Low lying twisting and acoustic modes of a rotating Bose-Einstein condensate
Mesoscale and Nanoscale Physics
2016-08-16 v2
Abstract
We present a calculation of the low lying spectrum of a rotating Bose-Einstein condensate. We show that in a cylindrical geometry, there exist two linear branches, one associated to usual acoustic excitation, the other corresponding to a twisting mode of the vortex lattice. Using a hydrodynamical approach we derive the elasticity coefficient of the vortex lattice and calculate the spectrum of condensate in a three dimensionnal harmonic trap with cylindrical symmetry.
Keywords
Cite
@article{arxiv.cond-mat/0511547,
title = {Low lying twisting and acoustic modes of a rotating Bose-Einstein condensate},
author = {Frédéric Chevy},
journal= {arXiv preprint arXiv:cond-mat/0511547},
year = {2016}
}
Comments
4 pages, 2 figures