Freiburg 2024 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 37: Poster III
Q 37.37: Poster
Mittwoch, 13. März 2024, 17:00–19:00, Tent B
Quantum Computation with Neutral Alkaline-Earth-like Ytterbium Rydberg Atoms in Optical Tweezer Arrays — •Nejira Pintul1,2, Tobias Petersen1,2, Nicolas Heimann1,2, Lukas Broers1,2,3, Koen Sponselee1,2, Alexander Ilin1,2, Jonas Rauchfuß1,2, Oscar Murzewitz1,2, Clara Schellong1,2, Jan Deppe1,2, Christoph Becker1,2, Ludwig Mathey1,2,3, and Klaus Sengstock1,2,3 — 1Zentrum für optische Quantentechnologien, 22761 Hamburg — 2Institut für Quantenphysik, 22761 Hamburg — 3The Hamburg Centre for Ultrafast Imaging, 22761 Hamburg
Arrays of neutral atoms have evolved into a leading platform for quantum computation. Alkaline-earth-like atoms promise to overcome present limitations imposed on fault-tolerant quantum computation with its two valence electron structure and single-photon Rydberg transitions, enabling new error correction schemes [1], mid-circuit readout [2-4] and novel qubit architectures [5]. Here we present our experimental approach to building an ytterbium-based Rydberg tweezer experiment and report on the recent realization of uniform tweezer arrays as well as mobile traps for atom reconfiguration. We present a machine learning assisted two-qubit gate design [6] utilizing a hybrid-classical optimizer to construct fidelity-optimal pulse sequences for realizing CNOT gates, while assuming feasible experimental parameters. [1] Nat Commun 13, 4657 (2022) [2] Nature 622, 279284 (2023) [3] PRX Quantum 4, 030337 (2023) [4] Phys. Rev. X 13, 041035 (2023) [5] Phys. Rev. A 105, 052438 (2022) [6] arXiv 2306.08691
Keywords: quantum computation; optical tweezer arrays; alkaline-earth atoms; ytterbium; quantum gates