Kavokin, K.V., Shelykh, I.A., Kavokin, A.V., Malpuech, G. and Bigenwald, P.
Quantum theory of spin dynamics of exciton-polaritons in microcavities
Physical Review Letters, 92, (1), . (doi:10.1103/PhysRevLett.92.017401).
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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 [M.?D. Martin et al., Phys. Rev. Lett. 89, 077402 (2002)]. This effect is strongly sensitive to the bosonic stimulation of polariton scattering.
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