Born-Oppenheimer study of two-component few-particle systems under one-dimensional confinement
Born-Oppenheimer study of two-component few-particle systems under one-dimensional confinement
The energy spectrum, atom-dimer scattering length, and atom-trimer scattering length for systems of three and four ultracold atoms with $\ensuremath{\delta}$-function interactions in one dimension are presented as a function of the relative mass ratio of the interacting atoms. The Born-Oppenheimer approach is used to treat three-body (``HHL'') systems of one …