QEM-5: The Upper Propagation Limit of Flip-Wave and the Causal Structure of Entanglement
Wangyoufu
Abstract
This work extends the Quantum Entanglement Mechanics (QEM) framework to explore the upper propagation limit of flip-waves within multi-body entanglement systems. We introduce a causal-cone model that defines the boundary of correlation spread and demonstrate that flip-wave coherence cannot propagate faster than the intrinsic coupling velocity of the phase lattice. This finding bridges the topology of entanglement, the structure of causal boundaries, and the limits of quantum-information transmission. Series note: This work is part of the Quantum Entanglement Mechanics (QEM) series by Youfu Wang (2025).