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    • Coherent states and classical radiative observables in the S-matrix formalism 

      Gonzo, Riccardo (Trinity College Dublin. School of Mathematics. Discipline of Pure & Applied Mathematics, 2022)
      In this thesis, we study classical radiative observables perturbatively in terms of on-shell scattering amplitudes. In particular, we focus primarily on the two-body problem in gauge and gravitational theories by using an ...