Mean-field transport of a Bose-Einstein condensate
Samy Mailoud Sekkouri, Sandro Wimberger
TL;DR
This paper investigates how interactions influence the transport properties of a Bose-Einstein condensate during expansion, using a mean-field approach to compare with recent ultracold gas experiments.
Contribution
It provides a detailed analysis of interaction effects on condensate transport in free space and optical lattices within a mean-field framework, connecting theory with experiments.
Findings
Interactions can enhance or suppress transport depending on their nature.
Mean-field approach captures key features observed in experiments.
Transport behavior varies with interaction strength and sign.
Abstract
The expansion of an initially confined Bose-Einstein condensate into either free space or a tilted optical lattice is investigated in a mean-field approach. The effect of the interactions is to enhance or suppress the transport depending on the sign and strength of the interactions. These effects are discusses in detail in view of recent experiments probing non-equilibrium transport of ultracold quantum gases.
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