Chaos in BEC trapped in tilted optical superlattice potential with attractive interaction

The chaos in Bose-Einstein condensate (BEC) in a 1-D tilted optical superlattice potential is studied numerically in this paper. Numerical analysis using the Gross- Pitaevskii (G-P) equation for the system with attractive interaction reveals that as the tilt of the optical superlattice potential is increased the chaos in the BEC increases. This makes the system more unstable and the phase-space orbit increases. The chaos increases as the secondary optical lattice potential increases.