https://doi.org/10.1140/epja/s10050-020-00096-x
Regular Article –Theoretical Physics
Neutron matter at the interface(s)
Static response and effective mass
Department of Physics, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
* e-mail: gezerlis@uoguelph.ca
Received:
30
May
2019
Accepted:
20
September
2019
Published online:
8
April
2020
Neutron matter is interesting both as an extension of terrestrial nuclear physics and due to its significance for the study of neutron stars. In this work, after some introductory comments on nuclear forces, nuclear ab initio theory, and nuclear phenomenology, we employ two techniques, Quantum Monte Carlo (QMC) and Energy Density Functionals, to practically handle an extended system composed of strongly interacting neutrons. We start by summarizing work on the static response of neutron matter, which considers the impact of external influences on the time-independent system. We then proceed to discuss new results of the energy of quasiparticle excitations in neutron matter, including QMC calculations with chiral or phenomenological nucleon–nucleon interactions. As part of this study, we carefully study the approach of our finite-number computations toward the infinite-system limit.
© Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature, 2020
