Group field theory condensate cosmology: An appetizer

AGA Pithis, M Sakellariadou - Universe, 2019 - mdpi.com
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 …

Zakopane lectures on loop gravity

C Rovelli - arxiv preprint arxiv:1102.3660, 2011 - arxiv.org
arxiv:1102.3660v5 [gr-qc] 3 Aug 2011 Page 1 Zakopane lectures on loop gravity Carlo Rovelli
Centre de Physique Théorique de Luminy, Case 907, F-13288 Marseille, EU (Dated: August 4 …

Introduction to loop quantum cosmology

K Banerjee, G Calcagni, M Martin-Benito - … . Symmetry, Integrability and …, 2012 - emis.de
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 …

The universe as a quantum gravity condensate

D Oriti - Comptes Rendus. Physique, 2017 - comptes-rendus.academie-sciences …
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 …

Cosmological implications of interacting Group Field Theory models: cyclic Universe and accelerated expansion

M De Cesare, AGA Pithis, M Sakellariadou - Physical Review D, 2016 - APS
We study the cosmological implications of interactions between spacetime quanta in the
group field theory (GFT) approach to quantum gravity from a phenomenological perspective …

Markov chain Monte Carlo methods for graph refinement in spinfoam cosmology

P Frisoni, F Gozzini, F Vidotto - Classical and Quantum Gravity, 2023 - iopscience.iop.org
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 …

From the discrete to the continuous: Towards a cylindrically consistent dynamics

B Dittrich - New Journal of Physics, 2012 - iopscience.iop.org
Discrete models usually represent approximations to continuum physics. Cylindrical
consistency provides a framework in which discretizations exactly mirror the continuum limit …

Lorentzian quantum cosmology goes simplicial

B Dittrich, S Gielen, S Schander - Classical and Quantum Gravity, 2022 - iopscience.iop.org
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 …

Holonomy spin foam models: Asymptotic geometry of the partition function

F Hellmann, W Kaminski - Journal of High Energy Physics, 2013 - Springer
JHEP10(2013)165 Page 1 JHEP10(2013)165 Published for SISSA by Springer Received:
August 13, 2013 Accepted: September 17, 2013 Published: October 24, 2013 Holonomy …

Relational evolution of effectively interacting group field theory quantum gravity condensates

AGA Pithis, M Sakellariadou - Physical Review D, 2017 - APS
We study the impact of effective interactions onto relationally evolving group field theory
(GFT) condensates based on real-valued fields. In a first step we show that a free …