LAUSR

Identifying universality in warm inflation

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0 Published in 2018 at "Journal of Cosmology and Astroparticle Physics"

DOI: 10.1088/1475-7516/2018/07/021

Abstract: Ideas borrowed from renormalization group are applied to warm inflation to characterize the inflationary epoch in terms of flows away from the de Sitter regime. In this framework different models of inflation fall into universality… read more here.

Keywords: warm inflation; cosmology; universality warm; identifying universality ... See more keywords

Minimal warm inflation with complete medium response

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0 Published in 2021 at "Journal of Cosmology and Astroparticle Physics"

DOI: 10.1088/1475-7516/2021/06/031

Abstract: If a homogeneous field evolves within a medium, with the latter gradually picking up a temperature, then the friction felt by the field depends on how its evolution rate compares with medium time scales. We… read more here.

Keywords: complete medium; warm inflation; medium; minimal warm ... See more keywords

Non-Gaussianity in a general kind noncanonical warm inflation

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0 Published in 2019 at "Physical Review D"

DOI: 10.1103/physrevd.100.123521

Abstract: The general kind noncanonical warm inflation is introduced and its total non-Gaussianity of perturbation on uniform energy density hypersurfaces is studied. The total non-Gaussianity contains two complementary parts: the three- and the four-point correlations. The… read more here.

Keywords: non gaussianity; gaussianity; warm inflation; noncanonical warm ... See more keywords

Spectrum of tensor perturbations in warm inflation

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1 Published in 2021 at "Physical Review D"

DOI: 10.1103/physrevd.104.083542

Abstract: We compute the spectrum of tensor perturbations in warm inflation. We find that the spectrum, besides the standard component ∝ H/M P associated to the amplification of the tensor vacuum fluctuations, acquires a component ∝… read more here.

Keywords: spectrum tensor; tensor; perturbations warm; warm inflation ... See more keywords

Two models unifying warm inflation with dark matter and dark energy

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1 Published in 2021 at "Physical Review D"

DOI: 10.1103/physrevd.104.103513

Abstract: Two models that unify warm inflation with dark matter and dark energy are proposed. In the models, a single scalar field is responsible for the early expansion of the universe through the process of dissipative… read more here.

Keywords: dark matter; warm inflation; matter dark; dark energy ... See more keywords

Dynamic analysis of noncanonical warm inflation

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0 Published in 2018 at "Physical Review D"

DOI: 10.1103/physrevd.98.043510

Abstract: We study and analyze the dynamic properties of both canonical and noncanonical warm inflationary models with dissipative effects. We consider different models of canonical warm inflation with different dissipative coefficients and provide that the behaviour… read more here.

Keywords: warm inflation; noncanonical warm; model; dynamic analysis ... See more keywords

Warm inflation as a way out of the swampland

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1 Published in 2019 at "Physical Review D"

DOI: 10.1103/physrevd.99.063513

Abstract: We discuss how dissipative effects and the presence of a thermal radiation bath, which are inherent characteristics of the warm inflation dynamics, can evade the recently proposed Swampland conjectures. Different forms of dissipation terms, motivated… read more here.

Keywords: warm inflation; inflation way; way swampland; inflation ... See more keywords

Pre-inflation dynamical behavior of warm inflation in loop quantum cosmology

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0 Published in 2020 at "Modern Physics Letters A"

DOI: 10.1142/s0217732320502934

Abstract: Considering a constant dissipative coefficient Γ, the pre-inflation dynamical behaviors of warm inflation in the loop quantum cosmology scenario are discussed. We consider three sets of initial con... read more here.

Keywords: warm inflation; pre inflation; inflation dynamical; cosmology ... See more keywords