Exact results for the zeros of the partition function of the Potts model on finite lattices
arXiv:cond-mat/9909392 · doi:10.1016/S0378-4371(00)00022-4
Abstract
The Yang-Lee zeros of the Q-state Potts model are investigated in 1, 2 and 3 dimensions. Analytical results derived from the transfer matrix for the one-dimensional model reveal a systematic behavior of the locus of zeros as a function of Q. For 1<Q<2 the zeros in the complex plane lie inside the unit circle, while for Q>2 they lie outside the unit circle for finite temperature. In the special case Q=2 the zeros lie exactly on the unit circle as proved by Lee and Yang. In two and three dimensions the zeros are calculated numerically and behave in the same way. Results are also presented for the critical line of the Potts model in an external field as determined from the zeros of the partition function in the complex temperature plane.
15 pages, 6 figures, RevTeX
References in corpus (3)
Cited by in corpus (10)
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- Partition function zeros of the Q-state Potts model on the simple-cubic lattice
- Exact solution of a classical short-range spin model with a phase transition in one dimension: the Potts model with invisible states
- Yang-Lee Zeros of the Q-state Potts Model on Recursive Lattices
- Classical phase transitions in a one-dimensional short-range spin model induced by entropy depletion or complex fields
- Yang-Lee zeros and the critical behavior of the infinite-range two- and three-state Potts models
- Complex-q zeros of the partition function of the Potts model with long-range interactions