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arXiv · 1310.8306

Estimation of phase diffusion rates in a condensate interferometer using the Gross-Pitaevskii Equation

A. Fallon·R. H. Leonard·C. A. Sackett
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Abstract

Atom interferometers using Bose-Einstein condensates are fundamentally limited by a phase diffusion process that arises from atomic interactions. The Gross-Pitaevskii equation is here used to accurately calculate the diffusion rate for a Bragg interferometer. It is seen to agree with a Thomas-Fermi approximation at large atom numbers and a perturbative approximation at low atom numbers. The diffusion times obtained are generally longer than the coherence times observed in experiments to date.

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A. Fallon, R. H. Leonard, C. A. Sackett. 2014-01-03. Estimation of phase diffusion rates in a condensate interferometer using the Gross-Pitaevskii Equation. https://arxiv.org/abs/1310.8306

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