Molecular spectroscopy for ground-state transfer of ultracold RbCs molecules
Abstract
We perform one- and two-photon high resolution spectroscopy on ultracold samples of RbCs Feshbach molecules with the aim to identify a suitable route for efficient ground-state transfer in the quantum-gas regime to produce quantum gases of dipolar RbCs ground-state molecules. One-photon loss spectroscopy allows us to probe deeply bound rovibrational levels of the mixed excited (A1{\Sigma}+ - b3{\Pi}0) 0+ molecular states. Two-photon dark state spectroscopy connects the initial Feshbach state to the rovibronic ground state. We determine the binding energy of the lowest rovibrational level |v"=0,J"=0> of the X1{\Sigma}+ ground state to be DX 0 = 3811.5755(16) 1/cm, a 300-fold improvement in accuracy with respect to previous data. We are now in the position to perform stimulated two-photon Raman transfer to the rovibronic ground state.
Keywords
Cite
@article{arxiv.1106.0129,
title = {Molecular spectroscopy for ground-state transfer of ultracold RbCs molecules},
author = {Markus Debatin and Tetsu Takekoshi and Raffael Rameshan and Lukas Reichsöllner and Francesca Ferlaino and Rudolf Grimm and Romain Vexiau and Nadia Bouloufa and Olivier Dulieu and Hanns-Christoph Naegerl},
journal= {arXiv preprint arXiv:1106.0129},
year = {2017}
}
Comments
Submitted to PCCP themed issue: Physics and Chemistry of Cold Molecules