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

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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:
CreatorsEmailORCIDORCID Put Code
Brizuela, DavidUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kiefer, ClausUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kramer, ManuelUNSPECIFIEDorcid.org/0000-0002-4442-277XUNSPECIFIED
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: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
GRAVITY; DECOHERENCE; STABILITYMultiple languages
Astronomy & Astrophysics; Physics, Particles & FieldsMultiple languages
Refereed: Yes
URI: http://kups.ub.uni-koeln.de/id/eprint/27563

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