Physics & Cosmology

Cosmic Inflation

mainstream Contemporary 1980

A brief period of exponential expansion in the first fraction of a second after the Big Bang, proposed to solve the horizon and flatness problems.

Proponents

Alan Guth, Andrei Linde

Evidence For

Explains the near-uniformity and flatness of the observable universe; predicted fluctuations match CMB data.

Evidence Against

The inflaton field has never been directly detected; many inflation models are hard to falsify.

Real Sources

Transmissions

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