The dynamical exponent z is obtained through a Monte Carlo renormalisation group calculation for the two-dimensional three-state Potts model with nonconserved dynamics. The value of z is found to be z=2.7-or+0.4.
We have found using the dynamic Monte Carlo renormalization-group method that the dynamic critical exponent z for the three-state Potts model on a square lattice has the value 2.7\ifmmode\pm\else\textpm\fi{}0.4.