In quantum gravity, we envision renormalization as the key tool for bridging the gap between
microscopic models and observable scales. For spin foam quantum gravity, which is defined …

The canonical approach to quantum gravity has been put on a firm mathematical foundation
in the recent decades. Even the quantum dynamics can be rigorously defined, however, due …

We construct a second quantized reformulation of canonical loop quantum gravity (LQG) at
both kinematical and dynamical level, in terms of a Fock space of spin networks, and show …

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 present a gauge-invariant effective action for the Abelian-Higgs model (scalar
electrodynamics) with a chemical potential μ on a (1+ 1)-dimensional lattice. This …

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 …

Building on recent advances in defining Wilsonian renormalization group (RG) flows, and
the notion of scales in particular, for background-independent theories, we present a first …

As explained in Chapter 1, loop quantum gravity has provided a rigorous nonperturbative
framework, in which to formulate the dynamics of quantum gravity. It allowed fascinating …

A bstract We set up the Functional Renormalisation Group formalism for Tensorial Group
Field Theory in full generality. We then apply it to a rank-3 model over U (1) 3, endowed with …