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ZhETF, Vol. 149, No. 3, p. 505 (March 2016)
(English translation - JETP, Vol. 122, No. 3, p. 434, March 2016 available online at )

Collective phenomena in cold indirect excitons
Butov L.V.

Received: August 11, 2015

DOI: 10.7868/S0044451016030056

PDF (2487.7K)

Due to their long lifetimes, indirect excitons can cool to below the temperature of quantum degeneracy. This gives an opportunity to experimentally study cold composite bosons. Both theoretically predicted phenomena and phenomena that have not been anticipated were observed in a cold gas of indirect excitons. In this contribution, we overview our studies of cold indirect excitons over the past decade, presenting spontaneous coherence and condensation of excitons, spatially modulated exciton state, long-range spin currents and spin textures, and exciton localization-delocalization transitions.

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