Caloric curves for small systems in the nuclear lattice gas model - art. no. 017601

For pedagogical reasons we compute the caloric curve for 11 particles in a 3(3) lattice. Monte Carlo simulation can be avoided and exact results are o btained. We compare canonical and microcanonical results for the caloric cu rve. Even down to this small system, agreement between the canonical model and the microcanonical model is surprisingly good. We point out that the in troduction of kinetic energy in the nuclear lattice gas model modifies the results of the standard lattice gas model in a profound way. The model is a lso used to test the accuracy of the saddle-point approximation for density of states.