%0 Journal Article
%A Tejero, C. F.
%A Cuesta, J. A.
%A Brito, Ricardo
%T Long-range inverse 2-spin correlations in one-dimensional potts lattices
%D 1989
%@ 0022-4715
%U https://hdl.handle.net/20.500.14352/58667
%X The inverse two-spin correlation function of a one-dimensional three-state Potts lattice with constant nearest-neighbor interactions in a uniform external field is derived exactly. It is shown that the external field induces long-range correlations. The inverse two-spin correlation function decays in a monotonie exponential fashion for a ferromagnetic lattice, while it decays in an oscillatory exponential fashion for an antiferromagnetic lattice. With no external field the inverse two-spin correlation function has a finite range equal to that of the interactions.
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