Scientific article
Open access

Cosmic microwave background anisotropies and extra dimensions in string cosmology

Published inPhysical review letters, vol. 83, p. 4464-4467
Publication date1999

A recently proposed mechanism for large-scale structure in string cosmology—based on massless axionic seeds—is further analyzed and extended to the acoustic-peak region. Existence, structure, and height of the peaks turn out to depend crucially on the overall evolution of extra dimensions during the pre–big bang phase: Conversely, precise cosmic microwave background anisotropy data in the acoustic-peak region will provide a window on the extra dimensions from string theory before their eventual compactification.

Citation (ISO format)
MELCHIORRI, Alessandro et al. Cosmic microwave background anisotropies and extra dimensions in string cosmology. In: Physical review letters, 1999, vol. 83, p. 4464–4467. doi: 10.1103/PhysRevLett.83.4464
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Article (Accepted version)
ISSN of the journal0031-9007

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