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arXiv · 1503.03661

Matter-wave scattering from strongly interacting bosons in an optical lattice

Klaus Mayer·Alberto Rodriguez·Andreas Buchleitner
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Abstract

We study the scattering of a matter-wave from an interacting system of bosons in an optical lattice, focusing on the strong-interaction regime. Analytical expressions for the many-body scattering cross section are derived from a strong-coupling expansion and a site-decoupling mean-field approximation, and compared to numerically obtained exact results. In the thermodynamic limit, we find a non-vanishing inelastic cross section throughout the Mott insulating regime, which decays quadratically as a function of the boson-boson interaction.

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Klaus Mayer, Alberto Rodriguez, Andreas Buchleitner. 2015-03-12. Matter-wave scattering from strongly interacting bosons in an optical lattice. https://arxiv.org/abs/1503.03661

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