Anisotropic Four-Dimensional NS-NS String Cosmology
Chiang-Mei Chen, T. Harko, M. K. Mak
Abstract
An anisotropic (Bianchi type I) cosmology is considered in the four-dimensional NS-NS sector of low-energy effective string theory coupled to a dilaton and an axion-like H-field within a de Sitter-Einstein frame background. The time evolution of this Universe is discussed in both the Einstein and string frames.
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