First order phase transition of the q-state Potts model in two dimensions

Details First order phase transition of the q-state Potts model in two dimensions First order phase transition of the q-state Potts model in two dimensions

2000-07-19

arxiv.org/abs/hep-lat/0007025v1

Physics

High Energy Physics

High Energy Physics - Lattice

9 pages, LaTex, 1 figures, Proceedings of the International Workshop on Nonperturbative Methods and Lattice QCD, Guangzhou, Ma

Scientific paper

We have calculated the large-$q$ series of the energy cumulants, the magnetization cumulants and the correlation length at the first order phase transition point both in the ordered and disordered phases for the $q$-state Potts model in two dimensions. The series enables us to estimate the numerical values of the quantities more precisely by a factor of $10^2 - 10^4$ than the Monte Carlo simulations. From the large-$q$ series of the eigenvalues of the transfer matrix, we also find that the excited states form a continuum spectrum and there is no particle state at the first order phase transition point.

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