Fermionic random transverse-field Ising spin chain
无序系统与神经网络
2009-10-31 v2 介观与纳米尺度物理
摘要
The interplay of spin and charge fluctuations in the random transverse-field Ising spin chain on the fermionic space is investigated. The finite chemical potential, which controls the charge fluctuations, leads to the appearance of the quantum critical region in the phase diagram where the magnetic correlations are quenched by nonmagnetic sites. Regions of nonmonotonous temperature dependence of spin-spin correlation length appear at nonzero . The results on the one-fermion density of states of the model are discussed.
引用
@article{arxiv.cond-mat/9807248,
title = {Fermionic random transverse-field Ising spin chain},
author = {A. L. Chudnovskiy},
journal= {arXiv preprint arXiv:cond-mat/9807248},
year = {2009}
}
备注
10 pages, 2 figures included, citation corrected