摘要
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.
原文 | 英語 |
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頁(從 - 到) | 5563-5566 |
頁數 | 4 |
期刊 | Physical Review Letters |
卷 | 83 |
發行號 | 26 |
DOIs | |
出版狀態 | 已發佈 - 1999 1月 1 |
對外發佈 | 是 |
ASJC Scopus subject areas
- 物理與天文學 (全部)