Magnetoplasmons and SU(4) symmetry in graphene
arXiv:1104.2023 · doi:10.1088/1742-6596/286/1/012054
Abstract
We study magnetoplasmons or neutral collective excitations of graphene in a strong perpendicular magnetic field, which can be modelled as bound electron-hole pairs. The SU(4) symmetry of graphene arising from spin and valley pseudospin degrees of freedom is explored using Young diagrams to correctly predict the degeneracies of these excitations. The multiplet structure of the states is identical to that of mesons composed of first and second generation quarks.
5 pages, 4 figures, proceedings from Condensed Matter and Materials Physics conference 2010
References in corpus (7)
- The electronic properties of graphene
- Andreev reflection and Klein tunneling in graphene
- Colloquium: The transport properties of graphene: An introduction
- Electron interactions in graphene in a strong magnetic field
- Excitations from Filled Landau Levels in Graphene
- Localized Collective Excitations in Doped Graphene in Strong Magnetic Fields
- Symmetry Content and Observation of Charged Collective Excitations for Graphene in Strong Magnetic Fields