Speaker
Description
Using the imaginary part of the self-energy function in the Landau-level representation, we derive the fermion damping rate in a hot magnetized plasma at the leading order of coupling. The results are used to investigate the longitudinal and transverse electrical conductivities by employing first-principles quantum field theoretical methods. In the relativistic regime, these conductivities exhibit a scaling behavior expressed in terms of dimensionless functions of eB/T^2, where T represents the temperature and B is the magnetic field. We demonstrate that the underlying mechanisms governing the transverse and longitudinal conductivities differ significantly, resulting in a substantial suppression of the former compared to the latter. Although the approximation loses validity due to strong coupling in QCD, we extend our analysis to a magnetized quark-gluon plasma.
