Generation of polarization entanglement from spatially correlated photons in spontaneous parametric down-conversion
Ryōsuke Shimizu, Takashi Yamaguchi, Yasuyoshi Mitsumori, Hideo Kosaka, Keiichi Edamatsu · Physical Review A · 2008
We propose a scheme to generate polarization entanglement from spatially correlated photon pairs. We experimentally realized a scheme by means of a spatial correlation effect in a spontaneous parametric down-conversion and a modified Michelson interferometer. The scheme we propose in this paper can be interpreted as a conversion process from spatial correlation to polarization entanglement.