A note on conductivity and charge diffusion in holographic flavour systems

Details A note on conductivity and charge diffusion in holographic flavour systems A note on conductivity and charge diffusion in holographic flavour systems

2008-11-11

arxiv.org/abs/0811.1750v2

JHEP 0901:025,2009

Physics

High Energy Physics

High Energy Physics - Theory

15 pages, 3 figures, v2 with minor corrections

Scientific paper

10.1088/1126-6708/2009/01/025

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.

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