@article{10902/31621, year = {2022}, url = {https://hdl.handle.net/10902/31621}, 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 gravitational waves 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.}, publisher = {Springer Nature}, publisher = {Living Reviews in Relativity, 2022, 25(4)}, title = {New horizons for fundamental physics with LISA}, author = {Arun, K. G and Belgacem, Enis and Benkel, Robert and Bernard, Laura and Berti, Emanuele and Bertone, Gianfranco and Besancon, Marc and Blas, Diego and Böhmer, Christian G. and Brito, Richard and Calcagni, Gianluca and Cardenas-Avendaño, Alejandro and Clough, Katy and Crisostomi, Marco and Luca, Valerio De and Doneva, Daniela and Escoffier, Stephanie and Ezquiaga, José María and Ferreira, Pedro G. and Kavanagh, Bradley James}, }