https://doi.org/10.1140/epjb/e2005-00164-9
Assessment of interspecies scattering lengths a12 from stability of two-component Bose-Einstein condensates
Institute of Physics,
Budapest University of Technology and Economics,
1111, Budafoki út 8, Hungary
Corresponding author: a schumayer@phy.bme.hu
Received:
17
September
2004
Revised:
25
February
2005
Published online:
16
June
2005
A stability method is used to assess possible values of interspecies scattering lengths a12 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 a12 are in a reasonable agreement with the few ones available in the literature and with those obtained from a Painlevé analysis of the coupled Gross-Pitaevskii equations.
PACS: 03.75.Lm – Tunneling, Josephson effect, Bose-Einstein condensates in periodic potentials, solitons, vortices and topological excitations / 03.75.Mn – Multicomponent condensates; spinor condensates / 03.75.Nt – Other Bose-Einstein condensation phenomena / 42.65.Tg – Optical solitons; nonlinear guided waves
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2005
