Heidelberg 2015 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 63: Poster: Precision Spectroscopy of Atoms and Ions (with A)
Q 63.2: Poster
Donnerstag, 26. März 2015, 17:00–19:00, C/Foyer
An ultra-stable cryogenic Paul Trap for Quantum Logic Spectroscopy of Highly Charged Ions — •Maria Schwarz1,2, Lisa Schmöger1,2, Peter Micke1,2, Tobias Leopold1, Joachim Ullrich1, José Ramon Crespo López-Urrutia2, and Piet Oliver Schmidt1,3 — 1Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg — 2QUEST Institute for Experimental Quantum Metrology, Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig — 3Institut für Quantenoptik, Leibniz Universität Hannover, 30167 Hannover
For the purpose of high precision frequency measurements on highly charged ions (HCI) an ultra-stable cryogenic Paul trap is currently being designed at the MPIK in collaboration with the PTB. The design of this trap is based on the cryogenic Paul trap experiment (CryPTEx), which in combination with the ion injection capability from an electron beam ion trap has been successfully used for the storage and sympathetic cooling of HCIs in a Coulomb crystal. Furthermore, the extremely low background pressure provides a long storage time for HCIs which is essential for precision. The next generation design focuses on the decoupling of the vibrations in order to obtain more stable trapping conditions. Two vibration damping stages are implemented between the cryostat and the trap chamber. A horizontal design of the cryogenic supply parts beneath the laser table guarantees an optimized access to the trap. Our final goal is the application of quantum logic spectroscopy, where a singly charged ion species is responsible for sympathetic cooling and state detection of the HCI.