Towards a loophole free Bell test
Siddarth Koduru Josh, Chen Ming Chia, Qixiang Leong, Antı́a Lamas-Linares, Sae Woo Nam, Christian Kurtsiefer · 2013
Using a highly efficient (74%) PPKTP source of narrowband polarization entangled photon pairs (as measured with TES detectors) together with a fast polarization modulator (11 ns) we should be capable of a loophole free Bell test