A preprint posted to arXiv studies how multipartite entanglement evolves in quantum walks, a key concept in quantum information that helps quantum systems outperform classical computers. The authors, working in optical settings, developed ways to calculate a geometric measure of entanglement for different splits of a single quantum walker and examined multi-walker cases too. Their approach combined numerical simulations on large systems under various initial conditions with exact mathematical expressions for entanglement dynamics in specific bipartitions based on coin degrees of freedom; they used these to describe long-term asymptotic behavior and showed that entanglement patterns become typical across ensembles of random optical networks. As this is a preprint (arXiv:2603.24679), it has not yet undergone peer review. The work is purely theoretical and computational with no experimental data or human-subject sample sizes; limitations include the challenge of scaling numerical methods to even larger systems. Source: https://arxiv.org/abs/2603.24679