• 文献标题:   Non-Abelian Parton Fractional Quantum Hall Effect in Multilayer Graphene
  • 文献类型:   Article
  • 作  者:   WU YH, SHI T, JAIN JK
  • 作者关键词:   bilayer graphene, trilayer graphene, fractional quantum hall effect, nonabelian anyon
  • 出版物名称:   NANO LETTERS
  • ISSN:   1530-6984 EI 1530-6992
  • 通讯作者地址:   Max Planck Inst Quantum Opt
  • 被引频次:   11
  • DOI:   10.1021/acs.nanolett.7b01080
  • 出版年:   2017

▎ 摘  要

The current proposals for producing non-Abelian anyons and Majorana particles, which are neither fermions nor bosons, are primarily based on the realization of topological superconductivity in two dimensions. We show theoretically that the unique Landau level structure of bilayer graphene provides a new possible avenue for achieving such exotic particles. Specifically, we demonstrate the feasibility of a "parton" fractional quantum Hall (FQH) state, which supports non-Abelian particles without the usual topological superconductivity. Furthermore, we advance this state as the fundamental explanation of the puzzling 1/2 FQH effect observed in bilayer graphene [Kim et al. Nano Lett. 2015, 15, 7445] and predict that it will also occur in trilayer graphene. We indicate experimental signatures that differentiate the parton state from other candidate non-Abelian FQH states and predict that a transverse electric field can induce a. topological quantum phase transition between two distinct non-Abelian FQH states.