Internal Josephson-like tunnelling in two-component Bose–Einstein condensates affected by sign of the atomic interaction and external trapping potential

This paper studies the Josephson-like tunnelling in two-component Bose–Einstein condensates coupled with microwave field, which is in respond to various attractive and repulsive atomic interaction under the various aspect ratio of trapping potential. It is very interesting to find that the dynamic of Josephson-like tunnelling can be controlled from fast damped oscillations to nondamped oscillation, and relative number of atoms changes from asymmetric occupation to symmetric occupation correspondingly.