Abstract The Laser Interferometer Space Antenna (LISA) has the potential to reveal wonders
about the fundamental theory of nature at play in the extreme gravity regime, where the …

In this paper, which is of programmatic rather than quantitative nature, we aim to further
delineate and sharpen the future potential of the LISA mission in the area of fundamental …

The recent discovery by Advanced LIGO and Advanced Virgo of a gravitational wave signal
from a binary neutron star inspiral has enabled tests of general relativity (GR) with this new …

70 AIM, UMR 7158, CEA/DRF, CNRS, Université Paris Diderot, Irfu/Service d'Astrophysique,
Centre de Saclay, FR-91191 Gif-sur-Yvette, France

The gravitational wave observations GW150914 and GW151226 by Advanced LIGO provide
the first opportunity to learn about physics in the extreme gravity environment of coalescing …

One century after its formulation, Einstein's general relativity (GR) has made remarkable
predictions and turned out to be compatible with all experimental tests. Most of these tests …

The observation of the inspiral and merger of compact binaries by the LIGO/Virgo
collaboration ushered in a new era in the study of strong-field gravity. We review current and …

In a recent paper we showed that in shift-symmetric Horndeski theory the scalar field is
forced to obtain a nontrivial configuration in black hole spacetimes, unless a linear coupling …

We study extreme mass-ratio binary systems in which a stellar mass compact object spirals
into a supermassive black hole surrounded by a scalar cloud. Scalar clouds can form …

This review is focused on tests of Einstein's theory of general relativity with gravitational
waves that are detectable by ground-based interferometers and pulsar-timing experiments …