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Towards a non-singular pre-Big Bang cosmology
We discuss general features of the $\beta$-function equations for spatially flat, $(d+1)$-dimensional cosmological backgrounds at lowest order in the string-loop expansion, but to all orders in $\alpha'$. In the special case of constant curvature and a linear dilaton these equations reduce to $...
| Autores principales: | , , |
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| Lenguaje: | eng |
| Publicado: |
1997
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1016/S0550-3213(97)00149-1 http://cds.cern.ch/record/314383 |