Brizuela, David, Kiefer, Claus and Kramer, Manuel ORCID: 0000-0002-4442-277X
(2016).
Quantum-gravitational effects on gauge-invariant scalar and tensor perturbations during inflation: The de Sitter case.
Phys. Rev. D, 93 (10).
COLLEGE PK:
AMER PHYSICAL SOC.
ISSN 2470-0029
Abstract
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.
Item Type: | Journal Article | ||||||||||||||||
Creators: |
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URN: | urn:nbn:de:hbz:38-275631 | ||||||||||||||||
DOI: | 10.1103/PhysRevD.93.104035 | ||||||||||||||||
Journal or Publication Title: | Phys. Rev. D | ||||||||||||||||
Volume: | 93 | ||||||||||||||||
Number: | 10 | ||||||||||||||||
Date: | 2016 | ||||||||||||||||
Publisher: | AMER PHYSICAL SOC | ||||||||||||||||
Place of Publication: | COLLEGE PK | ||||||||||||||||
ISSN: | 2470-0029 | ||||||||||||||||
Language: | English | ||||||||||||||||
Faculty: | Faculty of Mathematics and Natural Sciences | ||||||||||||||||
Divisions: | Faculty of Mathematics and Natural Sciences > Department of Physics > Institute for Theoretical Physics | ||||||||||||||||
Subjects: | no entry | ||||||||||||||||
Uncontrolled Keywords: |
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Refereed: | Yes | ||||||||||||||||
URI: | http://kups.ub.uni-koeln.de/id/eprint/27563 |
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