Conditions for the validity of ATDHF and the local harmonic approach |
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| Authors: | P.-G. Reinhard K. Goeke |
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| Affiliation: | Institut für Kernphysik, Universität Mainz, D-6500 Mainz, West Germany;Institut für Kernphysik, KFA Jülich, D-5170 Jülich, West Germany |
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| Abstract: | A short derivation of the local harmonic approach and ATDHF is given which elucidates the formal similirity between them. The conditions for the validity of the approaches are studied. We show first, that they are related to deviation forces within second order RPA which drive the system out of the collective mode, and second, that the local harmonic approach is more restricted than ATDHF. |
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