Abstract
In this chapter we extend the TDA particle-hole formalism of Chap. 9 to include correlations in the nuclear ground state. This sophisticated particle-hole formalism is called the random-phase approximation (RPA). In this description the simple Hartree-Fock particle-hole vacuum is replaced by a correlated ground state involving many-particle-many-hole excitations of the simple particle-hole vacuum. The resulting configuration mixing in excited states is more involved in the RPA than it is in the TDA. The ground-state correlations induce both particle-hole and hole-particle components in the RPA wave function.
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© 2007 Springer-Verlag Berlin Heidelberg
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Suhonen, J. (2007). The Random-Phase Approximation. In: From Nucleons to Nucleus. Theoretical and Mathematical Physics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-48861-3_11
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DOI: https://doi.org/10.1007/978-3-540-48861-3_11
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-48859-0
Online ISBN: 978-3-540-48861-3
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