2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/35157The entropy of charged black hole is calculated by using the partition function evaluated at radial geodesics confined under horizons. We establish two quantum phase states inside the black hole and a transition between them.10 pages, 6 eps-figures, iopart class, acknowledgement extendedGeneral Relativity and Quantum CosmologyAstrophysicsHigh Energy Physics - TheoryRadial geodesics as a microscopic origin of black hole entropy. II: Features of Reissner--Nordstrom black holetext