Twisted Boundary Condition and Lieb-Schultz-Mattis Ingappability for Discrete Symmetries.
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DOI: 10.1103/physrevlett.126.217201
Abstract: We discuss quantum many-body systems with lattice translation and discrete on-site symmetries. We point out that, under a boundary condition twisted by a symmetry operation, there is an exact degeneracy of ground states if the… read more here.
Keywords: boundary condition; lieb schultz; condition; schultz mattis ... See more keywords