Quantum gravity correction, evolution of scalar field and inflation

Details Quantum gravity correction, evolution of scalar field and inflation Quantum gravity correction, evolution of scalar field and inflation

1998-09-28

arxiv.org/abs/gr-qc/9809079v1

Class.Quant.Grav. 16 (1999) 1773-1782

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

11 pages, 3 figures

Scientific paper

10.1088/0264-9381/16/6/311

We take the first nontrivial coefficient of the Schwinger-DeWitt expansion as a leading correction to the action of the second-derivative metric-dilaton gravity. To fix the ambiguities related with an arbitrary choice of the gauge fixing condition and the parametrization for the quantum field, one has to use the classical equations of motion. As a result, the only corrections are the ones to the potential of the scalar field. It turns out that the parameters of the initial classical action may be chosen in such a way that the potential satisfies most of the conditions for successful inflation.

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