论文标题
冷分子碰撞中重叠共振的立体动力学控制
Stereodynamic control of overlapping resonances in cold molecular collisions
论文作者
论文摘要
谐振分子碰撞的立体动力控制已成为冷分子研究的新领域。最近的实验研究集中在弱相互作用的分子系统上，例如H $ _2 $，D $ _2 $和HE的HD碰撞。我们在这里报告了在强烈相互作用的系统中进行这种控制的可能性，在HCL和H $ _2 $的冷碰撞中进行旋转放松。使用明确的量子散射计算在整个六个维度中，即使在狭窄的能量范围内的多个（重叠）形状共振时，对碰撞动力学的稳健控制也是可能的，这表明冷立体化学对除简单系统以外的许多分子提供了很大的希望。我们证明了一个惊人的案例，即通过合适的HCl分子对齐，同时关闭重叠共振的两个突出峰。
Stereodynamic control of resonant molecular collisions has emerged as a new frontier in cold molecule research. Recent experimental studies have focused on weakly interacting molecular systems such as HD collisions with H$_2$, D$_2$ and He. We report here the possibility of such control in strongly interacting systems taking rotational relaxation in cold collisions of HCl and H$_2$. Using explicit quantum scattering calculations in full six dimensions it is shown that robust control of the collision dynamics is possible even when multiple (overlapping) shape-resonances coexist in a narrow energy range, indicating that cold stereochemistry offers great promise for many molecules beyond simple systems. We demonstrate a striking case where two prominent peaks in overlapping resonances are switched-off simultaneously by suitable alignment of the HCl molecule.
