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Notes on gravitational wave amplitude evolution beyond null geodesics
Charles Dalang
In these notes, we extend a formalism for computing the amplitude of gravitational-waves (GWs) beyond null-geodesic propagation, as may arise in alternative theories of gravity. We…
Multi-messenger lensing time delay as a probe of the graviton mass
Elena Colangeli, Charles Dalang, Tessa Baker
Gravitational lensing is a powerful probe of cosmology and astrophysics. With the prospect of the first strongly lensed gravitational waves on the horizon, we highlight an opportun…
Horndeski theories and beyond from higher dimensions
Soumya Jana, Charles Dalang, Lucas Lombriser
The Einstein-Hilbert action with a cosmological constant is the most general local four-dimensional action leading to second-order derivative equations of motion that are symmetric…
Prospects for Fundamental Physics with LISA
Enrico Barausse, Emanuele Berti, Thomas Hertog +318
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…
Horndeski gravity and standard sirens
Charles Dalang, Pierre Fleury, Lucas Lombriser
Standard sirens have been proposed as probes of alternative theories of gravity, such as Horndeski models. Hitherto, all studies have been conducted on a homogeneous-isotropic cosm…