11 citations · 17 across the 5 of their papers we have counts for
5 papers
Quantum cosmological background superposition and perturbation predictions
Kratika Mazde, Lisa Mickel, Patrick Peter
Predictions from early universe cosmology typically concern primordial perturbations generated during epochs where effects arising from the quantum nature of gravity may be importa…
Cosmological scalar perturbations for a metric reconstructed from group field theory
Steffen Gielen, Lisa Mickel
While homogeneous cosmologies have long been studied in the group field theory (GFT) approach to quantum gravity, including a quantum description of cosmological perturbations is h…
Reconstructing the metric in group field theory
Steffen Gielen, Lisa Mickel
We study a group field theory (GFT) for quantum gravity coupled to four massless scalar fields, using these matter fields to define a (relational) coordinate system. We exploit sym…
Gauge-invariant perturbations at a quantum gravity bounce
Steffen Gielen, Lisa Mickel
We study the dynamics of gauge-invariant scalar perturbations in cosmological scenarios with a modified Friedmann equation, such as quantum gravity bouncing cosmologies. We work wi…
Loop effective model for Schwarzschild black hole interior: a modified dynamics
Mehdi Assanioussi, Lisa Mickel
In this article, we introduce a new effective model for the Kantowski-Sachs spacetime in the context of loop quantum gravity, and we use it to evaluate departures from general rela…