Binding transition in quantum hall edge states

Hsien Chung Kao, Chia Hung Chang, Xiao Gang Wen

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

We study a class of Abelian quantum Hall (QH) states which are topologically unstable (T-unstable). We find that the T-unstable QH states can have a phase transition on the edge which causes a binding between electrons and reduces the number of gapless edge branches. After the binding transition, the single-electron tunneling into the edge gains a finite energy gap, and only certain multi-electron co-tunneling (such as three-electron co-tunneling for υ=9/5 edges) can be gapless. Similar phenomenon also appear for edge state on the boundary between certain QH states. For example edge on the boundary between υ=2 and υ=1/5 states only allow three-electron co-tunneling at low energies after the binding transition.

Original languageEnglish
Pages (from-to)5563-5566
Number of pages4
JournalPhysical Review Letters
Volume83
Issue number26
DOIs
Publication statusPublished - 1999 Jan 1

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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