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MO: Fachverband Molekülphysik

MO 2: Ultra-cold atoms and molecules I (joint session A/MO/Q)

MO 2.2: Talk

Monday, March 11, 2019, 10:45–11:00, S HS 1 Physik

State-to-state chemistry in a magnetic field — •Joschka Wolf, Markus Deiß, Shinsuke Haze, and Johannes Hecker Denschlag — Institut für Quantenmaterie and Center for Integrated Quantum Science and Technology IQ^ST, Universität Ulm, 89069 Ulm, Germany

State-to-state chemistry describes the determination of the quantum states of the final products given the quantum state of reactants. We have developed and demonstrated a method to probe diatomic molecular product states of reactive processes both qualitatively and quantitatively [1]. Using the given method, we have investigated the recombination of three neutral rubidium atoms in an ultracold atomic gas. We have extended the scheme of [1], to also resolve the magnetic quantum number of molecular product states. In this talk, we present the measurements of product molecules for different reactant states as a function of the magnetic field. We find a propensity rule that the magnetic quantum number of the two reactants forming the molecule is conserved.

J. Wolf et al., Science 358, 921 (2017)