Rostock 2019 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 41: Poster: Quantum Optics and Photonics II
Q 41.6: Poster
Mittwoch, 13. März 2019, 16:15–18:15, S Fobau Physik
Towards a cryogenic surface-electrode ion trap apparatus for high-fidelty microwave quantum simulation — •Sebastian Grondkowski1, Timko Dubielzig1, Giorgio Zarantonello2, Henning Hahn2, Amado Bautista-Salvador2, and Christian Ospelkaus1,2 — 1Institut für Quantenoptik, Leibniz Universtiät Hannover, Welfengarten 1, 30167 Hannover, Germany — 2Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany
We report on the progress made in setting up a cryogenic surface-electrode ion trap with integrated microwave conductors for near-field quantum control of 9Be+. These traps are promising systems for analog quantum simulators and for quantum logic applications. Our group developed a trap with an integrated meander-like microwave guide for driving motional sidebands on a 9Be+ ion [1]. To suppress electrical field noise, acting on the ion and originating from thermal effects [2], the trap will be operated in a cryogenic vacuum chamber. We will discuss the vibration isolated closed cycle cryostat and the design of the vacuum chamber with all electrical supplies necessary to apply two different microwave currents, DC- and RF-voltages. We will also discuss magnetic-field coils producing a magnetic field at 22.3 mT and the resulting field-independent hyperfine qubit. Furthermore we will present the cryogenic, high aperture and fully acromatic imaging system.
[1] Applied Physics B - 10.1007/s00340-013-5689-6 (2013)
[2] J. Chiaverini and J. M. Sage, PRA 89, 012318 (2014)