Article

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

• Weidner, C. A.
• Anderson, D. Z.

Date Issued

• 2018-07-01

Academic Affiliation

• Physics

Journal Title

• New Journal of Physics

Journal Issue/Number

• 7

Journal Volume

• 20

Last Modified

• 2019-12-05

Resource Type

• Article

Rights Statement

• In Copyright

DOI

•  https://dx.doi.org/10.1088/1367-2630/aad36c

ISSN

• 1367-2630

Language

• English [eng]

License

• Creative Commons BY Attribution 4.0 International

Relationships

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