TY  - JOUR
A1  - Diallo, Abdoulaye
A1  - Henkel, Carsten
T1  - Excitations at the border of a condensate
JF  - Journal of physics : B, Atomic, molecular and optical physics
N2  - We solve the Bogoliubov 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.
KW  - Bose-Einstein condensate
KW  - quantum gas
KW  - elementary excitation
KW  - dynamic structure factor
KW  - Feshbach resonance
Y1  - 2015
U6  - https://doi.org/10.1088/0953-4075/48/16/165302
SN  - 0953-4075
SN  - 1361-6455
VL  - 48
IS  - 16
PB  - IOP Publ. Ltd.
CY  - Bristol
ER  -