Article,

Cold Bose Gases with Large Scattering Lengths

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Physical Review Letters, 88 (21): 210403+ (May 10, 2002)
DOI: 10.1103/physrevlett.88.210403

Abstract

We calculate the energy and condensate fraction for a dense system of bosons interacting through an attractive short range interaction with positive s-wave scattering length a. At high densities n≫a-3, the energy per particle, chemical potential, and square of the sound speed are independent of the scattering length and proportional to n2/3, as in Fermi systems. The condensate is quenched at densities na3≃1.

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