Exact inflationary cosmologies with exit: from an inflaton complex field to an `anti-inflaton' one

Details Exact inflationary cosmologies with exit: from an inflaton complex field to an `anti-inflaton' one Exact inflationary cosmologies with exit: from an inflaton complex field to an `anti-inflaton' one

Sep 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001cqgra..18.3753y&link_type=abstract

Classical and Quantum Gravity, Volume 18, Issue 17, pp. 3753-3766 (2001).

Computer Science

2

Scientific paper

We study Barrow's method for the case of a complex scalar field and present exact solutions to Einstein's equations. There are two results from the investigation of these solutions. First, the complex fields give us an inflationary cosmology with a natural exit as distinct from models with a real inflaton. Second, the complex inflaton leads to very small inflation. We suppose that a satisfactory model may contain two scalar fields: one real and one complex. The real field (the inflaton) must lead to power-law inflation and the complex field (the `anti-inflaton') must lead to exit from inflation. So the complex scalar field can be useful in the hybrid models as the field that triggers the end of inflation.

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