Fig. 4: Measured probability distribution of two-photon events for the standard BSM scheme.
From: Boosted Bell-state measurements for photonic quantum computation
Only the \(\vert {\Psi }^{\pm }\rangle\) states show unambiguous click patterns, while the \(\vert {\Phi }^{\pm }\rangle\) states perfectly overlap. Only states that correspond to at least one of the Bell states are depicted. Here, an average success probability of pc,total = (49.05 ± 0.02)% is achieved. The error on the individual probabilities is smaller than 0.001.
