1999/02/17 by A. Schnell, Alexander Schnell, G. Röpke +2 · 3 citations
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Coupling (piping) #Critical point (mathematics) #Density matrix #Fermion #Materials science #Mean field theory #Nuclear matter #Nuclear physics #Pairing #Phase transition #Physics #Physics of Superconductivity and Magnetism #Pseudogap #Quantum #Quantum critical point #Quantum mechanics #Quantum phase transition #Quantum, superfluid, helium dynamics #Superconductivity #Thermodynamics #Transition point #cond-mat #nucl-th
paper · pdf · doi:10.1103/physrevlett.83.1926
published as Phys.Rev.Lett. 83 (1999) 1926-1929 · 4 pages, 2 figures, using psfig.sty (included)
arxiv created 1999/02/17 · openalex publication_date 1999/09/06 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Low-density nuclear matter at finite temperature is considered representing the strong coupling situation of a highly correlated fermion system. One-particle self-energies and the density of states in the vicinity of the pairing transition point are presented. Within the Green function approach, model calculations are performed using the thermodynamic T matrix in ladder approximation. As a main result the formation of a pseudogap in the level density near the critical temperature of the pairing phase transition has been found. It is shown that compared to mean-field approaches the scenario of the onset of the pairing transition is essentially changed if correlations are taken into account.