Pairing correlations and effective mass
نویسندگان
چکیده
منابع مشابه
Pairing Correlations
Part 1: description of odd nuclei in mean-field theories. Abstract In order to extract informations on pairing correlations in nu-clei from experimental mass differences, the different contributions to odd-even mass differences are investigated within the Skyrme HFB 1 method. In this first paper, the description of odd nuclei within HFB is discussed since it is the key point for the understandi...
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I begin by briefly reviewing various experimental results on the pseudogap phenomena in underdoped cuprates. I argue that, taken together, all of these lead to a picture of singlet pairing above Tc. I then explore the idea that the pseudogap is a normal state precursor of the superconducting gap due to local, dynamic pairing correlations in a state without long range phase coherence. Early work...
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The innuence of correlations on the critical temperature and density for the onset of superruidity in nuclear matter is investigated within the scheme of Nozi eres and Schmitt-Rink 1]. For symmetric nuclear matter a smooth transition from Bose-Einstein condensation (BEC) of deuteron-like bound states at low densities and low temperatures to Bardeen-Cooper-Schrieeer (BCS) pair-ing at higher dens...
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Paring correlations in weakly bound halo nuclei He and Li are studied by using a threebody model with a density-dependent contact interaction. We investigate the spatial structure of two-neutron wave function in a Borromean nucleus Li. The behavior of the neutron pair at different densities is simulated by calculating the two-neutron wave function at several distances between the core nucleus L...
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We discuss several pairing-related phenomena in nuclear systems, ranging from superfluidity in neutron stars to the gradual breaking of pairs in finite nuclei. We describe recent experimental evidence that points to a relation between pairing and phase transitions (or transformations) in finite nuclear systems. A simple pairing interaction model is used in order to study and classify an eventua...
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ژورنال
عنوان ژورنال: Physical Review C
سال: 2008
ISSN: 0556-2813,1089-490X
DOI: 10.1103/physrevc.77.054308