• 文献标题:   Chiral p-wave superconductivity in twisted bilayer graphene from dynamical mean field theory
  • 文献类型:   Article
  • 作  者:   PAHLEVANZADEH B, SAHEBSARA P, SENECHAL D
  • 作者关键词:  
  • 出版物名称:   SCIPOST PHYSICS
  • ISSN:   2542-4653
  • 通讯作者地址:  
  • 被引频次:   0
  • DOI:   10.21468/SciPostPhys.11.1.017
  • 出版年:   2021

▎ 摘  要

We apply cluster dynamical mean field theory with an exact-diagonalization impurity solver to a Hubbard model for magic-angle twisted bilayer graphene, built on the tight-binding model proposed by Kang and Vafek [1], which applies to the magic angle 1.30 degrees. We find that triplet superconductivity with p + ip symmetry is stabilized by CDMFT, as well as a subdominant singlet d + id state. A minimum of the order parameter exists close to quarter-filling and three-quarter filling, as observed in experiments.