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Non-equilibrium Bosons: From Driven Condensates to Non-linear Optics (4036)

August 19, 2013 – August 23, 2013

Location: ICTP, Trieste, Italy

Photo Credits: Wikipedia.com, biogeochemistry.uml.edu, lpno.tnw.utwente.nl, lehigh.edu

 

Workshop Website:

Advanced Workshop on Non-equilibrium Bosons: From Driven Condensates to Non-Linear Optics

Flyer:

Advanced Workshop on Nonequilibrium Bosons Flyer

Organizer: Boris Altshuler, Columbia University
                      Mikhail Kiselev, ICTP
                      Atac Imamoglu, Eidgenössische Technische Hochschule Zürich
                      Vladimir Yudson, Russian Academy of Sciences
                      Alexei Kavokin, University of Southampton
                      S. Flach, Massey University

Recent progress in nano-engineering stimulated broadening studies of a new kind of cooperative phenomena in condensed matter systems: exciton-polariton Bose-Einstein Condensation (BEC) in microcavity semiconductor devices. As experimental implementation, these systems have some advantages as compared to ultra-cold gases: the effects of interest take place at temperatures of 0.1-1 K scale in contrast to nano-Kelvin scale for atomic BEC. The condensation kinetics (thermalization, vortex dynamics and the superfluid motion) can be accessed by optical methods. The bosons forming exciton-polariton condensates are not at thermodynamic equilibrium: because of the finite polariton life time, stationary states with macroscopic numbers of polaritons should be supported by an outside pumping. Being driven, the exciton-polariton condensates differ significantly from the conventional BEC-systems. A rich variety of phenomena in exciton-polariton systems includes polarization and interference effects, possible co-existence and interaction of different BEC phases of non-trivial topology, optical analogies of Josephson effect, effects of disorder, possible lasing and other non-linear optical phenomena in the specific microcavity configuration. A circle of problems to study is a synthesis of ones traditional for modern condensed matter physics and non-linear optics.

The goal of this Advanced Interdisciplinary Workshop is to bring together leading experimentalists and theorists working in the field of condensed matter physics, strong light-matter interaction and
non-linear physics to foster a “cross-fertilization” between these three communities.



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