The stability of a two-component Bose-Einstein condensate is studied. Using the variational method, we investigate the stable and unstable conditions as functions of the particle numbers and the s-wave scattering lengths. We find that interaction between the different species of atoms (simply, interspecies interaction) has significant effects on the stability of each condensate.

Journal of the Physical Society of JapanJun 15, 19997 citations

Stability properties of the two-component Bose-Einstein condensate

Patrik Öhberg

The two-component Bose-Einstein condensate is known to break its symmetry spontaneously. The stability of the symmetric solution has been investigated by solving the ground-state density profiles for different parameter regimes. We emphasize the importance of the trap geometry for the formation of the condensate.

Physical Review AJan 1, 199956 citations