Quark electric dipole moment induced by magnetic field

P. V. Buividovich (1) , Maxim N. Chernodub (2) , E. V. Luschevskaya (1) , M. I. Polikarpov (1)

1 ITEP - Institute of Theoretical and Experimental Physics [Moscow]
2 LMPT - Laboratoire de Mathématiques et Physique Théorique

We show numerically that quarks develop an electric dipole moment in the direction of a sufficiently intense magnetic field due to local fluctuations of topological charge. This anomalous CP-odd effect is a spin analogue of the Chiral Magnetic Effect in QCD.

Mots clés: chiral magnetic effect; quark gluon plasma; electric dipole moment; strong magnetic field

Domaines: Physique des Hautes Energies - Réseau [hep-lat]; Physique des Hautes Energies - Phénoménologie [hep-ph]; Physique des Hautes Energies - Théorie [hep-th]

P. V. Buividovich, Maxim N. Chernodub, E. V. Luschevskaya, M. I. Polikarpov. Quark electric dipole moment induced by magnetic field. Physical Review D, 2010, 81, pp.036007. ⟨10.1103/PhysRevD.81.036007⟩. ⟨hal-00418168⟩