Delayed Choice Quantum Eraser Experiment Revisited: Causality and Informational Coherence
Quantum Physics
2025-12-23 v3
Abstract
An operationally well-defined delayed-choice quantum-eraser experiment is proposed, realizing a genuine delayed choice within presently available quantum-optical technology. A multimode quantum memory supplies a controlled and verifiable delay, ensuring that the choice operation is applied strictly after the observation event. Electronic single-photon interference detection measurements furnish a direct statistical discriminator between the causal and informational coherence hypotheses, based solely on marginal detection statistics and without any post-selection.
Keywords
Cite
@article{arxiv.2511.22827,
title = {Delayed Choice Quantum Eraser Experiment Revisited: Causality and Informational Coherence},
author = {Taku Ohwada},
journal= {arXiv preprint arXiv:2511.22827},
year = {2025}
}