Experimental amplification of an entangled photon: what if the detection loophole is ignored?
Experimental amplification of an entangled photon: what if the detection loophole is ignored?
The experimental verification of quantum features, such as entanglement, at large scales is extremely challenging because of environment-induced decoherence. Indeed, measurement techniques for demonstrating the quantumness of multiparticle systems in the presence of losses are difficult to define, and if they are not sufficiently accurate they can provide wrong conclusions. …