The theoretical framework behind a recent experiment by Nogueira et. al. [Phys. Rev. Lett. 86}, 4009 (2001)] of spatial antibunching in a two-photon state generated by collinear type II parametric down-conversion and a birefringent double-slit is presented. The fourth-order quantum correlation function is evaluated and shown to violate the classical Schwarz-type inequality, ensuring that the field does not have a classical analog. We expect these results to be useful in the rapidly growing fields of quantum imaging and quantum information.
@article{arxiv.quant-ph/0206038,
title = {Spatial antibunching of photons with parametric down-conversion},
author = {W. A. T. Nogueira and S. P. Walborn and S. Padua and C. H. Monken},
journal= {arXiv preprint arXiv:quant-ph/0206038},
year = {2009}
}
Comments
5 pages, 3 figures. Minor changes made, accepted for publication in PRA