You are here: Home Events NITheP Seminar by Prof. Izumi Ojima on "Who has seen a free photon?"

NITheP Seminar by Prof. Izumi Ojima on "Who has seen a free photon?"

Kyoto University, Research Institute for Mathematical Sciences, Japan.
When Mar 16, 2012
from 02:15 PM to 03:15 PM
Where NITheP Seminar Room, Westville campus
Add event to calendar vCal
iCal

Abstract:

While the notion of the position of photons is indispensable in the quantum optical situations, it has been known in mathematical physics that any position operator cannot be defined for a massless free particle with anon-zero finite spin. This dilemma is resolved by introducing the "effective mass" of a photon due to the interaction with matter. The validity of this interpretation is confirmed in reference to the picture of "polariton", a basic notion in optical and solid physics.

« October 2017 »
October
SuMoTuWeThFrSa
1234567
891011121314
15161718192021
22232425262728
293031