Insulating Phases and Superfluid-Insulator Transition of Disordered Boson Chains
Insulating Phases and Superfluid-Insulator Transition of Disordered Boson Chains
Using a strong disorder real-space renormalization group, we study the phase diagram of a fully disordered chain of interacting bosons. Since this approach does not suffer from runaway flows, it allows a direct study of the insulating phases, not accessible in a weak disorder perturbative treatment. We find that the …