Scalarized Einstein-Maxwell-scalar Black Holes in Anti-de Sitter Spacetime
arXiv:2102.04015
Abstract
In this paper, we study spontaneous scalarization of asymptotically anti-de Sitter charged black holes in the Einstein-Maxwell-scalar model with a non-minimal coupling between the scalar and Maxwell fields. In this model, Reissner-Nordström-AdS (RNAdS) black holes are scalar-free black hole solutions, and may induce scalarized black holes due to the presence of a tachyonic instability of the scalar field near the event horizon. For RNAdS and scalarized black hole solutions, we investigate the domain of existence, perturbative stability against spherical perturbations and phase structure. In a micro-canonical ensemble, scalarized solutions are always thermodynamically preferred over RNAdS black holes. However, the system has much rich phase structure and phase transitions in a canonical ensemble. In particular, we report a RNAdS BH/scalarized BH/RNAdS BH reentrant phase transition, which is composed of a zeroth-order phase transition and a second-order one.
v1: 14 pages, 3 figures; v2: 14 pages, 3 figures, references added
References in corpus (9)
- Spontaneously scalarised Kerr black holes
- Quasinormal modes of scalarized black holes in the Einstein-Maxwell-Scalar theory
- Thermodynamics of Einstein-Born-Infeld black holes with negative cosmological constant
- Black hole spontaneous scalarisation with a positive cosmological constant
- Onset of rotating scalarized black holes in Einstein-Chern-Simons-Scalar theory
- Scalarized black holes in the Einstein-Maxwell-scalar theory with a quasi-topological term
- Radial perturbations of the scalarized black holes in Einstein-Maxwell-conformally coupled scalar theory
- Spontaneous vectorization of electrically charged black holes
- Reissner-Nordström black holes supporting non-minimally coupled massive scalar field configurations