Hannover 2020 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 24: Quantum Information (Quantum Computing)
Q 24.7: Vortrag
Mittwoch, 11. März 2020, 12:45–13:00, e001
Cryogenic surface-electrode ion trap apparatus for 9Be+-ions — •Timko Dubielzig1, Sebastian Halama1, Giorgio Zarantonello1,2, Henning Hahn1,2, Amado Bautista-Salvador2, and Christian Ospelkaus1,2 — 1Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover — 2Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig
We recently commisioned a cryogenic surface electrode ion trap with integrated microwave conductors for near-field quantum control of 9Be+. This trap has been operating since late November 2019 and we will present the first results. This system is a very promising environment for analog quantum simulators and for quantum logic applications. The trap is mounted to an ultra-low vibration interface, leading to a measured upper limit on vibrations caused by the cryocooler of 8 nm RMS. We operate the trap at a bias field of 223 G, where the transition between |F=2,mF=1> and |F=1,mF=1> is first-order field independent for long coherence times. Immediate perspectives for the experiment include the realization of a high-fidelity two-qubit gate, based on the recent advances in our room temperature setup, and 2D arrays of ion traps interacting via the remote Coulomb interaction as well as the implementation of effective magnetic interactions through integrated near-field microwave methods.