2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/23285We describe a novel simulation method that eliminates the slowing-down problem in the Monte Carlo simulations of imaginary-time path integrals near the continuum limit. This method combines a stochastic blocking procedure with the multigrid method to rapidly accelerate the sampling of paths in a quantum Monte Carlo simulation, making its dynamics more ergodic. The effectiveness and efficiency of this method are demonstrated for several one-dimensional quantum systems and compared to other standard and accelerated methods.9 pages, 12 figures. J. Phys. Chem. B (in press)Statistical Mechanicstext