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arXiv · astro-ph/9505030

Causality, randomness, and the microwave background

Andreas Albrecht·David Coulson·Pedro Ferreira·Joao Magueijo
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Abstract

Fluctuations in the cosmic microwave background (CMB) temperature are being studied with ever increasing precision. Two competing types of theories might describe the origins of these fluctuations: ``inflation'' and ``defects''. Here we show how the differences between these two scenarios can give rise to striking signatures in the microwave fluctuations on small scales, assuming a standard recombination history. These should enable high resolution measurements of CMB anisotropies to distinguish between these two broad classes of theories, independent of the precise details of each.

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Andreas Albrecht, David Coulson, Pedro Ferreira, Joao Magueijo. 1996-02-29. Causality, randomness, and the microwave background. https://doi.org/10.1103/physrevlett.76.1413

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