Suppression of Quantum Corrections by Classical Backgrounds
  We use heat-kernel techniques in order to compute the one-loop effective action in the cubic Galileon theory for a background that realizes the Vainshtein mechanism. We find that the UV divergences are suppressed relative to the predictions of standard perturbation theory at length scales below the Vainshtein radius. 
Nikolaos Brouzakis, Nikolaos Tetradis
hep-th