Two-stream instability in quasi-one-dimensional Bose-Einstein condensates
Quantum Gases
2013-05-20 v1
Abstract
We apply a kinetic model to predict the existence of an instability mechanism in elongated Bose-Einstein condensates. Our kinetic description, based on the Wigner formalism, is employed to highlight the existence of unstable Bogoliubov waves that may be excited in the counterpropagation configuration. We identify a dimensionless parameter, the Mach number at T = 0, that tunes different regimes of stability. We also estimate the magnitude of the main parameters at which two-stream instability is expected to be observed under typical experimental conditions.
Cite
@article{arxiv.0911.4906,
title = {Two-stream instability in quasi-one-dimensional Bose-Einstein condensates},
author = {H. Terças and J. T. Mendonça and G. R. M. Robb},
journal= {arXiv preprint arXiv:0911.4906},
year = {2013}
}
Comments
4 pages