Figure 4
From: Experimental test of the no-go theorem for continuous ψ-epistemic models
(a) Experimental boundary on the ψ-epistemic models: the measured value of 
(open red squares; left axis) as a function of the dimension d. The solid black line is the 
estimated by Eq. (6). (b) The conditional correlation function 
(solid blue circles; right axis) of the heralded single photons. (c) The dependency of the measured value 
(open red squares) on the distance δ0. The solid line is the 
calculated by Eq. (6) with the substitution 
. The gray zones in (a,c) are the areas in which the quantum theory prediction could vary, taking into account the uncertainty on dark-count rate Cdk = 500 ± 100 c/s, extinction ratio Rext = 20 ± 2 dB and overall detection probability η = (0.07 ± 0.003)%(d − 1). Error bars represent the statistical errors.
