Inhomogeneous Structures in Holographic Superfluids: II. Vortices
High Energy Physics - Theory
2011-02-28 v2
Abstract
We study vortex solutions in a holographic model of Herzog, Hartnoll, and Horowitz, with a vanishing external magnetic field on the boundary, as is appropriate for vortices in a superfluid. We study relevant length scales related to the vortices and how the charge density inside the core of the vortex behaves as a function of temperature or chemical potential. We extract the critical superfluid velocity from the vortex solutions, study how it behaves as a function of the temperature, and compare it to earlier studies and to the Landau criterion. We also comment on the possibility of a Berezinskii-Kosterlitz-Thouless vortex confinement-deconfinement transition.
Keywords
Cite
@article{arxiv.0912.4280,
title = {Inhomogeneous Structures in Holographic Superfluids: II. Vortices},
author = {Ville Keranen and Esko Keski-Vakkuri and Sean Nowling and K. P. Yogendran},
journal= {arXiv preprint arXiv:0912.4280},
year = {2011}
}
Comments
32 pages, 10 figures, typos corrected, references added