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arXiv · 2111.09347

The Quantum Eraser Paradox

Colm Bracken·Jonte R. Hance·Sabine Hossenfelder
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Abstract

The Delayed-Choice Quantum Eraser experiment is commonly interpreted as implying that in quantum mechanics a choice made at one time can influence an earlier event. We here suggest an extension of the experiment that results in a paradox when interpreted using a local realist interpretation combined with backward causation ("retrocausality"). We argue that resolving the paradox requires giving up the idea that, in quantum mechanics, a choice can influence the past, and that it instead requires a violation of Statistical Independence without retrocausality. We speculate what the outcome of the experiment would be.

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Colm Bracken, Jonte R. Hance, Sabine Hossenfelder. 2021-11-17. The Quantum Eraser Paradox. https://arxiv.org/abs/2111.09347

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