Assessment of interspecies scattering lengths $a_{12}$ from stability of two-component Bose-Einstein condensates

Details Assessment of interspecies scattering lengths $a_{12}$ from stability of two-component Bose-Einstein condensates Assessment of interspecies scattering lengths $a_{12}$ from stability of two-component Bose-Einstein condensates

2004-10-18

arxiv.org/abs/cond-mat/0410438v1

Eur. Phys. J. B 45, 55-61 (2005)

Physics

Condensed Matter

Other Condensed Matter

(8 pages, 4 figures, 3 tables)

Scientific paper

10.1140/epjb/e2005-00164-9

A stability method is used to assess possible values of interspecies scattering lengths a_12 in two-component Bose-Einstein condensates described within the Gross-Pitaevskii approximation. The technique, based on a recent stability analysis of solitonic excitations in two-component Bose-Einstein condensates, is applied to ninety combinations of atomic alkali pairs with given singlet and triplet intraspecies scattering lengths as input parameters. Results obtained for values of a_12 are in a reasonable agreement with the few ones available in the literature and with those obtained from a Painleve analysis of the coupled Gross-Pitaevskii equations.

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