Résumé |
We describe the formulation of N=4 super-Yang-Mills theory in Lorentz harmonics chiral (LHC) superspace. It
is an alternative to the twistor approach, based on the conceptually simpler notion of harmonic functions on
the Lorentz group. We explain how the theory is quantized and how the full non-chiral supersymmetry is
restored. As an application we show how the correlation functions and form factors of the N=4 stress-tensor
multiplet are computed from first principles. These quantities are intimately related to scattering amplitudes. |