paper

Continuous topological phase transitions between clean quantum Hall states

arXiv:cond-mat/9908394 · doi:10.1103/PhysRevLett.84.3950

Abstract

Continuous transitions between states with the {\em same} symmetry but different topological orders are studied. Clean quantum Hall (QH) liquids with neutral quasiparticles are shown to have such transitions. For clean bilayer (nnm) states, a continous transition to other QH states (including non-Abelian states) can be driven by increasing interlayer repulsion/tunneling. The effective theories describing the critical points at some transitions are derived.

4 pages, RevTeX, 2 eps figures

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