Dark-State Enhanced Loading of an Optical Tweezer Array
Dark-State Enhanced Loading of an Optical Tweezer Array
复制标题
光镊阵列的暗态增强加载
DOI：
10.1103/physrevlett.130.193402
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发表时间：
2023
影响因子：
8.6
通讯作者：
Endres, Manuel
中科院分区：
文献类型：
--
作者：
Shaw, Adam L.;Scholl, Pascal;Finklestein, Ran;Madjarov, Ivaylo S.;Grinkemeyer, Brandon;Endres, Manuel
光镊中捕获的中性原子和分子已成为量子模拟、计算和计量学的普遍资源。然而，这种阵列的最大可实现的系统尺寸通常受到加载到光镊中的随机性的限制，典型的加载概率仅为50%。在这里，我们提出了一个物种不可知的方法，基于实时反馈，长期搁置状态，迭代数组重载的暗态增强加载（DSEL）。我们用95个原子的镊子阵列演示了这种技术，在一维上实现了84.02（4）%的最大装载概率和91个原子的最大阵列尺寸。我们的协议是互补的，并兼容，现有的计划，增强负载的基础上直接控制光辅助碰撞，我们预测它可以使接近统一的填充原子或分子阵列。
Neutral atoms and molecules trapped in optical tweezers have become a prevalent resource for quantum simulation, computation, and metrology. However, the maximum achievable system sizes of such arrays are often limited by the stochastic nature of loading into optical tweezers, with a typical loading probability of only 50%. Here we present a species-agnostic method for dark-state enhanced loading (DSEL) based on real-time feedback, long-lived shelving states, and iterated array reloading. We demonstrate this technique with a 95-tweezer array ofatoms, achieving a maximum loading probability of 84.02(4)% and a maximum array size of 91 atoms in one dimension. Our protocol is complementary to, and compatible with, existing schemes for enhanced loading based on direct control over light-assisted collisions, and we predict it can enable close-to-unity filling for arrays of atoms or molecules.