Collisions of rubidium Rydberg-state atoms with ammonia.
Collisions of rubidium Rydberg-state atoms with ammonia.
复制标题
铷里德伯态原子与氨的碰撞。
DOI：
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发表时间：
1986
期刊：
影响因子：
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通讯作者：
Fournier
中科院分区：
文献类型：
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作者：
Petitjean;Gounand;Fournier
在较宽的n值范围内（24 ≤ n ≤ 49），测量了Rb（ns）和Rb（nd）能级与NH_3碰撞的总减布居截面。的n-依赖的行为的横截面的分析表明，NH3反转可以产生一个非常有效的l-混合过程，通过准共振机制。这种行为出现定性良好描述的理论计算的基础上的脉冲近似（IA）。理论和实验之间的定量比较似乎很困难，但IA似乎应该提供合理的估计（因子为4以内），尽管从理论角度来看，它用于大偶极矩（NH3为1.47 D）是值得怀疑的。
Total depopulation cross sections of Rb(ns) and Rb(nd) levels by collisions with NH3 have been measured over a wide range of n values (24< or =n< or =49). The analysis of the n-dependent behavior of the cross sections reveals that NH3 inversion can produce a very efficient l-mixing process via a quasiresonant mechanism. This behavior appears qualitatively well described by theoretical calculations based on the impulse approximation (IA). A quantitative comparison between theory and experiment appears difficult, but it seems that the IA should provide reasonable estimates (within a factor of 4), though its use for large dipole moment (1.47 D for NH3) is questionable from a theoretical point of view.