arXiv 2111.080562021-11nucl-thastro-ph.HEcond-mat.quant-gas

Skyrme-based extrapolation for the static response of neutron matter

Mateusz Buraczynski, Samuel Martinello, Alexandros Gezerlis

备注：: 18 pages, 20 figures; v2 corresponds to published version
发表信息：: Phys. Rev. C 105, 025807 (2022)
DOI：: 10.1103/PhysRevC.105.025807

英文摘要：

The study of inhomogeneous neutron matter can provide insights into the structure of neutron stars as well as their dynamics in neutron-star mergers. In this work we tackle pure neutron matter in the presence of a periodic external field by considering a finite (but potentially large) number of particles placed in periodic boundary conditions. We start with the simpler setting of a noninteracting gas and then switch to a Skyrme-Hartree-Fock approach, showing static-response results for five distinct Skyrme parametrizations. We explain both the technical details of our computational approach, as well as the significance of these results as a general finite-size extrapolation scheme that may be used by ab initio practitioners to approach the static-response problem of neutron matter in the thermodynamic limit.

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