  This paper explores the entanglement dynamics generated by interacting
two-particle quantum walks on degree-regular and -irregular graphs. We
performed spectral analysis of the time-evolution of both the particle
probability distribution and the entanglement between the two particles for
various interaction strength. While the particle probability distributions are
stable and not sensitive to perturbations in the interaction strength, the
entanglement dynamics are found to be much more sensitive to system variations.
This property may be utilised to probe small differences in the system
parameters.
