# Multi-natural inflation in supergravity

@article{Czerny2014MultinaturalII,
title={Multi-natural inflation in supergravity},
author={Michael Czerny and Tetsutaro Higaki and Fuminobu Takahashi},
journal={Journal of High Energy Physics},
year={2014},
volume={2014},
pages={1-25}
}
• Published 3 March 2014
• Physics
• Journal of High Energy Physics
A bstractWe show that the recently proposed multi-natural inflation can be realized within the framework of 4D $\mathcal{N}$ = 1 supergravity. The inflaton potential mainly consists of two sinusoidal potentials that are comparable in size, but have different periodicity with a possible non-zero relative phase. For a sub-Planckian decay constant, the multi-natural inflation model is reduced to axion hilltop inflation. We show that, taking into account the effect of the relative phase, the…
69 Citations
Supergravity is a well-motivated theory beyond the standard model of particle physics, and a suitable arena to study high-energy physics at the early universe including inflation, whose observational
• Geology
• 2015
A bstractWe emphasize the importance of effects from heavy fields on supergravity models of inflation. We study, in particular, the backreaction of stabilizer fields and geometric moduli in the
• Physics
• 2014
We study parameter space in the axion monodromy inflation corrected by dynamically generated terms involving with the axion. The potential has the linear term with multiple sinusoidal functions,
• Physics
• 2014
A bstractWe propose a mechanism for the natural inflation with and without modulation in the framework of type IIB string theory on toroidal orientifold or orbifold. We explicitly construct the
• Physics
• 2017
A bstractWe discuss inflation models within supersymmetry and supergravity frameworks with a landscape of chiral superfields and one U(1) shift symmetry which is broken by non-perturbative symmetry
• Physics
Journal of High Energy Physics
• 2018
We discuss inflation models within supersymmetry and supergravity frameworks with a landscape of chiral superfields and one U(1) shift symmetry which is broken by non-perturbative symmetry breaking
• Physics
• 2017
The success of a given inflationary model crucially depends upon two features: its predictions for observables such as those of the Cosmic Microwave background (CMB) and its insensitivity to the
• Physics
• 2016
We discuss a realization of a small field inflation based on string inspired supergravities. In theories accompanying extra dimensions, compactification of them with small radii is required for

## References

SHOWING 1-10 OF 147 REFERENCES

• Physics
• 2013
We present a general polynomial chaotic inflation model in supergravity, for which the predicted spectral index and tensor-to-scalar ratio can lie within the 1σ region allowed by the Planck results.
• Physics
• 2010
We study a recently proposed running kinetic inflation model in which the inflaton potential becomes flat due to rapid growth of the kinetic term at large inflaton field values. As concrete examples,
• Physics
• 2010
We study various inflation models in the Jordan frame supergravity with a logarithmic Kahler potential. We find that, in a class of inflation models containing an additional singlet in the
• Physics
• 2003
We study how to obtain a suﬃciently ﬂat inﬂaton potential that is natural from the particle physics point of view. Supersymmetry, which is broken during inﬂation, cannot protect the potential against
• Physics
• 2005
If the inflaton is a pseudo-scalar axion, the axion shift symmetry can protect the flatness of its potential from too large radiative corrections. This possibility, known as natural inflation,
• Physics
Physical review letters
• 2013
We present a model for cosmological inflation based on a no-scale supergravity sector with an SU(2,1)/SU(2)×U(1) Kähler potential, a single modulus T, and an inflaton superfield Φ described by a
• Physics
• 2003
Cosmological inflation gives a natural answer for a variety of cosmological questions, including the horizon problem, the flatness problem, and others. However, inflation yields new questions