  We studied the formalism for construction of Bargmann invariants (BIs) as
quantum mechanical geometric phases and identified the CP invarince with the
rephasing invariant phases in neutral kaon system, kaon decays, baryogenesis
and leptogenesis. We develop this formalism to express the CP violation in
terms of the Bargmann invariants, which allow us to interpret them as geometric
phases. We then comment on the application of such generalized treatment of CP
phases.
