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Cosmological Inflation: Theory and Observations

2009; American Scientific Publishers; Volume: 2; Issue: 2 Linguagem: Inglês

10.1166/asl.2009.1019

1936-7317

Daniel Baumann,

Cosmology and Gravitation Theories

In this article we review the theory of cosmological inflation with a particular focus on the beautiful connection it provides between the physics of the very small and observations of the very large.We explain how quantum mechanical fluctuations during the inflationary era become macroscopic density fluctuations which leave distinct imprints in the cosmic microwave background (CMB).We describe the physics of anisotropies in the CMB temperature and polarization and discuss how CMB observations can be used to probe the primordial universe.