Light-assisted ion-neutral reactive processes in the cold regime: radiative molecule formation vs. charge exchange

Details Light-assisted ion-neutral reactive processes in the cold regime: radiative molecule formation vs. charge exchange Light-assisted ion-neutral reactive processes in the cold regime: radiative molecule formation vs. charge exchange

2011-08-18

arxiv.org/abs/1108.3739v2

Physics

Atomic Physics

5 pages, 4 figures

Scientific paper

We present a combined experimental and theoretical study of cold reactive collisions between laser-cooled Ca+ ions and Rb atoms in an ion-atom hybrid trap. We observe rich chemical dynamics which are interpreted in terms of non-adiabatic and radiative charge exchange as well as radiative molecule formation using high-level electronic structure calculations. We study the role of light-assisted processes and show that the efficiency of the dominant chemical pathways is considerably enhanced in excited reaction channels. Our results illustrate the importance of radiative and non-radiative processes for the cold chemistry occurring in ion-atom hybrid traps.

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