Figure 4
From: Dynamical Quantum Phase Transition and Quasi Particle Excitation
(a) The presence and the absence of DPTs following a small size sudden quenching of θ in the rate function of return probability. The solid line corresponds to the IP where there are periodic occurrences of DPTs while DPTs get rounded of away from the IP (dotted line). (b) The amplitudes of oscillation in Eq. 12, for a small size quench across the critical point, plotted versus k at the IP Jo = Je = 1. Inset: The amplitudes of oscillation away from the isotropic point Jo = 1, Je = 2.
