Ab initio self-consistent Gorkov-Green's function calculations of semimagic nuclei: Formalism at second order with a two-nucleon
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Somà, V, Duguet, T and Barbieri, C (2011) Ab initio self-consistent Gorkov-Green's function calculations of semimagic nuclei: Formalism at second order with a two-nucleon Physical Review C (Nuclear Physics), 84 (6). ISSN 0556-2813
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Official URL: http://dx.doi.org/10.1103/PhysRevC.84.064317
Abstract
An ab initio calculation scheme for finite nuclei based on self-consistent Green's functions in the Gorkov formalism is developed. It aims at describing properties of doubly magic and semimagic nuclei employing state-of-the-art microscopic nuclear interactions and explicitly treating pairing correlations through the breaking of U(1) symmetry associated with particle number conservation. The present paper introduces the formalism necessary to undertake applications at (self-consistent) second order using two-nucleon interactions in a detailed and self-contained fashion. First applications of such a scheme will be reported soon in a forthcoming publication. Future works will extend the present scheme to include three-nucleon interactions and implement more advanced truncation schemes.
| Item Type: | Article |
|---|---|
| Additional Information: | Copyright 2011 American Physical Society. |
| Divisions: | Faculty of Engineering and Physical Sciences > Physics |
| ID Code: | 121079 |
| Deposited By: | Symplectic Elements |
| Deposited On: | 25 Jan 2012 10:00 |
| Last Modified: | 30 Mar 2013 14:45 |
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