astro-ph/0005003


AN EXPOSITION ON INFLATIONARY COSMOLOGY

Gary Scott Watson


Dept. of Physics, Brown University, P.O. Box 1843, Providence, RI 02912
E-mail: watson@het.brown.edu


Abstract. This paper is intended to offer a pedagogical treatment of inflationary cosmology, which is accessible to undergraduates. In recent years, inflation has become accepted as a standard scenario making predictions that are testable by observations of the cosmic background. It is therefore manifest that anyone wishing to pursue the study of cosmology and large-scale structure should have this scenario at their disposal. The author hopes this paper will serve to `bridge the gap' between technical and popular accounts of the subject.


Table of Contents

INTRODUCTION

STANDARD COSMOLOGY
The Cosmological Principle
The Expanding Universe
The Hubble Law and Particle Kinematics
The Robertson Walker Metric
The Cosmological Redshift
The Friedmann Models
Matter Dominated Models
The Einstein-deSitter Model
The Closed Model
The Open Model
Summary

A BRIEF HISTORY OF THE UNIVERSE

PROBLEMS WITH THE STANDARD COSMOLOGY
The Horizon Problem
The Problem of Large-Scale Structure
The Flatness Problem
The Monopole Problem

THE INFLATIONARY PARADIGM
Particle Physics and Cosmology
A Brief Summary of the Modern Particle Physics
Inflation As a Solution to the Initial Value Problems
Inflation and Scalar Fields
Modeling the Inflaton Field
The Amount of Inflation

OBSERVATIONAL TESTS OF INFLATION
Perturbations and Large-Scale Structure
The Cosmic Background Anisotropies
Summary

REFERENCES

APPENDIX A: ACRONYMS

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