Entanglement and parametric dynamics in quantum optics with interacting polaritons

Abstract

We report on a microscopic investigation of the polariton parametric emission in the presence of coherent and incoherent interaction processes by means of a full quantum description based on a nonequilibrium quantum Langevin approach for open systems applied to interacting‐electron complexes described within the dynamics controlled truncation scheme. It provides an easy recipe to calculate multi‐time correlation functions which are key‐quantities in quantum optics. In particular we report on calculations of polariton intensities (i.e. single time correlators) and spectra (i.e. two times correlators). We apply our scheme to a two‐pumps set‐up in microcavity recently proposed showing a quantitative analysis of the quantum correlation properties of the emitted photons. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)