We establish a structural correspondence between Tononi's Integrated Information Theory (IIT 3.0) and fidelity composition in quantum repeater networks. Using quantum mutual information as the bridging quantity, we show that the Sage Constant S = 0.85 maps to a utility threshold analogous to IIT's φ > 0 condition. We demonstrate that four of IIT's five postulates map onto verifiable properties of quantum networks, with one notable exception: the exclusion postulate fails for min-cut mutual information in linear chains — a non-trivial testable prediction. We validate our framework using discrete-event simulation achieving agreement with experimental data from Chen et al. (Nature 589, 2021) to within Δ = 0.010 in fidelity.
Tylor Flett (Wed,) studied this question.