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Ultralong spin decoherence times in graphene quantum dots with a small number of nuclear spins

URN to cite this document:
urn:nbn:de:bvb:355-epub-322380
Fuchs, Moritz ; Schliemann, John ; Trauzettel, Björn
Date of publication of this fulltext: 22 Jul 2015 09:53


Abstract

We study the dynamics of an electron spin in a graphene quantum dot, which is interacting with a bath of less than ten nuclear spins via the anisotropic hyperfine interaction. Due to substantial progress in the fabrication of graphene quantum dots, the consideration of such a small number of nuclear spins is experimentally relevant. This choice allows us to use exact diagonalization to calculate ...

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