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Non-Minimal Warm Inflation and Perturbations on the Warped DGP Brane with Modified Induced Gravity [PDF]

, 2010
We construct a warm inflation model with inflaton field non-minimally coupled to induced gravity on a warped DGP brane. We incorporate possible modification of the induced gravity on the brane in the spirit of $f(R)$-gravity.
A. Berera, A. Berera, A. Berera, A. Berera, A. Berera, A. Berera, A. Berera, A. Berera, A. Berera, A. Berera, A. Liddle, A. Lue, A.A. Starobinsky, A.N. Taylor, A.R. Liddle, B. Chen, B. Fazlpour, B. Gumjudpai, B.A. Bassett, B.A. Bassett, C. Gordon, C. Gordon, C. Rham de, D. Langlois, D. Langlois, D. Polarski, D. Wands, E. Komatsu, E. Papantonopoulos, G. Cognola, G. Cognola, G. Dvali, G.W. Gibbons, H. Kodama, H. Zhang, H.P. De Oliveira, H.P. Oliveira de, I.G. Moss, J. Bardeen, J.E. Lidsey, J.M. Romero, J.W. York, K. Bhattacharya, K. Koyama, K. Koyama, K. Nozari, K. Nozari, Kourosh Nozari, L. Randall, L.M.H. Hall, L.M.H. Hall, M. Bellini, M. Bellini, M. Bouhamdi-Lopez, M. Shoukrani, M. Szydlowski, M.A. Cid, Maeda, N. Bartolo, N. Bartolo, N. Bartolo, R. Dick, R.-G. Cai, R.H. Brandenberger, R.H. Brandenberger, S. del Campo, S. Gupta, S. Gupta, S. Nojiri, S. Nojiri, S. Nojiri, S. Nojiri, V. Faraoni, V. Faraoni, V.F. Mukhanov, Y. Shtanov, Y.-Z. Ma   +76 more
core   +2 more sources

Dark Matter freeze-in during warm inflation and the seesaw mechanism [PDF]

Journal of High Energy Physics
A compelling way to address the inflationary period is via the warm inflation scenario, where the interaction of the inflaton field with other degrees of freedom affects its dynamics in such a way that slow-roll inflation is maintained by dissipative ...
Rayff de Souza, Jamerson G. Rodrigues, Clarissa Siqueira, Felipe B. M. dos Santos, Jailson Alcaniz   +4 more
doaj   +2 more sources

No Warm Inflation From a Vanilla Axion [PDF]

Physical Review D
At finite temperature, the coupling of an axion to non-Abelian gauge fields causes dissipation due to sphaleron heating. This mechanism has been considered as ideal for realizing warm inflation, since it can lead to large thermal friction while ...
Sebastian Zell
openalex   +2 more sources

Exploring the Parameter Space of Warm-Inflation Models

, 2015
Warm inflation includes inflaton interactions with other fields throughout the inflationary epoch instead of confining such interactions to a distinct reheating era.
Bastero-Gil, Mar, Berera, Arjun, Kronberg, Nico   +2 more
core   +2 more sources

Identifying Universality in Warm Inflation [PDF]

Journal of Cosmology and Astroparticle Physics, 2018
Ideas borrowed from renormalization group are applied to warm inflation to characterize the inflationary epoch in terms of flows away from the de Sitter regime. In this framework different models of inflation fall into universality classes.
Berera, Arjun, Mabillard, Joel, Pieroni, Mauro, Ramos, Rudnei O.   +3 more
core   +2 more sources

Perturbation Spectra of Warm Inflation in f(Q, T) Gravity [PDF]

The Astrophysical Journal
We investigate the warm inflationary scenario within the context of the linear version of f ( Q , T ) gravity, coupled with both the inflaton scalar field and the radiation field, under the conditions of the strong dissipation regime. First, we calculate
Maryam Shiravand, Mehrdad Farhoudi, Parviz Goodarzi   +2 more
doaj   +2 more sources

Warm DBI Inflation

, 2011
We propose a warm inflationary model in the context of relativistic D-brane inflation in a warped throat, which has Dirac-Born-Infeld (DBI) kinetic term and is coupled to radiation through a dissipation term. The perturbation freezes at the sound horizon
Cai, Yi-Fu, Dent, James B., Easson, Damien A.   +2 more
core   +2 more sources

Warm Inflation [PDF]

Physical Review Letters, 1995
11 pages, 2 figures (In press Physical Review Letters 1995)
Arjun Berera
openalex   +4 more sources

Warm Affine Inflation [PDF]

Journal of Cosmology and Astroparticle Physics, 2023
Abstract The warm inflationary scenario is investigated in the context of affine gravity formalism. A general framework is provided for studying different single-field potentials. Using the sphaleron mechanism we explain the continuous dissipation of the inflaton field into radiation, leading to the Γ = Γ0 T
Mahmoud AlHallak
openalex   +4 more sources

Primordial non-Gaussianity in noncanonical warm inflation with nonminimal derivative coupling

European Physical Journal C: Particles and Fields
In this paper, the scenario of noncanonical warm inflation with nonminimal derivative coupling is introduced, and its primordial non-Gaussianity of perturbations on uniform energy density hypersurfaces is systematically analyzed.
Xiao-Min Zhang, Run-Qing Zhao, Yun-Cai Feng, Peng-Cheng Chu, Zhi-Peng Peng, Xi-Bin Li   +5 more
doaj   +2 more sources