Fig. 2: Results for the fermionic chain.
From: Efficient quantum information probes of nonequilibrium quantum criticality
a Sketch of the known phase diagram, showcasing a ballistic, diffusive, and insulating regimes. The symbols give the location of the peaks in e for different system sizes. b Comparison of the real space occupations between the ballistic phase at V = 1.0 (continuous) and the diffusive at V = 4.0 (dashed). Figures b–f are obtained for η = 0.1. Figures b–e use the color code given in b. c G versus V for different system sizes. Inset shows the current’s dependence with L for the different regimes, with the dashed line being a guide for the eyes delineating the diffusive behavior. d Comparison of affinity (continuous) and fidelity (dashed) susceptibilities per degree of freedom obtained by exact diagonalization for δV = 0.01. e \({\chi }_{{{{\mathcal{A}}}}}^{VV}/L\) for δV = 0.2 obtained via MPS. f Critical coupling Vc, measured as maximum of \({\chi }_{{{{\mathcal{A}}}}}^{VV}\) vs L for different perturbation sizes.
