On the van Hove weak-coupling limit for impurity scattering of a quantum particle on a lattice

被引：0
|
作者：
Maes, C
Spitzer, W
机构：
[1] Instituut voor Theoretische Fysica, Katholieke Universiteit Leuven, B-3001 Leuven
[2] Vienna, A-1090
来源：
JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL | 1996年 / 29卷 / 10期
关键词：
D O I：
10.1088/0305-4470/29/10/031
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We consider the problem of quantum impurity scattering for a particle on a lattice via a non-perturbative approach. We calculate the weak-coupling limit in the case of a directed lattice (tree) and we show what problems arise in the more general case due to recurrence effects. Our methods relate the problem to that of a random walk in a random environment.
引用
收藏
页码：2553 / 2565
页数：13
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