Particle physics models of inflation and the cosmological density perturbation

@article{Lyth1999ParticlePM,
  title={Particle physics models of inflation and the cosmological density perturbation},
  author={David H. Lyth and Antonio Walter Riotto},
  journal={Physics Reports},
  year={1999},
  volume={314},
  pages={1-146}
}

Figures and Tables from this paper

Effects of heavy fields on inflationary cosmology

Cosmological inflation is the most successful theory that explains the homogeneity and flatness of the early universe. It also provides a quantum origin for the primordial perturbations that we

Cosmological perturbations without inflation

A particularly attractive feature of inflation is that quantum fluctuations in the inflaton field may have seeded inhomogeneities in the cosmic microwave background (CMB) and the formation of

Inflationary Perturbations: the Cosmological Schwinger Effect

This pedagogical review aims at presenting the fundamental aspects of the theory of inflationary cosmological perturbations of quantum-mechanical origin. The analogy with the well-known Schwinger

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

Testing models of cosmological inflation

Over the past two decades cosmological inflation has become an essential ingredient to any model of the early universe. Measurements of temperature fluctuations observed in the Cosmic Microwave

Models of modular inflation and their phenomenological consequences

We study models of modular inflation of the form expected to arise from low energy effective actions of superstring theories. We argue on general grounds that the most likely models are small field

Stability of Extra Dimensions in the Inflating Early Universe

Cosmic inflation is an attractive paradigm to explain the initial conditions of the universe. It can be conveniently described by the dynamics of a single scalar field within N = 1 supergravity. Due

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 591 REFERENCES

A General Analytic Formula for the Spectral Index of the Density Perturbations Produced during Inflation.

During inflation'> vacuum fluctuations on scales less than the Hubble radius in scalar fields with effective masses much less than the Hubble parameter**> are magnified into classical perturbations

Modular cosmology.

TLDR
It is shown that string theory has two generic types of domain walls which could be the seeds for inflation, and it is argued that modular physics provides a very robust model of inflation.

Density perturbations and black hole formation in hybrid inflation.

TLDR
It is shown that density perturbations in hybrid inflation models of the new type can be very large on the scale corresponding to the phase transition, which could lead to a copious production of black holes in these models.

Big bang nucleosynthesis and physics beyond the standard model

The Hubble expansion of galaxies, the 2.73 K black-body radiation background and the cosmic abundances of the light elements argue for a hot, dense origin of the universe - the standard big bang

Analysis of inflation driven by a scalar field and a curvature-squared term.

TLDR
The spectrum of adiabatic perturbations generated from vacuum quantum fluctuations is investigated and it is found that it is quasiflat (though not necessarily varying monotonically with scale) in the case of single inflation; for double inflation, it has a characteristic step.
...