Observing the Inflaton Potential [PDF]
Physical Review Letters, 1993 We show how observations of the density perturbation (scalar) spectrum and the gravitational wave (tensor) spectrum allow a reconstruction of the potential responsible for cosmological inflation.
A. A. Starobinsky +27 more
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Gravitino overproduction in inflaton decay [PDF]
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 2006 Most of the inflation models end up with non-vanishing vacuum expectation values of the inflaton fields in the true vacuum, which induce, in general, nonvanishing auxiliary field G_ for the inflaton potential in supergravity. We show that the presence of nonzero G_ gives rise to inflaton decay into a pair of the gravitinos and are thereby severely ...
Fuminobu Takahashi
exaly +6 more sources
Observational constraints on the inflaton potential combined with flow-equations in inflaton space [PDF]
Monthly Notices of the Royal Astronomical Society, 2002 Direct observations provide constraints on the first two derivatives of the inflaton potential in slow roll models. We discuss how present day observations, combined with the flow equations in slow roll parameter space, provide a non-trivial constraint ...
Hansen, Steen H., Kunz, Martin
core +5 more sources
Inflationary dynamics and preheating of the nonminimally coupled inflaton field in the metric and Palatini formalisms [PDF]
Physical Review D, 2017 Chengjie Fu, Puxun Wu, Hongwei Yu
exaly +2 more sources
Radiative Corrections to the Inflaton Potential as an Explanation of Suppressed Large Scale Power in Density Perturbations and the Cosmic Microwave Background [PDF]
, 2004 The Wilkinson Microwave Anisotropy Probe microwave background data suggest that the primordial spectrum of scalar curvature fluctuations is suppressed at small wavenumbers.
A Buchel +25 more
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Shape of the inflaton potential and the efficiency of the universe heating [PDF]
, 2015 It is shown that the efficiency of the universe heating by an inflaton field depends not only on the possible presence of parametric resonance in the production of scalar particles but also strongly depends on the character of the inflaton approach to ...
Dolgov, A. D. +2 more
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Non-perturbative production of matter and rapid thermalization after MSSM inflation [PDF]
, 2011 A {\it gauge invariant} combination of LLe {\it sleptons} within the Minimal Supersymmetric Standard Model is one of the few inflaton candidates that can naturally explain population of the observable sector and creation of matter after inflation.
Allahverdi, Rouzbeh +3 more
core +4 more sources
Quintessential inflation [PDF]
, 1998 We present an explicit observationally acceptable model for evolution from inflation to the present epoch under the assumption that the entropy and matter of the familiar universe are from gravitational particle production at the end of inflation.
A. D. Linde +23 more
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Universe Reheating after Inflation
, 1994 We study the problem of scalar particle production after inflation by a rapidly oscillating inflaton field. We use the framework of the chaotic inflation scenario with quartic and quadratic inflaton potentials.
A. Albrecht +17 more
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Dissipative Effects on Reheating after Inflation
, 2013 The inflaton must convert its energy into radiation after inflation, which, in a conventional scenario, is caused by the perturbative inflaton decay. This reheating process would be much more complicated in some cases: the decay products obtain masses ...
Mukaida, Kyohei, Nakayama, Kazunori
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