Warm inflation dynamics in the low temperature regime
نویسندگان
چکیده
منابع مشابه
Warm Inflation Dissipative Dynamics
Warm inflation dynamics is reviewed. Results on dissipative scalar field dynamics relevant to warm inflation are examined and estimates of radiation production are given.
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Standard, slow–roll, single–field inflation, as it has been incorporated into standard cosmology, is an over–simplified scenario to which there have been a number of suggested physical corrections. The generic prediction for the perturbations generated during slow–roll, single–field inflation, as they appear in the cosmic microwave background (CMB), is a flat, close–to– Gaussian spectrum. We ca...
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Warm inflation is examined in a multi-field model. Solutions are obtained for expansion e-folds and scalar density perturbations. Nonequilibrium dynamics is restricted to a regime that is displaced only slightly from thermal equilibrium and in which all macroscopic motion is adiabatic. In such a regime, nonequilibrium dynamics is well defined, provided macroscopic motions that displace the ther...
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Abstract: I show here that there are some interesting differences between the predictions of warm and cold inflation models focusing in particular upon the scalar spectral index ns and the tensor-to-scalar ratio r. The first thing to be noted is that the warm inflation models in general predict a vanishingly small value of r. Cold inflationary models with the potential V = M4 (φ/MP) p and a num...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2007
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.76.043515