摘要

This is an introductory course to the Lanczos Method and Density Matrix Renormalization Group Algorithms (DMRG), two amona the leading numerical techniques applied in studies of low-dimensional quantum models. The idea of studying the models on clusters of a finite size in order to extract their physical properties is briefly discussed. The important role played by the model symmetries is also examined. Special emphasis is given to the DMRG.

  • 出版日期2003-3