String Gas Cosmology and Structure Formation

Brandenberger, Robert H.; Nayeri, Ali; Patil, Subodh P.; Vafa, Cumrun

String Gas Cosmology and Structure Formation

Authors

Brandenberger, Robert H.

Nayeri, Ali

Patil, Subodh P.

Vafa, Cumrun

Description

It has recently been shown that a Hagedorn phase of string gas cosmology may provide a causal mechanism for generating a nearly scale-invariant spectrum of scalar metric fluctuations, without the need for an intervening period of de Sitter expansion. A distinctive signature of this structure formation scenario would be a slight blue tilt of the spectrum of gravitational waves. In this paper we give more details of the computations leading to these results.
12 pages, 3 figures