High-resolution collision energy control through ion position modulation in atom-ion hybrid systems

Abstract

We demonstrate an ion shuttling technique for high-resolution control of atom-ion collision energy by translating an ion held within a radio-frequency trap through a magneto-optical atom trap. The technique is demonstrated both experimentally and through numerical simulations, with the experimental results indicating control of ion kinetic energies from $0.05-1$ K with a fractional resolution of $\sim 10$ and the simulations demonstrating that kinetic energy control up to $120$ K with a maximum predicted resolution of $\sim 100$ is possible, offering order-of-magnitude improvements over most alternative techniques. Lastly, we perform a proof-of-principle chemistry experiment using this technique and outline how the method may be refined in the future and applied to the study of molecular ion chemistry.

arXiv comment12 pages, 6 figures

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Cited by in corpus (7)

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• Reaction blockading in charged-neutral excited-state chemistry at low collision energy
• A hybrid ion-atom trap with integrated high resolution mass spectrometer
• Engineering excited-state interactions at ultracold temperatures
• High-energy-resolution measurement of ultracold atom-ion collisional cross section
• Rotational state-changing collisions between N${}_2^{+}$ and Rb at low energies
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