Journal of High Energy Physics (May 2021)

W-infinity symmetry in the quantum hall effect beyond the edge

  • Andrea Cappelli,
  • Lorenzo Maffi

DOI
https://doi.org/10.1007/JHEP05(2021)120
Journal volume & issue
Vol. 2021, no. 5
pp. 1 – 39

Abstract

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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.

Keywords