Determining spatial structures of ion crystals by simulated annealing method

Wu Wen-Bo^{1, 2}, Wu Chun-Wang^{1, 2}, Li Jian^{1, 2}, Ou Bao-Quan^{1, 2}, Xie Yi^{1, 2}, Wu Wei^{1, 2, †}, Chen Ping-Xing^{1, 2, ‡}

(color online) The distribution of the ion spacings by calculating 120 positions of the ions and 119 separations of every two adjacent ions. The average of the separations m, which is very close to its assuming value, and the separations’ standard deviation .