NH（单重态Delta）分子与Rb原子碰撞猝灭的理论研究：初步结果
Theoretical study of the quenching of NH (singlet Delta) molecules via collisions with Rb atoms: preliminary results
摘要：
研究了Rb（二重态S）+ NH（单重态Delta）→ Rb（二重态P二分之一）+ NH（基态三重态Sigma负）的猝灭反应。该反应可用于产生基态NH分子，用于超冷物理学的研究或用于其他目的，并且有趣的是，它涉及接近简并的初始和最终状态。预期这种接近简并性导致大的反应速率。我们研究这个系统使用从头计算量子化学计算和散射计算，其中包括自旋轨道效应，并发现反应速率是大的，事实上，接近量子力学么正性极限。我们讨论了这个系统的实验检查的前景。
英文摘要：
We examine the quenching reaction Rb (doublet S) + NH (singlet Delta) goes to Rb (doublet P one-half) + NH (ground triplet Sigma minus). This reaction may be utilized to produce ground state NH molecules for studies of ultracold physics or for other purposes, and is interesting in that it involves initial and final states that are nearly degenerate. This near degeneracy is expected to lead to a large reaction rate. We examine this system using ab initio quantum chemistry calculations and scattering calculations, which include spin-orbit effects, and find that the reaction rate is large and, in fact, approaches the quantum mechanical unitarity limit. We discuss the prospects for an experimental examination of this system.
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