We investigate the influence of intraspecies interactions on the structure and diversity of the wetting phase diagram in a dilute ternary Bose-Einstein condensates. Within the GP formalism, we employ the double-parabola approximation to describe the interfacial properties of the system in the limit of strong segregation between two of the components. Our analysis focuses on the static behavior near degenerate points where distinct phase boundaries intersect in the parameter space defined by the healing-length ratios. We demonstrate that the first-order and critical wetting transition lines, along with the nucleation line intersect at a unique degenerate point. This finding contrasts with previous studies in the interspecies interaction space, where two degenerate points were observed. These results provide new insights into the interfacial phase behavior of multicomponent quantum gases and offer theoretical guidance for experimental explorations of wetting phenomena in ultracold atomic systems.
Categories: cond-mat.quant-gas