Integral representation of the RPA correlation energy
arXiv:nucl-th/9902073 · doi:10.1103/PhysRevLett.83.280
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.
9 pages, 2 figures (eps files)
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