Abstract
In this work we study thev-dimensional Ising model at low temperatures and establish the existence of an upper gap in the energy-momentum spectrum of the two-point function forv≧3. Forv=2, it is known that this gap is absent.
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Communicated by A. Jaffe
Supported in part by Conselho Nacional de Pesquisas (CNPq-Brazil), Universidade Federal de Minas Gerais (Brazil) and the National Science Foundation under Grant PHY76-17191
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Schor, R.S. The particle structure ofv-dimensional Ising models at low temperatures. Commun.Math. Phys. 59, 213–233 (1978). https://doi.org/10.1007/BF01611504
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DOI: https://doi.org/10.1007/BF01611504