Reactive collisions in confined geometries
Abstract
We consider low energy threshold reactive collisions of particles interacting via a van der Waals potential at long range in the presence of external confinement and give analytic formulas for the confinement modified scattering in such circumstances. The reaction process is described in terms of the short range reaction probability. Quantum defect theory is used to express elastic and inelastic or reaction collision rates analytically in terms of two dimensionless parameters representing phase and reactivity. We discuss the modifications to Wigner threshold laws for quasi-one-dimensional and quasi-two-dimensional geometries. Confinement-induced resonances are suppressed due to reactions and are completely absent in the universal limit where the short-range loss probability approaches unity.
Cite
@article{arxiv.1412.2501,
title = {Reactive collisions in confined geometries},
author = {Zbigniew Idziaszek and Krzysztof Jachymski and Paul S. Julienne},
journal= {arXiv preprint arXiv:1412.2501},
year = {2015}
}
Comments
prepared as a contribution to New Journ. Phys. special issue on cold molecules; v2: minor improvements