On the Chiral Magnetic Effect in Soft-Wall AdS/QCD

Abstract

The essence of the chiral magnetic effect is generation of an electric current along an external magnetic field. Recently it has been studied by Rebhan et al. within the Sakai--Sugimoto model, where it was shown to be zero. As an alternative, we calculate the chiral magnetic effect in soft-wall AdS/QCD and find a non-zero result with the natural boundary conditions. The mechanism of the dynamical neutralization of the chiral chemical potential via the string production is discussed in the dual two-form representation.

16 pages, no figures, references corrected

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• P and CP Violation and New Thermalization Scenario in Heavy Ion Collisions
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• The Isospin Asymmetry in Anomalous Fluid Dynamics
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