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1993 | 83 | 3 | 391-394
Article title

The Effective Electron-Positron Potential in Jellium

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EN
Abstracts
EN
One of the methods of determining theoretical annihilation characteristics in real metals is the approximation called Bloch modified ladder approach. In this approach a Bethe-Goldstone type equation is solved with an effective electron-positron potential obtained previously for jellium of the corresponding electron density. If one wishes to include the dependence on the local electron density of the e^{+}-e^{-} effective potential in this formalism, it is necessary to know this potential for jellium, for metallic and above metallic densities. A review of different proposed e^{+}-e^{-} potentials is presented and their correctness is evaluated from the point of view of their application in a Bethe-Goldstone type formalism which is the jellium analogue of Bloch modified ladder approach.
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EN
Contributors
author
  • W. Trzebiatowski Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P.O.Box 937, 50-950 Wrocław 2, Poland
author
  • W. Trzebiatowski Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P.O.Box 937, 50-950 Wrocław 2, Poland
author
  • W. Trzebiatowski Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P.O.Box 937, 50-950 Wrocław 2, Poland
References
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bwmeta1.element.bwnjournal-article-appv83z325kz
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