Aros, R.2023-03-272023-03-272006-01Physical Review D - Particles, Fields, Gravitation and Cosmology, Volume 73, Issue 215, January 2006, Article number 0240041550-7998https://repositorio.unab.cl/xmlui/handle/ria/47925Indexación: Scopus.In this work two different boundary conditions for first order gravity, corresponding to a null and a negative cosmological constant, respectively, are studied. Both boundary conditions allow one to obtain the standard black hole thermodynamics. Furthermore, both boundary conditions define a canonical ensemble. Additionally the quasilocal energy definition is obtained for the null cosmological constant case.enSupergravityGravitationBlack HolesBoundary conditions in first order gravity: Hamiltonian and ensembleArtÃculoAttribution 4.0 International (CC BY 4.0)10.1103/PhysRevD.73.024004