80hk Momentum Separation with Bloch Oscillations in an Optically Guided Atom Interferometer
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 rou...
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| Veröffentlicht in: | arXiv.org 2013-10 |
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| creator | McDonald, Gordon D Kuhn, Carlos C N Bennetts, Shayne Debs, John E Hardman, Kyle S Johnsson, Mattias Close, John D Robins, Nicholas P |
| description | 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. |
| doi_str_mv | 10.48550/arxiv.1307.0268 |
| format | Article |
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| source | Freely Accessible Journals; arXiv.org |
| subjects | Acceleration Curvature Gradiometers Magnetic measurement Momentum Optical waveguides Physics - Atomic Physics Physics - Quantum Gases Physics - Quantum Physics Sensitivity Separation Visibility |
| title | 80hk Momentum Separation with Bloch Oscillations in an Optically Guided Atom Interferometer |
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