Related papers: Observation of Chemical Reactions between a Trapped Ion and Ultracold Feshbach Dimers

Observation of Chemical Reactions between a Trapped Ion and Ultracold Feshbach Dimers

URL: http://arxiv.org/abs/2110.14475v2
Date: Wed, 6 Apr 2022 13:30:09 GMT
Title: Observation of Chemical Reactions between a Trapped Ion and Ultracold Feshbach Dimers
Authors: H. Hirzler, R.S. Lous, E. Trimby, J. P\'erez-R\'ios, A. Safavi-Naini and R. Gerritsma
Abstract summary: We measure chemical reactions between a single trapped $174$Yb$+$ ion immersed in an ultracold bath of $6$Li atoms. This produces LiYb$+$ molecular ions that we detect via mass spectrometry.
Score: 0.0
License: http://creativecommons.org/licenses/by-nc-nd/4.0/
Abstract: We measure chemical reactions between a single trapped $^{174}$Yb$^+$ ion immersed in an ultracold bath of $^6$Li atoms containing trace amounts of Li$_2$ dimers. This produces LiYb$^+$ molecular ions that we detect via mass spectrometry. We explain the reaction rates by modelling the dimer density as a function of the magnetic field and obtain excellent agreement when we assume the reaction to follow the Langevin rate. Our results present a novel approach towards the creation of cold molecular ions and point to the exploration of ultracold chemistry in ion molecule collisions. What is more, with a detection sensitivity below molecule densities of $10^{14}\,\mathrm{m}^{-3}$, we provide a new method to detect low-density molecular gases.

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