We propose a scheme to directly laser cool Rydberg atoms by laser cooling the residual ion core within the Rydberg-electron orbit. The scheme is detailed for alkaline-earth-metal Rydberg atoms, whose ions can be easily laser cooled. We demonstrate that a closed optical cooling cycle can be found despite the perturbations caused by the Rydberg electron and that this cycle can be driven over more than $100\mathrm{\mu }\mathrm{s}$ to achieve laser cooling. The cooling dynamics with and without the presence of magnetic fields are discussed in detail.

中文翻译：

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具有隔离核心跃迁的里德伯原子直接激光冷却

我们提出了一种通过激光冷却里德伯电子轨道内残留离子核心来直接激光冷却里德伯原子的方案。该方案详细介绍了碱土金属里德堡原子，其离子可以很容易地被激光冷却。我们证明，尽管有里德堡电子引起的扰动，仍然可以找到封闭的光学冷却循环，并且该循环可以驱动超过$100\mathrm{\mu }\mathrm{s}$从而实现激光冷却。详细讨论了存在和不存在磁场的情况下的冷却动力学。