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arXiv · 1801.09277

Experimental demonstration of shaken lattice interferometry

C. A. Weidner·Dana Z. Anderson
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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 beamsplitter 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 [1]. Finally, we show that we can measure the sign of an applied signal and optimize the interferometer in the presence of a bias signal. [1] C. A. Weidner, H. Yu, R. Kosloff, and D. Z. Anderson, Phys. Rev. A 95, 043624 (2017).

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C. A. Weidner, Dana Z. Anderson. 2018-01-28. Experimental demonstration of shaken lattice interferometry. https://doi.org/10.1103/physrevlett.120.263201

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