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Dresden 2014 – wissenschaftliches Programm

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HL: Fachverband Halbleiterphysik

HL 83: Poster: Graphene (with MA/O)

HL 83.2: Poster

Mittwoch, 2. April 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.

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