Rostock 2019 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 41: Poster: Quantum Optics and Photonics II

Q 41.16: Poster

Mittwoch, 13. März 2019, 16:15–18:15, S Fobau Physik

Advanced Positioning Control for Trapped Ions in Segmented Traps — •Oliver Torsten Gräb, Janine Hilger, Ferdinand Schmidt-Kaler, and Ulrich Poschinger — QUANTUM, Institut für Physik, Staudingerweg 7, 55129 Mainz

I will present recent work towards the automated and scalable generation of voltage ramps for the reconfiguration of trapped-ion registers in segmented ion traps. With large Coulomb crystals offering limited scalability for use in quantum computation experiments [1], segmented ion traps offer a solution to this problem by storage of small ion crystals and dynamical reconfiguration of the arrangement [2].

While previous work demonstrating different types of shuttling operations relied on custom voltage ramps [3], versatile operations on larger registers ultimately requires automated generation of such ramps. Our approach relies on quadratic programming yielding a set of predefined temporally varying potential wells based on the trap geometry and subject to relevant hardware constraints. The software framework created for this purpose is efficient and scalable, i.e. voltage ramp solutions are rapidly obtained and the computation time scales favorably with the trap and register sizes.

[1] Wineland, D. J., et al. J. Res. Natl. Inst. Stan. 103.3 (1998): 259.

[2] Palmero, M., et al. New. J. Phys. 17.9 (2015): 093031.

[3] Kaufmann, H., et al. New. J. Phys. 16.7 (2014): 073012.