Results 11 to 20 of about 771,516 (312)
Universe, 2016 I show here that there are some interesting differences between the predictions of warm and cold inflation models focusing in particular upon the scalar spectral index n s and the tensor-to-scalar ratio r.
Øyvind Grøn
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Monomial warm inflation revisited [PDF]
Journal of Cosmology and Astroparticle Physics, 2023 We revisit the idea that the inflaton may have dissipated part of its energy into a thermal bath during inflation, considering monomial inflationary potentials and three different forms of dissipation rate.
G. Ballesteros +2 more
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Warm quintessential inflation [PDF]
Physics Letters B, 2019 We introduce warm quintessential inflation and study it in the weak dissipative regime. We consider the original quintessential inflation model, which approximates quartic chaotic inflation at early times and thawing quartic inverse-power-law ...
Konstantinos Dimopoulos +1 more
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Reconstructing warm inflation [PDF]
European Physical Journal C: Particles and Fields, 2018 The reconstruction of a warm inflationary universe model from the scalar spectral index $$n_S(N)$$ nS(N) and the tensor to scalar ratio r(N) as a function of the number of e-folds N is studied.
Ramón Herrera
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Anisotropic warm inflation [PDF]
Physical Review D, 2022 Anisotropic inflation is a model succeeded in explaining statistical anisotropy. Warm inflation is a model succeeded in providing a mechanism of reheating during inflation. We study anisotropic warm inflation focusing on the cosmic no-hair conjecture. In
S. Kanno +3 more
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Shapes of non-Gaussianity in warm inflation [PDF]
Journal of Cosmology and Astroparticle Physics, 2023 Sphaleron heating has been recently proposed as a mechanism to realize warm inflation when inflaton is an axion coupled to pure Yang-Mills. As a result of heating, there is a friction coefficient γ ∝ T 3 in the equation of motion for the inflaton, and a ...
Mehrdad Mirbabayi, Andrei Gruzinov
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Theoretical and observational prescription of warm-inflation in FLRW universe with torsion
European Physical Journal C: Particles and Fields, 2023 The paper deals with Warm Inflationary scenario in FLRW with torsion both from theoretical and observational point of view. In the background of flat FLRW model the Hubble parameter is found to be proportional to the torsion function and warm inflation ...
Madhukrishna Chakraborty +3 more
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Primordial black-hole dark matter via warm natural inflation
Physics Letters B, 2022 We report on a study of the natural warm inflationary paradigm (WNI). We show two important new results arise in this model. One is that the observational constraints on the primordial power spectrum from the cosmic microwave background (CMB) can be ...
Miguel Correa +3 more
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Warm DBI inflation with constant sound speed [PDF]
European Physical Journal C: Particles and Fields, 2019 We study inflation with the Dirac–Born–Infeld (DBI) noncanonical scalar field in both the cold and warm scenarios. We consider the Anti-de Sitter warp factor $$f(\phi )=f_{0}/\phi ^{4}$$ f(ϕ)=f0/ϕ4 for the DBI inflation and check viability of the quartic
S. Rasouli +3 more
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Erratum: Minimal warm inflation [PDF]
Journal of Cosmology and Astroparticle Physics, 2023 We correct several minor mistakes in equations in section 4.1 and update the viable parameter range of the model quoted in section 4.2 accordingly.
Kim V. Berghaus +2 more
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