The magnetohydrodynamical equations for a multi-component magnetized ionic mixture are used to derive the spectrum of collective modes for small wave numbers. The results are compared with those from formal kinetic theory, which is based on the microscopic balance equations and a...

Shear and volume viscosity of the cosmic fluid in the lepton era are calculated with the help of relativistic kinetic theory. The cosmic fluid is taken to be a mixture of neutrinos (νe, νμ, ντ), electrons (e-) and their antiparticles. The differential cross-sections are determined on the...

The six viscosity coefficients characterizing a magnetized pe- γ-plasma are calculated on the basis of relativistic kinetic theory.

The effective Hamiltonian for the degenerate energy-eigenvalue problem in adiabatic perturbation theory is cast in a form that permits an expansion in Feynman diagrams. By means of a block representation a resummation of these diagrams is carried out such that in the adiabatic limit no...

The longitudinal self-diffusion coefficient for a magnetized plasma with small plasma parameter is calculated from kinetic theory in the weak-coupling approximation. Asymptotic expressions for this coefficient are derived in the limits of weak and of strong magnetic field. For intermediate...

The memory kernel of the kinetic equation for the time correlation function of a quantum fluid is determined both in third order of the interaction strength and in the low-density approximation. The results are obtained with the help of a diagram representation for the kernel. The connexion with...

Equilibrium statistical methods are used to derive sum rules for two- and three-particle correlation functions of a multi-component ionic mixture. Some of these rules are general consequences of the electrostatic character of the interaction, whereas others depend on specific thermodynamic...

Starting from the Maxwell-Bloch theory in the uniform-field approximation we investigate the stability of the phase of the output field for absorptive optical bistability in a Fabry-Perot cavity. Our main results are analytical. We show that a truncation of the Maxwell-Bloch hierarchy introduces...

The long-time behaviour of the longitudinal and the transverse heat-conductivity time correlation functions for a magnetized one-component plasma is studied by means of kinetic theory. To that end these correlation functions, which are defined as the inverse Laplace transforms of the dynamic...

A general class of approximate expressions for the pair correlation function of a classical one-component plasma with small plasma parameter ϵ is discussed. The collision terms which follow from these approximate correlation functions are characterized by effective potentials that differ from...