MULTIPLE-BRANCH EXCITON ENERGY-SPECTRA IN THE FQHE REGIME

被引：6

作者：

APALKOV, VM ^{[1
]}

RASHBA, EI ^{[1
]}

机构：

[1] LD LANDAU THEORET PHYS INST,MOSCOW 117940,RUSSIA

来源：

SOLID STATE COMMUNICATIONS | 1995年 / 93卷 / 03期

基金：

美国国家科学基金会;

关键词：

FRACTIONAL QUANTUM HALL EFFECT; OPTICAL PROPERTIES;

D O I：

10.1016/0038-1098(94)00758-6

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Spectrum of excitons in a FQHE regime depends on the ratio h/l, h is a distance between electron and hole confinement planes, l is the magnetic length. It comprises a single exciton branch and continuum at h less-than-or-equal-to l/2 and a multiplicity of branches at h > l/2. New branches arise due to charge fractionalization. Their quantum numbers are angular momenta of the internal motion in an exciton. Connection of excitons to the low-energy sector of the quasielectron Hilbert space is established. Projecting rules from a spherical into plane geometry are generalized for composite particle spectra.

引用

页码：193 / 196

页数：4

共 28 条

[1]

APALKOV VM, 1991, JETP LETT+, V54, P155

[2] DOUBLET STRUCTURE OF EMISSION-SPECTRA FROM FRACTIONAL QUANTUM HALL STATES [J].