Cold Bose gases with large scattering lengths

Details Cold Bose gases with large scattering lengths Cold Bose gases with large scattering lengths

2001-06-29

arxiv.org/abs/cond-mat/0106628v1

Phys.Rev.Lett. 88 (2002) 210403

Physics

Condensed Matter

4 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.88.210403

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 $n^{2/3}$, as in Fermi systems.

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