New Progress in Cosmology : Probing the Physics of the Early Universe from Non-Gaussianity of Temperature Anisotropy of Cosmic Microwave Background(Current Topics)

Abstract

Recently, non-gaussianity of the temperature anisotropy of the Cosmic Microwave Background has attracted a great deal of interest as a powerful probe of the early universe. By using non-gaussianity, we can probe the aspects of the origin of the temperature anisotropy that can not be probed by other observables. I will explain what we can learn about physics of the early universe if or if not non-gaussianity is detected in the future.