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From sum rules to RPA: 1. Nuclei
Author(s) -
Reinhard P.G.
Publication year - 1992
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/andp.19925040805
Subject(s) - linear subspace , hierarchy , subspace topology , physics , magic (telescope) , spectral line , random phase approximation , momentum (technical analysis) , theoretical physics , quantum mechanics , computer science , pure mathematics , mathematics , artificial intelligence , economics , market economy , finance
We take up the flexible formulation of RPA in subspaces of coordinate‐like and momentum‐like 1 ph operators which was developed in the preceeding paper. We draw the connection to many of the known collective approximations to RPA by proper choice of the subspace of operators. We finally apply the newly developed scheme to comparative studies of a hierarchy of approaches for the RPA spectra of doubly magic nuclei described with Skyrme forces.