Autor: |
Deshmukh, Pranawa C., Manson, Steven T. |
Předmět: |
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Zdroj: |
Atoms (2218-2004); Sep2022, Vol. 10 Issue 3, p71-71, 26p |
Abstrakt: |
Approximation methods are unavoidable in solving a many-electron problem. One of the most successful approximations is the random-phase approximation (RPA). Miron Amusia showed that it can be used successfully to describe atomic photoionization processes of many-electron atomic systems. In this article, the historical reasons behind the term "random-phase approximation" are revisited. A brief introduction to the relativistic RPA (RRPA) developed by Walter Johnson and colleagues is provided and some of its illustrative applications are presented. [ABSTRACT FROM AUTHOR] |
Databáze: |
Complementary Index |
Externí odkaz: |
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