12-18 August 2012
US/Eastern timezone

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Instantons and Sphalerons in a Magnetic Field

17 Aug 2012, 17:30
Empire ()



Gokce Basar (Stony Brook University)


I study the properties of the Euclidean Dirac equation for a light fermion in the presence of both a constant abelian magnetic field and an SU(2) instanton. In particular, I analyze the zero modes analytically in various limits, both on R^4 and on the four-torus, in order to compare with recent lattice QCD results, and study the implications for the electric dipole moment of the instanton induced by the magnetic field. I also present a holographic computation of the sphaleron rate of a strongly coupled plasma in a the presence of a constant magnetic flux and discuss its various physical implications.

Primary author

Gokce Basar (Stony Brook University)


Prof. Dmitri Kharzeev (Stony Brook University) Prof. Gerald Dunne (University of Connecticut)

Presentation Materials