Stereodynamical Control of a Quantum Scattering Resonance in Cold Molecular Collisions
Stereodynamical Control of a Quantum Scattering Resonance in Cold Molecular Collisions
复制标题
冷分子碰撞中量子散射共振的立体动力学控制
DOI：
10.1103/physrevlett.123.043401
复制
发表时间：
2019
影响因子：
8.6
通讯作者：
Aoiz, F. Javier
中科院分区：
文献类型：
--
作者：
Jambrina, Pablo G.;Croft, James F. E.;Guo, Hua;Brouard, Mark;Balakrishnan, Naduvalath;Aoiz, F. Javier
光分子的冷碰撞通常以单部分波共振为主。对于HD（,）与基态para碰撞的旋转猝灭过程，以0.1 K附近的单部分波共振为主。在这里，我们展示了这种共振可以简单地通过相对于初始速度矢量的HD旋转角动量的适当对齐来打开或关闭，从而能够完全控制碰撞结果。
Cold collisions of light molecules are often dominated by a single partial wave resonance. For the rotational quenching of HD (,) by collisions with ground statepara-, the process is dominated by a singlepartial wave resonance centered around 0.1 K. Here, we show that this resonance can be switched on or off simply by appropriate alignment of the HD rotational angular momentum relative to the initial velocity vector, thereby enabling complete control of the collision outcome.