Abstract
Using Griffiths and Lieb–Simon type inequalities, it is shown that the two-point function of ferromagnetic spin models with N components in one dimension decays like the interaction J(n)∼n −γ provided that 1≤N≤4 and T>T c.
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Spohn, H., Zwerger, W. Decay of the Two-Point Function in One-Dimensional O(N) Spin Models with Long-Range Interactions. Journal of Statistical Physics 94, 1037–1043 (1999). https://doi.org/10.1023/A:1004595419419
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DOI: https://doi.org/10.1023/A:1004595419419