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MA: Fachverband Magnetismus

MA 34: Posters: Graphene (with DY/DS/HL/O/TT)

MA 34.2: Poster

Wednesday, April 2, 2014, 17:00–20:00, P1

Bilayer graphene: topological phases and entanglement spectrum — •Sonja Predin and John Schliemann — Institute for Theoretical Physics,University of Regensburg, D-93040 Regensburg, Germany

We present a calculation of the entanglement spectrum of fermions in bilayer graphene. In particular, a non-trivial topological order of the Abelian phase of the time-reversal symmetry breaking d-wave state is studied. We show that the entanglement spectrum is gapped, additionally we show that edge excitations in the entanglement spectrum form doublet Dirac fields around every K point.