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

Autor:	Hall, Felix H. J., Aymar, Mireille, Bouloufa-Maafa, Nadia, Dulieu, Olivier, Willitsch, Stefan
Rok vydání:	2011
Předmět:	Physics - Atomic Physics Physics - Chemical Physics
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevLett.107.243202
Popis:	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. Comment: 5 pages, 4 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1108.3739 Zobrazit plný text záznamu View this record from Arxiv