A Wilsonian Energy-Momentum Tensor
  For local conformal field theories, it is shown how to construct an expression for the energy-momentum tensor in terms of a Wilsonian effective Lagrangian. Tracelessness implies a single, unintegrated equation which enforces both the Exact Renormalization Group equation and its partner encoding invariance under special conformal transformations. 
Oliver J. Rosten
hep-th cond-mat.stat-mech hep-ph