Reaction interferometry with ultracold molecules.

We propose to coherently control the ultracold 2KRb → K + Rb reaction product state distribution quantum interference. By leveraging that the nuclear spin degrees of freedom in the reaction maintain coherence, which was demonstrated in Liu, Zhu , , 2023, arXiv:2310.07620, https://doi.

Quantum interference in atom-exchange reactions.

Chemical reactions, in which bonds break and form, are highly dynamic quantum processes. A fundamental question is whether coherence can be preserved in chemical reactions and then harnessed to generate entangled products. Here we investigated this question by studying the 2KRb [Formula: see text][Formula: see text] + Rb reaction at 500 nanokelvins, focusing on the nuclear spin degrees of freedom.