Ground state correlations and anharmonicity of vibrations

A. P. Severyukhin; V. V. Voronov; D. Karadjov

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Ground state correlations and anharmonicity of vibrations

A. P. Severyukhin·V. V. Voronov·D. Karadjov

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Abstract

A consistent treatment of the ground state correlations beyond the random phase approximation including their influence on the pairing and phonon-phonon coupling in nuclei is presented. A new general system of nonlinear equations for the quasiparticle phonon model (QPM) is derived. It is shown that this system contains as a particular case all equations derived for the QPM early. New additional Pauli principle corrections resulting in the anharmonical shifts of energies of the two-phonon configurations are found. A correspondence between the generalized QPM equations and the nuclear field theory is discussed.

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A. P. Severyukhin, V. V. Voronov, D. Karadjov. 2000-11-23. Ground state correlations and anharmonicity of vibrations. https://arxiv.org/abs/nucl-th/0011052

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