Submitted:
16 April 2026
Posted:
17 April 2026
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Abstract
The composition of partially ionised plasmas is investigated for densities and temperatures at which the free electrons are degenerate. Based on a quantum statistical approach, the effect of Pauli blocking is addressed. Specifically, one- and two-electron ions are studied. New results regarding the degree of ionisation and the Mott effect are presented. Standard codes for plasma properties do not take Pauli blocking effects into account and are therefore unable to explain the experiments in the high-density regime, where the electrons are degenerate.
Keywords:
partially ionized plasmas
; ionization potential depression
; warm dense matter
; Pauli blocking
; Mott effect
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