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

authored by
Kai K. Voges, Philipp Gersema, Torsten Hartmann, Alessandro Zenesini, Silke Ospelkaus-Schwarzer

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 loss that is 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.

Institute of Quantum Optics
Nanostructures Section
Publication date
Publication status
E-pub ahead of print
Electronic version(s)
https://doi.org/10.48550/arXiv.2109.03605 (Access: Open)