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Название: A Link Between Quantum and Classical Potts Models
Автор: Matsui T.
Journal of Statistical Physics, Vol. 59, Nos. 3/4, 1990. p. 781-798.
We study ground states of quantum Potts models. We construct ground states of certain d-dimensional quantum models as Gibbs measures of a d-dimensional classical spin system. Our results imply that various phenomena of classical spin systems can also be found in quantum ground states.