A Causal Source which Mimics Inflation

Preprint

22 July 1996

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.astro-ph/9607109

Abstract

How unique are the inflationary predictions for the cosmic microwave anisotropy pattern? In this paper, it is asked whether an arbitrary causal source for perturbations in the standard hot big bang could effectively mimic the predictions of the simplest inflationary models. A surprisingly simple example of a `scaling' causal source is found to closely reproduce the inflationary predictions. This letter extends the work of a previous paper (ref. 6) to a full computation of the anisotropy pattern, including the Sachs Wolfe integral. I speculate on the possible physics behind such a source.

Keywords

INFLATIONARY PREDICTIONS
MICROWAVE ANISOTROPY
ANISOTROPY PATTERN
MIMICS INFLATION
COSMIC MICROWAVE
CAUSAL SOURCE

All Related Versions

Version 1, 1996-07-22, ArXiv
Published version: Physical Review Letters, 77 (20), 4138.

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