Journal of Low Temperature Physics

, Volume 89, Issue 1–2, pp 67–77 | Cite as

Superfluid-insulator transition in disordered boson systems

  • Nandini Trivedi
  • Salman Ullah
Papers Based On Oral Presentations


We review the localization problem in two dimensions for interacting bosons in a random potential. This problem is intimately related to the study of 4 He adsorbed in porous media, Josephson junction arrays, disordered superconducting films and vortex glasses. Using path integral Monte Carlo techniques, we find a superfluid, a localized or ‘Bose glass’ insulator with gapless excitations, and (at commensurate densities) a Mott insulator with a finite gap to excitations.


Vortex Porous Medium Magnetic Material Localization Problem Josephson Junction 
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Copyright information

© Plenum Publishing Corporation 1992

Authors and Affiliations

  • Nandini Trivedi
    • 1
  • Salman Ullah
    • 2
  1. 1.Materials Science Division, Bldg. 223Argonne National LaboratoryArgonne
  2. 2.James Franck InstituteChicago

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