M. Jauhar Kholili, Siska A. Rifianti, Eny Latifah, Ahmad R. T. Nugraha
We develop an unconventional Monte Carlo simulation within the phase-space formulation of quantum mechanics taking into account a global-nonseparable random variable whose strength is epistemically restricted on the order of Planck's constant. Compared to the ordinary variational Monte simulation, we find that energy expectation values of simple quantum systems such like harmonic oscillators can be calculated by our method with a reasonable accuracy and competitive calculation time at a large sampling N of random numbers (e.g., at N > 105 samples). We also discuss the comparison of simulations performed in different computing resources. © 2022 Author(s).
Research Center for Physics, National Research and Innovation Agency (BRIN), Tangerang Selatan, 15314, Indonesia; Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Malang, 65145, Indonesia