Sine-Squared Potential and Chaotic Behaviour of Strained Superlattice
正弦平方势与形变超晶格系统的混沌行为

s:It is assumed that a periodic modulation is equivalent to deflecded channel of the superlattice.The particle motion equation is reduced to the nonlinear differential equation with a damping term and a periodic modulation using sine-squared potential.The global bifurcation and chaotic behaviours are analysed using Melnikov technique,indicating that the random phenomenon of the channelling effect of the superlattice are related to chaotic behaviours of the system.