Mainz 2017 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 31: Poster Session III

A 31.26: Poster

Donnerstag, 9. März 2017, 17:00–19:00, P OG1

Towards a two-species Rydberg experiment for ion-atom scattering in the quantum regime — •Nicolas Zuber, Thomas Schmid, Christian Veit, Thomas Dieterle, Robert Löw, and Tilman Pfau — 5. Physikalische Institut & Center for Integrated Quantum Science and Technology, Universität Stuttgart, Stuttgart, Germany

We are building up an experiment for ultra cold mixtures of rubidium 87 and lithium 6 with the possibility for Rb Rydberg excitation. The setup will allow for the creation and study of heteronuclear Rb*-Li Rydberg molecules by photoassociation spectroscopy. This will enable us to study ion-atom scattering in the ultra cold quantum regime so far not reached by the hybrid ion-atom-trap experiments [1]. For this purpose the anisotropic F-state Rydberg molecules will be used for the alignment of the lithium atom with respect to the ionic Rb⁺ core. A two-photon ionization process provides an option for very fast ionization of the Rydberg molecule and thus the precise timing of the Rb⁺-Li scattering event. The detection of the scattered ion will be done with an ion microscope and a spatially and temporally resolving delay-line detector with a single particle rate up to several MHz.

[1] R. Saito et al, arXiv:1608.07043