We propose a new experiment employing two independent sources of spin correlated photon pairs. Two photons from different unpolarized sources each pass through a polarizer to a detector. Although their trajectories never mix or cross they exhibit 4th-order-interference-like correlations when the other two photons interfere on a beam splitter even when the latter two do not pass any polarizers at all. A wave packet calculation shows that the experiment permits a very discriminatory test of hidden variable theories.
@article{arxiv.1008.0078,
title = {Interferometry with Two Pairs of Spin Correlated Photons},
author = {Mladen Pavicic and Johann Summhammer},
journal= {arXiv preprint arXiv:1008.0078},
year = {2010}
}
Comments
A teleportation protocol with independent sources. Works also with a Bell pair + a spontaneously emitted photon