The one-dimensional Ising model with a t
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Pierre Pfeuty
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Article
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1970
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Elsevier Science
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English
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The one-dimensional Ising model with a transverse field is solved exactly by transforming the set of Pauli operators to a new set of Fermi operators. The elementary excitations, the ground-state energy and the free energy are found. The instantaneous correlation function between any two spins is cal