2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/16041A mixed classical-quantum density functional theory is used to calculate pair correlations and the free energy of a spin-polarized Hydrogen plasma. A transition to an atomic insulator phase is estimated to occur around r_s=2.5 at T=10^4K, and a pressure $P\approx0.5Mbar$. Spin polarization is imposed to prevent the formation of H_2 molecules.10 pages, 4 figuresStatistical MechanicsDisordered Systems and Neural Networkstext