Primordial magnetic seeds from string cosmology

Details Primordial magnetic seeds from string cosmology Primordial magnetic seeds from string cosmology

2005-09-07

arxiv.org/abs/astro-ph/0509174v1

Astronomy and Astrophysics

Astrophysics

Four pages, two figures, to appear in the Proc. of the Int. Conference on "The Origin and Evolution of Cosmic Magnetism", Bolo

Scientific paper

10.1002/asna.200610541

After a discussion of the inflationary production of primordial magnetic seeds, and a short review of various possible mechanisms, we concentrate on the analysis of the photon-dilaton coupling typical of string theory models. Particular attention is paid to the constraints to be imposed on the primordial seed spectrum, and to the possibility of obtaining phenomenological signatures of heterotic and Type I superstrings, in principle accessible to present (or near-future) observations.

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