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arXiv · 1009.3501

Ultra-Light Scalar Fields and the Growth of Structure in the Universe

David J. E. Marsh·Pedro G. Ferreira
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Abstract

Ultra-light scalar fields, with masses of between m=10^{-33} eV and m=10^{-22} eV, can affect the growth of structure in the Universe. We identify the different regimes in the evolution of ultra-light scalar fields, how they affect the expansion rate of the universe and how they affect the growth rate of cosmological perturbations. We find a number of interesting effects, discuss how they might arise in realistic scenarios of the early universe and comment on how they might be observed.

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David J. E. Marsh, Pedro G. Ferreira. 2010-09-17. Ultra-Light Scalar Fields and the Growth of Structure in the Universe. https://doi.org/10.1103/physrevd.82.103528

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