Causality, randomness, and the microwave background

Details Causality, randomness, and the microwave background Causality, randomness, and the microwave background

1995-05-05

arxiv.org/abs/astro-ph/9505030v4

Phys.Rev.Lett.76:1413-1416,1996

Astronomy and Astrophysics

Astrophysics

uuencoded tex file and 4 postscript figure files, 8 pages. Also available at http://euclid.tp.ph/Papers/index.html; Changes: M

Scientific paper

10.1103/PhysRevLett.76.1413

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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