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Title:
"W-infinity Symmetry in the Quantum Hall Effect Beyond the Edge"

Speaker:
Andrea Cappelli

Abstract:
The description of chiral quantum incompressible fluids by the W-infinity 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.

Link:
http://scgp.stonybrook.edu/video_portal/video.php?id=4740

Workshop:
Simons- Workshop: Quantum Hall Effect: Status Report