We address parametric-downconversion seeded by multimode pseudo-thermal fields. We show that this process may be used to generate multimode pairwise correlated states with entanglement properties that can be tuned by controlling the seed intensities. Multimode pseudo-thermal fields seeded parametric-downconversion represents a novel source of correlated states, which allows one to explore the classical-quantum transition in pairwise correlations and to realize ghost imaging and ghost diffraction in regimes not yet explored by experiments.
@article{arxiv.0707.1985,
title = {Intensity correlations, entanglement properties and ghost imaging in multimode thermal-seeded parametric downconversion: Theory},
author = {Ivo P. Degiovanni and Maria Bondani and Emiliano Puddu and Alessandra Andreoni and Matteo G. A. Paris},
journal= {arXiv preprint arXiv:0707.1985},
year = {2009}
}