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Paper   IPM / P / 11678
School of Physics
  Title:   Non-Commutative Holographic QCD and DC Conductivity
  Author(s):  M. Ali-Akbari
  Status:   Preprint
  Year:  2011
  Supported by:  IPM
In this paper we consider non-commutative Sakai-Sugimoto model by using D8-branes probing the background generated by D4-branes with an NSNS B-field turned on. We study response of the system to external electric field which could be parallel to orthogonal to the background B-field. We compute the conductivity as a function of temperature and non-commutativity parameters. Non-commutativity effect, depending on the relative orientation of external and background electromagnetic fields, may increase or decrease the conductivity.

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