Nonclassical Correlation of Polarization Entangled Photons in a Biexciton-Exciton Cascade

Details Nonclassical Correlation of Polarization Entangled Photons in a Biexciton-Exciton Cascade Nonclassical Correlation of Polarization Entangled Photons in a Biexciton-Exciton Cascade

2008-08-19

arxiv.org/abs/0808.2639v2

J. Phys. B: At. Mol. Opt. Phys. 41 (2008) 225502

Physics

Quantum Physics

Scientific paper

10.1088/0953-4075/41/22/225502

We develop a theoretical model to study the Intensity-Intensity correlation of polarization entangled photons emitted in a biexciton-exciton cascade. We calculate the degree of correlation and show how polarization correlation are affected by the presence of dephasing and energy level splitting of the excitonic states. Our theoretical calculations are in agreement with the recent observation of polarization dependent Intensity-Intensity correlations from a single semiconductor quantum dot [R. M. Stevenson et. al., Nature 439, 179 (2006)] . Our model can be extended to study polarization entangled photon emission in coupled quantum dot systems.

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