Berlin 2014 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 16: Poster: Quantum information, micromechanical oscillators, matter wave optics, precision measurements and metrology

Q 16.42: Poster

Montag, 17. März 2014, 16:30–18:30, Spree-Palais

Addressing of individual ions with RF radiation in a planar electrode ion trap with integrated current carrying electrodes — Peter Kunert, •Ivan Boldin, Daniel Georgen, Michael Johanning, and Christof Wunderlich — University of Siegen, Siegen, Germany

We present a planar electrode ion trap that is designed as a prototype of a future quantum processor with microwave control over the qubits using the magnetic gradient induced coupling (MAGIC) scheme. The electrodes of the trap can carry DC currents that create a spatally varying magnetic field in the region of ion trapping: This is used for addressing trapped ions in frequency space and to couple internal and motional degrees of freedom via MAGIC.

The planar trap is shown to be functional and trapping times of several hours are achieved for individual Yb+ ions. Up to 12 ions have been be trapped with storage times on the order of minutes. The magnetic field in the trapping region is mapped using radio frequency-optical double resonance spectroscopy. In addition, we apply and characterize a magnetic gradient and demonstrate individual addressing, that is, selective excitation on a Zeeman transition of the D3/2 state, in a string of three ions using RF radiation.