  Some consequences of a classical vector field (chromo-electromagnetic field)
coupled to quarks, which undergo to superfluid and/or superconductive states
with diquark / diantiquark condensation, are investigated. For this, one scalar
field exchange is considered in the lines investigated by Pisarski and Rischke
\cite{PISARSKI-RISCHKE} in the mean field approach. Some effects and possible
consequences are discussed.
