In quantum cosmology, one applies quantum physics to the whole universe. While no
unique version and no completely well-defined theory is available yet, the framework gives …

We give, in some detail, a critical overview over recent work towards deriving a cosmological
phenomenology from the fundamental quantum dynamics of group field theory (GFT), based …

We identify a class of condensate states in the group field theory (GFT) formulation of
quantum gravity that can be interpreted as macroscopic homogeneous spatial geometries …

A bstract We give a general procedure, in the group field theory (GFT) formalism for quantum
gravity, for constructing states that describe macroscopic, spatially homogeneous universes …

We study the effective cosmological dynamics, emerging as the hydrodynamics of simple
condensate states, of a group field theory (GFT) model for quantum gravity coupled to a …

We discuss the hints for the disappearance of continuum space and time at microscopic
scale. These include arguments for a discrete nature of them or for a fundamental non …

The universe as a quantum gravity condensate Page 1 CR Physique 18 (2017) 235–245
Contents lists available at ScienceDirect Comptes Rendus Physique www.sciencedirect.com …

Group field theories can be approached from different angles, coming from different lines of
research in quantum gravity. Historically, their first appearance [2, 3] came as a development …

We argue that refining, coarse graining and entangling operators can be obtained from time
evolution operators. This applies in particular to geometric theories, such as spin foams. We …

In the context of group field theory condensate cosmology, we clarify the extraction of
cosmological variables from the microscopic quantum gravity degrees of freedom. We show …