论文标题
在分子磁光陷阱中工程化亚四倍体力
Engineering the sub-Doppler force in molecular magneto-optical traps
论文作者
论文摘要
超电位分子的当前双频磁磁陷阱受到子多普勒加热效应的困扰，使其远低于标准的原子MOT。在这里，我们从理论上证明了这种MOT中的子多普勒效应可以设计以提供冷却而不是加热。我们给出了一个直观的图片，如何实现这种冷却并显示CAF分子的16级光学Bloch方程的冷却和捕获力结果。从三维蒙特卡洛模拟中，我们估计MOT的温度和密度为$40μk$和$ 4 \ times 10^8 cm^{ - 3} $，分子数为$ 10^5 $。
Current dual-frequency magneto-optical traps for ultracold molecules are plagued by sub-Doppler heating effects, making them vastly inferior to standard atomic MOTs. Here we demonstrate theoretically that the sub-Doppler effects in such a MOT can be engineered to provide cooling instead of heating. We give an intuitive picture how to achieve such cooling and show the cooling and trapping force results of the 16 level optical Bloch equations for the case of CaF molecules. From three-dimensional Monte Carlo simulations we estimate the temperature and density of our MOT to be $40 μK$ and $4 \times 10^8 cm^{-3}$ respectively for a molecule number of $10^5$.
