Microscopic theory of strong superfluidity |
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Authors: | M Baldo A Grasso |
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Institution: | (1) ECT*, Strada delle Tabarelle 286, I-38050 Villazzano (TN), Italy;(2) INFN, Sez. Catania, Corso Italia 57, I-95129 Catania, Italy;(3) Dipartimento di Fisica, Università di Catania, Corso Italia 57, I-95129 Catania, Italy |
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Abstract: | Various forms of superfluidity in nuclei and nuclear and neutron matter are characterized by the relevance of strong nucleon-nucleon correlations, as well as by gap values, which can be a substantial fraction of the Fermi energy. We present a microscopic many-body theory of nuclear superfluidity. The influence of various physical effects is analyzed within the Green's function formalism and the Bethe-Brueckner-Goldstone expansion. In particular, dispersive effects are discussed in detail. We point out open problems that must be solved before a full understanding of nuclear superfluidity can be achieved. |
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