  We investigate the quantum phase transitions of a disordered nanowire from
superconducting to metallic behavior by employing extensive Monte Carlo
simulations. To this end, we map the quantum action onto a (1+1)-dimensional
classical XY model with long-range interactions in imaginary time. We then
analyze the finite-size scaling behavior of the order parameter susceptibility,
the correlation time, the superfluid density, and the compressibility. We find
strong numerical evidence for the critical behavior to be of
infinite-randomness type and to belong to the random transverse-field Ising
universality class, as predicted by a recent strong disorder renormalization
group calculation.
