Metallic xenon. Polarizability. Equation of state

TL;DR

This paper investigates the physical properties of inert gas condensates, especially xenon, focusing on polarizability, equation of state, and metallization, using simplified models based on the first excited atomic state.

Contribution

It introduces a simplified approach to describe inert gas properties and metallization by considering only the first excited atomic state and relates metallization criteria to known physical thresholds.

Findings

Herzfeld criterion aligns with Mott transition and percolation threshold.

Excitations in metallic xenon correspond to Bose condensation at around 4000K.

BCS theory estimates a transition temperature near 5000K.

Abstract

It is shown that some of the physical properties of inert gas (IG) condensates (polarizability, compressibility, metallization under pressure, equation of state) may be well described taking into account the first excited state of atoms only. The Herzfeld criterion of metallization well corresponds to the Mott transition criterion and to the percolation threshold. For metallic xenon concentration of the molecular type excitations corresponds to the Bose condensation temperature $T_C\sim 4000K$. The BCS formula gives $T_c\sim 5000K$. If phonons are changed by fluctuations of interatomic interaction energy. A simple relations between the parameters of atoms at metallization has been found.