@article { WOS:000665117900005,
title = {Universal stereodynamics of cold atom-molecule collisions in electric fields},
journal = {Phys. Rev. A},
volume = {103},
number = {6},
year = {2021},
month = {JUN 23},
publisher = {AMER PHYSICAL SOC},
type = {Article},
abstract = {We use numerically exact quantum dynamics calculations to demonstrate universal stereoselectivity of cold collisions of (2)Pi molecules with S-1-state atoms in an external electric field. We show that cold collisions of OH molecules in their low-field-seeking f-states, whose dipole moments are oriented against the field direction, are much more likely to lead to inelastic scattering than those of molecules oriented along the field direction, causing nearly perfect steric asymmetry in the inelastic collision cross sections. The universal nature of this effect is due to the threshold suppression of inelastic scattering between the degenerate +/- M Stark sublevels of the high-field-seeking e-state, where M is the projection of the total angular momentum of the molecule on the field axis. Above the Lambda-doublet threshold, the stereodynamics of inelastic atom-molecule collisions can be tuned via electric-field-induced resonances, which enable effective control of Ne + OH scattering over the range of collision energies achievable in current merged beam experiments.},
issn = {2469-9926},
doi = {10.1103/PhysRevA.103.062810},
author = {Tscherbul, V, Timur and Klos, Jacek}
}
@article {morita_full-dimensional_2020,
title = {Full-dimensional quantum scattering calculations on ultracold atom-molecule collisions in magnetic fields: {The} role of molecular vibrations},
journal = {Phys. Rev. Res.},
volume = {2},
number = {4},
year = {2020},
note = {Place: ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA Publisher: AMER PHYSICAL SOC Type: Article},
abstract = {{Rigorous quantum scattering calculations on ultracold molecular collisions in external fields present an outstanding computational problem due to strongly anisotropic atom-molecule interactions that depend on the relative orientation of the collision partners, as well as on their vibrational degrees of freedom. Here, we present the first numerically exact three-dimensional quantum scattering calculations on strongly anisotropic atom-molecule (Li + CaH) collisions in an external magnetic field based on the parity-adapted total angular momentum representation and a new three-dimensional potential energy surface for the triplet Li-CaH collision complex developed using the unrestricted coupled-cluster method with single, double, and perturbative triple excitations and a large quadruple-zeta-type basis set. We find that while the full three-dimensional treatment is necessary for the accurate description of cold Li(M-S = 1/2) + CaH(v = 0},
doi = {10.1103/PhysRevResearch.2.043294},
author = {Morita, Masato and Klos, Jacek and Tscherbul, V, Timur}
}