A note on conductivity and charge diffusion in holographic flavour systems
High Energy Physics - Theory
2009-04-24 v2
Abstract
We analyze the charge diffusion and conductivity in a Dp/Dq holographic setup that is dual to a supersymmetric Yang-Mills theory in p+1 dimensions with N_f<< N_c flavour degrees of freedom at finite temperature and nonvanishing U(1) baryon number chemical potential. We provide a new derivation of the results that generalize the membrane paradigm to the present context. We perform a numerical analysis in the particular case of the D3/D7 flavor system. The results obtained support the validity of the Einstein relation at finite chemical potential.
Cite
@article{arxiv.0811.1750,
title = {A note on conductivity and charge diffusion in holographic flavour systems},
author = {Javier Mas and Jonathan P. Shock and Javier Tarrio},
journal= {arXiv preprint arXiv:0811.1750},
year = {2009}
}
Comments
15 pages, 3 figures, v2 with minor corrections