Ultracold chemistry as a testbed for few-body physics

T Karman, M Tomza, J Pérez-Ríos - Nature Physics, 2024 - nature.com
Ultracold atoms, molecules and ions provide a unique playground to explore chemistry at
ultracold temperatures. In this Review, we discuss what makes these systems particularly …

Cold and ultracold molecules in the twenties

TP Softley - Proceedings of the Royal Society A, 2023 - royalsocietypublishing.org
A diversity of experimental techniques has been developed over the last 25 years to create
samples of molecular gases at temperatures close to the Absolute Zero—here we consider …

Ultracold sticky collisions: theoretical and experimental status

R Bause, A Christianen, A Schindewolf… - The Journal of …, 2023 - ACS Publications
Collisional complexes, which are formed as intermediate states in molecular collisions, are
typically short-lived and decay within picoseconds. However, in ultracold collisions involving …

Creation of an ultracold gas of triatomic molecules from an atom–diatomic molecule mixture

H Yang, J Cao, Z Su, J Rui, B Zhao, JW Pan - Science, 2022 - science.org
In recent years, there has been notable progress in the preparation and control of ultracold
gases of diatomic molecules. The next experimental challenge is the production of ultracold …

Preparation of a quantum degenerate mixture of molecules and atoms

J Cao, H Yang, Z Su, XY Wang, J Rui, B Zhao, JW Pan - Physical Review A, 2023 - APS
We report on the preparation of a quantum degenerate mixture of Na 23 K 40 molecules and
K 40 atoms. A deeply degenerate atomic mixture of Na 23 and K 40 atoms with a large …

Observation of photoassociation resonances in ultracold atom-molecule collisions

J Cao, BY Wang, H Yang, ZJ Fan, Z Su, J Rui, B Zhao… - Physical Review Letters, 2024 - APS
We report on the observation of photoassociation resonances in ultracold collisions between
Na 23 K 40 molecules and K 40 atoms. We perform photoassociation in a long-wavelength …

Magnetic Feshbach resonances in ultracold atom-molecule collisions

M Morita, MB Kosicki, PS Żuchowski, P Brumer… - Physical Review A, 2024 - APS
We report numerically exact quantum scattering calculations on magnetic Feshbach
resonances in ultracold, strongly anisotropic atom-molecule [Rb (S 2)+ SrF (2 Σ+)] collisions …

Long-range states and Feshbach resonances in collisions between ultracold alkali-metal diatomic molecules and atoms

MD Frye, JM Hutson - Physical Review Research, 2023 - APS
We consider the long-range states expected for complexes formed from an alkali-metal
diatomic molecule in a singlet state and an alkali-metal atom. We explore the structure of the …

Symmetry breaking in sticky collisions between ultracold molecules

MP Man, GC Groenenboom, T Karman - Physical Review Letters, 2022 - APS
Ultracold molecules undergo “sticky collisions” that result in loss even for chemically
nonreactive molecules. Sticking times can be enhanced by orders of magnitude by …

Globally Accurate Gaussian Process Potential Energy Surface and Quantum Dynamics Studies on the Li(2S) + Na2 → LiNa + Na Reaction at Low Collision Energies

Z Yang, H Chen, B Buren, M Chen - Molecules, 2023 - mdpi.com
The LiNa2 reactive system has recently received great attention in the experimental study of
ultracold chemical reactions, but the corresponding theoretical calculations have not been …