Experimental Demonstration of Shaken-Lattice Interferometry

Author
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\ TI. The sensitivity of shaken-lattice interferometry is shown to scale as\ T2I, consistent with simulation (C. A. Weidner, H. Yu, R. Kosloff, and D. Z. Anderson,\ Phys. Rev. A\ 95, 043624 (2017).). Finally, we show that we can measure the sign of an applied signal and optimize the interferometer in the presence of a bias signal.
Year of Publication
2018
Journal
Phys. Rev. Lett.
Volume
120
Number of Pages
263201
Date Published
2018-06
URL
https://link.aps.org/doi/10.1103/PhysRevLett.120.263201
DOI
10.1103/PhysRevLett.120.263201
JILA PI
Associated Institutes
Journal Article