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Q: Fachverband Quantenoptik und Photonik
Q 21: Ultracold Atoms and Plasmas (joint session Q/A)
Q 21.13: Poster
Tuesday, March 15, 2022, 16:30–18:30, P
Autler-Townes spectroscopy of Rydberg ions in coherent motion — •Alexander Schulze-Makuch1, Jonas Vogel1, Marie Niederländer1, Bastien Gely1,2, Arezoo Mokhberi1, and Ferdinand Schmidt-Kaler1,3 — 1QUANTUM, Institut für Physik, Universität Mainz, D-55128 Mainz, Germany — 2ENS Paris-Saclay, 91190 Gif-sur-Yvette, France — 3Helmholtz-Institut Mainz, D-55128 Mainz, Germany
The exaggerated polarizability of Rydberg atoms and ions has led to significant interest in the cold atom and ion community. Due to their enhanced electric field sensitivity, electric kicks on a Rydberg ion result in large state dependent forces which can be used to generate entanglement in a multi-ion crystal in the sub-µs timescale [1]. We use electric kicks to excite a Rydberg ion into a coherent motional state. Observing now the Stark shift in the Rydberg spectrum allows for the determination of the state polarizability. By microwave-coupling Rydberg nS and mP states, with opposite sign of polarizability, we aim for dressing the state and engineering the polarizability. We present Autler-Townes spectroscopy measurements with a single trapped ion probing thermal and coherent motional excitations in the trapping fields, and eventually the engineering of the effective polarizability, important for gate operations [2].
[1] Vogel et al., Phys. Rev. Lett. 123, 153603 (2019) [2] Zhang et al., Nature 580, 7803 (2020)