Dynamic domain wall in charged dilaton black hole spacetimes

Xu, Wu-Long; Li, Ai-chen; Huang, Yongping

doi:10.48550/arxiv.1901.02155

Cited by 4 publications

(4 citation statements)

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“…Furthermore, the one-loop correction can be considered under the framework of finite-temperature field theory; in particular, the effects of temperature may be observable. In the near future, we might also use asymptotic safety to construct the inflationary term [46]; however, we are also interested in studying the dark matter constraint within the framework of brane worlds [47][48][49][50].…”

Section: Discussionmentioning

confidence: 99%

The running curvaton *

Liu¹,

Xu²

2020

Chinese Phys. C

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In this paper, we propose a homogeneous curvaton mechanism that operates during the preheating process and in which the effective mass is running (i.e., its potential consists of a coupling term and an exponential term whose contribution is subdominant thereto). This mechanism can be classified into either narrow resonance or broad resonance cases, with the spectral index of the curvaton consituting the deciding criteria. The inflationary potential is that of chaotic inflation (i.e., a quadratic potential), which could result in a smooth transition into the preheating process. The entropy perturbations are converted into curvature perturbations, which we validate using the formalism. By neglecting the exponential term's contribution to the curvaton potential, we calculate the power spectrum and the nonlinear non-Gaussian parameter . Our calculations analytically show that these two observables are independent of the inflaton potential. Finally, when the curvaton decays (and the inflaton field vanishes), the exponential potential approaches a constant value similar to that of the cosmological constant, which may play the role of dark energy.

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Section: Discussionmentioning

confidence: 99%

The running curvaton *

Liu¹,

Xu²

2020

Chinese Phys. C

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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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“…There are many complicated constructions based on other black holes, such as Refs. [55][56][57]. It would also be interesting to study the complexity for a generic FLRW background and to see if there are new features.…”

Section: Ementioning

confidence: 99%

Holographic complexity growth in an FLRW universe

Cai

et al. 2020

Phys. Rev. D

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In this paper, taking the large R limit and using the complexity-volume duality, we investigate the holographic complexity growth rate of a field state defined on the universe located at an asymptotical AdS boundary in Gauss-Bonnet gravity and massive gravity, respectively. For the Gauss-Bonnet gravity case, its growth behavior of the state mainly presents three kinds of contributions: one, as a finite term viewed as an interaction term, comes from a conserved charge, the second one is from the spatial volume of the universe and the third one relates the curvature of the horizon in the AdS Gauss-Bonnet black hole, where the Gauss-Bonnet effect plays a vital role on such growth rate. For massive gravity case, except the first divergent term still obeying the growth rate of the spatial volume of the Universe, its results reveal the more interesting novel phenomenons: beside the conserved charge E, the graviton mass term also provides its effect to the finite term ; and the third divergent term is determined by the spatial curvature of its horizon k and graviton mass effect; furthermore, the graviton mass effect can be completely responsible for the second divergent term as a new additional term saturating an area law. * Electronic address: wjpan˙zhgkxy@163.com

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Dynamic domain wall in charged dilaton black hole spacetimes

Cited by 4 publications

References 0 publications

The running curvaton *

The running curvaton *

The running curvaton

Holographic complexity growth in an FLRW universe

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