Chew, Xiao YanYeom, Dong-hanBlázquez Salcedo, José Luis2026-04-102026-04-102023-08-08Chew, Xiao Yan, et al. «Properties of Scalar Hairy Black Holes and Scalarons with Asymmetric Potential». Physical Review D, vol. 108, n.o 4, agosto de 2023, p. 044020. DOI.org (Crossref), https://doi.org/10.1103/PhysRevD.108.0440202470-001010.1103/PhysRevD.108.044020https://hdl.handle.net/20.500.14352/134644© 2023 American Physical Society. Grant No. 2021R1C1C1008622, Grant No. 2021R1A4A5031460.This study explores the properties of black holes and scalarons in Einstein gravity when it is minimally coupled to a scalar field 0 with an asymmetric potential V(0), constructed in [A. Corichi et al., Phys. Rev. D 73, 084002 (2006)] a few decades ago. V(0) has been applied in cosmology to describe the quantum tunneling process from the false vacuum to the true vacuum and contains a local maximum, a local minimum (false vacuum), and a global minimum (true vacuum). We focus on the asymptotically flat solutions, which can be constructed by appropriately fixing the local minimum of V. A branch of hairy black hole solutions emerges from the Schwarzschild black hole, and we study the domain of existence of such configurations. They can reach to a particlelike solution in the small horizon limit, i.e., the scalarons. We study the stability of black holes and scalarons, showing that all are unstable under radial perturbations.engjournal article2470-0029https//doi.org/10.1103/PhysRevD.108.044020https://journals.aps.org/prd/abstract/10.1103/PhysRevD.108.044020https://arxiv.org/abs/2210.01313open access52Classical black holesGeneral relativityAstronomía (Física)21 Astronomía y Astrofísica