  We study operator correlations of a spinful Luttinger liquid after
introducing a non-Hermitian interaction quench, yielding supersonic modes and
dominant superconducting correlations as signatures of the non-unitary dynamics
as well as spin-charge separation. A comparative analysis with the Hermitian
counterpart, i.e, when the quench is Hermitian, shows a significant difference
in the behavior of the model. We derive exact expressions for different
operator correlations and show that the superconducting correlations decay
slower than the charge and spin-density wave correlations, especially, within
the short-time limit, and at the long-time limit all the operator correlations
merge differed only by phase factors in the case of non-hermitian interaction
quench whereas they do not merge in the case of Hermitian interaction quench.
In both cases known Luttinger liquid universality is retained at the long time
limit. We also analyze how the dynamics of operator correlations vary in the
presence of anisotropy in the quenching parameters.
