Long-term trapping of Stark-decelerated molecules

Haas, Dominik and von Planta, Claudio and Kierspel, Thomas and Zhang, Dongdong and Willitsch, Stefan. (2019) Long-term trapping of Stark-decelerated molecules. Communications physics, 2. p. 101.

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Official URL: https://edoc.unibas.ch/74468/

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Trapped cold molecules represent attractive systems for precision-spectroscopic studies and for investigations of cold collisions and chemical reactions. However, achieving their confinement for sufficiently long timescales remains a challenge. Here, we report the long-term trapping of Stark-decelerated OH radicals in their X (2)Pi(3/2) (nu = 0, J = 3/2, M-J = 3/2, f) state in a permanent magnetic trap. The trap environment is cryogenically cooled to a temperature of 17 K to suppress black-body-radiation-induced pumping of the molecules out of trappable quantum states and collisions with residual background gas molecules which usually limit the trap lifetime. The cold molecules are thus confined on timescales approaching minutes, an improvement of up to two orders of magnitude compared with room temperature experiments, at translational temperatures of similar to 25 mK. The present results pave the way for new experiments using trapped cold molecules in precision spectroscopy, in studies of slow chemical processes at low energies and in the quantum technologies.
Faculties and Departments:05 Faculty of Science > Departement Chemie > Chemie > Chemische Physik (Willitsch)
UniBasel Contributors:Haas, Dominik and von Planta, Claudio and Kierspel, Thomas and Zhang, Dongdong and Willitsch, Stefan
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Nature Publishing Group
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:04 Feb 2020 11:39
Deposited On:04 Feb 2020 11:39

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