Transport Coefficients Of The Plasmas Following The Power-law Distributions

Plasma is usually not in thermodynamic equilibrium state. Due to the collision between particles, plasma by non-equilibrium state gradually tends to equilibrium state, which is called transport process. The transport process is a kind of important basic process, and to determine the transport coefficient is the basic task of the transport theory. The nonextensive statistical theory to study the non-equilibrium properties of plasma where the Coulombian interactions play an important role, has been widely applied in this field. The electron of plasma is following nonextensive power-law distribution in the framework of nonextensive statistical theory. By means of using the transport equation and distribution function of plasma, transport coefficients of plasmas is calculated in Krook collision term. In the way, diffusion coefficient, electric conductivity, viscosity coefficient and thermal conductivity are accurately derived. It is shown that these transport coefficients are significantly modified by the q-parameter, and the limit of the parameter q→1, these generalized coefficients are reduced to the standard forms for a Maxwell distribution. These transport coefficients modified by the q-parameter is easier to study the transport process of plasma.Transport coefficients of plasmas following the power-law distribution are studied by means of using the transport equation and distribution function of plasma in the strong magnetic field. Expressions of these coefficients Hall effect, electric conductivity, Nernst effect, thermoelectric coefficient of the power-law distribution are accurately derived. It is shown that these transport coefficients are significantly modified by the q-parameter, and the limit of the parameter q→1 they are reduced to the standard forms for a Maxwell distribution.