SAMOP 2023 – scientific programme

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A: Fachverband Atomphysik

A 20: Poster II

A 20.18: Poster

Wednesday, March 8, 2023, 16:30–19:00, Empore Lichthof

Deterministic transport of trapped ions across two-dimensional trap-array — •Deviprasath Palani, Florian Hasse, Apurba Das, Maharshi Pran Bora, Lucas Eisenhart, Tobias Spanke, Ulrich Warring, and Tobias Schaetz — Physikalisches Institut, Albert-Ludwigs-Universität, Freiburg, Deutschland

Radio-Frequency surface electrode traps are promising platforms for envisioning large-scale quantum systems with trapped ions to perform quantum simulations, metrology, and information processing. In our prototype setup, the trap chip is fabricated by Sandia National Laboratories. The generated three-dimensional potential landscape has 13 strongly confined sites for ion storage and intermittent weakly confined areas featuring transport channels. With the sites closer to the surface, forming an equilateral triangular array: local control of sites, 2D inter-site coupling, and floquet-engineered coupling via the motional degrees of freedom had been demonstrated [1-3]. We extend the methods to enable the deterministic redistribution of ions across the array via an ancilla site ∼13 µm above the array. Via Ramsey spectroscopy, we reveal that the ion transport doesn’t decrease the information stored within the electronic degrees of freedom. We discuss our efforts in addressing technical limitations [4] and the possibilities of three-dimensional coupling. [1] Mielenz, M. et al Nat. Commun. 7, 11839 (2016). [2] Hakelberg, F. et al. Phys. Rev. Lett. 123, 100504 (2019). [3] Kiefer, P. et al. Phys. Rev. Lett. 123, 213605 (2019). [4] Warring, U. et al. Adv. Quantum Technol. 1900137 (2020).