Exact results for one-dimensional disordered bosons with strong repulsion

Article, Preprint English OPEN
De Martino, A. ; Thorwart, M. ; Egger, R. ; Graham, R. (2004)
  • Publisher: American Physical Society
  • Related identifiers: doi: 10.1103/PhysRevLett.94.060402
  • Subject: QC | Condensed Matter - Statistical Mechanics
    arxiv: Condensed Matter::Quantum Gases | Condensed Matter::Disordered Systems and Neural Networks

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.
  • References (37)
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    5 0 0 2 3 1 A. De Martino,1 M. Thorwart,1 R. Egger,1 and R. Graham2 1Institut fu¨r Theoretische Physik, Heinrich-Heine-Universit¨at, D-40225 Du¨sseldorf, Germany 2Fachbereich Physik, Universit¨at Duisburg-Essen, D-45117 Essen, Germany (Dated: February 2, 2008)

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