TL;DR
This paper reviews how Skyrme model-based topological solitons can be used to describe neutron stars, focusing on their equation of state and mass-radius relations, and highlighting the models' ability to support high maximal masses.
Contribution
It introduces recent Skyrme models with BPS bounds applied to neutron star physics, emphasizing their potential to explain observed neutron star properties.
Findings
High maximal masses are supported by the models.
Skyrme-based models provide a viable equation of state for neutron stars.
Topological solitons effectively describe neutron star structure.
Abstract
The Skyrme model is a low energy effective field theory of strong interactions where nuclei and baryons appear as collective excitations of pionic degrees of freedom. In the last years, there has been a revival of Skyrme's ideas and new related models, some of them with BPS bounds (topological lower energy bounds), have been proposed. It is the aim of this paper to review how they can be applied to the study of neutron stars allowing for a description by means of topological solitons. We will focus on different aspects as the equation of state or the mass-radius relation, where we find that high maximal masses are supported.
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