Fig. 4: Boson Sampling data.
From: Reconfigurable continuously-coupled 3D photonic circuit for Boson Sampling experiments
Validation of the 3-photon (blue points in (a) and 4-photon (blue points in (b) Boson Sampling experiments against the uniform sampler hypothesis (green point in a, b). c, d Validation against the distinguishable photons sampler of 3- and 4-photon events. The test is applied using the same reconstructed sub-matrix in (a) and (b). The distinguishable samples (red points) were collected by adjusting the relative time delay between the input photons. e Histograms of simulated 3-photon slopes for counter W (normalized to the slopes of distinguishable particles data) in the case of validation against the uniform sampler using a random extracted U transformation, i.e. U matrices that do not match the actual operation implemented in the circuit. The obtained slopes of the 10 different 3-photon BS experiments are highlighted by the arrows (and by the corresponding stars). The experimental points were validated with the reconstructed sub-matrix retrieved from the two-photon reconstruction. All the experimental slopes values are in the positive range and far from the histograms average, thus showing the correct validation of the performed experiment. In (f), we performed the same analysis for the validation against the distinguishable photons hypothesis.
