Scalarized Einstein–Maxwell-scalar black holes in a cavity

Yao, Feiyu

doi:10.1140/epjc/s10052-021-09793-3

Cited by 12 publications

(5 citation statements)

References 67 publications

(78 reference statements)

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“…[36], the scalarization of a charged black holes in Einstein-Maxwellscalar models with an exponential coupling function and a Maxwell invariant term I = F ab F ab are taken into consideration, in which the fully non-linear evolution of spontaneous scalarization of a spherically symmetric black hole is also presented. Later, spontaneous scalarization in Einstein-Maxwell-scalar theories was extended to various situations, such as the cases with other coupling functions [37][38][39], reflecting stars without horizon [40], Einstein-Born-Infeldscalar theory [41], Einstein-Maxwell-scalar theory with a quasitopological term [42], higher-dimensional scenario [43], dyonic black hole with magnetic charges [44], and nonasymptotically flat black holes [45][46][47][48]. Furthermore, the linear stability and quasinormal modes of scalarized black holes [49][50][51][52][53], analytic treatments of spontaneous scalarization [54][55][56], and dynamical scalarization [57][58][59][60][61] were also widely discussed in Einstein-Maxwell-scalar theories.…”

Section: (): V-volmentioning

confidence: 99%

Spontaneous scalarization of dyonic black hole in Einstein–Maxwell-scalar theory

Jiang

Tan

2023

Eur. Phys. J. C

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In this paper, we study the scalarization of the static and spherically symmetric dyonic Reissner–Nordstrom (RN) black holes in the Einstein–Maxwell-scalar theory where the scalar field is coupled to an electromagnetic Chern–Simons term. When both electric and magnetic charges are present, there exists an unstable region of parametric space for the dyonic RN black holes where the scalarization of black holes should occur. That is to say, mixing electric and magnetic charges can reduce the scalarization in this theory. Firstly, we calculate the perturbation field equations under the dyonic RN black hole background and obtain the corresponding asymptotic-flat perturbation solutions, which are the bifurcation points at the dyonic RN branch. The results show that the perturbation scalarization demands a lower bound of the coupling constant. Then, we calculate the scalarized black hole solutions bifurcating from the dyonic RN solutions. We find that there exist a lot of discrete branches of the scalarized solutions. Contract to the dyonic RN solutions, these scalarized solutions can be overcharged and their mass could even approach zero. After illustrating the behavior of the entropy for the scalarized black holes, we demonstrate that the scalarized configurations might be thermodynamically more stable than GR configurations. Moreover, we also show that for each scalarized branch, the black hole cannot reach the extremal limit with vanishing temperature.

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Section: (): V-volmentioning

confidence: 99%

Spontaneous scalarization of dyonic black hole in Einstein–Maxwell-scalar theory

Jiang

Tan

2023

Eur. Phys. J. C

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“…The second choice of the extended phase space is to enclose the black hole in a cavity in asymptotically flat space, on the wall of which the metric is fixed (i.e., with the Dirichlet boundary condition). [ 7–42 ] In this way, the wall acts as a reflecting boundary against the Hawking radiation and thus stabilizes the black hole. Hence, the function of the cavity is similar to the AdS space, as the gravitational potentials increase at large distances in both of these two cases, only with different boundary conditions.…”

Section: Introductionmentioning

confidence: 99%

The Joule–Thomson and Joule–Thomson‐Like Effects of the Black Holes in a Cavity

2023

Fortschritte der Physik

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When a black hole is enclosed in a cavity in asymptotically flat space, an effective volume can be introduced, and an effective pressure can be further defined as its conjugate variable. By this means, an extended phase space is constructed in a cavity, which resembles that in the anti‐de Sitter (AdS) space in many aspects. However, there are still some notable dissimilarities simultaneously. In this work, the Joule–Thomson (JT) effect of the black holes, widely discussed in the AdS space as an isenthalpic (constant‐mass) process, is shown to only have cooling region in a cavity. On the contrary, in a constant‐thermal‐energy process (the JT‐like effect), there is only heating region in a cavity. Altogether, different from the AdS case, there is no inversion temperature or inversion curve in a cavity. Our work reveals the subtle discrepancy between the two different extended phase spaces that is sensitive to the specific boundary conditions.

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“…Moreover, stability and quasinormal modes of scalarized black holes are also investigated by several studies [17][18][19][20]. More interestingly, spontaneous scalarization in the EMS theory in asymptotically de Sitter (dS) [21], anti de Sitter (AdS) [22] and in a cavity [23] are proposed and studied.…”

Section: Introductionmentioning

confidence: 99%

Scalarization of planar anti de Sitter charged black holes in Einstein-Maxwell-Scalar theory

Promsiri¹,

Tangphati²,

Hirunsirisawat³

et al. 2023

Preprint

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We construct scalarized planar charged black holes in Einstein-Maxwell-Scalar (EMS) theory with a presence of negative cosmological constant. Domain of existence of black hole solutions are given in term of non-minimally coupling constant α. Perturbative stability of scalarized black hole is investigated. Thermodynamic properties of scalarized planar solution are discussed. We find that scalarized planar charged AdS black holes are thermodynamically preferred over scalar-free solutions in grand canonical and canonical ensembles. The transition between scalarfree solutions and scalarized solutions are found to be the thermal second order phase transition. The transition of these solutions shares some similar features with conductor-supercondutor phase transition.

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Scalarized Einstein–Maxwell-scalar black holes in a cavity

Cited by 12 publications

References 67 publications

Spontaneous scalarization of dyonic black hole in Einstein–Maxwell-scalar theory

Spontaneous scalarization of dyonic black hole in Einstein–Maxwell-scalar theory

The Joule–Thomson and Joule–Thomson‐Like Effects of the Black Holes in a Cavity

Scalarization of planar anti de Sitter charged black holes in Einstein-Maxwell-Scalar theory

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