New Signals in Precision Gravity Tests and Beyond

TL;DR

This paper reviews recent advances in testing spacetime symmetries with gravity, highlighting new theoretical insights for short-range gravity tests and experimental efforts involving gravitational waves, solar-system, and laboratory experiments.

Contribution

It introduces new theoretical results for short-range gravity tests, emphasizing multiple length scales and potential large non-Newtonian forces at short distances.

Findings

New theoretical models for short-range gravity with multiple length scales

Experimental evidence constraining violations of spacetime symmetries

Potential detection of non-Newtonian forces at short distances

Abstract

We review the status of tests of spacetime symmetries with gravity. Recent theoretical and experimental work has involved gravitational wave signals, precision solar-system tests, and sensitive laboratory tests searching for violations of spacetime symmetries. We present some new theoretical results relevant for short-range gravity tests, with features of multiple length scales, and possible large non-Newtonian forces at short distances.