title: Quantum theory of spin dynamics of exciton-polaritons in microcavities.
abstract: We present the quantum theory of momentum and spin relaxation of exciton-polaritons in microcavities. We show that giant longitudinal-transverse splitting of the polaritons mixes their spin states, which results in beats between right- and left-circularly polarized photoluminescence of microcavities, as was recently experimentally observed [Phys. Rev. Lett. 89, 077402 (2002)]]. This effect is strongly sensitive to the bosonic stimulation of polariton scattering.
authors.affiliation: A F Ioffe Physico-Technical Institute, 26, Politechnicheskaya, 194021 St Petersburg, Russia.
authors.forename: K V
authors.initials: KV
authors.lastname: Kavokin
authors.forename: I A
authors.initials: IA
authors.lastname: Shelykh
authors.forename: A V
authors.initials: AV
authors.lastname: Kavokin
authors.forename: G
authors.initials: G
authors.lastname: Malpuech
authors.forename: P
authors.initials: P
authors.lastname: Bigenwald