New Horizons for Fundamental Physics with LISA
K. G. Arun, Enis Belgacem, Robert Benkel, Laura Bernard, Emanuele, Berti, Gianfranco Bertone, Marc Besancon, Diego Blas, Christian G. B\"ohmer,, Richard Brito, Gianluca Calcagni, Alejandro Cardenas-Avenda\~no, Katy Clough,, Marco Crisostomi, Valerio De Luca, Daniela Doneva
TL;DR
LISA is a space-based gravitational wave observatory poised to revolutionize our understanding of fundamental physics in extreme gravity regimes, with ongoing research to maximize its scientific potential.
Contribution
This white paper outlines current research directions and future opportunities for using LISA to explore fundamental physics through gravitational wave observations.
Findings
LISA can probe strong-field gravity regimes.
Research connections are vital for maximizing LISA's scientific impact.
Future research directions are identified for fundamental physics with LISA.
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 gravitational interaction is both strong and dynamical. In this white paper, the Fundamental Physics Working Group of the LISA Consortium summarizes the current topics in fundamental physics where LISA observations of GWs can be expected to provide key input. We provide the briefest of reviews to then delineate avenues for future research directions and to discuss connections between this working group, other working groups and the consortium work package teams. These connections must be developed for LISA to live up to its science potential in these areas.
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