Controlling the anharmonicity of a time-orbiting potential trap

摘要

A time-orbiting potential trap can provide stable con nement for ultracold atoms. To lowest order the potentialis harmonic, but it intrinsically includes anharominic contributions. These contributions are analyzed in termsof both the time-averaging mechanism and the inhomogeneity of the constituent elds. Methods to empiricallycharacterize anharmonicity are developed and demonstrated.