# Little inflatons and gauge inflation

@article{Kaplan2003LittleIA, title={Little inflatons and gauge inflation}, author={David Elazzar Kaplan and Neal Weiner}, journal={Journal of Cosmology and Astroparticle Physics}, year={2003}, volume={2004}, pages={005-005} }

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 relating to the flatness of the inflaton potential. Recent studies of `little' fields, a special class of pseudo-Goldstone bosons, have shown it is possible to protect the mass of a field while still yielding order-one interactions with other fields. In this paper, we will show that `little inflatons' are…

## 54 Citations

Minimal gauge inflation

- Physics
- 2008

We consider a gauge inflation model in the simplest orbifold M4 x S1/Z2 with the minimal non-Abelian SU(2) hidden sector gauge symmetry. The inflaton potential is fully radiatively generated solely…

The Curvaton as a pseudoNambu-Goldstone boson.

- Physics
- 2003

The field responsible for the cosmological curvature perturbations generated during a stage of primordial inflation might be the ``curvaton'', a field different from the inflaton field. To keep the…

Fluxbrane Inflation

- Physics
- 2011

As a first step towards inflation in genuinely F-theoretic setups, we propose a scenario where the inflaton is the relative position of two 7-branes on holomorphic 4-cycles. Non-supersymmetric gauge…

A minimal gauge inflation model

- PhysicsChinese Physics C
- 2018

In this paper, we present a gauge inflation model based on the orbifold with non-Abelian SU(2) gauge symmetry, which is probably the simplest model in this category. As the inflaton potential is…

Natural inflation from 5D SUGRA and low reheat temperature

- Physics
- 2015

Abstract Motivated by recent cosmological observations of a possibly unsuppressed primordial tensor component r of inflationary perturbations, we reanalyze in detail the 5D conformal SUGRA originated…

Particle physics models of inflation and curvaton scenarios

- Physics
- 2011

We review the particle theory origin of inflation and curvaton mechanisms for generating large scale structures and the observed temperature anisotropy in the cosmic microwave background (CMB)…

Gauge and Modulus Inflation From 5D Orbifold SUGRA

- Physics
- 2006

We study the inflationary scenarios driven by a Wilson line field - the fifth component of a 5D gauge field and corresponding modulus field, within S (1) /Z2 orbifold supergravity (SUGRA). We use our…

Warped hybrid inflation

- Physics
- 2010

We construct a model of hybrid inflation within a controlled five-dimensional effective field theory framework. The inflaton and waterfall fields are realized as naturally light moduli of the 5D…

New Cosmological Probes for Old Fundamental Questions

- Physics
- 2017

To a good approximation our Universe is flat and homogeneous, and possesses perturbations which, albeit once upon a time small, have seeded the large-scale structure that we observe around us. We…

Multi-natural inflation in supergravity

- Physics
- 2014

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…

## References

SHOWING 1-10 OF 59 REFERENCES

Supernatural inflation: inflation from supersymmetry with no (very) small parameters

- Physics
- 1996

Abstract Most models of inflation have small parameters, either to guarantee sufficient inflation or the correct magnitude of the density perturbations. In this paper we show that, in supersymmetric…

supersymmetry in a hybrid inflation model

- Physics
- 2001

Abstract The slow roll inflation requires an extremely flat inflaton potential. The supersymmetry (SUSY) is not only motivated from the gauge hierarchy problem, but also from stabilizing that…

Natural double inflation in supergravity

- Physics
- 2001

We propose a natural double inflation model in supergravity. In this model, chaotic inflation first takes place by virtue of the Nambu-Goldstone-like shift symmetry, which guarantees the absence of…

The Minimal Moose for a Little Higgs

- Physics
- 2002

Recently a new class of theories of electroweak symmetry breaking have been constructed. These models, based on deconstruction and the physics of theory space, provide the first alternative to…

D-term inflation

- Physics
- 1996

Abstract We show that inflation which is dominated by the D-term density avoids the ‘slow-roll’ problem of inflation in supergravity. Such an inflationary scenario can naturally emerge in theories…

False vacuum inflation with Einstein gravity.

- Physics, MedicinePhysical review. D, Particles and fields
- 1994

Investigation of chaotic inflation models with two scalar fields, such that one field (the inflaton) rolls while the other is trapped in a false vacuum state, finds that false vacuum inflation occurs with the inflaton field far below the Planck scale, making it easier to implement in the context of supergravity than standard chaotic inflation.

Inflationary universe: A possible solution to the horizon and flatness problems

- Physics
- 1981

The standard model of hot big-bang cosmology requires initial conditions which are problematic in two ways: (1) The early universe is assumed to be highly homogeneous, in spite of the fact that…

Gauged supergravities, de Sitter space and cosmology

- Physics
- 2002

We have studied scalar potentials V of gauged N=8,4,2 supergravities in d=4. Extrema of these potentials may correspond to de Sitter, anti de Sitter and Minkowski vacua. We have found that all known…

Natural inflation with pseudo Nambu-Goldstone bosons.

- Physics, MedicinePhysical review letters
- 1990

We show that a pseudo-Nambu-Goldstone boson, with a potential of the form V(d) = A’[1 f cos(+/f)], can naturally give rise to an epoch of infiation in the early universe. Successful inflation can be…

Natural Supergravity Inflation

- Physics
- 1997

Abstract We identify a new mechanism in supergravity theories which leads to successful inflation without any need for fine-tuning. The simplest model yields a spectrum of density fluctuations tilted…