Two models unifying warm inflation with dark matter and dark energy

Zhang, Xiao-Min; Li, Kai; Guo, Yi-Fu; Chu, Peng-Cheng; Li, He; Zhu, Jian-Yang

doi:10.1103/physrevd.104.103513

Cited by 5 publications

(3 citation statements)

References 49 publications

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“…Moreover, the gravitino problem was also considered in the context of WI [156,157]. More recently, a focus has been given to WI in topics such as dark energy [158][159][160][161][162][163], dark matter [70,[164][165][166][167], and in problems related to primoridial black hole formation and in providing additional sources of gravitational waves [168][169][170][171][172], just to cite a few of the many recent developments in the context of WI.…”

Section: Other Applications and Recent Results In Wimentioning

confidence: 99%

Recent Developments in Warm Inflation

2023

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Warm inflation, its different particle physics model implementations, and the implications of dissipative particle production for its cosmology are reviewed. First, we briefly present the background dynamics of warm inflation and contrast it with the cold inflation picture. An exposition of the space of parameters for different well-motivated potentials, which are ruled out, or severely constrained in the cold inflation scenario, but not necessarily in warm inflation, is provided. Next, the quantum field theory aspects in realizing explicit microscopic models for warm inflation are given. This includes the derivation of dissipation coefficients relevant in warm inflation for different particle field theory models. The dynamics of cosmological perturbations in warm inflation are then described. The general expression for the curvature scalar power spectrum is shown. We then discuss in detail the relevant regimes of warm inflation, the weak and strong dissipative regimes. We also discuss the results predicted in these regimes of warm inflation and how they are confronted with the observational data. We explain how the dissipative dynamics in warm inflation can address several long-standing issues related to (post-) inflationary cosmology. This includes recent discussions concerning the so-called swampland criteria and how warm inflation can belong to the landscape of string theory.

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Section: Other Applications and Recent Results In Wimentioning

confidence: 99%

Recent Developments in Warm Inflation

2023

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“…Moreover, the gravitino problem was also considered in the context of WI [156,157]. More recently, a focus has been given to WI in topics like dark energy [158][159][160][161][162][163], dark matter [70,[164][165][166][167] and in problems related to primoridial black hole formation and in providing additional sources of gravitational waves [168][169][170][171][172], just to cite a few of the many recent developments in the context of WI.…”

Section: B Other Applications and Recent Results In Wimentioning

confidence: 99%

Recent developments in warm inflation

Kamali¹,

Motaharfar²,

Ramos³

2023

Preprint

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Warm inflation, its different particle physics model implementations and the implications of dissipative particle production for its cosmology are reviewed. First, we briefly present the background dynamics of warm inflation and contrast it with the cold inflation picture. An exposition of the space of parameters for different well-motivated potentials, which are ruled out, or severely constrained in the cold inflation scenario, but not necessarily in warm inflation, is provided. Next, the quantum field theory aspects in realizing explicit microscopic models for warm inflation are given. This includes the derivation of dissipation coefficients relevant in warm inflation for different particle field theory models. The dynamics of cosmological perturbations in warm inflation are then described. The general expression for the curvature scalar power spectrum is shown. We then discuss in details the relevant regimes of warm inflation, the weak and strong dissipative regimes. We also discuss the results predicted in these regimes of warm inflation and how they are confronted with the observational data. We explain how the dissipative dynamics in warm inflation can address several long-standing issues related to (post-) inflationary cosmology. This includes recent discussions concerning the so-called swampland criteria and how warm inflation can belong to the landscape of string theory.

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“…In addition, there are some kinds of new and more effective warm inflationary theory proposed recently [11,12]. Warm inflationary scenario can have interesting features to construct an unifying picture of very early inflation with dark matter or dark energy [13][14][15]. From many different warm inflationary cases, it can be concluded that there are large differences among different theory of warm inflation perturbations, which incorporates strong and weak regimes [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Non-Gaussianity in the warm k-inflation

Shen¹,

Zhang²,

Li³

et al. 2023

Preprint

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This paper presents and investigates non-Gaussian perturbations for the warm k-inflation model that is driven by pure kinetic energy. The two complementary components of the overall non-Gaussianity are the three-point and four-point correlations. The intrinsic non-Gaussian component, denoted as the nonlinear parameter f int NL , is rooted in the three-point correlation for the inflaton field. Meanwhile, the δN part non-Gaussianity, denoted as f δN NL , is the contribution attributed to the four-point correlation function of the inflaton field. In this paper, the above two components in warm k-inflation are individually computed and analyzed. Then, comparisons and discussions between them are conducted, and the non-Gaussian theoretical results are compared with experimental observations to determine the range of model parameters within the allowable range of observation.

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Two models unifying warm inflation with dark matter and dark energy

Cited by 5 publications

References 49 publications

Recent Developments in Warm Inflation

Recent Developments in Warm Inflation

Recent developments in warm inflation

Non-Gaussianity in the warm k-inflation

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