Photon localization and Dicke superradiance : a crossover to small world
Speaker:
Eric Akkermans, Technion, Haifa, Israel and Applied Physics, Yale University
Date & Time:
April 29, 2008 - 1:30pm
Location:
Serin 385 (Physics) | Photon localization and Dicke superradiance : a crossover to small world Physics and Astronomy |
|---|
| Eric Akkermans, Technion, Haifa, Israel and Physics and Applied Physics, Yale University 1:30 PM, Serin 385 (Physics) We study photon localization in a gas of cold atoms, using a Dicke Hamiltonian that accounts for photon mediated atomic dipolar interactions. The photon escape rates are obtained from a new class of random matrices. A scaling behavior is observed for photons escape rates as a function of disorder and system size. Photon localization is described using statistical properties of random networks which display a "small world" cross-over. Those results are compared to the Anderson photon localization transition. |