M
Manuel Krämer
Researcher at Katholieke Universiteit Leuven
Publications - 2
Citations - 42
Manuel Krämer is an academic researcher from Katholieke Universiteit Leuven. The author has contributed to research in topics: Quantum gravity & Tensor. The author has an hindex of 2, co-authored 2 publications receiving 20 citations.
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Unitarity of quantum-gravitational corrections to primordial fluctuations in the Born-Oppenheimer approach
TL;DR: In this paper, the authors revisited the calculation of quantum-gravitational corrections to the power spectra of scalar and tensor perturbations in the Born-Oppenheimer approach to quantum gravity.
Journal ArticleDOI
Quantum-gravity effects for excited states of inflationary perturbations
TL;DR: In this paper, the authors generalize former findings regarding quantum-gravitational corrections arising from a canonical quantization of a perturbed Friedmann-Lema\^{\i}tre-Robertson-Walker (FLRW) universe during inflation by considering an initial state for the scalar and tensor perturbations that generalizes the adiabatic vacuum state and allows us to consider the scenario that the perturbation modes start their evolution in an excited state.