Periodical motion of an ion-cloud in an anharmonic Paul trap
Hai Kuo
Interaction between an external detecting field and an ion-cloud in an actual Paul trap is described by the Duffing equation.In this paper,we reported an exactly periodical solution,which reveals the dependence of the trap parameters and external field on the ion-cloud's periodical motion.The result shows that under the periodicity condition the frequency of ion's motion is one third of the frequency of detecting field,the motion amplitude is positively correlated to the frequency and amplitude of the detecting field and the trap frequency respectively,and is negatively correlated with the anharmonic parameters of the Paul trap.
Journal of Atomic and Molecular Physics•Jan 1, 2007•0 citations