Berlin 2014 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 5: Quantum information: Atoms and ions I
Q 5.3: Talk
Monday, March 17, 2014, 11:15–11:30, UDL HS3038
Cryogenic surface-electrode ion trap apparatus — •Timko Dubielzig1, Matina Carsjens1,2, Matthias Kohnen2,1, Sebastian Grondkowski1, and Christian Ospelkaus1,2 — 1Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, Germany — 2Physikalisch Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany
In this talk we describe the infrastructure necessary to operate a surface-electrode ion trap with integrated microwave conductors for near-field quantum control of 9Be+ in a cryogenic environment. These traps are promising systems for analog quantum simulators and for quantum logic applications. Our group recently developed a trap with an integrated meander-like micowave guide for driving motional sidebands on an 9Be+ ion [1]. The trap will be operated in a cryogenic vacuum chamber. We will discuss the vibrational isolated closed cycle cryostat and the design of the vacuum chamber with all electrical supplies necessary to apply two different microwave currents, dc voltages and three independent rf supplies to generate a reconfigurable rf trapping potential. We will also discuss the used hyperfine qubit and the laser systems required to cool and repump. Furthermore we will present the cryogenic, high aperture and fully acromatic imaging system.
[1] Applied Physics B - 10.1007/s00340-013-5689-6 (2013)