Exact results for one-dimensional disordered bosons with strong repulsion

Phys Rev Lett. 2005 Feb 18;94(6):060402. doi: 10.1103/PhysRevLett.94.060402. Epub 2005 Feb 15.

Abstract

We study one-dimensional disordered bosons with strong repulsive interactions. A Bose-Fermi mapping expresses this problem in terms of noninteracting Anderson-localized fermions, whereby known results for the distribution function of the local density of states, the spectral statistics, and density-density correlations can be transferred to this new domain of applicability. We show that disorder destroys bosonic quasi-long-range order by calculating the momentum distribution, and comment on the experimental observability of these predictions in ultracold atomic gases.