Time-dependent nuclear energy-density functional theory toolkit for neutron star crust: Dynamics of a nucleus in a neutron superfluid

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27.03.2024 18:25

A nucleus accelerating to the right through a neutron superfluid medium (a), and a schematic picture of the geometrical structures in the inner crust of a neutron star (b). Fig. taken from arXiv:2403.17499.

D. Pȩcak, A. Zdanowicz, N. Chamel, P. Magierski, G. Wlazłowski,
Time-dependent nuclear energy-density functional theory toolkit for neutron star crust: Dynamics of a nucleus in a neutron superfluid,
Phys. Rev. X 14, 041054 (2024) [arXiv:2403.17499].
Data underlying this study are accessible via Zenodo repository, record 10724934.

In this article, we present a new numerical tool designed to probe the dense layers of neutron star crusts: W-BSk Toolkit. It is based on the Time-Dependent Hartree-Fock-Bogoliubov theory with generalized Skyrme nuclear energy density functionals, such as the Brussels-Montreal ones. We use it to study the time evolution of a nucleus accelerating through a superfluid neutron medium in the inner crust of a neutron star. It is the first application of W-BSk Toolkit for matter consisting of protons and neutrons.