Results 51 to 60 of about 771,516 (312)
Is warm inflation possible? [PDF]
Physical Review D, 1999 22 pages ...
Andrei Linde +2 more
openaire +3 more sources
Strengthening the de Sitter swampland conjecture in warm inflation
Journal of High Energy Physics, 2020 The de Sitter constraint on the space of effective scalar field theories consistent with superstring theory provides a lower bound on the slope of the potential of a scalar field which dominates the evolution of the Universe, e.g., a hypothetical ...
Robert Brandenberger +2 more
doaj +1 more source
Multi-field cold and warm inflation and the de Sitter swampland conjectures [PDF]
Journal of Cosmology and Astroparticle Physics, 2022 We discuss under which conditions multi-field cold and warm inflationary models with canonical kinetic energy terms are compatible with the swampland conjectures about the emergence of de Sitter solutions in string theory.
O. Bertolami, Paulo M. Sá
semanticscholar +1 more source
Warming up cold inflation [PDF]
Journal of Cosmology and Astroparticle Physics, 2021 Abstract The axion is a well-motivated candidate for the inflaton, as the radiative corrections that spoil many single-field models are avoided by virtue of its shift symmetry. However, axions generically couple to gauge sectors. As the axion slow-rolls during inflation, this coupling can cause the production of a non-diluting thermal ...
Saarik Kalia +2 more
openaire +4 more sources
On the consistency of warm inflation [PDF]
Journal of Cosmology and Astroparticle Physics, 2008 7 pages, ReVTeX.
Moss IG, Xiong C
openaire +4 more sources
Warm-assisted natural inflation [PDF]
Journal of Cosmology and Astroparticle Physics, 2021 Abstract We consider natural inflation in a warm inflation framework with a temperature-dependent dissipative coefficient Γ∝ T3. Natural inflation can be compatible with the Planck 2018 results with such warm assistance. With no a priori assumptions on the dissipative effect's magnitude, we find that the Planck results prefer a weak ...
Yakefu Reyimuaji, Xinyi Zhang
openaire +3 more sources
Physical Review Letters, 1995 11 pages, 2 figures (In press Physical Review Letters 1995)
openaire +3 more sources
Scalar Induced Gravitational Waves from Warm Inflation [PDF]
Social Science Research Network, 2022 Stochastic gravitational waves can be induced from the primordial curvature perturbations generated during inflation, through scalar-tensor mode coupling at the second order of cosmological perturbation theory.
R. Arya, A. Mishra
semanticscholar +1 more source
Physics Letters B, 2012 In warm inflation models there is the requirement of generating large dissipative couplings of the inflaton with radiation, while at the same time, not de-stabilising the flatness of the inflaton potential due to radiative corrections. One way to achieve this without fine tuning unrelated couplings is by supersymmetry. In this paper we show that if the
Hiranmaya Mishra +2 more
openaire +3 more sources