This article reviews the present status of the spin-foam approach to the quantization of
gravity. Special attention is payed to the pedagogical presentation of the recently-introduced …

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 …

Introduction to Loop Quantum Cosmology Symmetry, Integrability and Geometry: Methods
and Applications (SIGMA) SIGMA 8 (2012), 016, 73 pages arXiv:1109.6801 https://doi.org/10.3842/SIGMA.2012.016 …

We revisit the non-singular black hole solution in (extended) mimetic gravity with a limiting
curvature from a Hamiltonian point of view. We introduce a parameterization of the phase …

We study the behavior of the Lorentzian Engle-Pereira-Rovelli-Livine spinfoam amplitude
with homogeneous boundary data, under a graph refinement going from five to twenty …

Discrete models usually represent approximations to continuum physics. Cylindrical
consistency provides a framework in which discretizations exactly mirror the continuum limit …

We employ the methods of discrete (Lorentzian) Regge calculus for analysing Lorentzian
quantum cosmology models with a special focus on discrete analogues of the no-boundary …

In the quest of a physical theory of quantum gravity, spin foam models, or in short spinfoams,
propose a well-defined path integral summing over quantized discrete space-time …

Spin foams provide a framework for the dynamics of loop quantum gravity that is manifestly
covariant under the full four-dimensional diffeomorphism symmetry group of general …

In the context of loop quantum gravity (LQG), we study the fate of Thiemann complexifier in
homogeneous and isotropic Friedmann-Lemaitre-Roberston-Walker (FLRW) cosmology …