Stereodynamic control of overlapping resonances in cold molecular collisions

Abstract

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.

arXiv comment5 pages, 4 figures, 31 references and Supplemental Material (5 pages, 5 figures)

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Cited by in corpus (8)

• Complete quantum coherent control of ultracold molecular collisions
• The role of low energy resonances in the stereodynamics of cold He+D2 collisions
• Stereodynamics of rotationally inelastic scattering in cold He+HD collisions
• Stereodynamical control of cold collisions between two aligned D2 molecules
• Stereodynamic control of cold rotationally inelastic CO + HD collisions
• On the use of stereodynamical effects to control cold chemical reactions: the H + D${}_2⟷$ D + HD case study
• Rainbow scattering in rotationally inelastic collisions of HCl and H${}_2$
• Universal stereodynamics of cold atom-molecule collisions in electric fields