Vol.2, January 1st, 1970


  • Launching iTHES meeting
  • Upcoming Event
  • Person of the Week
  • Visitors

Person of the week

Pulak Kumar Ghosh



From the Office

The office of iTHES assistant, Ms.Chikako Oota is situated at the first floor of the main research building, room # 159. The extension number is 3185. She will be at the office from 10 a.m. to 16 p.m. except on Wednesday.

Launching iTHES meeting

To get to know each other in iTHES and to enhance mutual interactions, we organize "iTHES Meeting" every two months.
The first meeting will be held in Oct.15 (3pm-) where newly arrived iTHES researchers, Dr. N. Iizuka and Dr. P. Ghosh, will introduce their recent interdisciplinary works. (See the program below).
We urge all the iTHES members to attend this iTHES meeting to be held every two months.

iTHES Colloquium Committee
T. Tada (ithes-phys team, Comittee Chair)
T. Iitaka (ithes-cond team)
G. Kurosawa (ithes-bio team)
T. Hatsuda (ithes group director)

Upcoming Event

Person of the Week


Pulak Kumar Ghosh

I am Pulak Kumar Ghosh, currently working as an iTHES Researcher at RIKEN. Prior to this, I worked as a JSPS postdoctoral fellow at quantum condensed matter research group, under supervision of Dr. Franco Nori. I did my doctoral research at the Indian Association for the Cultivation of Science, one of the best and oldest research institutes in India (where Professor C. V. Raman discovered the celebrated Raman effect for light scattering in 1928). My research interests include statistical mechanics, stochastic processes, soft condensed matter, quantum transport theories, modeling charge and energy conversion processes in natural and artificial photosynthetic structures.
Natural energy-converting devices (like photosystem, mitochondria etc) achieved their excellent performance through evolution over billions of years. Working principles of these devices are the focus of a concerted effort, both conceptual and technological. A deeper understanding of underlying physics in photosynthesis is required for implementing its mechanisms in solar cells, which is a promising source of renewable energy for our long-term future. Recent, two dimensional electronic spectroscopic studies revealed that coherences between electronic states play an important role in exciton transfer dynamics. This result raises a lot of questions and controversies about efficient energy transduction mechanisms in photosynthesis. Open issues include the quantitative impacts of quantum coherence in energy transfer, the role of the surrounding protein medium in long-lasting quantum coherence, how to implement efficient coherent electron transfer mechanism in artificial photosynthetic structures. I am interested to explore these issues using theoretical methods based on the dissipative quantum dynamics.
Beside the research related to energy transfer in natural and bio-inspired devices, I am interested to study noise-induced non-equilibrium phenomena: stochastic resonance and ratchet motion in the context of biological problems, like signal transduction mechanism in sensory nerves systems and transport properties of motor proteins.



Prof. Toichiro Kinoshita
(Cornell Univ.)
High precision test of quantum electrodynamics and the Standard Model

More about Prof. Kinoshita
Aug. 20th - Nov. 12th, 2013
room 431 (3rd floor, main building)


Dr. Kouji Kashiwa
Quantum Field Theory for Dense Matter
Sep. 23 - Oct. 11, 2013
room 431 (4th floor, main building)