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research article
Long-range order in the Bose-Einstein condensation of polaritons
2007
We adopt a kinetic theory of polariton nonequilibrium Bose-Einstein condensation to describe the formation of off-diagonal long-range order. The theory accounts properly for the dominant role of quantum fluctuations in the condensate. In realistic situations with optical excitation at high energy, it predicts a significant depletion of the condensate caused by long-wavelength fluctuations. As a consequence, the one-body density matrix in space displays a partially suppressed long-range order and a pronounced dependence on the finite size of the system.
Type
research article
Web of Science ID
WOS:000245329600093
Authors
Publication date
2007
Published in
Volume
75
Issue
11
Article Number
115326
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
September 22, 2009
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