Precise estimation of the S = 2 Haldane gap by numerical diagonalization
Strongly Correlated Electrons
2018-09-12 v1 Statistical Mechanics
Abstract
The Haldane gap of the S=2 Heisenberg antiferromagnet in a one-dimensional linear chain is examined by a numerical-diagonalization method. A precise estimate for the magnitude of the gap is successfully obtained by a multistep convergence-acceleration procedure applied to finite-size diagonalization data under the twisted boundary condition.
Cite
@article{arxiv.1809.01393,
title = {Precise estimation of the S = 2 Haldane gap by numerical diagonalization},
author = {Hiroki Nakano and Toru Sakai},
journal= {arXiv preprint arXiv:1809.01393},
year = {2018}
}
Comments
6 pages, 1 Table, to be published in J. Phys. Soc. Jpn