Above and Below the Wannier Threshold

2007 ◽  
pp. 311-418 ◽  
Author(s):  
Arlene M. Loughan
Keyword(s):  
Wannier Threshold

Plasmon effects on the Wannier threshold law in hot quantum plasmas

2008 ◽  
Vol 78 (1) ◽  
pp. 015502 ◽  
Author(s):  
Sung-Han Kim ◽  
Young-Dae Jung
Keyword(s):  
Quantum Plasmas ◽  
Wannier Threshold

scholarly journals Incorporation of Threshold Phenomena in Three-body Coulomb Continuum Wavefunctions

1996 ◽  
Vol 49 (6) ◽  
pp. 1095 ◽  
Author(s):  
Jamal Berakdar
Keyword(s):  
Spin Asymmetry ◽  
Excess Energy ◽  
Absolute Value ◽  
Threshold Phenomena ◽  
Cusp Conditions ◽  
Wannier Threshold ◽  
Coulomb Boundary Conditions ◽  
Three Body ◽  
Energy Sharing ◽  
First Time

In this work a three-body Coulomb wavefunction for the description of two continuum electrons moving in the field of a nucleus is constructed such that the Wannier threshold law for double escape is reproduced and the asymptotic Coulomb boundary conditions as well as the Kato cusp conditions are satisfied. It is shown that the absolute value of the total cross section, as well as the spin asymmetry, are well described by the present approach. Further, the excess-energy sharing between the two escaping electrons is calculated and analysed in light of the Wannier theory predictions. This is the first time an analytical three-body wavefunction is presented which is asymptotically exact and capable of describing threshold phenomena.

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