Polariton Condensates – David Snoke, Physics Departement, University of Pittsburg

David Snoke, Physics Departement, University of Pittsburg

Polaritons are short-lifetime, quasi-number conserved particles with very light effective mass (four orders of magnitude less than an electron) which exist inside specially designed nanostructured solids. During their existence, they act to a very good approximation as a weakly interacting Bose gas, and undergo Bose-Einstein condensation. In the past five years there has been an explosion of new experiments on polariton condensates, including Josephson junction oscillations between two condensates, imaging of pinned vortices, measurement of the onset time for coherence, soliton-like motion of a polariton superfluid over long distances, and measurement of the momentum distribution and spatial distribution in a harmonic trap. This talk will be partly review of recent work by others, and partly focus on our recent work in Pittsburgh on polaritons with long lifetime compared to their thermalization time.

Cette conférence s'adresse à tous, y compris les professeurs, les chercheurs et les étudiants des trois cycles.

Le café est servi à partir de 11h20.

 Cette conférence est présentée par le RQMP Versant Nord du Département de physique de l'Université de Montréal et le Département de génie physique de Polytechnique Montréal.