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Looking inside the Swampland from Warm Inflation: Dissipative Effects in De Sitter Expansion
This paper reviews the theoretical and phenomenological implications of the swampland conjectures from the perspective of inflationary cosmology, focusing on warm inflation.
Arjun Berera, Jaime Calderón-Figueroa
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Revisiting Barrow's graduated inflationary universe: A warm perspective
It is presumed that thermal fluctuations present during inflationary epoch can make inflaton scalar field to interact with other fields resulting in the existence of a thermal component during the inflationary period.
Subhra Bhattacharya
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In this paper we introduce the "warm vector inflation" scenario. In warm inflation scenario radiation is produced during the inflation epoch and reheating is avoided. Slow-roll and perturbation parameters of this model are presented. We develop our model using intermediate inflation model.
Setare, M. R., Kamali, V.
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Is warm inflation possible? [PDF]
22 pages ...
Yokoyama, Jun'ichi, Linde, Andrei
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Strengthening the de Sitter swampland conjecture in warm inflation
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
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23 pages, 4 figures, Accepted for publication in ...
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Intermediate class of warm pseudoscalar inflation
High dissipative regime of warm pseudoscalar inflation model (Kamali in Phys Rev D 100:043520, arXiv:1901.01897 [gr-qc], 2019) with an approximately constant value of dissipation parameter Q is studied.
Saeid Ebrahimi, Vahid Kamali, Asma Alaei
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Warm-assisted natural inflation [PDF]
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 ...
Reyimuaji, Yakefu, Zhang, Xinyi
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Warming up cold inflation [PDF]
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 ...
DeRocco, William +2 more
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