Order parameter fluctuations in the holographic superconductor
Abstract
We investigate the effect of order parameter fluctuations in the holographic superconductor. In particular, using a fully backreacted bulk geometry, the intrinsic spectral functions of the order parameter in both the normal and the superconducting phase are computed. We also present a vector-like large- version of the Ginzburg-Landau model that accurately describes our long-wavelength results in both phases. The large- limit of the latter model explains why the Higgs mode and the second-sound mode are not present in the spectral functions. Our results indicate that the holographic superconductor describes a relativistic multi-component superfluid in the universal regime of the BEC-BCS crossover.
Cite
@article{arxiv.1511.05112,
title = {Order parameter fluctuations in the holographic superconductor},
author = {N. W. M. Plantz and H. T. C. Stoof and S. Vandoren},
journal= {arXiv preprint arXiv:1511.05112},
year = {2017}
}
Comments
21 pages, 15 figures; version accepted for publication