KINETIC PHASE-TRANSITION OF THE 3-STATE-VECTOR POTTS-MODEL

We have studied the kinetic phase transition of a three-state-vector P otts system on a triangular lattice in contact with a heat bath and su bject to an external energy source. The system evolves via the stochas tic dynamics composed of Glauber and Kawasaki dynamics simulating inte raction with the heat bath and energy source, respectively. The pair a pproximation is used. It is found that there is a paramagnetic-ferroma gnetic transition at small energy flow, and the transition line is obt ained. Also, when the energy is large enough, the system always will b e in the paramagnetic state.