Density-matrix spectra for integrable models
Statistical Mechanics
2017-09-27 v2
Abstract
The spectra which occur in numerical density-matrix renormalization group (DMRG) calculations for quantum chains can be obtained analytically for integrable models via corner transfer matrices. This is shown in detail for the transverse Ising chain and the uniaxial XXZ Heisenberg model and explains in particular their exponential character in these cases.
Cite
@article{arxiv.cond-mat/9810174,
title = {Density-matrix spectra for integrable models},
author = {I. Peschel and M. Kaulke and Ö. Legeza},
journal= {arXiv preprint arXiv:cond-mat/9810174},
year = {2017}
}
Comments
14 pages, 7 figures, to appear in Ann. Physik