This study proposes a method to achieve stable confinement and efficient sympathetic cooling of a mixed ion system in dual radiofrequency (RF) traps by numerical simulations. The dynamic coupling behavior, sympathetic cooling mechanism, and efficiency-affecting factors of the dual RF ion trap system were quantitatively analyzed by molecular dynamics simulations, yielding the stable confinement conditions of three-dimensional (3D) cold ion system in dual RF confinement fields and the characteristics of 3D correlation coupling between intrinsic micromotion and secular motion. The transient processes of ion intrinsic micromotion were also investigated. Herein, a reasonable second trapping potential contributed to the efficient cooling of the ion system and suppression of its micromotion. The effects of the dual RF trapping field strength on the spatial configuration and the dynamic coupling process of sympathetic cooling were investigated in mixed 3D ion crystals with a large mass-to-charge ratio (M/Q) difference, which reveals that simultaneous stable trapping and matching dynamic modes are the key to achieving efficient sympathetic cooling in the two-component ion system. These results are applicable to studies such as quantum logic manipulation, antimatter synthesis, dark ion detection, regulation of ultracold chemical reaction processes, and precision spectral measurements based on sympathetic cooling.

这项研究提出了一种通过数值模拟来实现双射频（RF）阱中混合离子系统的稳定约束和有效同情冷却的方法。通过分子动力学模拟定量分析了双射频离子阱系统的动态耦合行为，同情冷却机理和效率影响因素，从而得出了三维（3D）冷离子系统在双射频限制领域中的稳定约束条件。固有微动与长期运动之间的3D相关耦合特性。还研究了离子固有微运动的瞬态过程。在此，合理的第二捕获势能有助于离子系统的有效冷却和抑制其微运动。在质荷比（M / Q）大的混合3D离子晶体中研究了双RF俘获场强对空间构型和交感冷却的动态耦合过程的影响，这表明同时稳定的俘获匹配的动态模式是在两组分离子系统中实现有效的同情冷却的关键。这些结果适用于诸如量子逻辑操纵，反物质合成，暗离子检测，超冷化学反应过程调节以及基于交感冷却的精密光谱测量等研究。这表明，同时稳定的捕集和匹配的动态模式是在两组分离子系统中实现有效的同情冷却的关键。这些结果可用于诸如量子逻辑操纵，反物质合成，暗离子检测，超冷化学反应过程调节以及基于交感冷却的精密光谱测量等研究。这表明，同时稳定的捕集和匹配的动态模式是在两组分离子系统中实现有效的同情冷却的关键。这些结果可用于诸如量子逻辑操纵，反物质合成，暗离子检测，超冷化学反应过程调节以及基于交感冷却的精密光谱测量等研究。