Cabello Quintero, Adán2024-03-122024-03-122005-11-18Cabello Quintero, A. (2005). Stronger two-observer all-versus-nothing violation of local realism. Physical Review Letters, 95 (21), 210401-1-210401-4. https://doi.org/10.1103/PhysRevLett.95.210401.0031-90071079-7114https://hdl.handle.net/11441/156116We introduce a two-observer all-versus-nothing proof of Bell’s theorem which reduces the number of required quantum predictions from 9 [A. Cabello, Phys. Rev. Lett. 87, 010403 (2001); Z.-B. Chen et al., Phys. Rev. Lett. 90, 160408 (2003)] to 4, provides a greater amount of evidence against local realism, reduces the detection efficiency requirements for a conclusive experimental test of Bell’s theorem, and leads to a Bell inequality which resembles Mermin’s inequality for three observers [N. D. Mermin, Phys. Rev. Lett. 65, 1838 (1990)] but requires only two observers.application/pdf5 p.engAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/Bell’s theoremTwo-observer all-versus-nothing proofinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccesshttps://doi.org/10.1103/PhysRevLett.95.210401