Results 61 to 70 of about 896,961 (328)
A generalized method of constraining Warm Inflation with CMB data [PDF]
Journal of Cosmology and Astroparticle PhysicsA thorough MCMC analysis of any inflationary model against the current cosmological data is essential for assessing the validity of such a model as a viable inflationary model.
Umang Kumar, Suratna Das
semanticscholar +1 more source
Nonminimally-coupled warm Higgs inflation: Metric vs. Palatini formulations
Nuclear Physics B, 2023 In this work, we study the non-minimally-coupled Higgs model in the context of warm inflation scenario on both metric and Palatini approaches. We particularly consider a dissipation parameter of the form Γ=CTT with CT being a coupling parameter and focus
Thammarong Eadkhong +3 more
doaj +1 more source
Temperature in warm inflation in non minimal kinetic coupling model [PDF]
, 2015 Warm inflation in the non minimal derivative coupling model with a general dissipation coefficient is considered. We investigate conditions for the existence of the slow roll approximation and study cosmological perturbations. The spectral index, and the
Goodarzi, Parviz, Sadjadi, H. Mohseni
core +2 more sources
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
doaj +1 more source
Does fractal universe favour warm inflation: Observational support?
Nuclear Physics B, 2022 The present work examines the possibility of warm inflationary paradigm in the modified gravity theory with fractal geometry. By choosing the normal fluid as radiation fluid and the effective fluid (with the extra term in modified field equation) as the ...
Akash Bose, Subenoy Chakraborty
doaj +1 more source
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
doaj +1 more source
Warm inflation dynamics in the low temperature regime [PDF]
, 2006 Warm inflation scenarios are studied with the dissipative coefficient computed in the equilibrium approximation. Use is made of the analytical expressions available in the low temperature regime with focus on the possibility of achieving strong ...
Arjun Berera, Mar Bastero-Gil
core +2 more sources
Warm $$\beta $$ β -exponential inflation and the swampland conjectures
European Physical Journal C: Particles and Fields, 2023 We investigate theoretical and observational aspects of a warm inflation scenario driven by the $$\beta $$ β -exponential potential, which generalizes the well-known power law inflation.
F. B. M. dos Santos +4 more
doaj +1 more source
Warm Little Inflaton becomes dark energy
Physics Letters B, 2019 We present a model where the inflaton field behaves like quintessence at late times, generating the present phase of accelerated expansion. This is achieved within the framework of warm inflation, in particular the Warm Little Inflaton scenario, where ...
João G. Rosa, Luís B. Ventura
doaj +1 more source
Erratum: Minimal warm inflation
Journal of Cosmology and Astroparticle Physics, 2023 Abstract 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
openaire +1 more source