Freiburg 2024 – scientific programme

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A: Fachverband Atomphysik

A 33: Poster VI

A 33.25: Poster

Thursday, March 14, 2024, 17:00–19:00, Tent A

Progress towards a novel apparatus for unit testing of ion trap prototypes and development of ion transport protocols — •Ludwig Krinner^{1, 2}, Christian Joohs^{1, 2}, Tobias Pootz¹, Emma Vandrey¹, Nila Krishnakumar², and Friederike Giebel² — ¹Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover — ²Physikalisch Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig

We report on progress towards an apparatus for testing and characterization of an in-house fabricated surface-electrode ion-trap chip [1], for realization of the QCCD-architecture [2, 3]. The apparatus will mount the combination of trap-chip and chip-interposer on a socket made from PEEK and copper, which also house various ablation-targets for loading beryllium, calcium and strontium. The apparatus has an integrated system for in-situ surface cleaning using argon ions [4], to enable low heating rates.

We will present the current status of the the setup, specifically the characterization of imaging optics, progress on the beam-delivery setup as well as a realization of transport waveforms to be tested on the trap chip currently in micro-fabrication.

[1] A. Bautista-Salvador et al., N. J. Phys., Vol. 21, 043011 (2019)

[2] D.J. Wineland et al., J. Res. Natl. Inst. Stand. Technol. 103, 259 (1998)

[3] D. Kielpinski, C. Monroe, and D. J. Wineland, Nature 417, 709 (2002)

[4] D. A. Hite et al., Phys. Rev. Lett., Vol. 109, 103001 (2012)

Keywords: Quantum computing; Surface electrode ion traps; Quantum technologies