Variable range hopping and quantum creep in one dimension
无序系统与神经网络
2007-05-23 v1 强关联电子
摘要
We study the quantum non linear response to an applied electric field of a one dimensional pinned charge density wave or Luttinger liquid in presence of disorder. From an explicit construction of low lying metastable states and of bounce instanton solutions between them, we demonstrate quantum creep as well as a sharp crossover at towards a linear response form consistent with variable range hopping arguments, but dependent only on electronic degrees of freedom.
引用
@article{arxiv.cond-mat/0303233,
title = {Variable range hopping and quantum creep in one dimension},
author = {Thomas Nattermann and Thierry Giamarchi and Pierre Le Doussal},
journal= {arXiv preprint arXiv:cond-mat/0303233},
year = {2007}
}