Experimental Demonstration of Shaken-Lattice Interferometry

Physical Review Letters
C A Weidner, Dana Z Anderson

Abstract

We experimentally demonstrate a shaken-lattice interferometer. Atoms are trapped in the ground Bloch state of a red-detuned optical lattice. Using a closed-loop optimization protocol based on the dcrab algorithm, we phase-modulate (shake) the lattice to transform the atom momentum state. In this way, we implement an atom beam splitter and build five interferometers of varying interrogation times T_{I}. The sensitivity of shaken-lattice interferometry is shown to scale as T_{I}^{2}, consistent with simulation (2C. A. Weidner, H. Yu, R. Kosloff, and D. Z. Anderson, Phys. Rev. A 95, 043624 (2017).PLRAAN2469-992610.1103/PhysRevA.95.043624). Finally, we show that we can measure the sign of an applied signal and optimize the interferometer in the presence of a bias signal.

References

Mar 24, 2005·Physical Review Letters·Ying-Ju WangSaijun Wu
Sep 10, 2013·Physical Review Letters·Susannah M DickersonMark A Kasevich
May 31, 2014·Nature Communications·S van FrankJ Schmiedmayer
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Dec 9, 2017·Physical Review Letters·Martin ReitterUlrich Schneider

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Citations

Nov 26, 2019·Physical Review Letters·Mengzhen ZhangLiang Jiang
Nov 11, 2018·Proceedings of the National Academy of Sciences of the United States of America·Robert HeckJacob F Sherson
Jul 3, 2020·The Review of Scientific Instruments·Hoon Yu, Jung Bog Kim

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