1. Phase diagram of dilute nuclear matter: Unconventional pairing and the BCS-BEC crossover.
- Author
-
Stein, Martin, Huang, Xu-Guang, Sedrakian, Armen, and Clark, John W.
- Subjects
- *
PHASE diagrams , *NUCLEAR matter , *ISOBARIC spin , *TEMPERATURE effect , *SUPERFLUIDITY , *BOSE-Einstein condensation - Abstract
We report on a comprehensive study of the phase structure of cold, dilute nuclear matter featuring a ³S1-³D1 condensate at nonzero isospin asymmetry, within wide ranges of temperatures and densities. We find a rich phase diagram comprising three superfluid phases, namely, a Larkin-Ovchinnikov-Fulde-Ferrell phase, the ordinary BCS phase, and a heterogeneous, phase-separated BCS phase, with associated crossovers from the latter two phases to a homogeneous or phase-separated Bose-Einstein condensate of deuterons. The phase diagram contains two tricritical points (one a Lifshitz point), which may degenerate into a single tetracritical point for some degree of isospin asymmetry. [ABSTRACT FROM AUTHOR]
- Published
- 2012
- Full Text
- View/download PDF