Cold Beam of $^7$Li$^4$He Dimers
Atomic Physics
2024-05-24 v2
Abstract
We demonstrate an approach for producing a high flux beam of LiHe dimers by performing post-nozzle seeding of a lithium beam into a supersonic helium expansion. The molecular beam has a longitudinal temperature of 13(6) mK and a continuous flux on the order of dimers/s. Monte Carlo simulations of molecular formation based on ab-initio quantum scattering calculations are carried out and compared to the experimentally observed molecular flux. Extensions of this work could lead towards a more quantitative understanding of few-body collision processes of alkali and helium atoms.
Keywords
Cite
@article{arxiv.2402.16209,
title = {Cold Beam of $^7$Li$^4$He Dimers},
author = {Jeremy Glick and William Huntington and Daniel Heinzen},
journal= {arXiv preprint arXiv:2402.16209},
year = {2024}
}
Comments
Added a figure of the experimental apparatus, longitudinal fluorescence results, and simulation results including exchange collisions with helium dimers