Title :
Study of excitonic superfluidity in Cu/sub 2/O
Author :
Mysyrowicz, A. ; Benson, E. ; Fortin, E.
Author_Institution :
Ecole Polytech., Palaiseau, France
Abstract :
Summary form only given. The recent observation of Bose-Einstein condensation (BEG) in ultracold atoms has stirred a considerable renewal of interest for this effect. A gas of excitons or biexcitons in semiconductors provides another system where BEC has been observed. A particularly interesting aspect of an excitonic Bose-Einstein condensate concerns its propagation in the form of a superfluid. Excitonic superfluidity corresponds to a drag-free, wavelike flow of electronic excitation energy through a crystal. Experimental evidence for superfluidity of excitons in Cu/sub 2/O is presented.
Keywords :
Bose-Einstein condensation; biexcitons; brightness; copper compounds; excitons; optical solitons; superfluidity; Bose-Einstein condensation; Cu/sub 2/O; biexcitons; drag-free wavelike flow; electronic excitation energy; excitonic Bose-Einstein condensate; excitonic superfluidity; excitons; semiconductors; superfluid; ultracold atoms; Atomic beams; Chemical lasers; Conductors; Cooling; Dark states; Excitons; Interference; Optical polarization; Physics; Pulsed laser deposition;
Conference_Titel :
Quantum Electronics Conference, 1998. IQEC 98. Technical Digest. Summaries of papers presented at the International
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
1-55752-541-2
DOI :
10.1109/IQEC.1998.680410
