Chiral symmetry and mixing of axial and vector correlators in matter

The effect of mixing of the vector and axial vector correlation functions in the nuclear medium arising from the interaction of nuclear pions with corresponding interpolating currents is considered. It is shown that the difference between ρ and a1 meson correlators gets smaller with increasing nuclear density. This reflects partial restoration of chiral symmetry whereas the individual correlators could either decrease or increase with density depending on the model used for the phenomenological spectral function.