SMuK 2023 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 19: Nuclear Astrophysics II
HK 19.3: Vortrag
Dienstag, 21. März 2023, 17:45–18:00, SCH/A419
Gaussian processes for the nuclear equation of state — •Hannah Göttling1,2, Jonas Keller1,2, Kai Hebeler1,2,3, and Achim Schwenk1,2,3 — 1Technische Universität Darmstadt, Department of Physics — 2ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum für Schwerionenforschung GmbH — 3Max-Planck-Institut für Kernphysik, Heidelberg
We use Gaussian processes as a non-parametric emulator for the nuclear equation of state based on chiral effective field theory interactions and to provide statistical uncertainties based on the effective field theory truncation. Moreover, the Gaussian process enables us to calculate observables that are obtained via thermodynamic derivatives. We use this to calculate properties relevant to neutron stars and properties of symmetric nuclear matter.
Funded by the ERC Grant Agreement No. 101020842 and by the DFG – Project-ID 279384907 – SFB 1245.