Sticking lifetime of ultracold CaF molecules in triplet interactions
Atomic Physics
2023-07-19 v1
Abstract
A six-dimensional potential energy surface is constructed for the spin-polarized triplet state of CaF-CaF by \textit{ab initio} calculations at the CCSD(T) level of theory, followed by Gaussian process interpolation. The potential is utilized to calculate the density of states for this bi alkaline-earth-halogen system where we find the value 0.038 K, implying a mean resonance spacing of 26 K in the collision complex. This value implies an associated Rice-Ramsperger-Kassel-Marcus lifetime of 18 s, thus predicting long-lived complexes in collisions at ultracold temperatures.
Keywords
Cite
@article{arxiv.2303.07611,
title = {Sticking lifetime of ultracold CaF molecules in triplet interactions},
author = {Dibyendu Sardar and John L. Bohn},
journal= {arXiv preprint arXiv:2303.07611},
year = {2023}
}