Abstract
We show how two-dimensional incompressible quantum fluids and their excitations can be viewed as edge conformal field theories, thereby providing an algebraic characterization of incompressibility. The Kac-Radul representation theory of the algebra leads then to a purely algebraic complete classification of hierarchical quantum Hall states, which encompasses all measured fractions. Spin-polarized electrons in single-layer devices can only have Abelian anyon excitations.
- Received 27 October 1993
DOI:https://doi.org/10.1103/PhysRevLett.72.1902
©1994 American Physical Society