The Physics of Exciton-Polariton Condensates

Konstantinos Lagoudakis

164 pages, parution le 27/11/2013

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Résumé

In 2006 researchers created the first polariton Bose-Einstein condensate at 19K in the solid state. Being inherently open quantum systems, polariton condensates open a window into the unpredictable world of physics beyond the "fifth state of matter": the limited lifetime of polaritons renders polariton condensates out-of-equilibrium and provides a fertile test-bed for non-equilibrium physics. This book presents an experimental investigation into exciting features arising from this non-equilibrium behavior. Through careful experimentation, the author demonstrates the ability of polaritons to synchronize and create a single energy delocalized condensate. Under certain disorder and excitation conditions the complete opposite case of coexisting spatially overlapping condensates may be observed. The author provides the first demonstration of quantized vortices in polariton condensates and the first observation of fractional vortices with full phase and amplitude characterization. Finally, this book investigates the dynamics of polariton populations trapped in neighboring potential traps - and shows that coherent population oscillations are observed - in direct analogy to the AC Josephson effect.

This book puts significant weight on both the details of the experimental techniques and the theoretical tools used pick apart the experimental findings making it an invaluable aide for condensed matter researchers interested in exciton-polaritons condensates.

Sommaire

Introduction
Condensation and exciton-polaritons
Experimental techniques and sample
Synchronization of polariton condensates
Condensation in multiple modes
Conventional vorticity
Unconventional vorticity
Dynamics of spontaneous vortices
Dynamics of polariton condensates in double wells
Conclusions and outlook

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	PAPIER
Éditeur(s)	EPFL
Auteur(s)	Konstantinos Lagoudakis
Parution	27/11/2013
Nb. de pages	164
Format	16,5 x 25
Couverture	Relié
Poids	485g
Intérieur	Quadri
EAN13	9782940222759
ISBN13	978-2-940222-75-9