We present a tapered Paul trap whose radio frequency electrodes are inclined to the symmetric axis of the endcap electrodes, resulting in a funnel-shaped trapping potential. With this configuration, a charged particle confined in this trap has its radial degrees of freedom coupled to that of the axial direction. The same design was successfully used to experimentally realize a single-atom heat engine, and with this setup amplification of zeptonewton forces was implemented. In this paper, we show the design, implementation, and characterization of such an ion trap in detail. This system offers a high level of control over the ion’s motion. Its novel features promise applications in the field of quantum thermodynamics, quantum sensing, and quantum information.

中文翻译：

---

锥形 Paul 疏水阀的全面研究：从设计到潜在应用


我们提出了一种锥形 Paul 陷阱，其射频电极向端盖电极的对称轴倾斜，从而产生漏斗状的捕获电位。在这种配置下，限制在这个陷阱中的带电粒子的径向自由度与轴向的自由度耦合。相同的设计成功地用于实验实现单原子热机，并通过这种设置实现了 zeptonewton 力的放大。在本文中，我们详细介绍了这种离子阱的设计、实现和表征。该系统对离子的运动进行了高水平的控制。其新颖的功能有望在量子热力学、量子传感和量子信息领域得到应用。