Interferometry with Two Pairs of Spin Correlated Photons

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.

A teleportation protocol with independent sources. Works also with a Bell pair + a spontaneously emitted photon

References in corpus (1)

• Spin correlated interferometry for polarized and unpolarized photons on a beam splitter

Cited by in corpus (7)

• Spin-correlated interferometry with beam splitters: preselection of spin-correlated photons
• Retraction of "Near-Deterministic Discrimination of All Bell States with Linear Optics," Phys. Rev. Lett. 107, 080403 (2011) and Erratum Phys. Rev. Lett. 107, 219901 (2011)
• Bell violation for unknown continuous-variable states
• A method for reaching detection efficiencies necessary for optical loophole-free Bell experiments
• Quantum Computers, Discrete Space, and Entanglement
• Entanglement and Superdense Coding with Linear Optics
• Mixed basis quantum key distribution with linear optics