https://doi.org/10.1007/s100510050262
Liquid-gas binodal anomaly for systems with pairing transition
1
Fachbereich Physik, Universität Rostock,
Universitätsplatz 3, 18051 Rostock, Germany
2
Alfred-Wegener-Institut für Polar- und Meeresforschung,
27568 Bremerhaven, Germany
Corresponding author: a holger@darss.mpg.uni-rostock.de
Received:
14
October
1997
Accepted:
2
December
1997
Published online: 15 April 1998
For fermionic model systems with a separable interaction the BCS equations are solved self-consistently. In addition, the possibility of a liquid-gas phase transition is considered by inspecting thermodynamic stability. Different examples of temperature-density phase diagrams are given depending on the parameters of a model interaction. In particular, a liquid-gas binodal anomaly is found due to the superposition of the superfluid and the liquid-gas phase transition.
PACS: 05.30.Fk – Fermion systems and electron gas / 64.70.Fx – Liquid-vapor transitions / 67.20.+k – Quantum effects on the structure and dynamics of nondegenerate fluids (e.g., normal phase liquid 4He)
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 1998
