Phase transition in the transverse Ising model using the extended coupled-cluster method
凝聚态物理
2009-10-31 v1
摘要
The phase transition present in the linear-chain and square-lattice cases of the transverse Ising model is examined. The extended coupled cluster method (ECCM) can describe both sides of the phase transition with a unified approach. The correlation length and the excitation energy are determined. We demonstrate the ability of the ECCM to use both the weak- and the strong-coupling starting state in a unified approach for the study of critical behavior.
引用
@article{arxiv.cond-mat/9911365,
title = {Phase transition in the transverse Ising model using the extended coupled-cluster method},
author = {J. Rosenfeld and N. E. Ligterink},
journal= {arXiv preprint arXiv:cond-mat/9911365},
year = {2009}
}
备注
10 pages, 7 eps-figures