Improved interpolating fields for hadrons at non-zero momentum
  We generalize Gaussian/Wuppertal smearing in order to produce non-spherical wave functions. We show that we can achieve a reduction in the noise-to-signal ratio for correlation functions of certain hadrons at non-zero momentum, while at the same time preserving a good projection on the ground state. 
Michele Della Morte, Benjamin Jaeger, Thomas Rae and Hartmut Wittig
hep-lat