Fig. 6

(a) \(\overline{\langle J^{2} \rangle }_w/N^{\zeta /\nu }\) (where \(\zeta\) and \(\nu\) are the critical exponents) as a function of disorder strength w at \(k=1, p=\pi /2\) and initial state \({|{2.25,1.1}\rangle }\) for different system sizes. These curves cross each other at \(w=w_c \approx 2.11\). (b) The collapse of the data with \(\zeta =0.57\) and \(\nu =0.52\) consistent with the scaling proposed in Eq. (12). (c) var\(({J^{2}})\) with respect to disorder strength w for \(k=1\) that shows a peak around 2.0.