Light-Cone Structure of Propagation of Entanglement

Israel Michael Sigal

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arXiv · 2604.27170

Light-Cone Structure of Propagation of Entanglement

Israel Michael Sigal

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Abstract

For a wide class of bipartite systems with localized couplings, we establish existence of an effective light-cone for propagation of entanglement. This result yields a hard lower bound on the time it takes, under ideal conditions (no loss, no decoherence), to transport entanglement to a distant location (say, a node of a graph-structured quantum network), or to maintain it there.

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Israel Michael Sigal. 2026-04-29. Light-Cone Structure of Propagation of Entanglement. https://arxiv.org/abs/2604.27170

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