Physics – Mathematical Physics
Scientific paper
2005-03-12
J. Stat. Phys. (2005) 121, pp. 553-577
Physics
Mathematical Physics
14 pp., Revtex4
Scientific paper
10.1007/s10955-005-7579-8
We generalize the number theoretic spin chain, a one-dimensional statistical model based on the Farey fractions, by introducing a new parameter x>=0. This allows us to write recursion relations in the length of the chain. These relations are closely related to the Lewis three-term equation, which is useful in the study of the Selberg \zeta-function. We then make use of these relations and spin orientation transformations. We find a simple connection with the transfer operator of a model of intermittency in dynamical systems. In addition, we are able to calculate certain spin expectation values explicitly in terms of the free energy or correlation length. Some of these expectation values appear to be directly connected with the mechanism of the phase transition.
Fiala Jan
Kleban Peter
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