Einstein-Podolsky-Rosen correlations of Dirac particles - quantum field   theory approach
  We calculate correlation function in the Einstein--Podolsky--Rosen type of experiment with massive relativistic Dirac particles in the framework of the quantum field theory formalism. We perform our calculations for states which are physically interesting and transforms covariantly under the full Lorentz group action, i.e. for pseudoscalar and vector state. 
Pawel Caban, Jakub Rembielinski