Quantum Monte Carlo Methods in Statistical Mechanics
  This paper deals with the optimization of trial states for the computation of dominant eigenvalues of operators and very large matrices. In addition to preliminary results for the energy spectrum of van der Waals clusters, we review results of the application of this method to the computation of relaxation times of independent relaxation modes at the Ising critical point in two dimensions. 
Vilen Melik-Alaverdian, M.P. Nightingale