Erlangen 2018 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 33: Poster Session II
A 33.22: Poster
Mittwoch, 7. März 2018, 16:15–18:15, Redoutensaal
A cryogenic Paul trap experiment for long-time storage of highly-charged ions — •Julian Stark1, Peter Micke1,2, Lisa Schmöger3, Janko Nauta1, Steffen Kühn1, Lukas Spiess1, Tobias Leopold2, Steven King2, Piet O. Schmidt2, and José R. Crespo López-Urrutia1 — 1Max-Planck-Institut für Kernphysik, Heidelberg, Germany — 2Physikalisch-Technische Bundesanstalt, Braunschweig, Germany — 3Institut für Experimentalphysik ,Universität Innsbruck, Austria
Forbidden transitions in highly charged ions (HCIs) are particularly interesting candidates for novel optical frequency standards and searches for physics beyond the Standard Model, such as possible drifts in the value of the fine structure constant α. For the purpose of these high precision experiments the HCIs are sympathetically cooled by simultaneously trapped Be+ ions in a cryogenic linear radio-frequency Paul trap [1,2,3]. We present the design of a cryogenic Paul trap setup which is based on CryPTEx [1] but focusses on long storage times of HCIs at extremely stable trapping conditions by isolating mechanical vibrations. Furthermore, a novel superconducting Paul trap resonator will enable precise localization of HCIs in low-noise trapping potentials which is needed for high precision laser spectroscopy.
[1] M. Schwarz et al., Rev. Sci. Instrum. 83, 083115 (2012)
[2] L. Schmöger et al., Rev. Sci. Instrum. 86, 103111 (2015)
[3] L. Schmöger et al., Science 347, 6227 (2015)