Delayed Choice Quantum Eraser Experiment Revisited: Causality and Informational Coherence
Taku Ohwada
TL;DR
This paper presents a refined delayed-choice quantum eraser experiment using quantum memory to control timing, enabling direct statistical tests of causality versus informational coherence without post-selection.
Contribution
It introduces a genuine delayed-choice setup with quantum memory, allowing for direct discrimination between causal and informational coherence hypotheses using marginal detection statistics.
Findings
Successful implementation of delayed choice with quantum memory
Direct statistical discrimination between hypotheses
No post-selection required for analysis
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.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsQuantum Mechanics and Applications · Quantum Information and Cryptography · Quantum optics and atomic interactions