Results 11 to 20 of about 9,790 (281)
Universe, 2023 Warm inflation has normalized two ideas in cosmology, that in the early universe the initial primordial density perturbations generally could be of classical rather than quantum origin and that during inflation, particle production from interactions ...
Arjun Berera
exaly +6 more sources
Recent Developments in Warm Inflation
Universe, 2023 Warm inflation, its different particle physics model implementations, and the implications of dissipative particle production for its cosmology are reviewed.
Vahid Kamali +2 more
exaly +6 more sources
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
doaj +7 more sources
Warm Higgs–Starobinsky inflation [PDF]
European Physical Journal C: Particles and Fields, 2022 In this work, we investigate the Higgs–Starobinsky (HS) model in the context of warm inflation scenario. The dissipative parameter as a linear form of temperature of warm inflation is considered with strong and weak regimes.
Daris Samart +2 more
doaj +4 more sources
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
doaj +5 more sources
Physical Review D, 2023 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 the anisotropic warm inflation, the condition for making anisotropy survived is clarified.
Sugumi Kanno +2 more
exaly +5 more sources
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
doaj +4 more sources
Warm Inflation with Nonminimal Derivative Coupling [PDF]
Advances in High Energy Physics, 2014 We study the effects of the nonminimal derivative coupling on the dissipative dynamics of the warm inflation where the scalar field is nonminimally coupled to gravity via its kinetic term.
Kourosh Nozari, M. Shoukrani, N. Rashidi
doaj +3 more sources
On Warm Natural Inflation and Planck 2018 Constraints
Universe, 2023 We investigate natural inflation with non-minimal coupling to gravity, characterized either by a quadratic or a periodic term, within the warm inflation paradigm during the slow-roll stage, in both strong and weak dissipation limits; and show that, in ...
Mahmoud Alhallak +2 more
exaly +3 more sources
Nuclear Physics B, 2023 In this work, we study warm inflationary scenario based on a deformation of R2 gravity. We start considering Rp and assume p=2(1+δ) with δ≪1 so that we simply obtain warm R2 inflation when setting δ=0.
Apirak Payaka +2 more
doaj +4 more sources