Lieb–Schultz–Mattis Type Theorems for Quantum Spin Chains Without Continuous Symmetry
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DOI: 10.1007/s00220-019-03343-5
Abstract: We prove that a quantum spin chain with half-odd-integral spin cannot have a unique ground state with a gap, provided that the interaction is short ranged, translation invariant, and possesses time-reversal symmetry or $${\mathbb{Z}_{2} \times… read more here.
Keywords: schultz mattis; lieb schultz; quantum spin; mattis type ... See more keywords