• S-matrix from the metaplectic representation 

      Várilly Boyle, Joseph C.; Gracia Bondía, José M. (1992-03)
      We show how the S-matrix for bosons in an external field can be derived directly from the infinite dimensional metaplectic representation, in terms of the classical scattering operator.
    • The metaplectic representation and boson fields 

      Gracia Bondía, José M.; Várilly Boyle, Joseph C. (1991-12)
      We construct explicitly the infinite-dimensional metaplectic representation and show how its use simplifies and rigorizes several questions in bosonic Quantum Field Theory. The representation permutes Gaussian elements in ...