Quarkyonic matter state of neutron stars

This work extends our previous study of isospin symmetric quarkyonic matter to neutron which might be relevant the inner cores stars. The vector-isovector $\rho$ mesons are introduced model mainly account for density interactions, just like $\omega$ meson baryon interactions. modified Lagrangian still preserves approximate chiral symmetry could significantly broken at lower density. And new free parameters fixed by adopting experimental constraints on energy and its slope saturation Eventually, pressure, mass-radius relation, tidal deformability explored in advance While pressure well consistent with observational restrictions, relation is unable reproduce observed two solar mass PSR J0740+6620.