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A stronger version of Bogoliubov's inequality and the Heisenberg model

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Abstract

On the basis of general inequalities in quantum statistical mechanics we derive a rigorous upper bound for the magnetization in the ferromagnetic quantum Heisenberg model with arbitrary spin and dimensionn≧3.

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Authors and Affiliations

  1. Institut für Theoretische Physik der TH Aachen, D-5100, Aachen, Federal Republic of Germany

    G. Roepstorff

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  1. G. Roepstorff
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Communicated by J. L. Lebowitz

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Roepstorff, G. A stronger version of Bogoliubov's inequality and the Heisenberg model. Commun.Math. Phys. 53, 143–150 (1977). https://doi.org/10.1007/BF01609128

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  • DOI: https://doi.org/10.1007/BF01609128

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