Quantum Kelvin-Helmholtz instability in phase-separated two-component Bose-Einstein condensates
Quantum Gases
2010-04-08 v2 Other Condensed Matter
Fluid Dynamics
Abstract
We theoretically study the Kelvin-Helmholtz instability in phase-separated two-component Bose-Einstein condensates using the Gross-Pitaevskii and Bogoliubov-de Gennes models. A flat interface between the two condensates is shown to deform into sawtooth or Stokes-like waves, leading to the formation of singly quantized vortices on the peaks and troughs of the waves. This scenario of interface instability in quantum fluids is quite different from that in classical fluids.
Cite
@article{arxiv.0909.2144,
title = {Quantum Kelvin-Helmholtz instability in phase-separated two-component Bose-Einstein condensates},
author = {Hiromitsu Takeuchi and Naoya Suzuki and Kenichi Kasamatsu and Hiroki Saito and Makoto Tsubota},
journal= {arXiv preprint arXiv:0909.2144},
year = {2010}
}
Comments
5 pages, 4 figures