A trapped atom interferometer with ultracold Sr atoms
Atomic Physics
2016-10-11 v1
Abstract
We report on a trapped atom interferometer based on Bragg diffraction and Bloch oscillations with alkaline-earth-metal atoms. We use a Ramsey-Bord\'e Bragg interferometer with Sr atoms combined with Bloch oscillations to extend the interferometer time. Thanks to a long coherence time for Bloch oscillations of Sr atoms, we observed interference up to 1 s evolution time in the lattice. A detailed study of decoherence sources during the Bloch phase is also presented. While still limited in sensitivity by lattice lifetime and beam inhomogeneity this result opens the way to high contrast trapped interferometers with extended interrogation time.
Cite
@article{arxiv.1609.06092,
title = {A trapped atom interferometer with ultracold Sr atoms},
author = {Xian Zhang and Ruben Pablo del Aguila and Tommaso Mazzoni and Nicola Poli and Guglielmo M. Tino},
journal= {arXiv preprint arXiv:1609.06092},
year = {2016}
}
Comments
9 pages, 8 figures, Accepted for publication in Phys. Rev. A