vol. 113 | iTHES

Vol. 113, February 8th, 2016


  • Upcoming Events
  • Event report
  • Paper of the week

Paper of the week

Kazuo Fujikawa


“Uncertainty Principle, Shannon? Nyquist Sampling and Beyond”

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

The 8th iTHES Academic-Industrial Innovation Lecture
Date: March 1st (Tue.)
Place: Nishina Hall, Wako, RIKEN
Company: JSOL

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.

Event report

The iTHES Mame-maki (beans-throwing) party was held on the Setsu-Bun Day (Feb 3).
More than 20 iTHES researchers fought in two teams (Aka-Oni’s and Ao-Oni’s) against each other, by throwing beans with shouting “Oni-wa-soto!”.
They also congratulated new PhD holders, again by flinging beans at them.

Person of the Week

At last week’s regular iTHES coffee meeting held on February 5th, Prof. Kazuo Fujikawa gave a short talk and introduced a very interesting research conducted by himself. The research is published as a paper entitled “Uncertainty Principle, Shannon Nyquist Sampling and Beyond” in Journal of the Physical Society of Japan 84, 064801 (2015)(http://dx.doi.org/10.7566/JPSJ.84.064801 ). Prof. Fujikawa explained an intriguing connection between quantum mechanics and signal processing. He clarified the connection between the well-known Nyquist Shannon sampling theorem and the precise recovery of the information below uncertainty limit by Donoho and Stark. He also mentioned a pioneering contribution by a Japanese researcher, Isao Someya, in passing. It was very stimulating to learn that the concept such as uncertainty principle acquired through the research of the very basic aspects of quantum mechanics can be useful as a fundamental criterion to distinguish the ordinary signal processing from compressed sensing.