使用并行算法(简称Z分法)Fortran编程计算获取海森堡模型位型[N,k](N为海森堡链总格点数,k为格点中自旋向上的电子数)最小本征值的最短时间.使用置换群方法产生模型的能量矩阵,将能量矩阵对角化所得到的本征值构成数据群,采用Z(Z=1,2…)分法Fortran编程计算获得群中最小数据的最短(或最长)时间.结果表明:同一位型[N,k],使用2分法获取模型位型[N,k]最小本征值的时间最长,而不等分或满等分(此时Z=1或位型[N,k]的矩阵维数)时的时间最短且二者相等;对于不同位型[N,k],当N(k)同,k(N)增大且Z相同时,获取模型最小本征值的最短时间增加.
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