Generation of rotational-ground-state 
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 ions in an ion trap using a resonance-enhanced threshold photoionization process

Zhang, Yong; Zhang, Qian-Yu; Bai, Wen-Li; Ao, Zhi-Yuan; Peng, Wencui; He, Sheng-Guo; Tong, Xin

doi:10.1103/physreva.107.043101

Phys. Rev. A

2023

DOI: 10.1103/physreva.107.043101

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Generation of rotational-ground-state HD+ ions in an ion trap using a resonance-enhanced threshold photoionization process

Yong Zhang

Qian-Yu Zhang

Wen-Li Bai

et al.

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Cited by 7 publications

References 59 publications

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Optimized Strategies for the Quantum‐State Preparation of Single Trapped Nitrogen Molecular Ions

Shlykov,

Roguski,

Willitsch

2023

Adv Quantum Tech

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This study examines optimized strategies for the preparation of single molecular ions in well‐defined rotational quantum states in an ion trap with the example of the molecular nitrogen ion N. It advances a two‐step approach consisting of an initial threshold‐photoionization stage that produces molecular ions with a high probability in the target state, followed by a measurement‐based state purification of the sample. For this purpose, a resonance‐enhanced threshold photoionization scheme for producing N in its rovibrational ground state proposed by Gardner et al. [Sci. Rep. 2019, 9, 506] is characterized. The molecular state is measured using a recently developed quantum‐non‐demolition state‐detection method, finding a total fidelity of 38±7% for producing ground‐state N under the present experimental conditions. By discarding ions from the trap not found to be in the target state, essentially state‐pure samples of single N ions can be generated for subsequent state‐specific experiments.

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Optimized Strategies for the Quantum‐State Preparation of Single Trapped Nitrogen Molecular Ions

Shlykov,

Roguski,

Willitsch

2023

Adv Quantum Tech

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Long term frequency stabilization and frequency drift suppression of the 313 nm laser

Bai,

Peng,

Zhang

et al. 2024

Chinese Journal of Physics

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Cold trapped molecular ions and hybrid platforms for ions and neutral particles

Deiß,

Willitsch,

Hecker Denschlag

2024

Nat. Phys.

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Generation of rotational-ground-state HD+ ions in an ion trap using a resonance-enhanced threshold photoionization process

Cited by 7 publications

References 59 publications

Optimized Strategies for the Quantum‐State Preparation of Single Trapped Nitrogen Molecular Ions

Optimized Strategies for the Quantum‐State Preparation of Single Trapped Nitrogen Molecular Ions

Long term frequency stabilization and frequency drift suppression of the 313 nm laser

Cold trapped molecular ions and hybrid platforms for ions and neutral particles

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