Green's-function approach to the edge spectral density

被引:12
|
作者
Han, JH [1 ]
机构
[1] Univ Washington, Dept Phys, Seattle, WA 98195 USA
来源
PHYSICAL REVIEW B | 1997年 / 56卷 / 24期
基金
美国国家科学基金会;
关键词
D O I
10.1103/PhysRevB.56.15806
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
It is shown that the conventional many-body techniques used to calculate the Green's functions can be applied to the wide, compressible edge of a quantum Hall bar. The only ansatz we need is the existence of stable density modes that yields a simple equation of motion of the density operators, We derive the spectral density at a finite temperature and show how the tunneling characteristics of a sharp edge can be deduced as a limiting case. [S0163-1829(97)08739-0].
引用
收藏
页码:15806 / 15813
页数:8
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