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arXiv · 2109.03605

Hyperfine dependent atom-molecule loss analyzed by the analytic solution of few-body loss equations

Kai K. Voges·Philipp Gersema·Torsten Hartmann·Silke Ospelkaus·Alessandro Zenesini
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Abstract

We prepare mixtures of ultracold $^{39}$K atoms in various hyperfine spin states and $^{23}$Na$^{39}$K molecules in an optical dipole trap at a fixed magnetic field and study inelastic two-body atom-molecule collisions. We observe atom-molecule losses that are hyperfine dependent with a two-body loss rate far below the universal limit. We analyze the two-body loss dynamics based on the derivation of general and easy applicable analytic solutions for the differential equations describing the loss of an arbitrary number $\gamma$ of particles in a single collisional event.

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Kai K. Voges, Philipp Gersema, Torsten Hartmann, Silke Ospelkaus, Alessandro Zenesini. 2021-09-08. Hyperfine dependent atom-molecule loss analyzed by the analytic solution of few-body loss equations. https://doi.org/10.1103/physrevresearch.4.023184

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