  In this study for particular states of bipartite quantum system in 2n?2m
dimensional Hilbert space state, similar to m or n-qubit density matrices
represented in Bloch sphere we call them generalized Bloch sphere states(GBSS),
we give an efficient optimization procedure so that analytic evaluation of
quantum discord can be performed. Using this optimization procedure, we find an
exact analytical formula for the optimum positive operator valued measure
(POVM) that maximize the measure of the classical correlation for these states.
The presented optimization procedure also is used to show that for any concave
entropy function the same POVMs are sufficient for quantum discord of mentioned
states. Furthermore, We show that such optimization procedure can be used to
calculate the geometric measure of quantum discord (GMQD) and then an explicit
formula for GMQD is given. Finally, a complete geometric view is presented for
quantum discord of GBSS. Keywords: Quantum Discord, Generalized Bloch Sphere
States, Dirac matrices, Bipartite Quantum System. PACs Index: 03.67.-a,
03.65.Ta, 03.65.Ud
