Precritical Pair Fluctuations and Formation of a Pseudogap in Low-Density Nuclear Matter
Precritical Pair Fluctuations and Formation of a Pseudogap in Low-Density Nuclear Matter
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 …