Freiburg 2019 – wissenschaftliches Programm

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FM: Fall Meeting

FM 84: Poster: Quantum Networks

FM 84.12: Poster

Donnerstag, 26. September 2019, 16:30–18:30, Tents

Design and impelementation of a segmented ion trap with an integrated fiber cavity — •Omar Elshehy, Stephan Kucera, and Jürgen Eschner — Universität des Saarlandes, Experimentalphysik, Campus E2.6, 66123 Saarbrücken

Efficient atom-photon interfaces are a basic requirement for any quantum network [1,2]. The efficiency of such interfaces has been shown to increase significantly by the use of cavities [3]. We present a segmented ion trap design for 40Ca+ ions with an integrated fiber cavity. The fiber cavity is incorporated into the center electrodes of the trap, which protects the ion from charge accumulation on the fiber mirrors and shields the fibers from lasers. A simulation of the trapping potential shows its tunability for micro-motion compensation and ion-shuttling operations. Moreover, preliminary characterization measurements of coupling efficiency and finesse of the fiber cavity are presented.

[1] C. Kurz et al., Nat. Commun. 5, 5527 (2014)

[2] M. Bock et al., Nat. Commun. 9, 1998 (2018)

[3] T. G. Ballance et al., Phys. Rev. A 95, 033812 (2017)

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