Nonclassical correlation of polarization-entangled photons in a biexciton-exciton cascade
Abstract
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 correlations 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 (Stevenson et al 2006 Nature 439 179). Our model can be extended to study polarization-entangled photon emission in coupled quantum dot systems.
Citation
Das, S., & Agarwal, G. S. (2008). Nonclassical correlation of polarization-entangled photons in a biexciton-exciton cascade. Journal of Physics B: Atomic, Molecular and Optical Physics, 41(22), Article 225502. https://doi.org/10.1088/0953-4075/41/22/225502