The Quantum Eraser Demystified: A Relational Interpretation of Interference and Information

This article develops a relational interpretation of the quantum eraser experiment, showing that interference and which‑path information are not intrinsic properties of quantum systems but context‑dependent relational structures. By analyzing the experiment without invoking retrocausality or observer‑dependent collapse, the paper demonstrates that the apparent paradox arises from mixing incompatible informational frames. Interference is recovered when relational coherence is preserved, while its disappearance corresponds to a change in the network of informational relations rather than a physical erasure. The model clarifies the conceptual foundations of the quantum eraser and provides a unified account of interference, measurement, and information flow.