MONTE-CARLO SIMULATIONS FOR A KINETIC GROWTH-MODEL

We simulate a kinetic growth model on the square lattice using a Monte Carlo approach in order to study ramified polymerization with short-d istance attractive interactions between monomers. The phase boundary s eparating finite from infinite growth regimes is obtained in the (T, b ) space, where T is the reduced temperature and b is the branching pro bability. In the thermodynamic limit, we extrapolate the temperature T = 0.102 +/- 0.005 below which the phase is found to be always infini te. We also observe the occurrence of a roughening transition at the p olymer surface.