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Topological invariants in interacting quantum spin Hall: a cluster perturbation theory approach

Using cluster perturbation theory we calculate Green's functions, quasi-particle energies and topological invariants for interacting electrons on a 2D honeycomb lattice, with intrinsic spin–orbit coupling and on-site e–e interaction. This allows us to define the parameter range (Hubbard U versus spi...

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Guardat en:
Autors principals: F Grandi, F Manghi, O Corradini, C M Bertoni, A Bonini
Format: Artigo
Idioma:Inglês
Publicat: IOP Publishing 2015-01-01
Col·lecció:New Journal of Physics
Matèries:
topological phase
interacting electrons
graphene ribbon
71.10.Fd
71.27.+a
73.43
Accés en línia:https://doi.org/10.1088/1367-2630/17/2/023004
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