Document Type
Article
Publication Date
2-21-2024
Abstract
Yuan and Feng (Eur. Phys. J. Plus 138:70, 2023) recently proposed a modification of the nested Mach–Zehnder interferometer experiment performed by Danan et al. (Phys. Rev. Lett. 111:240402, 2013) and argued that photons give “contradictory” answers about where they have been, when traces are locally imprinted on them in different ways. They concluded that their results are comprehensible from what they call the “three-path interference viewpoint,” but difficult to explain from the “discontinuous trajectory” viewpoint advocated by Danan et al. We argue that the weak trace approach (the basis of the “discontinuous trajectory” viewpoint) provides a consistent explanation of the Yuan–Feng experiment. The contradictory messages of the photons are just another example of photons lying about where they have been when the experimental method of Danan et al. is applied in an inappropriate setup.
Recommended Citation
Reznik, G., Versmold, C., Dziewior, J. et al. Comment on “photons can tell ‘contradictory’ answer about where they have been”. Eur. Phys. J. Plus 139, 181 (2024). https://doi.org/10.1140/epjp/s13360-023-04818-0
Peer Reviewed
1
Copyright
The authors
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Comments
This article was originally published in European Physical Journal Plus, volume 139, in 2024. https://doi.org/10.1140/epjp/s13360-023-04818-0