Fig. 4: Simulation of two-copy collective measurement with noise.
From: Discriminating mixed qubit states with collective measurements
The error probability is shown as a function of the noise scaling term, with the default noise parameters, corresponding to a scaling of 1, specified in the Simulation of two-copy collective measurement with noise section. The two states being discriminated are characterised by v = 0.1, α = π/4 and q = 0.75. The shaded red and blue regions correspond to the limits of local operations and classical communication (LOCC) and collective measurements respectively. The black cross corresponds to the experimentally obtained error probability based on 200,000 shots, and the statistical error bars based on bootstrapping are smaller than the marker size. The horizontal positioning of the experimental data point is of no physical significance. The dashed black vertical line corresponds to a noise scaling of 0.6.
