Symmetry breaking patterns for inflation

@article{Klein2018SymmetryBP,
  title={Symmetry breaking patterns for inflation},
  author={R Klein and D. van der Roest and David Stefanyszyn},
  journal={Journal of High Energy Physics},
  year={2018},
  volume={2018},
  pages={1-23}
}
A bstractWe study inflationary models where the kinetic sector of the theory has a non-linearly realised symmetry which is broken by the inflationary potential. We distinguish between kinetic symmetries which non-linearly realise an internal or space-time group, and which yield a flat or curved scalar manifold. This classification leads to well-known inflationary models such as monomial inflation and α-attractors, as well as a new model based on fixed couplings between a dilaton and many axions… 

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References

SHOWING 1-10 OF 90 REFERENCES

Fibre inflation and α-attractors

A bstractFibre inflation is a specific string theory construction based on the Large Volume Scenario that produces an inflationary plateau. We outline its relation to α-attractor models for

Inflation from nilpotent Kähler corrections

We develop a new class of supergravity cosmological models where inflation is induced by terms in the Kähler potential which mix a nilpotent superfield S with a chiral sector Φ. As the new terms are

The Effective Field Theory of Inflation

We study the effective field theory of inflation, i.e. the most general theory describing the fluctuations around a quasi de Sitter background, in the case of single field models. The scalar mode can

Pole inflation — Shift symmetry and universal corrections

A bstractAn appealing explanation for the Planck data is provided by inflationary mod els with a singular non-canonical kinetic term: a Laurent expansion of the kinetic function translates into a

Minimal Supergravity Models of Inflation

We present a superconformal master action for a class of supergravity models with one arbitrary function defining the Jordan frame. It leads to a gauge-invariant action for a real vector multiplet,

Gravity Waves and Linear Inflation from Axion Monodromy

Wrapped branes in string compactifications introduce a monodromy that extends the field range of individual closed-string axions to beyond the Planck scale. Furthermore, approximate shift symmetries

An ignoble approach to large field inflation

We study an inflationary model developed by Kaloper and Sorbo, in which the inflaton is an axion with a sub-Planckian decay constant, whose potential is generated by mixing with a topological 4-form

Monodromy in the CMB: Gravity Waves and String Inflation

We present a simple mechanism for obtaining large-field inflation, and hence a gravitational wave signature, from string theory compactified on twisted tori. For nil manifolds, we obtain a leading

A natural framework for chaotic inflation.

It is shown that inflation with a quadratic potential occurs naturally in theories where an axionlike field mixes with a 4-form, and the axion can roll slowly towards its minimum, as in the simplest version of chaotic inflation.

A generalized non-Gaussian consistency relation for single field inflation

We show that a perturbed inflationary spacetime, driven by a canonical single scalar field, is invariant under a special class of coordinate transformations together with a field reparametrization of
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