Speaker
Description
Rydberg-ion collisions present a strong long-range interaction that, in principle, translates into a significant charge-exchange cross section that scales quadratically with the size of the Rydberg orbit. This talk explores this reaction by identifying the different dynamical regimes regarding collision energy, finding that charge exchange and l-mixing collisions have complex behavior. In particular, the expected geometric scaling of the cross-section is only valid at high collision energies, whereas, in cold environments, we find significant deviations from it and that the core-electron interaction potential and core repulsion play an essential role. Our findings help to understand better the effects of Rydberg-ion long-range interaction in cold chemistry experiments.
