99 citations · 186 across the 11 of their papers we have counts for
12 papers
Global variables and dynamics of emergent cosmology in loop gravity
Iñaki Garay, Luis J. Garay, Diego H. Gugliotta +2
Deriving emergent cosmology from the discrete geometry of Loop Quantum Gravity remains an open challenge. We solve the two-vertex model exactly, including general non-symmetric con…
Area bounds and gauge fixing: alternative canonical variables for loop gravity
Iñaki Garay, Sergio Rodríguez-González, Raül Vera
We use a canonical parametrization of twisted geometries describing the classical phase space of loop quantum gravity on a fixed graph, and establish its explicit correspondence wi…
Cosmological Spacetimes with Sign-Changing Spatial Curvature and Topological Transitions
Gerardo García-Moreno, Bert Janssen, Alejandro Jiménez Cano +3
Observational evidence, together with practical computations and modeling, supports a Euclidean spatial sector in the current cosmological model based on the FLRW metric. This, how…
Homothetic expansion of polyhedra in the two-vertex model: emergence of FLRW
Iñaki Garay, Sergio Rodríguez-González, Raül Vera
The cosmological behavior associated to a U(N)-symmetry reduced sector of the loop-quantum-gravity truncation known as the two-vertex model is further explored in this work. We con…
New characterization of Robertson-Walker geometries involving a single timelike curve
Marc Mars, Raül Vera
Our aim in this paper is two-fold. We establish a novel geometric characterization of the Roberson-Walker (RW) spacetime and, along the process, we find a canonical form of the RW…
Singularity resolution by holonomy corrections: Spherical charged black holes in cosmological backgrounds
Asier Alonso-Bardaji, David Brizuela, Raül Vera
We study spherical charged black holes in the presence of a cosmological constant with corrections motivated by the theory of loop quantum gravity. The effective theory is construc…