Particle Physics Models of Inflation

@inproceedings{Lyth2007ParticlePM,
  title={Particle Physics Models of Inflation},
  author={David H. Lyth},
  year={2007}
}
  • D. Lyth
  • Published 16 February 2007
  • Physics
Inflation models are compared with observation on the assumption that the curvature perturbation is generated from the vacuum fluctuation of the inflaton field. The focus is on single-field models with canonical kinetic terms, classified as small- medium- and large-field according to the variation of the inflaton field while cosmological scales leave the horizon. Small-field models are constructed according to the usual paradigm for beyond Standard Model physics 

Supergravity-based inflation models: a review

In this review, we discuss inflation models based on supergravity. After explaining the difficulties in realizing inflation in the context of supergravity, we show how to evade such difficulties.

Gauss–Bonnet term corrections in scalar field cosmology

  • I. Fomin
  • Physics
    The European Physical Journal C
  • 2020
The influence of non-minimal coupling of a scalar field and the Gauss–Bonnet term on the inflationary stage of evolution of the universe is investigated in this paper. The main cosmological effects

Regularization of single field inflation models

There are many single field inflationary models that are consistent with the recent Planck 2018 measurements of the spectral index n s and tensor-to-scalar ratio r . Despite good agreement with

Exact Approach to Inflationary Universe Models

In this chapter we introduce a study of inflationary universe models that are characterized by a single scalar inflation field . The study of these models is based on two dynamical equations: one

Cosmological Density Fluctuations in Stochastic Gravity - Formalism and Linear Analysis -

We study primordial perturbations generated from quantum fluctuations of an inflaton based on the formalism of stochastic gravity. Integrating out the degree of freedom of the inflaton field, we

Renormalization-group running induced cosmic inflation

As a contribution to a viable candidate for a standard model of cosmology, we here show that pre-inflationary quantum fluctuations can provide a scenario for the long-sought initial conditions for

Primordial Fluctuations in String Cosmology

This thesis is dedicated to the study of inflationary scenarios based on string theory. Inflation is a brief period of accelerated expansion in the very early Universe which gives natural

Theoretical considerations in the use of scalar-tensor theories of gravity in inflationary models

The inflationary paradigm is one which was designed to answer questions that arose from classical Hot Big Bang cosmology. The period of rapid expansion in the early Universe provides a mechanism to
...

References

SHOWING 1-10 OF 106 REFERENCES

D-term inflation

A-term inflation and the MSSM

The parameter space for A-term inflation is explored with W = �pp /pM p−3 P. With p = 6 andp ∼ 1, the observed spectrum and spectral tilt can be obtained with soft mass of order 10 2 GeV but not with

New old inflation

We propose a new class of inflationary solutions to the standard cosmological problems (horizon, flatness, monopole,...), based on a modification of old inflation. These models do not require a

Brane inflation: String theory viewed from the cosmos

Brane inflation is a specific realization of the inflationary universe scenario in the early universe within the brane world framework in string theory. The naturalness and robustness of this

MSSM flat direction inflation: slow roll, stability, fine-tuning and reheating

We consider low scale slow roll inflation driven by the gauge-invariant flat directions udd and LLe of the minimally supersymmetric standard model at the vicinity of a saddle point of the scalar

Inflation model building in moduli space

A self-consistent modular cosmology scenario and its testability in view of future CMB experiments are discussed. Particular attention is drawn to the enhanced symmetric points in moduli space which

Warm inflation dynamics in the low temperature regime

Warm inflation scenarios are studied with the dissipative coefficient computed in the equilibrium approximation. Use is made of the analytical expressions available in the low temperature regime with

Cosmological Inflation and Large-Scale Structure

This textbook is the first to provide a modern and unified overview of inflationary cosmology and carefully compares predictions with the latest observations, including those of the cosmic microwave background, the clustering and velocities of galaxies and the epoch of structure formation.

Sub-eV Hubble scale inflation within gauge mediated supersymmetry breaking

Minimal Supersymmetric Standard Model with gauge mediated supersymmetry breaking has all the necessary ingredients for a successful sub-eV Hubble scale inflation $H_{\rm inf} \sim 10^{-3}-10^{-1}$
...