2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/33622An angular momentum operator in loop quantum gravity is defined using spherically symmetric states as a non-rotating reference system. It can be diagonalized simultaneously with the area operator and has the familiar spectrum. The operator indicates how the quantum geometry of non-rotating isolated horizons can be generalized to rotating ones and how the recent computations of black hole entropy can be extended to rotating black holes.9 pagesGeneral Relativity and Quantum CosmologyHigh Energy Physics - Theorytext