Mladen Pavicic1,2,3 and Johann Summhammer2
1Institut für Theoretische Physik, TU Berlin, Hardenbergstraße 36, D-10623 Berlin 12, Germany
2Atominstitute of the Austrian Universities, Schüttelstraße 115, A-1020 Wien, Austria; firstname.lastname@example.org
3Department of Mathematics, University of Zagreb, GF, Kaciceva 26, POB-217, HR-10001 Zagreb, Croatia; email@example.com; http://m3k.grad.hr/pavicic
Abstract. 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.
PACS numbers: 03.65.Bz, 42.50.Wm
Keywords: four photon interferometry, quantum optics, quantum nonlocality, quantum teleportation, Bell experiment.