Beyond Born-Oppenheimer approximation in ultracold atomic collisions
Atomic Physics
2020-04-01 v1 Quantum Gases
Abstract
We report on deviations beyond the Born-Oppenheimer approximation in the potassium inter-atomic potentials. Identifying three up-to-now unknown -wave Feshbach resonances, we significantly improve the understanding of the K inter-atomic potentials. Combining these observations with the most recent data on known inter- and intra-isotope Feshbach resonances, we show that Born-Oppenheimer corrections can be determined from atomic collisional properties alone and that significant differences between the homo- and heteronuclear case appear.
Cite
@article{arxiv.1912.07395,
title = {Beyond Born-Oppenheimer approximation in ultracold atomic collisions},
author = {Eberhard Tiemann and Philipp Gersema and Kai K. Voges and Torsten Hartmann and Alessandro Zenesini and Silke Ospelkaus},
journal= {arXiv preprint arXiv:1912.07395},
year = {2020}
}