论文标题
原子和高技巧光学腔之间的连续集体牢固耦合
Continuous collective strong coupling between atoms and a high finesse optical cavity
论文作者
论文摘要
我们证明将锶原子连续加载到高技巧环腔中，并以7.5 kHz过渡$^1 {\ rm s} _0 $^_0 $ to $^3 {$^3 {\ rm p p} _1 $ $ $^{_1 $ $ $ $^{_1 $ $。将原子从3D狭窄的线宽糖蜜加载到腔中，从而避免了较大的磁场梯度以及相关的过渡频率扩大。环形腔使我们能够实现确定性传送带，以将原子从加载区域运输，在该区域中，激光冷却束会导致跨纹跨时钟过渡的宽广。我们在羔羊dicke政权的腔内813 nm晶格中最多可捕获$ 10^6 $原子，并沿着空腔轴运输原子。这项工作为创建连续的波浪超级激光器创建具有Millihertz线宽的路径，从而可以搜索新物理学，并在低振动实验室环境之外使用高精度光学频率参考。
We demonstrate continuous loading of strontium atoms into a high finesse ring cavity and observe continuous strong collective coupling in the form of a vacuum Rabi splitting between the atoms and the cavity on the 7.5 kHz transition $^1{\rm S}_0$ to $^3{\rm P}_1$. The atoms are loaded into the cavity from a 3D narrow linewidth molasses, thus avoiding large magnetic field gradients and associated broadening of transition frequencies. The ring cavity allows us to realize a deterministic conveyor belt to transport atoms away from the loading region where the laser cooling beams lead to broadening of the strontium clock transition. We trap up to $10^6$ atoms in an intracavity 813 nm lattice in the Lamb-Dicke regime, and transport the atoms along the cavity axis. This work opens the path to the creation of a continuous wave superradiant laser with millihertz linewidth enabling searches for new physics and the use of high-precision optical frequency references outside of low vibration laboratory environments.
