Metallic AdS/CFT

@article{Karch2007MetallicA,
  title={Metallic AdS/CFT},
  author={Andreas Karch and Andy O’Bannon},
  journal={Journal of High Energy Physics},
  year={2007},
  volume={2007},
  pages={024-024}
}
We use the AdS/CFT correspondence to compute the conductivity of massive = 2 hypermultiplet fields at finite baryon number density in an = 4 SU(Nc) super-Yang-Mills theory plasma in the large Nc, large 't Hooft coupling limit. The finite baryon density provides charge carriers analogous to electrons in a metal. An external electric field then induces a finite current which we determine directly. Our result for the conductivity is good for all values of the mass, external field and density… 
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