Stability of Chiral Luttinger Liquids and Abelian Quantum Hall States.

Preprint
Publisher Website
Google Scholar
Abstract
A criterion is given for topological stability of Abelian quantum Hall states, and of Luttinger liquids at the boundaries between such states; this suggests a selection rule on states in the quantum Hall hierarchy theory. The linear response of Luttinger liquids to electromagnetic fields is described: the Hall conductance is quantized, irrespective of whether edge modes propagate in different directions.