NEUTRAL SUPERFLUID MODES AND MAGNETIC MONOPOLES IN MULTILAYER QUANTUM HALL SYSTEMS

被引：284

作者：

WEN, XG ^{[1
]}

ZEE, A ^{[1
]}

机构：

[1] UNIV CALIF SANTA BARBARA,INST THEORET PHYS,SANTA BARBARA,CA 93106

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 69卷 / 12期

关键词：

D O I：

10.1103/PhysRevLett.69.1811

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We show that, in the absence of interlayer hopping, the nu = 1/m quantum Hall states in double-layer systems contain a neutral gapless mode with linear dispersion, describing the relative fluctuations of the electron densities in the two layers. At finite temperature the system experiences a Kosterlitz-Thouless transition. In the presence of interlayer hopping an energy gap proportional to the square root of the hopping amplitude will be opened. In field theory this corresponds to a U(1) gauge field acquiring a mass due to the monopole-antimonopole plasma in the (2 + 1)-dimensional spacetime.

引用

页码：1811 / 1814

页数：4

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