  We derive the equation of state (EOS) for electrically charge neutral dense
matter using Quantum Hadrodynamics (QHD) model. This is carried out in a
nonperturbative manner including quantum corrections for baryons through a
realignment of vacuum with baryon-antibaryon condensates. This yields the
results of relativistic Hartree approximation of summing over baryonic tadpole
diagrams. The quantum corrections from the scalar meson is also taken into
account in a similar way. This leads to a softening of the equation of state
for the hyperonic matter. The formalism also allows us to do a self consistent
calculation of the in-medium sigma meson mass. The effects of such quantum
corrections on the composition of charge neutral dense matter is considered.
The effect of the resulting EOS on the structure of the neutron stars is also
studied.
