Fig. 5: Frequency-domain NOON-state interference. | Light: Science & Applications

Fig. 5: Frequency-domain NOON-state interference.

From: NOON-state interference in the frequency domain

Fig. 5

a The true coincidence counts versus the temporal delay (DL2) for the NOON-state interference (N = 2). The blue and red points indicate the true coincidence counts of the SNSPDs D1 & D2 and D3 & D4, respectively, which enables post-select two-photon events. The solid blue and dashed red lines are simulation results. b The true coincidence counts versus the temporal delay (DL2) for the single-photon interference. The blue and red points represent the true coincidence counts of the SNSPDs D1 & D5 and D3 & D5. The solid blue and dashed red lines are simulation results. The error bars are calculated assuming Poissonian statistics of the detection

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