Quantum Inhomogeneities in String Cosmology

Details Quantum Inhomogeneities in String Cosmology Quantum Inhomogeneities in String Cosmology

1997-10-24

arxiv.org/abs/hep-th/9710188v1

JHEP 9801 (1998) 004

Physics

High Energy Physics

High Energy Physics - Theory

30 pages, RevteX, epsfig, 5 figures

Scientific paper

10.1088/1126-6708/1998/01/004

Within two specific string cosmology scenarios --differing in the way the pre- and post-big bang phases are joined-- we compute the size and spectral slope of various types of cosmologically amplified quantum fluctuations that arise in generic compactifications of heterotic string theory. By further imposing that these perturbations become the dominant source of energy at the onset of the radiation era, we obtain physical bounds on the background's moduli, and discuss the conditions under which both a (quasi-) scale-invariant spectrum of axionic perturbations and sufficiently large seeds for the galactic magnetic fields are generated. We also point out a potential problem with achieving the exit to the radiation era when the string coupling is near its present value.

Affiliated with

Also associated with

No associations

Rating

Quantum Inhomogeneities in String Cosmology does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Quantum Inhomogeneities in String Cosmology, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quantum Inhomogeneities in String Cosmology will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-375138