  Quantum vorticity in polariton systems has been traditionally investigated
within the frame of many-body phenomena under the mean-field or coherent
approaches. In the present work, we show that the fully quantized picture
describes richer dynamics for the vortex core at the quantum coupling limit,
where two systems exchange an indivisible excitation. The quantum correlations
intrinsic to our formalism account for the emergence of a family of
trajectories that differ from the circular paths known in macroscopic vorticity
phenomena. These results indicate that there exists a criterion to
differentiate the behavior at the edge between the quantum and classical
polariton vortex dynamics.
