Exciton-polariton Bose-Einstein condensation: advances and issues

Year: 2010

Authors: Richard M., Kasprzak J., Baas A., Kundermann S., Lagoudakis K.G., Wouters M., Carusotto I., Andre R., Deveaud-Pledran B., Dang L.S.

Autors Affiliation: Univ Grenoble 1, CNRS, CEA, Inst Neel,Equipe Mixte, F-38042 Grenoble, France; Cardiff Univ, Sch Phys & Astron, Cardiff CF24 3AA, S Glam, Wales; Ecole Polytech Fed Lausanne, IPEQ, CH-1015 Lausanne, Switzerland; Ecole Polytech Fed Lausanne, ITP, CH-1015 Lausanne, Switzerland; INFM CNR BEC, I-38050 Povo, Trento, Italy; Univ Trento, Dipartimento Fis, I-38050 Povo, Trento, Italy

Abstract: In this review, we present a comprehensive set of experimental results on microcavity-polariton Bose-Einstein Condensation (BEC), obtained within a close collaboration between Institut Neel, Grenoble, France and EPFL, Lausanne, Switzerland. First, we recall the main observations, i.e.. massive Occupation Of the ground state and build-up of long range order, which led LIS to Conclude that polariton BEC indeed Occurs. Then, the highly disordered environment in which the condensation takes place is considered: we show how interactions are a necessary ingredient for polariton BEC. Finally We discuss quantised vortices observed for the first time in polariton condensates. Their unusual features are shown to be inherited from the disordered environment and the driven-dissipative character of the polariton BEC.

Journal/Review: INTERNATIONAL JOURNAL OF NANOTECHNOLOGY

Volume: 7 (4-8)      Pages from: 668  to: 685

KeyWords: BOSE-EINSTEIN CONDENSATION; polaritons; semiconductor microcavity
DOI: 10.1504/IJNT.2010.031738

Citations: 16
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