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Estimation of phase diffusion rates in a condensate interferometer using the Gross–Pitaevskii equation
Atom interferometers using Bose–Einstein condensates are fundamentally limited by a phase diffusion process that arises from atomic interactions. Numerical solution of 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 …