Erlangen 2018 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 42: Poster Session IIIb
A 42.2: Poster
Donnerstag, 8. März 2018, 16:15–18:15, Zelt Ost
Preparing and controlling optically trapped Barium Ions for ultracold Atom-Ion Interactions — •Pascal Weckesser, Fabian Thielemann, Yannick Minet, Julian Schmidt, Leon Karpa, Markus Debatin, and Tobias Schaetz — Albert-Ludwigs-Universitaet Freiburg
The interplay of ultracold atoms and ions has recently gained interest in the atomic community [1], due to its wide applications in quantum chemistry [2] and quantum control [3]. In order to control the atom-ion interaction it is necessary to prepare the mixture at ultracold temperatures. Optical trapping of ions [4] provides a new pathway to achieve ultracold atom-ion mixtures, as it overcomes the intrinsic micromotion heating effects of a conventional Paul trap [5], currently limiting experiments to collision energies on the order of a few mK.
Here we present our novel experimental setup combining 138Ba+ ions and 6Li atoms. On this poster we focus on the Barium segment of the experiment. We demonstrate our new ion loading scheme, realised by laser ablation. Furthermore, first optical trapping attempts of the Barium ions in a visible dipole trap (532 nm) will be presented.
[1] A. Haerter et al., Cont. Phys., Vol. 55, issue 1, pages 33-45 (2014).
[2] R.Cote et al. Phys.Rev.Lett. 89.093001 (2002).
[3] Idziaszek et al., Physical Review A 76.3 (2007): 033409.
[4] A. Lambrecht et al., Nature Photonics 11.11 (2017): 704.
[5] M.Cetina et al., Phys.Rev.Lett. 109,253201 (2012)