On the theory of nonlinear response in a nonideal plasma |
| |
Authors: | G A Pavlov |
| |
Institution: | 1.Institute of Chemical Physics,Russian Academy of Sciences,Chernogolovka, Moscow oblast,Russia |
| |
Abstract: | A theory of nonlinear response is developed for studying nonlinear phenomena and nonlinear transport processes in nonideal
Coulomb systems. Temporal plasma echo and transformation of waves in a nonideal Coulomb system are studied on the basis of
the theory of nonlinear response to mechanical perturbations. General constraints imposed on nonlinear response functions
are considered, and the model for determining quadratic response functions is formulated. The conditions for the emergence
of temporal plasma echo and wave transformation are determined. It is shown that these nonlinear effects in a nonideal plasma
can be initiated by ultrashort field pulses. A theory of transport is developed for determining the Burnett transport properties
of a nonideal multielement plasma. A procedure is proposed for comparing the phenomenological conservation equations for a
charged continuous medium and equations of motion for the operators of corresponding dynamic variables. The Mori algorithm
is used for deriving the equations of motion for operators of dynamic variables in the form of generalized Langevin equations.
The linearized Burnett approximation is considered in detail. The properties of the matrices of coefficients of higher-order
derivatives in the system of conservation equations in the linearized Burnett approximation, which are important for hydrodynamic
applications, are discussed. Various versions of the theory of nonlinear response are compared. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|