  We present a unified treatment of Zitterbewegung phenomena for a wide class
of systems including spintronic, graphene, and superconducting systems. We
derive an explicit expression for the time-dependence of the position operator
of the quasiparticles which can be decomposed into a mean part and an
oscillatory term. The latter corresponds to the Zitterbewegung. To apply our
result for different systems one needs to use only vector algebra instead of
the more complicated operator algebra.
