Journal of High Energy Physics (May 2021)
W-infinity symmetry in the quantum hall effect beyond the edge
Abstract
Abstract The description of chiral quantum incompressible fluids by the W ∞ symmetry can be extended from the edge, where it encompasses the conformal field theory approach, to the non-conformal bulk. The two regimes are characterized by excitations with different sizes, energies and momenta within the disk geometry. In particular, the bulk quantities have a finite limit for large droplets. We obtain analytic results for the radial shape of excitations, the edge reconstruction phenomenon and the energy spectrum of density fluctuations in Laughlin states.
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