Quantum and plasma screening effects on the Wannier threshold law for the double-electron escape in strongly coupled semiclassical plasmas

Journal Article · Sat Nov 15 04:00:00 EST 2008 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.3021456· OSTI ID:21259685

Jung, Young-Dae ^[1]; Kato, Daiji ^[1]

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1. National Institute for Fusion Science, Toki, Gifu 509-5292 (Japan)

The quantum and plasma screening effects on the Wannier threshold law for the double-electron escape 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 wavelength, Debye length, and charge of the residual ion. It is shown that the renormalized electron charge significantly increases with an increase in the de Broglie wavelength, especially for small radial distances. It is also shown that the quantum effects enhance the Wannier exponent for the double-electron escape. 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.

• OSTI ID: 21259685
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 11 Vol. 15; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
DE BROGLIE WAVELENGTH
DEBYE LENGTH
EQUATIONS OF MOTION
PLASMA
SCREENING
SEMICLASSICAL APPROXIMATION