THEORY OF WEAKLY COUPLED RELATIVISTIC PLASMA - DIFFUSION AND TRANSPORT ACROSS A MAGNETIC-FIELD

Explicit analytic calculations concerning transport coefficients are presented for a relativistic magnetized and collisional plasma, especially at moderately-relativistic (10 keV less than or equal to kT less than or equal to 1 GeV) and ultra-relativistic (kT > 1 GeV) temperature limits covering up to Planck's scale. Transport coefficients, such as electrical resistivity (eta(R)) and thermal conductivity (kappa(R)), except the thermoelectric coefficient (lambda(R)), however, strikingly decrease with increase in thermal energy (kT), particularly in a moderately-relativistic temperature limit, whereas in an ultrarelativistic temperature regime the trend is similar, although it is rather more drastic. Our results are of importance for understanding collisional transport processes occurring in astrophysical situations and laboratory diagnostic experiments.