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quant-ph2018★ 6 cited
An entropic invariant for 2D gapped quantum phases
Kohtaro Kato, Pieter Naaijkens
We introduce an entropic quantity for two-dimensional (2D) quantum spin systems to characterize gapped quantum phases modeled by local commuting projector code Hamiltonians. The de…
quant-ph2016★ 11 cited
Jones index, secret sharing and total quantum dimension
Leander Fiedler, Pieter Naaijkens, Tobias J. Osborne
We study the total quantum dimension in the thermodynamic limit of topologically ordered systems. In particular, using the anyons (or superselection sectors) of such models, we def…