Axial anomaly, Dirac sea, and the chiral magnetic effect

Details Axial anomaly, Dirac sea, and the chiral magnetic effect Axial anomaly, Dirac sea, and the chiral magnetic effect

2010-10-05

arxiv.org/abs/1010.0943v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, to appear in the Proceedings of Gribov-80 Memorial conference, ICTP, Trieste, Italy, May 26-28, 2010

Scientific paper

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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