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Primordial magnetic seeds from string cosmology
Author(s) -
Gasperini M.
Publication year - 2006
Publication title -
astronomische nachrichten
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.394
H-Index - 63
eISSN - 1521-3994
pISSN - 0004-6337
DOI - 10.1002/asna.200610541
Subject(s) - physics , superstring theory , heterotic string theory , dilaton , theoretical physics , string cosmology , string (physics) , cosmology , particle physics , string theory , coupling (piping) , astrophysics , supersymmetry , quantum mechanics , relationship between string theory and quantum field theory , quantum gravity , quantum , mechanical engineering , engineering
Abstract After a discussion of the inflationary production of primordial magnetic seeds and a brief 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. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)