2001/03/26 by M. D. Reid, Reid, M. D.
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
paper · pdf · doi:10.48550/arxiv.quant-ph/0103142
openalex publication_date 2001/03/26 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
It is shown that a criterion used to demonstrate realization of the 1935 Einstein-Podolsky-Rosen (EPR) gedanken experiment is sufficient to demonstrate quantum entanglement. A further set of measurable criteria sufficient to demonstrate EPR gedanken experiment is proposed, these being the set of criteria sufficient to demonstrate entanglement, by way of a measured violation of a necessary condition of separability. In this way, provided the spatial separation of systems is sufficient to ensure EPR's locality hypothesis, it is shown how a measured demonstration of entanglement will, at least, be equivalent to a demonstration of the EPR gedanken experiment. Using hidden variables it is explained how such demonstrations are a direct manifestation of the inconsistency of local realism with quantum mechanics.