Joint spectrum mapping of polarization entanglement in parametric down-conversion
Hou Shun Poh, Chune Yang Lum, I. Marcikic, Antı́a Lamas-Linares, Christian Kurtsiefer · 2007
Spectral mapping of the polarization correlations of photon pairs from down-conversion in femtosecond regime reveals an imbalance between contributions from the two possible decay paths as the cause of low entanglement quality.