Does fractal universe favour warm inflation: Observational support?

Bose, Akash; Chakraborty, Subenoy

doi:10.1016/j.nuclphysb.2022.115767

Cited by 4 publications

(2 citation statements)

References 45 publications

(41 reference statements)

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“…Moreover, there are several papers in the literature which studied WI using some quasi-de Sitter form of scale factor, e.g., intermediate and logamediate inflation, and other non-canonical versions of field theory, e.g., tachyonic fields, in the high dissipative regime [117][118][119][120][121][122][123][124][125], while there have been also many studies involving different forms of inflaton potentials and in other interesting contexts [79,111,[126][127][128][129][130][131][132][133][134][135][136][137][138][139][140][141][142][143][144].…”

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, there are several papers in the literature which studied WI using some quasi-de Sitter form of scale factor, e.g., intermediate and logamediate inflation, and other noncanonical versions of field theory, e.g., tachyonic fields, in the high dissipative regime [117][118][119][120][121][122][123][124][125], while there have been also many studies involving different forms of inflaton potentials and in other interesting contexts [79,111,[126][127][128][129][130][131][132][133][134][135][136][137][138][139][140][141][142][143][144].…”

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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The paradigm of quantum cosmology through Dunkl fractional Laplacian operators and fractal dimensions

El-Nabulsi¹,

Anukool²

2023

Chaos, Solitons & Fractals

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Does fractal universe favour warm inflation: Observational support?

Cited by 4 publications

References 45 publications

Recent Developments in Warm Inflation

Recent Developments in Warm Inflation

Recent developments in warm inflation

The paradigm of quantum cosmology through Dunkl fractional Laplacian operators and fractal dimensions

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