Unquenched Numerical Stochastic Perturbation Theory
  The inclusion of fermionic loops contribution in Numerical Stochastic Perturbation Theory (NSPT) has a nice feature: it does not cost so much (provided only that an FFT can be implemented in a fairly efficient way). Focusing on Lattice SU(3), we report on the performance of the current implementation of the algorithm and the status of first computations undertaken. 
F. Di Renzo, V. Miccio (Parma U.) and L. Scorzato (DESY)