[SEMINARI]: Dr. Burgess: Quantum Hall Effect: ``Two-dimensional Electron Systems: Duality in the Laboratory?''

[Arcadi Santamaria Luna]

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                              S E M I N A R I

             [Image]   Departament de Física Teòrica    [Image]
                          Universitat de València
                       Institut de Física Corpuscular
                       Universitat de València - CSIC

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     Quantum Hall Effect: ``Two-dimensional Electron Systems: Duality in the
                                  Laboratory?''

                              Dr. Cliff Burgess

                  (Institute for Advanced Study, Princeton)

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                              Seminari del IFIC
                  Friday 06 of October of 2000 at 12:00 PM
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                                    Resum

   Many features of Quantum Hall systems seem to be well described by the
    assumption that the important charge carriers are weakly interacting
 particles and vortices, which enjoy a large duality symmetry group (a level
two subgroup of SL(2,Z)) which is based on particle-vortex interchange. This
 talk is meant as an introductiona to Quantum Hall systems with an emphasis
on the evidence for the existence of this duality symmetry. A generalization
     of the symmetry to other two-dimensional systems is then proposed.

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