Quantum gravity from causal dynamical triangulations: a review

R Loll - Classical and Quantum Gravity, 2019 - iopscience.iop.org
This topical review gives a comprehensive overview and assessment of recent results in
causal dynamical triangulations, a modern formulation of lattice gravity, whose aim is to …

[HTML][HTML] Critical reflections on asymptotically safe gravity

A Bonanno, A Eichhorn, H Gies, JM Pawlowski… - Frontiers in …, 2020 - frontiersin.org
Asymptotic safety is a theoretical proposal for the ultraviolet completion of quantum field
theories, in particular for quantum gravity. Significant progress on this program has led to a …

Nonperturbative quantum gravity

J Ambjørn, A Görlich, J Jurkiewicz, R Loll - Physics Reports, 2012 - Elsevier
Asymptotic safety describes a scenario in which general relativity can be quantized as a
conventional field theory, despite being nonrenormalizable when expanding it around a …

[HTML][HTML] Quantum gravity: a fluctuating point of view

JM Pawlowski, M Reichert - Frontiers in Physics, 2021 - frontiersin.org
In this contribution, we discuss the asymptotic safety scenario for quantum gravity with a
functional renormalization group approach that disentangles dynamical metric fluctuations …

Spin networks and quantum gravity

C Rovelli, L Smolin - Physical Review D, 1995 - APS
We introduce a new basis on the state space of nonperturbative quantum gravity. The states
of this basis are linearly independent, are well defined in both the loop representation and …

[图书][B] Quantum geometry: a statistical field theory approach

J Ambjørn, B Durhuus, Þ Jónsson - 1997 - books.google.com
This graduate level text describes in a unified fashion the statistical mechanics of random
walks, random surfaces and random higher dimensional manifolds with an emphasis on the …

Non-perturbative Lorentzian quantum gravity, causality and topology change

J Ambjørn, R Loll - Nuclear Physics B, 1998 - Elsevier
We formulate a non-perturbative lattice model of two-dimensional Lorentzian quantum
gravity by performing the path integral over geometries with a causal structure. The model …

Emergence of a 4D world from causal quantum gravity

J Ambjørn, J Jurkiewicz, R Loll - Physical review letters, 2004 - APS
Causal Dynamical Triangulations in four dimensions provide a background-independent
definition of the sum over geometries in nonperturbative quantum gravity, with a positive …

Reconstructing the universe

J Ambjørn, J Jurkiewicz, R Loll - … Review D—Particles, Fields, Gravitation, and …, 2005 - APS
We provide detailed evidence for the claim that nonperturbative quantum gravity, defined
through state sums of causal triangulated geometries, possesses a large-scale limit in which …

Quantum gravity in 30 questions

R Loll, G Fabiano, D Frattulillo, F Wagner - arXiv preprint arXiv …, 2022 - arxiv.org
Quantum gravity is the missing piece in our understanding of the fundamental interactions
today. Given recent observational breakthroughs in gravity, providing a quantum theory for …