Quantum Corner-Transfer Matrix DMRG
Strongly Correlated Electrons
2009-11-13 v1 Statistical Mechanics
Abstract
We propose a new method for the calculation of thermodynamic properties of one-dimensional quantum systems by combining the TMRG approach with the corner transfer-matrix method. The corner transfer-matrix DMRG method brings reasonable advantage over TMRG for classical systems. We have modified the concept for the calculation of thermal properties of one-dimensional quantum systems. The novel QCTMRG algorithm is implemented and used to study two simple test cases, the classical Ising chain and the isotropic Heisenberg model. In a discussion, the advantages and challenges are illuminated.
Cite
@article{arxiv.0804.1874,
title = {Quantum Corner-Transfer Matrix DMRG},
author = {Erik Bartel and Andreas Schadschneider},
journal= {arXiv preprint arXiv:0804.1874},
year = {2009}
}
Comments
17 pages, 15 figures, to appear in Int.J.Mod.Phys. C