von Boehn Moritz, Schaper Jan, Coenders Julia A, Brombacher Johannes, Meiners Teresa, Niemann Malte, Cornejo Juan M, Ulmer Stefan, Ospelkaus Christian
Institut für Quantenoptik, Leibniz Universität Hannover, Hannover, Germany.
RIKEN, Ulmer Fundamental Symmetries Laboratory, Wako, Japan.
Commun Phys. 2025;8(1):107. doi: 10.1038/s42005-025-02031-2. Epub 2025 Mar 19.
Multi-Penning traps are an excellent tool for high-precision tests of fundamental physics in a variety of applications, ranging from atomic mass measurements to symmetry tests. In such experiments, single ions are transferred between distinct trap regions as part of the experimental sequence, resulting in measurement dead time and heating of the ion motions. Here, we report a procedure to reduce the duration of adiabatic single-ion transport in macroscopic multi-Penning-trap stacks by using ion-transport waveforms and electronic filter predistortion. For this purpose, transport adiabaticity of a single laser-cooled Beis analyzed via Doppler-broadened sideband spectra obtained by stimulated Raman spectroscopy, yielding an average heating per transport of 2.6 ± 4.0 quanta for transport times between 7 and 15 ms. Applying these techniques to current multi-Penning trap experiments could reduce ion transport times by up to three orders of magnitude. Furthermore, these results are a key requisite for implementing quantum logic spectroscopy in Penning trap experiments.
多彭宁阱是一种出色的工具，适用于各种应用中的高精度基础物理测试，范围从原子质量测量到对称性测试。在这类实验中，单离子作为实验序列的一部分在不同的阱区域之间转移，这会导致测量死时间和离子运动的加热。在此，我们报告一种通过使用离子传输波形和电子滤波器预失真来减少宏观多彭宁阱堆栈中绝热单离子传输持续时间的方法。为此，通过受激拉曼光谱获得的多普勒加宽边带光谱分析单个激光冷却铍离子的传输绝热性，对于7至15毫秒之间的传输时间，每次传输的平均加热量为2.6±4.0个量子。将这些技术应用于当前的多彭宁阱实验可将离子传输时间减少多达三个数量级。此外，这些结果是在彭宁阱实验中实施量子逻辑光谱的关键必要条件。
