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Scale-factor duality in string Bianchi cosmologies

Elisa Di Pietro·Jacques Demaret
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Abstract

We apply the scale factor duality transformations introduced in the context of the effective string theory to the anisotropic Bianchi-type models. We find dual models for all the Bianchi-types [except for types $VIII$ and $IX$] and construct for each of them its explicit form starting from the exact original solution of the field equations. It is emphasized that the dual Bianchi class $B$ models require the loss of the initial homogeneity symmetry of the dilatonic scalar field.

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Elisa Di Pietro, Jacques Demaret. 1999-07-13. Scale-factor duality in string Bianchi cosmologies. https://doi.org/10.1142/s0218271899000262

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