Gauge invariance and the critical properties of quantum Hall plateau transitions

被引：0
|
作者：
LeClair, A [1 ]
机构：
[1] Cornell Univ, Newman Lab, Ithaca, NY 14853 USA
来源：
PHYSICAL REVIEW B | 2000年 / 61卷 / 16期
关键词：
D O I：
10.1103/PhysRevB.61.10917
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A model consisting of a single massless scalar field with a topological coupling to a pure gauge field is defined and studied. It possesses an SL(2, Z) symmetry as a consequence of the gauge invariance. In an attempt to describe transitions between quantum Hall plateaus, we add a certain realization of impurities to the model, with no disorder. We argue that this leads to a correlation length exponent of 20/9.
引用
收藏
页码：10917 / 10928
页数：12
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