Disordered quantum walks in two-dimensional lattices plink

Zhang Rong^a),^b), Xu Yun-Qiu^b), Xue Peng^a),^c)†

Fig. 2. The variance of 2D QW with point disorder e i #cod#x003D5; #cod#x003D5;=#cod#x003C0; at origin 0,0 for different initial coin states. The black line corresponds to #cod#x003D5; #cod#x0003D;0 without phase disorder for the initial separated state |00#cod#x027E9;; the red dotted line corresponds to #cod#x003D5;#cod#x0003D;#cod#x003C0; for the initial separated state |00#cod#x027E9;; and the green dot-dashed line corresponds to #cod#x003D5;#cod#x0003D;#cod#x003C0; for the initial entangled state .