Results 31 to 40 of about 978,154 (293)
Viscous warm inflation: Hamilton–Jacobi formalism [PDF]
Astroparticle Physics, 2017 Using Hamilton-Jacobi formalism, The scenario of warm inflation with viscous pressure is considered. The formalism gives a way of computing the slow-rolling parameters without extra approximation, and it is well-known as a powerful method in cold inflation.
Akhtari, L. +3 more
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D-brane and exponential potentials inspire warm inflation and swampland conjecture
Nuclear Physics BThis research explores the rapid expansion period of the early universe by applying the Chaplygin gas model, an alternative cosmological framework, to analyze the dynamics of inflationary processes.
Shama Sadiq +6 more
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Journal of Cosmology and Astroparticle Physics, 2020 Slow-roll inflation is a successful paradigm. However we find that even a small coupling of the inflaton to other light fields can dramatically alter the dynamics and predictions of inflation. As an example, the inflaton can generically have an axion-like coupling to gauge bosons. Even relatively small couplings will automatically induce a thermal bath
Berghaus, Kim V. +2 more
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Looking inside the Swampland from Warm Inflation: Dissipative Effects in De Sitter Expansion
Universe, 2023 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
Physics Letters B, 2022 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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Physics Letters B, 2013 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]
Physical Review D, 1999 22 pages ...
Yokoyama, Jun'ichi, Linde, Andrei
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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
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WarmSPy: a numerical study of cosmological perturbations in warm inflation [PDF]
Journal of Cosmology and Astroparticle Physics, 2023 We present WarmSPy, a numerical code in Python designed to solve for the perturbations' equations in warm inflation models and compute the corresponding scalar power spectrum at CMB horizon crossing.
Gabriele Montefalcone +3 more
semanticscholar +1 more source