Abstract.
We study two-body correlations in a many-boson system with a hyperspherical approach, where we can use arbitrary scattering length and include two-body bound states. As a special application we look on Bose-Einstein condensation and calculate the stability criterium in a comparison with the experimental criterium and the theoretical criterium from the Gross-Pitaevskii equation.
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Sørensen, O., Fedorov, D. & Jensen, A. Condensates and Correlated Boson Systems. Few-Body-Systems 34, 203–208 (2004). https://doi.org/10.1007/s00601-004-0040-8
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DOI: https://doi.org/10.1007/s00601-004-0040-8