Abstract We present an alternative approach for interconnecting trapped ion processor nodes by deterministic single ion transfer. In our experiments, we demonstrate the single ion extraction out of a linear Paul trap, into a free space trajectory, followed by recapture in the trapping potential. We recapture in the same trap, coined the ion fountain operation after a free-space travel of distance 110 mm and a time of flight of 7 μs. Our experimental realization yields a success probability of 95.1%, namely 715 out of 752 extracted ions are retrapped, cooled and observed. Based on such high success rate, we discuss the future perspective for an application towards scalable ion trap quantum computing and advanced quantum sensing.

中文翻译：

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确定性单离子喷泉

摘要我们提出了一种通过确定性单离子转移来互连捕获离子处理器节点的替代方法。在我们的实验中，我们展示了单离子从线性保罗阱中提取到自由空间轨迹中，然后在捕获电位中重新捕获。我们在同一个陷阱中重新捕获，在距离为 110 毫米的自由空间旅行和 7 微秒的飞行时间后创造了离子喷泉操作。我们的实验实现产生了 95.1% 的成功概率，即 752 个提取离子中的 715 个被重新捕获、冷却和观察。基于如此高的成功率，我们讨论了可扩展离子阱量子计算和高级量子传感应用的未来前景。