Magnetic quantum number resolved state-to-state chemistry

Abstract

We extend state-to-state chemistry to a realm where besides vibrational, rotational and hyperfine quantum states magnetic quantum numbers are also resolved. For this, we make use of the Zeeman effect which energetically splits levels of different magnetic quantum numbers. The chemical reaction which we choose to study is three-body recombination in an ultracold quantum gas of ${}^{87}$Rb atoms forming weakly-bound Rb${}_2$ molecules. Here, we find the propensity rule that the total $m_F$ quantum number of the two atoms forming the molecule is conserved. Our method can be employed for many other reactions and inelastic collisions and will allow for novel insights into few-body processes.

arXiv comment5 pages, 4 figures

References in corpus (14)

• Feshbach Resonances in Ultracold Gases
• Cold and Ultracold Molecules: Science, Technology, and Applications
• Cold molecules: Progress in Quantum Engineering of Chemistry and Quantum Matter
• Controlling the quantum stereodynamics of ultracold bimolecular reactions
• Quo vadis, cold molecules? - Editorial review
• Efimov Resonances in Ultracold Quantum Gases
• Hyperfine, rotational, and vibrational structure of the triplet ground state of Rb molecules
• Characterization of elastic scattering near a Feshbach resonance in rubidium 87
• Magnetically Controlled Exchange Process in an Ultracold Atom-Dimer Mixture
• Controlled state-to-state atom-exchange reaction in an ultracold atom-dimer mixture
• Reaction kinetics of ultracold molecule-molecule collisions
• Minimization of ion micromotion using ultracold atomic probes
• Mixing of 0${}^{+}$ and 0${}^{-}$ observed in hyperfine and Zeeman structure of ultracold Rb${}_2$ molecules
• Control of Ultracold Photodissociation with Magnetic Fields

Cited by in corpus (9)

• Three-body recombination in physical chemistry
• The multichannel nature of three-body recombination for ultracold ${}^{39}$K
• Spin-conservation propensity rule for three-body recombination of ultracold Rb atoms
• Strong spin-exchange recombination of three weakly interacting ${}^7$Li atoms
• Energy-scaling of the product state distribution for three-body recombination of ultracold atoms
• Three-body spin mixing in spin-1 Bose-Einstein condensates
• Spin hierarchy in van der Waals molecule formation via ultracold three-body recombination
• Spin structure of diatomic van der Waals molecules of alkali atoms
• Isotope study of the nonlinear pressure shifts of ${}^{85}$Rb and ${}^{87}$Rb hyperfine resonances in Ar, Kr, and Xe buffer gases