Excitations at the border of a condensate
Quantum Gases
2015-07-13 v1
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.
Keywords
Cite
@article{arxiv.1504.03164,
title = {Excitations at the border of a condensate},
author = {Abdoulaye Diallo and Carsten Henkel},
journal= {arXiv preprint arXiv:1504.03164},
year = {2015}
}