Quasi-state decompositions for quantum spin systems
classification
❄️ cond-mat
keywords
quantumspinstatesdecompositionsgroundquasi-statesomesystems
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I discuss the concept of quasi-state decompositions for ground states and equilibrium states of quantum spin systems. Some recent results on the ground states of a class of one-dimensional quantum spin models are summarized and new work in progress is presented. I also outline some challenging open problems and conjectures.
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