2021/01/16 by B. S. Ham, Becky Ham, Ham, B. S.
Computer Science · Physics and Astronomy · #FOS: Physical sciences #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum Physics (quant-ph) #Spectroscopy and Quantum Chemical Studies #quant-ph
paper · pdf · doi:10.48550/arxiv.2101.06463
7 pages, 2 figures
arxiv created 2021/01/16 · openalex publication_date 2021/01/16 · arxiv updated 2021/01/19 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Franson-type nonlocal correlation is a testing tool for Bell inequality violation using noninterfering interferometers, where coincidence measurements involve an interference fringe of g^((1)) correlation between noninterfering photon pairs. Like the Bell inequality, Franson correlation is also limited to a microscopic regime of entangled photon pairs. Here, randomness-based macroscopic Franson-type nonlocal correlation is presented using polarization-basis coherent superposition of laser light, where probabilistic randomness between bipartite orthonormal bases plays an important role for both Bell inequality and the g^((1)) correlation. Without contradiction to the conventional understanding of quantumness limited by the particle nature of photons, the proposed Franson correlation can also be extended to a general scheme of macroscopic regimes via coherent superposition.