Feshbach resonances are the essential tool to control the interaction between atoms in
ultracold quantum gases. They have found numerous experimental applications, opening up …

This paper presents a review of the current state of the art in the research field of cold and
ultracold molecules. It serves as an introduction to the focus issue ofNew Journal of Physics …

Resonances in ultracold collisions involving heavy molecules are difficult to simulate
theoretically and have proven challenging to detect. Here we report the observation of …

We measure inelastic collisions between ultracold CaF molecules by combining two optical
tweezers, each containing a single molecule. We observe collisions between Σ 2 CaF …

We demonstrate the production of ultracold polar RbCs molecules in their vibronic ground
state, via photoassociation of laser-cooled atoms followed by a laser-stimulated state …

We have produced ultracold, polar R b C s* molecules via photoassociation in a laser-
cooled mixture of Rb and Cs atoms. Using a model of the R b C s* molecular interaction …

Compared to purely atomic collisions, ultracold collisions involving molecules have the
potential to support a much larger number of Fano-Feshbach resonances due to the huge …

Using resonance-enhanced two-photon ionization, we detect ultracold, metastable RbCs
molecules formed in their lowest triplet state a Σ+ 3 via photoassociation in a laser-cooled …

NH radicals are magnetically trapped and their Zeeman relaxation and energy transport
collision cross sections with helium are measured. Continuous buffer-gas loading of the trap …

We propose and analyze a technique that allows one to suppress inelastic collisions and
simultaneously enhance elastic interactions between cold polar molecules. The main idea is …