# Lee-Yang–inspired functional with a density-dependent neutron-neutron scattering length

@article{Grasso2017LeeYanginspiredFW, title={Lee-Yang–inspired functional with a density-dependent neutron-neutron scattering length}, author={M. Grasso and Denis Lacroix and C. J. Yang}, journal={Physical Review C}, year={2017}, volume={95}, pages={054327} }

Inspired by the low--density Lee-Yang expansion for the energy of a dilute Fermi gas of density $\rho$ and momentum $k_F$, we introduce here a Skyrme--type functional that contains only $s$-wave terms and provides, at the mean--field level, (i) a satisfactory equation of state for neutron matter from extremely low densities up to densities close to the equilibrium point, and (ii) a good--quality equation of state for symmetric matter at density scales around the saturation point. This is…

## 11 Citations

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Lee-Yang–inspired energy-density functional including contributions from
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An extension of the ELYO functional is presented which also accounts for the first $p$-wave term appearing in the low-density expansion from which it derives, and predicts values which are qualitatively consistent with recent observations.