Publication Date
8-1-2023
Document Type
Article
Publication Title
Symmetry
Volume
15
Issue
8
DOI
10.3390/sym15081539
Abstract
For any experiment with two entangled photons, some joint measurement outcomes can have zero probability for a precise choice of basis. These perfect anti-correlations would seem to be a purely quantum phenomenon. It is, therefore, surprising that these very anti-correlations are also evident when the input to the same experiment is analyzed via classical electromagnetic theory. Demonstrating this quantum–classical connection for arbitrary two-photon states and analyzing why it is successful motivates alternative perspectives concerning entanglement, the path integral, and other topics in quantum foundations.
Keywords
correspondence principle, entanglement, parametric down-conversion, quantum foundations, three-wave mixing
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Department
Physics and Astronomy
Recommended Citation
Ken Wharton and Emily Adlam. "Entangled Photon Anti-Correlations Are Evident from Classical Electromagnetism" Symmetry (2023). https://doi.org/10.3390/sym15081539
