Abstract
Rigorous nonperturbative Ornstein-Zernike theory for Ising ferromagnets
M. Campanino, D. Ioffe and Y. Velenik
Europhys. Lett.
62,
no. 2,
182-188
(2003).
We rigorously derive the Ornstein-Zernike asymptotics of the pair-correlation functions for finite-range Ising ferromagnets in any dimensions and at any temperature above critical.
Key words:
Ising model, Ornstein-Zernike decay of correlations, Ruelle operator, renormalization, local limit theorems.
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