Speaker
Claudio Gambino
(Istituto Nazionale di Fisica Nucleare)
Description
Inspired by the scattering amplitude program applied to General Relativity, we define the most general energy-momentum tensor constructed from mass and spin in momentum space and arbitrary dimensions. Through this approach, we establish a one-to-one correspondence between the form factors that characterize the source and the gravitational multipole moments of the induced spacetime, providing a precise definition of source multipoles in a relativistic context and identifying a new class of multipoles, which we call “stress multipoles”. We then apply this formalism to determine the source of rotating black holes and subsequently use it to construct horizonless Kerr mimickers.
