Twin polaritons in semiconductor microcavities
Résumé
The quantum correlations between the beams generated by polariton pair scattering in a semiconductor microcavity above theparametric oscillation threshold are computed analytically. The influence of various parameters like the cavity-excitondetuning, the intensity mismatch between the signal and idler beams and the amount of spurious noise is analyzed. We showthat very strong quantum correlations between the signal and idler polaritons can be achieved. The quantum effects on theoutgoing light fields are strongly reduced due to the large mismatch in the coupling of the signal and idler polaritons tothe external photons.
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