vol. 98 | iTHES

Vol. 98, October 19th, 2015


  • Announcement
  • Upcoming Events
  • Event report
  • Person of the week

Person of the week

Shingo Gibo



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.


Occasions to honor Prof. Nambu's legacy in Osaka on Nov. 16th and 17th

As we have been announcing, iTHES will co-host a workshop dedicated to Prof. Nambu's legacy at Osaka University next November. It will be one of the activities that are intended to promote the trilateral cooperation among iTHES, Kavli IPMU and Core for Theoretical Science Research (CTSR), Osaka University (A very fine poster for the workshop is now ready as shown below).
The workshop will be preceded by another gathering that is also dedicated to Prof. Nambu. At this international symposium, several eminent scientists who were close to Prof. Nambu will give their tribute.
If you are interested in (and it is the day before our workshop), please register at
by October 25th.
We learned their tentative program, which we post here for your own convenience:
Nambu's Century
International Symposium on Yoichiro Nambu’s Physics
16th Nov. 2015, Osaka University Hall
9:30 Opening.
9:40-9:50 Prof. Yutaka Hosotani (Osaka Univ.)
9:50-10:20 Prof. Pierre Ramond (Univ. of Florida)
10:30-11:00 Prof. Makoto Kobayashi (KEK and JSPS)
11:00-11:30 Prof. Tohru Eguchi (Rikkyo Univ.)
13:30-14:00 Messages from
Prof. Lars Brink (Chalmers Univ. of Technology)
Prof. Gianni Jona-Lasinio (Univ. of Rome)
Prof. Toichiro Kinoshita (Cornell Univ.)
Prof. Steven Weinberg (Univ. of Texas Austin)
14:00-14:30 Prof. Motohiko Yoshimura (Okayama Univ.)
15:00-15:30 Prof. Burt Ovrut (Univ. of Pennsylvania)
15:30-16:00 Prof. Toshimitsu Yamazaki (Univ. of Tokyo)
16:30-17:00 Prof. Hirosi Ooguri (Caltech and Kavli IPMU)
17:00-17:30 Prof. Peter Freund (Univ. of Chicago, USA)

Upcoming Events

"Gamma-ray burst supernovae: From central engines to cosmological probes"
Dr. Zach Cano(Centre for Astrophysics and Cosmology, Science Institute, University of Iceland)
Date: Oct. 19 2015 (14:00-15:00)
Place: room 248 in the main research build.
Peculiar stripped-envelope core-collapse supernovae have been seen to occur at the same spatial locations as long-duration gamma-ray bursts (GRBs). These so-called gamma-ray burst supernovae (GRB-SNe) are bright and energetic, and their spectra indicate that material within in the supernova outflow propagates at tens of thousands of kilometers per second. The first GRB-SN was observed in 1998, with more than 30 having been observed to date. Despite this steady increase in sample size, many outstanding questions remain regarding the physical properties of their pre-explosion progenitor stars, as well as the physical processes that power the initial burst of gamma-rays and the accompanying supernova. In this talk I will present the latest paradigms that describe the main physical processes that occur during a GRB-SN event, and use these to infer properties of their pre-explosion progenitor star and constrain the nature of the central engine that powers the GRB and the supernova. I will also briefly present some tentative observations of suspected r-proccess transients associated with short-duration GRBs. I will finish the talk with a presentation of how to use GRB-SNe as cosmological probes to determine the Hubble constant in the local universe.

The 6th iTHES Academic-Industrial Innovation Lecture

"Recent advances in computaBonal drug discovery research"
Hironori Kokubo (Takeda Pharmaceutical Company)
Date: Oct. 22(Thurs.) 15:00-17:00
Place: Big conference room (2nd floor of the main cafeteria)

iTHES Colloquium in November 2015

Date: Nov.10 (Tues) 15:00-16:30
Place: big conference room (2nd floor of the main cafeteria)
Speaker: Kazuyuki Aihara (Univ. Tokyo)
Title: TBA

Osaka CTSR - Kavli IPMU - RIKEN iTHES International workshop
"Nambu and science frontier"

Date: 17th November (Tue), 2015
Venue: H701 lecture room, Dept. of Physics, Osaka university
Time: 9:30 - 17:30

Invited speakers
Kenji Fukushima (U. Tokyo)
Koji Hashimoto (Osaka U)
Simeon Hellerman (Kavli IPMU)
Noriyoshi Ishii (Osaka U)
Kota Masuda (RIKEN iTHES)
Yu Nakayama (Kavli IPMU / Caltech)
Toshifumi Noumi (Hong Kong U. of Science and Technology / RIKEN iTHES)
Kin-ya Oda (Osaka U)
Noriaki Ogawa (RIKEN iTHES)
Haruki Watanabe (MIT)
Tamiaki Yoneya (U. Tokyo, Open Univ. of Japan)

Koji Hashimoto, Kentaro Nagamine (Osaka CTSR)
Tetsuo Hatsuda, Tsukasa Tada, Masato Taki (RIKEN iTHES)
Hitoshi Murayama (Kavli IPMU)

Purpose of the Workshop:
In July 2015, we as the physics community were greatly saddened by the news that Prof. Yoichiro Nambu had passed away. He proposed many of the fundamental concepts that underlie our current understanding in theoretical sciences. On this occasion, we’d like to discuss the relevance of Nambu’s concepts and how they will be developed in many areas of science, and promote interdisciplinary collaborations among theoretical sciences. The joint workshop of Osaka CTSR- RIKEN iTHES - Kavli IPMU is a successive series following the symposium held at Kavli IPMU last year.
The topic of the workshop includes:
- Nambu-Goto action for strings, membranes and higher dim. objects
- Nambu-Goldstone theorem and its extensions
- Nambu-Jona-Lasinio model and its generalizations
- Nambu-Bethe-Salpeter equation and nuclear/hadron physics
- Nambu bracket for quantizing membrane and M-theory
- Higgs inflation
- QCD chiral phase transition
- Symmetry breaking in physical biology

Sponsored by
- Core for Theoretical Science Research (CTSR) , Osaka Univ.
- Interdisciplinary Theoretical Science (iTHES) Research Group, RIKEN
- Kavli IPMU, The Univ. of Tokyo

#16 Pioneer project seminar

"Precision Tests of Discrete symmetries at Low Energies"
Prof. Klaus Jungmann (University of Groningen)
Date: Nov. 24th (Tuesday) 2015 (10:00-11:00)
Place: Main research building, 5th floor, 535,537
Language: English

Fundamental Physics Using Atoms 2015
- Towards better understanding of our matter universe -

Nov. 30 (Mon.) -- Dec. 1 (Tue.), 2015
Oral sessions: RIKEN Wako, Okochi Hall (C32)
Poster sessions: Welfare and Conference Bldg. 2F (C61)

Recently much effort has been directed to investigation of the fundamental physics which exploits remarkable developments in atomic physics and/or quantum optics techniques. Examples include (A) test of the time reversal invariance by observing permanent electric dipole moments of atoms or molecules, (B) neutrino mass spectroscopy using atoms, (C) measurement of fine structure constant's time dependence with precession atomic clock etc. This conference aims to bring together recent research results, to discuss future prospects, and to expand research network, making this field more active and productive.

Event report

From Oct. 5 - Oct. 9, 2015, International Workshop "Mathematical Approach to Topological Phases in Spintronics" was held at Katahira campus in Tohoku university. They gathered an interdisciplinary group of leading researchers to explore insights in the deep connection between the physics of Topological Inslators and the Atiyah-Singer Index Theorem in mathematics. Franco Nori and Akinori Tanaka were invited as speakers from iTHES. This workshop intended to stimulate interdisciplinary discussions among experimental condensed matter physicists, theoretical physicists and mathematicians to understand recent developments on study of topological phases.
During the workshop, there are talks on recent experimental results, explanations of mathematical structures on bulk-edge correspondence and string theoretical realizations for topological insulator, and many discussions between physicists and mathematicians.

Person of the week

I’m a postdoctoral researcher at theoretical biology laboratory. Half a year ago I was a student at department of acoustic design, graduate school of design, Kyushu University. I learned various fields of sound, for example, acoustic engineering, audiology, musicology and so on. My previous study is mathematical model for acoustics. Now, I study mathematical model for circadian clocks. Both of sound and circadian clocks are nonlinear vibrations and can be approached by same mathematical method. I enjoy new study.