Journal
PHYSICAL REVIEW D
Volume 93, Issue 10, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.93.104035
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Funding
- Alexander von Humboldt Foundation
- Basque Government [IT592-13]
- Spanish Ministry of Economy and Competitiveness [FIS2012-34379, FIS2014-57956-P]
- Polish National Science Centre [DEC-2012/06/A/ST2/00395]
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We present detailed calculations for quantum-gravitational corrections to the power spectra of gauge-invariant scalar and tensor perturbations during inflation. This is done by performing a semiclassical Born-Oppenheimer type of approximation to the Wheeler-DeWitt equation, from which we obtain a Schrodinger equation with quantum-gravitational correction terms. As a first step, we perform our calculation for a de Sitter universe and find that the correction terms lead to an enhancement of power on the largest scales.
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