, Institute for Theoretical Physics, University of Cologne
[Host: Jeffrey Teo]
Spin chains with PSU(n) symmetry are known to have symmetry protected topological phases distinguished by boundary states. We determine the parent Hamiltonians of some of these phases at the AKLT point. In the adjoint representation we use a graphical method that produces expressions for arbitrary N. Finally we discuss the fate of the Haldane conjecture.
Condensed Matter Seminar
Thursday, March 23, 2017
Physics Building, Room 313
Note special time.
Note special room.
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