• 文献标题:   Near-zero modes in superconducting graphene
  • 文献类型:   Article, Proceedings Paper
  • 作  者:   GHAEMI P, WILCZEK F
  • 作者关键词:  
  • 出版物名称:   PHYSICA SCRIPTA
  • ISSN:   0031-8949
  • 通讯作者地址:   Univ Calif Berkeley
  • 被引频次:   21
  • DOI:   10.1088/0031-8949/2012/T146/014019
  • 出版年:   2012

▎ 摘  要

Vortices in the simplest superconducting state of graphene contain very-low-energy excitations whose existence is connected to an index theorem that applies strictly to an approximate form of the relevant Bogoliubov-de Gennes equations. When Zeeman interactions are taken into account, the zero modes required by the index theorem are (slightly) displaced. Thus, the vortices acquire internal structure, which plausibly supports interesting dynamical phenomena.