Axial anomaly, Dirac sea, and the chiral magnetic effect
classification
✦ hep-ph
nucl-th
keywords
magneticanomalyaxialchiralcollectiveeffectmotionarbitrarily
read the original abstract
Gribov viewed the axial anomaly as a manifestation of the collective motion of charged fermions with arbitrarily high momenta in the vacuum. In the presence of an external magnetic field and a chirality imbalance, this collective motion becomes directly observable in the form of the electric current - this is the chiral magnetic effect (CME). I give an elementary introduction into the physics of CME, and discuss some recent developments.
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