论文标题
三角光学晶格中超低原子的单位分辨成像
Single-site-resolved imaging of ultracold atoms in a triangular optical lattice
论文作者
论文摘要
我们通过采用拉曼侧带冷却，在三角形光学晶格中演示了Ultracold $^{87} \ MATHRM {RB} $原子的单位分辨荧光成像。在D1线上结合了拉曼过渡和通过D2线的光学泵送的光子散射，我们获得了低背景噪声的图像。用拉曼边带冷却对11个实验参数的贝叶斯优化，使我们能够以$（96.3 \ pm 1.3）$％的高保真度实现单原子检测。三角光学晶格中的单位原子和单位点解析检测为直接观察自旋相关性或几何沮丧系统中的纠缠铺平了道路。
We demonstrate single-site-resolved fluorescence imaging of ultracold $^{87}\mathrm{Rb}$ atoms in a triangular optical lattice by employing Raman sideband cooling. Combining a Raman transition at the D1 line and a photon scattering through an optical pumping of the D2 line, we obtain images with low background noise. The Bayesian optimisation of 11 experimental parameters for fluorescence imaging with Raman sideband cooling enables us to achieve single-atom detection with a high fidelity of $(96.3 \pm 1.3)$%. Single-atom and single-site resolved detection in a triangular optical lattice paves the way for the direct observation of spin correlations or entanglement in geometrically frustrated systems.
