Application of the Interface Approach in Quantum Ising Models
统计力学
2009-10-30 v1
摘要
We investigate phase transitions in the Ising model and the ANNNI model in transverse field using the interface approach. The exact result of the Ising chain in a transverse field is reproduced. We find that apart from the interfacial energy, there are two other response functions which show simple scaling behaviour. For the ANNNI model in a transverse field, the phase diagram can be fully studied in the region where a ferromagnetic to paramagnetic phase transition occurs. The other region can be studied partially; the boundary where the antiphase vanishes can be estimated.
引用
@article{arxiv.cond-mat/9702243,
title = {Application of the Interface Approach in Quantum Ising Models},
author = {Parongama Sen},
journal= {arXiv preprint arXiv:cond-mat/9702243},
year = {2009}
}
备注
11 pages, Revtex, 9 figures To be published in Physical Reveiw B , May 1997