Molecular assembly of ground state cooled single atoms
Abstract
We demonstrate full quantum state control of two species of single atoms using optical tweezers and assemble the atoms into a molecule. Our demonstration includes 3D ground-state cooling of a single atom (Cs) in an optical tweezer, transport by several microns with minimal heating, and merging with a single Na atom. Subsequently, both atoms occupy the simultaneous motional ground state with 61(4)\% probability. This realizes a sample of exactly two co-trapped atoms near the phase-space-density limit of one, and allows for efficient stimulated-Raman transfer of a pair of atoms into a molecular bound state of the triplet electronic ground potential . The results are key steps toward coherent creation of single ultracold molecules, for future exploration of quantum simulation and quantum information processing.
Keywords
Cite
@article{arxiv.1902.03935,
title = {Molecular assembly of ground state cooled single atoms},
author = {Lee R. Liu and Jonathan D. Hood and Yichao Yu and Jessie T. Zhang and Kenneth Wang and Yen-Wei Lin and Till Rosenband and Kang-Kuen Ni},
journal= {arXiv preprint arXiv:1902.03935},
year = {2019}
}