Testing nonlocal gravity with Lunar Laser Ranging
arXiv:1812.11181 · doi:10.1088/1475-7516/2019/02/035
Abstract
We study the impact of the limit on from Lunar Laser Ranging on "nonlocal gravity", i.e. on models of the quantum effective action of gravity that include nonlocal terms relevant in the infrared, such as the "RR" and "RT" models proposed by our group, and the Deser-Woodard (DW) model. We elaborate on the analysis of Barreira et al. [1] and we confirm their findings that (under plausible assumptions such as the absence of strong backreaction from non-linear structures), the RR model is ruled out. We also show that the mechanism of "perfect screening for free" suggested for the DW model actually does not work and the DW model is also ruled out. In contrast, the RT model passes all phenomenological consistency tests and is still a viable candidate.
46 pages, 4 figures
References in corpus (16)
- On the Geometry of the String Landscape and the Swampland
- Beyond the Cosmological Standard Model
- A refinement of the Gribov-Zwanziger approach in the Landau gauge: infrared propagators in harmony with the lattice results
- De Sitter Space and Eternity
- Cosmological perturbations and structure formation in nonlocal infrared modifications of general relativity
- Non-Local Modification of Gravity and the Cosmological Constant Problem
- Predictive Power of Strong Coupling in Theories with Large Distance Modified Gravity
- Reconstructing the Distortion Function for Nonlocal Cosmology
- How well is our universe described by an FLRW model?
- Generalised Quadratic Curvature, Non-Local Infrared Modifications of Gravity and Newtonian Potentials
- Non-local gravity and comparison with observational datasets
- Infrared instability of the de Sitter space
- Nonlinear structure formation in Nonlocal Gravity
- Does small scale structure significantly affect cosmological dynamics?
- Quantum Gravity inspired nonlocal gravity model
- de Sitter Space is Unstable in Quantum Gravity