منابع مشابه
Generalized scalar field potentials and inflation.
We investigate the range of inflationary universe models driven by scalar fields possessing a general interaction potential of the form V (φ) = V0φ n exp(−λφm). Power-law, de Sitter and intermediate inflationary universes emerge as special cases together with several new varieties of inflation. Analysing the behaviour of these models at the extrema of φ we derive sufficient constraints on the m...
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Inflection-point inflation is an interesting possibility to realize a successful slow-roll inflation when inflation is driven by a single scalar field with its initial value below the Planck mass (φI . MP l). In order for a renormalization group (RG) improved effective λφ4 potential to develop an inflection-point, the quartic coupling λ(φ) must exhibit a minimum with an almost vanishing value i...
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With the discovery of the Higgs boson, and recent measurements from the BICEP2 collaboration indicating a tensor-to-scalar ratio of r = 0.20 −0.05[1], particle physics is now in an interesting position. The most precise measurements of the Higgs boson and top quark masses appear to show that the Electroweak vacuum is unstable under the fluctuations produced by inflation at the energy scale the ...
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ژورنال
عنوان ژورنال: Journal of Cosmology and Astroparticle Physics
سال: 2012
ISSN: 1475-7516
DOI: 10.1088/1475-7516/2012/11/049