Title of article
SU(4) quantum coherence and interlayer tunneling in bilayer quantum Hall systems
Author/Authors
Z.F. Ezawa، نويسنده , , K. Hasebe، نويسنده , , A. Sawada، نويسنده ,
Issue Information
دوهفته نامه با شماره پیاپی سال 2002
Pages
4
From page
24
To page
27
Abstract
We construct an effective Hamiltonian for bilayer quantum Hall ferromagnets, where the SU(4) nonlinear sigma model supports the SU(4) quantum coherence. At ν=1 there are three independent soft waves and three basic skyrmions. At ν=2 there exist two phases in each of which there are one soft wave and one biskyrmion. Interlayer tunneling occurs via the pseudospin soft mode not only at ν=1 but also at ν=2.
Keywords
Quantum Hall effect , Macroscopic coherence , Skyrmion , Bilayer system
Journal title
Physica E Low-dimensional Systems and Nanostructures
Serial Year
2002
Journal title
Physica E Low-dimensional Systems and Nanostructures
Record number
1050031
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