Time-dependent Hartree-Fock polarizability and random phase approximation sum rules
1978; Elsevier BV; Volume: 309; Issue: 1-2 Linguagem: Inglês
10.1016/0375-9474(78)90542-0
ISSN1873-1554
AutoresS. Stringari, E. Lipparini, G. Orlandini, M. Traini, R. Leonardi,
Tópico(s)Spectroscopy and Quantum Chemical Studies
ResumoDifferent isovector and isoscalar giant resonances (dipole, monopole and quadrupole) have been studied by evaluating energy-weighted and cubic energy-weighted sum rules. Calculations have been performed within the RPA using different variants of the Skyrme interaction. The link between the two RPA rum rules and the parameters of a collective Hamiltonian has been explicitly shown. Excitation energies and strengths are compared with experiments and with the predictions of other approaches.
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