Fermion condensates in two colours finite density QCD at strong coupling

We study unquenched lattice SU(2) at nonzero chemical potential at strong c oupling and with eight flavours of Kogut-Susskind fermions, introducing a d iquark source term we analyze the behaviour of different types of fermion c ondensates. Using a non standard approach we can obtain results at zero ext ernal source without extrapolations. We find strong evidences for a (high d ensity) second order phase transition where a diquark condensate appears. T he corresponding critical chemical potential is in good agreement with half the pion mass. (C) 2000 Published by Elsevier Science B.V.