Condensation of Excitons
in a Trap

High, A. A.; Leonard, J. R.; Remeika, M.; Butov, L. V.; Hanson, M.; Gossard, A. C.

doi:10.1021/nl300983n.s001

nl300983n_si_001.pdf (363.43 kB)

Condensation of Excitons in a Trap

journal contribution

posted on 2012-05-09, 00:00 authored by A. A. High, J. R. Leonard, M. Remeika, L. V. Butov, M. Hanson, A. C. Gossard

Condensation is observed in a gas of indirect excitons confined in an electrostatic trap. Imaging and interferometric measurements detect that excitons condense at the trap bottom and exciton spontaneous coherence emerges with lowering temperature. Below a temperature of about 1 K, the direct signature of Bose–Einstein condensation, the extension of coherence over the entire cloud, is observed.