DBI equations and holographic DC conductivity
High Energy Physics - Theory
2013-05-29 v2
Abstract
We provide a simple method for writing the Dirac-Born-Infeld (DBI) equations of a Dp-brane in an arbitrary static background whose metric depends only on the holographic radial coordinate z. Using this method we revisit the Karch-O'Bannon's procedure to calculate the DC conductivity in the presence of constant electric and magnetic fields for backgrounds where the boundary is four or three dimensional and satisfies homogeneity and isotropy. We find a frame-independent expression for the DC conductivity tensor. For particular backgrounds we recover previous results on holographic metals and strange metals.
Cite
@article{arxiv.1302.0802,
title = {DBI equations and holographic DC conductivity},
author = {Alfonso Ballon-Bayona and Cristine N. Ferreira and Victor J. Vasquez Otoya},
journal= {arXiv preprint arXiv:1302.0802},
year = {2013}
}
Comments
1+21 pages; v2 : references added, minor typos corrected