Universal Superfluid Transition and Transport Properties of Two-Dimensional Dirty Bosons
Universal Superfluid Transition and Transport Properties of Two-Dimensional Dirty Bosons
We study the phase diagram of two-dimensional, interacting bosons in the presence of a correlated disorder in continuous space, by using large-scale quantum Monte Carlo simulations at finite temperature. We show that the superfluid transition is strongly protected against disorder. It remains of the Berezinskii-Kosterlitz-Thouless type up to disorder strengths …