym

From the Office

The office of iTHES assistant, Ms.Chikako Oota is situated at the second floor of the main research building, room # 246. The extension number is 3261. She will be at the office from 10 a.m. to 16 p.m.

Upcoming Events

12th International Conference on Low Energy Antiproton Physics (LEAP2016)
Date: March 6-11, 2016
Place: Kanazawa Japan

The intent of LEAP 2016 is to actively stimulate the overlap and dialogue between various research forefronts in the diversified field of antiproton physics and related field involving meson and baryon with strangeness.
iTHES is a cosponsor of this meeting.
Feel free to join !

"LIGO Gravitational Wave Detection Seminar"
Date: March 7 (Mon) 2016 16:00-
Place: BSI Ikenohata Building, 3rd floor, large conference room
Speaker: Prof. Kipp Cannon (RESCEU, The Univ. of Tokyo; LIGO member)
Contact: Kazuo Maxima (maxima@phys.s.u-tokyo.ac.jp)

iTHES Symposium
Baymfest in Tokyo:
"Exploring Extreme Forms of Matter - A symposium in honor of Professor Gordon Baym -"
Date: March 14 (Mon) 2016. 10:00am-
Place: Faculty of Science 4th-bldg 1320, Department of Physics, The University of Tokyo

This is a joint symposium hosted by The University of Tokyo and RIKEN on nuclear physics, condensed matter physics and astrophysics in hornor of Prof. Gordon Baym's 80th birth year. We welcome participation of all scientists who are interested in these fields and related interdisciplinary research. We hope to have fruitful discussions on the current status and future perspectives in these fields at the symposium.

3rd mini-symposium on Computations, Brains and Machine
Date: March 17, 2016, 1:30 pm -
Place: the seminar room, 1F, at BSI Central Building

Brain does amazingly efficient computation over big and complex information, while modern neuroscience itself often requires such computations for analyzing the data, to address mysteries of brain. To gain the insights for uncovering the superb neuro-computational principles and intelligence, the series of this mini-symposium is intended to discuss better computations and greater mathematical principles in a wider perspective, not only in theoretical neuroscience but also in machine learning and statistical-information sciences. This time, four eminent speakers will introduce us to cutting-edge works to face such challenges in their own disciplines. Who knows that these perspectives might be integral for future neuroscience?

13:30-13:35 Opening
13:35-14:20 Dr. Yoshimasa Tsuruoka (The University of Tokyo):
Recent Advances in Natural Language Processing and Game AI
14:20-15:05 Dr. Mahito Sugiyama (Osaka University):
Statistical Analysis on Order Structures
15:30-16:15 Dr. Makoto Yokoo (Kyushu University):
Market Design: Designing Social System by Game Theory
16:15-17:00 Dr. Tetsuya Ogata (Waseda University):
Deep Neural Models for Multimodal Integration in Robot System
17:00-17:45  Informal discussion (at Nakahara Lab/N201)

15th iTHES Colloquium
Date: March 17th (Thu.) 13:00-
"Modeling the transmission dynamics of Middle East respiratory syndrome (MERS) in the Repubic of Korea"
Prof. Hiroshi Nishiura (University of Tokyo)
Place: Nishina Hall (E02)

Abstract: A multi-hospital outbreak of Middle East respiratory syndrome (MERS) occurred in the Republic of Korea from May-July 2016. Committed to maintaining regional security, the epidemiological modeling team at the University of Tokyo, including Hiroshi Nishiura, responded to the epidemic through research activities, elucidating the natural history and transmission dynamics. Multitudes of research question were answered in two month period with eight independent submissions and these research outcomes were provided shared in real-time. This talk briefly introduces each modeling study and its contribution to public health, thereby helping the author to overview future research tasks to be achieved anticipating similar events of emerging infectious diseases in Japan.

16th iTHES Colloquium
Date: April 19 (Tues.) 15:00~
"Exploring the world of microswimmers: a theoretical approach"
Dr. Kenta Ishimoto (RIMS, Kyoto Univ.)
Place: Okouchi Hall

Under the microscope, we can observe a large variety of swimming microbles rich in morphological and ecological diversity. The swimming is a vital concern for such primitive organisms to survive, and they appear to adapt to the environmental constraints of hydrodynamics at low Reynolds number. This can be highlighted by the scallop theorem, a
consequence of the symmetry in the equations of the system, where the inertia is negligible as in Aristotelean physics. In this talk, after a brief introduction to the hydrodynamics in the microworld, I will show how the theory works in the biological microswimmers such as bacteria, planktons and spermatozoa. Further examples will be provided in our recent studies on cell boundary accumulation phenomena and sperm guidance in mammalian fertilisation.

One-day Kickoff meeting of Extended-iTHES
April 28 (Thurs.)
place: Suzuki Umetaro Hall

We are going to have a kickoff meeting of "Extended-iTHES" in which
(i) pure and applied mathematics team will be newly launched,
(ii) a new domestic/international platform initiative for "Brain Reflux" will be started.
All iTHES members are invited to attend.

Event report

A very intriguing yet atypical seminar, almost to the extent of unlikeliness for other conventional discipline-wise institutions, was held on March 3rd. Dr. Amari from BSI invited Prof. Jean-Francois Cardoso from University Paris 7 to talk at the special session of BSI forum jointly organized by iTHES. The essence of the talk was about data processing, so it may appear it has some relevance to brain science. However,what unusual about the seminar was the data that Prof. Cardoso was trying to analyze; they were observed by an artificial satellite and concern the very early universe.

Prof. Cardoso started with a very clear explanation of Big Bang theory and its consequences colloquially. Then he explained the Planck satellite which collected the data he analyzes. The data contain a lot of background noises naturally, and the issue is to how to clean them up.

He told us that twelve teams were competing for the task at one point.  His approach was based on the fact (or the premise, to be conservative) that CMB's signal is very Gaussian and taking advantage of it.

Later part of the seminar involved rather details of technicality; yet it attracted more than 30 audiences from Brain research to Cosmology. The seminar lasted just two hours and received many pointed questions from the audiences.

The one-day workshop "Storage Rings and Tests of Fundamental Symmetries" was held in room no. 535 of the Main Research Building, RIKEN on March 2nd.  About 20 people have attended this workshop.  There were 7 talks, with 6 invited speakers, with the main guest Professor Yannis K. Semertzidis from IBS/KAIST, Korea.

The main subject of this workshop is the study of fundamental symmetries using the storage ring.  Professor Semertzidis did an excellent review of the experimental study of the electric dipole moment of the proton and the deuteron, which is a good probe of the CP violation beyond standard model of particle physics.  In the afternoon session, studies on the precision experiments of the antihydrogene, the muon anomalous magnetic moment and its hyperfine structure were presented.

The search for fundamental physics is one of the most important 
subject of particle physics. The search for new theories in particle physics is now working at high energy scale, at TeV scale or beyond, and the most popular approach to unveil those new physics is the accelerator based experiment, with the Large hadron collider of CERN at the head of the list. The precision tests of fundamental symmetries are also a very competitive approach. Each topic presented in this workshop has the potential to obtain the Nobel prize, if new phenomena are discovered.


Prof. Gordon Baym (Univ. Illinois at Urbana-Champaign)
cold atom physics, condensed matter physics, dense matter and neutron stars
Feb. 24 - Mar. 23, 2016
room 429 (4th floor, main building)