Matrix Model Description of Laughlin Hall States

Details Matrix Model Description of Laughlin Hall States Matrix Model Description of Laughlin Hall States

2004-10-13

arxiv.org/abs/hep-th/0410151v2

J.Stat.Mech.0505:P05001,2005

Physics

High Energy Physics

High Energy Physics - Theory

31 pages, large additions on the path integral and overlaps, and on the W-infinity symmetry

Scientific paper

10.1088/1742-5468/2005/05/P05001

We analyze Susskind's proposal of applying the non-commutative Chern-Simons theory to the quantum Hall effect. We study the corresponding regularized matrix Chern-Simons theory introduced by Polychronakos. We use holomorphic quantization and perform a change of matrix variables that solves the Gauss law constraint. The remaining physical degrees of freedom are the complex eigenvalues that can be interpreted as the coordinates of electrons in the lowest Landau level with Laughlin's wave function. At the same time, a statistical interaction is generated among the electrons that is necessary to stabilize the ground state. The stability conditions can be expressed as the highest-weight conditions for the representations of the W-infinity algebra in the matrix theory. This symmetry provides a coordinate-independent characterization of the incompressible quantum Hall states.

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