TRANSPORT PROPERTIES OF DENSE DEUTERIUM-TRITIUM PLASMA
DOI:
https://doi.org/10.26577/JPEOS.2024.v26-i2-a5Keywords:
Dense plasma, inertial confinement fusion, Coulomb logarithm, effective potential, transport propertiesAbstract
Warm dense matter is intensively studied all over the world both experimentally and theoretically. At high temperatures and pressures, the existing theoretical models of liquid, gas, solid and plasma are inapplicable to the extreme state of matter. The main obstacle to the application of these models is the strong nonideality of the medium, that is, the significant role played by the interaction of particles and quantum effects. The transport properties of materials in a wide range of densities and temperatures, in particular, for substances under extreme conditions, are important in various fields. Some systems of interest include the interiors of giant planets, white dwarfs, and heated dense matter generated by laser heating and shock compression in experiments. In addition, heated dense matter is actively studied in connection with the development of inertial thermonuclear fusion facilities. Due to the difficulties of diagnostics under extreme conditions in experiments, quantum molecular dynamics (QMD) modeling based on the density functional theory has become an integral part of modern studies of heated dense matter. In this work, we present the results of calculations of the transport properties of beryllium using methods based on density functional theory (DFT simulation). We have computed diffusion and viscosity coefficients on the basis of DFT-simulation for various values of parameters of heated dense beryllium.
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