Vortices and sound waves in superfluids
Condensed Matter
2007-05-23 v1
Abstract
We consider the dynamics of vortex strings and sound waves in superfluids in the phenomenological Landau-Ginzburg equation. We first derive the vortex equation where the velocity of a vortex is determined by the average fluid velocity and the density gradient near the vortex. We then derive the effective action for vortex strings and sound waves by the dual formulation. The effective action might be useful in calculating the emission rate of sound waves by moving vortex strings.
Keywords
Cite
@article{arxiv.cond-mat/9409046,
title = {Vortices and sound waves in superfluids},
author = {Kimyeong Lee},
journal= {arXiv preprint arXiv:cond-mat/9409046},
year = {2007}
}
Comments
10 pages, phyzzx macro, CU-TP-652 and NI-94-013