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A: Fachverband Atomphysik
A 22: Charged ions and their applications
A 22.2: Vortrag
Donnerstag, 17. März 2022, 11:00–11:15, A-H1
First storage of highly charged ions in an ultralow-noise superconducting radio-frequency ion trap — •Christian Warnecke1,2, Elwin A. Dijck1, Malte Wehrheim1, Julia Eff1, Alvaro Garmendia1, Andrea Graf1, Ruben Henninger1, Claudia Volk1, Morten Will1, Lakshmi Priya Kozhiparambil Sajith4, Kostas Georgiou3, Christopher Mayo3, Thomas Pfeifer1, and José Ramon Crespo López-Urrutria1 — 1Max-Planck-Institute for Nuclear Physics, Saupfercheckweg 1 69117 Heidelberg Germany — 2Heidelberg Graduate School for Physics, Im Neuenheimer Feld 226 69120 Heidelberg Germany — 3School of Physics and Astronomy, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK — 4Deutsches Elektronen-Synchrotron (DESY), Humbolt Universität zu Berlin
To provide an environment free of noise induced by external alternating electromagnetic fields, we developed a quasi-monolithic, superconducting quadrupole resonator combined with a Paul trap reaching a very high Q-factor up to 2×105 at the working frequency of about 34 MHz. Such a high quality factor filters the radio-frequency trap drive noise significantly. Thus, heating rates of the radial modes are reduced. The cavity is a promising step to increase coherence times for quantum logic spectroscopy experiments, which will lead the way to future spectroscopy measurements with highly charged ions (HCI) in the Lamb-Dicke regime. Recently, first HCI have been successfully retrapped and sympathetically cooled with a single Be+ ion. We present the recent developement of our setup and first characterizations.