arXiv:cond-mat/0011103 · Progress of Theoretical Physics

Two-Dimensional Tensor Product Variational Formulation

T. Nishino, Y. Hieida, K. Okunishi, Nobuya Maeshima, Y. Akutsu, A. Gendiar

Published Mar 1, 2001• 152 citations

Abstract

We propose a numerical self-consistent method for 3D classical lattice models, which optimizes the variational state written as a two-dimensional product of tensors. The variational partition function is calculated using the corner transfer matrix renormalization group (CTMRG), which is a variant of the density matrix renormalization group (DMRG). The numerical efficiency of the method is exemplified in its application to the 3D Ising model.

DOI: 10.1143/ptp.105.409

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