Stopping time of a one-dimensional bounded quantum walk

Luo Hao¹, Zhan Xiang², Zhang Peng¹, Xue Peng^{2, †,}

(a) Time T_max for the maximum point in the probability distribution P^(X_d)(T_s); (b) the peak value P_max of P^(X_d)(T_s) at time T_max.