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HK: Fachverband Physik der Hadronen und Kerne
HK 31: Struktur und Dynamik von Kernen
HK 31.7: Vortrag
Mittwoch, 19. März 2014, 18:30–18:45, HZ 4
To which densities is spin-polarized neutron matter a weakly interacting Fermi gas?⋆ — •Thomas Krüger1,2, Kai Hebeler1,2, and Achim Schwenk2,1 — 1Institut für Kernphysik, Technische Universität Darmstadt — 2ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum für Schwerionenforschung
We study spin-polarized neutron matter based on chiral NN, 3N and 4N interactions to next-to-next-to-next-to-leading order (N3LO) and provide theoretical uncertainties. Our results show that spin-polarized neutron matter at nuclear and subnuclear densities is remarkably close to a noninteracting Fermi gas. Implications of our findings for energy-density functionals and other applications are discussed.
⋆This work was supported by the DFG through Grant SFB 634, by the ERC Grant No. 307986 STRONGINT, and by the Helmholtz Alliance HA216/EMMI.