论文标题
具有EIT三脚架方案的大型捕获链的有效地面态冷却
Efficient ground-state cooling of large trapped-ion chains with an EIT tripod scheme
论文作者
论文摘要
我们将电磁诱导的透明度（EIT）报告给量子基态的大型$^{171} $ yb $^+$ ion链的冷却。与常规的EIT冷却不同，我们参与了四级三脚架结构，并在所有运动模式下实现快速的子多普勒冷却。我们观察到在最高40美元的完全横向模式频谱上同时进行地面冷却，占据了$ 3 $ MHz的带宽。观察到冷却时间小于$ 300 \，μ$ S，与离子数无关。在整个光谱中的这种有效冷却对于使用量子模拟器或量子计算机的捕获的离子晶体进行高保真量子操作至关重要。
We report the electromagnetically-induced-transparency (EIT) cooling of a large trapped $^{171}$Yb$^+$ ion chain to the quantum ground state. Unlike conventional EIT cooling, we engage a four-level tripod structure and achieve fast sub-Doppler cooling over all motional modes. We observe simultaneous ground-state cooling across the complete transverse mode spectrum of up to $40$ ions, occupying a bandwidth of over $3$ MHz. The cooling time is observed to be less than $300\,μ$s, independent of the number of ions. Such efficient cooling across the entire spectrum is essential for high-fidelity quantum operations using trapped ion crystals for quantum simulators or quantum computers.
