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arXiv · 1504.03164

Excitations at the border of a condensate

Abdoulaye Diallo·Carsten Henkel
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Abstract

We solve the Bogoliubov--de Gennes equations for an inhomogeneous condensate in the vicinity of a linear turning point. A stable integration scheme is developed using a transformation into an adiabatic basis. We identify boundary modes trapped in a potential whose shape is similar to a Hartree-Fock mean-field treatment. These modes are non-resonantly excited when bulk modes reflect at the turning point and contribute significantly to the spectrum of local density fluctuations.

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Abdoulaye Diallo, Carsten Henkel. 2015-04-13. Excitations at the border of a condensate. https://doi.org/10.1088/0953-4075/48/16/165302

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