Two-Temperature Model of Compressed Atoms in a Dense Plasma

Abstract

We propose and analyze the two-temperature model of compressedatoms, immersed in a dense plasma, which is composed of an ion core inits ground state (T=0) and a clad electron gas at finitetemperatures. They are out of thermal equilibrium. The profiles ofthe electron density and the screening function within the atom arecalculated numerically on the basis of the variationalThomas-Fermi-Dirac-Weizsäcker equation. A limit of validity of themodel is also discussed.