most citedA discriminating string order parameter for topological phases of gapped SU(N) spin chains

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cond-mat.str-el2012★ 32 cited

A discriminating string order parameter for topological phases of gapped SU(N) spin chains

Kasper Duivenvoorden, Thomas Quella

One-dimensional gapped spin chains with symmetry PSU(N) = SU(N)/Z_N are known to possess N different topological phases. In this paper, we introduce a non-local string order parame…