| Abstract: | The formation of a metastable plasma state from an initial strongly nonideal state and certain properties of this metastable
supercooled state are considered by directly modeling the dynamics of a system of many Coulomb particles. It is shown that
the relaxation of the average kinetic energy of the particles can be characterized by a universal dimensionless function and,
in particular, that an ultimate value degree of plasma nonidealness occurs which can be reached in the metastable state when
no external action is present. The calculated binary correlation functions are in good agreement with the results of the Debye
model, even outside its range of applicability. The time dependence of the total dipole moment of the system of particles
is investigated. It is shown that there are oscillations of the total dipole moment. These collective oscillations take place
at a frequency which is somewhat below the Langmuir frequency, the oscillations of the free and bound electrons occurring
in antiphase. A hypothesis is advanced to the effect that recombination relaxation is frozen on account of the interaction
of quasibound electrons with the Langmuir oscillations of the free electrons.
Institute of General Physics, Academy of Sciences of the Russian Federation. Translated from Izvestiya Vysshikh Uchebnykh
Zavedenii, Fizika, No. 10, pp. 3–16, October, 1996. |
