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Q: Fachverband Quantenoptik und Photonik
Q 54: Posters: Quantum Optics and Photonics IV
Q 54.53: Poster
Donnerstag, 12. März 2020, 16:30–18:30, Empore Lichthof
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 trap design is optimized for the implementation of the Mølmer Sørensen gate [4] for quantum repeater applications. The fiber cavity is incorporated into the center electrodes of the trap and mounted inside intrinsically stable ferrules. Additionally, micro-structured multimode fibers are fitted for efficient photon collection. A prototype of the trap is presented along with simulation results of the trap potential. In addition, we show results of the cavity transmission and its stability, as well as microscope images of the micro-structured multimode fibers and their analysis.
[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)
[4] K. Mølmer and A. Sørensen, Phys. Rev. Lett 82, 1835-8 (1999)