Bianchi-type string cosmology
نویسنده
چکیده
Bianchi-type string cosmology involves generalizations of the FRW backgrounds with three transitive spacelike Killing symmetries, but without any a priori assumption of isotropy in the 3D sections of homogeneity. With emphasis on those cases with diagonal metrics and vanishing cosmological constant which have not been previously examined in the literature, the present findings allow an overview and the classification of all Bianchi-type backgrounds. These string solutions (at least to lowest order in α) offer prototypes for the study of spatial anisotropy and its impact on the dynamics of the early universe. CERN–TH/95–87 April 1995 Permanent address: Department of Physics, University of Ioannina, GR–45100 Ioannina, Greece e–mail address: [email protected]
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