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Colloquium: Dipolariton Bose Condensates

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Allan MacDonald, University of Texas
20 February 2014 from 4:00 PM to 5:00 PM
117 Osmond Laboratory
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(814) 863-0016
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A variety of different flavors of Bose condensation have been realized in recent years, 

including condensates of alkali atoms with Bose statistics, condensates of equilibrium 

electron-hole pairs in the quantum Hall regime, and non-equilibrium condensates of 

coherently coupled electron-hole pairs and vertical cavity photons, i.e. polariton condensates.

Polariton condensates are normally formed in systems with a small number of 

quantum wells inside an optical cavity, and the electron-hole pairs are formed from conduction and 

valence band states in the same well.  I will discuss the physics of systems in which 

electrons can tunnel from well to well, forming electron-hole dipoles, commenting in particular 

on the possibility of resonant electro-optic coupling.