Fig. 3: Prepared entanglement and indistinguishability.
From: Robust entanglement preparation against noise by controlling spatial indistinguishability
a Entanglement \({C}_{{\rm{LR}}}({{\mathcal{W}}}^{\pm })\) as a function of noise probability p for different degrees of spatial indistinguishability \({{\mathcal{I}}}_{{\rm{LR}}}\) and system parameters: blue solid line is for target state \(\left|{1}_{-}\right\rangle\), \({{\mathcal{I}}}_{{\rm{LR}}}=1\) (\(l=l^{\prime}\)), fermions (with θ = 0) or bosons (with θ = π); red dashed line is for target state \(\left|{1}_{+}\right\rangle\), \({{\mathcal{I}}}_{{\rm{LR}}}=1\) (\(l=l^{\prime}\)), fermions (with θ = π) or bosons (with θ = 0); black dot-dashed line is for distinguishable qubits (\({{\mathcal{I}}}_{{\rm{LR}}}=0\), l = 1 and \(l^{\prime} =0\) or vice versa). b Contour plot of entanglement \({C}_{{\rm{LR}}}({{\mathcal{W}}}^{-})\) versus noise probability p and spatial indistinguishability \({{\mathcal{I}}}_{{\rm{LR}}}\) for target state \(\left|{1}_{-}\right\rangle\), fermions (with θ = 0) or bosons (with θ = π), fixing \(l=r^{\prime}\).
