80hk Momentum Separation with Bloch Oscillations in an Optically Guided Atom Interferometer
Quantum Gases
2013-11-20 v2 Atomic Physics
Quantum Physics
Abstract
We demonstrate phase sensitivity in a horizontally guided, acceleration-sensitive atom interferometer with a momentum separation of 80hk between its arms. A fringe visibility of 7% is observed. Our coherent pulse sequence accelerates the cold cloud in an optical waveguide, an inherently scalable route to large momentum separation and high sensitivity. We maintain coherence at high momentum separation due to both the transverse confinement provided by the guide, and our use of optical delta-kick cooling on our cold-atom cloud. We also construct a horizontal interferometric gradiometer to measure the longitudinal curvature of our optical waveguide.
Keywords
Cite
@article{arxiv.1307.0268,
title = {80hk Momentum Separation with Bloch Oscillations in an Optically Guided Atom Interferometer},
author = {Gordon D. McDonald and Carlos C. N. Kuhn and Shayne Bennetts and John E. Debs and Kyle S. Hardman and Mattias Johnsson and John D. Close and Nicholas P. Robins},
journal= {arXiv preprint arXiv:1307.0268},
year = {2013}
}
Comments
6 pages, 6 figures