Rotational state changes in collisions of diatomic molecular ions with atomic ions

Autor:	Berglund, J. Martin, Drewsen, Michael, Koch, Christiane P.
Rok vydání:	2019
Předmět:	Quantum Physics Physics - Atomic Physics
Druh dokumentu:	Working Paper
Popis:	We investigate rotational state changes in a single collision of diatomic molecular ions, both polar and apolar, with an atomic ion. These may occur when sympathetically cooling trapped molecular ions by co-trapped laser-cooled atomic ions, since the electric field due to the atom may excite molecular rotations. Thanks to the different time and energy scales of translational and rotational motion, we may treat the collision classically and describe rotations quantum mechanically. Based on numerical calculations for a number of examples, we derive closed-form estimates for the rotational excitation per collision, depending on the scattering energy and the molecular parameters. Comment: significantly expanded revision
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1905.02130 Zobrazit plný text záznamu View this record from Arxiv