A Matrix Model for Bilayered Quantum Hall Systems

Details A Matrix Model for Bilayered Quantum Hall Systems A Matrix Model for Bilayered Quantum Hall Systems

2003-04-24

arxiv.org/abs/hep-th/0304207v2

J.Phys.A37:3147-3158,2004

Physics

High Energy Physics

High Energy Physics - Theory

14 pages, minor changes in introduction and references added, published in JPA

Scientific paper

10.1088/0305-4470/37/9/007

We develop a matrix model to describe bilayered quantum Hall fluids for a series of filling factors. Considering two coupling layers, and starting from a corresponding action, we construct its vacuum configuration at \nu=q_iK_{ij}^{-1}q_j, where K_{ij} is a 2\times 2 matrix and q_i is a vector. Our model allows us to reproduce several well-known wave functions. We show that the wave function \Psi_{(m,m,n)} constructed years ago by Yoshioka, MacDonald and Girvin for the fractional quantum Hall effect at filling factor {2\over m+n} and in particular \Psi_{(3,3,1)} at filling {1\over 2} can be obtained from our vacuum configuration. The unpolarized Halperin wave function and especially that for the fractional quantum Hall state at filling factor {2\over 5} can also be recovered from our approach. Generalization to more than 2 layers is straightforward.

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