Electric Conductivity of Non-Equilibrium QCD

Document Type : Full length research Paper

Authors

1 Assistant Professor-Buein Zahra Technical University

2 Ilam

Abstract

In this paper, we aim to investigate the electric conductivity of an out of equilibrium system of QCD at low temperatures. One way to study such systems is to apply a time dependent electric field and examine the out of equilibrium behavior of the system. The electric field produces pairs of quarks and antiquarks from the field theory vacuum leading to an electric current. By using the relation between the applied electric field and its relevant current, the electric conductivity of the field theory can be obtained. We use a non-critical holographic model of QCD to study the time dependent out of equilibrium solution of the system non-perturbatively and examine the effects of parameters such as electric field magnitude and frequency as well as the charge density on electric conductivity. Finally, we compare our results with those from other holographic models.

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References

 
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Journal of Research on Many-body Systems
Volume 7, Issue 13
June 2017
Pages 51-59

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History

  • Receive Date: 17 September 2016
  • Revise Date: 25 December 2016
  • Accept Date: 13 February 2017

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