Identifying universality in warm inflation
Sign Up to like & getrecommendations! 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
Sign Up to like & getrecommendations! 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
Noncanonical warm inflation with nonminimal derivative coupling
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2025/02/013
Abstract: This study extended noncanonical warm inflation to the nonminimal derivative coupling scenario. The fundamental equations, including the evolution equations and the slow roll equations of this new framework, were derived. The enlarged damping term, which… read more here.
Keywords: warm inflation; noncanonical warm; derivative coupling; nonminimal derivative ... See more keywords
WI2easy: warm inflation dynamics made easy
Sign Up to like & getrecommendations! Published in 2025 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2025/09/014
Abstract: We present WI2easy, a Mathematica package for high-precision analysis of warm inflation (WI) dynamics, enabling efficient computation of both background evolution and curvature perturbations. Designed with a user-friendly interface, the tool supports a broad spectrum… read more here.
Keywords: wi2easy warm; warm inflation; cosmology; dynamics made ... See more keywords
No warm inflation from a vanilla axion
Sign Up to like & getrecommendations! Published in 2024 at "Physical Review D"
DOI: 10.1103/kp15-3s1c
Abstract: At finite temperature, the coupling of an axion to non-Abelian gauge fields causes dissipation due to sphaleron heating. This mechanism has been considered as ideal for realizing warm inflation, since it can lead to large… read more here.
Keywords: warm inflation; inflation; axion; inflation vanilla ... See more keywords
Non-Gaussianity in a general kind noncanonical warm inflation
Sign Up to like & getrecommendations! 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
Sign Up to like & getrecommendations! 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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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
Reassessing constant-roll warm inflation
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DOI: 10.1103/physrevd.110.063536
Abstract: Departing from standard slow-roll conditions is one way of putting the inflationary paradigm to test, and constraining the dynamics of the inflaton field with a constant-rate of roll of the inflaton field, a.k.a. the constant-roll… read more here.
Keywords: constant roll; roll; warm inflation; slow roll ... See more keywords
Dynamic analysis of noncanonical warm inflation
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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
Sign Up to like & getrecommendations! 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