Cold Bose gases with large scattering lengths
S. Cowell, H. Heiselberg, I. E. Mazets, J. Morales, V. R. Pandharipande, C. J. Pethick
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.
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