منابع مشابه
Hilltop Inflation
We study ‘hilltop’ inflation, in which inflation takes place near a maximum of the potential. Viewed as a model of inflation after the observable Universe leaves the horizon (observable inflation) hilltop inflation is rather generic. If the potential steepens monotonically, observable hilltop inflation gives a tiny tensor fraction (r ∼ 0.002). The usual F and D-term models may easily be transmu...
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We study non-Gaussianity induced by a pseudo Nambu-Goldstone boson with a cosine-type scalar potential. We focus on how the non-Gaussianity is affected when the pseudo Nambu-Goldstone boson rolls down from near the top of the scalar potential where the deviation from a quadratic potential is large. We find that the resultant non-Gaussianity is similar to that obtained in the quadratic potential...
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In this paper, we consider logarithmic radiative corrections and higher order terms to the supersymmetric hilltop Fand D-term hybrid inflation models. Conventional Fand D-term hybrid inflation only predicts ns > ∼ 0.98. We show that via a positive quadratic and a negative quartic correction the spectral index can be reduced to ns = 0.96 suggested from latest WMAP result and also cosmic string p...
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Archaeologists have long noted the striking monumentality and large-scale efforts behind the Iron Age hilltop settlements. Yet, because of limited excavations, they represent a controversial part of the Migration Period society and much of their function remains hidden. This paper deals with questions concerning the inner organization and activities that took place within the Iron Age hilltop s...
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The axion solution of the strong CP problem is reviewed together with the other strong CP solutions. We also point out the quintessential axion(quintaxion) whose potential can be extremely flat due to the tiny ratio of the hidden sector quark mass and the intermediate hidden sector scale. The quintaxion candidates are supposed to be the string theory axions, the model independent or the model d...
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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2019
ISSN: 1029-8479
DOI: 10.1007/jhep05(2019)163