Carl A. Kocher
*The final, formatted version of the article will be published soon.
PERSPECTIVE article
Front. Quantum Sci. Technol.
Sec. Quantum Information Theory
Volume 3 - 2024 |
doi: 10.3389/frqst.2024.1451239
This article is part of the Research Topic 100 Years of Quantum Science and Technology View all articles
Quantum Entanglement of Optical Photons: The First Experiment, 1964-67
Provisionally accepted- University of California, Santa Barbara, Santa Barbara, United States
The first experimental observation of entangled visible light was achieved by optically exciting free atoms of calcium and detecting pairs of photons emitted in a two-stage cascade. The polarizations of the entangled photons were observed to be correlated, in agreement with quantum theory. This review describes the rationale, methodology, challenges, and results, including experimental details not previously published.
Keywords: entanglement, EPR paradox, Atomic cascade, Photon counting, reduction postulate, Polarization correlation, Bell inequalities
Received: 18 Jun 2024; Accepted: 01 Jul 2024.
Copyright: © 2024 Kocher. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence:
Carl A. Kocher, University of California, Santa Barbara, Santa Barbara, United States
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