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

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.

References in corpus (10)

• A High Phase-Space-Density Gas of Polar Molecules
• Quantum liquid droplets in a mixture of Bose-Einstein condensates
• Ultracold dense samples of dipolar RbCs molecules in the rovibrational and hyperfine ground state
• Ultracold Dipolar Gas of Fermionic ${}^{23}$Na${}^{40}$K Molecules in their Absolute Ground State
• Creation of ultracold ${}^{87}$RbCs molecules in the rovibrational ground state
• Reactions of ultracold alkali metal dimers
• 39-K Bose-Einstein condensate with tunable interactions
• Collisions of ultracold molecules in bright and dark optical dipole traps
• Probing photoinduced two-body loss of ultracold non-reactive bosonic ${}^{23}$Na${}^{87}$Rb and ${}^{23}$Na${}^{39}$K molecules
• Magnetic Feshbach resonances in collisions of ${}^{23}$Na${}^{40}$K with ${}^{40}$K

Cited by in corpus (7)

• Ultracold Sticky Collisions: Theoretical and Experimental Status
• Complexes formed in collisions between ultracold alkali-metal diatomic molecules and atoms
• Ab initio calculation of the spectrum of Feshbach resonances in NaLi + Na collisions
• Ultracold Interactions between Ions and Polar Molecules
• Molecule-molecule and atom-molecule collisions with ultracold RbCs molecules
• Rigorous quantum calculations for atom-molecule chemical reactions in electric fields: from single to multiple partial wave regimes
• Optical formation of ultracold NaK${}_2$ ground state molecules