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Young-Dae Jung and D. Kato
Quantum and Plasma Screening Effects on the Wannier Threshold Law for the Double-electron Ionization in Strongly Coupled Semiclassical Plasmas
Date of publication:
June 30, 2009
double-electron ionization, Wannier threshold law, strongly coupled semiclassical plasma
The quantum and plasma screening effects on the Wannier threshold law for the double-electron ionization are investigated in strongly coupled semiclassical plasmas. The renormalized electron charge and Wannier exponent are obtained by considering the equation of motion in the Wannier configuration with the screened pseudopotential model as functions of the de Broglie wave length, Debye length, and charge of the residual ion. It is shown that the renormalized electron charge significantly increases with an increase of the de Broglie wave length, especially, for small radial distances. It is also shown that the quantum effects enhance the Wannier exponent for the doubleelectron ionization. In addition, the quantum effect on the Wannier threshold law is found to be more important than the plasma screening effect in strongly coupled semiclassical plasmas.
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