一维自旋链的密度矩阵重整化群算法，以及严格对角化对照-DMRG of 1D spin chain and ED program

关于重整化群方法的实现，主要是用python语言实现的在product state下的情况中的仿真实现(about Numerical methods of density matrix renormalization group and variational matrix product state.)

实现重整化群物理计算的小程序，c++编写(The small program of renormalization group realizes the numerical calculation method of renormalization group)