Quantum critical behavior of a three-dimensional superfluid-Mott glass transition
Quantum critical behavior of a three-dimensional superfluid-Mott glass transition
The superfluid to insulator quantum phase transition of a three-dimensional particle-hole symmetric system of disordered bosons is studied. To this end, a site-diluted quantum rotor Hamiltonian is mapped onto a classical (3+1)-dimensional XY model with columnar disorder and analyzed by means of large-scale Monte Carlo simulations. The superfluid-Mott insulator transition …