Controlled doping of a bosonic quantum gas with single neutral atoms
Mayer D, Schmidt F, Adam D, Haupt S, Koch J, Lausch T, Nettersheim J, Bouton Q, Widera A (2019)
Publication Type: Journal article
Publication year: 2019
Journal
Book Volume: 52
Article Number: 015301
Journal Issue: 1
Abstract
We report on the experimental doping of a 87 Rubidium (Rb) Bose-Einstein condensate (BEC) with individual neutral 133 Cesium (Cs) atoms. We discuss the experimental tools and procedures to facilitate Cs-Rb interaction. First, we use degenerate Raman side-band cooling of the impurities to enhance the immersion efficiency for the impurity in the quantum gas. We identify the immersed fraction of Cs impurities from the thermalization of Cs atoms upon impinging on a BEC, where elastic collisions lead to a localization of Cs atoms in the Rb cloud. Second, further enhancement of the immersion probability is obtained by localizing the Cs atoms in a species-selective optical lattice and a subsequent transport into the Rb cloud. Here, impurity-BEC interaction is monitored by position and time-resolved three-body loss of Cs impurities immersed into the BEC. This combination of experimental methods allows for the controlled doping of a BEC with neutral impurity atoms, paving the way to impurity aided probing and coherent impurity-quantum bath interaction.
Involved external institutions
Germany (DE)How to cite
APA:
Mayer, D., Schmidt, F., Adam, D., Haupt, S., Koch, J., Lausch, T.,... Widera, A. (2019). Controlled doping of a bosonic quantum gas with single neutral atoms. Journal of Physics B-Atomic Molecular and Optical Physics, 52(1). https://dx.doi.org/10.1088/1361-6455/aaf357
MLA:
Mayer, Daniel, et al. "Controlled doping of a bosonic quantum gas with single neutral atoms." Journal of Physics B-Atomic Molecular and Optical Physics 52.1 (2019).
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