arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1608.06648physics.atom-phquant-ph
收藏

LiRb的短程光缔合作用

Short-range Photoassociation of LiRb

David B. Blasing, Ian C. Stevenson, Jesús Pérez-Ríos, Daniel S. Elliott, Yong P. Chen

摘要:

我们已经观察到的短程光缔合的LiRb的两个最低振动态的$d\,^3Π$潜力。然后,这些$d\,^3Π$分子以每秒$\sim10^3$分子的生成速率自发地衰减到$a^3\,Σ^+$状态的振动能级。这是首次观察到许多这些$a\,^3Σ^+$水平。我们观察到交替的峰高的旋转光缔合光谱,这表明一个$p$ -波形状共振的散射状态。Franck-Condon重叠计算预测,与$d\,^3Π$的更高振动能级,特别是第六振动能级的光缔合应该以高达每秒$10^4$分子的速率填充$a\,^3Σ^+$状态的最低振动能级。这些结果鼓励进一步的工作来解释我们观察到的LiRb碰撞物理使用PEC。这项工作也激发了实验研究的短程光缔合到其他结合的分子,如$c\,^3Σ^+$或$b\,^3Π$,作为制备基态分子的前景。

英文摘要:

We have observed short-range photoassociation of LiRb to the two lowest vibrational states of the $d\,^3Π$ potential. These $d\,^3Π$ molecules then spontaneously decay to vibrational levels of the $a^3\,Σ^+$ state with generation rates of $\sim10^3$ molecules per second. This is the first observation of many of these $a\,^3Σ^+$ levels. We observe an alternation of the peak heights in the rotational photoassociation spectrum that suggests a $p$-wave shape resonance in the scattering state. Franck-Condon overlap calculations predict that photoassociation to higher vibrational levels of the $d\,^3Π$, in particular the sixth vibrational level, should populate the lowest vibrational level of the $a\,^3Σ^+$ state with a rate as high as $10^4$ molecules per second. These results encourage further work to explain our observed LiRb collisional physics using PECs. This work also motivates an experimental search for short-range photoassociation to other bound molecules, such as the $c\,^3Σ^+$ or $b\,^3Π$, as prospects for preparing ground-state molecules.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑