Prabhakar, ShashiShashiPrabhakarReddy, Salla GangiSalla GangiReddyAadhi, A.A.AadhiPerumangatt, ChithrabhanuChithrabhanuPerumangattSamanta, G. K.G. K.SamantaSingh, R. P.R. P.Singh2025-08-302025-08-302015-08-1410.1103/PhysRevA.92.0238222-s2.0-84939440541https://d8.irins.org/handle/IITG2025/21424We have considered optical beams with phase singularity and experimentally verified that these beams, although classical, have properties of two-mode entanglement in quantum states. We have observed the violation of Bell's inequality for continuous variables using the Wigner distribution function (WDF) proposed by P. Chowdhury et al. [Phys. Rev. A 88, 013830 (2013)PLRAAN1050-294710.1103/PhysRevA.88.013830]. Our experiment establishes an alternate form of Bell's inequality in terms of the WDF which can be used for classical as well as quantum systems.falseArticlehttps://arxiv.org/pdf/1406.62391094162214 August 201519023822arJournal18