Superfluid-insulator transition of disordered bosons in one dimension

@article{Altman2010SuperfluidinsulatorTO,
  title={Superfluid-insulator transition of disordered bosons in one dimension},
  author={Ehud Altman and Yariv Kafri and Anatoli Polkovnikov and Gil Refael},
  journal={Physical Review B},
  year={2010},
  volume={81},
  pages={174528}
}
We study the superfluid-insulator transition in a one-dimensional system of interacting bosons, modeled as a disordered Josephson array, using a strong-randomness real-space renormalization-group technique. Unlike perturbative methods, this approach does not suffer from run-away flows and allows us to study the complete phase diagram. We show that the superfluid-insulator transition is always Kosterlitz-Thouless like in the way that length and time scales diverge at the critical point… Expand

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