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Integral representation of the RPA correlation energy

F. Doenau·D. Almehed·R. G. Nazmitdinov
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Abstract

Using the spectral function F'(z)/F(z) the RPA correlation energy and other properties of a finite system can be written as a contour integral in a compact way. This yields a transparent expression and reduces drastically the numerical efforts for obtaining reliable values. The method applied to pairing vibrations in rotating nuclei as an illustrative example.

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F. Doenau, D. Almehed, R. G. Nazmitdinov. 1999-02-25. Integral representation of the RPA correlation energy. https://doi.org/10.1103/physrevlett.83.280

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