The Quantum Eraser Paradox
Quantum Physics
2021-11-29 v2 History and Philosophy of Physics
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.
Keywords
Cite
@article{arxiv.2111.09347,
title = {The Quantum Eraser Paradox},
author = {Colm Bracken and Jonte R. Hance and Sabine Hossenfelder},
journal= {arXiv preprint arXiv:2111.09347},
year = {2021}
}
Comments
8 pages, 6 figures. v2: minor fixes, references added