The wide-range equation of state

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Abstract
A quasiclassical simple model (QM) of equation of state is proposed for an electron component of the matter1–3. The QM is valid over a wide range of densities and temperatures, connecting the regions of the traditional employment of Saha-model and statistical Thomas-Fermi (TF) model with exchanges and quantum corrections (TFK or TFC4). The QM describes from the first principles typical step behaviour of the ionization state and energy, as a result of succeeded ionization of the ion's shells with the temperature increase. Also QM naturally includes the effects of electron-ion interaction with the density increase.

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