Bonn 2025 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 64: Poster – Precision Spectroscopy of Atoms and Ions (joint session A/Q)
Q 64.9: Poster
Donnerstag, 13. März 2025, 17:00–19:00, Tent
Addressed excitation and coherent manipulation of Rydberg states in a linear ion string — •Robin Thomm, Harry Parke, Natalia Kuk, Marion Mallweger, Vinay Shankar, Ivo Straka, and Markus Hennrich — Department of Physics, Stockholm University, Sweden
Rydberg excitation of trapped ions is a novel and promising approach for quantum sensing, simulation, and computation. Building on our previous demonstrations of coherent single-ion Rydberg excitation (Higgins et al. PRL 119, 220501 (2017)), zero-polarizability states (Pokorny et al. arXiv:2005.12422 (2020)) and a two-qubit gate (Zhang et al. Nature 580, 345-349 (2020)), we report recent progress toward integrating these achievements for addressed Rydberg excitation in linear ion strings. Key advancements include electromagnetically induced transparency (EIT) cooling of 88Sr+ ions, the implementation and characterization of single-ion addressing for the two-photon Rydberg excitation lasers, and the dressing of different Rydberg states via microwave radiation. Additionally, I will present first experimental results on coherent manipulation of Rydberg states with microwaves and the realization of a two-qubit gate in a linear ion string.
Keywords: Rydberg ions; quantum simulation; quantum computation; EIT cooling; Rydberg spectroscopy