Feedback-optimized operations with linear ion crystals
Feedback-optimized operations with linear ion crystals
复制标题
使用线性离子晶体进行反馈优化操作
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
K. Singer
中科院分区：
文献类型：
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作者：
J. Eble;S. Ulm;P. Zahariev;F. Schmidt;K. Singer
我们报告运输操作与线性晶体的40Ca+离子通过施加复杂的电时间依赖性电位进行。对于它们的控制，我们使用从离子的荧光获得的信息。我们证明，通过这种反馈技术，我们可以传输预定数量的离子，也分裂和统一的离子晶体。反馈控制允许鲁棒的方案，补偿实验误差，因为它不依赖于预先精确已知的离子阱中的电势的电建模。我们的方法允许我们为所需的过程生成自学习电压斜坡。通过实验证明传输的成功率超过99.8%，这种技术可能有助于未来基于离子的量子处理器的操作。
We report transport operations with linear crystals of 40Ca+ ions performed by applying complex electric time-dependent potentials. For their control we use the information obtained from the ions’ fluorescence. We demonstrate that by means of this feedback technique, we can transport a predefined number of ions and also split and unify ion crystals. The feedback control allows for a robust scheme, compensating for experimental errors, as it does not rely on a precisely known electrical modeling of the electric potentials in the ion trap beforehand. Our method allows us to generate a self-learning voltage ramp for the required process. With an experimental demonstration of a transport with more than 99.8% success probability, this technique may facilitate the operation of a future ion-based quantum processor.