Abstract
We prove that, at low temperature, the line of separation between the two pure phases shows large fluctuations in shape. This implies the translation invariance of the correlation functions associated with some non translation invariant boundary conditions and should be a peculiarity of the dimensionality of the model.
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The functions ϕ and ϕT of this section are obviously not the same as the ones of Theorem 2: there should be no confusion between them since they are defined on completely different spaces.
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This work has been partially supported by the Consiglio Nazionale delle Ricerche (Gruppo Nazionale per l'Analisi Funzionale): CNR(GNAFA).
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Gallavotti, G. The phase separation line in the two-dimensional Ising model. Commun.Math. Phys. 27, 103–136 (1972). https://doi.org/10.1007/BF01645615
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DOI: https://doi.org/10.1007/BF01645615