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arXiv · 1903.02965

Versatile control of $^9$Be$^+$ ions using a spectrally tailored UV frequency comb

A. -G. Paschke·G. Zarantonello·H. Hahn·T. Lang·C. Manzoni·M. Marangoni·G. Cerullo·U. Morgner·C. Ospelkaus
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Abstract

We demonstrate quantum control of $^9$Be$^+$ ions directly implemented by an optical frequency comb. Based on numerical simulations of the relevant processes in $^9$Be$^+$ for different magnetic field regimes, we demonstrate a wide applicability when controlling the comb's spectral properties. We introduce a novel technique for the selective and efficient generation of a spectrally tailored narrow-bandwidth optical frequency comb near 313 nm. We experimentally demonstrate internal state control and internal-motional state coupling of $^9$Be$^+$ ions implemented by stimulated-Raman manipulation using a spectrally optimized optical frequency comb. Our pulsed laser approach is a key enabling step for the implementation of quantum logic and quantum information experiments in Penning traps.

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A. -G. Paschke, G. Zarantonello, H. Hahn, T. Lang, C. Manzoni, M. Marangoni, G. Cerullo, U. Morgner, C. Ospelkaus. 2019-03-07. Versatile control of $^9$Be$^+$ ions using a spectrally tailored UV frequency comb. https://doi.org/10.1103/physrevlett.122.123606

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