What supports the core against further collapse once it reaches nuclear density ($10^{14}$ g/cm$^3$)?

Answer

Neutron degeneracy pressure and the strong nuclear force

The collapse halts when the core reaches incredibly high density, where neutron degeneracy pressure and the influence of the strong nuclear force make the core immensely stiff.

What supports the core against further collapse once it reaches nuclear density ($10^{14}$ g/cm$^3$)?
astronomystarsupernovatriggercore collapse