The exploration of the universe has recently entered a new era thanks to the multi-
messenger paradigm, characterized by a continuous increase in the quantity and quality of …

This contribution is an appetizer to the relatively young and fast-evolving approach to
quantum cosmology based on group field theory condensate states. We summarize the …

We use hydrodynamical separate universe simulations with the IllustrisTNG model to predict
the local primordial non-Gaussianity (PNG) bias parameters b ϕ and b ϕδ, which enter at …

The causal structure is a quintessential element of continuum spacetime physics and needs
to be properly encoded in a theory of Lorentzian quantum gravity. Established spin foam …

We derive an effective dynamics for scalar cosmological perturbations from quantum gravity,
in the framework of group field theory condensate cosmology. The emergent spacetime …

The early universe provides an opportunity for quantum gravity to connect to observation by
explaining the large-scale structure of the Universe. In the group field theory (GFT) …

We study the cosmological sector of the Lorentzian Barrett-Crane (BC) model coupled to a
free massless scalar field in its Group Field Theory (GFT) formulation, corresponding to the …

A major challenge at the interface of quantum gravity (QG) and cosmology is to explain the
emergence of the large-scale structure of the Universe from Planck scale physics. In this …

A bstract We discuss the relational strategy to solve the problem of time in quantum gravity
and different ways in which it could be implemented, pointing out in particular the …

We analyse the emergent cosmological dynamics corresponding to the mean field
hydrodynamics of quantum gravity condensates, in the group field theory formalism. We …