Article
Simplified landscapes for optimization of shaken lattice interferometry Public Deposited
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https://scholar.colorado.edu/concern/articles/8049g560t
- Abstract
- Motivated by recent results using shaken optical lattices to perform atom interferometry, we explore splitting of an atom cloud trapped in a phase-modulated ("shaken") optical lattice. Using a simple analytic model we are able to show that we can obtain the simplest case of $\pm2\hbar k_\mathrm{L}$ splitting via single-frequency shaking. This is confirmed both via simulation and experiment. Furthermore, we are able to split with a relative phase $\theta$ between the two split arms of $0$ or $\pi$ depending on our shaking frequency. Addressing higher-order splitting, we determine that $\pm6\hbar k_\mathrm{L}$ splitting is sufficient to be able to accelerate the atoms in counter-propagating lattices. Finally, we show that we can use a genetic algorithm to optimize $\pm4\hbar k_\mathrm{L}$ and $\pm6\hbar k_\mathrm{L}$ splitting to within $\approx0.1\%$ by restricting our optimization to the resonance frequencies corresponding to single- and two-photon transitions between Bloch bands.
- Creator
- Date Issued
- 2018-07-01
- Academic Affiliation
- Journal Title
- Journal Issue/Number
- 7
- Journal Volume
- 20
- Last Modified
- 2019-12-05
- Resource Type
- Rights Statement
- DOI
- ISSN
- 1367-2630
- Language
- License
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