English

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

Atomic Physics 2022-10-05 v2 Quantum Gases

Abstract

We prepare mixtures of ultracold 39^{39}K atoms in various hyperfine spin states and 23^{23}Na39^{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 γ\gamma of particles in a single collisional event.

Keywords

Cite

@article{arxiv.2109.03605,
  title  = {Hyperfine dependent atom-molecule loss analyzed by the analytic solution of few-body loss equations},
  author = {Kai K. Voges and Philipp Gersema and Torsten Hartmann and Silke Ospelkaus and Alessandro Zenesini},
  journal= {arXiv preprint arXiv:2109.03605},
  year   = {2022}
}