Backreactions in the early universe

Details Backreactions in the early universe Backreactions in the early universe

Apr 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aps..apr.c9004l&link_type=abstract

American Physical Society, April Meeting, 2003, April 5-8, 2003 Philadelphia, Pennsylvania, MEETING ID: APR03, abstract #C9.004

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Scientific paper

We extend cosmological perturbation theory beyond linear order and consider the resulting metric and matter backreactions both about pure deSitter and in the inflationary context. We discuss the stability and asymptotic stability of deSitter spacetime (with a cosmological constant fixed by hand) and consider the character of linear mode mixing due to backreactions. Finally we consider backreactions in the inflationary context, in particular focusing on the situation where there are non-linear perturbations in the scalar matter and only linear perturbations in the metric.

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