# Warm Inflation

## Abstract

**:**

## 1. Introduction

## 2. Definition and Measured Values of the Optical Parameters

## 3. Optical Parameters in Warm Inflation

## 4. Warm Monomial Inflation

## 5. Warm Natural Inflation

^{−16}J·m

^{−3}·K

^{−4}= 4.69 × 10

^{−6}GeV·m

^{−3}·K

^{−4}is the radiation constant. Combining with Equation (3.6) we get

## 6. Warm Viscous Inflation

## 7. Comparison of Models

## 8. Conclusions

## Acknowledgments

## Conflicts of Interest

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**Figure 1.**Illustration of the difference between cold inflation and warm inflation (Berera et al. (2009)).

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Warm Inflation. *Universe* **2016**, *2*, 20.
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Grøn Ø.
Warm Inflation. *Universe*. 2016; 2(3):20.
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