Results 81 to 90 of about 173,760 (383)
Testing different approaches to quantum gravity with cosmology: An overview [PDF]
, 2017 Among the available quantum gravity proposals, string theory, loop quantum gravity, non-commutative geometry, group field theory, causal sets, asymptotic safety, causal dynamical triangulation, emergent gravity are among the best motivated models.
Barrau, Aurélien
core +3 more sources
One-dimensional Quantum Gravity and the Schwarzian theory [PDF]
Journal of High Energy Physics, 2021 We develop a model of one-dimensional (Conformal) Quantum Gravity. By discussing the connection between Goldstone and gauge theories, we establish that this model effectively computes the partition function of the Schwarzian theory where the SL(2, ℝ ...
D. Anninos +2 more
semanticscholar +1 more source
Black Hole Evaporation: A Perspective from Loop Quantum Gravity [PDF]
Universe, 2020 A personal perspective on the black hole evaporation process is presented using, as guidelines, inputs from: (i) loop quantum gravity, (ii) simplified models where concrete results have been obtained, and, (iii) semi-classical quantum general relativity.
A. Ashtekar
semanticscholar +1 more source
2D gravitational Mabuchi action on Riemann surfaces with boundaries
Journal of High Energy Physics, 2017 We study the gravitational action induced by coupling two-dimensional non-conformal, massive matter to gravity on a Riemann surface with boundaries. A small-mass expansion gives back the Liouville action in the massless limit, while the first-order mass ...
Adel Bilal, Corinne de Lacroix
doaj +1 more source
Discrete Gravity Models and Loop Quantum Gravity: a Short Review [PDF]
Symmetry, Integrability and Geometry: Methods and Applications, 2012 v2: many amendments, matches published ...
Dupuis, Maite +2 more
openaire +5 more sources
The Bronstein Hypercube of Quantum Gravity [PDF]
Beyond Spacetime, 2018 We argue for enlarging the traditional view of quantum gravity, based on ‘quantizing GR’, to include explicitly the non-spatiotemporal nature of the fundamental building blocks suggested by several modern quantum gravity approaches (and some semi ...
D. Oriti
semanticscholar +1 more source
Asymptotic safety of quantum gravity beyond Ricci scalars [PDF]
, 2017 We investigate the asymptotic safety conjecture for quantum gravity including curvature invariants beyond Ricci scalars. Our strategy is put to work for families of gravitational actions which depend on functions of the Ricci scalar, the Ricci tensor ...
K. Falls +4 more
semanticscholar +1 more source
An experiment for observing quantum gravity phenomena using twin table-top 3D interferometers [PDF]
Classical and quantum gravity, 2020 Theories of quantum gravity based on the holographic principle predict the existence of quantum fluctuations of distance measurements that accumulate and exhibit correlations over macroscopic distances.
Sander M. Vermeulen +6 more
semanticscholar +1 more source
On the symmetries of BF models and their relation with gravity [PDF]
, 2001 The perturbative finiteness of various topological models (e.g. BF models) has its origin in an extra symmetry of the gauge-fixed action, the so-called vector supersymmetry.
A. Boresch +25 more
core +3 more sources