Cosmological density perturbations from inflationary universes driven by a vector field.

Details Cosmological density perturbations from inflationary universes driven by a vector field. Cosmological density perturbations from inflationary universes driven by a vector field.

Mar 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991nuphb.351..695l&link_type=abstract

Nuclear Physics B, Part. Phys., Vol. 351, No. 3, p. 695 - 705

Physics

Nuclear Physics

5

Scientific paper

The formation of a density spectrum produced by a vector field, Aμ, undergoing quantum fluctuations in the de Sitter space is investigated. The field self-interacts through a potential V(ξ), where ξ = AμAμ, and is split up into a classical, homogeneous part and a quantum part. It is found that the density spectrum is scale dependent when the potential satisfies appropriate conditions.

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