# Quantum-gravitational effects on gauge-invariant scalar and tensor perturbations during inflation: The de Sitter case

@article{Brizuela2016QuantumgravitationalEO, title={Quantum-gravitational effects on gauge-invariant scalar and tensor perturbations during inflation: The de Sitter case}, author={David Brizuela and Claus Kiefer and Manuel Kraemer}, journal={Physical Review D}, year={2016}, volume={93}, pages={104035} }

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 Schroedinger 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… Expand

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