Inflationary constraints on cosmological field theory

Details Inflationary constraints on cosmological field theory Inflationary constraints on cosmological field theory

Jan 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000mnras.311..357o&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 311, Issue 2, pp. 357-360.

Astronomy and Astrophysics

Astronomy

Cosmic Microwave Background, Cosmology: Theory, Early Universe

Scientific paper

We consider a non-singular scalar field cosmology proposed by Starkovich & Cooperstock, in which the matter- and radiation-dominated eras are preceded by a `prematter' era characterized by negative pressure and rapid inflation. The form of the scalar potential during this period is of approximately power-law form, and is consistent with COBE and Tenerife data on the spectral index of density perturbations. However, the predicted density contrast is considerably larger than that observed. The theory also violates constraints on the energy at the end of inflation. Prospects for addressing these difficulties are briefly discussed.

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