Linear stability analysis of evolving thin shell wormholes

Li, Ai-chen; Xu, Wu-Long; Zeng, Ding-fang

doi:10.1088/1475-7516/2019/03/016

Cited by 11 publications

(6 citation statements)

References 56 publications

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“…For the discussible works, when we know how the domain wall universe evolves in the charged AdS dilaton black hole background, the stability of universe is interested for us. Simplify, we don't think the fluctuation of bulk, while it just allows the domain wall to do perturbation [38], [39]. Then we also want to study the cosmologic anomaly.…”

Section: Conslusions and Discussionmentioning

confidence: 99%

Dynamics of domain wall in charged AdS dilaton black hole space–time

Huang

2019

Int. J. Mod. Phys. A

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For the n − 1 dimensional FRW domain wall universe induced by n dimensional charged dilaton black hole, its movement formula in the bulk can be rewrite as the expansion or collapsing of domain wall. By analysing, we found that in this static AdS space, the cosmologic behaviour of domain wall is particularly single. Even more surprising, it exists an anomaly that the domain wall has a motion area outside of horizon, in which it cannot be explained by our classical theory.

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Section: Conslusions and Discussionmentioning

confidence: 99%

Dynamics of domain wall in charged AdS dilaton black hole space–time

Huang

2019

Int. J. Mod. Phys. A

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“…Furthermore, the one loop correction can be taken account into considerations under the framework of finite temperature field theory, particularly the effects via temperature to observable. In a near future, one could also use the asymptotic safety to construct the inflationary part [16], even we are also interested in study of dark matter constraint via framework of brane world [47][48][49].…”

Section: Discussionmentioning

confidence: 99%

The running curvaton

Liu,

2019

Preprint

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According to the whole evolution of curvaton, we systematically investigate a broad new class of curvaton scenarios, in which the effective mass of curvaton is running (its potential consists of coupling part and exponential part). In this scenario, the coupling is between the curvaton and inflaton. Consequently, we adopt the narrow and broad resonance to study the production of curvation in terms of preheating, whose criteria comes via the spectral index of curvaton. In order to elaborate this scenario, we implement the δN formalism to calculate the local Non-Gaussianity parameter f N L and the power spectrum P ζ of curvaton. Remarkably, our calculation shows that these two observables are independent of potential of inflaton. Once the constraints are given, these two observables are consistent with the observations. As the curvaton almost decay (inflaton field vanishes), the exponential potential will be approaching a constant of order of cosmological constant, which could play a role of dark energy.

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“…Dias and Lemos studied stability in higher dimensional Einstein gravity [32]. Thin-shell wormholes can also be constructed in extended gravity models [33][34][35] (see [36][37][38][39][40][41][42][43][44][45][46] for recent progress on thin-shell wormhole and its applications).…”

Section: Thin-shell Wormholesmentioning

confidence: 99%

Thin-Shell Wormholes in Einstein and Einstein–Gauss–Bonnet Theories of Gravity

Kokubu

Harada

2020

Universe

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We review recent works on the possibility for eternal existence of thin-shell wormholes on Einstein and Einstein–Gauss–Bonnet gravity. We introduce thin-shell wormholes that are categorized into a class of traversable wormhole solutions. After that, we discuss stable thin-shell wormholes with negative-tension branes in Reissner–Nordström–(anti) de Sitter spacetimes in d-dimensional Einstein gravity. Imposing Z2 symmetry, we construct and classify traversable static thin-shell wormholes in spherical, planar and hyperbolic symmetries. It is found that the spherical wormholes are stable against spherically symmetric perturbations. It is also found that some classes of wormholes in planar and hyperbolic symmetries with a negative cosmological constant are stable against perturbations preserving symmetries. In most cases, stable wormholes are found with the appropriate combination of an electric charge and a negative cosmological constant. However, as special cases, there are stable wormholes even with a vanishing cosmological constant in spherical symmetry and with a vanishing electric charge in hyperbolic symmetry. Subsequently, the existence and dynamical stability of traversable thin-shell wormholes with electrically neutral negative-tension branes is discussed in Einstein–Gauss–Bonnet theory of gravitation. We consider radial perturbations against the shell for the solutions, which have the Z2 symmetry. The effect of the Gauss–Bonnet term on the stability depends on the spacetime symmetry.

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Linear stability analysis of evolving thin shell wormholes

Cited by 11 publications

References 56 publications

Dynamics of domain wall in charged AdS dilaton black hole space–time

Dynamics of domain wall in charged AdS dilaton black hole space–time

The running curvaton

Thin-Shell Wormholes in Einstein and Einstein–Gauss–Bonnet Theories of Gravity

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