科研之友
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摘要
The oscillation coupling and different nonlinear effects are observed in a single trapped 40 Ca+ ion confined in our home-built surface-electrode trap (SET). The coupling and the nonlinearity are originated from the high-order multipole potentials, such as hexapole and octopole potentials, due to different layouts and the fabrication asymmetry of the SET. We solve a complicated Duffing equation with coupled oscillation terms by the multiple-scale method, which fits the experimental values very well. Our investigation in the SET helps for exploring multidimensional nonlinearity using currently available techniques and for suppressing instability of qubits in quantum information processing with trapped ions.
- 出版日期2014-1
- 单位中国科学院武汉物理与数学研究所; 波谱与原子分子物理国家重点实验室; 中国科学院大学
