منابع مشابه
Moduli Corrections to D-term Inflation
We present a D-term hybrid inflation model, embedded in supergravity with moduli stabilisation. Its novel features allow us to overcome the serious challenges of combining D-term inflation and moduli fields within the same string-motivated theory. One salient point of the model is the positive definite uplifting D-term arising from the moduli stabilisation sector. By coupling thisD-term to the ...
متن کاملSuccessful D-term Inflation with moduli
We examine a natural extension of D-term inflation and construct a successful model. General type of the D-term potential is shown to produce successful inflation with appropriate COBE normalization. The effect of the dilaton shift at the inflation period is taken into account. [email protected]
متن کاملLoop Corrections to Volume Moduli and Inflation in String Theory
The recent progress in embedding inflation in string theory has made it clear that the problem of moduli stabilization cannot be ignored in this context. In many models a special role is played by the volume modulus, which is modified in the presence of mobile branes. The challenge is to stabilize this modified volume while keeping the inflaton mass small compared to the Hubble parameter. It is...
متن کاملDilaton and Moduli Fields in D-term inflation
We investigate the possibility of D-term inflation within the framework of type I string-inspired models. Although D-term inflation model has the excellent property that it is free from the so-called ηproblem, two serious problems appear when we embed D-term inflation in string theory, the magnitude of FI term and the rolling motion of the dilation. In the present paper, we analyze the potentia...
متن کاملKähler Moduli Inflation
We show that under general conditions there is at least one natural inflationary direction for the Kähler moduli of type IIB flux compactifications. This requires a Calabi-Yau which has h2,1 > h1,1 > 2 and for which the structure of the scalar potential is as in the recently found exponentially large volume compactifications. We also need although these conditions may be relaxed at least one Kä...
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ژورنال
عنوان ژورنال: Journal of Cosmology and Astroparticle Physics
سال: 2007
ISSN: 1475-7516
DOI: 10.1088/1475-7516/2007/01/026