We quantitatively investigate the non-classicality and non-locality of a whole new class of mixed disparate quantum and semiquantum photon sources at the quantum-classical boundary. The latter include photon added thermal and photon added coherent sources, experimentally investigated recently by Zavatta et al. [Phys. Rev. Lett. 103, 140406 (2009)]. The key quantity in our investigations is the visibility of the corresponding photon-photon correlation function. We present explicit results on the violations of the Cauchy-Schwarz inequality - which is a measure of nonclassicality - as well as of Bell-type inequalities.
@article{arxiv.1005.4176,
title = {Quantum interference and non-locality of independent photons from disparate sources},
author = {R. Wiegner and J. von Zanthier and G. S. Agarwal},
journal= {arXiv preprint arXiv:1005.4176},
year = {2015}
}