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arXiv · 0710.1737

A number filter for matter-waves

G. Nandi·A. Sizmann·J. Fortágh·R. Walser
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Abstract

In current Bose-Einstein condensate experiments, the shot-to-shot variation of atom number fluctuates up to 10%. In here, we present a procedure to suppress such fluctuations by using a nonlinear p-pi-pbar matter wave interferometer for a Bose-Einstein condensate with two internal states and a high beam-splitter asymmetry (p, pbar not-equal 0.5). We analyze the situation for an inhomogeneous trap within the Gross-Pitaevskii mean-field theory, as well as a quantum mechanical Josephson model, which addresses complementary aspects of the problem and agrees well otherwise.

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G. Nandi, A. Sizmann, J. Fortágh, R. Walser. 2007-10-09. A number filter for matter-waves. https://doi.org/10.1103/physreva.78.013605

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