Higher derivative corrections to incoherent metallic transport in holography

  title={Higher derivative corrections to incoherent metallic transport in holography},
  author={Matteo Baggioli and Blaise Gout{\'e}raux and Elias Kiritsis and Wei-Jia Li},
  journal={Journal of High Energy Physics},
A bstractTransport in strongly-disordered, metallic systems is governed by diffusive processes. Based on quantum mechanics, it has been conjectured that these diffusivities obey a lower bound D/v2 ≳ ℏ/kBT , the saturation of which provides a mechanism for the T-linear resistivity of bad metals. This bound features a characteristic velocity v, which was later argued to be the butterfly velocity vB, based on holographic models of transport. This establishes a link between incoherent metallic… 

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