  The Gutzwiller projection is shown to induce nontrivial correlation between
the spinon and the holon in the slave Boson theory of the $t-J$ model. We find
this correlation is responsible some subtle differences between the slave Boson
mean field theory and the Gutzwiller projected wave function(GWF), among which
the particle-hole asymmetry in the quasiparticle weight calculated from the GWF
is a particular example.
