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Mean-field expansion in Bose-Einstein condensates with finite-range interactions

Ralf Schützhold·Michael Uhlmann·Yan Xu·Uwe R. Fischer
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Abstract

We present a formal derivation of the mean-field expansion for dilute Bose-Einstein condensates with two-particle interaction potentials which are weak and finite-range, but otherwise arbitrary. The expansion allows for a controlled investigation of the impact of microscopic interaction details (e.g., the scaling behavior) on the mean-field approach and the induced higher-order corrections beyond the s-wave scattering approximation.

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Ralf Schützhold, Michael Uhlmann, Yan Xu, Uwe R. Fischer. 2005-10-21. Mean-field expansion in Bose-Einstein condensates with finite-range interactions. https://doi.org/10.1142/s0217979206035631

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