QUANTUM-DOT EXCITATION SPECTRUM - LAUGHLIN-LIKE STATES

被引:20
|
作者
JOHNSON, NF
机构
[1] Departamento de Física, Universidad de Los Andes, Bogòta
来源
PHYSICAL REVIEW B | 1992年 / 46卷 / 04期
关键词
D O I
10.1103/PhysRevB.46.2636
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The excitation spectrum of an interacting electron gas in a quantum dot is discussed in the large-magnetic-field regime using a recently introduced exactly solvable model. The spectrum exhibits complex crossings as a function of the strength of the electron-electron interaction. The corresponding eigenfunctions are generalizations of Laughlin wave functions, but include significant inter-Landau-level mixing. Laughlin quasiparticles represent a poor description of the elementary excitations.
引用
收藏
页码:2636 / 2639
页数:4
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