Special Condensed Matter Seminar, Jerome Dubail, "Fractional Quantum Hall Effect: from bulk model wave functions to the edge theory"
Since the seminal contribution of Laughlin in the early 1980s, a large part of the theoretical work on the FQHE has consisted in cooking up new model wave functions for different filling fractions. One approach, which has subsequently drawn a lot of attention because of its exotic implications (in particular non-abelian statistics), consists in building wave functions out of some 2d conformal field theories. From a different angle, 1+1d conformal field theories have also showed up in in the FQHE as the theories describing the edge excitations of a droplet, and and more recently they appeared in the study of the entanglement spectra of the ground states.
The purpose of this talk is to shed some light on how these different aspects can be related by analyzing the thermodynamic limit of the droplet, much in the spirit of Laughlin's plasma analogy.
This is joint work with Nick Read and Ed Rezayi.
Location: PCTS Seminar Room
Date/Time: 03/28/12 at 3:15 pm - 03/28/12 at 4:45 pm
Category: Condensed Matter Seminar
Department: Physics