Quantitative studies of the critical regime near the superfluid-to-Mott-insulator transition
Quantitative studies of the critical regime near the superfluid-to-Mott-insulator transition
We investigate the critical behaviors of correlation length and critical exponents for strongly interacting bosons in a two-dimensional optical lattice via quantum Monte Carlo simulations. By comparing the full numerical results to those given by the effective theory, we quantitatively determine the critical regime where the universal scaling behaviors apply …