涂色加载：一种用于加载空间大光学镊子阵列的工具包
Painted loading: a toolkit for loading spatially large optical tweezer arrays
AI总结：
该研究通过扫频冷却光频率，实现了空间更大光学镊子阵列的加载，提高了原子分布控制精度和阵列温度控制能力。
摘要：
中性原子在光学镊子中的阵列被广泛用于量子模拟和计算，以及精密频率计量学。通过最大化可用站点的数量来增强这些阵列的能力。在这里，我们通过扫频冷却光的频率，将原子储备跨阵列移动，从而扩大二维锶-88原子阵列的空间范围。我们加载了垂直高度超过100微米的阵列，超过了从静态储备加载的阵列高度的3倍以上。我们研究了站点间原子数分布、镊子寿命和温度，实现了阵列中平均温度为1.49(3)微开尔文。通过控制扫频频率，我们展示了可以控制原子在阵列中的分布，包括均匀和非均匀加载的阵列，以及选择性加载区域的阵列。我们用一个速率方程模型来解释我们的结果，该模型与数据有良好的定性一致性。
英文摘要：
Arrays of neutral atoms in optical tweezers are widely used in quantum simulation and computation, and precision frequency metrology. The capabilities of these arrays are enhanced by maximising the number of available sites. Here we increase the spatial extent of a two-dimensional array of strontium-88 atoms by sweeping the frequency of the cooling light to move the atomic reservoir across the array. We load arrays with vertical heights of >100 μm, exceeding the height of an array loaded from a static reservoir by a factor of >3. We investigate the site-to-site atom number distribution, tweezer lifetime, and temperature, achieving an average temperature across the array of 1.49(3) μK. By controlling the frequency sweep we show it is possible to control the distribution of atoms across the array, including uniform and non-uniformly loaded arrays, and arrays with selectively loaded regions. We explain our results using a rate equation model which is in good qualitative agreement with the data.
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