A Short Communication of the Recent White Paper by the FundamentalPhysics Working Group of Laser Interferometer Space Antenna

We give a short overview of the recently appeared white paper on fundamental physics with LISA. In view of the adoption by ESA of the LISA (Laser Interferometer Space Antenna) mission the working groups for the different scientific topics, which will be addressed by LISA, have produced so called white papers. The aim of the white papers is to present the today’s knowledge on the various scientific goals which are expected to be investigated by LISA. Among the scientific questions LISA will address there are also issues on the fundamental nature of gravity. LISA will probe it in the regime where the gravitational interaction is both strong and dynamical