61 citations · 308 across the 8 of their papers we have counts for
9 papers
Computation of non-Gaussianity in loop quantum cosmology
Vijayakumar Sreenath, Ivan Agullo, Boris Bolliet
We summarize our investigations of the second-order perturbations in loop quantum cosmology (LQC). We shall discuss, primarily, two aspects. Firstly, whether the second-order contr…
Non-Gaussianity in Loop Quantum Cosmology
Ivan Agullo, Boris Bolliet, V. Sreenath
We extend the phenomenology of loop quantum cosmology (LQC) to second order in perturbations. Our motivation is twofold. On the one hand, since LQC predicts a cosmic bounce that ta…
Quantum-gravity phenomenology with primordial black holes
Francesca Vidotto, Aurelien Barrau, Boris Bolliet +2
Quantum gravity may allow black holes to tunnel into white holes. If so, the lifetime of a black hole could be shorter than the one given by Hawking evaporation, solving the inform…
Bouncing black holes in quantum gravity and the Fermi gamma-ray excess
Aurélien Barrau, Boris Bolliet, Marrit Schutten +1
Non-perturbative quantum-gravity effects can change the fate of black holes and make them bounce in a time scale shorter than the Hawking evaporation time. In this article, we show…
Some conceptual issues in loop quantum cosmology
Aurélien Barrau, Boris Bolliet
Loop quantum gravity is a mature theory. To proceed to explicit calculations in cosmology, it is necessary to make assumptions and simplifications based on the symmetries of the co…
Observational Exclusion of a Consistent Quantum Cosmology Scenario
Boris Bolliet, Aurelien Barrau, Julien Grain +1
It is often argued that inflation erases all the information about what took place before it started. Quantum gravity, relevant in the Planck era, seems therefore mostly impossible…
Primordial scalar power spectrum from the Euclidean Big Bounce
Susanne Schander, Aurélien Barrau, Boris Bolliet +3
In effective models of loop quantum cosmology, the holonomy corrections are associated with deformations of space-time symmetries. The most evident manifestation of the deformation…
Phenomenology of bouncing black holes in quantum gravity: a closer look
Aurelien Barrau, Boris Bolliet, Francesca Vidotto +1
It was recently shown that black holes could be bouncing stars as a consequence of quantum gravity. We investigate the astrophysical signals implied by this hypothesis, focusing on…
Comparison of primordial tensor power spectra from the deformed algebra and dressed metric approaches in loop quantum cosmology
B. Bolliet, J. Grain, C. Stahl +2
Loop quantum cosmology tries to capture the main ideas of loop quantum gravity and to apply them to the Universe as a whole. Two main approaches within this framework have been con…