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[02686] Double Conical degeneracy on band structures of periodic Schrödinger operators

  • Session Time & Room : 4E (Aug.24, 17:40-19:20) @E711
  • Type : Contributed Talk
  • Abstract : Our work investigates double Dirac cones occurring near fourfold degenerate points in the band structures of certain operators. It is known that such degeneracy originates in the symmetries of operators. Thus, we introduce a new symmetric structure-the super honeycomb structure and an innovative method to incorporate all the symmetries. Both rigorous proof and numerical simulation of the existence of double Dirac cones in the bands of Schroedinger operators with super honeycomb symmetries will be shown.
  • Classification : 68Q25, 68R10, 68U05
  • Format : Talk at Waseda University
  • Author(s) :
    • Ying Cao (Tsinghua University)