dorsal/arxiv
View SchemaPrecritical pair fluctuations and formation of a pseudogap in low-density nuclear matter
| Authors | A. Schnell, G. Roepke, P. Schuck |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9902038 |
| URL | https://arxiv.org/abs/nucl-th/9902038 |
| DOI | 10.1103/PhysRevLett.83.1926 |
| Journal | Phys.Rev.Lett. 83 (1999) 1926-1929 |
Abstract
Low-density nuclear matter at finite temperature is considered representing the strong coupling situation of a highly correlated fermion system. One-particle se lf-energies and the density of states in the vicinity of the pairing transition point are presented. Within the Green function approach model calculations are p erformed using the thermodynamic $T$ matrix in ladder approximation. As a main r esult the formation of a pseudogap in the level density near the critical temper ature of the pairing phase transition has been found. It is shown that compared to mean field, the picture of the onset of the pairing transition is essentially changed if correlations are taken into account.
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"abstract": "Low-density nuclear matter at finite temperature is considered representing\nthe strong coupling situation of a highly correlated fermion system.\nOne-particle se lf-energies and the density of states in the vicinity of the\npairing transition point are presented. Within the Green function approach\nmodel calculations are p erformed using the thermodynamic $T$ matrix in ladder\napproximation. As a main r esult the formation of a pseudogap in the level\ndensity near the critical temper ature of the pairing phase transition has been\nfound. It is shown that compared to mean field, the picture of the onset of the\npairing transition is essentially changed if correlations are taken into\naccount.",
"arxiv_id": "nucl-th/9902038",
"authors": [
"A. Schnell",
"G. Roepke",
"P. Schuck"
],
"categories": [
"nucl-th",
"cond-mat"
],
"doi": "10.1103/PhysRevLett.83.1926",
"journal_ref": "Phys.Rev.Lett. 83 (1999) 1926-1929",
"title": "Precritical pair fluctuations and formation of a pseudogap in low-density nuclear matter",
"url": "https://arxiv.org/abs/nucl-th/9902038"
},
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