Non-Fermi liquid behavior of the drag and diffusion coefficients in QED plasma

Abstract

We calculate the drag and diffusion coefficients in low temperature QED plasma and go beyond the leading order approximation. The non-Fermi-liquid behavior of these coefficients are clearly revealed. We observe that the subleading contributions due to the exchange of soft transverse photon in both cases are larger than the leading order terms coming from the longitudinal sector. The results are presented in closed form at zero and low temperature.

Comments: 9 pages, 3 eps figures, accepted for publication in Physical Review D