Crow instability in unitary Fermi gas
Quantum Gases
2013-07-23 v2
Abstract
We investigate the initiation and subsequent evolution of Crow instability in an inhomogeneous unitary Fermi gas using zero-temperature Galilei-invariant non-linear Schr\"odinger equation. Considering a cigar-shaped unitary Fermi gas, we generate the vortex-antivortex pair either by phase-imprinting or by moving a Gaussian obstacle potential. We observe that the Crow instability in a unitary Fermi gas leads to the decay of the vortex-antivortex pair into multiple vortex rings and ultimately into sound waves.
Cite
@article{arxiv.1206.1825,
title = {Crow instability in unitary Fermi gas},
author = {S. Gautam},
journal= {arXiv preprint arXiv:1206.1825},
year = {2013}
}
Comments
7 pages, 4 figures, Accepted for publication in Mod. Phys. Lett. B (MPLB)